Sprite 1984 - 1993/Sprite 1984 - 1993.iso/src/cmds/gdb.new/gdb-4.0/gdb/ChangeLog

Text File | 1991-08-24 | 222.2 KB | 5,801 lines

Fri Aug 23 17:14:25 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * GDB-4.0 release!
    * Update README.
    * Makefile.in (VERSION):  Roll to 4.0.
    (gdb.tar.Z):  Make refcard.ps as well, for shipment.

Fri Aug 23 14:07:09 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/gdb.texinfo: minor rewordings, crossref to ptype from print,
    more on printsyms.

    * doc/Makefile, Makefile.in: generate "gdb-all.texi" rather than
    "gdb-all.texinfo"

    * doc/rdl-apps.texi: renamed from rdl-apps.texinfo

    * Makefile.in, doc/Makefile, doc/.Sanitize, doc/gdb.texinfo:
    reflect above name change

    * WHATS.NEW: correct pointer to refcard.

    * doc/gdb.texinfo: update New Features, Installing

    * doc/gdbint.texinfo: add short description of configure +template

Fri Aug 23 11:46:08 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/gdb.texinfo: update, fix bugs in "Installing" appendix

Fri Aug 23 01:02:00 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * Makefile.in:  Add config.sub, make doc/rdl-apps.texinfo for
    tar file, add dependencies for referenced doc files.

Thu Aug 22 22:17:06 1991  Stu Grossman  (grossman at cygint.cygnus.com)

    * coffread.c, symfile.c, stack.c:  saberized.

Thu Aug 22 16:20:27 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/refcard.tex: permuted Essential Commands sec

    * doc/gdb.texinfo: new C++ chapter; revised installation appendix;
    new doc for
        set/show symbol-reloading
        default set complaints 0
        info all-registers
        RET-repeat disabled after prompted long displays
        processID (attach) interpretation of 2nd GDB cmdline arg

Thu Aug 22 14:05:47 1991  Stu Grossman  (grossman at cygint.cygnus.com)

    * expread.y, coffread.c, dbxread.c, target.c, mem-break.c,
      cplus-dem.c, values.c, valprint.c, symfile.c, remote.c,
      breakpoint.c, main.c:  lint.

Thu Aug 22 02:02:26 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Install new configuration scheme for GDB and friends.

    * config.sub:  Translate ordinary names to three-part names.
    * configure:  Use three-part names internally.
    * configure.in:  Translate three-part names to filenames.

    * README, WHATS.NEW:  Update for gdb-4.0.
    * Makefile.in:  Roll VERSION to 3.99.

Wed Aug 21 18:21:09 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * infptrace.c (KERNEL_U_ADDR_BSD):  Include a.out.gnu.h.
    * i960-tdep.c, m68k-tdep.c, sparc-tdep.c, tm-i960.h,
    tm-m68k.h, remote-nindy.c:  Change ext_format_XXX structs
    to single structures rather than arrays; when passing
    their address, use &.  This avoids trouble with bdead compilers.
    * mcheck.c: Don't include <stdlib.h>; just declare "void abort();"
    instead.  This avoids portability headaches.
    * mips-tdep.c (mips_do_registers_info):  Only print FP regs if
    asked to.
    * source.c (open_source_file):  Avoid ANSI const bdeath by
    skipping declaration and then casting result value.
    * tm-hp300bsd.h:  Clarify comment.
    * utils.c (strstr):  Result is const char *; ANSI bdeath.
    * xm-hp300bsd.h:  Define HOST_BYTE_ORDER.  Redefine INT_MIN,
    since system include file defines it differently from "defs.h",
    though the two are equivalent for our purposes.
    * tconfig/hp300bsd:  Add m68k-tdep.o.

Tue Aug 20 16:01:11 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * tconfig/sun*4:  Remove warnings about system assembler.

Mon Aug 19 13:44:46 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * mcheck.c:  Avoid warning about undeclared abort fn.
    * tm-sparc.h (PC_ADJUST):  Avoid calling error() from this;
    it causes recursive calls to error() when used in cleanups.
    To do so requires that we make it a function, so we do.
    * sparc-tdep.c (sparc_pc_adjust):  New implem of PC_ADJUST.
    * utils.c (do_cleanups):  Remove the current cleanup from the
    chain *before* calling it, in case error() is called from it.
    The result won't be pretty, but won't be an infinite loop either.

Mon Aug 19 00:41:04 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * dbxread.c (read_struct_type): Grok anon structs for C++.
    (vb_name, vptr_name): Null terminate these strings.

Fri Aug 16 08:31:03 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Minor bug fixes from BSD Net2 gdb:

    * blockframe.c (get_prev_frame_info):  If FRAME_CHAIN_COMBINE
    returns 0, there is no previous frame.
    * breakpoint.c (commands_command):  If !from_tty, don't call
    input_from_terminal_p().
    * dbxread.c (record_misc_function):  Speed up slightly.
    (compare_psymbols):  Ditto.
    * infcmd.c (do_registers_info):  Take a second argument to
    determine whether to print float registers.  "info registers"
    does not do so anymore.  "info all-registers" does, now.
    * mips-tdep.c, pyr-tdep.c (xxx_do_registers_info):  Take second
    arg and ignore it.
    * tm-mips.h, tm-pyr.h (DO_REGISTERS_INFO):  Pass second arg.
    * inflow.c (initialize_inflow):  Set tflags_ours correctly.

    Other fixes:

    * breakpoint.c (bpstat_do_actions):  Use a cleanup to restore
    executing_breakpoint_commands if we are interrupted by error.
    * coffread.c (init_lineno):  Avoid problem with zero-sized linetab
    versus malloc/free.  From: [e-mail] (John Carey).
    * core.c (solib_add_stub, core_open):  Call SOLIB_ADD inside a
    catch_errors() so we can setup the frame regardless of whether
    the shared libs work.
    * ieee-float.c (double_to_ieee_extended):  Get exponent from
    right place in little-endian systems.  From John Carey.

Thu Aug 15 18:43:57 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * main.c: Remove unused terminating_signals and catch_termination().
    (long_options):  Terminate with a zero element.
    [Bugfix from Atsuo Kawaguchi <[e-mail]>.]
    (gdb_readline):  Make call-compatible with readline.
    (init_signals):  Improve comments re vfork vs. signal.

    * utils.c (prompt_for_continue):  Use new gdb_readline().
    If we prompt for continuation, we don't let CR repeat the previous
    command, once we get back to a prompt.  It's too easy to keep
    hitting CR, expecting "--more--" prompts, and have some long
    command start repeating on you.

Tue Aug 13 16:17:56 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * blockframe.c (frameless_look_for_prologue):  Speed up by
    calling SKIP_PROLOGUE_FRAMELESS_P if it's defined.
    * tm-sparc.h (SKIP_PROLOGUE, SKIP_PROLOGUE_FRAMELESS_P):
    Define two variants, one faster.
    * sparc-tdep.c (sparc_frame_chain):  Use target_read_memory
    and return zero, rather than giving an error.
    (setup_arbitrary_frame):  Initialize the PC in the new frame.
    (skip_prologue):  Add a second arg saying whether we're just
    checking for a frameless function or not.

    * core.c (core_open, core_close, core_xfer_memory):  Move
    section table pointers and bfd* into the target_ops.
    (core_open):  Allow errors in shared lib reading, etc.
    (core_files_info):  Describe shared library sections.

    * exec.c (exec_open, exec_close, exec_xfer_memory, xfer_memory,
    exec_files_info, set_section_command):  Move section table
    pointers and bfd* into the target_ops.
    (add_to_section_table):  Add BFD to section table.

    * target.c (target_xfer_memory, target_info):  Pass target to
    xfer_memory and target_info functions.
    * target.h:   ''

    * gdbcore.h:  Move struct section_table.
    * target.h:  New home of struct section_table.

    * solib.c (solib_add):  New argument is the target_ops whose
    section list is to be added to, if any.  Reallocate the
    sections in that target to add any that come from shared libs.
    (throughout) so_sections renamed to sections.
    (solib_xfer_memory):  Deleted.
    * tm-sunos.h (SOLIB_ADD):  Add target argument.
    (SOLIB_XFER_MEMORY):  Delete.

    * core.c, exec.c, inftarg.c, remote-eb.c, remote-nindy.c,
    remote-vx.c, remote.c, target.c, target.h:  Remove add_syms vector
    from target_ops.  It's the same on all targets.  Add two section
    pointers to target_ops.

    * stack.c (find_relative_frame):  Dump ancient algorithm for
    "down", just use handy "next" pointers.
    (frame_command):  Don't error if there is no stack; let user
    set one.

    * inflow.c (new_tty_prefork, new_tty):  New prefork routine
    modifies static state in the parent process; new_tty itself
    runs in the child and modifies the child's file descriptors
    to match the saved static state.
    * infrun.c (child_create_inferior):  Call new_tty_prefork,
    fork, then new_tty.

    * infptrace.c (child_xfer_memory):  Add ignored target arg.
    * remote-eb.c (eb_xfer_inferior_memory):  ''
    * remote-nindy.c (nindy_xfer_inferior_memory):  ''
    * remote-vx.c (vx_xfer_memory):    ''
    * remote.c (remote_xfer_memory):   ''.  Rename from
    remote_xfer_inferior_memory.

    * main.c (main):  Only try to attach "corefile" argument if
    it starts with a digit.

    * symfile.c (symbol_reloading):  New "set/show" variable.
    (symbol_file_add):  Shorten message about symbol reading.
    (add_symbol_file_command):  Merge with add_syms_addr_command,
    since this should work on all targets now.
    (stop_whining):  Default to zero, to shut up complaints
    about bad symbol tables on many systems.
    (free_named_symtabs):  Just exit unless symbol_reloading.

    * xm-sun3os4.h, xm-sun4os4.h:  Define BROKEN_LARGE_ALLOCA,
    and add comment explaining shared library screw.

    * source.c:  #if defined => #ifdef.

Thu Aug  8 12:23:19 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * doc/gdbint.texinfo:  Improve doc on porting to new OS's.

Tue Aug  6 17:16:15 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/rdl-apps.texinfo: provide default readline-appendix finder
    (doc/Makefile knows how to make one for local config)

    * Makefile.in: use doc/Makefile for doc targets

    * doc/Makefile: GDB documentation now has its own Makefile
      doc/refcard.tex: renamed from "gdbrc.tex"
      doc/.Sanitize: add Makefile; recognize renamed refcard.tex
      doc/gdbint.texinfo: add markup in "Cleanups" chapter


Fri Aug  2 00:13:06 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * values.c (baseclass_addr):  When reading target memory, use the
    length of the basetype, not the upper type.  We've only malloc'd
    enough space for the basetype, leading to errors in free().

    * expprint.c (print_subexp):  Print UNOP_MEMVAL of an OP_LONG that
    ends up as a function specially, since we know the actual type of
    the pointed-to address.  This (somewhat) fixes display of
    expressions that include misc_function_vector names.  Try `cond 1
    !strcmp("a","b")' then `i b'.

    * infrun.c:  Move DO_DEFERRED_STORES from proceed() to resume().
    The child can be proceeded from inside wait_for_inferior in
    evaluating breakpoint conditions, and DO_DEFERRED_STORES was
    getting skipped in that case.

    * expprint.c (print_subexp):  Use filtered output, since the
    subroutines we call use it, otherwise the output is horribly
    mangled, since output of wrappable stuff comes out late.

    * Makefile.in:  Bump VERSION to 3.98.1

    * infrun.c (child_create_process):  Use execlp to find the
    shell to exec our target program.  This requires some fiddling
    with `environ' since there is no execlpe().

Thu Aug  1 15:35:17 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * Makefile.in, doc/gdbrc.tex, doc/rc-* (new files):
    Minor rearrangement of refcard permits two new make targets--
    gdbrc.dvi        DVI output for refcard, using CM fonts
    gdbrc.ps        PostScript refcard, using PS fonts

Wed Jul 31 16:46:21 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * GDB-3.98 release.

    * TODO, Projects, WHATS.NEW, README:  Update for gdb-3.98.
    * Makefile.in (gdb-all.texinfo):  Avoid touching file if M4 dies.

Wed Jul 31 16:35:58 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/gdb.texinfo: last changes for release.
    Minor typo and formatting fixes; incorporated most fixes remaining from
    filed mail commenting on earlier drafts.

    Added warnings: pipes don't work in run command;
            conditions are converse of assertions;
              step over fn without debug info goes to next fn;
        vars may have "wrong" values near fn entrance, exit

    Added example from Kingston on printing repeated nonadjacent values

    Added explicit mention that in Emacs gdb mode C-c and C-z are like
    shell mode for signals

    Renamed "Stepping and Continuing" to "Continuing and Stepping" so it
    doesn't sound so much like its parent "Stopping and Continuing"; also
    moved entries on continue to top of section, so they don't get lost.

    Improved installation directions in appendix, added manual formatting
    instructions

Tue Jul 30 17:26:39 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * configure.in:  Remove xm.h and tm.h even if we aren't linking
    new ones, so "./configure sun4; ./configure none" does the right
    thing.  Assume that alldeps.mak and depend are already built in
    srcdir, and avoid running "make" (particularly "make depend",
    which involves "gcc") from inside configure.  Build Makefile
    directly rather than building Makefile.conf first.
    * configure:  Regenerate with above changes.
    * Makefile.in:  Use $(BISON) to find bison.  Roll VERSION
    to 3.98.  Revise gdb.tar.Z procedure to produce a file
    called gdb-$(VERSION).tar.Z but which unpacks into a
    directory called "gdb".  Move non-source files out of
    $(SFILES_SUBDIR).  Pretty up alldeps.mak with comments.
    (depend):  Don't try to do "gcc expread.y".
    (expread.o):  Update dependencies by hand.

Mon Jul 29 15:21:09 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/gdb.texinfo:
    Fixed a variety of small typos that prevented info from formatting
    cleanly; altered too-long heading for GPL Appendix, as discussed
    w/RMS; Changed date on cover to July 91.

Fri Jul 26 13:20:02 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * doc/gdb.texinfo:
    (1) Applied some fixes due to comments from Larry Breed (easier ones
    through chapsec 5.2)
    (2) Eliminated use of @footnote---had my doubts about it anyways, and
    it's broken in latest texinfo
    (3) Introduced *some* use of [] for optional arguments, where
    explanation is not simpler by listing cmd w arg and cmd w/out arg
    separately.  Still not using @deffn.
    (4) Dropped in GPL-2.  NOTE: one of GPL-2 or texinfo is broken; a
    couple of headings are too long.  Need patches to texinfo or revision
    to GPL-2.

    * Partial update to README (which still needs work for this
    release!): (1) use of configure corrected for new script,
                   (2) "make gdb.dvi" and "make gdb.info" mentioned.

Wed Jul 24 06:44:02 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * symtab.c (lookup_symbol):  Don't complain right off about
    no debug symbols; use the misc function vector first.
    (list_symbols):  Use misc function vector to find symbols
    that don't have debug info, and print them.
    (find_pc_symtab):  Temporarily avoid fatal() when psymtab
    PC range doesn't match symtab PC range, as it does on the
    MIPS because our symtab reading isn't perfect.

    * dbxread.c (dbx_symfile_read):  Make warning about
    "no debug symbols" slightly nicer.

    * source.c (select_source_symtab):  If "main" symbol exists,
    but decode_line_spec can't find line info, don't just return
    a zero; try other source symtabs or give an error.

    * mipsread.c (parse_partial_symbols):  Sort the psymtabs by
    their low addresses first, then rip through fixing high addrs.

    * ns32k-opcode.h (sfsr):  Bugfix from Rune Nerg}rd,
    <[e-mail]>.
    (NS32K_SVC_IMMED_OPERANDS):  Reverse the #ifndef.

Tue Jul 23 18:52:43 1991  Roland H. Pesch  (pesch at cygint.cygnus.com)

    * Minor, mostly mechanical, cleanup of doc subdir for clean
    makeinfo'ing and TeXing; also ensured gdb-all.texinfo (post-m4)
    and gdb.info (post- texinfo2 makeinfo) generated for distribution.

Sun Jul 21 03:54:52 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Mostly MIPS and general symbol-reading fixups.

    * doc/gdbint.texinfo:  Add documentation on symbol-reading
    interface.

    * mipsread.c:  Remove kludges around #include "ecoff.h".
    Remove redefinitions of a_magic, etc, no longer used.
    (parse_symbol, ):  Convert "Internal:" printfs to complain()ts.
    Fix global overview comments to match symfile.c protocol.
    (mipscoff_new_init):  Eliminate cur_hdr if we have one.
    (mipscoff_symfile_read):  Eliminate unused code.  Avoid
    sorting all the symtabs, when all we have read here is psymtabs.
    The symtabs are sorted as they are created anyway.  Tell
    condense_misc_bunches whether we're mainline.
    (psymtab_to_symtab_1):  Pass filename when recursing, to make
    stack trace more informative.
    (parse_partial_symbols):  Assume cur_hdr as argument.
    (read_mips_symtab):  Don't clobber cur_hdr, so it can be freed.
    Pass cur_hdr implicitly to parse_partial_symbols.  Avoid checking
    the TYPE_NAME of char *, since that's done in symfile.c.
    (free_numargs, parse_symbol, add_symbol, add_block,
    shrink_linetable):  Declare these fns void.
    (upgrade_type):  Convert tree of if's to switch.  Clean up
    bogus "off == 0" handling with a complaint.  Avoid setting
    field bitpos and bitsize of array with lower and upper bounds.
    Check specified bitsize of elements against their actual type's
    bitsize, and complain if different.  Complain about unknown
    type qualifiers.
    (parse_fdr):  Don't assume sizeof(char *) == sizeof (struct *).
    (psymtab_to_symtab_1):  Print names of subsidiary files that
    are being read in.  FIXME, we read far too many files.  This code
    is not the problem, the problem is in parse_fdr where the psymtabs
    are set up.
    (cross_ref):  Result should indicate that we used one aux entry
    normally, or two if we encountered a "next" entry.  This used
    to leave the caller pointing at the wrong aux entry.
    (add_symbol):  If overflowed cur_block, reallocate it larger,
    chase all pointers to it, and complain(), rather than clobber memory.
    (shrink_block):  Use xrealloc rather than xmalloc-and-copy.
    (new_field):  Only allocate one field initially, not two.
    Pull ++ out of macro argument.  Simplify.
    (_initialize_mipsread):  Avoid initialization of importd
    global_psymbols and static_psymbols.

    * symfile.c (psymtab_to_symtab):  Depend on XXX_psymtab_to_symtab
    to properly set pst->symtab; avoid searching for it.
    (symfile_fns):  Improve comments, add a FIXME.
    * dbxread.c:  Update comments to reflect symfile protocol.
    (read_ofile_symtab, end_symtab):  Return the symtab.
    (psymtab_to_symtab_1):  Set pst->symtab.

    * coffread.c (coff_symfile_read):  tell condense_misc_bunches
    whether we're mainline.

    * symfile.h (sym_fns):  Remove unused sym_discard member.
    * coffread.c, mipsread.c, dbxread.c:  Remove XXX_symfile_discard.

    * mtrace.c (mtrace):  Take effect if mallwatch is set, even if
    the environment variable is not.
    * infcmd.c (finish_command):  Use filtered printfs.
    * cplus-dem.c:  Add struct tags to a few unnamed structs.
    * valops.c (value_coerce_array):  Improve comments.
    * valprint.c (type_print_varspec_suffix):  Print array size only
    if greater than zero.
    * m88k-tdep.c:  Shift some lines left by one space, that had
    apparently been trashed at some point.
    * TODO:  More things to do, a few got done.

Thu Jul 18 22:46:05 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * symtab.h (LOC_EXTERNAL):  Eliminate in favor of LOC_STATIC.
    (ldsymoff, ldsymlen, globals_offset, statics_offset): Improve
    comments.
    * dbxread.c (read_dbx_symtab):  LOC_EXTERNAL -> LOC_STATIC.
    * expread.y, findvar.c, symmisc.c:  Ditto.
    * printcmd.c (address_info):  Update printed forms of LOC_
    symbols.  Elim LOC_EXTERNAL.
    (print_frame_args):  Keep track of param stack offsets before
    re-looking up to find the local register param is kept in.

    * mipsread.c:  Use <symconst.h> and <sym.h> rather than <syms.h>.
    Further integration of mipsread into gdb.  Eliminate unused
    routines, duplicate declarations.  Handle static symbols in
    psymtabs as well as external symbols.  When reading symtabs,
    insert symbols into the correct block (global, static, or a local
    block).
    (read_mips_symtab, parse_partial_symbols):  Don't pass useless
    "incremental" arg.
    (mipscoff_symfile_read):  Don't call select_source_symtab.
    (parse_symbol):  Use SYMBOL_VALUE_ADDRESS where appropriate,
    rather than SYMBOL_VALUE.
    (parse_external):  Comment clobbering of top_stack.
    (parse_partial_symbols):  Update comments.  Allocate and parse
    static symbols as well as external symbols.  FIXME, enum values
    are not handled in this pass, but should be.  Inline new_psymbol.
    Use SYMBOL_VALUE_ADDRESS.
    (psymtab_to_symtab_1):  Read symbols into global static block
    by default (until enter some function's local block context).
    (sort_blocks):  Clean up STATIC_BLOCK as well as GLOBAL_BLOCK.
    (destroy_all_symtabs, new_psymbol):  Eliminate, unused.

    * source.c (select_source_symtab):  Select a source symtab
    from either the symtabs or, failing that, the psymtabs.
    (list_command):  Update error message.
    (forward_search_command, reverse_search_command):  Use getc, not
    fgetc, for speed.  FIXME, add comment about buffers that die if
    overrun by long line.

    * values.c (unpack_field_as_long, modify_field):  Avoid shifting
    by an entire word, which is not portable, if we have a 32-bit
    field.  (Code in dbxread.c already turns such bitfields, if
    aligned, into ordinary ints, but fixing this will help for other
    symbol formats and for future changes.)
    * core.c (core_open):  Handle ANSI const brain death.
    * utils.c (vprintf):  Fix varargs typo.

Sun Jul 14 00:42:53 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * findvar.c (find_var_value):  Handle &function better.
    * TODO:  Document work needed on &fn and &array.
    * printcmd.c (print_address_symbolic):  New arg is the prefix
    to print if a name is printed.
    (print_address_demangle):  Honor "set print address" now.
    Use new arg above to improve spacing of output.
    * valprint.c (val_print):  When printing function pointers,
    print symbolic form too.
    * breakpoint.c (breakpoint_1):  Use new print_address_symbolic.

Mon Jul  8 19:02:46 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * core.c (memory_error):  Reword error msg to mislead less.

    * mips-pinsn.c (print_insn_arg 'd'):  Print $ with reg name.

    * mipsread.c (read_mips_symtab, read_the_mips_symtab,
    parse_partial_symbols): Use newer BFD internals (external_filehdr
    and external_aouthdr), byte-swap the fields that we care about
    before using them, and make the file header data local to
    read_the_mips_symtab rather than global.

Sat Jul  6 01:34:15 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * ns32k-opcode.h (movmw, movmd):  Fix opcodes.  Bug fix
    from Rune Nerg}rd <[e-mail]> on 5 Jul 1991.

    * main.c (command_line_input):  Flush stdout and stderr
    before every call to readline.  This reportedly fixes a bug
    that comes up in Sys V running emacs-gdb and/or xxgdb,
    when stdin/out are pipes or sockets.

Thu Jul  4 14:47:06 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * configure.in, Makefile.in:  Avoid rebuilding "depend" as much.
    Avoid declaring Makefile dependencies, because GNU Make stupidly
    tries to update it if we do.

    * coffread.c:  Revise for minor changes to bfd internal coff
    indexes.

    * configure:  If -template= is given a relative path, make it
    absolute before recurring in subdirectories.

    * configure, configure.in, Makefile.in:  Install "configure" script
    as replacement for config.gdb.
    * config.gdb, Makefile.dist, Makefile.sdir:  Remove
    * README:  Update for configure, mostly.  FIXME.

    * Add dec3100 as equivalent to littlemips.  Indicate in all host &
    target config files that they are for the host.  When the lines
    get copied into the Makefile, this makes it more obvious what's
    up.

Mon Jun 24 23:49:07 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * sparc-opcode.h (trap opcodes):  Avoid leading spaces or
    tabs, which end up in the disassembler output inadvertently.

Wed May 29 23:01:03 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Make it compile cleanly in an ANSI GCC2 environment.

    * blockframe.c:  <stdio.h>
    * cplus-dem.c:  free takes a void *, ifdef __STDC__
    * dbxread.c (read_huge_number):  avoid gcc2 bug hoisting calc of
    LONG_MAX/radix.
    * defs.h (alloca):  Avoid doing anything if alloca already def'd.
    * stddef.h, stdlib.h:  Remove these files.
    * symtab.c:  Avoid declaring qsort, close.
    * symfile.c:  Avoid declaring close.
    * utils.c (vprintf):  Declare "ap" arg as proper va_alist.
    * sparc-tdep.c:  Avoid including lots of Sun-host-specific files.

    Assorted other changes.
    * dbxread.c:  include "libaout.h", not "liba.out.h".
    * printcmd.c (print_frame_args):  Set recurse properly for
    indentation of struct and array parameters.
    * valops.c (value_cast):  Allow cast to void.
    * infrun.c (resume):  If NO_SINGLE_STEP, call machine dependent
    single_step() in a target-independent fashion.
    * sparc-tdep.c (single_step):  Don't call ptrace ourselves, just
    set up to be ready to continue.  This makes us target independent.
    * infptrace.c (child_resume):  Remove call to single_step; now
    can single step a SPARC target of any kind.

Wed May 22 18:18:24 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * Makefile.dist, doc/gdb.texinfo, doc/*-m4.texinfo: split up GDB
    docn into separate sections---basically chapters, plus two loose
    pieces that can be configured to go in different places.  This
    allows GNU m4 to preprocess the manual without coredumping.

    * Makefile.dist: tell TeX where to find texinfo.

Mon May 20 12:15:04 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * Makefile.dist, doc/gdb.texinfo: respectively create, and use,
    the new target "rdl-apps.texinfo" which captures the Makefile
    variable that records where to find the Readline libraries.

Sun May 19 05:36:59 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * tahoe-pinsn.c:  #include "tahoe-opcode.h", not "opcode.h".
    * tm-tahoe.h (FIX_CALL_DUMMY):  Ignore more parameters.
    * defs.h (const, volatile):  Only define if not already defined.
    * Makefile.dist (gdb.tar.Z):  Create doc subdir w/out CVS/RCS crud.

    * README:  Update for release 3.95.
    * config.gdb:  Don't create readline dir in subdir builds.
    * main.c:  Include with "..." form for non-system include files,
    so "gcc -MM" for "make depend" works.
    Include readline files with "...h" rather than <readline/...h>.
    * mipsread.c:  Include "ecoff.h" rather than "intel-coff.h".

    * coffread.c:  Undo minor damage done by Rich Pixley.  Use
    different internal and external representations of COFF
    data structures.  Use new BFD routines for swapping them in and
    out.
    * symfile.c (free_named_symtabs):  Avoid freeing file names that
    are null or empty.  Old i960 tools seem to produce files that
    claim to have empty names, causing each successive file read
    to blow away the previous one.
    * sparc-xdep.c (deferred_stores):  Repair minor damage by Rich.
    Move deferred_stores to top of file, but don't separate its
    #define's from its variable.  Add commentary.
    * Makefile.dist:  Fix Rich damage; undo "configure" changes in
    favor of keeping the (working) config.gdb.  Move readline
    library up a notch.

Fri May 17 12:49:56 1991  Per Bothner  (via gnu at cygint.cygnus.com)

    * dbxread.c (read_struct_type):  Try to handle g++ version 1 MI
    debug info.
    * infptrace.c (fetch_registers):  no result, since now void.
    * tconfig/news:  target depends on m68k-tdep too.

Fri May 17 14:40:14 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * Makefile.dist: added readline/inc-*.texinfo to dependencies for
    gdb.dvi target

    * readline/inc-history.texinfo, readline/inc-readline.texinfo:
    applied various small fixes due to or inspired by RMS comments

    * doc/gdb.texinfo: finished using all RMS comments, save those for
    appendices on readline and cmd history (which are in other source
    files)

Thu May 16 18:06:05 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * doc/gdb.texinfo: (1) Updated w/ref to RMS comments through
    chapter 9; (2) documented 'break' command's menu mode for
    overloaded names, in response to hgs problem report C++ p-31

Wed May 15 11:02:48 1991  Roland H. Pesch  (pesch at fowanton.cygnus.com)

    * doc/gdb.texinfo: (1) better introductory example; (2) more
    consistent use of @code, @samp, @file, @kbd throughout; small
    cleanups to first three nodes; (3) new "Contributors" node;
    (4) Appendix, Renamed Commands; (5) divert specialized startup
    instructions to "Targets" chapter for generic manuals, while
    leaving them up front for manuals specific to specialized
    environments; (6) apply fixes from RMS comments through chapter 4.

    * pretex.m4: modify explanatory text slightly (and redefine
    "regexp") to keep GNU m4 from complaining.  (It still crashes
    later, but one step at a time...)

Wed May 15 10:32:12 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * readline/readline.c (update_line):  Avoid dereferencing a pointer
    before comparing it to its bounds.  Saber caught this.
    (init_terminal_io):  Don't set BC from the "pc=" termcap variable,
    and only set PC if tgetstr returned non-null.  Saber caught this.

Tue May 14 16:29:53 PDT 1991  Roland Pesch (pesch at cygint.cygnus.com)

    * Makefile.dist: put gdb.dvi stuff (updated to use M4 preprocessor
    stuff for config manual) here where it counts; updated
    to use new subdir structure (gdb/doc/).

    * Makefile: generated from above via
            config.gdb none
    before checkin

    * gdbint.texinfo: added instructions on generating gdb.info* files
    locally for release.  These are ordinary info
    files, formatted from gdb.texinfo (via gdb-all.texinfo, see
    Makefile)---but due to use of texinfo 2, can't count on makeinfo
    to generate these, so we distribute them already formatted.

    * gdb.texinfo: included full Info node and menu crud (as generated
    by C-u M-x texinfo-master-menu using the texinfo-2 elisp code).

    * Makefile: updated "gdb.dvi" target to use M4 preprocessor;
    put in comments-for-future gdb.info target (one day makeinfo will
    work again).

Tue May 14 13:51:36 PDT 1991  Roland Pesch (pesch at cygint.cygnus.com)

    * gdb.texinfo: Updated to include new or old undocumented
    commands, at least the following (perhaps some others I forgot to
    record): info f, info float, info path, info program, info s, info
    set, info source, info terminal, info types, info user, set/show
    print object.
    Also covered all recent GDB command renames for v4.

Mon May 13 14:57:46 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * mipsread.c:  Rather than keeping count of how many symtabs
    and psymtabs we have, for sorting purposes, count them when
    we need to sort.  This fixes bug in rereading of symbol tables.

Fri May 10 15:43:33 PDT 1991  Roland Pesch (pesch at cygint.cygnus.com)

    * infcmd.c: renamed "info path" to "show paths"
        * gdbrc.tex: documented above.

Wed May  8 04:51:11 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * remote.c:  Fix comments.
    * utils.c (error):  Force out any pending wrap output.

Sat May  4 11:11:07 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * Makefile.dist:  Roll VERSION to 3.95.
    Fix up "saber_gdb" to work again.
    * saber.suppress:  Update.

    * coffread.c, exec.c, infptrace.c, inftarg.c, remote.c, solib.c,
    symtab.h, target.c, target.h:  Lint.
    * core.c:  setup and select frame after reading shared libs,
    else reading shared libs will clobber them.  Lint.
    * utils.c (error):  Force out any buffered wrap text.

Fri May  3 22:01:56 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * remote.c:  Remove decls of memory_insert_breakpoint
    and memory_remove_breakpoint, no longer used.  (Suggestion of
    Jan Norden).

    * Makefile.dist:  use ${subdir} in paths of BFD and LIBIBERTY,
    to make it easier to interface to "configure"'d libraries.

Fri May  3 13:10:01 PDT 1991  Roland Pesch (pesch at fowanton.cygnus.com)

        * valprint.c:  introduce "set p", "set pr", "show p" and "show pr" as
    aliases for set/show print.

Thu May  2 11:22:02 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * coffread.c (coff_sym_fns) [TDESC]: Make the type be m88kbcs.

    * m88k-tdep.c (IEEE_isNAN): New function.

    * infrun.c, m88k-tdep.c, m88k-xdep.c: Change
    initialize_{tdesc,dcontext} to init_{tdesc,dcontext}.

    * infrun.c [TDESC]: Add a bunch of crud.

    * xm-88k.h [__GNUC__]: Don't define memset.

    * m88k-xdep.c: #if 0 out push_breakpoint.

    * tm-88k.h: Define GET_SAVED_REGISTER.

    * tm-88k.h: Define DGUX.

    * m88k-opcode.h (UEXT, SEXT, MAKE): Put parentheses around arguments.

    * m88k-pinsn.c (sprint_address): Declare at top of file.

    * m88k-xdep.c: #if 0 out core_file_command.

    * values.c ({unpack_,value_as_}pointer): Just call
    {unpack_,value_as_}long (for now anyway).

    * m88k-tdep.c (get_saved_register): Make get_reg a dc_word_t (*)().
    (psr_register): Change return type to dc_word_t.

    * m88k-tdep.c (tdesc_read_function): Comment out call to ptrace.

    * m88k-tdep.c (get_saved_register): Add lvalp parameter.

    * gdbcore.h (write_memory): Don't prototype it.

    * tm-88k.h, m88k-tdep.c: Make stack_error, stack_jmp global.
    m88k-xdep.c: Don't mention stack_error.

    * {x,t}config/m88k ({X,T}DEPFILES): Add missing files.

    * mtrace.c: Don't typedef things like size_t, just #define them.

    * coffread.c [TDESC]: #if 0 out references to coffsyn.

    * symtab.h (struct symtab): Include EXTRA_SYMTAB_INFO.
    tm-88k.h: Define EXTRA_SYMTAB_INFO.

    * coffread.c [TDESC]: Include "tdesc.h" and make tdesc_handle
    dc_dcontext_t not int.

    * coffread.c [TDESC]: Use system include files not <intel-coff.h>.

    * coffread.c [TDESC]: Move setting of debug_info from
    coff_symfile_read to find_linenos and make it work with BFD.

    * cplus-dem.c [__STDC__]: Make x{m,re}alloc return void*.

    * signame.c: Cast const char* to char* when assigning to sys_siglist.

    * utils.c (strsave): Make arg const char* not char*.

    * infrun.c (wait_for_inferior) [SHIFT_INSN_REGS]: Use
    bpstat_explains_signal (stop_bpstat) not stop_breakpoint.

    * tm-88k.h (START_INFERIOR_HOOK): Make tdesc_handle a dc_handle_t.

    * tm-88k.h (EXTRACT_RETURN_VALUE): Use char * not void *.

    * findvar.c (read_var_value, case LOC_CONST_BYTES): Put the address
    in a char *, not a CORE_ADDR.  Use SYMBOL_VALUE_BYTES.

    * tm-88k.h (INIT_EXTRA_FRAME_INFO): Use fci not prev (fci is
    prev except from create_new_frame).  Make next_frame a
    local variable.
    Declare get_prev_context.
    {x,t}m-88k.h: Enclose USG and BCS defines in #if !defined.
    m88k-{opcode.h,pinsn.c,xdep.c,tdep.c}: New files (same contents as
    before; they had just been left out of the distribution for a long
    time).

Thu May  2 17:53:56 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Mips bringup and general cleanup

    * cplus-dem.c:  Move CPLUS_MARKER define to after defs.h.
    * infptrace.c (PT_WRITE_D, PT_READ_D):  Use correct values.
    (This still doesn't seem to make MIPS bkpts work.)
    * mipsread.c:  Remove dup "Reading symbol data..." msg.
    (symbol_file_command, add_file_command):  Remove, obsol.
    * printcmd.c (ptype_command):  Say "an enum" rather than "a enum".
    Wrap output appropriately.
    * stack.c (locals_info, catch_info, args_info):  Check
    selected_frame rather than target_has_stack or coredumping.
    * valprint.c (type_print_varspec_suffix):  Wrap "ptype" output of
    enums appropriately.

Wed May  1 14:10:22 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * signame.c: Include defs.h and param.h.

    * cplus-dem.c: Include defs.h and param.h.
    Makefile.dist: Don't hack in the "param.h".
    param.h: Don't include defs.h.

    * expread.y: Use a union to deal with the fact that type_stack
    can have both ints and enum type_pieces in it.
    ({push,pop}_type_int): New functions.

Tue Apr 30 13:18:58 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * cplus-dem.c (cplus_mangle_opname): Don't call error.
    values.c (check_stub_method): Call error if NULL return from
    cplus_mangle_opname.

    * blockframe.c, breakpoint.c, core.c, command.c, findvar.c,
    eval.c, expprint.c, infcmd.c, infrun.c, main.c, printcmd.c,
    remote.c, source.c, stack.c, dbxread.c, coffread.c, symfile.h,
    symfile.c, utils.c, valarith.c, values.c, valops.c, tm-68k.h,
    target.c, inftarg.c, ieee-float.c, environ.c, defs.h,
    command.h, inferior.h, gdbcore.h, symtab.h, expression.h,
    symtab.c, cplus-dem.c, value.h, expread.y, valprint.c,
    copying.awk, solib.c, inflow.c, symmisc.c
    : Lint.  Use read_memory not read_memory_integer on CORE_ADDR's.
    Use {value_as,unpack}_pointer (added to values.c)
    not {value_as,unpack}_long on CORE_ADDR's.
    Use longest_to_int (added to defs.h) instead of cast to int.
    Remove from_tty arg to mod_path.
    Put symfile_bfd in {coff,dbx}read.c not symfile.h.
    Use OP_NULL instead of 0 where dummy enum exp_opcode needed.

    * tm-sparc.h: Remove GET_RWINDOW_REG.
    (FRAME_CHAIN): Call sparc_frame_chain.
    sparc-tdep.c (sparc_frame_chain): New function.
    tm-sparc.h (EXTRACT_STRUCT_VALUE_ADDRESS): call
    sparc_extract_struct_value_address (added to sparc-tdep.c).

    * xm-sun386.h: Don't define SET_STACK_LIMIT_HUGE.

Tue Apr 30 13:13:33 1991  Michael Tiemann  (tiemann at cygint.cygnus.com)

    * valprint.c (type_print_base): If the type being printed is a
    struct containing undefined types, print "<undefine type>"
    as the type instead of crashing.
    * values.c (value_headof): Get the vtable pointer taking
    TYPE_VPTR_BASETYPE into account.
    * symtab.c, symtab.h, dbxread.c: Fix various whitespace splotches.

Mon Apr 29 13:22:51 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * Move BROKEN_LARGE_ALLOCA from tm-sun386.h to xm-sun386.h.

    * sun386-xdep.c [!GDB_TARGET_IS_SUN386]: Just provide empty
    functions which don't do anything.
    tm-sun386.h: Define GDB_TARGET_IS_SUN386.

    * Makefile.dist: Add comment about tm-sun3os4.h: tm-sun3.h, etc.

    * sun3-xdep.c, tm-sun3.h, tm-68k.h: Change TARGET_SUN3 to
    GDB_TARGET_IS_SUN3.

    * infrun.c: Don't include sys/user.h and friends (wrong for
    cross-debugging and not necessary anymore (see IN_SIGTRAMP in
    xm-vax.h)).
    [SET_STACK_LIMIT_HUGE]: Include <sys/{resource,time}.h>.
    xm-tahoe.h: Don't define _DIRENT_.

    * xm-tahoe.h: Remove USE_OLD_TTY (not needed now that terminal.h
    includes sgtty.h before sys/ioctl.h).

Sun Apr 28 22:04:47 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * param-no-tm.h: Make BITS_BIG_ENDIAN defined to 0/1, not defined
    or not defined.  Don't define it based on TARGET_BYTE_ORDER if
    it's already defined (in the tm.h file).
    mips-opcode.h (BIT_FIELDS_*),
    values.c (modify_field, unpack_field_as_long):
    Use #if BITS_BIG_ENDIAN not #ifdef BITS_BIG_ENDIAN.
    {x,t}m-tahoe.h, tahoe-pinsn.c, tahoe-opcode.h: New files.

Fri Apr 26 12:02:06 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * tm-sparc.h: Add comments about gcc version 2 and structure passing.

    * xconfig/i386v{,32}{,-g}: Add XM_CFLAGS=-Dgetpagesize()=4096.
    gmalloc.c: #if 0 out !HAVE_GETPAGESIZE code.

    * expread.y (abs_decl): Accept '&' and '&' abs_decl.

    * symtab.c, symtab.h: Have a builtin_type_{,unsigned_}long_long
    regardless of LONG_LONG.
    defs.h (TARGET_LONG_LONG_BIT): New macro.
    expread.y (typebase): Add {unsigned,} long long {,int}.

Thu Apr 25 12:31:22 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * valops.c (typecmp): If t2 == 0, return 1.

Wed Apr 24 09:45:17 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)
    Changes from Tiemann:
    * cplus-dem.c (optable): Add "nw", "dl", "compound".
    (cplus_mangle_opname): New function.
    (do_type): Add case 'Q'.
    * values.c (check_stub_method): Do lookup_method_type and stuff
    rather than smash_to_method_type.
    symtab.c, symtab.h (allocate_stub_method): New function.
    dbxread.c (read_type): If we get "##", don't lookup_function_type
    and start clobbering it; allocate_stub_method instead.
    * printcmd.c (x_command): Dereference references.
    * valprint.c (type_print_varspec_prefix, case TYPE_CODE_METHOD):
    Don't print " " type_print_base (...) "::" if !passed_a_ptr.
    * dbxread.c (read_struct_type): Put "op$" instead of "operator"
    in the symbol table.
    * values.c (check_stub_method): Deal with operator names.
    * valprint.c (cplus_val_print): Check for error in baseclass_addr.
    * values.c: Move declaration of cplus_demangle to top of file.
    * values.c (baseclass_addr): If can't read memory, set *ERRP
    rather than calling error().
    * value.h: Remove redundant declaration of value_static_field.
    * values.c (value_static_field): Recursively check all baseclasses.
    Return NULL if not found.
    * values.c, value.h: New functions value_{headof,from_vtable_info}.
    * valprint.c (val_print): Print out first element of vtbl
    specially.
    * valprint.c: Move print controls to top and add objectprint.
    Add command "set print object on/off".
    * valprint.c (value_print, is_vtbl_member): Put things in local
    variables rather than continually doing VALUE_TYPE (val), etc.
    * valops.c (value_struct_elt_for_address): Call check_stub_method.
    * valops.c (value_struct_elt): Remove found, arg1_as_ptr.
    * valops.c (search_struct_method): Give error if j > 0 && args == 0.
    * valops.c (search_struct_field): New argument looking_for_baseclass.
    Give error if value_static_field or value_primitive_field
    return NULL.
    valops.c (various): Call search_struct_field with extra parameter.
    * symtab.c (decode_line_1): Deal with operators specified as
    "operator" <optional whitespace> <symbols for operator>.
    (operator_chars): Help do it.
    * symtab.c (lookup_struct_elt_type): Call check_stub_type.
    Take additional argument noerr.
    Don't dump core if TYPE_FIELD_NAME is NULL.
    Check the baseclasses recursively.
    * symfile.c (fill_in_vptr_fieldno): Don't call check_stub_type.
    Return void not int. (also declarations in symfile.h and value.h).
    Deal with multiple inheritance.
    * printcmd.c (print_command_1): Add if (objectprint) code.
    * expread.y (variable): Allow for destructor with foo::~name.
    * eval.c (evaluate_subexp, case UNOP_LOGNOT): If following opcode
    is OP_SCOPE, give an error.
    * eval.c (evaluate_subexp): Pass third arg to lookup_struct_elt_type.
    * eval.c (evaluate_subexp), values.c (value_virtual_fn_field):
    Don't bother to do anything with
    return value from fill_in_vptr_fieldno.
    * eval.c (evaluate_subexp): If value_static_field returns NULL,
    give an error.
    * dbxread.c (read_struct_type): Set fcontext to 0 for normal member
    function.
    * dbxread.c (read_struct_type): Initialize name to 0.
    * dbxread.c (read_ofile_symtab, N_CATCH): Add offset to bufp->n_value.
    * dbxread.c (dbx_create_type): Zero TYPE_VPTR_BASETYPE.
    (read_struct_type): Don't bother to set TYPE_VTPR_{BASETYPE,FIELDNO}
    if it's just going to be {0,1}.

    * dbxread.c (virtual_context): Use TYPE_BASECLASS starting at 0
    (yes, it's #if 0, but just in case...).

    * vax-opcode.h, expread.y, expprint.c, cplus-dem.c: Declare some
    things "const".

    * i386-stub.c: New file.

    * WHATS.NEW: Remove mention of readline and more paging (in 3.5).
    Try to keep command names up to date with renaming.

    * gmalloc.c [!HAVE_GETPAGESIZE]: Try to figure out the pagesize.

    * infun.c (resume, resume_cleanups): New functions.
    (wait_for_inferior, proceed, child_create_inferior): Use resume
    not target_resume.

    * remote.c (getpkt): Don't set immediate_quit.

    * blockframe.c, frame.h (reinit_frame_cache): New function.
    solib.c (solib_add), symfile.c ({,add_}symbol_file_command):
    Use it.

Tue Apr 23 10:38:41 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * symtab.c (lookup_symbol): Add 3 more of those loops through
    the symtabs which we all know and love: (1) Look in the
    STATIC_BLOCK for mangled symbols right after we check the blocks,
    (2, 3) Look in the STATIC_BLOCK for all the symtabs and psymtabs
    at the end.

    * main.c (cd_command): Call dont_repeat.

    * dbxread.c (read_struct_type): If const/volatile character is
    missing, don't complain, just continue.

    * dbxread.c (read_struct_type): Only try to read the fcontext if
    it is there.  Also change "error_type " to "return error_type ".
    values.c (value_virtual_fn_field): If there is no fcontext,
    then do things the way GDB 3.x did.
    valops.c (search_struct_method): Add type to value_virtual_fn_field
    arguments.

    * dbxread.c (read_struct_type): Fix typo: *pp != '\0' -> **pp != '\0'.

Mon Apr 22 00:02:43 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * printcmd.c (print_scalar_formatted): Add 't' for binary.

    * dbxread.c (end_psymtab): Initialize pst->symtab.

    * core.c (core_open): Call ADD_SOLIB.

    * tm-sparc.h: Include <sun4/reg.h> not <machine/reg.h>.
    sparc-tdep.c: Don't include <machine/reg.h>.

    * sun3-xdep.c [!TARGET_SUN3]: Just provide empty functions which
    don't do anything.

    * core.c (core_open): Add make_cleanup (unpush_target, &core_ops).

    * Shared library/corefile changes from Peter Schauer:
    core.c (core_close): Call CLEAR_SOLIB.
    (core_open): Remove comment about "should deal with shared lib".
    (core_xfer_memory): If we can't xfer the usual way, try the
    shared libraries.
    solib.c (so_list): New fields so_bfd and so_sections{,_end}.
    (find_solib): Use solib_map_sections to get ld_text.
    (solib_map_sections, solib_xfer_memory): New functions.
    (clear_solib): Free so_sections and close so_bfd.
    tm-sunos.h: Add solib_xfer_memory, solib_add.

    * sparc-tdep.c (skip_prologue): Don't skip anything unless there
    is a "save" instruction in there somewhere.

    * symfile.c (symbol_file_add): Add comment.
    solib.c (solib_add): Don't malloc name passed to symbol_file_add.

    * exec.c (build_section_table): If *start isn't NULL, free it.

    * stack.c (parse_frame_specification): Error if NULL selected_frame.
    infcmd.c (finish_command): Error if NULL selected_frame.
    inflow.c (kill_command): Deal with NULL selected_frame.
    stack.c (record_selected_frame): Set *FRAMEP to NULL if there
    is no selected frame.
    infrun.c (restore_inferior_status): Add comment.
    findvar.c (read_var_value): Check for NULL frame where we need
    a frame.
    breakpoint.c (get_catch_sals): Check for NULL selected_frame.

    * breakpoint.c (bpstat_print): Try all elements on the bpstat
    chain before giving up with an internal error.

Sun Apr 21 21:43:10 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * value.h, values.c (value_{,free_to_}mark): New functions.
    breakpoint.c (bpstat_stop_status): Use them.

    * tm-i386v{,-g}.h: Remove N_SET_MAGIC define.

Sat Apr 20 21:42:47 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * i386-tdep.c: Remove unnecessary #includes.

    * symtab.c (various): Change error return of find_line_common to -1.

    * coffread.c (find_linenos): Use LINESZ not sizeof (struct lineno).

    * coffread.c (end_symtab): Initialize language, dirname, and
    fullname fields.

Fri Apr 19 18:18:31 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * mips-tdep.c (mips_frame_chain): Don't chain if saved_pc == 0.

    * stddef.h (size_t): Let either _SIZE_T or _SIZE_T_ guard it.

    * mipsread.c (parse_symbol): Set startup_file_{start,end} if
    entry_point is in current file.

    * findvar.c (read_register_gen): Add "target byte-order" comment.

Wed Apr 17 17:09:48 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * i386-tdep.c (i386_get_frame_setup): Use SWAP_TARGET_AND_HOST
    before returning locals or slocals.

    * i386-tdep.c (i386_follow_jump): Do not add data16 to pos in
    call to codestream_seek; add one to pos if (and only if)
    we are dealing with a jump with data16 == 1 (i.e. 0x66, 0xe9).

Mon Apr 15 12:04:32 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * valops.c (call_function_by_hand): Put dummy1 in target order
    before FIX_CALL_DUMMY.

    * tm-i386v.h (FIX_CALL_DUMMY): Don't depend on host byte order.

Sun Apr 14 11:55:19 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * valops.c (push_word): Add SWAP_TARGET_AND_HOST.

    * remote.c (remote_open): Send '+' before calling putpkt().

    * tm-i386v.h (REGISTER_VIRTUAL_TYPE): Return pointer to void,
    not int, for pc, fp, and sp.

    * remote.c (remote_open): Call start_remote after putpkt("?");
    infrun.c (start_remote): Also call wait_for_inferior & normal_stop.

Sat Apr 13 22:11:42 1991  Jim Kingdon  (kingdon at spiff.cygnus.com)

    * exec.c: Include <ctype.h>.

    * sun3-xdep.c (fetch_core_registers): Add #ifdef FP0_REGNUM.

Fri Apr 19 09:36:50 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * tm-68k.h (NUM_REGS): Conditionalize on TARGET_SUN3 not sun.
    tm-sun3.h: Define TARGET_SUN3.

    * utils.c: Use CPLUS_MARKER not '$'.

    * cplus-dem.c: Use CPLUS_MARKER not '$'.  If CPLUS_MARKER isn't
    defined, define it to '$'.

    * arm-opcode.h: New file (same contents as before; it had
    just been left out of the distribution for a long time).

    * tm-68k.h: Put declaration of ext_format_68881 outside the macros.

    * main.c: New HAVE_SIGSETMASK #ifdefs.

    * coffread.c (read_coff_symtab): Check for "LF%" with all the
    other L*% things.

    * coffread.c (SDB_TYPE): New macro.
    various: Use it instead of checking against T_NULL.

    * Makefile.dist (cplus-dem.o): Hack in an #include "param.h"
    before we compile it.
    defs.h: Protect against multiple inclusion.
    param.h: Include defs.h.
    signame.c: Change #ifdef SYS_SIGLIST_MISSING to #if.
    param-no-tm.h: Define SYS_SIGLIST_MISSING from USG.

Thu Apr 18 19:49:10 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * i386-pinsn.c (OP_E): Change %d to 0x%x for consistency.

    * putenv.c: New file
    Makefile.dist: Add it to $(OBS).

    * mipsread.c [!CMUCS]: #include <syms.h>.

    * mips-xdep.c (fetch_core_registers): #if 0 out the whole function.

    * Move read_memory_nobpt from mem-break.c to breakpoint.c.

Mon Apr 15 21:45:35 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * utils.c (_initialize_utils): Rename "set demangle" to
    "set print demangle", "set asm-demangle" to "set print
    asm-demangle" and "set sevenbit-strings" to "set print
    sevenbit-strings".

    * main.c (initialize_main): Rename "set history write" to
    "set history save".

    * main.c (initialize_main): Rename "set caution" to
    "set confirm".

    * values.c (_initialize_values): Remove "info history" alias
    for (what is now) "show values".

    * infcmd.c, gdbcmd.h: Add unsetlist.
    infcmd.c: Add unset_command.
    (_initialize_infcmd): Add "unset" and use it for "unset env".

    * breakpoint.c (_initialize_breakpoint): Remove "unset".

    * valprint.c: Add "set/show print", {set,show}_print.
    Rename "set addressprint" to "set print address".
    Rename "set arrayprint" to "set print array".
    Rename "set array-max" to "set print elements".
    Rename "set prettyprint" to "set print pretty".
    Rename "set unionprint" to "set print union".
    Rename "set vtblprint" to "set print vtbl".

    * main.c: Rename version_info to show_version.
    (_initialize_main): Rename "info version" to "show version".

    * values.c: Rename value_history_info to show_values.
    (_initialize_values): Rename "info values" to "show values".

Sun Apr 14 23:08:34 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * inftarg.c (child_open), remote-vx{,.68}.c (vx_proc_open):
    New function to give correct error message.

Thu Apr 11 17:19:41 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * target.h: Add to_doc and target_preopen.
    target.c: Add target_preopen and target_command.
    Remove target_info.
    (add_target): Call add_cmd and mess with targetlist->doc.
    core.c, exec.c, remote-eb.c, remote-nindy.c, remote-vx.c,
    remote-vx.68.c, inftarg.c, remote.c: Add doc field to target struct.
    Call target_preopen from open routine.

    * main.c: Rename editing_info to show_commands.
    (_initialize_main): Rename "info editing" to "show commands".

    * source.c: Rename directories_info to show_directories.
    (_initialize_values): Rename "info directories" to "show directories".

    * values.c: Rename convenience_info to show_convenience.
    (_initialize_values): Rename "info convenience" to "show convenience".

    * copying.awk (_initialize_copying): Rename "info copying" to
    "show copying" and "info warranty" to "show warranty".
    Rename {copying,warranty}_info to show_{copying,warranty}.

    * symfile.c: Rename add_syms_command to add_symbol_file_command.
    (_initialize_symfile, add_syms_addr_command):
    Rename add-syms to add-symbol-file.

Thu Apr 18 18:08:30 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * symfile.h (free_named_symtabs):  Rename from free_named_symtab.
    * symfile.c (clear_symtab_users_once, cashier_psymtab,
    free_named_symtabs):  Move these routines from symmisc.c.
    * symmisc.c (same):  same.
    (free_symtab):  Make non-static.
    * symtab.h (free_symtab):  Declare as exported void fn now.
    * dbxread.c (end_symtab, end_psymtab):  Change comments.
    (initialize_dbxread):  Call dbx_new_init() in case the first
    command is add-symbols.
    * target.c (dummy_target):  Permit add_syms_addr_command.

Sat Apr 13 14:46:07 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Permit symbols to be superseded when new symbol files have
    been read in, particularly for VxWorks.

    * dbxread.c (read_dbx_symtab): Allow N_SOL to cleanly take us back
    to the main file, as well as to include files.  Also, put global
    functions into the global psymtab, to make "i fun" work.
    (end_psymtab):  Free named symtabs and psymtabs for a file, once a
    new psymtab for it has been read.
    * coffread.c (end_psymtab):  Free named symtabs and psymtabs for
    a file, once a new symtab has been read for it.
    * mipsread.c:  FIXME.  We need to do the same for MIPS, but it
    looks harder to determine the top-level block before it's been
    queued to the psymtab list.

    * symfile.c (symbol_file_add):  Use filtered printing and wrap it.
    If we have wiped out any old symbol tables, clean up at end of
    symbol reading.
    (symbol_file_command):  Don't reference symfile_fns if it's zero.

    * symtab.h (GLOBAL_BLOCK, STATIC_BLOCK, FIRST_LOCAL_BLOCK):  New
    defines for the blocks of a blockvector that contain global and
    file-static symbols and the first of the smaller scope contours.
    * symtab.c (lookup_symbol, find_pc_symtab, find_pc_line,
    decode_line_1, make_symbol_completion_list):  Use the above.
    * coffread.c (end_symtab, patch_opaque_types):  Ditto.
    * dbxread.c (end_symtab):  Ditto.
    * expread.y (block):  Ditto.
    * mipsread.c (throughout):  Ditto.
    * symmisc.c (free_named_symtabs):  Ditto.

    * symtab.c (list_symbols):  Process the first symbol of the
    static psymbols list.
    (types_info):  Restore this function from its untimely #if 0.
    It's not perfect, but it is better than nothing.
    (_initialize_symtab):  Restore "info types".

Thu Apr 11 05:23:19 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * m68k-stub.c:  Remote stub for 680x0's, created from
    rem-m68k.shar (which is removed).
    * nindy-share/{Makefile,Onindy.c,blout.h,env.h,nindy.c,ttyflush.c}:
    Remove RCS log stuff now that we use CVS and it blows our diffs.

Wed Apr 10 14:18:06 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * symmisc.c (free_named_symtab):  Make it work, in its current
    kludgy fashion.  Change result to indicate if we blew away bkpts.
    * dbxread.c (end_symtab):  Accumulate result from
    free_named_symtab and print warning if we blew user's state.
    * symfile.h:  free_named_symtab now returns an int.

Mon Apr  8 23:57:43 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * dbxread.c (dbx_symfile_read):  Initialize psymbol list if this
    is the first symbol read, even if not mainline.
    (dbx_psymtab_to_symtab):  symfile might be zero, cope.
    * exec.c (exec_ops):  Add_syms_addr is valid in our tvec.
    (set_section_command):  New command ("section xxx yyy" -- should
    be renamed to "set section xxx yyy" FIXME) which sets the
    base address of a section of the exec file, overriding the
    virtual address that BFD reports.

Fri Apr  5 17:14:39 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * exec.c:  Add add_syms_addr_command to exec_ops, so you can
    load symbols at any address while examining an exec file.

Thu Apr  4 10:09:35 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * tm-i386v.h (FLOAT_INFO):  Don't define it, since the code
    for printing the float info is host-dependent, not
    target-dependent.  FIXME.
    * i386-pinsn.c:  Move #includes to top, remove useless ones.
    * i386-tdep.c:  Don't bother including <.../reg.h> since we
    don't use it (and it doesn't exist on host systems).

    * ieee-float.c (ieee_extended_to_double):  Convert NaN to Inf.
    Convert negative numbers properly.
    (ieee_test):  Make numbers really random; fix format arg.

    * infcmd.c (attach_command, detach_command):  Don't repeat on CR.
    * core.c (core_detach):  Unpush core_ops, which might not be on
    top.  We used to just pop the top, which broke things.  Don't
    need dont_repeat() any more.
    (core_file_command):  Psst!  Don't repeat it.
    * remote-nindy.c (nindy_detach):  Don't need dont_repeat() now.
    * expprint.c (print_subexp):  Avoid switch fallthru on
    BINOP_ASSIGN_MODIFY, so we can print += and such.
    * frame.h:  Fix typo.
    * inflow.c (kill_command):  After killing inferior, print our
    current frame in the core file, if we have one.
    (generic_mourn_inferior):  When inferior dies, either select
    the current frame (in the new target, e.g. core file), or
    set both the current and selected frames to NULL.

    Changes from Peter Schauer.

    * infptrace.c:  Avoid <sys/ptrace.h> on USG.

    * Make all file names fit in 14 characters (sigh and damn!):
    mv hp300hpux-xdep.c hp300ux-xdep.c
    mv symmetry-xdep.c symm-xdep.c
    mv symmetry-tdep.c symm-tdep.c
    mv convex-opcode.h convx-opcode.h
    mv tm-vxworks960.h tm-vx960.h
    mv tm-vxworks68.h tm-vx68.h
    mv Makefile.srcdir Makefile.sdir
    mv gdb-int.texinfo gdbint.texinfo
    mv remote-sa.m68k.shar rem-m68k.shar
    mv remote-multi.shar rem-multi.shar
    * Makefile.dist, README, config.gdb, convex-pinsn.c,
    tconfig/symmetry, tconfig/vxworks960, tconfig/vxworks68,
    xconfig/hp300hpux, xconfig/symmetry:  Change names to shorter
    names.

    * command.c (user_info_1, user_info):  New command for listing
    the user-defined commands.

Wed Apr  3 15:00:26 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * dbxread.c (really_free_pendings):  Clear file_symbols
    and global_symbols after freeing them; otherwise, running
    this function twice (if it appears twice on the cleanup
    chain), we try to free things twice.

    * dbxread.c (read_dbx_symtab):  Calculate end_of_text_addr
    based on text_addr (the address of text in core), not on addr (the
    offset between text in the .o file and in core).  This change
    is from Peter Schauer.

    * main.c:  Define ALL_CLEANUPS as a cast of zero.
    (return_to_top_level):  Use it.
    (main):  Do all cleanups after each command run as part
    of the gdb startup sequence.  Also do all cleanups before
    entering the command loop, and every time we exit the command
    loop and reenter.  Before, the cleanups from the startup sequence
    were being left undone until the first error!
    (command_loop):  Rename do_nothing cleanup to command_loop_marker
    so we can see it easily when examining the cleanup chain.
    (init_signals):  Add another do_nothing for signal handling.
    (quit_command):  Only try to kill target if it has execution.
    Problems in the target stack got us into a state where
    inferior_pid was nonzero but none of the targets had execution.
    In this state you couldn't exit gdb.

    * dbxread.c:  Two changes from Peter Schauer.
    (echo_command):  Fflush output after an echo command.
    (show_history):  Pass all args to cmd_show_list.

    * utils.c (init_malloc):  Call mtrace to turn on tracing
    if the environment variable MALLOC_TRACE is set to a file name.
    * mtrace.c:  Add source file which provides a log of every malloc,
    free, and realloc to a trace file.
    * mtrace.awk:  Add source file which analyzes the trace file.
    * Makefile.dist (GNU_MALLOC, MALLOCSRC):  Add mtrace.{c,o,awk}.
    (VERSION):  Roll to 3.94.3.

    * breakpoint.c (breakpoint_1):  Add a space to "i watch" output.
    (check_duplicates):  Don't bother with watchpoints.
    (set_raw_breakpoint):  Comment about danger of this routine.
    (watch_command):  Parse and eval all args before calling
    set_raw_breakpoint.

    * solib.c (find_solib):  Avoid error in referencing memory to
    see if any more shared libraries have been added.  This is
    particularly useful if the target has terminated.  Bug reported
    by Peter Schauer.

    Changes from Peter Schauer <[e-mail]>
    in bringing up 3.94.2 on the Sun-3.

        * Makefile.dist:  Include CFLAGS in rule for cplus-dem.o.
        * breakpoint.c (enable_breakpoint):  Check for valid watchpoint
        expression (in scope) before reenabling watchpoint.
    * signame.c (init_sigs):  Add missing declaration of i, fix
    sys_siglist declaration.
    * source.c (list_command):  Fixed range computation to use
    lines_to_list ().
    * stack.c (backtrace_command):  Do not allow command if target has
    no stack, print informative error message.
    * target.c (target_command):  Do not write into command line
    because this fails if the target command is used in a user defined
    command.  [This change was enhanced by gnu to support any-
    unique-prefix matching on target names.]
    * valops.c (value_struct_elt):  Avoid infinite loop on an
    erroneous attempt to print the member of function (try p main.p).

Mon Apr  1 17:05:45 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * expread.y (name_no_typename):  Avoid reduce/reduce errors
    caused by ambiguity in handling NAME_OR_INT and NAME_OR_UINT.
    Since the GDB parser really doesn't use name_no_typename in a
    name-only context, the parser can't tell the diff between
    names and numbers here.  Avoid allowing a name_no_typename
    to be a NAME_OR_*INT to resolve the conflict.

Sun Mar 31 20:12:07 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Bugfixes from Mark Fox ([e-mail]) (test=testField.c):

    * valprint.c (val_print_fields):  bitfield printing didn't handle
    byte order.  Indirect through a few more fns to cope.

    * values.c (modify_field):  also cope with byte order.

Sat Mar 23 10:02:21 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Cleanup for release 3.94.2:

    * Makefile.dist: Pull REMOTE_OBS.  Fix saber includes for BFD
    include files.  Roll version to 3.94.2.

    * coffread.c (init_stringtab):  Read length into unsigned char
    array before swapping; don't assume 32-bit longs.

    * target.c (target_info): Don't bother with get_sym_file, just use
    the symfile global variable.
    * symtab.h, symfile.c (get_sym_file):  Delete it.

    * dbxread.c (dbx_symfile_init):  Don't depend on long == 4 bytes.
    (define_symbol):  Set symbol line number to 0 if not gcc-compiled.
    (read_type):  Replace one more error() with complain().

    * mipsread.c (parse_partial_symbols):  Replace printf with complain.

    * i960-tdep.c:  Fix copyright attribution.

    * config.gdb:  Quote all backquotes in doublequotes.  You can
    quote me on that.  BSD 4.4 shell found this one.

    * infptrace.c (throughout):  The third argument to ptrace is an
    int *, not an int.

    * infrun.c (wait_for_inferior):  When program has terminated, we
    have to call target_terminal_ours before we pop that target off
    the stack (e.g. before a call to target_kill or
    target_mourn_inferior).  This fixes problem where a program
    terminates, then GDB stops for (tty output) and you have to type
    "fg" to the shell to resume it.  FIXME:  This code for what to
    do after termination really should be in normal_stop instead.

    * gdbcore.h (read_memory_check):  Change declaration; it changed
    names months ago.

    * terminal.h:  Include <sgtty.h> before <sys/ioctl.h>, since in BSD
    4.4 prereleases, this avoids a bug in their sgtty compatability
    support.
    * remote.c:  Use terminal.h rather than hand-rolling the same.

    * signame.c, signame.h (psignal):  Arg is unsigned, not int.
    * utils.c (strsave, strstr):  Fix arg types.
    * valprint.c (val_print):  lint

    MIPS symbol table support from Per Bothner:

    * symfile.c (symtab_fns):  Remove initializer table that needs to
    be hacked for each new symbol file format supported.
    (add_symtab_fns):  New function, chains symbol table
    handlers into the global list.
    (symfile_init):  Search this list.
    * symfile.h:  Add next pointer, declare add_symtab_fns.
    * coffread.c (_initialize_coffread): Call add_symtab_fns.
    * dbxread.c (_initialize_dbxread):  Call add_symtab_fns.

    * mipsread.c (psymtab_to_symtab_1): return void instead of (struct
    symbol *).  Thus, we no longer need the hack to trash
    pst->filename.  Good, since that hack confused code in symfile.c!

    (reorder_symtabs, destroy_all_symtabs):  Removed static
    all_symtabs, which was used to qsort symtabs in reorder_symtabs.
    Instead, the latter now uses a temporary array (stack-allocated
    from an obstack, and then freed).

    (parse_symbol):  Added a hack to fix up BLOCK_{START,END} if they
    haven't been set in the outermost stBlock of a procedure. This was
    a problem with f77 binaries on Ultrix 4.?.

    (new_symtab, new_symbol, new_type):  Continue changing code to use
    obstacks more and otherwise conform to dbxread internal style.
    Made the free_code of symtabs be free_linetable (as in dbxread)
    instead of free_contents.  This implies memory leaks when reading
    a new symbol table, until the conversion is finished. Did change
    (struct symbol) and (struct type) to be allocated on the
    symbol_obstack.  Blocks and blockvectors are among the things
    still "leaking."

    * mipsread.c (parse_partial_symbols, parse_fdr):  It hasn't been
    tested much, but it solved one problem (reported by Meissner), and
    cleans up some other things.  The problem happened when an
    included file contains actual code (functions) and not just
    definitions. The mips coff is a little inconvenient there, since
    it may cause a procedure to be mapped to the wrong psymtab.

    * mips-tdep.c (heuristic_proc_desc):  Minor cleanup.
    * mips-xdep.c (fetch_core_registers):  Minor cleanup.  FIXME,
    this will need work for the new core paradigm.

    Opcode patches from the net:

    * mips-opcode.h: fix incorrect disassembly of the mfc1, cfc1, and
    ctc1 instructions. Also, the cvt.d.w and cvt.s.w instructions were
    missing altogether - they are added here.  From Bruce Bauman.
    * mips-opcode.h:  The low mask for C0 instructions was too small.
    From Garrett Lau.  I modified the fix to check the entire 32-bit
    opcode.

    * ns32k-opcode.h:  Fix opcodes for deiw and deid.  From Bruce
    Bauman.

Thu Mar 21 12:56:46 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Roll in changes from Per Bothner (Tue, 25 Sep 90 11:11:04):

    * dbxread.c (read_type): Pointer subtraction (value_sub in
    valarith.c) sometimes failed because the types of the
     pointers being subtracted were not identical.
    These differed because dbxread.c was allocating pointer types
    using dbx_alloc_type+smash_to_pointer_type instead of
    lookup_pointer_type. I failed to find a justification for the
    former, so I changed it to use the latter. Similarly, I
    replaced smash_to_function_type by lookup_function_type,
    and smash_to_reference_type by lookup_reference_type.

    * mipsread.c (parse_symbol, upgrade_type, parse_procedure,
    _initialize_mipsread):  corresponding changes.

    * symtab.c (smash_to_{pointer,reference,function}_type): eliminate.

    * source.c (mod_path): Do tilde_expand on each component of the path,
    rather than on the (list of) paths as a whole.
    (print_source_lines):  Set first_line_listed in addition to
    current_source_symtab and current_source_line.  If the source was
    not findable, after a "dir" command to fix the problem,
    a "list" would get the wrong lines.

    While I was there... (gnu):

    * dbxread.c (read_type):  Change error to complaint.

Thu Mar 21 12:56:46 1991  John Gilmore  (gnu at cygint.cygnus.com)

    First attempt at detailed understanding of symbol table memory alloc.

    * dbxread.c (dbx_symfile_read):  Free our string table if we
    aren't the mainline.  Free the "info" struct since we're done with
    it.
    (init_psymbol_list):  Free any previously allocated psymbol lists.
    (): FIXME: Should realloc-down the psymbol lists when done reading
    the main symbol file?

    * symmisc.c (free_symtab):  Free fullname field too.

    * xm-hp300hpux.h (USG):  #undef then #define so Makefile can -D.
    (REGISTER_ADDR):  Make result type unsigned int.

    * xconfig/{i386*,hp300hpux,altosgas,altos}:  All config files that
    define REGEX must also define REGEX1 (its dependency).

Tue Mar 19 21:28:57 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * tconfig/i960:  No longer works, points you at vxworks960 or
    nindy960.

    * xgdb.c, XGDB-README:  Remove file.  Users can get the much
    better xxgdb.
    * Makefile.dist:  Remove all trace of xgdb.

    * breakpoint.c (breakpoint_1):  Pass demangle arg to
    print_address_symbolic.
    (clear_breakpoints):  Remove unused function.
    (breakpoint_re_set_one):  Guts of breakpoint_re_set.
    (breakpoint_re_set):  Use catch_errors to do them all anyway.

    * gdb-int.texinfo (Host versus Target):  Add section on what is
    a "host" feature versus what is a "target" feature.

    * infcmd.c (path_command, path_info):  Handle the PATH variable
    (object search path) as conveniently as the source search path.
    * environ.c (set_in_environ):  Set some vars in GDB's environment,
    in addition to the child's.  PATH, G960BASE, G960BIN for starters.
    * source.c (mod_path):  New function, from guts of
    directory_command, modifies a path.  Used by path_command.
    (directory_command):  Call it.
    * defs.h (strsave):  Declare.

    * utils.c (sevenbit_strings):  Add new printing option.
    (printchar):  Use it.
    (strsave):  Provide this handy helper routine.
    (set_width_command):  Rename set_screen_width_command.
    (_initialize_utils):  "set screen-width" => "set width";
    "set screen-height" => "set height"; add sevenbit-strings.

    * infcmd.c (do_registers_info):  Print floating point registers
    in raw hex as well as float format, regardless of whether it is
    a "virtual" convertible register.
    * tm-sparc.h (PRINT_REGISTER_HOOK):  Print every pair of float
    regs as a double, just in case it's being used that way.
    * values.c (unpack_long):  Comment on array/function coercion.
    (unpack_double):  Argument is in target byte order now.  For
    integer arguments, just call unpack_long and float the result.
    * m68k-tdep.c: include defs.h for "const" handling.
    * remote-nindy.c:  Use ieee-float stuff.
    (nindy_fetch_registers):  Unpack double regs to host double, then
    to extended.
    (nindy_store_registers):  Pack extendeds to host double, flip
    around by misusing unpack_double, send as target double.

    * tm-vxworks68.h (FRAME_CHAIN):  Handle current frame pointer of
    zero, as when stopped at the first instruction of a process.

    * blockframe.c:  Fix filename in comment (param.h => tm.h).
    * sparc-tdep.c (skip_prologue):  More explicit nudging comments.
    * tm-68k.h:  Fix typos.

Fri Mar 15 01:09:34 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Changes from a bringup on the DEC Vax under Ultrix 4.0.

    * coredep.c (fetch_core_registers):  Pass end-address of register
    section to register_addr as expected.  Don't call supply_register
    if we'd just pass it garbage.

    * dbxread.c (read_dbx_symtab):  Skip N_NSYMS on Ultrix.

    * exec.c (xfer_memory):  Use boolean xfer_fn result, not int.

    * target.c (push_target, target_info):  Cast enums to int for < or
    > comparison.

    * stack.c (print_frame_info):  Identify source file & line
    even if we can't print it.

    * xm-vax.h (MISSING_VPRINTF):  No longer missing in Ultrix V4.0.

Sat Mar  9 10:08:20 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Clean up IEEE floating point support.

    * ieee-float.h:  New file.
    * ieee-float.c:  Write real routines to convert between host
    doubles and various target IEEE extendeds.
    * m68k-xdep.c:  Eliminate assembler code for extended floats.
    * xconfig/{3b1,altos,altosgas,hp300bsd,isi,news,news1000,sun2os3,
    sun2os4,sun3,sun3os3,sun3os4}:  Eliminate use of m68k-xdep.o.
    * tm-i960.h, tm-68k.h (REGISTER_CONVERT_TO_VIRTUAL,
    REGISTER_CONVERT_TO_RAW):  Use ieee_extended_to_double and
    double_to_ieee_extended.
    * i960-tdep.c:  Define ext_format_i960.
    * m68k-tdep.c:  Define ext_format_68881.
    * sparc-tdep.c:  Define ext_format_sparc, though unused.
    * Makefile.dist (HFILES):  Add ieee-float.h.
    * inftarg.c: #include "ieee-float.h" for the REGISTER_CONVERT
    macros.

    Obsolete the "coffstrip" program in favor of using BFD's strip.

    * nindy-share/coffstrip.c:  Remove file.
    * nindy-share/nindy.c (coffstrip):  Routine to run bfd_strip.
    * Makefile.dist:  Remove references to nindy-share/coffstrip.c.
    * tconfig/nindy960:  Remove reference to coffstrip.o.

    * Makefile.dist:  Roll version number to 3.94.1 (not yet final).

Wed Mar  6 09:56:45 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * symfile.h:  Add symfile_bfd, common between dbxread and coffread.
    * dbxread.c:  Remove static symfile_bfd.
    * infcmd.c (do_registers_info):  Add PRINT_REGISTER_HOOK, though
    it is not used yet.
    * inftarg.c (child_detach):  Pop the child_ops vector if the
    detach is successful.
    * remote-nindy.c (nindy_create_inferior):  Don't push a new
    nindy_ops since nindy uses the same one for execution and memory
    examination anyway.
    * core.c (core_ops):  Use child_attach and child_create_inferior
    rather than default attach and create_inferior functions.

    Handle floating point registers in core files.

    * sparc-xdep.c (fetch_core_registers):  Rewrite for float support.
    * sun3-xdep.c (fetch_core_registers):  Rewrite for float support.
    This version untested since BFD doesn't yet support sun3 core
    files.
    * hp300hpux-xdep.c:  Rewrite fetch_core_registers to new calling
    conventions.  Fix comments and style.  This version has not
    been compiled yet, since we have no HP inhouse.
    * core.c (get_core_registers):  Look for two sections, ".reg"
    and ".reg2", and pass both to fetch_core_registers sequentially.

    Revise directory path yet again.

    * source.c (forget_cached_source_info):  Not static any more.
    (init_source_path):  New default source path is "$cdir:$cwd".
    (dir_command):  Handle variable arguments ($cdir, $cwd).
    (source_info):  Print "Compilation directory" rather than
    "Originally compiled in" to remind people of $cdir.
    (openp):  If the path contains $cwd, use current directory.
    (open_source_file):  If compilation directory is known, replace
    first $cdir in path with the compilation directory.
    (print_source_lines):  Even if we can't print the lines, set the
    current symtab and line for future commands like "info source" or
    "breakpoint".  Also, error message now contains the file name,
    line number, and file access error message.
    (_initialize_source):  Fix help text to describe changes.
    * main.c (cd_command):  Forget cached source info when we chdir.
    * utils.c (strstr):  Add simple implementation.

Tue Mar  5 01:41:40 1991  John Gilmore  (gnu at fowanton.cygnus.com)

    * coffread.c (read_one_sym, init_linetable, init_stringtab):
    Byte-swap COFF symbol tables if necessary when reading them in.
    Use complain() to replace error message in one spot.  Needs
    corresponding change in bfd/coff-code.h to make some symbol
    swapping routines non-static.

Mon Mar  4 00:53:40 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Merge changes from Eirik Fuller, for UTek.

    * defs.h (errno):  Add declaration.
    * altos-xdep.c, arm-xdep.c, convex-xdep.c, gould-xdep.c,
    hp300hpux-xdep.c, infrun.c, inflow.c, infptrace.c, i386-tdep.c,
    i386-xdep.c, pyr-xdep.c, mips-xdep.c, remote-eb.c, remote-nindy.c,
    remote-vx.c, source.c, standalone.c, stuff.c, sun386-xdep.c,
    symmetry-tdep.c, symmetry-xdep.c, umax-xdep.c, utils.c:  Eliminate
    declarations of errno.

    * remote-eb.c:  Define B19200 and B38400 as EXTA and EXTB.

    * remote-vx.c:  Include <sys/time.h> for UTek; Sun gets it via
    <rpc/rpc.h> and <rpc/types.h>.

Sat Mar  2 15:47:55 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * i960-tdep.c (examine_prologue):  Add new argument limit,
    which stops the scan at the end of the prologue, or at the PC.
    This fixes a problem where it walks down into the code for the
    user's statements if that code looks like function prologues.
    Mark Fox and I have been bouncing this code back and forth, making
    small changes to it.  Callers changed to match.

Tue Feb 26 01:47:07 1991  Cygnus John Gilmore  (cygnus at yuba)

    Cleanup for gdb-3.94 release final:

    * Makefile.dist:  Remove remote-vx.c, remote-nindy.c, and all
    the .c files from vx-share and nindy-share, from the various
    macros, since they are not found via ALLDEPFILES.
    (SFILES):  Add tm-i960.h.
    (alldeps.mak rule):  Break out ALLDEPFILES_MAINDIR and
    ALLDEPFILES_SUBDIR.  List all the nindy and vxworks subdir files
    in the SUBDIR list.
    (TAGFILES_MAINDIR):  Change ALLDEPFILES to ALLDEPFILES_MAINDIR.
    (gdb.tar.Z):  Use ALLDEPFILES_SUBDIR as well as SFILES_SUBDIR.

Mon Feb 25 16:02:35 1991  Cygnus John Gilmore  (cygnus at oldman)

    * am29k-tdep.c:  Add contribution line.
    (examine_prologue):  Cache information about function prologues in
    the misc-function-vector to avoid lots of references over the
    serial line while examining instructions.

    * core.c (core_close):  New function made from cleanup_core.

    * core.c, exec.c, inftarg.c, remote-eb.c, remote-nindy.c,
    remote-vx.c, remote.c, target.c, target.h,
    Update target_ops vector to add attach, close, and load entries.
    Use add_syms_addr_command, not add_file_addr_command, for
    add_file.  Break out close routine from existing code.

    * dbxread.c (really_free_pendings):  Don't free pending_blocks;
    they are in an obstack.
    (read_dbx_symtab):  Relocate end_of_text_addr in the psymtab.
    Lint.
    (define_symbol):  Add symbol type parameter; change callers;
    pass type parameter to DBX_PARM_SYMBOL_CLASS macro to allow
    it to influence the symbol class on the i960.
    (define_symbol):  Swap LOC_CONST's into target byte order.

    * exec.c (exec_close):  New function.
    (exec_file_command):  Call it.

    * findvar.c (read_relative_register_raw_bytes):  Doc byte order,
    Fix byte order of frame pointer.
    (read_var_value):  Result of 0 if var's value can't be found,
    e.g. missing FRAME_ARGS_ADDRESS.  Byte-swap LOC_CONST and
    LOC_LABEL values to target order.  Add LOC_LOCAL_ARG.
    (locate_var_value):  Use read_var_value and use its lazy address
    as the location of the var's value.  Lint.

    * i960-pinsn.c (next_insn):  Add routine from vxgdb for scanning
    instructions.

    * i960-tdep.c (arg_address, i960_frame_find_saved_regs):  Remove
    obsolete Intel versions in favor of vxgdb versions.
    (check_host, byteswap, byteswap_val, reorder_val):  Eliminate
    code dealing with byte order of values, which Intel did in host byte
    order rather than gdb-4's target byte order.
    (i960_frame_chain_valid):  Move to nindy-tdep.c.
    (examine_prologue, skip_prologue, frame_find_saved_regs,
    frame_args_address, leafproc_return, saved_pc_after_call,
    pop_frame):  Add vxgdb versions from Mark Fox.
    (examine_prologue, frame_struct_result_address):  Add code
    to deal with the saved value of G13 (struct return address
    pointer).
    (frame_args_address):  Modify Mark's version to prefer the
    saved value over the current value in the topmost frame.
    Cache result in the frame info to avoid performance hair in
    callers.
    (print_fault):  Add gdb960 code for printing faults.
    (_initialize_i960):  Actually call check_host.

    * ieee-float.c (ieee_extended_to_double, ieee_double_to_extended):
    add stub routines.  FIXME, these currently just return zero!

    * infcmd.c (program_info):  Use PRINT_RANDOM_SIGNAL.
    (attach_command):  Call target_attach, not target_open, now.

    * infrun.c (normal_stop):  Make global, not static, for vx_attach.
    (child_attach):  Rename from child_open.
    (wait_for_inferior): Use PRINT_RANDOM_SIGNAL.  If stop_pc is zero,
    don't confuse it with a zero step_resume_break_address.

    * inftarg.c (child_detach):  Eliminate inferior_pid test.
    (child_files_info):  Clean up message a bit.
    (child_ops):  Use child_attach, not child_open, to attach.

    * mem-break.c:  #ifdef out the whole file if BREAKPOINT is not
    set (e.g. on VxWorks or NINDY).  Move read_memory_nobpt from
    findvar.c to here, since it depends on the contents of the
    shadow_contents of breakpoints, but keep if #if 0 since it is
    never called.

    * nindy-tdep.c:  New file, contains nindy_frame_chain_valid, moved
    from i960-tdep.c.

    * printcmd.c (address_info):  Handle LOC_LOCAL_ARG.  Lint.
    (ptype_command, display_command):  Eliminate have_inferior_p and
    have_core_file_p in favor of target_has_stack or
    target_has_execution.
    (print_frame_args):  Handle LOC_LOCAL_ARG.  Eliminate duplicate
    code for actually finding the values of arguments, though we still
    keep track of the maximum stack offset for use in printing unnamed
    arguments.  Handle missing FRAME_ARGS_ADDRESS.

    * remote-nindy.c (i960_print_fault):  Move to i960-tdep.c.
    (struct nindy_regs):  Define registers passed to/from nindy.
    (nindy_fetch_registers, nindy_store-registers):  Translate between
    nindy and GDB formats for the registers.
    (dcache_init):  Statically allocate the cache, since it was being
    allocated by a malloc that was never freed anyway.
    (nindy_create_inferior):  Error, not core dump, if no exec file.
    (nindy_before_main_loop):  Use target_load, not target_add_file.

    * remote-vx.c (net_load):  Specify large timeout for load
    requests.  Allow user to break out with INTERRUPT.
    (net_break):  Remove useless code, clean up.  Change callers.
    (parse-args, skip_white_space, find_white_space):  Clean up arg
    parsing to cope with quoted strings.
    (net_wait, net_quit):  Never call error, just return status.
    (vx_read_register, vx_write_register):  Cleanup status checking.
    #ifdef the code based on which CPU we are using (960 or 68k),
    FIXME, this should be completely general but it isn't yet.
    (vx_xfer_memory, vx_resume):  Cleanup status checking.
    (vx_run_files_info):  Improve message.
    (vx_load_command):  Renamed from vx_add_file_command.  Allow load
    to be interrupted.
    (net_ptrace):  Remove unused routine.
    (vx_wait):  Adopt code from vxgdb960 to cope with broken
    connections to target machine and prompt to disconnect.  Remove
    debug printouts.  Map some EVENT_'s to SIGnals.
    (add_symbol_stub, vx_open):  Print names of object files we found,
    and "ok" if we read their symbols OK.  Clarify output in general.
    (vx_attach, vx_detach, vx_kill):  Add these commands.
    (vx_convert_from_virtual, vx_convert_to_virtual):  Simplify.
    (vx_run_ops):  Turn off all_mem, to avoid spurious msg in the
    "info files" output, and create_inferior, since we already have
    an inferior.

    * stack.c (frame_info):  Replace Frame_unknown with 0.
    (print_frame_arg_vars):  Handle LOC_LOCAL_ARG.
    (return_command):  Pop until the PC matches as well as the FP,
    so it works even if the FP is shared with another function,
    as in "frameless" or "leaf" procedures.

    * symfile.c (load_command):  renamed from add_file_target_command.
    (add_syms_addr_command):  renamed from add_file_addr_command.
    (add_syms_command):  Stub to call target_add_syms.
    (_initialize_symfile):  Change command names and descriptions,
    add-file => add-syms, and load from alias to its own command.

    * target.c (kill_or_be_killed, maybe_kill_then_attach,
    maybe_kill_then_create_inferior):  Default for attempts to start
    a process, if one is already running, is to ask about killing
    it and retry if yes.
    (upstack_create_inferior):  #if-0 it, strata obsolete it.
    (push_target, unpush_target, pop_target):  to_close() a target
    before unstacking it.
    (target_info):  Renamed from target_files_info.
    (_initialize_targets):  Rename "i files" as "i target", accessible
    under both names.

    * target.h:  Improve comments about the target_ vectored routines.

    * tm-i960.h:  Remove NINDY-specific stuff to tm-nindy960.h.
    Convert commenting style to standard GNU style.
    (DBX_PARM_SYMBOL_CLASS): allow LOC_LOCAL_ARG's to be recognized.
    (SKIP_PROLOGUE):  No longer a no-op.
    (SAVED_PC_AFTER_CALL):  Now handles leaf procedures.
    (*_REGNUM):  Sort register numbers.
    (REGISTER_BYTES, REGISTER_BYTE, REGISTER_RAW_SIZE,
    MAX_REGISTER_RAW_SIZE, REGISTER_CONVERTIBLE,
    REGISTER_CONVERT_TO_VIRTUAL, REGISTER_CONVERT_TO_RAW):  Float regs
    are now 10 byte extendeds, not 8 byte doubles.
    (FRAME_CHAIN_VALID):  Make this config-dependent, since it differs
    for nindy versus vxworks targets.  FIXME, this should possibly go
    in the target vector.
    (EXTRA_FRAME_INFO, INIT_EXTRA_FRAME_INFO):  Cache both
    frame_saved_regs and arg pointer with each frame.
    (FRAMELESS_FUNCTION_INVOCATION):  New leafproc support.
    (FRAME_ARGS_ADDRESS):  Use cached result.
    (FRAME_ARGS_ADDRESS_CORRECT):  New, avoids g14 guessing.
    (FRAME_FIND_SAVED_REGS):  Change arg to subsidiary fn.
    (PRINT_RAMDON_SIGNAL):  Call print_fault.
    (POP_FRAME):  Now works.

    * tm-nindy960.h:  Break this off tm-i960.h.  NINDY-specific
    option parsing and startup; STACK_END_ADDR, FRAME_CHAIN_VALID,
    BREAKPOINT, and DECR_PC_AFTER_BREAK are here.
    (ADDITIONAL_OPTION_HANDLER):  use target_load, not
    target_add_file.

    * tm-vxworks960.h:  Break this off tm-i960.h.  VxGDB specific
    startup; DECR_PC_AFTER_BREAK, and FRAME_CHAIN_VALID are here.

    * valarith.c (value_subscripted_rvalue):  Avoid handling
    floats and doubles specially; it gave alignment errors.  Lint.

    * valops.c (value_of_variable, value_of_this):  Error if unknown
    value.

    * valprint.c (print_floating):  Bcopy rather than pointer-deref,
    to avoid alignment problems.
    (value_print):  Handle unknown value address.
    (cplus_val_print):  Two args are ignored; remove them.  Change caller.
    (val_print):  Use unpack_long rather than pointer-deref.

    * values.c:  Lint.
    (unpack_long, unpack_double):  Use bcopy rather than pointer-deref
    to avoid alignment problems.
    (value_being_returned):  Error if return value unknown.
    (set_return_value):  Add bogosity warning, FIXME.        *

    * TODO:  A woman's work is never done.

    * Makefile.dist:  Distribute REMOTE_OBS into tconfig files.
    Separate INCLUDE_CFLAGS for use with lint.  Add LINTFILES.
    Add ieee-float.o to OBS.
    * tconfig/{nindy960,vxworks68,vxworks960}:  Include the desired
    REMOTE_OBS remote-interface files in the TDEPFILES and TM_FILE.
    * tconfig/i960:  FIXME.  Half-merge, produce warning if config'd.

    Changes to generalize the VxWorks RPC protocol slightly, to handle
    i960 as well as 68000.

    * vx-share/dbgRpcLib.h (VX_SOURCE_STEP):  Add.
    * vx-share/reg.h:  Produce i960 regs #ifdef I80960
    * vx-share/xdr_ptrace.c:  Skip FPA registers if 960.
    * vx-share/xdr_rdb.h:  Add SOURCE_STEP struct and xdr decl.
    * vx-share/xdr_rdb.c:  Add xdr_SOURCE_STEP routine.
    * vx-share/xdr_regs.c:  Add xdr_regs, xdr_fp_status, xdr_ext_fp
    for i960.  Change xdr_vectors to xdr_opaques for 68k registers,
    so they will move in target byte order rather than network
    byte order (happens to be the same).

Mon Feb 25 03:41:44 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * tm-convex.h (END_OF_TEXT_DEFAULT):  Remove #if 0'd block.

Sun Feb 24 00:55:53 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * am29k-pinsn.c,
    Add contribution lines to various files, showing where they
    came from.

    * breakpoint.c (break_insn, check_break_insn_size,
    read_memory_nobpt):  Remove to mem-break.c.

    * xm-*.h, param-no-tm.h, tm-29k.h, valprint.c:  Change BYTE_ORDER to
    HOST_BYTE_ORDER.

    * tm-29k.h (STAB_REG_TO_REGNUM):  Warn user if symbol table
    entry has bad register number.  This change is not
    tested in this release, FIXME.

    * frame.h:  Eliminate Frame_unknown in favor of a simple zero.
    tm-vax.h:  Ditto.

    * value.h:  Force value's contents field to be aligned to hold
    at least a double or a long long (if supported).  This avoids
    doing bcopy's in and out of the contents field.

    (step_1):  Avoid coredump under obscure circumstances when we
    have no frame.

    * symtab.h (misc_info):  Add field to misc function vector for
    any kind of cached information the target code desires.  AMD
    29000 uses this to avoid repeating examine_function_prologue's.

    * coffread.c:  Lint.  Remove static symfile, read_section_header.
    core.c (have_core_file_p):  Lint: remove.
    expprint.c (print_subexp):  Lint.
    infptrace.c, valops.c, valprint.c:  lint.

    Roll in changes from vxgdb-5.0.1:

    * symtab.h:  Comment byte order of each address class.  Add
    LOC_LOCAL_ARG for frame-relative args (960).
    expread.y:  Use LOC_LOCAL_ARG where LOC_ARG is used.
    symtab.c, symmisc.c:  ditto.

    * infrun.c (init_wait_for_inferior):  Clear stop_signal.

    * remote.c (remote_resume):  Error if resume with a signal.

    * symfile.c (prim_record_misc_function):  Clear misc_info.
    (fill_in_vptr_fieldno):  Check stub type of arg.

    * valops.c (value_cast):  Avoid looking up names of types whose
    name we don't know, to prevent coredump.  Sun CC produces typedef
    rtx and the name of *rtx is zero...

Mon Feb 18 21:16:25 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Roll in changes from final AMD 29000 port (Tiemann).

    tconfig/am29k:  Add COFF_ENCAPSULATE and TARGET=TARGET_AM29K
    for ../include/a.out.encap.h.  This might not work now that BFD
    is separately compiled.  Instead, BFD support for encap will have
    to translate machine type 29k into the right COFF_MAGIC.

    * infcmd.c: Remove references to inferior_pid that aren't used
    in actual ptrace calls; use target_has_execution, etc.
    (have_inferior_p):  Remove function.
    (program_info):  Print target info rather than "process number";
    avoid gratuitous messages unless from_tty.
    (run_stack_dummy, finish_command):  Set proceed_to_finish.
    infrun.c: Remove inferior_pid refs.  Decl & init proceed_to_finish.
    main.c:  Lint.  Lose have_inferior_p().
    inferior.h (have_inferior_p):  Remove, lint.
    (proceed_to_finish):  Add flag to ask that all regs be saved
    by normal_stop, for the few commands that need it, speeding up
    serial I/O.  Add comments to stop_registers.

    * remote-eb.c:  Remove newline from breakpoint message we grep
    for.  Never time out when running the user program.



Wed Feb 13 15:34:40 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Roll in changes from vxgdb-5.0.1:

    * dbxread.c (read_dbx_symtab): If we encounter a "FORTRAN COMMON"
    symbol in its raw form, we are processing an unlinked ".o" file.
    See if the target environment has assigned it an address, using
    target_lookup_symbol (VxWorks does), and enter it into the symtab
    that way.

    * tm-vxworks.h (FRAME_CHAIN, FRAME_CHAIN_VALID):  Override usual
    68k versions for a simpler version that assumes zero FP at bottom.
    Fixes bug of truncated stack reports.

    * target.h (target_lookup_symbol):  Define this routine's args
    and result, finally.

    * target.c (nosymbol):  Default routine for target_lookup_symbol.
    (target_default):  Default lookup_symbol and call_function too.
    (files_info):  Only print has_all_memory warning if a non-dummy
    target follows.

    * remote-vx.c (vx_read_register, vx_convert_to_virtual,
    vx_convert_from_virtual): If target does not have floating point,
    zero register "values", and avoid doing cross-net conversions.
    (vx_lookup_symbol):  Rename net_lookup_symbol, add to vectors.
    (vx_open):  Rearrange code that attaches to target and reads
    symbols for all loaded modules, to work if some of the modules
    are not accessible.  Add symbol_stub() and add_symbol_stub()
    as callbacks from catch_errors().  Allow connect attempt to be
    interrupted painlessly with ^C (FIXME, there are still some bugs
    if the interrupt happens during symbol reading.).  Print
    final message with puts_filtered, since symbol messages are
    now filtered too.

    Misc cleanup:

    * main.c (catch_errors):  Only print errstring if non-null.
    (command_loop):  Avoid an ioctl per command to test ISATTY.

    * remote-vx.c (net_load):  make static; avoid sophomoric msg.
    (vx_xfer_memory):  Return correct result!
    (vx_files_info):  Indicate whether target has float or not.
    (vx_lookup_symbol):  Complain, not error, if target gone.
    (vx_open):  Print "Connected" msg before disabling immediate-quit.
    [FIXME:  lookup_symbol and vx_open changes need testing.]

    target.c, remote-eb.c, inftarg.c, am29k-opcode.h, target.h,
    tm-29k.h, tmm-vxworks68.h, symfile.c, gdb-int.texinfo: Add
    contributor lines and update copyrights to 1991.

    Changes from an attempted H-PUX host port:

    * infptrace.c (PT_ATTACH, PT_DETACH):  Handle HP/UX, which
    defines PT_ATTACH and PT_DETACH but not PT_KILL.
    * remote-eb.c (eb_open):  Misplaced endif kills sysv H/PUX.
    * remote-vx.c: include <sys/time.h> for HPUX.
    * hp300hpux-xdep.c (fetch_core_registers):  Rewrite old
    "core_file_command" routine to BFD regime.  May not work yet.

    Attempted port of "gdb-3.4 Van Jacobson xgdb" to modern gdb.

    * xgdb.c: Replace X10 version with some VJ version.
    (FIXME:  Its copyright assignment is not on record.)
    * xgdb.c:  Update include files to X11R4 (Xaw crud).
    (xgdb_display_source, create_text_widget): fix call to
    get_filename_and_charpos.  Rewack source window stuff for X11R4
    (gleaned from include files, and "nm's" of binary libraries, since
    I had no doc available).
    (append_selection, append_selection_word): Disable with FIXME
    since R4 changed interface here.
    (create_buttons):  Add back the old set of buttons.
    (xgdb_create_window):  Fix call to XtInitialize (&argc not argc).

    * Makefile.dist (xgdb, xgdb-init.c):  Update for X11R4 on Suns.
    Roll VERSION to 3.94 (not yet final though).

Sat Feb  9 09:46:25 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * obstack.h (obstack_ptr_grow, obstack_ptr_grow_fast,
    obstack_int_grow, obstack_int_grow_fast):  Eliminate
    cast on left of assignment, which gives MIPS cc fits and is
    not Standard C.

    * sparc-pinsn.c (print_insn): Eliminate 'set' test, subsumed by
    F_ALIAS.  Use printf, not fprintf, when not passing a file
    pointer...
    (compare_opcodes): Check that identical instructions have
    identical opcodes, complain otherwise.

    * sparc-opcode.h (st %fsr):  Fix opcode "lose" mask.  This
    was reported by Roland McGrath.
    (unimp): Only match if exactly zero instruction.  (Roland)
    (branches and traps):  Generate all variations of these
    instructions with macros, based on a single call that defines
    each condition name and its binary representation.
    (set):  Turn on alias bit, to avoid test in sparc-pinsn.c.

    * valprint.c (val_print_fields):  Take, and use, format parameter.
    This means that "p/x struct" again prints the elements in the
    desired format.  Changed callers.

    * stack.c (frame_info):  Use filtered output, and indicate wrap
    points.  Remove kludgy formatting designed to avoid line wrap.

    * utils.c (wrap_here):  If the line is already full (because
    we had printed a long indent or long wrapped string), do an
    immediate newline-and-indent.

    * m68k-pinsn.c (print_insn_arg): Bugfix from
    ntmtv![e-mail] (Mike Thompson): 'bkpt #0'
    instruction is incorrectly disassembled as bkpt #8.

    * dbxread.c (end_psymtab): Bugfix from Peter Schauer
    <[e-mail]>: If you want to set a
    breakpoint in a *.y file gdb will say Reading in symbols for *.y...
    and then will dump core (sometimes). I traced it back to an
    uninitialized symfile_name in psymtab_to_symtab.
    (const_vol_complaint):  Add quotes to message.
    (define_symbol):  Only believe line number if gcc_compiled.
    Avoid allocating symbol if we will not return it.

    Add target strata support so that newly established targets go
    into their right place in the target stack (e.g. a new exec file
    doesn't wipe out the ability to access the running process).

    * target.h, core.c, exec.c, inftarg.c, remote-eb.c,
    remote-nindy.c, remote-vx.c, remote.c, target.c:  Add to_stratum
    and initialize it properly in all the targets.

    * target.h:  Document strata.  Change return type of push_target.

    * target.c (nomemory):  new function for dummy memory access.
    (tcomplain):  Rename complain, now also used in symfile.c.
    (push_target):  Push targets within strata.  New return value shows
    whether new target is on top of stack or not.  Always keep dummy
    target on stack.
    (target_files_info):  Ignore dummy target.

    * core.c (core_open):  Warn user, and skip accessing file, if the
    core target is not the topmost target in the stack.
    * remote-nindy.c (nindy_create_inferior):  Avoid unpush_target, now
    already handled.

    * remote-vx.c:  Remove vx_prepare_to_store from vxworks memory
    target_ops, it doesn't belong there since we have no regs there.
    Change name of target from machine => memory to clarify.

Thu Feb  7 16:32:09 1991  John Gilmore  (gnu at spiff.cygnus.com)

    * Freeze version 3.93 for release.

    * Makefile.dist:  Handle vx-share and nindy-share subdirs
    properly when building gdb.tar.Z.

    * symtab.c:  lint; add no_symtab_msg to consolidate the messages
    printed in various places, so I could change just one copy.

    * dbxread.c, coffread.c:  Change references to bfd->iostream
    to cast to FILE *, now that BFD avoids needing types defined
    in other header files.

Tue Feb  5 21:39:35 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * command.c, dbxread.c, expprint.c, infcmd.c, infptrace.c,
    infrun.c, printcmd.c, remote-nindy.c, source.c, sparc-tdep.c,
    sparc-xdep.c, symfile.h, symmisc.c, utils.c, valprint.c: Lint
    (actually gcc -Wall).

    * dbxread.c:  Remove first_global_sym, last_global_sym, since
    they are never referenced.

    * defs.h (baud_rate):  Declare.
    main.c: Define it, and add the -b option to set it.

    * gdb-int.texinfo:  Add text on how to define a new host or target
    architecture, prompted by Per Bothner's questions about MIPS
    support.

    * gdb.texinfo:  Document "complaints".  Change doc of -q since
    gdb no longer prints the copyright and blurb if you specify a file
    name to be debugged (just like Emacs).  Add doc for Nindy-specific
    command line flags for specifying target serial port and such.
    Update copyright to 1991.

    * gdbcore.h:  Remove a large mass of now-useless crud, since BFD
    has taken over for us the job of ripping up executable files.  The
    crud caused Per Bothner's port to not compile.

    * infrun.c (normal_stop):  Avoid printing "Program exited
    normally" if we are in batch mode.  This allows a GDB which
    executes a program on a target system, to behave like a Unix
    command (input from stdin, output to stdout, no extraneous
    output).

    * main.c (main):  Allow additional machine-dependent command line
    options to be specified with the ADDITIONAL_OPTIONS,
    ADDITIONAL_OPTION_CASES, ADDITIONAL_OPTION_HELP, and
    ADDITIONAL_OPTION_HANDLER macros.  Also allow machine-dependent
    processing to occur just before the main loop with
    BEFORE_MAIN_LOOP_HOOK.
    (main):  If a "core file" argument is specified, and it is not a
    core file, try it as a process ID to attach.
    (symbol_completion_function):  Attempt to cope with
    "show screen-" TAB, not very successfully.  This needs more work,
    FIXME.
    (batch_file):  New function, returns whether we are reading
    commands from an interactive tty on stdin, or from somewhere else.
    Called by normal_stop since it doesn't get from_tty passed down
    to it like many commands do.

    * remote-nindy.c:  Handle command line options for nindy
    connection.
    (nindy_before_main_loop):  Prompt user for tty name if they
    don't specify it before getting to the interactive command loop.

    * tm-i960.c:  Add ADDITIONAL_OPTIONS, etc, to handle -O, -brk,
    and -r command line options.  Also add hook before main loop
    to make it easy to specify a tty.

    * TODO:  More things to do, one done.

Mon Feb  4 23:57:39 1991  John Gilmore and Mike Tiemann  (at cygint.cygnus.com)

    * dbxread.c:  Make complaint() calls pass pointer, not struct.
    Add complaints about badly formatted C++ type information
    (const/volatile indicator, and parse errors resulting in
    error_type).  Fix C++ virtual member fn comment.
    (read_struct_type):  Avoid bumping pointer if we got a parse
    error; this prevents our walking beyond the end of a string.
    Terminate loop on null char as well as semicolon.
    (process_one_symbol):  Fix the LBRAC fix so that it uses the
    last previous SLINE, FUN, or SO record's PC address.  C++ debug
    symbols did not have SLINE records in a useful order compared
    to the LBRAC records.
    (define_symbol):  Handle "catch" records.

    * symtab.c (check_stub_type):  Added new complain
    `stub_noname_complain' and added a consistency check to
    keep the debugger from crashing when finishing from an
    exception frame.  A real fix will be needed later.

Sat Feb  2 10:43:05 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * infcmd.c (attach_command):  Make global.

    * Makefile.dist (REMOTE_OBS):  Make these compile by default,
    but make them easy to comment out.  Perhaps later they should
    be enabled by what CPU you configure for?  FIXME.
    (VERSION):  Roll to 3.93.
    (pinsn.o):  Remove rule for obsolete file.
    (dbxread.o,coffread.o,mipsread.o):  Use ${srcdir} explicitly.

    Run down a problem that manifested by printing the wrong function
    name in stack traces of read_ofile_symtab.  Turned out that the
    problem was the SunOS 4.1.1 (and previous) C compiler outputs
    the LBRAC symbol with an address in the *data* segment, which
    blew our binary search through the blocks.

    * dbxread.c: Use the complain() facility consistently to bitch
    about problems in the symbol file we are reading.
    (finish_block):  Add code to check the nesting of the blocks;
    complain and Procrust them to fit if wrong.
    (make_blockvector):  Check the order of the blocks, complain
    [but don't cope] if wrong.
    (process_one_symbol):  ifndef SUN_FIXED_LBRAC_BUG, check LBRAC
    symbols to be sure their PC value is greater than the last SLINE
    (line number) symbol we've seen, complaining and adopting the
    SLINE PC value if wrong.

    * symfile.h (struct complaint, complaint_root, complain,
    clear_complaints):  Add.
    * symfile.c (complain, complaint_root, clear_complaints):  Add
    facility to deal with non-fatal complaints and to regularize their
    suppression.
    (symbol_file_add):  Clear complaint counters to allow new complaints.
    (initialize_symfile):  Add 'set complaints' and 'show complaints'.

    * dbxread.c (dbx_symfile_read):  Remember the address and size
    of the string table for the main symbol file, so we won't read it
    more than once.
    (dbx_psymtab_to_symtab):  Fix the check for main symbol file,
    to avoid reading the string table yet again.  Lint.
    (throughout):  Improve filtered output, including word wrap.
    (read_range_type):  Improve Bothner's fix to handle other types too.

    * utils.c:  Improve line wrap implementation.  Handle unlimited
    width by making chars_per_line unsigned.
    (puts_filtered):  New, easy, function.

    * defs.h (puts_filtered):  add.

    * mipsread.c (compare_symbols, sort_symtab):  Remove these fns,
    call the identical sort_symtab_syms() in symfile.c instead.

    * expread.y:  Suggest the `file' command rather than `symbol-file'.

    * command.h (enum var_types):  Add zinteger for seroable
    unsigned integer.
    * command.c (do_setshow_command):  Handle var_zinteger.  Restructure
    nested if's into a switch.

    * breakpoint.c (bpstat_print): If bpstat "print" flag is not set,
    we did not stop because of a breakpoint (it must have been for
    some other reason, like a "stepi"), so don't print anything.

    * symtab.c: Include <sys/types.h> all the time.  Now that BFD
    doesn't include <sys/types.h>, old SunOS's require it for
    <sys/stat.h>.

Sat Feb  2 10:39:15 1991  Per Bothner  ([e-mail])

    A test port of gdb-3.92.6 to the Sony NEWS.

    * Makefile.dist
    Don't normally link in remote- or vx stuff.
    Some of it doesn't compile, and it wastes space for 99%    of the users.
    Remove reference to no-longer-used HAVE_VPRINTF.
    Fixed BFD_DEP typo to BFD_DIR.
    * dbxread.c
    Fix cast in arg to bfd_h_getlong.
    Make char *prefix be const.
    Fix how certain range types are mapped into builtin unsigned int types.
    * infrun.c
    Remove 2 #includes. They cause errors (on Sony, at least),
    and aren't needed (they wern't in earlier versions).
    * printcmd.c
    print_address_symbolic should never demangle labels
    (since it prints *assembler-level* labels).

           [This was superseded by the change to printcmd below.]

    * utils.c
    Add some "volatile" return types to avoid warnings.
    If MISSING_VPRINTF add vprintf function and not just macro
    (since vprintf is used in printcmd.c).
    * valprint.c
    Unless __GNUC__, use obstack_grow instead of obstack_ptr_grow.
    (The latter isn't grokked by some PCC-based compilers.)

         [This change is in abeyance, we prefer to fix obstack_ptr_grow.]

    Make chunk size of dont_print_obstack 32*4 instead of default 4096.
    * nindy-share/coffstrip.c
    Added some forward declarations (otherwise, gcc complains
    about implicit extern redefined as static).

Sun Jan 20 02:38:19 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Changes inspired by Per Bothner:
    * printcmd.c (print_address_symbolic):  Take additional parameter
    specifying whether to demangle.
    (print_address):  Pass in asm_demangle to control demangling.
    (print_address_demangle):  New fn, takes explicit arg to control
    demangling.
    * utils.c:  Add new vars demangle and asm_demangle, and let them
    be set and shown.
    (fputs_demangled):  If !demangle, just print the argument.
    (fprint_symbol):  If !demangle, just print raw symbol.
    * valprint.c (val_print):  Call print_address_demangle rather than
    print_address, to cause demangling to depend on the global
    rather than assembler-level demangling setting.
    * WHATS.NEW, gdb.texinfo:  Document.

    * main.c (show_command):  Show all settings if no arg.
    (initialize_main):  Make "info set" the same as naked "show".
    * command.c (cmd_show_list):  Handle prefix commands in the
    list, and print the name of the setting as well as its English
    description and value.

    Allow gdb functions to specify where a line should wrap if it
    exceeds the size of a terminal line.  Use it to make the output
    prettier.
    * utils.c (set_screen_width_command):  New fn, mallocs a buffer
    of the right size when screen width changes.
    (set_screensize_command, screensize_info):  Remove #if 0'd fns.
    (wrap_here):  New fn, indicates a point in the output where we
    should wrap the line rather than just letting it overflow at a
    random place.
    (fputs_filtered):  Implement wrapping.
    (n_spaces):  New fn, returns a pointer to N spaces.
    (print_spaces_filtered):  Use n_spaces.
    * defs.h (n_spaces):  Declare.
    * stack.c (print_frame_info):  Wrap with 4-space indent after
    fn name and before filename and line number.
    * printcmd.c (print_frame_args):  Wrap with 4-space indent
    before each argument name is printed.
    * valprint.c (value_print):  Wrap with no indentation before
    each repetition.
    (val_print_fields):  Wrap with indentation relative to nesting
    level before each field name.
    (val_print):  Wrap with nesting indentation before array elements.
    * command.c (do_setshow_command):  Avoid extra newlines,
    wrap with 4-space indent around values printed, end with period.
    * WHATS.NEW, gdb.texinfo, gdb-int.texinfo:  Document.

    * breakpoint.c (breakpoint_1):  Implement addressprint for
    "info breakpoints" display.  Change file name and line number
    format to " at file:nnn" rather than " (file line nnn)".
    * gdb.texinfo:  Document.


Fri Jan 18 07:21:25 1991  John Gilmore  (gnu at cygint.cygnus.com)

    Frozen for gdb-3.92.6 release.

    README, WHATS.NEW:  Update for 3.92.6 release.

    tconfig/{altos, i386v, i386v32, m88k, umax}:  Eliminate
    coffread.o from configs since it is now built by default.
    tconfig/{3b1, altosgas, arm, convex, hp300bsd, hp300hpux,
    i386v-g, i386v32-g, isi, merlin, news, news1000, np1, pn,
    pyramid, symmetry, vax, vxworks68}:  Eliminate dbxread.o
    from configs since it is now built by default.

    Makefile.dist: Update for release 3.92.6.  Handle files that
    have been moved to ../include, ../getopt, or ../bfd.  Add
    saber.suppress and tests directory.  Add config.status to
    the release (it will say "none").

    coredep.c:  Minor formatting fixes.

    These changes were made in early December but only checked in now:
    * nindy-share/Onindy.c, nindy-share/coffstrip.c,
    nindy-share/nindy.c:  lint
    * nindy-share/nindy.c (ninStopWhy):  Don't byteswap the
    register values coming back from the target; we store values
    in target byte order everywhere.

Wed Jan 16 19:01:37 1991  John Gilmore  (gnu at cygint.cygnus.com)

    * am29k-opcode.h, am29k-pinsn.c:  Add 29050 opcodes.

    * valprint.c (cplus_val_print, val_print_fields):  New functions,
    which print C++ objects.  They conspire to avoid printing a
    virtual base class more than once, following all the twists and
    turns of C++ virtual base rules.
    (val_print):  Call the above rather than do it by hand.

    * symfile.c (symbol_file_add):  Only reset symfile_mtime for main
    symbol file, not for added files like shared libs.  This really
    needs to be generalized to a timestamp per file.

    * core.c (cleanup_core):  Avoid coredump if no core file.

    * config.gdb:  Accept -host or -target in place of +host or
    +target.

    * coffread.c (find_linenos):  Avoid desupported BFD interface
    to line numbers.  We still read them manually rather than using
    BFD's "generic" features.

    * gdbrc.tex, threecol.tex:  Add GDB reference card and its
    formatting code.
    Makefile.dist:  Add refcard to OTHERS list for creating tar files.

    * Makefile.dist:  Eliminate use of $< in explicit targets.

    * readline/Makefile:  Use $< rather than $*.c, which does not
    include the VPATH in GNU Make.

    * tconfig/i960-bout, tconfig/i960-coff:  These are identical
    copies of tconfig/i960, added for global configuration
    compatability.  All i960 versions can read both coff and b.out.

    * tm-88k.h:  Fix multiline macro that lacked \'s.  Remove
    COFF_FORMAT and COFF_CHECK_X_ZEROES since these are now handled
    automaticaly.

    * TODO:  Think of more things to do.

Wed Jan  2 19:09:29 1991  John Gilmore  (gnu at spiff.cygnus.com)

    tconfig/{am29k,i960,sun2*,sun3*,sun4*}:  Eliminate config
    of sdb versus dbx debug symbols.  Add kludge for 68881 80-bit to
    64-bit float conversion.

    tconfig/sun4, tconfig/sun3, xconfig/sun4, xconfig/sun3:  Make
    equivalent to sun?os4 so global config works.

Wed Jan  2 18:20:51 1991  John Gilmore  (gnu at spiff.cygnus.com)

    Fix from Eberhard Mattes <[e-mail]>

    * main.c:  Only declare linesize once; declare pagesize not at
    all, since it is never used.
    (main):  Clear newly allocated line before it is used.

Fri Dec 28 00:13:42 1990  John Gilmore  (gnu at cygint)

    Further stabilization for the Intel 960.

    * Makefile.dist: Parameterize the location of the "include"
    and "bfd" directories, as well as "getopt".  Add symfile.c.
    Link in both dbxread and coffread.  Fix up "make depend" to
    rewack the locations of include, bfd, and getopt in its output.

    * README:  Document moving include files, improve some of
    the other doc.

    * coffread.c:  Move common code out to symfile.c.  Change
    symbol_file_command style interface to use new *_symfile_init
    and *_symfile_read interface under BFD.  Use BFD internal
    info to locate line table, symbols, etc.

    * core.c (core_fetch_registers):  Rename to get_core_registers
    to avoid confusion with fetch_core_registers.
    (register_addr):  Move to coredep.c, which is already machine
    dependent.  This leaves core.c pretty clean of dependencies.

    * coredep.c (register_addr):  Accept this routine from core.c.

    * dbxread.c: Move common code (with coffread.c, etc) into new
    symfile.c.  Each psymtab now contains a pointer to the
    format-dependent function that knows how to read it in.  Make
    some things static.
    (dbx_psymtab_to_symtab): Renamed from psymtab_to_symtab_2.
    (process_one_symbol): Add code to complain about a "compiler bug
    we muzzle here", if we actually see it.

    * eval.c (evaluate_subexp):  Insert missing "break" statements
    in code that determines whether a variable is an lvalue in
    memory, register, or whatever.    I detected this via a compiler
    bug in which it *almost* mashed out the whole switch statement.

    * gdb-int.texinfo:  Add minor sections on configuring gdb for
    release, and about the README file.

    * infcmd.c (registers_info):  Fix formatting somewhat.  Still
    not as pretty as before, but it handles byte swapping.

    * remote-nindy.c: If data cache routines are interrupted while
    waiting for the remote end, be sure that any uninitialized cache
    blocks are on the free list, not on the valid list!

    * symfile.h: Flesh out this header file with all the various
    routines and variables that have been merged in from dbxread.c
    coffread.c, and symtab.c to symfile.c.

    * symfile.c: New file, containing code common to dbxread.c,
    coffread.c, and some code from symtab.c.  All generic code for
    reading symbol files should be in here now.
    (unrecord_misc_function):  Remove unused function.

    * symtab.h:  Remove file-reading things to symfile.h.

    * symtab.c:  Remove file-reading things to symfile.c.

    * tm-i960.h:  Fix FRAME_CHAIN types; define PRINT_RANDOM_SIGNAL
    to decode i960 fault types.

    * target.h, remote.c, remote-eb.c, remote-vx.c, remote-nindy.c,
    target.c: Change type of the "resume" function from int to void,
    since its result was never used.

Sat Dec 22 02:51:40 1990  John Gilmore  (gnu at cygint)

    * main.c:  Replace "stupid" with "caution"; you now "set caution
    on or off".

    * printcmd.c (print_scalar_formatted):  Fix typo in 'g' format

    * infcmd.c (do_registers_info):  Call val_print to deal with the
    byte order of the registers being printed.  FIXME, this makes
    the formatting of the output uglier.

    * infcmd.c (wait_for_inferior):  If PRINT_RANDOM_SIGNAL is
    defined, call it for signals the debugger doesn't itself use.
    The i960 uses this for more detailed fault information.

    * remote.c (remote_open):  If arg is null, print help rather than
    dumping core.

    * sparc-xdep.c (register_valid):  Avoid declaring size, since
    various modules will think of various sizes depending on the
    architecture of their tm-file.  FIXME, we need protection against
    actually entering one of those modules, which would clobber
    storage if not for the target architecture compiled into gdb.

    * stack.c (up_command, down_command):  Always print the frame
    you arrive at.
    (up_silently_command, down_silently_command):  New commands
    for use in scripts.

    * i960-pinsn.c (reg), i960-tdep.c:  Lint.

    * i960-tdep.c (i960_frame_chain_valid): Lookup_symbol now takes
    more parameters than it used to.

    * findvar.c (registers):  Increase slop to 256 bytes, which should
    protect us against even most RISC machines with large register
    sets.
    (locate_var_value):  Move declaration inside related ifdef.

    * remote-nindy.c ():  Use TIOCSETN rather than TIOCSETP
    throughout, to avoid throwing away buffered input from the board.
    (nindy_wait):  Supply_register takes addr_of_value, not value.
    (i960_print_fault):  Renamed from i80960_fault.
    (nindy_fetch_registers):  Avoid have_regs stuff, just get them.
    (nindy_store_registers):  Avoid regs_changed stuff, just stuff
    them.
    (nindy_create_inferior):  Don't bother to write PC_REGNUM since
    we can set the PC in the call to proceed().  Unpush nindy_ops
    before pushing it on top, to avoid message to user.  Eliminate
    commentary from Unix machines that just misleads here.
    (reset_command):  Fix error message to suggest target command.

Wed Dec 19 11:03:56 1990  John Gilmore  (gnu at cygint)

    Release 3.92.5 as frozen.

    Stabilize the merged release...with help from lint, Saber C,
    gcc -W, etc.

    Everywhere:  Add include files needed to declare return types
    of functions called.

    * gdb.texinfo:  Roland Pesch is documenting gdb, glory be!

    * breakpoint.h:  Add undeclared breakpoint functions, and some
    functions for display handling since I couldn't think of a better
    .h to put them in.

    * breakpoint.c (insert_breakpoints):  Make code for disabling
    shared library bkpts more likely to work.  It's used when we
    rerun a program and stop before the shared library has been
    mapped in.
    (breakpoint_cond_eval, bpstat_stop_status):  Pass arg as int,
    cast from pointer, so it squeezes through catch_errors.
    (bpstat_stop_status):  Fix logic broken some time ago.  We now
    always create a bpstat if the stop address matches a breakpoint,
    even if we don't stop there -- just like the old code used to do
    before I got my fingers into it (sigh).
    (breakpoint_1):  Print "ignore count" after "stop only if"
    condition, since that's how it actually works.
    (mention):  Handle watchpoints as well as breakpoints.
    (watch_command):  use set_raw_breakpoint and mention to do most
    of the work (and initialize all the fields!).  Only pass one
    arg to parse_c_expression, since that's all it takes.

    * command.c (not_just_help_class_command):  Rename arg to args
    since we ignore "unused argument" warnings on vars named "args".
    inflow.c (child_terminal_info):  ditto.
    infptrace.c (kill_inferior):  ditto
    main.c (catch_errors, version_info, quit_command, pwd_command,
    source_command, dump_me_command, editing_info,
    set_history_size_command, set_history, show_history,
    set_verbose): ditto
    stack.c (locals_info):  ditto
    target.c (target_files_info):  ditto
    valprint.c (set_input_radix, set_output_radix):  ditto

    * core.c:  Remove old variables for handling core and exec file
    sections (data_start, data_end, stack_start, stack_end,
    reg_stack_start, reg_stack_end, reg_stack_offset, text_start,
    text_end, exec_data_start, exec_data_end, text_offset,
    exec_data_offset, data_offset, stack_offset).  They're
    superseded the more general build_section_table and
    xfer_memory.
    (get_exec_file):  Mention the `file' command.
    (read_memory_check):  Rename to memory_error, and only call it
    in the case of an actual error.
    (read_memory, write_memory):  call memory_error.
    (core_fetch_registers):  Register section name is ".reg".

    coredep.c:  Remove a bunch of crud now that all this file does
    is pull the registers out of a core file.
    (fetch_core_registers):  Rewrite to actually work, I hope.

    dbxread.c:  Use a.out.gnu.h, not system a.out, now.
    Replace index() with strchr().  Remove all the pre-BFD macro
    definitions for accessing the symbol file.
    (struct dbx_symfile_info):  Encapsulate the information that
    dbx_symfile_init needs to pass to dbx_symfile_read in this
    struct.

    (dbx_new_init, dbx_symfile_init, dbx_symfile_read,
    dbx_symfile_discard): Rearrange symbol file reading to divide
    the format-specific part from the format-independent part,
    leaving the format-independent part such as file name expansion
    and opening in symtab.c.  This replaces
    partial_symbol_file_open and partial_symbol_file_read.
    Symbol_file_read, add_file, add_file_target_command,
    add_file_addr_command move to symtab.c.  Pass an explicit
    "mainline" flag for when reading the main symbol table, rather
    than relying on the offset address to be zero or nonzero.

    (dbx_symfile_read): Don't allow void *'s to be printed as
    typedefs.
    (SWAP_SYMBOL):  Use bfd routines to byte-swap the symbols.
    (ADD_PSYMBOL_TO_LIST):  Make the "function call rather than
    macro" debug version really work.
    (read_dbx_symtab):  Remove unref'd parameter inclink.
    Avoid swapping N_SLINE symbols, for speed.
    Merge N_TEXT!N_EXT case with the other external symbol
    definitions' case. Add comments.
    (start_psymtab):  Allocate the symfile name in the psymtab on
    the psymbol_obstack, rather than using the caller's storage.
    (end_psymtab): Only allocate a dependencies list if there are
    more than zero.
    (psymtab_to_symtab_2):  Use BFD when reopening file to read
    its symbols for real.
    (read_struct_type):  Add FIXME comments where it needs work
    for C++ bogosity.
    (read_huge_number):  Add FIXME about overflows.
    (read_range_type):  Add FIXME about comparing a long to 1<<32.

    * coffread.c:  Minor changes to move things closer to the new
    regime with symtab.c and dbxread.c   Major work is still needed
    here.

    * exec.c (exec_file_command):  Remove old variables (see core.c
    above).
    (xfer_memory): If memory transfer is right at the end of a
    section, don't lose.

    * findvar.c (get_saved_register):  If value is in a real
    register, LVAL is lval_register, not lval_memory.

    frame.h:  Declare print_sel_frame and record_selected_frame.

    gdb-int.texinfo:  New file, for GDB internals documentation.
    Very simple, unformatted doc of cleanups is there for now.

    gdbcore.h:  Remove obsolete variables that described a.out
    section addresses and offsets.  (See core.c above.)
    Declare fetch_core_registers and registers_fetched.

    getopt.c:  Declare char *alloca(); even on SPARC.

    infcmd.c (run_command):  Call target_kill rather than
    kill_inferior.
    (step_command, next_command, stepi_command, nexti_command):
    Declare from_tty parameter even though we don't use it.
    (run_stack_dummy):  argument BUFFER is a char array, not
    a pointer to REGISTER_TYPE.
    (finish_command):  using_struct_return needed a value *,
    not a struct symbol *.

    * infptrace.c (child_xfer_memory):  To avoid dependency on
    where sections are in memory, try PT_WRITE_D and if that fails,
    try PT_WRITE_I.  Most Unixes don't care which you use.

    * infrun.c (step_resume_break_shadow):  Change to array to
    match other breakpoint shadow storage.
    (clear_proceed_status):  Pass address of bpstat to
    bpstat_clear, not the bpstat itself.
    (child_create_inferior):  FIXME comment about if the child
    exits.
    (start_inferior):  Remove old function.
    (child_open):  Use target_kill rather than kill_inferior.
    (wait_for_inferior):  Ditto.
    (insert_step_breakpoint, remote_step_breakpoint):  Use
    new step_resume_break_shadow.

    * inftarg.c (child_wait):  If all child processes die,
    pretend that the one being waited for exited with signal 42.

    * main.c (command_line_input):  When scanning for comments,
    don't coredump on unclosed quotes.
    (quit_command):  Use target_kill rther than kill_inferior.
    (_initialize_main):  Rename class_user from "user" to
    "user-defined".

    * printcmd.c (print_command_1):  Initialize "fmt" if no format
    is specified by the user.
    (print_frame_args):  Only add to args_printed if we are
    actually fetching args from the stack (avoiding undefined
    arg_size).
    (_initialize_printcmd):  Remove bogus \{ from string.

    * remote-eb.c (eb_open):  Avoid coredump on no argument.

    * remote-nindy.c:  Bring out of Intel environment into new
    target environment.  Remove all conditional compilation on
    I80960.  Massive hacking throughout.
    (nindy_xfer_inferior_memory):  New routine stolen from
    infptrace.c.
    (nindy_create_inferior):  New routine pieced together, probably
    not quite working yet.
    (nindy_ops):  New target_ops struct for nindy.

    * remote-vx.c:    Use write_memory rather than target_write_memory
    to get error checking.
    (vx_add_file_command, vx_open): Use symbol_file_add rather than
    add_file.
    (vx_create_inferior):  Use target_terminal_ours...

    * signame.c (_initialize_signame):  Always initialize, since
    we need the table for things other than psignal.

    * solib.c (solib_add):  Use symbol_file_add, not add_file.
    (solib_address):  Return boolean result rather than struct
    pointer which nobody else knows the type of.

    * sparc-tdep.c, valops.c:  Use write_memory rather than
    target_write_memory, to get error checking.

    * stack.c (locals_info, catch_info, args_info,
    get_selected_block, frame_command, up_command): Use
    target_has_stack, rather than have_inferior_p or
    have_core_file_p.

    * sun3-xdep.c (fetch_core_registers):  Rewrite for new BFD regime.

    * symfile.h:  New file, defining the interface between the
    generic and object-file-specific symbol reading code.

    * symtab.c:  Move generic symbol-reading interface to symtab.c,
    from dbxread.c, coffread.c, mipsread.c, etc.  Add symtab_fns
    table to map BFD targets to symbol-reading modules in GDB.
    Change index to strchr.
    (lookup_struct_elt_type):  Use error() rather than hand-made
    simulations thereof.
    (lookup_partial_symbol):  Speedup slightly when length == 0.
    (symbol_file_add):  New function.
    (symbol_file_command):  Call it.
    (symfile_open, symfile_init):  New function.
    (add_file_target_command, add_file_addr_command): moved from
    dbxread.c.

    * target.c (target_command):  use target_kill.

    * target.h (target_files_info):  Don't declare, never called
    from outside.

    * tm-sun2.h, tm-sun3.h (STACK_END_ADDR): Use system include
    files to determine stack end address.

    * valarith.c (value_x_binop, value_x_unop): Change error message
    to be more useful.  Pass proper argument to value_struct_elt.

    * valops.c (value_assign):  FIXME comment that long long
    bitfields will break here.

    * Makefile.dist:  Add symfile.h, remote-nindy.c, remote-eb.c.
    Update `make saber_gdb' to work better.

    * TODO:  A woman's work is never done.

    * cplus-dem.c, environ.c, inferior.h, infrun.c, inftarg.c,
    main.c, obstack.c, printcmd.c, remote-eb.c, remote-nindy.c,
    remote-vx.c, remote.c, solib.c, source.c, sparc-pinsn.c,
    sparc-tdep.c, sparc-xdep.c, symmisc.c, symtab.c, symtab.h
    target.c, terminal.h, tm-sparc.h, tm-sunos.h, utils.c,
    valops.c, valprint.c, exec.c:  Lint.


Wed Dec 12 23:44:15 1990  John Gilmore  (gnu at cygnus.com)

    Continuing Intel 960 port merge of GDB.

    * Makefile.dist:  Merge i960 "nindy-share" files.  Rename
    malloc.h to gmalloc.h to avoid name conflicts in /usr/include.
    Don't ship gdb.dvi in tar file.  Link gdb with init.o, not init.c.
    Wack over "make depend" so it handles files in subdirectories
    vx-share, nindy-share, bfd, and in the current directory.

    * blockframe.c (get_prev_frame_info):  Remove fatal error
    if stack not defined.

    * core.c (core_open, core_detach):  New functions that handle
    the old "core-file" command as "target core" and "detach" instead.
    (core_file_command):  Call them.
    (core_xfer_memory):  Use common routine xfer_memory.

    * dbxread.c:  Include a.out.gnu.h, not system a.out.h.
    dbxread now uses bfd for everything but symbol reading itself.
    BFD internals are used to drag out the relevant file offsets.
    (partial_symbol_file_open):  Change args all around for BFD.

    * symtab.c: Rename "value" to "val" everywhere, so we can
    #include "value.h".
    (symbol_file_command):  New command, moved from dbxread.c
    and coffread.c.  It uses BFD to read the file, then vectors
    based on its type, to dbx or coff symbol readers.
    * symtab.h:  Extern a few vars for symbol_file_command.

    * target.h:  Breakpoint takes a char * save area, not a char **.

    * valprint.c (val_print):  When unpacking bitfields, offset
    the address in gdb of the value, if it is declared with a shorter
    type.  Remove the last "runtime kludge test" of host byte order.

    * utils.c:  Remove old my_bfd_read routine.

    * stack.c (frame_info):  Use target_has_stack.  Print program counter
    register's actual name rather than "pc", since it's called the
    "ip" (instruction pointer) on the i960 (sigh).

    * target.c (target_command):  Add command for selecting a target
    type and calling its open routine.  This is used for initiating
    communication with a particular target, in a generic way.

    * tm-i960.h:  Update for modern gdb.  Remove semicolons from
    various macros.  Handle reading struct return convention, and
    error-out attempts to return structs with the "return" command.
    Be sure gdb doesn't think we know how to call functions in the
    inferior.

    * i960-tdep.c:  Rename FRAME_CHAIN_VALID and FRAME_FIND_SAVED_REGS
    to i960_xxx in lower case.
    (arg_address):  Circumvent errors due to LOC_ARG_BLOCK
    not being defined yet.

    * remote.c (remote_open):  Call start_remote to initialize
    wait_for_inferior during open.
    (remote_xfer_inferior_memory):  Return length written rather
    than errno value.

    * remote-vx.c (target_command -> vx_open):  Use new generic
    target command.
    * remote-eb.c, inftarg.c, exec.c: ditto.

    * infrun.c:  Fix comments.
    (attach_program -> child_open):  Use new generic target command.
    (wait_for_inferior):  Clear saved register values before target_wait,
    so target_wait can set some of them if convenient.

    * infptrace.c (fetch_inferior_registers, store_inferior_registers):
    Return success indicator, not void.
    (child_xfer_memory):  Avoid fetching initial word if we'll
    overwrite it anyway.

    * infcmd.c (attach_command):  Use new generic target open routine.
    (_initialize_infcmd):  Update doc on attach and detach commands.
    (do_registers_info):  Merge in a byte-order problem as a FIXME
    comment.

    * findvar.c (find_saved_register):  Avoid problem in current frame.
    (read_relative_register):  Ditto.
    (write_register):  Convert byte order on the way out.

    * exec.c (file_command):  Add.
    (add_to_section_table, exec_command):  Use new bfd_map_over_sections.
    (xfer_memory):  Common function between core_xfer_memory and
    exec_xfer_memory.
    (exec_xfer_memory):  Use it.

    * pn-opcode.h:  Document that a "PN" is a Gould PowerNode.

    * breakpoint.c, breakpoint.h, symtab.h, value.h, frame.h, utils.c,
    valops.c, stack.c, target.c, sparc-xdep.c, source.c, printcmd.c,
    infcmd.c, i960-pinsn.c, eval.c, defs.h:  lint and gcc -Wall.

Sun Dec  2 16:45:06 1990  John Gilmore  (gnu at cygnus.com)

    Merge Intel 960 port of gdb, continuing...

    * dbxread.c (partial_symbol_file_open, partial_symbol_file_read,
    symbol_file_command):  Pass from_tty arg to hush 'em up.

    * coffread.c (symbol_file_command):  Avoid output if from_tty != 1.
    Add magic numbers for 960 COFF format.

Fri Nov 30 09:18:20 1990  John Gilmore  (gnu at cygnus.com)

    Merge Intel 960 port of gdb, from Intel "1.2" release.

    CHANGE_LOG entries from their port, which was based on
    gdb+-2.8.0:

    Thu Sep  6 11:02:22 PDT 1990
    Remove temp file if download is interrupted.

    Wed Aug  1 09:08:33 PDT 1990
    Now uses binary protocol to talk to NINDY.
    Old hex protocol (NINDY 2.13 and older) supported with -O switch.
    Times out after 5 seconds when trying to talk to NINDY.

    Tue May 29 12:54:49 PDT 1990
    Added variable baud rate (-b switch).
    Source code reorganization.

    Thu Apr 26 11:09:55 PDT 1990
    More cleanup of batch mode;  specifically, execute "-s", "-e", and
    "-se" switches as soon as they are encountered on the invocation line.

    Fri Apr 20 13:47:15 PDT 1990
    Add -brk switch.

    Thu Apr 19 09:54:28 PDT 1990
    Add 'reset' command.

    Wed Apr 18 09:48:07 PDT 1990
    After opening remote tty, wait for 1 second to go by without input
    from it before trying to talk to NINDY (fixes problems with the
    Heurikon HK80/V960E).

    Mon Apr  4 16:33:05 PDT 1990
    Some output was not being suppressed in 'batch' mode.

    Thu Mar 22 15:31:11 PST 1990
    Ask user if old symbol table should be deleted when new file is
    downloaded.

    Allow user to run a program downloaded before gdb960 was brought up.

    Correct "exec-file" help message for i80960 context.

    Correct bug in calculating user space address:  could occasionally
    corrupt user program.

    Make sure to zero low-order bits in rip's because of bug in 960CA
    A-step part:  could cause operation faults when "next"ing across
    a function call.

    Correct bug that made it impossible to get source line numbers for
    code loaded at addresses higher than 0x7fffffff.

    Wed Jan 10 12:43:22 PST 1990
    Open remote tty for exclusive use.

    Fri Jan  5 12:14:42 PST 1990
    Correct disassembly (CA manual was right after all):
    opcode for sysctl is 0x659

    Mon Oct 23 12:03:04 PDT 1989
    Use G960BASE and G960BIN environment variables to find 'sx' utility.

    Mon Oct 16 14:15:09 PDT 1989
    "sfr0"-"sfr31" should have been named "sf0"-"sf31"

    Mon Oct  2 15:56:31 PDT 1989

    Added 960CA disassembly support.

    To simplify maintenance:
        - eliminated use of symblic links on pinsn.c: use i960-pinsn.c
            directly instead.
        - eliminated opcode.h: incorporates tables into i960-pinsn.c
        - moved 960-specific routines from i960-pinsn.c to i960-md.c
        - made disassembly interface identical to that in gdmp960.



Wed Nov 28 21:32:48 1990  John Gilmore  (gnu at cygint)

    * target.h: Allow targets to stack.  Add target_has_memory,
    _registers, etc.  Restructure memory access and "info files"
    to walk the target stack.
    * exec.c, core.c, inftarg.c, remote.c, remote-vx.c, remote-eb.c,
    target.c:  Change tables to match target.h.
    * inflow.c (child_mourn_inferior):  pop child_ops.
    (generic_mourn_inferior):  Use new has_stack flag.
    * infptrace.c (child_xfer_memory): New memory regime.
    * inftarg.c (child_files_info): New "info files" regime.
    * remote-eb.c: New memory regime, new info files.
    * remote-vx.c: New memory regime, new info files.  Now use
    separate targets for VxWorks attachment to machine, and
    actually running a process under VxWorks, since one has
    stack & execution & regs and the other doesn't.
    * remote.c: New memory regime, new info files.
    * sparc-xdep.c (fetch_core-registers):  New memory regime.
    * target.c:  New routines and support for stacked targets,
    new memory regime, new info files regime.


    Generalize section handling for an arbitrary number of sections,
    including use of the new BFD (binary file) library.
    * gdbcore.h: Add struct section_table.
    * exec.c (build_section_table):  Iterate all sections and
    record what gdb needs to know about them.
    (exec_command):  Use it.
    (exec_xfer_memory):  Use the table.
    (exec_files_info):  Print the table.
    * core.c (core_file_command, core_xfer_memory, core_files_info):
    Likewise.
    * source.c (find_source_lines):  Use bfd_get_mtime.
    * dbxread.c:  Quick changes to make it compile with new BFD.
    * utils.c (error):  Avoid using bfd_error in generic routines.

    * core.c (core_fetch_registers):  Get from the ".regs" section of
    the BFD core file.
    * sparc-xdep.c (fetch_core_registers):  Use the .regs info.

    * inferior.h (attach_flag):  Export.
    * infcmd.c (run_command):  use new target_create_inferior.
    * infrun.c (child_create_inferior):  Don't return result.
    * Makefile.dist (VERSION):  3.91.4.

Fri Nov 23 28:15:38 1990  John Gilmore  (gnu at cygint)

    * breakpoint.c (bpstat_num):  Handle breakpoints which have
    since been deleted, such as temporary breakpoints.
    infcmd.c (program_info):  ditto.

    * core.c (core_file_command):  Display the frame where the core
    dump occurred.

    * main.c:  lint.

    * remote-vx.c (target_command):  Merge in target command from
    targ-vx.c.  A few other cleanups.

    * TODO, Projects:  Lots more stuff to do...

Fri Nov 23 18:15:38 1990  John Gilmore  (gnu at cygint)

    Massive changes to wall off the remote-debugging interface
    behind a function vector.  The port to handle VxWorks targets
    is also part of this.

    All files:  Replace references to renamed functions,
    remove references to remote_debugging, remove references to
    have_include_file, have_core_file in favor of target_has_stack,
    target_has_memory, etc.

    * Modularize the breakpoint interface.
    breakpoint.h (BREAKPOINT_MAX):  New define sets max length of
    a breakpoint instruction.
    breakpoint.c: struct breakpoint's shadow_contents now sized as
    BREAKPOINT_MAX.
    (insert_breakpoints):  Vector to target to install breakpoints.
    (remove_breakpoints):  Vector to target here too.
    Remove REMOTE_SA_SPARC kludges and other remote_debugging.
    sparc-tdep.c (single_step):  Use new breakpoint interface for
    the single-step breakpoints.
    mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):
    New file, contains routines to insert and remove breakpoints by
    reading out the old contents and later replacing them.  This is
    how ptrace breakpoints work, and many remote systems as well.

    * tm-vxworks68.h:  New config file, overrides a few things for
    Wind River's preferences.

    * target.h:  New file, for transfer vector used to talk to the
    inferior (child, attached, core, exec, remote, etc).  All accesses
    to the thing being debugged should come through these vectors.
    target.c:  New file, routines to handle transfer vector.
    (various files):  Add transfer vectors XXX_ops for the various
    targets and pseudo-targets (core files, etc) we support.

    * breakpoint.c (bpstat_stop_status):  Further explorations of
    watchpoints and why things don't work all the time.
    (bpstat_alloc):  New fn to allocate a bpstat and chain it.

    * config.gdb:  Only add "source ${srcdir}/.gdbinit" to
    the local gdbinit if it doesn't already have it.

    * core.c (core_ops):  add and install.
    Allow core debugging without exec file.

    * dbxread.c (free_and_init_header_files):  Merge two fns.
    (end_symtab):  Free named symbol table when a new version comes in.
    (read_dbx_symtab):  Relocate all kinds of symbols with base
    address.  First step toward handling different text, data, bss
    reloc.
    (add_file_addr_command):  Renamed add_file_command.
    (add_file_command):  Vector to remote handler.
    Add "load" as an alias for "add-file" command.

    * defs.h:  Allow "volatile" to be used in non-ANSI; use it for
    non-returning functions.

    * exec.c:  Add exec_ops, and push it as a target when an exec
    file is specified.

    * infcmd.c (run_command):  Pass executable file name and arg list
    separately when starting an inferior.  Permit "run" when no exec
    file is specified, for VxWorks.
    (detach_command):  Move to child_detach in inftarg.c.

    * inftarg.c:  New file.  Unix-child-specific routines, and the
    child_ops structure.

    * inferior.h (registers):  Export "registers" as the way for
    target dependent register handlers to find gdb's local copy of
    the registers.  Rename "stop_after_attach" to "stop_soon_quietly"
    since it is now used by places that want wait_for_inferior to
    handle the grunge but want to see every trap from the inferior.

    * inflow.c (create_inferior):  Pull out, and merge into infrun.c.
    Eliminate remote_debugging hooks in terminal handling.

    * infrun.c:  Replace start_inferior with child_create_inferior.
    Move all the hair of Unix shells and ptrace idiosyncracies into
    child_create_inferior, so remote handlers don't have to deal.
    Remove running_in_shell.  Rename stop_after_attach to
    stop_soon_quietly, and use it in a few other places where we want
    to just call wait_for_inferior and get control back on the first
    trap.  trap_expected now never takes a value > 1.
    (init_wait_for_inferior):  Initialize static vars when a new
    process is created.

    main.c (gdbinit):  Add new hook for .gdbinit file name, let
    it be overridden by config files as GDBINIT_FILENAME.
    (DEFAULT_PROMPT):  Add new hook for overriding (gdb) prompt.
    Both of these are used for VxWorks gdb.

    mcheck.c:  rename include file "gmalloc.c" to avoid problems
    with system include file "malloc.c".

    param-no-tm.h:  New include file, same as param.h but does not
    include the default "tm.h" file.  This is used in files where
    the target is known, e.g. remote-eb.c or sparc-xdep.c.

    param.h:  Now just a shell that includes tm.h and param-no-tm.h.

    remote-vx.c:  New file, VxWorks remote debugging support.  Uses
    RPC routines that are shared with the target system, in directory
    ${srcdir}/vx-share.

    remote.c:  Vectorize remote interface.

    source.c:  Globalize source_path, and make an alias "l" for "list"
    since we now have the "load" command.

    sparc-xdep.c:  Use new param-no-tm.h.

    symmisc.c (free_named_symtab):  Add new function from Wind River.
    However, ifdef it out for now while we think about what it should
    really be doing.

    tm-sun3.h, xm-sparc.h, xm-sun3.h, xm-symmetry.h: Move
    PREPARE_TO_STORE to
    the xm- file, and change its name to CHILD_PREPARE_TO_STORE, since
    non-Unix-children handle this with their own code in the target
    transfer vector.

    Makefile.dist:  Roll version to 3.92.3.  Add vx-share stuff to
    source and target lists.  Add vx-share to default list of include
    directories.  Add new files to src and target lists: mem-break,
    target, inftarg, remote-eb, remote-vx, targ-vx.  Be sure the
    ${srcdir} versions of munch and createtags are used.

    * valops.c (find_function_addr):  Split out of call_function.
    (call_function_by_hand):  Rename call_function; this function
    calls functions in the target by laboriously patching the target
    word-by-word with the right stack, args, regs, etc.


Mon Nov  5 17:29:10 1990  John Gilmore  (gnu at cygint)

    Handle AMD 29000 a bit better.

    * remote-eb.c (readchar):  Mask received char log to make it readable.
    (remote_start):  Pass arguments down to executing program.
    Make startaddr unsigned.
    infrun.c (start_inferior):  Accept args, pass them to
    remote_start.
    infcmd.c (run_command):  Pass args down to start_inferior.

    * tconfig/am29k-aout, tconfig/am29k-coff:  New files specifying
    the target object file format.
    tm-29k.h:  Pay heed to COFF_ENCAPSULATE.

    * am29k-pinsn.c (print_insn):  Print 0x on hex numbers in disassembly.
    am29k-tdep.c (examine_prologue):  Better checking of function prefixes.

Sun Oct  7 18:20:45 1990  John Gilmore  (gnu at cygint)

    * Makefile.dist (VERSION):  Roll version to 3.91.9 and freeze.
    * TODO:  We did a few things, we have more to do though.

    * xm-sparc.h (CLEAR_DEFERRED_STORES):  Define.
    * inflow.c (inferior_died):  Clear deferred stores.

    * Debug problems with dummy frames and calls to the inferior.
    * tm-sparc.h (PUSH_DUMMY_FRAME, POP_FRAME):  Move to sparc-tdep.c.
    * sparc-tdep.c (do_restore_insn):  Simplify.
    (sparc_frame_find_saved_regs):  Simplify and fix what we find.
    (sparc_push_dummy_frame):  Simplify and fix what we push.
    (sparc_pop_frame):  Slightly more hair here, deciding whether
    we are restoring a saved PC or returning to a return address in %i7.
    * sparc-xdep.c (read_inferior_registers):  Debug if valid reg is read.

    * utils.c (xmalloc, xrealloc):  Return type depends on __STDC__.
    * symtab.h (xmalloc): ditto, for obstack_chunk_alloc.
    * obstack.h (chunkfun): ditto.
    * defs.h (xmalloc, xrealloc): ditto

    * utils.c (quit):  Grab the terminal from the child if necessary.

    * inflow.c (term_status_command): Rename to term_info, change
    to "info terminal".

    * sparc-pinsn.c (print_insn):  Disassembly prefers real instructions.
    (is_delayed_branch):  Speed up.
    * sparc-opcode.h: Add ALIAS bit to aliases.  Fix up opcode tables.
    Still missing some float ops, and needs testing.

    * Support for input and output radixes other than base 10
    * defs.h (input_radix, output_radix):  Declare.
    * expread.y (yyparse, parse_number):  Handle changes of input
    radix, and ambiguous names-or-numbers in radixes >10.
    * printcmd.c (print_scalar_formatted):  Print formatted hex
    numbers in varying column widths.
    * valprint.c (val_print):  Use output_format to print scalar ints.
    (set_input_radix, set_output_radix, set_radix):  Create.
    (set_output_radix):  Set output_format from output_radix.
    (_initialize_valprint):  add `set radix' but leave the others off.

    * main.c (execute_command): Let stupid questions be turned off.
    (_initialize_main): Handle "set stupidity", etc.

    * main.c, inflow.c, inferior.h, frame.h, command.c, defs.h,
    sparc-pinsn.c, sparc-xdep.c, value.h, valops.c, values.c:  Lint.

Tue Oct  2 11:20:02 1990  John Gilmore  (gnu at cygint)

    * TODO, Makefile.dist, ChangeLog:  Freeze for 3.91.8 release.
    bfd stuff is still screwed up, but with some manual work, it
    compiles.

    * breakpoint.c (bpstat_do_actions):  Start over if a command
    proceeds the inferior, since the inferior will have stopped and
    will need to have its new stop-actions taken care of.

    * dbxread.c (read_struct_type):  Expression gives Sun3 4.0.3
    compiler fits, simplify it.

    * gdb.texinfo (directory command): Doc new dir command.
    source.c (directory_command):  "dir" now puts things on the front
    of the path, moves dups up front, and handles multiple names
    on the command line, inserting each one in order.  It also
    blows away cached line and full_filename info.

    * stack.c (backtrace_command):  Skip "more stack frames follow"
    unless interactive.

    * Change #ifndef HAVE_VPRINTF to #define MISSING_VPRINTF in
    xm-convex.h, xm-hp300bsd.h, xm-isi.h, xm-merlin.h, xm-news.h,
    xm-np1.h, xm-pn.h, xm-pyr.h, xm-symmetry.h, xm-umax.h, xm-vax.h.
    The only odd one was Gould NP1, which had defined vprintf to
    "printf"!!!

    * Merge Ted Goldstein <[e-mail]>'s changes for epoch.
    printcmd.c (print_command_1): Pass 'inspect' flag down as a global
    variable, inspect_it.
    valprint.c (print_string, val_print): Use the global inspect_it
    to indicate whether to print in Epoch style or normal style.

Mon Oct  1 23:55:26 1990  John Gilmore  (gnu at cygint)

    * printcmd.c (call_command):  add an alias for the "print" command
    which runs expressions and doesn't print the result if void.
    (print_command_1): implement it.

    * command.c: Remove #if 0'd code.  Initialize all the fields
    in add_cmd ().  Rename do_nothing_command to
    not_just_help_class_command, and make it externally visible.
    command.h: add user_commands to struct.
    * main.c (define_command):  Don't overload c->function with a char
    string as well as a function pointer.

    * eval.c (evaluate_subexp):  Reinstall tiemann changes to
    calling convention of value_struct_elt () that got dropped in
    merge.

    * tm-sparc.h (FRAME_FIND_SAVED_REGS):  move to sparc-xdep.c.
    sparc-tdep.c (sparc_frame_find_saved_regs):  ditto.

    * tm-sparc.h (POP_FRAME): replace some constants with defines.

    * sparc-xdep.c (store_inferior_registers):  defer stores to regs
    until a good time (e.g. when we are about to run the child),
    saving ptrace calls.
        * infrun.c (proceed):  handle DO_DEFERRED_STORES.
    * tm-sparc.h: define DO_DEFERRED_STORES.

    * sparc-xdep.c (store_inferior_registers): when storing float
    registers, don't store stack regs too.  When storing the SP,
    however, DO store the stack regs too.  This fixes a bug in which
    the dummy frame is not recognized when a call_function finishes,
    because its frame pointer (in the stack regs) was never
    initialized.
    (read_inferior_registers):  Mark WIM and TBR and FPS and CPS valid
    even though we don't know how to read them from an inferior.
    valops.c (call_function):  Comment about storing SP.

    * infrun.c (save_inferior_status): Save away the original bpstat
    chain so it can be restored later.  Install the copied version for
    use by whoever saved the status.  It will be blow away by
    restore_inferior_status, and the original chain restored.  This is
    important for people who have pointers into the original.

    * breakpoint.c, command.h, copying.awk, dbxread.c, defs.h,
    findvar.c, frame.h, obstack.h, obstack.c, inflow.c, value.h,
    main.c, printcmd.c, sparc-tdep.c, symtab.c, valprint.c: lint


Fri Sep 28 20:32:46 1990  John Gilmore  (gnu at cygnus.com)

    * Makefile.dist: Roll version to 3.91.8.  Add bfd.h and bfdconfig.h
    temporarily to the makefile.  Add am29k-opcode.h and WHATS.NEW.
    Add stuff.c and kdb-start.c to the OTHERS list for tar files.

Fri Sep 28 19:12:12 1990  John Gilmore  (gnu at cygint)

    * Merge Mike Tiemann's multiple inheritance changes from Sun.
    Store the baseclasses in a type struct starting from array element
    0 rather than from the unusual array element 1.

    dbxread.c: the above.
    (virtual_context): Add
    Read new debug information about which virtual function table
    a virtual function is from, and store it in fn_field.fcontext.

    symtab.h: Add fcontextt.  Fix baseclass indices.  Typo in
    TYPE_FN_FIELD_STATIC_P.

    symtab.c: the above.
    valops.c: the above.  Handle pointer casts of object *'s.
    (search_struct_method): Add.
    (value_struct_elt): First arg is now a pointer to a value, and is
    modified on return.

    valprint.c: the above.
    values.c (value_virtual_fn_field): Add type arg.  Handle
    offsetting to the proper object when calling virtual fns.
    The above.
    (baseclass_addr): Add valuep arg.

    * README:  Document the current state of BFD config (missing).
    * TODO, ChangeLog, Makefile.dist: Roll version.
    * WHATS.NEW: Add summary of changes since 3.5.

Thu Sep 27 16:23:12 1990  John Gilmore  (gnu at cygint)

    * dbxread.c (read_struct_type): Clear bit vectors whenever
    we allocate one.
    symtab.c (B_CLRALL): define.

    * tm-sparc.h (STORE_RETURN_VALUE): Avoid clobbering types by
    using == rather than =.  Huh...  This fixes the dreaded problem
    wherein builtin_type_int becomes TYPE_CODE_FLT.

    * core.c (info_files): Show the inferior pid.

    * config.gdb: Avoid putting "dir" command into .gdbinit.  GDB
    already knows how to look in the source directory.

    * Remove psymtab hair from many places.  Remove duplicated code
    for searching symbol tables.  Hide psymtabs from most places.
    Make it fast to get from a psymtab to its symtab.

    blockframe.c (blockvector_for_pc): Remove psymtab hair.
    coffread.c (psymtab_to_symtab): Rename to psymtab_to_symtab2.
    mipsread.c (psymtab_to_symtab): Rename to psymtab_to_symtab2.
    dbxread.c: export psymtab_to_symtab, make it work if called N times.
    (psymtab_to_symtab): Rename to psymtab_to_symtab2.  Initialize
    new symtab completely.  New psymtabs get symtab pointer
    initialized to zero.  Remove MI warning printf.
    symtab.h: Comments.  Add psymtab to symtab pointer.
    (PSYMTAB_TO_SYMTAB): New macro.
    symtab.c: use PSYMTAB_TO_SYMTAB.  Add psymtab_to_symtab and export it.
    source.c: use PSYMTAB_TO_SYMTAB.  Remove symtab version and
    compilation fields.
    stack.c (backtrace_command): Avoid pre-pass to read symbols, if
    verbose is not set.
    (print_frame_info): Avoid special-casing symbols that have not yet
    been read in.

    * source.c (open_source_file): Quick path if we have already
    located the source file by its full name.

    * symtab.c (lookup_symbol): Use find_pc_symtab rather than
    find_pc_psymtab.  When a name is found in the misc function
    vector, search the symbol table for its mangled name, not the
    name that the user typed.

    * bfd.h: Fix missing comment terminators, make #endifs match.

    * valarith.c (value_less): Handle unsigned int comparisons.
    Add FIXME about pointer compares, which assume host and target
    pointers are the same.

    * command.c (do_nothing_command): lint
    dbxread.c: lint.  Remove sort_syms.  Document C++ visibility info,
    fix comments on debug symbol format for visibility.  Actually set
    visibility of symbols.
    main.c (echo_command): lint; use <readline/history.h>.
    tm-sparc.h (FRAME_FIND_SAVED_REGS): lint
    obstack.h (_obstack_blank): Rearrange pointer math to avoid
    pointing past end of allocated memory; saber complains.
    obstack.h: Declare the external functions that we use.
    valarith.h: use <string.h>
    solib.c (solib_add): lint.

Fri Sep 21 17:05:19 1990  John Gilmore  (gnu at cygint)

    * main.c (initialize_main):  Default info_verbose to off, now that
    symbol reading is fast.
    (quit_command):  Avoid clobbering exec_bfd while quitting.

    * Initial BFD (binary file diddling library) merger:
    coffread.c: Change AOUTHDR to struct exe_hdr.
    dbxread.c: ditto.
    core.c: initialize initialized data at compile time.
    (core_file_command):  Move from coredep.c, convert to bfd.
    (xfer_core_file): Convert to bfd.
    exec.c (exec_file_command): use bfd routines.
    gdbcore.h: BFD.
    mips-tdep.c: Remove exec_file_command and friends.
    source.c: bfd.

    * coredep.c: (fetch_core_registers) Convert core_file_command to
    fetch_core_registers.
    mips-xdep.c, sparc-xdep.c, sun3-xdep.c: ditto.

    * utils.c: (error): Bogus crap, FIXME, to print bfd errors.
    (my_bfd_read): More bogosity, which I don't think we call.
    (program_name): Remove this atrocity asap!

Wed Sep 19 13:36:41 1990  John Gilmore  (gnu at cygint)

    * From Per Bothner:
    values.c: allocate_repeat_value was not clearing the
    optimized_out field.
    (value_static_field): minor stylistic fix (wrong macro was used).
    valops.c (value_struct_elt_for_address): didn't work for C++
    static fields.

    * signame.c (_initialize_signame):  Initialize signal names once.

    * breakpoint.h, command.c, copying.awk, defs.h, environ.c,
    exec.c, frame.h, infcmd.c, inferior.h, main.c, munch, sun3-xdep.c,
    symtab.h, tm-29k.h, valprint.c, value.h, values.c:  Lint.

    * remote-eb.c:  Support user-settable baud rates on the serial port.

    * tm-sun3.h (PREPARE_TO_STORE): fix typo.

Fri Sep 14 13:28:29 1990  John Gilmore  (gnu at cygint)

    * tconfig/sun3os4: Remove warning about native assembler,
    since it also occurs in the xconfig file.

    * findvar.c (registers): Allocate some slop after `registers'
    to prevent stray accesses from trashing the next variable.

    * tm-68k.h (REGISTER_BYTES):  Allocate the right number of bytes
    on the sun-3, by changing the #ifdef from `sun3' (which is not
    defined by cc) to `sun'.  Symptom was trashed builtin_type_XXX
    vars, which happened to follow `registers' in the executable.

    * readline/history.c (history_search): Heed gcc-2's advice
    and parenthesize && inside ||).

    * am29k-opcode.h, am29k-pinsn.c, am29k-tdep.c, remote-eb.c,
    tm-29k.c:  Insert FSF copyright headers.

    * remote-eb.c:  Better comments.

    * Makefile.dist:  Update to 3.91.6.
    * TODO: note PREPARE_TO_STORE problem.

Thu Sep 13 09:52:33 1990  Jim Kingdon  (kingdon at cygint)

    * stack.c (frame_info): Only use FRAME_FIND_SAVED_REGS if defined.

    * remote.c:  Wrap the whole file in #if !defined (SPECIAL_REMOTE).

    * infrun.c (wait_for_inferior, at end): Don't set up
    prev_* if the inferior no longer exists.

    * inferior.h (CALL_DUMMY_LOCATION): New macro, to replace
    CANNOT_EXECUTE_STACK.
    valops.c (call_function): Use it.

    * tm-convex.h: Add CALL_DUMMY_LENGTH for use by PC_IN_CALL_DUMMY.

    * inferior.h (PC_IN_CALL_DUMMY): New macro.
    infrun.c (wait_for_inferior, 2 places): Use it.

    * values.c (value_being_returned): Only use
    EXTRACT_STRUCT_VALUE_ADDRESS if defined.

    * Move PREPARE_TO_STORE from xm-sun3.h to tm-sun3.h to do the
    right thing for remote-eb.c.

    * sun3-xdep.c:  Remove extraneous call to remote_store_registers.
    * sun386-xdep.c, hp300hpux-xdep.c, sparc-xdep.c:  Ditto.

    * blockframe.c:  Put get_frame_saved_regs inside #if !defined
    (FRAME_FIND_SAVED_REGS).

    * findvar.c ({fetch,store}_registers): Check for
    REMOTE_{FETCH_STORE}_REGISTER macro.

    * findvar.c (get_saved_register): Add argument lval and
    change meaning of argument addr.
    findvar.c:  Change calls to get_saved_register to reflect
    new calling convention.
    valops.c (value_assign): Use get_saved_register instead of
    find_saved_register.

Sun Sep  2 12:40:20 1990  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * coffread.c (read_one_sym): Make temp_aux an AUXENT, not
    an (uninitialized) pointer to one.  Use "&" when passing it
    to fread.

Fri Aug 31 22:57:54 1990  Jim Kingdon  (kingdon at cygint.cygnus.com)

    * coffread.c (getfilename): Use DGUX x_offset and x_name if
    defined.

    * coffread.c (symbol_file_command): Put semicolon after
    "int from_tty".
    Put safe_to_init_tdesc_context in #if defined (TDESC).
    Put #ifdef TDESCs in 1st column for non-ANSI cpp's.
    coffread.c: #include <sys/stat.h>.
    (read_coff_symtab): Typo: in_source_files -> in_source_file.
    Add missing ')' in check for "lc%" and friends.  Remove
    extraneous '}'.
    Declare read_one_sym() at top of file.
    (read_file_hdr): Put in extra #ifdefs so MC68MAGIC and
    MC68WRMAGIC can have the same value without causing a duplicate
    case.

Thu Sep 13 15:55:36 1990  John Gilmore  (gnu at cygint)

    * Allow a Makefile to be built without building the
    tm and xm file links that screw up builds in subdirectories.
    This is done with `config.gdb none', then you can do things
    like `make gdb.tar.Z'.
    * tconfig/none: Config file for no target system
    * xconfig/none: Config file for no host system
    * config.gdb: If no TM or XM files are called out by the
    host or target file, don't make links for them.

    * cplus-dem.c: Add documentation.

    * dbxread.c (read_ofile_symtab): Turn a fatal error into a
    simple error, so the user's gdb doesn't crash due to some object
    file problem (e.g. somebody is rebuilding the file out from under
    gdb).

    * printcmd.c (print_address_symbolic): demangle the symbol.

    * Makefile.dist (OTHERS): Remove tdesc-lib because it has
    Motorola copyrights in it.  Make "make gdb.tar.Z" work.
    (alldeps.mak): sort and uniq all results from this; duplicates
    hose gdb.tar.Z link building.  Remove RCS files from
    tconfig and xconfig.  Add config files for sun386.  Add
    a few odd files to OTHERS and HFILES.

Mon Sep 10 21:20:24 1990  John Gilmore  (gnu at cygint)

    * Makefile.dist: Pull solib.c to tconfig/sun?os4.
    Roll version number to 3.91.5.  Make lint work in bindir.

    * README:  Document cross-debugging and new file structure.

    * blockframe.c: Lint.  Include "value.h" to declare read_register.
    (find_pc_partial_function): remove duplicate line.

    * command.h: Lint.  Declare error_no_arg and dont_repeat.

    * tm-news.h: Remove inadvertently duplicated stuff.

    * mipsread.c: Remove cache_pc_function stuff, now done cleanly.
    Clean up usage of misc_function_type.  Declare some CORE_ADDRs.

    * config.gdb: Allow `config.gdb host target' form.  Clean
    up previous change that printed bogus messages when you just said
    `config.gdb'.

    * core.c: #include "command.h" for lint.
    * dbxread.c: lint
    * eval.c: lint
    * main.c: Remove some casts of enums.  Lint.
    * source.c: lint
    * symtab.c: lint
    * symtab.h: lint
    * expread.y: lint
    * valarith.c: lint

    * printcmd.c (initialize_printcmd): Fix thinko in inspect cmd.

    * sparc-tdep.c (isannulled): Take instruction as parameter, don't
    read it from memory.  This will allow us to save ptrace calls
    eventually.   Changed caller single_step too.

    * sparc-xdep.c (fetch_inferior_registers): Avoid reading regs
    that we aren't going to use, saving many ptrace calls, especially
    when watchpointing or single stepping.  Use some #define's for
    constants.
    (store_inferior_registers): Ditto.
    (core_file_command): Use some #define's for constants.

    * tm-sparc.h: Add #define's for some register numbers, so we
    can eliminate the use of random constants in sparc-xdep.c.

    * stack.c (frame_command, print_frame_info, up_command,
    down_command) Remove frame_changed, since it
    causes a bug and doesn't seem to do anything useful.  In some
    places it was used as a flag, in others as a stack level (?).

    * utils.c: Use MISSING_VPRINTF rather than HAVE_VPRINTF, so the
    default is to use the portable (vprintf) version rather than the
    kludge version.
    * xm-news.h (MISSING_VPRINTF): Add.

    * valprint.c (val_print): Demangle fancy vtbl printouts.  Lint.

Sat Sep  8 00:24:12 1990  John Gilmore  (gnu at cygint)

    * Remove stuff that forces -Bstatic linking of gdb, and warnings
    about linking debugged programs -Bstatic in the sun?os4 config
    files in tconfig and xconfig subdirectories.

    * main.c (main):  Remove unreached exit(0) now that we exit
    via quit_command().

    * Create TODO file for online bug list.  There are too many
    "little" bugs to keep track of on paper.

    * Change Projects file to refer to [e-mail]
    rather than kingdon@ai.

Fri Sep  7 23:35:15 1990  John Gilmore  (gnu at cygint)

    * Makefile.dist (VERSION): 3.91.4 now.

    * symtab.c (init_misc_bunches): Rename from init_misc_functions.
    (condense_misc_bunches): Add sanity check that misc_count is
    the same as the number of symbols in the bunch.

    * coffread.c: rename init_misc_bunches.  Pass an argument
    to condense_misc_bunches (a zero).

    * dbxread.c (partial_symbol_file_read): Call init_misc_bunches
    every time we are called; don't rely on our caller to do it.
    (add_file): Remove call to init_misc_bunches.

    * mipsread.c: Only warn, don't error, if unknown symbol types.
    This keeps an old gdb from falling on its face if it sees newly
    extended symbol info.  Rename init_misc_bunches.

Fri Sep  7 22:58:15 1990  John Gilmore  (gnu at cygint)

    * Merge in changes from Per Bothner for DECstations and other
    MIPS stuff.  The rest is Bothner speaking:

    The next message is a merger of Alessando Forin's mips port with
    mine.  I've tried to use my good if biased judgment to get
    the best of both. It *does* need testing.

    Some of the changes are general, *not* mips-specific.

    param.h:
    Didn't believe in little-endian bit order.
    There are still inconsistencies about whether flags
    like BITS_BIG_ENDIAN are integer (#if ...) or
    boolean (#ifdef ...). I tried to paper over them.

    dbxread.c,coffread.c,mipsread.c,symtab.c,symtab.h:
    Moved some misc_function code that was common to
    {dbx,coff,mips}read.c to symtab.c.
    In the process, I think I cleaned things up a bit.
    At the same time, moved obsavestring and obconcat to symtab.c.

    dbxread.c:
    Removed obsolete condense_addl_misc_bunches (use
    condense_misc_bunches(1) instead).

    exec.c:
    Needed to include <sys/dir>, at least on DECstations.

    valops.c, mips-tdep.c, tm-mips.h:
    Added PUSH_ARGUMENTS macro to support funny argument-pushing
    conventions (when STACK_ALIGN is insufficient).
    Needed on mips, where doubles need 8-byte alignment,
    but ints only need 4.

    mips-opcode.h:
    Removed cruft that was not being used.
    Merged in many fixes (most from Frank Yellin, [e-mail]).

    mips-pinsn.c:
    Print $ before register-names (I think that makes things a little
    more consistent).
    Never print two instructions, even if one delays.
    Removed hex-disassemble set_cmd.  (This is not mips-specific,
    so I think the argument is whether it is generally worthwhile or not.
    I'm inclined to think not, given how easy it is to
    convert between radixes in gdb.)

    mipsread.c:
    This is basically Alessando's code.
    It doesn't use obstacks; I changed it to use obstacks
    in a few minor places where using malloc causes a
    memory leak. (Probably, more places could/should be changed.)
    I added record_misc_function where it was missing.
    In symbol_file_command and add_file_command, I tried
    to make the code consistent with more recent versions.
    Minor sylistic changes in parse_procedure.
    Make a .gdbinfo. psuedo-symbol point back to the real
    procedure symbol (using the isym field).

    mips-tdep.c:
    This is basically from my port, but with a lot of details
    and a number of routines merged in from Alessando's version.
    I basically used my code "raw" backtrace (use heuristics
    from the actual code, rather than symbol table info) - though
    the idea is Alessandro's. I feel my code is a little cleaner
    here, particularly in being a little more flexible, such as being
    able to handle gcc-produced code (which it now can).
    It also doesn't do frame caching (which is not useful
    more recent gdb versions).
    I also used my code for push_/pop_dummy, more or less.
    I tried to incorporate AF's code for testing sigtramp
    while backtracing; I probably got it wrong.
    Added mips_print_register, which tries to scrunch as much
    information as possible on a screen...
    Removed the skip-prologue set_cmd. As with hex-disassemble (see
    under mips-pinsn.c), I don't see anything mips-specific here,
    and I don't see it being all that useful anyway.

    tm-mips.h:
    Added a $fp psuedo-reg distinct from $fp (nice for gcc).
    Use more register names (rather than hard-cases numbers).

Thu Sep  6 18:33:15 1990  John Gilmore  (gnu at cygint)

    * Hack up 3.90.11 changes:

    * Makefile.dist (depend): parameterize $(GCC).
    Add solib.c and solib.o.
    (readline): Fix vpath for both absolute or relative SRCDIR.

    * blockframe.c: Fix from [e-mail] for shared libs.
    Also, let the part I didn't understand at least compile so
    I can test the rest.  FIXME.

    * dbxread.c: Fix thinko using strcmp.
    (init_psymbol_list): declare static.
    (partial_symbol_file_open): Comment cleanups better, avoid
    cleaning up the string table since the caller will do that.
    Move the stat for mod time into symbol_file_command, temporarily.
    (There should be a mod time for each symbol file, eventually,
    to control its rereading.  FIXME.)

    * infptrace.c (PT_WRITE_D): use same value as PT_WRITE_I for
    SunOS, which gives error for shared libs otherwise.  (From
    Schaefer, probably FIXME needs work for portability.)

    * solib.c:  Move #include "param.h" to work.
    Lowercase all the Uppercase Letters In the Messages.
    (find_solib): Clean up inferior_so_name for debug printouts.
    Allow no argument, to mean all shared libraries.

    * symmisc.c: include param.h to get CLEAR_SOLIB.

Wed Sep  5 18:00:08 1990  John Gilmore  (gnu at cygint)

    * Merge in Kingdon's changes from FSF: the diffs from 3.90.9
      to 3.90.11.  ChangeLog entries below are from this.

Wed Jun 13 09:17:39 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * Version 3.90.11.

    * Makefile.dist (HFILES): Add tm-sunos.h.

Tue Jun 12 16:15:26 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.10.

    * Makefile.dist (gdb.tar.Z): Change linking of config so it works.

Thu Jun  7 16:22:27 EDT 1990  Jay Fenlason ([e-mail])

    * sparc-opcode.h  Added single-operand version of rett.

Mon Jun  4 18:12:31 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * m-sparc.h (REG_STRUCT_HAS_ADDR, STRUCT_ARG_SYM_GARBAGE):
    Put parens around gcc_p in expansion.

Thu May 24 15:44:51 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * utils.c (lines_to_list): Return 10 if lines_per_page == 0.

Wed May 23 16:36:04 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Changes for Sun shared libraries:
    blockframe.c (find_pc_partial_function): If a non-text symbol
    is found, set *address = pc - FUNCTION_START_OFFSET.
    breakpoint.c (insert_breakpoints) [DISABLE_UNSETTABLE_BREAK]:
    Disable breakpoints instead of giving an error.
    source.c (select_source_symtab): Initialize cs_pst.
    symmisc.c: Call CLEAR_SOLIB if defined.
    symtab.h: Make text{low,high} CORE_ADDR not int.
    (psymtab): New field addr.
    solib.c: New file.
    dbxread.c: Move DECLARE_FILE_HEADERS outside functions.
    (record_misc_function): Give correct type for N_DATA symbols.
    (condense_misc_bunches): do "misc_function_count = j" regardless
    of inclink.
    Take code which is shared between symbol_file_command and
    add_file_command and put it into partial_symbol_file_{open,read}.
    Split add_file_command into add_file_command and add_file.
    Make psymtab_to_symtab read in the string table if the file
    is not symfile.
    Two new parameters to read_dbx_symtab and start_psymtab.
    tm-sunos.h: New file.

Tue May 22 17:43:03 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * infcmd.c: Change cont_command to continue_command and "cont"
    to "continue".

Mon May 21 14:41:41 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * breakpoint.c (enable_breakpoint): Get value of watchpoint.

    * defs.h [sparc]: Use <alloca.h> regardless of __GNUC__.

    * values.c (USE_STRUCT_CONVENTION): Check for structures of
    size 1,2,4,8 rather than size < 8.

    * dbxread.c (dbx_lookup_type): Do f->length *= 2 as many times
    as necessary, not just once.

    * sparc-opcode.h: Add a bunch of new opcodes which Sun as supports.

Thu May 17 15:04:09 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * {t,x}m-sun386.h, sun386-xdep.c, {x,t}config/sun386

    * tm-news.h: Add CALL_DUMMY_*.

    * tm-68k.h: Remove duplicate comment at FRAME_FIND_SAVED_REGS.

    * config.gdb: In list_host, list_target, use ${i}, not $i.

Tue May 15 21:27:12 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * source.c (find_source_lines) [BROKEN_LARGE_ALLOCA]: Use xmalloc.

    * sparc-opcode.h: Change all store floating-point state register
    instructions to have the right match & lose fields.

Sat May  5 12:39:18 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist: Move -I${srcdir} to GLOBAL_CFLAGS and pass
    VPATH to readline.
    config.gdb: If srcdir != ., create readline directory and
    copy a makefile into it.

    * wait.h, infrun.c: Change WRETCODE to WEXITSTATUS for
    consistency with POSIX.

    * breakpoint.c (bpstat_stop_status): Disable watchpoint
    when we exit its exp_valid_block.

Tue Sep  4 11:46:46 1990  John Gilmore  (gnu at cygint)

    * Makefile.dist: Bump version to 3.91.3.

    * Clean up handling of breakpoint commands (somewhat).
      Prompted by Tiemann bug report "cont 10" doesn't work any more.

      inferior.h: Add breakpoint_proceeded to inferior status struct
      and globals; save it and restore it.
      (clear_breakpoint_commands): Cleanup, remove old #define.

      infrun.c (clear_proceed_status): Set breakpoint_proceeded.
      (save_inferior_status, restore_inferior_status): handle it also.
      (proceed): Remove earlier code that set breakpoint_proceeded.
      It is now set only in clear_proceed_status.
      (clear_proceed_status): Cleanup, use bpstat_clear rather
      than clear_breakpoint_commands.  No callers need the stop_bpstat
      between clear_proceed_status and proceed.

      infcmd.c: Add breakpoint_proceeded definition and comment.
      (cont_command, jump_command, signal_command): Move call to
      clear_proceed_status right next to call to proceed.

      breakpoint.c (bpstat_do_actions): Avoid clobbering our
      caller's argument while running down the chain of breakpoints.
      Use new variable "breakpoint_proceeded" to determine when
      a command that it executes moves the inferior past the
      breakpoint.
      (bpstat_clear): Handle NULL argument.
      (bpstat_clear_actions): Avoid useless call to
      breakpoint_auto_delete.
      (delete_breakpoint):  Clean up bpstat's that are pointing to
      the deleted breakpoint from the stop_bpstat chain.
      (breakpoint_auto_delete): Simplify.

    * Clean up handling of EOF, error on stdin, etc.  This was
      prompted by a network problem that caused gdb to go into an
      infinite loop filling up its malloc'd memory.

      main.c (return_to_top_level): Cleanup: call bpstat_clear_actions,
      not clear_breakpoints_commands, which is now gone.
      (main): If command_loop returns (e.g. from EOF on stdin), do
      a quit_command (looping back to command_loop if quit_command
      doesn't really quit).
      (command_loop): check result from command_line_input and
      exit if it returns NULL, rather than passing the NULL to
      execute_command.
      (gdb_readline):  Free malloc'd result space before returning
      NULL for EOF.

    * utils.c (query): Handle C-d to mean "yes", just as if the
      input was not a terminal.  Also avoid infinite loop if EOF
      occurs in mid-input-line before newline.  This allows
      query to be used at EOF on stdin with reasonable results.

    * infrun.c (proceed): Set breakpoint_proceeded.

    * values.c (value_as_long): Avoid infinite recursion for enums.
      (_initialize_values): Fix typo in help msg (kingdon).

    * Makefile.dist (RL_LIB): Use RL_LIB_DEP for dependencies,
      RL_LIB for linking.  This allows -lreadline for linking
      and nothing for dependencies, once readline is a real library.

    * config.gdb: Jim Kingdon: give useful error message if the
      host or target type is not recognized.

    * defs.h (alloca): SPARC <alloca.h> does not declare alloca,
      it just defines it.  Dumb, but deal with it.

    * Jim Kingdon suggests:
      in xconfig/sun3os4, CFLAGS should be XM_CFLAGS.

Wed Aug 29 18:03:27 1990  John Gilmore  (gnu at cygint)

    * Makefile.dist (VERSION): Bump version # to 3.91.2.

    * Clean up Bothner's changes.

    * blockframe.c (clear_pc_function_cache): New function.
    * blockframe.c: remake cache_pc_function_* static.
    * dbxread.c (symbol_file_command): remove references to
            cache_pc_function_* variables.
    * dbxread.c (read_struct_type): Use VOFFSET_STATIC.
    * printcmd.c: Avoid kludging a global variable (addressprint)
      to avoid printing the address of a string twice.  Instead,
      pass the format letter 's' down low enough that it can be seen
      to avoid this problem.
      (print_formatted): Pass format arg to value_print.
      (restore_addressprint): Remove function.
      (do_examine):  Avoid hacking addressprint, cleanups and such.
      (print_frame_args):  Add a comment to a Bothner change.
    * symtab.h: define VOFFSET_STATIC and use it instead of "-1".
    * symmisc.c (free_all_symtabs): Call clear_pc_function_cache
      to wipe out the values cached in blockframe.c.
    * symtab.c (find_method): Add comment saying how big you must
      allocate to be "big enough".  Per being terse again.
    * valprint.c (val_print): Handle format letter "s" to print
      strings without addresses.  Add comment to vtbl printing code
      which casts with wild abandon.  Rearrange reference-printing
      code so it prints:
           @0xaddr: value        (print w/addressprint)
           value            (print w/~addressprint)
           @0xaddr            (parameter lists w/addressprint)
      or   nothing            (parameter lists w/o addressprint)

Tue Aug 28 10:47:18 1990  John Gilmore  (gnu at cygint)

    * Merge more changes from Per Bothner:

Gdb's handling of TYPE_CODE_REF was so counter-C++ (and otherwise
annoying) that I tried to improve it. Here are my suggestions.

    These patches all attempt to handle TYPE_CODE_REF (as in C++) better.

    findvar.c:
    Do automatic de-reference when taking the address of a reference.
    printcmd.c:
    Don't deref_ref when printing parameter lists.
    valops.c:
    More attempts at treating refernences properly.
    valprint.c:
    In val_print, if deref_ref==0, don't print dangling " = ".
    value.h:
    Add COERCE_REF macro, which de-references an REF.

    * Merge changes from Per Bothner:

* Fixed (Sony news)-specific configuration problems.
* Fixed other problems with using vanilla pcc and libc (enum problems;
assumption that vsprintf exists).
* Some major speed-ups (finc_pc_partial_function now caches a match;
parsing avoids duplicate symbol_lookup calls).
* Changed handling of baseclasses (no longer use baseclasses field
of struct type, use the first n_baseclasses fields instead).
* Various minor changes/fixes, most C++-related.

blockframe.c:
Cache the most previous match from find_pc_partial_function.
(Save both low and high ends of matching function's pc range.)
This speeds up the loop of infrun.c:wait_for_inferior quite
a bit, and makes step/next commands much zippier.
command.c:
Added an enum->int cast (otherwise, some compilers barf).
dbxread.c:
No longer set baseclass offset to 0, since multiple
inheritance now mostly works.
Added a number of casts, to shut up compiler warnings
(after stabs where made enums, not ints).
When discarding a symbol table (in symbol_file_command),
must clear the cache introduced in blockframe.c.
Don't convert $vtbl_ptr_type to vtbl any more.
Get rid of TYPE_BASECLASEES and  baseclass_vec (see also symtab.h).
Mask off sign bit emitted by g++ for virtual table offset.
Set voffset to -1 (not 1) for static member functions.
expread.y:
Changed parsing/lexing of names to avoid doing symbol lookup twice
(once when lexing to determine symbol class, once for real).
Now only call symbol_lookup once. Fields of 'this' win especially big.
printcmd.c:
Subpress printing addr twice in the case of 'x/s addr'.
symtab.c:
lookup_basetype_type is no longer used.
Add find_methods as recursive helper function to decode_line_1.
This allows multiple inheritance to work.
Also, once one or more matches has been found, do not look in
base-classes. (Baseclass methods would be overridden, anyway.)
symtab.h:
Removed baseclasses array in struct type.
Instead of using baseclasses[i], use fields[i-1].
Added virtual_field_bits[i] to indicate if the i'th baseclass is virtual.
Changed sign convention of voffset (previous was inconsistent).
tm-news.h:
Some macros (CALL_DUMMY and relatives) were missing. Put them back.
utils.c:
Used to assume existence of vsprintf. Re-written to not need it
if HAVE_VPRINTF is undefined.
valops.c:
typecmp was too pessimistic. Made it less so.
valprint.c:
Don't print space after address.
If vtable points to a misc symbol (with 0 offset), print it,
since that indicates the actual class of the object.
Changed ype_print_derivation_info to use new inheritance
scheme (without baseclasses vector).
values.c:
In value_primitive_field, fixed some bugs left over from previous set of fixes.
Also, changes needed because TYPE_BASECLASSES were removed.
xm-news.h:
REGISTER_U_ADDR didn't work for PC. Rewrote to use an array.

Tue Aug 21 20:08:54 1990  John Gilmore  (gnu at cygint)

    * source.c:
  If there is no path set, and the symbols don't indicate what directory
  a file was compiled in, look in the current directory.  But either
  a path or a known compilation directory will prevent this.

    * dbxread.c:
  Three independent bug fixes:
   * Remove the #if 0 block that breaks some stuff.
   * SunOS 4.1 fixed the promoted-parameter-wrong-addr bug in Sun C;
     adapt gdb to either SunOS 4.0.* or 4.1.
   * MAX_OF_TYPE and MIN_OF_TYPE thinko.  By tedg@sun, I think.

    * symtab.c:
  Instantiate the class T when looking for methods in it.  (Tiemann@sun)

    * valprint.c:
  (type_print) Demangle the name being printed.
  (type_print_base) Handle botched demangling without coredump (tiemann).

    * values.c:
  (check_stub_method):  Document routine.
            (tiemann) fix bug for no-arg functions
            Avoid clobbering beyond end of malloc'd storage.
            Terminate the argument list properly.

Sat Aug 18 01:29:59 1990  Per Bothner ([e-mail])

    * Changes merged by John Gilmore:

breakpoint.c:
  In breakpoint_1, use new print_address_symbolic instead
  of find_pc_partial_function. (This forces use of assembler-level
  addresses, and avoids misleading non-mangled source-level names.)
cplus-dem.c:
  Generalize ansi argument such that -1 means skip arglist totally.
  Removed global variable print_ansi_qualifiers (which made
  code non-reentrant), in favor of extra explicit arguments
  to internal routines.
printcmd.c:
  Add new helper function print_address_symbolic.
  Use find_pc_misc_function instead of find_pc_partial_function
  (since we want assembler-level symbols here).
stack.c:
  Print unknown function as just "f (...)", not "f (...) (...)".
  Use new fputs_demangled explicitly.
symtab.c:
  Fixed a typing violation (problem: value.h cannot be imported
  without renaming many variable in this file).
  lookup_symbol: If no matching misc_func, look for a C++-mangled name.
  decode_line_1: Moved forward some never-reached code.
  Made decode_line_2 skip function prologues correctly.
utils.c:
  fputs_filtered should not demangle by default.
  Add new fputs_demangled to demangle on demand..
valops.c:
  Change value_struct_elt to use value_primitive_field (using recursive
  utility function search_struct_field). This allows foo.bar to work
  for multiple inheritance (so far only for data fields).
  Change check_field in the same way (recursive helper function
  to support multiple inheritance).
  (Note: there are more of these problems that I haven't fixed.
  Any code that says TYPE_BASECLASS (t, 1) is probably wrong.)
  value_of_this: 'this' symbol name is now just "this", note "$this".
valprint.c:
  Don't print static members.
  Avoid printing "members of <type>" if there are none.
  Simplified type_print_derivation_info by merging duplicate code.
  Remove useless blank lines in type_print_base (ptype command).
value.h:
  Added declaration of new routine value_primitive_field.
values.c:
  Added value_primitive_field which is generalized version of
  value_field that can handle multiple inheritance (non-zero offsets etc).
  Re-implemented value_field to call value_primitive_field.

Fri Aug 17 23:33:44 1990  John Gilmore  (gnu at cygint)

    * infcmd.c -- insert else to avoid 'delete env' coredump when you
    delete the whole environment.  Karl Berry reported the bug.
    * source.c - fix openp to avoid //'s in filenames, which
    trigger an Emacs bug causing it to not be able to find files
    when running gdb in a window.
    * dbxread.c - zap the #if 0 that botches the add-file code.
    It seems to work a lot better without all the code commented out.

Fri Jul 20 16:58:46 1990  John Gilmore  (gnu at cygnus.com)

    * Merge Tiemann's and Ted Goldstein's changes, detailed below,
    into gdb-3.90.9.

Tue Jul 17 19:34:33 1990  Ted Goldstein  (tedg at golem)

    * Makefile - added a ${CFLAGS} to a couple of entries,
    added remote-sa.sparc.c
    * added remote.sa-sparc.c, a modification of remote.c
    which conducts a dialog directly with the SparcStation prom.
    * breakpoint.c, infrun.c, sparcdep.c  added
    remote_insert_breakpoint(), and remote_remove_breakpoint()
    to breakpoint.c instead of directly writing breakpoint instructions.
    * sparcdep.c on remote_debugging,there is no need
    to remove signle step breakpoint instructions.
    * main.c added "-epoch" flag and "int epoch_interface" to main.c
    global variable
    * printcmd.c - epoch interface sends lisp expressions to open up
    epoch windows on inspection.
    * valprint.c - added arrayprint, and addressprint and made adding
    format controls easier
    * wait.h added a couple of undef's because we were getting
    complaints about WSTOPSIG and WTERMSIG begin redefined.


Wed Jul  4 05:27:51 1990  Michael Tiemann  (tiemann at masham)

    * symtab.c (decode_line_1): Add support for handling method stubs
    in the type information.

Tue Jul  3 09:39:18 1990  Michael Tiemann  (tiemann at masham)

    * values.c (baseclass_addr): Run loop from INDEX+1 to
    N_BASECLASSES; otherwise, we can still get into a loop.
    @@ This should be restructured to use a cleaner search strategy.

Sun Jul  1 12:28:51 1990  Michael Tiemann  (tiemann at masham)

    * dbxread.c (define_symbol,read_type): Grok GNU C++'s new
    abbreviation "Tt" for tags which have the same name as their
    typedecls.

Fri Jun 29 01:03:46 1990  Michael Tiemann  (tiemann at masham)

    * symtab.c (list_symbols): add ability to set breakpoints on all
    the functions which match a particular regular expression.

Tue Jun 26 04:26:29 1990  Michael Tiemann  (tiemann at masham)

    * cplus-dem.c (cplus_demangle): New parameter ANSI says whether we
    should print ANSI qualifiers (such as `const' and `volatile').
    All callers changed to call with ANSI == 1, except from
    `check_method_stub', which uses old-style syntax.

    * symseg.h (struct fn_field): Remove unneccessary `args' field.
    * symtab.h (TYPE_FN_FIELD_ARGS): Redefined.

    * values.c (check_stub_method): New function.

    * cplus-dem.c (do_type): Handle "long long" (encoded as 'x').

    * dbxread.c (read_type): Handle new GNU C++ method type stubs.
    * valprint (type_print_base): Ditto.

    * symtab.c (gdb_mangle_typename): New function.

Tue Jun  5 00:18:43 1990  Michael Tiemann  (tiemann at gzilla)

    * breakpoint.c (catch_command): New function.  Provides a
    mechanism to set breakpoints based on catch clauses.
    (disable_catch): Similar, but disables breakpoints on catch
    clauses.
    (delete_catch): Similar, but deleted breakpoints on catch clauses.

Sun Jun  3 22:54:08 1990  Michael Tiemann  (tiemann at gzilla)

    * blockframe.c (blockvector_for_pc): New function.
    * blockframe.c (block_for_pc): Changed to call
    `blockvector_for_pc' and get the block itself.

    * stack.c (catch_info): New function.  Prints info about
    exceptions which can be caught in the current frame.
    * stack.c (print_frame_label_vars): New function.  Similar to
    `print_frame_local_vars'.
    * stack.c (print_block_frame_labels): Prints out labels that are
    defined in this frame.  These labels are exceptions that can be
    caught.

    * dbxread.c: Updated to handle N_CATCH symtab types.

Thu May  3 22:10:00 1990  Michael Tiemann  (tiemann at teacake)

    * valprint.c (everywhere): TYPE_NAME (TYPE) no longer comes in the
    form "struct ..." for GNU C++.  Don't flush any part of TYPE_NAME
    when printing the type.

Wed May  2 22:43:04 1990  Michael Tiemann  (tiemann at teacake)

    * valprint.c (val_print): Use `baseclass_addr' to access the
    baseclasses pointed to via the derived class object at VALADDR.

    * values.c (baseclass_addr): New function.  Casts derived pointers
    to baseclass pointers taking virtual baseclasses and multiple
    inheritance into account.

Sat May  5 12:39:18 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.9.

Fri May  4 12:12:55 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * breakpoint.c (watch_command, bpstat_stop_status): Deal with
    exp_valid_block field correctly.

    * infrun.c (wait_for_inferior): When checking "don't even think
    about breakpoints" if stop_signal == SIGTRAP && trap_expected,
    also check step_resume_breakpoint.
    Insert breakpoints and continue (not step) if
    step_resume_break_address != NULL, even if another_trap.
    If trap_expected and we enter sigtramp, then set up a
    step_resume_break.
    If trap_expected is set when we hit the step_resume_break,
    set another_trap.
    When calling resume and trap_expected says tell resume to step
    (2 places), also check step_resume_break_address.

    * infrun.c (wait_for_inferior): Don't set
    prev_{pc,sp,func_{start,name}} before calling wait ().
    Do set them after exiting loop.
    Move their declarations outside functions.
    (start_inferior): Initialize them.

Thu May  3 00:15:11 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * infrun.c (wait_for_inferior, after check for trap_expected > 1):
    Restore old code which distinguishes between trap_expected and
    running_in_shell, just make the latter take any non-TRAP signal,
    not just SEGV.

    * values.c (allocate_value): Zero VALUE_OPTIMIZED_OUT flag.

    * Makefile.dist (pinsn.o): Use PINSN_CC to compile.
    xconfig/3b1 (CC,PINSN_CC): Define.

    * xconfig/altos, altos-dep.c: Rename altos-dep.c to altos-xdep.c.

    * Version 3.90.8

    * breakpoint.c (bpstat_stop_status),
    infrun.c (wait_for_inferior) [SHIFT_INST_REGS]: New code.

    * param.h, tm-88k.h: Define ADDR_BITS_*.
    infcmd.c (jump_command, read_pc), infrun.c (wait_for_inferior),
    printcmd.c (do_one_display): Use them.

    * utils.c: Split #ifdef USG into a USG_UTILS and a QUEUE_MISSING.
    xm-88k.h: Define USG_UTILS.

Wed May  2 00:05:33 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * printcmd.c (printf_command) [__INT_VARARGS_H]: New code.
    (printf_command): Add from_tty parameter.

    * valprint.c (value_print): Check VALUE_OPTIMIZED_OUT flag.

    * value.h: Add optimized_out field and change lazy field to
    char.  Add macro VALUE_OPTIMIZED_OUT.

    * i386-pinsn.c: Change from Eirik Fuller to write to stream directly
    instead of stuffing things in buffers (oappend, etc).

    * breakpoint.c (bpstat_do_actions): If *BSP is set to NULL by
    execute_command, exit both loops.

    * Makefile.dist: Don't set TARGET_ARCH.  Add .c.o rule.

Tue May  1 17:07:23 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist (RAPP_OBS, rapp),
    rgdb.c, rserial.c, rudp.c, serial.c, udp.c, xdep.h,
    remote.h: Added.
    m68k-xdep.c, coredep.c: Wrap in #if !defined (RDB).

    * valops.c (value_struct_elt), values.c (value_static_field):
    Change error messages to remove references to `info methods'.

Tue Apr 24 10:25:10 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * More 88k changes:
    infrun.c (start_inferior): Add START_INFERIOR_HOOK.
    infcmd.c [SHIFT_INST_REGS]: New code.
    findvar.c (read_relative_register_raw_bytes): Return a value.
    infcmd.c (do_registers_info): Check value from
    read_relative_register_raw_bytes.

    * command.c (delete_cmd): Free the struct cmd_list_element(s)
    we are removing.

Mon Apr 23 10:42:21 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * More 88k changes:
    findvar.c (get_saved_register): New function.
    findvar.c: Rewrite code which called find_saved_register to
    call get_saved_register instead.

Sun Apr 22 14:47:51 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * valprint.c (val_print): Change error message printed when
    the type has TYPE_FLAG_STUB set.

    * valprint.c (val_print): Check for TYPE_CODE_UNDEF.

    * findvar.c (write_register): Set register_valid (regno).

    * valops.c (call_function): Check for NULL return from block_for_pc.

Fri Apr 20 11:31:23 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * findvar.c (write_register): Add PREPARE_TO_STORE.
    {sun3,sparc,symmetry}-xdep.c (PREPARE_TO_STORE): Add.
    infptrace.c, {mips,pyr,symmetry,sun3,arm,hp300hpux}-xdep.c
    (store_inferior_registers): Don't call read_register_bytes.
    symmetry-xdep.c (store_inferior_registers):
    #if 0 out code to fetch registers.

    * values.c (value_as_long): Call COERCE_ARRAY.

    * tm-sun3.h: Include tm-68k.h not m-68k.h

    * sparc-tdep.c (single_step): Set next_pc, npc4 within
    if (!one_stepped), not outside it.

    * Changes from Data General for 88k:
    * coffread.c (read_file_hdr): Add *88*MAGIC.
    * coffread.c (have_symbol_file_p): New function.
    * coffread.c [COFF_CHECK_X_ZEROES] [TDESC]: New code.
    * coffread.c (read_one_sym): If there is more than one
    aux entry, don't give an error message, just ignore the
    extra ones.
    * coffread.c (process_coff_symbol): Replace clipper with
    BELIEVE_PCC_PROMOTION in #ifdef's.
    * coffread.c: Define L_LNNO32 if not defined.
    (enter_linenos): Use it.
    * blockframe.c: Add INIT_FRAME_PC hook and use it in
    get_prev_frame_info.
    m-m88k.h: Use INIT_{FRAME_PC,EXTRA_FRAME_INFO} to do tdesc stuff.
    Use dummy versions of FRAME_CHAIN_*.
    * Makefile.dist, xconfig/i386*: Rename M_CLIBS to XM_CLIBS and add
    TM_CLIBS and CDEPS.
    tdesc/libdc.o: New target.
    tdesc.{c,h}, tdesc/*, {t,x}config/m88k: New files.

Thu Apr 12 15:47:00 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * m68k-opcode.h (bras, bsrs): Use "Bw" not "Bg".

Tue Apr 10 20:50:25 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.7.

    * xm-mips.h (BYTE_ORDER): If not defined, make it LITTLE_ENDIAN.

    * mips-xdep.c ({fetch,store}_inferior_registers): Remove variable
    offset and just use register_addr (regno, 1).
    (core_file_command): Remove variable reg_offset and just use
    register_addr (regno, 0).

    * gdbcore.h [COFF_FORMAT]: #undef a_magic before redefining it.

    * infrun.c ("if (trap_expected && stop_signal != SIGTRAP)", near end
    of wait_for_inferior): Always pass 0 as first arg to resume.
    #if 0 out "SIGSEGV in shell" test right above it (now redundant).

    * i386-pinsn.c (oappend_address): New function.
    (oappend): Make it "static void" and declare at top of file.
    (OP_J, OP_DIR): Use oappend_address.

Mon Apr  9 15:22:09 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * mips-xdep.c: Include <mips/inst.h> not "mips/inst.h".

    * wait.h [HAVE_WAIT_STRUCT]: Put #defines in #if !defined so that
    it's OK if they are defined in <sys/wait.h>.

    * findvar.c (fetch_registers): Pass "registers", not "®isters",
    to remote_fetch_registers.

    * mips-tdep.c (_initialize_mipsdep): Remove hex_disassembler
    and re-write skip_prologue to use add_set_cmd.

    * Makefile.dist (alldeps.mak): Don't put \ after the last
    filename in each list.

Sun Apr  8 01:59:19 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.6.

    * Makefile.dist (alldeps.mak): "XM_FILE" -> "XM_FILE=".

    * valarith.c (value_x_{un,bin}op): use "operator" not "operator "
    to match dbxread.c change of 16 Mar 90.

    * valarith.c (value_x_unop): Pass &static_memfuncp,
    not static_memfuncp.

    * breakpoint.c: Add watchpoint stuff.
    breakpoint.h: Add bpstat_should_step.
    infrun.c (proceed, wait_for_inferior): Use it.
    breakpoint.h: Add bpstat_print (and rename old bpstat_print
    to bpstat_should_print).
    infrun.c (normal_stop): Use it.

    * value.h: Add value_free.  Declare a few functions.

Sat Apr  7 21:43:43 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c (read_dbx_symtab): Remove PROFILE_TYPES code and
    insert comment suggesting easy shell script equivalents.

    * values.c (unpack_long): Give better error messages for
    unrecognized sizes of ints and floats.

Fri Apr  6 00:32:21 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c, gdbcore.h (IS_OBJECT_FILE): Check for a_drsize
    nonzero as well as a_trsize.

    * More places: Use SWAP_TARGET_AND_HOST.

    * valops.c (destructor_name_p): Only skip "struct " if present.

    * main.c (gdb_readline): Return NULL on end of file.

    * sparc-opcode.h: Add jmp 1+2, jmp 1+i, jmp i+1.

    * Makefile.dist: Make expread.tab.c unambiguously be in srcdir.

    * main.c: Split source_command into source_command and
    read_command_file.
    (main): Accept "-" as arg to +command for stdin.

    * dbxread.c (psymtab_to_symtab): Don't read string table.
    (symbol_file_command): Save string table size.

    * Version 3.90.5

    * symtab.c: Remove declaration of lookup_misc_func.

    * mips-pinsn.c: Add use_hex_p stuff (re-worked from Forin stuff).

    * mips-opcode.h: Add bdelay field.
    mips-pinsn.c: Various changes from Forin, I think to make it look
    like the MIPS assembler format.
    mips-tdep.c, mips-xdep.c, mipsread.c: Various changes from Forin.

    * gdbcore.h: Declare register_addr.

    * gdbcore.h: Include <a.out.h>, before trying to redefine N_TXTADDR
    and friends.
    various: Don't include both a.out.h and gdbcore.h.

    * Makefile.dist (HFILES): Add param.h

    * utils.c (init_malloc): Moved here from mcheck.c and modified
    to use the standard mcheck.c
    Makefile.dist: Modify to reflect new mcheck.

Thu Apr  5 16:38:28 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * valprint.c (val_print, print_hex_chars): Print integers
    larger than LONGEST.

    * valarith.c (value_sub): Give error message if attempt to
    subtract something of the wrong type from a pointer.

    * breakpoint.c (bpstat_stop_status): Initialize retval to NULL.

    * i386-tdep.c (i386_pop_frame): Change addr to adr.

Wed Apr  4 05:21:50 1990  Jim Kingdon  (kingdon at teenage-mutant)

    * main.c (command_line_input): return NULL on end of file.
    (execute_command): If p is NULL, return almost right away.
    (read_command_lines): Treat end of file like "end".

    * printcmd.c (print_frame_args): Change it so num is number
    of ints of args, not number of args.

    * xm-*.h: Make sure BYTE_ORDER is defined.
    Also fix various #includes of old names of things.

    * main.c (command_line_input): Fix comment code of 2 Apr.

    * values.c (value_from_long, unpack_long): SWAP_TARGET_AND_HOST.
    various: Replace {BYTES,WORDS}_BIG_ENDIAN with TARGET_BYTE_ORDER.
    valarith.c various: SWAP_TARGET_AND_HOST.
    dbxread.c (READ_FILE_HEADERS): SWAP_TARGET_AND_HOST.
    (SWAP_SYMBOL): New macro.  Use it wherever symbuf_idx is incremented.
    exec.c (exec_file_command): SWAP_TARGET_AND_HOST.

    * valarith.c (value_subscripted_rvalue): Just bcopy() the
    appropriate bytes rather than playing strange games with
    value_from_long.

    * param.h (SWAP_TARGET_AND_HOST): New macro.

    * tm-np1.h (V7_REGNUM): Change from 27 to 26.
    (REGISTER_VIRTUAL_TYPE): Return correct result for vector regs.
    gould-tdep.c: New file.

    * Move reading of register before store from
    findvar.c (write_register) to
    infptrace.c, *-xdep.c (store_inferior_register).

    * findvar.c (fetch_registers, store_registers): New functions.
    write_register{,_bytes}: Use store_registers regardless of
    have_inferior_p.
    registers_valid: New variable.
    (supply_register, read_register, etc.): Use it.
    (read_register_gen): New variable.
    various: Use read_register_gen rather than read_register_bytes
    where appropriate.
    *-xdep.c (fetch_inferior_registers): Remove remote_debugging check.
    infrun.c (wait_for_inferior, start_inferior): Call registers_changed
    not fetch_inferior_registers.
    *-xdep.c (fetch_inferior_registers): Call registers_fetched if
    not setting registers via supply_register, and if fetching
    all registers.
    infptrace.c, *-xdep.c (fetch_inferior_registers): Add param,
    # of register to fetch (-1 for all).
    infptrace.c, hp300hpux-xdep.c (fetch_inferior_registers):
    Actually fetch only those registers needed.
    value.h: Declare all the extern register functions from findvar.c.

    * coffread.c (read_coff_symtab): Test for specific kinds of GCC
    labels (LI%.*, LPB%.*, etc), not just ??%.*.

    * coffread.c (record_misc_function): Use mf_text not mf_unknown.

    * utils.c,defs.h (lines_to_list): New function.
    source.c (select_source_symtab, list_command, forward_search_command,
    reverse_search_command), stack.c (print_frame_info):
    Use it instead of 10.

    * munch: If MUNCH_NM variable exists, use it.

    * main.c (initialize_main): Set rl_readline_name.
    main.c: #include readline.h and #undef savestring.
    Remove declarations of things declared in readline.h.

    * main.c (gdb_readline): If instream == 0, read from stdin.

    * main.c (main): Only call clearerr if ISATTY.  Exit loop if
    feof (instream).

    * infcmd.c (detach_command): Set inferior_pid to 0 after
    calling remote_close.

    * main.c (main): If exec and sym files are the same, and there
    is an error reading execfile, don't try to read sym file.

    * infcmd.c (detach_command) [ATTACH_DETACH]: Don't try to detach
    from inferior when remote debugging.

    * source.c (reverse_search_command): Change while test from 1 to
    line > 1.

Tue Apr  3 18:14:14 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.4.

    * Makefile.dist (gdb.tar.Z): Use -z option to tar rather than
    creating gdb.tar and calling compress separately.

    * breakpoint.c (read_memory_nobpt): Do not treat bcopy as if it
    returned an "errno" value.

    * various: Make sure gdbcore.h is not included before a.out.h.

    * Makefile.dist (OPCODES): Add mips-opcode.h.

    * config.gdb: Print lists of {hosts,targets} after finding srcdir.
    When parsing +{host,target}=, strip off +{host,target}=, not +{x,t}m=.

    * Makefile.dist (gdb.tar): Do {t,x}config not just config.

Mon Apr  2 02:42:23 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * sparc-opcode.h (inc): Fix incorrect lose field.

    * valarith.c (value_subscripted_rvalue): Use TARGET_BYTE_ORDER,
    rather than checking endianness at runtime.

    * main.c (comand_line_input): Accept comments anywhere, not
    just at starts of lines.

Sat Mar 31 21:59:35 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symtab.c (check_stub_type): Call lookup_symbol with 5 args.

Fri Mar 30 15:23:52 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * frame.h: #include param.h.
    param.h: Protect against multiple inclusion.

    * i386-tdep.c (i386_get_frame_setup): Fix comment about what
    opcode 0x55 is.
    If 0x81 or 0x83 is followed by something besides 0xec,
    put codestream back where it was and return 0.
    [USE_MACHINE_REG_H]: Include <machine/reg.h> not <sys/reg.h>
    Move include of a.out.h above <sys/user.h>.
    (i386_frame_find_saved_regs): Make locals signed.
    (i386_frame_find_saved_regs, i386_push_dummy_frame, i386_pop_frame):
    Use REGISTER_BYTES, REGISTER_RAW_SIZE, etc. to deal with floating
    point registers.

Wed Mar 28 18:33:40 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * Makefile.dist (OTHERS): Add gdb.dvi.
    (gdb.dvi): New rule.

    * breakpoint.c (_initialize_breakpoint): Clean up docstrings so
    as not to mention subcommands (e.g. auto-display).
    Call add_cmd not add_abbrev_cmd for "disable breakpoint" and
    put it in class_alias.

    * breakpoint.c (set_breakpoint_count): New function.
    (set_breakpoint, break_command_1): Use it.

    * breakpoint.c (get_number): New function.
    (*_command, map_breakpoint_numbers): Use it.

    * infptrace.c (write_inferior_memory): Remove remote_debugging
    stuff (is handled in core.c).
    (read_inferior_memory): Remove #if 0'd out remote_debugging code.

Tue Mar 27 16:51:27 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * inferior.h: Include frame.h.

    * findvar.c (write_register): Replace sun4 #ifdef with
    check of CANNOT_STORE_REGISTER.
    xm-sparc.h: Define CANNOT_STORE_REGISTER.

    * sparc-tdep.c: Remove superfluous declaration of
    get_breakpoint_commands.

    * breakpoint.{c,h}: Add bpstat stuff.
    bpstat_do_action: Re-work do_breakpoint_commands into this.
    main.c (command_loop): Call bpstat_do_action not
    do_breakpoint_commands.
    inferior.h, infrun.c, breakpoint.c, infcmd.c:
    Rework breakpoint_commands and stop_breakpoint
    stuff to use bpstat instead.

    * infcmd.c (program_info): "info reg"->"info registers".

    * np1-opcode.h: Renamed from npl-opcode.h.
    gould-pinsn.c: Include np1-opcode.h.
    Makefile.dist (OPCODES): Change npl-opcode.h to np1-opcode.h

    * coffread.c (read_enum_type): Stop reading when we hit .eos.

Mon Mar 26 15:52:35 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Version 3.90.3.

    * breakpoint.c (read_memory_nobpt): New function.
    gdbcore.h: Declare read_memory_{nobpt,check}.
    mips-tdep.c: Use read_memory_nobpt not breakpoint_shadow_val.

Fri Mar 23 14:26:38 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * inflow.c (terminal_inferior): Reenable commented out
    inferior_thisrun_terminal check.
    (terminal_ours_1): If inferior_thisrun_terminal is nonzero,
    return immediately.

    * Makefile.dist: Rewrite DEPFILES, M_FILE, etc. stuff to deal
    with host & target separation.

    * config/*: Split into xconfig/* and tconfig/*.
    *-dep.c: Split into *-xdep.c and *-tdep.c.

    * main.c (main): Always pass two args to xrealloc.

Thu Mar 22 20:29:25 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * Makefile.dist ({,dist}clean): rm {x,t}m.h not param.h
    xgdb.o: Remove obsolete dependency (now in depend).

    * arm-pinsn.c: Include arm-opcode.h not opcode.h.

    * mips-pinsn.c, mips-opcode.h: New files from Bothner (from
    release of 24 Jan 90 with mips-opcode.h patch from 1 Feb 90).

    * utils.c (xmalloc): Return NULL on request for 0 bytes.

Wed Mar 21 13:30:08 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * config.gdb: Re-write machine stuff to deal with host & target.

    * xm-altos.h: Don't define HAVE_WAIT_STRUCT.

    * m-*.h: Split into xm-*.h and tm-*.h.

    * infrun.c (wait_for_inferior): Put #ifdef sony_news code
    in regardless of machine.

    * symtab.c (decode_line_1): Add quotes and capitalize error
    message "no class, struct, or union named".

    * Makefile.dist (cplus-dem.o): Compile with -Dnounderscore.

    * stack.c (print_frame_info): Use print_symbol to print function name.

    * symtab.c (output_source_filename): Don't print a comma if
    we are skipping a filename already printed.

Tue Mar 20 10:48:54 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * symtab.c (output_source_filename): Don't print a filename
    more than once.

    * utils.c (fprint_symbol): New function.
    defs.h: Decalare it.
    various: Use fprint_symbol to print symbol names.
    Makefile.dist (SFILES, OBS): Add cplus-dem.{c,o}.

Mon Mar 19 17:11:03 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * coffread.c (read_file_hdr): Add MC68K??MAGIC.

    * coffread.c (read_coff_symtab): Ignore swbeg and string label
    symbols.

    * coffread.c (read_coff_symtab): Increment num_object_files
    in case C_STAT not C_FILE.
    New variable in_source_file.  Set it in case C_FILE.
    Check it in case C_STAT.

    * coffread.c [FUNCTION_EPILOGUE_SIZE]: New code.
    m-umax.h (FUNCTION_EPILOGUE_SIZE): Define.

    * config/3b1: New file.

    * config/sun*: Print message warning people to use GAS with GCC.

Sun Mar 18 02:56:40 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * infcmd.c (run_stack_dummy): Change error message.

    * m-68k.h (REGISTER_VIRTUAL_TYPE): Make pc, fp, sp char *.

    * m-mips.h (LONGEST, BUILTIN_TYPE_LONGEST): Remove.

Sat Mar 17 21:27:49 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * mips-dep.c: Remove infptrace.c stuff.

    * m-bigmips.h: New file.
    m-mips.h [MIPSEB]: Remove *_BIG_ENDIAN stuff.

    * m-sparc.h (FIX_CALL_DUMMY): Do not insert unimp instruction
    if function was compiled with gcc.

    * m-mips.h: Remove FIX_CALL_DUMMY_ALIGNED and make FIX_CALL_DUMMY
    use new args.

    * valops.c (call_function): New args to FIX_CALL_DUMMY.
    m-*.h (FIX_CALL_DUMMY): Take new args.

    * values.c (using_struct_return): New parameter gcc_p.
    valops.c (call_function): New variable using_gcc.
    valops.c (call_function) [REG_STRUCT_HAS_ADDR]: New code.

    * m-mips.h, mips-dep.c: New files from Forin.
    m-mips.h: Replace RETURN_STRUCT_BY_REF with USE_STRUCT_CONVENTION.

Fri Mar 16 13:17:19 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist: Add some dependencies of m-*.h files.
    (HFILES): Add m-68k.h.

    * dbxread.c (read_struct_type): Put "operator+" not "operator +"
    in symtab.

    * core.c: Split read_memory into read_memory_check and read_memory.
    breakpoint.c (insert_breakpoints): If can't read memory,
    tell user that error was due to seting breakpoints.

Thu Mar 15 11:47:19 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * infrun.c [COFF_ENCAPSULATE]: Include a.out.encap.h.

    * blockframe.c (FRAMELESS_LOOK_FOR_PROLOGUE): Make it a function.
    various m-*.h: Call function not macro.
    frame.h: Declare the function.

Wed Mar 14 02:44:51 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * sparc-dep.c: Include signame.h.

    * sparc-pinsn.c (print_insn): When looking for sethi before
    delayed branch, call read_memory_noerr not read_memory.

    * m-isi.h, m-sun3.h, m-news.h, m-hp300bsd.h, m-altos.h,
    m-hp300hpux.h, m-sun2.h: Merge machine stuff except inferior
    function call stuff into new file m-68k.h.  Create m-3b1.h.

Tue Mar 13 21:34:33 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * inflow.c (new_tty): If can't open tty, print error message
    before exiting.

    * blockframe.c: Remove declaration of psymtab_to_symtab.
    symtab.h: Declare psymtab_to_symtab.
    blockframe.c: Remove declarations of block_for_pc and
    find_pc_function_start.
    frame.h: Add declarations of block_for_pc and find_pc_function_start.
    Remove declaration of nonexistent function find_pc_function.
    values.c: include frame.h instead of declaring block_for_pc.

    * Version 3.90.2.

Mon Mar 12 14:20:06 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * main.c (main): Delete superfluous "e" from long_options.

Sat Mar 10 15:47:23 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * valprint.c (val_print): Print <%d bit integer> not just
    <large integer>.

    * dbxread.c (error_type): Fix loop that finds '\0' so that on
    exit, *pp points to the '\0', not the character after.
    (read_type): Make sure that places which call read_type and then
    try to read more input stop immediately with another error
    upon encountering '\0'.

    * dbxread.c (read_range_type): Fix check for large signed
    integral type to match comment and reality.  Set TYPE_LENGTH based
    on n2bits for signed, n3bits for unsigned.

    * infcmd.c (cont_command): Print warning message if we
    decide to ignore the argument.

    * gdb.texinfo (attach): @xref{Attach} -> @xref{Remote}.

Fri Mar  9 16:26:47 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symtab.h (address_class): Reinstate LOC_EXTERNAL with rewritten
    comment.

    * expread.y (yyerror, parse_c_1): Make yyerror take a char * arg.

    * main.c (symbol_completion_function): Don't call error() on
    "info jkldskf".

    * m-npl.h (USE_STRUCT_CONVENTION): Change >= to >.

Thu Mar  8 00:19:01 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symseg.h: Nuke more symseg references including LOC_EXTERNAL.
    Put contents of    symseg.h into symtab.h and remove symseg.h.

Wed Mar  7 18:02:15 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symtab.h (SYMBOL_LINE): New macro.
    symtab.c (decode_line_1): Accept variable as well as function.
    Lookup variable/function in selected block if no file specified.
    printcmd.c: #if 0 out whereis_command.

    * command.c (do_setshow_command): Call function with additional
    argument C.
    main.c (set_history_size_command): Take argument C.
    (set_verbose): New function to set docstring.
    (initialize_main): Put set_verbose in command list.
    command.c (lookup_cmd_1): Accept result_list NULL.

    * valprint.c (_initialize_valprint): Change docstring for
    "set unionprint" to normal set/show form.

    * command.c (add_show_from_set): Check that docstring starts with
    "Set " before assuming it does.

    * main.c (show_history): Call cmd_show_list.
    command.{c,h} (cmd_show_list): New function.
    command.h: Declare do_setshow_command.

    * command.h (cmd_list_element): New field completer.
    main.c (symbol_completion_function): Use it.
    symtab.h: Declare make_symbol_completion_list.
    command.c (add_cmd): Set completer.
    main.c, gdbcmd.h (noop_completer): New function.
    infcmd.c: Set completer for environment functions.

    * symtab.c (types_info, _initialize_symtab): #if 0 out.
    various: Use fputs_filtered, not fprintf_filtered(%s).

    * valprint.c (type_print_base): Check for integers larger than
    LONGEST.

    * sun3-dep.c: Include "signame.h" instead of directly declaring
    sys_siglist.

Tue Mar  6 14:59:34 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * infrun.c (signals_info): Allow argument to be a signal name
    as well as an expression.
    (handle_command): Check for error from sig_number.

    * main.c (float_handler): Change error message.

    * inflow.c (create_inferior): If getenv ("SHELL") exists, use it
    instead of /bin/sh.

    * dbxread.c (read_dbx_symtab, case N_SO): New variable first_symnum.
    Pass it to {start,end}_psymtab.

    * dbxread.c (read_ofile_symtab): Increment symbuf_idx and symnum
    when calling process_symbol_pair.

    * symtab.c (sources_info, output_source_filename):
    Re-write so output_source_filename takes a first parameter
    instead of a next one.

    * dbxread.c (read_dbx_symtab, case N_SO): When incrementing
    symbuf_idx, increment symnum also.

    * values.c (set_internalvar_component): Use VALUE_CONTENTS,
    not VALUE_CONTENTS_RAW.

    * symmisc.c (free_symtab): Don't free filename (now in symbol_obstack).

    * environ.c (init_environ): Copy entire string, including
    terminating '\0'.

    * value.h, values.c: Rename value_lazy to value_fetch_lazy.
    values.c (value_of_internalvar): Call value_fetch_lazy.

    * dbxread.c (read_huge_number): Return an error on encountering
    a large decimal number.

    * dbxread.c (read_huge_number): Reverse sense of overflow test.

    * valprint.c (val_print, case TYPE_CODE_INT): Check for integers
    larger than LONGEST.

    * dbxread.c (read_ofile_symtab): When calling process_one_symbol,
    call it with desc and value rather than with bufp->n_{desc,value}.

    * defs.h (LONG_MAX): Define.

    * sun3-dep.c: Declare sys_siglist.

    * infptrace.c: Move include of gdbcore.h after a.out.h

    * Makefile.dist (expread.o, mcheck.o): Remove leading "./" not
    leading ".".

    * m-hp300hpux.h [!HPUX_VERSION_5]: Define KERNEL_U_ADDR_HPUX.
    infptrace.c [KERNEL_U_ADDR_HPUX] [KERNEL_U_ADDR_BSD]:
    Set kernel_u_addr using nlist().
    m-hp300bsd.h: Define KERNEL_U_ADDR_BSD.

Mon Mar  5 16:52:41 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c (read_dbx_symtab): If value of .o symbol is crazy,
    don't end psymtab.

    * dbxread.c (read_dbx_symtab): Ignore first of a pair of N_SO
    when both appear.
    (start_subfile, start_symtab): Extra parameter dirname.
    (start_subfile): Use obsavestring, not savestring, for name.
    various: Call start_{subfile,symtab} with extra argument.
    (end_symtab): Set dirname field in symtab.
    (read_ofile_symtab): Call process_symbol_pair on pair of N_SO.
    (process_symbol_pair): New function.
    symtab.h (symtab): New field dirname.
    source.c (open_source_file): New function.
    source.c: Use open_source_file instead of openp where appropriate.

    * defs.h (TARGET_CHAR_BIT): Define.

Sun Mar  4 13:11:48 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c (fill_symbuf): Print error messages nicely.

    * Makefile.dist (SFILES): Put standalone.c at end.

    * Makefile.dist (alldeps.mak): Put out backslash after arm-convert.s.

    * symtab.{c,h} (builtin_type_error): New type.
    symseg.h (type_code): Add TYPE_CODE_ERROR.
    valprint.c (val_print, type_print_base),
    values.c (using_struct_return, set_return_value):
    Check for and deal with TYPE_CODE_ERROR.
    dbxread.c (error_type): New function
    (read_type and subroutines): Call error_type instead of error.

    * dbxread.c (read_huge_number): New function.
    (read_range_type): Use read_huge_number and check results
    to see if it is a large integral type.

    * symmisc.c: Remove symseg stuff.

    * Gould NP1 changes from (or inspired by) [e-mail]
    dbxread.c (read_dbx_symtab) [N_NBSTS]:
    Treat this and N_NBLCS like N_LCSYM, etc.
    (process_one_symbol) [BLOCK_ADDRESS_ABSOLUTE]: New code.
    m-npl.h (USE_STRUCT_CONVENTION): Add.
    (IGNORE_SYMBOL): Add 0xa4.
    (END_OF_TEXT_DEFAULT): Remove.
    (STRING_TABLE_OFFSET): don't add sizeof(int).
    [!HAVE_VPRINTF]: Define vprintf to be doprnt, not printf.
    (BLOCK_ADDRESS_ABSOLUTE): Define.
    (BREAKPOINT): Pad to size of machine word.
    (SAVED_PC_AFTER_CALL): Remove ` at start of line (!).
    (R2_REGNUM): Define.
    (SP_REGNUM, FP_REGNUM): Switch definitions.
    (REGISTER_U_ADDR): Use FP_REGNUM in place of SP_REGNUM.
    (STORE_STRUCT_RETURN, EXTACT_RETURN_VALUE, STORE_RETURN_VALUE,
    call function stuff):
    Replace bogus definitions with correct ones for NP1.
    (CANNOT_EXECUTE_STACK): Define.
    (FRAME_LOCALS_ADDRESS): Don't add 80.
    (FRAME_FIND_SAVED_REGS): Also get SP.
    gould-pinsn.c (findframe): Move framechain declaration outside #if 0.
    infptrace.c (write_inferior_memory): Check addr against text_end
    and use PT_WRITE_I or PT_WRITE_D as appropriate.
    (store_inferior_registers): Don't try to write registers in
    CANNOT_STORE_REGISTER.
    m-npl.h (CANNOT_STORE_REGISTER): Define.
    npl-opcode.h (lil): 0xf8080000 -> 0xf80b0000.

    * munch: Distinguish between BSD and System V nm by actually
    seeing what output from nm looks like.

Fri Mar  2 13:43:36 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * printcmd.c (print_frame_args): Change highest_offset to point
    to next unprinted arg.

    * main.c (main): Print "type help for list of commands" along
    with the version.  Follow it with a blank line.

Thu Mar  1 14:49:26 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * valprint.c: Move print_address for function from value_print
    to val_print.

Wed Feb 28 15:06:12 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist (m-sun4os4.h): Depend on m-sparc.h

    * Makefile.dist (version.c): Depend on Makefile.dist, not Makefile.

    * Makefile.dist: Change MAKEFILES to Makefiles.

    * symtab.h: Declare get_sym_file.
    core.c: Include symtab.h.

    * Move signal name stuff from utils.c to signame.c
    Move signal name stuff from defs.h to signame.h.
    Makefile.dist (SFILES, HFILES, OBS): Add signame.{c,h,o}.

Mon Feb 26 12:03:12 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * command.c (add_cmd): Don't call savestring on name.

Sun Feb 25 15:52:18 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * printcmd.c (print_frame_args): Make highest_offset an int.
    New variable args_printed.
    (print_frame_nameless_args): Remove parameter end and add num
    and first.
    (print_frame_args): Change call to print_frame_nameless_args.

Fri Feb 23 21:40:15 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * stack.c (up_command, down_command):
    Only print stack frame if from_tty.

Thu Feb 22 12:01:36 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * expread.y: Inlcude value.h and don't cast return value from
    lookup_internalvar.

    * infrun.c: Remove code in #ifdef UMAX_PTRACE.

    * values.c (convenience_info): Print in form "$foo = 5".
    Don't print "Debugger convenience variables:" before first one.

    * Makefile.dist: Remove ADD_FILES from CLIBS.
    (gdb, kdb, xgdb): Put in ADD_FILES as well as CLIBS.

    * m-pyr.h: #if 0 out call dummy stuff.
    Put in POP_FRAME which just calls error().
    valops.c: If CALL_DUMMY is not defined, put in dummy call_function
    which just prints an error message.

Tue Feb 20 22:11:40 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * breakpoint.c (commands_command): Add arg from_tty.

    * main.c (main): Put if (!setjmp (to_top_level)) around calls
    to *_command made in response to command line arguments.

Mon Feb 19 13:58:28 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * main.c (main): Use getopt_long_only.  Move one-character options
    to long_options.  Remove entries which are just unambiguous
    abbreviations of other options.

    * command.h: Add types cmd_types and var_types.
    Add fields type, var_type, and var to struct cmd_list_element.
    command.c (add_set_cmd, add_set_from_show): New functions.
    (add_cmd): Set c->var_type.
    (add_abbrev_cmd): Call add_cmd instead of duplicating code.
    main.c: Add showlist.
    Move parse_binary_operation from main.c to command.c.
    command.c (do_setshow_command): New function.
    gdbcmd.h: New file.
    Makefile.dist: Add gdbcmd.h.
    many files: Include gdbcmd.h, use add_set_cmd and add_show_from_set.
    Replace info * with show * where appropriate.
    utils.c (fputs_filtered): Use UINT_MAX in lines_per_page to mean
    no paging.
    defs.h: Define UINT_MAX.
    infcmd.c (run_command): Use execute_command, not set_args_command.
    main.c (execute_command): Call do_setshow_command if necessary.
    main.c (show_command, show_history): New functions.
    main.c (initialize_main): Call add_prefix_cmd
    for show and show history.

    * coffread.c (enter_linenos): Print error if
    file_offset < linetab_offset.

Sun Feb 18 15:37:05 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * convex-dep.c (comm_registers_info): Fix typo.  ("argc"->"arg").

Wed Feb 14 20:45:14 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * config.gdb: Create Makefile with make.

    * Makefile.dist, config.gdb: Move "srcdir=" line from Makefile.dist
    to new file Makefile.srcdir.

    * valprint.c: Include <errno.h>.

    * value.h: Declare value_coerce_function.

    * findvar.c: Add missing " after #include "gdbcore.h

    * main.c (main): Re-write command parsing to use getopt.
    On "gdb +help" print options with '+' not '-'.
    Makefile.dist: Add getopt.

Tue Feb 13 00:08:27 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist: Add "srcdir=."
    config.gdb: Edit srcdir= rather than adding it to the beginning.

    * pyr-dep.c: Make global_reg_offset, last_frame_offset not static.
    Move definition of reg_stack_offset to core.c [REG_STACK_SEGMENT].

    * config/pyramid: Print message about alloca.

    * breakpoint.c (clear_command): When printing "no breakpoint"
    error, only use arg if non-NULL.

    * core.c (read_memory): Rename to read_memory_noerr.
    (read_memory): New function which calls read_memory and checks for err.
    gdbcore.h: Declare all extern core.c functions.
    move myread from core.c to utils.c.
    declare it in defs.h.
    (read_memory_integer): move from infcmd.c to core.c.
    gdbcore.h: Declare it.
    Many places: Remove error checking on read_memory, or call
    read_memory_noerr instead.  Include "gdbcore.h" if calling either.

    * value.h (COERCE_ARRAY): Coerce functions to function pointers.
    valops.c (value_coerce_function): New function.

    * core.c, convex-dep.c, arm-dep.c (xfer_core_file): Return EIO
    if address out of bounds.

    * m-arm.h, arm-dep.c arm-pinsn.c arm-opcode.h: New files.
    dbxread.c, m-convex.h (VARIABLES_INSIDE_BLOCK): Add gcc_p parameter.
    Makefile.dist (alldeps.mak): Special case for arm-convert.s.
    dbxread.c (define_symbol): Check for local based on it not
    being any one of the known deftypes.
    values.c (using_struct_return): Use new macro USE_STRUCT_CONVENTION.

    * Makefile.dist, config.gdb: Put in srcdir stuff.

Mon Feb 12 22:46:16 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * breakpoint.c: Add addr_string and cond_string fields to
    struct breakpoint.
    (break_command_1): Set them.  Use mention ().
    (mention): Create with code from break_command_1.
    (breakpoint_re_set): New function.
    (breakpoint_clear): Remove.
    (condition_command): Set cond_string.
    (breakpoint_delete): Free cond_string and addr_string.
    Declare parse_c_1's type and remove casts to struct expression *.
    symmisc.c (free_all_symtabs): Don't call breakpoint_clear.
    dbxread.c, coffread.c (reread_symbols): Call breakpoint_re_set,
    Include breakpoint.h.
    breakpoint.h: New file.
    dbxread.c: Move declaration of symmisc.c functions to symtab.h.

Sun Feb 11 17:29:23 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symtab.c: Make lookup_block_symtab extern.
    symtab.h: Declare it.
    valops.c (value_of_this): Use it.

Fri Feb  9 08:59:37 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * config/hp300hpux: Print message telling people to use gcc.

    * value.h: Declare print_floating.
    printcmd.c (print_scalar_formatted, case 'f'): Use print_floating.
    valprint.c (val_print, case TYPE_CODE_FLT): Use print_floating.
    valprint.c (print_floating): Make this function out of is_nan
    and the code which was in val_print.
    Put parentheses around high & 0xfffff.
    Print sign and fraction for NaN's.
    Print 17 digits not 16 for doubles.
    (is_nan): Remove.
    m-news.h, m-sun3.h: Define IEEE_FLOAT.

    * Rename gld-pinsn.c to gould-pinsn.c.
    config/{pn,npl}: Change name of gld-pinsn.c

Tue Feb  6 00:25:36 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * infptrace.c: Define PT_ATTACH if not defined.
    m-hp300hpux.h: Define ATTACH_DETACH.

    * main.c (initialize_main): Change alias class to aliases.

    * dbxread.c: Search and destroy references to symsegs.
    Also remove some #if 0'd code.

    * core.c: Remove reread_exec.
    dbxread.c (reread_symbols): New function.
    dbxread.c (symbol_file_command): Set symfile_mtime.
    coffread.c: Same.
    infcmd.c (run_command): Call reread_symbols not reread_exec.

    * valprint.c (val_print): When printing string after char *, print
    it for "" just like any other string.

    * core.c (reread_exec): New procedure.
    infcmd.c (run_command): Call reread_exec.

    * coffread.c (symbol_file_command): Add from_tty.

    * dbxread.c (symbol_file_command): Only ask about loading new
    symbol table if from_tty.

Mon Feb  5 02:25:25 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * inflow.c (inferior_died): Call breakpoint_clear_ignore_counts.

    * Makefile.dist (OBS): Remove dbxread.o and coffread.o.

    * config.gdb: Ignore files ending in '#' in config.

    * stack.c (backtrace_command): Add QUIT to get_prev_frame loops.

Sat Feb  3 22:25:09 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * Makefile.dist (YACC): Don't use -v.

Fri Feb  2 19:26:50 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * createtags: Only change .o to .c at end of name.

    * Makefile.dist (alldeps.mak): new target.
    (Makefile): add alldeps.mak.
    (SOURCES): remove PINSNS.
    (TAGFILES: use ALLPARAM.
    (gdb.tar): add config/.

    * config.gdb: Check for M_FILE= not #param.h
    config/*: Make sure M_FILE= exists with space after M_FILE=.
    Makefile.dist (TAGS): Pass M_FILE and DEPFILES.
    createtags: Change .o to .c.  Remove special tests for dep.c etc.

    * dbxread.c, coffread.c: Don't check COFF_FORMAT and READ_DBX_FORMAT.
    Makefile.dist: Move {dbx,coff}read.c from SFILES to ALLDEPFILES.
    config/*: add dbxread.o or coffread.o to depfiles.

    * Makefile.dist (depend): Depend on $(SOURCES), not force.

Thu Feb  1 17:43:54 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * symmisc.c (print_symbol): Print newline after label.

Wed Jan 31 22:35:38 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c (read_addl_syms): Remove code that checks for
    _etext.
    Move end_of_text_addr into read_dbx_symtab.
    (read_dbx_symtab): #if 0 out code which checks for _etext.

Tue Jan 30 15:40:19 1990  Jim Kingdon  (kingdon at albert.ai.mit.edu)

    * Makefile.dist (gdb.tar): Use readline's "make readline.tar"
    instead of having a list of readline files.

    * infrun.c (normal_stop): #if 0 out "you have found a bug in sh".

    * munch (-DSYSV): Check for .text at end of name.
    Optionally allow extra underscore before initialize.
    Remove space between #! and /bin/sh.

    * m-merlin.h: Put in clarifying comments about SHELL_FILE.
    Makefile.dist (install): Execute M_INSTALL.
    config/merlin: Define M_INSTALL.

Mon Jan 29 04:32:09 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * inflow.c: Change all references to signal handlers from
    int (*)() to void (*)().

    * main.c: Declare init_signals before use & make it void.
    Declare initialize_all_files.

    * Makefile.dist (config.status): New target.

Sat Jan 27 00:19:50 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * defs.h (enum command_class): Remove comma after last element.

    * Makefile.dist (gdb.tar.Z): Use compress <foo >bar rather
    than deleting gdb.tar.Z before starting.

    * dbxread.c (process_one_symbol): Compare context_stack_depth
    with !VARIABLES_INSIDE_BLOCK, not VARIABLES_INSIDE_BLOCK.

    * mcheck.c: Put whole file in #if defined MALLOC_RANGE_CHECK.

    * mcheck.c (checkhdr): Call fatal_dump_core not abort.

    * mcheck.c: Copy from malloc distribution.

    * main.c (main): Call init_malloc ().

    * main.c (initialize_signals): Rename to init_signals.

Fri Jan 26 00:53:23 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * *dep.c: Make core_file_command return void.

    * gdbcore.h [!KERNEL_U_ADDR]: Declare kernel_u_addr.
    infptrace.c [!KERNEL_U_ADDR]: Make it extern.

    * altos-dep.c (NBPG, UPAGES): Wrap #define in #if !defined.

    * m-pn.h (GOULD_PN): Define.
    *-pinsn.c: Include actual opcode table not just opcode.h

    * main.c [ALIGN_STACK_ON_STARTUP]: New code.
    m-i386.h: Define ALIGN_STACK_ON_STARTUP.

    * m-merlin.h (NO_SIGINTERRUPT, SHELL_FILE): Define.

    * Move code from infptrace [USE_PTRACE_GETREGS] to sun3-dep.c.
    m-sun{2,3}.h, m-sparc.h: Define FETCH_INFERIOR_REGISTERS.

    * Makefile.dist, config.gdb, config/*:
    Re-write to use machine-dependent makefiles instead of cpp.

    * m-hp300hpux.h: Define FETCH_INFERIOR_REGISTERS.
    infptrace.c: Put {fetch,store}_inferior_registers inside
    #if !defined FETCH_INFERIOR_REGISTERS.

    * Split execcore.c into exec.c and coredep.c.
    Move a bunch of stuff from coredep.c and *dep.c to gdbcore.h.

    * infptrace.c ({fetch,store}_inferior_registers):
    Use U_REGS_OFFSET to set offset.
    m-umax.h: Define U_REGS_OFFSET.

    * m-umax.h: Define PTRACE_{ATTACH,DETACH}.

    * m-i386.h (N_SET_MAGIC): Define.
    m-i386gas.h: add #undef N_SET_MAGIC.

Thu Jan 25 18:39:45 1990  Jim Kingdon  (kingdon at mole.ai.mit.edu)

    * m-hp300bsd.h: Remove KERNEL_U_ADDR.

    * infptrace.c [!KERNEL_U_ADDR]: Get address of kernel u area
    at runtime.

    * infptrace.c: Replace numbers with PT_KILL, etc.
    (store_inferior_registers): Loop for as many words are in the register.

    * infptrace.c [NO_SINGLE_STEP]: Call single_step().

    * kill_inferior{,_fast}: Declare as returning void.

    * m-sun3.h (USE_PTRACE_GETREGS): Define.

    * execcore.c: Add IS_OBJECT_FILE & related stuff.

    * infptrace.c: Include <sys/ptrace.h>.
    [ATTACH_DETACH] [USE_PTRACE_GETREGS]: New code.

    * Split default-dep.c into infptrace.c and execcore.c.

    * valprint.c [IEEE_FLOAT]: Change void * to char *.

    * breakpoint.c: Change printf_filtered(%s) to fputs_filtered.

Wed Jan 24 00:35:52 1990  Jim Kingdon  (kingdon at pogo.ai.mit.edu)

    * dbxread.c (symbol_file_command): When freeing everything, free
    the string table too.

    * Makefile.dist (gdb1): add "rm -f gdb1".

    * printcmd.c (print_scalar_formatted): If size is 0, use 'b'
    'h', 'w', or 'g' depending on the type.

    * stack.c (backtrace_command): Read in symbols for frames we'll
    print before printing them.

    * valops.c (value_at): Don't print "I/O error" on EIO from
    ptrace.  Don't print "out of bounds" for any ptrace error
    except EIO.

    * valprint.c (type_print_base, case TYPE_CODE_ENUM):
    Print "FOO = 5" not "FOO : 5".

    * symtab.{c,h}: Make lookup_misc_func extern.

    * Makefile.dist: Define VERSION in makefile, and generate
    version.c automatically.
    (gdb.tar): Use gdb-$(VERSION), not dist-gdb.

    * expread.y (yylex): Use lookup_primitive_typename to
    cut down on calls to lookup_symbol.
    symtab.{c,h} (lookup_primitive_typename): New function.
    (lookup_typename): Use it.

    * symtab.{c,h} (check_stub_type): New function.
    valprint.c (type_print_base, val_print, type_print_derivation_info),
    values.c (allocate_value): Call it.

    * printcmd.c (whereis_command): New function.
    symtab.c (lookup_symbol): Add symtab parameter.
    various: Pass additional argument to lookup_symbol.
    symseg.h (struct symbol): Add line field.
    dbxread.c (define_symbol): Set sym->line.

    * dbxread.c (symbol_file_command): Read string table into
    malloc'd memory (symfile_string_table) and leave it there.
    (psymtab_to_symtab): Use symfile_string_table.

    * utils.c (sig_abbrev): Return NULL if not found.
    infrun.c (sig_print_{header,info}): Consolidate duplicated
    code from handle_command, signals_info.
    (sig_print_info): Just print number if no name from sig_abbrev.

    * Makefile.dist (OTHERS): Add ChangeLog-3.x

    * infrun.c (restore_inferior_status): #if 0 out
    "Unable to restore previously selected frame" error message.

    * infrun.c (signals_info, handle_command): Print signal
    abbrevs along with numbers.

    * infrun.c (handle_command): Accept symbol signal names.

    * utils.c (sig_{number,abbrev}, init_sig): New functions.
    _initialize_utils: Call init_sig for each signal.
    defs.h: Declare them.

    * default-dep.c (read_inferior_memory): Check quit_flag in
    fetch loop.

    * Changes for lazy fetching (speeds things up for big objects):
    value.h (struct value): New field lazy.
    VALUE_CONTENTS_RAW, VALUE_LAZY, value_at_lazy: New.
    findvar.c (read_var_value): Set lazy instead of fetching.
    various: Copy into VALUE_CONTENTS_RAW, not VALUE_CONTENTS.
    valops.c: Add value_at_lazy, value_lazy.
    various: Call value_at_lazy instead of value_at.

    * symtab.h (LONGEST): Define.

    * m-*.h (LONGEST, BUILTIN_TYPE_LONGEST): Delete (in symtab.h).

    * infrun.c (wait_for_inferior): #if 0 out stop if ABOUT_TO_RETURN

    * version.c: Change version number to 4.0development

For older changes see ChangeLog-3.x

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