Software of the Month Club 2000 October/Software of the Month - Ultimate Collection Shareware 277.iso/pc/PROGRAMS/UTILITY/WINLINUX/DATA1.CAB/programs_-_usrdoc/STRACE-3.{2C/CHANGELO.{__

Text File | 1999-09-17 | 23.3 KB | 596 lines

Sun Oct 27 22:28:00 1996  J. Richard Sladkey  <[e-mail]>

    * util.c (umovestr) [LINUX]: Handle Linux like SunOS4
    instead of SVR4.  That is, read a few bytes at a time
    to avoid overrunning the end of the stack.

Fri May 31 01:48:49 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.1 is released.

Thu May 23 01:04:43 1996  J. Richard Sladkey  <[e-mail]>

    * aclocal.m4 (AC_DECL_SYS_ERRLIST): Try looking in stdio.h
    as well since that's where glibc declares it.  Go figure.
    * signal.c (sys_sigreturn) [ALPHA]: Use sigcontext
    instead of sigcontext_struct since glibc v5+ apparently
    plays games with the native OS namespace.
    From David Mosberger-Tang <[e-mail]>.

Mon May 20 23:17:14 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.14 is released.

    * aclocal.m4 (AC_STRUCT_MSG_CONTROL): New macro.
    * configure.in: Add call to AC_STRUCT_MSG_CONTROL.
    * net.c (printmsghdr): Handle BSD 4.3 and 4.4 msghdr members
     differently.
    Reported by Henrik Storner <[e-mail]>.

    * configure.in: (AC_CHECK_{HEADERS,FUNCS}): Add checks for
     sys/filio.h and sys/stream.h and remove check for poll.
    * desc.c (decode_select, sys_select, sys_oldselect) [LINUX]:
     Handle old and new styles of argument passing for select on Linux.
    * ioctl.c, stream.c: Conditionalize stream code on presence of
    sys/stream.h instead of poll because glibc implements poll but
    not the rest of the stream interface.
    * signal.c [LINUX]: Standardize on the name sigcontext_struct.
    (sys_sigprocmask) [ALPHA]: Handle OSF flavor which is more like
    sigsetmask.
    * term.c (term_ioctl): Use _VMIN, if present, for TC{G,S}ETA*.
    * util.c (umoven, umovestr): Move data in long-sized chunks
    at a time, instead of hard coding it to be 4.
    From David Mosberger-Tang <[e-mail]>.

Mon May 20 01:19:36 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.13 is released.

    * configure.in (AC_CHECK_HEADERS): Add check for asm/sigcontext.h.
    * signal.c [HAVE_ASM_SIGCONTEXT_H]: Conditionally include
    asm/sigcontext.h to define sigcontext_struct and don't define it
    locally if the header is present.

    * syscall.c (nerrnos{0,2}): Correct size computation.

    * Makefile.in: Remove dependencies and rules relating to files
     normally found in the os directory.  Because of the new scheme we
     don't know precisely where they come from.  Sigh.
    * signalent.sh: Make it work for sunos4, linux, and svr4.
    * {sunos4,linux{,/alpha},svr4}/Makefile.in: Make rules correspond
     to traditional make syntax.  Add signalent.h to files which can
     unconditionally be rebuilt.  Prevent signalent.h from being
     unconditionally being rebuilt since it's customized.
    * {sunos4,linux{,/alpha},svr4}/{ioctlent,errnoent,signalent}.h:
     Use versions built by {ioctlent,errnoent,signaltent}.sh.
      * sunos4/ioctlent.sh: Work around sprintf troubles with SunOS
     4.1.4 and gcc 2.7.2.

Sun May 19 17:14:09 1996  J. Richard Sladkey  <[e-mail]>

    * configure.in, Makefile.in: Add OSARCH concept to finish
    build support for the alpha.
    * Makefile.in, linux/Makefile.in: Rewrite clean, distclean,
    and maintainer-clean rules.
    * defs.h, ioctlsort.c: Make ioctl code member unsigned.
    * ioctl.c, ioctlsort.c (compare): Perform explicit checking
    for less, greater, and equal since subtraction on two's
    complement numbers isn't an order relation (it isn't transitive)!
    * linux/Makefile.in: Add rules for the signalent.h file.
    * linux/alpha/Makefile.in: New file.

Sun May 19 01:12:28 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.12 is released.

    * linux{,alpha}/ioctlent.sh: Tweak for recent kernels.
    From Michael E Chastain <[e-mail]>.

    * defs.h (SUPPORTED_PERSONALITES, DEFAULT_PERSONALITY): New.
    * syscall.c (set_personality): New.
    * strace.c (main): Call set_personality.
     * defs.h, syscall.c, ioctl.c, signal.c: Make sysent, errnoent,
     ioctlent, and signalent indirect pointers and redirect them
    based on personality.
    * {sunos4,svr4,linux{,/alpha}}/signalent.h: New files.
    Suggested by Tom Dyas <[e-mail]>.

    * util.c (upeek): Handle case where ptrace returns a long
    and sizeof(long) != sizeof(int).
    From Richard Henderson <[e-mail]>

Fri May 17 21:03:36 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.11 is released.

    * many files: Fix more printf warnings for other platforms.

    * ipc.c (sys_msgrcv) [LINUX]: Conditionalize definition of ipc_wrapper.

    * linux/dummy.h: Handle missing library support for {send,recv}msg.
    Reported by Thomas Bogendoerfer <[e-mail]>.

    * linux/syscall.h (sys_utimes): Fix a typo in the declaration.
    From Thomas Bogendoerfer <[e-mail]>.

Fri May 17 00:50:06 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.10 is released.

    * Makfile.in: Add os/arch to includes so that a given arch
    (like alpha) can override the native arch (like i386).
    * configure.in: Check for sendmsg.

    * net.c: Make sendmsg and recvmsg dependent on an autoconf
    test.  Reported by Michael E Chastain <[e-mail]>.

    * acconfig.h, configure.in: Detect the alpha.
    * ioctl.c: Handle the alpha.
    * defs.h: Make some members long for the alpha.  Define
    some register nicknames.  Add support for WAITEXECVE.
    * file.c [ALPHA]: Support the alpha for statfs.  Add
    osf_statfs and osf_fstatfs for the alpha.  Make damn sure
    major and minor results are suitable for passing to printf.
    * signal.c, syscall.c: Support the alpha.
    * process.c: Add alpha user offsets.
    * most files: Use %l? for printf arguments since
    most are now longs for the alpha.
    * linux/alpha/{errnoent.h,ioctlent.{h,sh},syscallent.h}:
    New for the alpha.
    From Thomas Bogendoerfer <[e-mail]>.

Wed May 15 00:29:37 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.9 is released.

    * config.in, config.sub, install-sh: Upgrade to autoconf 2.10.

    * linux/dummy.h, linux/syscallent.h, linux/syscall.h: Add recent
    Linux kernel version system calls.

Wed Mar 13 01:03:38 1996  J. Richard Sladkey  <[e-mail]>

    * ipc.c [SUNOS4]: Add SunOS support for decoding IPC calls.
    * syscall.c [SUNOS4]: Compile decode_subcall on SunOS and
    decode IPC calls using it.
    * sunos4/dummy.h: Alias sys_semop to printargs.
    * sunos4/syscall.h: Add new pseudo syscalls for IPC.
    * sunos4/syscallent.h: Include new subcalls for IPC.
    From Matthias Pfaller <[e-mail]>.

Tue Feb 13 22:08:25 1996  J. Richard Sladkey  <[e-mail]>

    * version.c: Version 3.0.8 is released.

    * time.c [LINUX]: Explicitly include linux/version.h.

    * strace.c (main): Don't let them even *try* to
    get strace to attach to itself since some systems
    don't handle this case very gracefully.
    Reported by David S. Miller <[e-mail]>.

    * Makefile.in (distclean): Fix it for subdirectories.

    * sunos4/syscallent.h, svr4/syscallent.h: Fill in the new
    sys_flags member for each defined system call.

Fri Dec  8 01:17:28 1995  Rick Sladkey  <[e-mail]>

    * defs.h (TRACE_*): New flags to describe what class
    of system call each system call is.
    (sysent): Add sys_flags member.
    * syscall.c (sysent): Define (and later undef) abbreviations
    for the system call class flags.
    (lookup_class): New function to translate strings to
    system call class flags.
    (qualify): Handle new system call class mechanism.
    * linux/syscallent.h: Fill in the new sys_flags member
    for each defined system call.

    * defs.h (print_sock): Remove redundant and non-K&R C
    compatible prototype.  From Juergen Weigert
    <[e-mail]>.

Thu Dec  7 01:17:40 1995  Rick Sladkey  <[e-mail]>

    * linux/ioctlent.sh: Tweak to improve ioctl accuracy.
    From Michael E Chastain <[e-mail]>.

    * system.c (includes) [LINUX]: Add linux/nfs.h for recent
    kernels.  From Michael E Chastain <[e-mail]>.

Wed Dec  6 21:52:28 1995  Rick Sladkey  <[e-mail]>

    * file.c (sprintfstype): Enclose string result in double
    quotes.

    * time.c (sys_adjtimex) [LINUX]: Conditionalize
    constantly evolving timex structure.
    From Aaron Ucko <[e-mail]>.

    * defs.h, syscall.c, strace.c: Rename syscall to
    trace_syscall and change prototype and all callers
    because of broken Linux shared libraries.
    From Aaron Ucko <[e-mail]>.

    * Makefile.in (clean): Check for a file with test -f not
    test -d.  From Aaron Ucko <[e-mail]>.

Tue Sep 26 02:32:31 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.7 is released.

    * util.c (string_quote): Fix thinko which caused core
    dumps for strings with quotes in them.
    Reported by Marty Leisner <[e-mail]>.

    * linux/Makefile.in (errnoent.h rule): Grab all errno.h
    files from /usr/include, not just the linux one.
    From Michael E Chastain <[e-mail]>.

    * linux/errnoent.sh: Total rewrite to handle more ioctls with
    fewer false positives on more kernel flavors.
    From Michael E Chastain <[e-mail]>.

Mon Sep  4 01:29:22 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.6 is released.

    * linux/dummy.h, linux/syscall.h, linux/syscallent.h: Add
    sys_msync.
    * mem.c (mctl_funcs, mctl_lockas, sys_mctl): Conditionalize
    on MC_SYNC instead of HAVE_MCTL.
    (mctl_sync): Conditionalize on MS_ASYNC instead of HAVE_MCTL.
    (sys_msync): New function.

Sat Sep  2 12:06:04 1995  Rick Sladkey  <[e-mail]>

    * linux/dummy.h, linux/syscall.h, linux/syscallent.h: Add
    sys_flock and sys_getdents.
    * desc.c (flockcmds, sys_flock): Conditionalize on LOCK_SH
    not SUNOS4.
    * file.c (sys_getdents): Define unconditionally and handle
    LINUX case.
    * strace.c (main): Disallow username option unless both real
    and effective uids are root.

Wed Aug 30 01:29:58 1995  Rick Sladkey  <[e-mail]>

    * strace.c (main): Ensure that run_uid and run_gid are
    always set to something meaningful.
    (main, newoutf) [!SVR4]: Swap real and effective uids while
    opening any output files.
    (main) [!SVR4]: Treat effective uid of root as a request
    to handle suid binaries correctly using the real uid of
    the invoking user.

Sat Aug 19 00:06:08 1995  Rick Sladkey  <[e-mail]>

    * Makefile.in: Add `|| true' to clean rule because
    although GNU make 3.74 uses `sh -c' to invoke commands
    every other make in the world uses `sh -ec'.

    * syscall.c (syscall) [SVR4, MIPS]: The fifth and subsequent
    arguments appear to be stored on the stack, not in the
    registers following A3 (empirical result).

    * defs.h: Add prototype for printsock.
    * svr4/dummy.h: Remove generic handling of sys_mount.
    * system.c [SVR4, MIPS]: Include several system headers to cleanly
    get access to SGI mount information.
    (mount_flags, nfs_flags) [SVR4, MIPS]: New objects.
    (sys_mount) [SVR4, MIPS]: New function.
    (sys_mount) [SVR4, !MIPS]: New function.

Tue Jul  4 00:30:34 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.5 is released.

    * desc.c, resource.c, strace.c, syscall.c, time.c: Cast tv_sec and
     tv_usec members to long when using printf.

    * ipc.c: Omit define of __KERNEL__.
    ({MSG,SEM,SHM}_{STAT,INFO}): Explicitly define those things we
     want which __KERNEL__ used to provide.
    (sys_msgrcv): Change reference to ipc_kludge structure to
    look-alike ipc_wrapper to avoid dependence on __KERNEL__.

    mem.c (mmap_flags) [MAP_{GROWSDOWN,DENYWRITE,EXECUTABLE}]: Add
     Linux specific options.

    syscall.c: Use SYS_ERRLIST_DECLARED instead of guessing.
      [E{RESTART{SYS,NO{INTR,HAND}},NOIOCTLCMD}]: Explicitly define
     instead of depending of __KERNEL__.

    term.c: Cast c_{i,o,c,l}flag to long when using printf.

Tue Jun  6 00:27:48 1995  Rick Sladkey  <[e-mail]>

    * aclocal.m4 (AC_DECL_SYS_ERRLIST, AC_DECL__SYS_SIGLIST): New.
    * configure.in: Call AC_DECL_SYS_ERRLIST, AC_DECL_SYS_SIGLIST,
    and AC_DECL__SYS_SIGLIST.
    * acconfig.h (SYS_ERRLIST_DECLARED): New.
    * strace.c (strerror): Use SYS_ERRLIST_DECLARED.
    (strsignal): Use SYS_SIGLIST_DECLARED.

    net.c (sys_socket): Omit inadvertent surplus comma when
    protocol family isn't PF_INET.

    util.c (dumpstr): Fix incorrect printing of one too many
    characters when the length is not an even multiple of 16 bytes.
    Reported by Juergen Weigert
    <[e-mail]>.

Thu May  4 23:37:47 1995  Rick Sladkey  <[e-mail]>

    * ioctl.c (compare): Change prototype to match POSIX qsort.
    * signal.c (sigishandled) [SVR4]: Omit everything after return.
    * strace.c (trace) [SVR4]: Break out of for loop instead of
    returning when finished so final return statement is executed.
    * syscall.c (internal_syscall): Add more SYS_wait* variations.
    (syscall) [LINUX]: Correct typo which commented out the M68K
    argument to ifdef.
    * util.c (printstr): Cast unsigned char pointer argument
    to char pointer in umovestr call.
    (dumpstr): Likewise for umoven.

Wed May  3 01:10:56 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.4 is released.

    * signal.c (sys_sigblock): Move after the definition of
    sys_sigsetmask that it calls to avoid an implicit declaration.
    * stream.c (transport_user_options, transport_server_options):
    Only needed if TI_BIND is defined.
    * configure.in: Add -Wno-implicit to WARNFLAGS on SunOS 4.x.

    * process.c (internal_fork) [SVR4]: Fix a typo that omitted
    the tcp arguement from the call to exiting.  Add getrval2
    check so no fork processing is done in the child.
    (printwaitn): Initialize exited so that its value is defined
    for all flows of execution.

Tue May  2 22:39:42 1995  Rick Sladkey  <[e-mail]>

    * linux/dummy.h: Add aliases for sysfs, personality, afs_syscall,
    setfsuid, setfsgid, and _llseek syscalls.
    * linux/syscall.h: Add prototypes for them.
    * linux/syscallent.h: Add them to the syscall entries table.
    * system.c (headers) [LINUX]: Include linux/unistd.h to get __NR_*
    defines and conditionally include linux/personality.h if
    __NR_personality is defined.
    (personality_options) [LINUX]: New table.
    (sys_personality) [LINUX]: New function.

Tue May  2 00:20:39 1995  Rick Sladkey  <[e-mail]>

    * strace.c (trace) [!SVR4]: Change forever loop to one predicated
    on the number of traced processes so that we can have untraced
    children (e.g. via popen).

    * strace (main) [!SVR4]: Call fake_execve to get the actual
    exec and its arguments into the trace.
    (environ): Declare it.
    * process.c (fake_execve): New function.
    (headers): Include sys/syscall.h to get SYS_* defines.

    * process.c (sys_execv, sys_execve): Surround argument annotations
    with C comment delimiters.
    (printargv, printargc): The arg vector is an array of char pointers
    not ints.

    * strace.c (printleader): Also check for multiple -p arguments
    when deciding whether to print the pid field.

    * strace.c (strerror) [!HAVE_STRERROR]: New function.
    * defs.h (strerror, strsignal): Add these prototypes if we provide
    the functions.
    * configure.in (AC_CHECK_FUNCS): Add strerror.

    * strace.c (main, proc_poller): Add SIGPIPE to the list of caught
    and blocked signals.

    * strace.c (main): Add username option.  Verify they are root before
    letting them use it.  Look up the ids in the password file.  Set
    them just before executing the program.
    From Reuben Sumner <[e-mail]>.

Sat Apr 29 00:09:56 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.3 is released.

    * system.c (mount_flags) [LINUX]: Omit duplicated MS_NOSUID entry.
    From Reuben Sumner <[e-mail]>.

    * strace.c (outfname): Initialize to NULL.
    (main): Defer output file processing until after arguments.
    Allow either a pipe or a bang for command arguments.
    Check if outfname is NULL instead of checking outf for stderr.
    Reinitialize each startup TCB's outf to fix -p/-o ordering bug.
    (droptcb): Reset close TCB's outf to NULL instead of stderr.
    (tprintf): Avoid calling vfprintf if outf is NULL.

    * strace.c (main): Use popen if -o argument begins with a pipe.
    From Marty Leisner <[e-mail]>.

    * process.c (printstatus): Fix a typo where WIFSIGNALED was meant
    but WIFSTOPPED was used.

    * Makefile.in: Add an EXTRA_DEFS variable and use it in the .c.o
    rule to prevent the comment from being untrue.

Fri Apr 28 22:01:56 1995  Rick Sladkey  <[e-mail]>

    * strace.c (sys_exit): Move follow fork code to internal_exit.
    (sys_fork): Move follow fork code to internal_fork.
    (sys_execv, sys_execve): Move follow fork code to internal_exec.
    (sys_waitpid, sys_wait4): Move follow fork code to internal_wait.
    (vforking): Remove this static variable and check scno in
    internal_fork instead.
    (internal_exit, internal_fork, internal_exec, internal_wait): New
    functions.
    * defs.h: Add prototypes for the new internal_* functions.
    * syscall.c (syscall): Move syscall entering trace qualifier check
    and reprint checking after context decoding and precede them with
    a call to internal_syscall.  Precede syscall exiting trace
    qualifier check with a call to internal_syscall.
    (internal_syscall): New function.

    * defs.h (struct tcb): Make scno signed.
    * strace.c (syscall) Make u_error signed.
    [LINUX, I386]: Avoid unsigned cast in eax check.
    * syscall.c (sys_indir): Make i, scno, and nargs signed.
    * desc.c (sys_select): Make cumlen unsigned

Mon Apr 24 23:52:47 1995  Rick Sladkey  <[e-mail]>

    * net.c (socktypes): Add SOCK_PACKET.

Sun Apr  2 23:50:39 1995  Rick Sladkey  <[e-mail]>

    * Makefile (clean): Check explicitly for a Makefile in subdirs
    before running make in them.

Sun Mar 26 12:37:21 1995  Rick Sladkey  <[e-mail]>

    * strace.c [MIPS] (proc_open): Conditionalize run on MIPS.
    [MIPS] (detach): Initialize error for MIPS case.
    (trace): Initialize ioctl_result and ioctl_errno for overly helpful
    compilers.
    * syscall.c (decode_subcall): Move variable i into conditionals
    that use use it.
    * system.c (syssgi_options): Conditionalize SGI_RECVLMSG and
    SGI_SET_FPDEBUG that SGI decided to drop.  I don't have the stomach
    to change them all.
    * term.c (term_ioctl): Force [c_[iocl]flags members to long before
    printing since we don't know what the size of their type is.
    * util.c [SVR4, MIPS] (umoven): Prevent MIPS from using pread even
    if autoconf detects it since it seems to either not work or do
    something else entirely on Irix 5.3.

Sun Mar 26 00:01:11 1995  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.2 is released.
    * linux/dummy.h: Make sys_fchdir like sys_close instead of printargs
    so that the file descriptor arg is decimal.

Sat Mar 25 22:50:13 1995  Rick Sladkey  <[e-mail]>

    * net.c [LINUX] (protocols): Explicitly define all IPPROTO_* entries
    because on Linux they are enumerators.

    * system.c [LINUX] (mount_flags): Handle renaming of MS_SYNC to
    MS_SYNCHRONOUS.

    * util.c (printxval): When there is no translation, print the actual
    number first and the the default value as a C comment.

    * net.c (sys_send, sys_sendto, sys_sendmsg, sys_getsockopt,
    sys_setsockopt): Change first argument from unsigned to signed to
    cater to the frequent practice of calling system calls with a file
    descriptor of -1.
    * mem.c (sys_mmap): Likewise.

Sun Mar 19 13:53:52 1995  Rick Sladkey  <[e-mail]>

    * signal.c [LINUX] (signalent): Handle old and new values of SIGIO.

Sun Dec 11 22:51:51 1994  Rick Sladkey  <[e-mail]>

    * version.c: Version 3.0.1 is released.
    * Makefile.in, configure.in, aclocal.m4: Changes for autoconf 2.0.
    * config.guess, config.guess: Update from the FSF.
    * install-sh: New from the FSF.

Mon Dec  5 20:51:29 1994  Rick Sladkey  <[e-mail]>

    * Makefile.in: Add m68k arch.
    * acconfig.h (M68K): Add m68k define.
    * configure.in: Add detection of arch m68k.
    * process.c [M68K] (struct_user_offsets): Support m68k registers and
    offsets.
    * signal.c [M68K] (sigcontext_struct): Support m68k sigcontext
    structure.
    [M68K] (sys_sigreturn): Support m68k sigreturn handling.
    * syscall.c [M68K] (syscall): Support m68k syscall number register
    and errno in d0 instead of eax.
    * util.c [M68K] (getpc, printcall, setbpt, clearbpt): Support m68k
    program counter in PT_PC instead of EIP.
    [M68K] (LOOP): Support m68k loop instruction.
    From Andreas Schwab <[e-mail]>.

    * mem.c [MAP_ANONYMOUS] (mmap_flags): Correct inadvertent reference
    to MAP_FIXED instead of MAP_ANONYMOUS.
    From Andreas Schwab <[e-mail]>.

    * signal.c [LINUX] (signalent): Signal 30 is now SIGPWR.
    From Andreas Schwab <[e-mail]>.

Mon Dec  5 01:05:46 1994  Rick Sladkey  <[e-mail]>

    * defs.h (tprintf): Fix typo in non-gcc ansi prototype for tprintf.
    Reported by Thanh Ma <[e-mail]>.

    * strace.c (cleanup): Send SIGCONT before SIGTERM because Linux
    1.1.62 doesn't continue a traced child when the parent exits.
    Reported by Matt Day <[e-mail]>.

    * system.c [LINUX]: Include netinet/in.h before arpa/inet.h.

    * util.c (printstr): Fix longstanding bug in notating string
    continuation.

    * strace.c [SVR4] (proc_open): Specifically wait for the child the
    child to go into the execve syscall to avoid spurious traces.
    [LINUX] (detach): Conditionalize the status variable.

Sun Dec  4 23:21:42 1994  Rick Sladkey  <[e-mail]>

    * Makefile.in: Add mips arch.
    * acconfig.h (MIPS): Add mips define.
    * configure.in: Add detection of opsys irix5 and arch mips.  Check
    for prctl function.
    Check for sys/sysconfig.h header.
    * defs.h (MAX_ARGS): Bump maximum syscall arguments from 8 to 32.
    * file.c [SVR4]: Include sys/cred.h.
    (access_flags): Update access flags for SGI.
    (sprinttime): Change type of sprinttime argument from unsigned
    long to time_t.
    * process.c [HAVE_PRCTL]: Include sys/prctl.h.
    [HAVE_PRCTL] (prctl_options, sys_prctl): New for SGI.
    (printsiginfo): Conditionally compile SI_TIMER and SI_MESGQ.
    Cast si_band member to long before printing.
    * signal.c (sigact_flags): Add _SA_BSDCALL for SGI.
    (sigprocmaskcmds): Add SIG_SETMASK32 for SGI.
    * strace.c [SVR4] [MIPS]:
    (foobar): New dummy signal handler.
    (main): Install a dummy signal handler in the child before pausing
    to work around an SGI bug in PRSABORT.
    (proc_open): Send a interrupt to the child instead of aborting the
    syscall which doesn't work on Irix5.2.
    * svr4/dummy.h: Add new unfinished SGI syscalls
    (e.g. sys_sysmp, sys_sginap, etc.).  Handle some SGI syscalls like
    existing calls (e.g. sys_ksigaction like sys_sigaction).
    Printargs does the print thing for sys_sethostid.
    * svr4/syscall.h: Declare all new SGI syscalls.
    (SGI_KLUDGE): Define syscall table starting index to be 1 for SGI
    and add it to all subcall entry points.
    (SYS_pgrpsys_subcall, SYS_sigcall_subcall, SYS_context): Don't
    decode as subcalls on MIPS. Instead, use the normal syscalls.
    * svr4/syscallent.h [MIPS]: Lead syscall table with a dummy entry
    since SGI syscall numbers are off by one.
    [MIPS] (sys_pgrpsys): Rename to sys_setpgrp on SGI.
    [MIPS] (sys_xenix): Rename to sys_syssgi on SGI.
    [MIPS] (sys_sysmachine): Rename to sys_sysmips on SGI.
    [MIPS]: Conditionalize SVR4 extension into SGI and Solaris classes.
    * syscall.c (dumpio): Validate descriptor against MAX_QUALS.
    [HAVE_PR_SYSCALL] (syscall): Conditionalize SYS_vfork.
    [MIPS] (syscall): Add SGI section for decoding u_error and u_rval.
    Add workaround for broken SGI pr_sysarg on syscall entry.
    [SVR4] (syscall): Conditionalize subcall decoding for
    SYS_ptrpsys_subcall, SYS_sigcall_subcall and SYS_context_subcall.
    [SVR4] [MIPS] (getrval2): Handle SGI.
    * syscallent.sh: Dork the sed line to be choosier about SYS_ lines.
    * system.c [HAVE_SYSCONFIG_H]: Include sys/sysconfig.h.
    [MIPS] (syssgi_options, sys_syssgi): New for SGI.