home *** CD-ROM | disk | FTP | other *** search
- -*- text -*-
-
- Changes since 2.6:
-
- The PowerPC assembler now allows the use of symbolic register names (r0, etc.)
- if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) can be
- used any time. PowerPC 860 move to/from SPR instructions have been added.
-
- Alpha Linux (ELF) support added.
-
- PowerPC ELF support added.
-
- m68k Linux (ELF) support added.
-
- i960 Hx/Jx support added.
-
- i386/PowerPC gnu-win32 support added.
-
- SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the
- default is to build COFF-only support. To get a set of tools that generate ELF
- (they'll understand both COFF and ELF), you must configure with
- target=i386-unknown-sco3.2v5elf.
-
- m88k-motorola-sysv* support added.
-
- Changes since 2.5:
-
- Gas now directly supports macros, without requiring GASP.
-
- Gas now has an MRI assembler compatibility mode. Use -M or --mri to select MRI
- mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the ``.mri
- 0'' is seen; this can be convenient for inline assembler code.
-
- Added --defsym SYM=VALUE option.
-
- Added -mips4 support to MIPS assembler.
-
- Added PIC support to Solaris and SPARC SunOS 4 assembler.
-
- Changes since 2.3:
-
- Converted this directory to use an autoconf-generated configure script.
-
- ARM support, from Richard Earnshaw.
-
- Updated VMS support, from Pat Rankin, including considerably improved debugging
- support.
-
- Support for the control registers in the 68060.
-
- Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
- provide for possible future gcc changes, for targets where gas provides some
- features not available in the native assembler. If the native assembler is
- used, it should become obvious pretty quickly what the problem is.
-
- Usage message is available with "--help".
-
- The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
- also, but didn't get into the NEWS file.)
-
- Weak symbol support for a.out.
-
- A bug in the listing code which could cause an infinite loop has been fixed.
- Bugs in listings when generating a COFF object file have also been fixed.
-
- Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by Paul
- Kranenburg.
-
- Improved Alpha support. Immediate constants can have a much larger range now.
- Support for the 21164 has been contributed by Digital.
-
- Updated ns32k (pc532-mach, netbsd532) support from Ian Dall.
-
- Changes since 2.2:
-
- Mach i386 support, by David Mackenzie and Ken Raeburn.
-
- RS/6000 and PowerPC support by Ian Taylor.
-
- VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit,
- based on mail received from various people. The `-h#' option should work again
- too.
-
- HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work
- with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
- version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve
- this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
- in the "dist" directory.
-
- Vax support in gas fixed for BSD, so it builds and seems to run a couple simple
- tests okay. I haven't put it through extensive testing. (GNU make is
- currently required for BSD 4.3 builds.)
-
- Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
- based on code donated by CMU, which used an a.out-based format. I'm afraid the
- alpha-a.out support is pretty badly mangled, and much of it removed; making it
- work will require rewriting it as BFD support for the format anyways.
-
- Irix 5 support.
-
- The test suites have been fixed up a bit, so that they should work with a
- couple different versions of expect and dejagnu.
-
- Symbols' values are now handled internally as expressions, permitting more
- flexibility in evaluating them in some cases. Some details of relocation
- handling have also changed, and simple constant pool management has been added,
- to make the Alpha port easier.
-
- New option "--statistics" for printing out program run times. This is intended
- to be used with the gcc "-Q" option, which prints out times spent in various
- phases of compilation. (You should be able to get all of them printed out with
- "gcc -Q -Wa,--statistics", I think.)
-
- ----------------------------------------------------------------
-
- Changes since 2.1:
-
- RS/6000 AIX and MIPS SGI Irix 5 support has been added.
-
- Configurations that are still in development (and therefore are convenient to
- have listed in configure.in) still get rejected without a minor change to
- gas/Makefile.in, so people not doing development work shouldn't get the
- impression that support for such configurations is actually believed to be
- reliable.
-
- The program name (usually "as") is printed when a fatal error message is
- displayed. This should prevent some confusion about the source of occasional
- messages about "internal errors".
-
- ELF support is falling into place. Support for the 386 should be working.
- Support for SPARC Solaris is in. HPPA support from Utah is being integrated.
-
- Symbol values are maintained as expressions instead of being immediately boiled
- down to add-symbol, sub-symbol, and constant. This permits slightly more
- complex calculations involving symbols whose values are not alreadey known.
-
- DBX-style debugging info ("stabs") is now supported for COFF formats.
- If any stabs directives are seen in the source, GAS will create two new
- sections: a ".stab" and a ".stabstr" section. The format of the .stab
- section is nearly identical to the a.out symbol format, and .stabstr is
- its string table. For this to be useful, you must have configured GCC
- to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
- that can use the stab sections (4.11 or later).
-
- LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
- support is in progress.
-
- ----------------------------------------------------------------
-
- Changes for 2.1:
-
- Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
- incorporated, but not well tested yet.
-
- Altered the opcode table split for m68k; it should require less VM to compile
- with gcc now.
-
- Some minor adjustments to add (Convergent Technologies') Miniframe support,
- suggested by Ronald Cole.
-
- HPPA support (running OSF only, not HPUX) has been contributed by Utah. This
- includes improved ELF support, which I've started adapting for SPARC Solaris
- 2.x. Integration isn't completely, so it probably won't work.
-
- HP9000/300 support, donated by HP, has been merged in.
-
- Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support.
-
- Better error messages for unsupported configurations (e.g., hppa-hpux).
-
- Test suite framework is starting to become reasonable.
-
- ----------------------------------------------------------------
-
- Changes for 2.0:
-
- Mostly bug fixes.
-
- Some more merging of BFD and ELF code, but ELF still doesn't work.
-
- ----------------------------------------------------------------
-
- Changes for 1.94:
-
- BFD merge is partly done. Adventurous souls may try giving configure the
- "--with-bfd-assembler" option. Currently, ELF format requires it, a.out format
- accepts it; SPARC CPU accepts it. It's the default only for OS "elf" or
- "solaris". (ELF isn't really supported yet. It needs work. I've got some
- code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not fully
- merged yet.)
-
- The 68K opcode table has been split in half. It should now compile under gcc
- without consuming ridiculous amounts of memory.
-
- A couple data structures have been reduced in size. This should result in
- saving a little bit of space at runtime.
-
- Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF
- code provided ROSE format support, which I haven't merged in yet. (I can make
- it available, if anyone wants to try it out.) Ralph's code, for BSD 4.4,
- supports a.out format. We don't have ECOFF support in just yet; it's coming.
-
- Support for the Hitachi H8/500 has been added.
-
- VMS host and target support should be working now, thanks chiefly to Eric
- Youngdale.
-
- ----------------------------------------------------------------
-
- Changes for 1.93.01:
-
- For m68k, support for more processors has been added: 68040, CPU32, 68851.
-
- For i386, .align is now power-of-two; was number-of-bytes.
-
- For m68k, "%" is now accepted before register names. For COFF format, which
- doesn't use underscore prefixes for C labels, it is required, so variable "a0"
- can be distinguished from the register.
-
- Last public release was 1.38. Lots of configuration changes since then, lots
- of new CPUs and formats, lots of bugs fixed.
-
-
- Local variables:
- fill-column: 79
- End:
-