Commit | Line | Data |
---|---|---|
252b5132 | 1 | -*- text -*- |
83518699 | 2 | |
ed769ec1 NC |
3 | * Limited support for Mapping Symbols as specified in the ARM ELF specification |
4 | has been added to the arm assembler. | |
5 | ||
0bbf2aa4 NC |
6 | * On ARM architectures, added a new gas directive ".unreq" that undoes |
7 | definitions created by ".req". | |
8 | ||
3e602632 NC |
9 | * Support for Motorola ColdFire MCF528x added. |
10 | ||
05da4302 NC |
11 | * Added --gstabs+ switch to enable the generation of STABS debug format |
12 | information with GNU extensions. | |
13 | ||
6a265366 CD |
14 | * Added support for MIPS64 Release 2. |
15 | ||
8ad30312 NC |
16 | * Added support for v850e1. |
17 | ||
12b55ccc L |
18 | * Added -n switch for x86 assembler. By default, x86 GAS replaces |
19 | multiple nop instructions used for alignment within code sections | |
20 | with multi-byte nop instructions such as leal 0(%esi,1),%esi. This | |
21 | switch disables the optimization. | |
22 | ||
43c58ae6 CD |
23 | Changes in 2.14: |
24 | ||
69be0a2b CD |
25 | * Added support for MIPS32 Release 2. |
26 | ||
e8fd7476 NC |
27 | * Added support for Xtensa architecture. |
28 | ||
e16bb312 NC |
29 | * Support for Intel's iWMMXt processor (an ARM variant) added. |
30 | ||
cce4814f NC |
31 | * An assembler test generator has been contributed and an example file that |
32 | uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c). | |
33 | ||
5177500f NC |
34 | * Support for SH2E added. |
35 | ||
fea17916 NC |
36 | * GASP has now been removed. |
37 | ||
004d9caf NC |
38 | * Support for Texas Instruments TMS320C4x and TMS320C3x series of |
39 | DSP's contributed by Michael Hayes and Svein E. Seldal. | |
026df7c5 | 40 | |
a40cbfa3 NC |
41 | * Support for the Ubicom IP2xxx microcontroller added. |
42 | ||
2cbb2eef NC |
43 | Changes in 2.13: |
44 | ||
a40cbfa3 NC |
45 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
46 | and FR500 included. | |
0ebb9a87 | 47 | |
a40cbfa3 | 48 | * Support for DLX processor added. |
52216602 | 49 | |
a40cbfa3 NC |
50 | * GASP has now been deprecated and will be removed in a future release. Use |
51 | the macro facilities in GAS instead. | |
3f965e60 | 52 | |
a40cbfa3 NC |
53 | * GASP now correctly parses floating point numbers. Unless the base is |
54 | explicitly specified, they are interpreted as decimal numbers regardless of | |
55 | the currently specified base. | |
1ac57253 | 56 | |
9a66911f NC |
57 | Changes in 2.12: |
58 | ||
a40cbfa3 | 59 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
49fda6c8 | 60 | |
a40cbfa3 | 61 | * Support for the OpenRISC 32-bit embedded processor by OpenCores. |
3b16e843 | 62 | |
a40cbfa3 NC |
63 | * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for |
64 | specifying the target instruction set. The old method of specifying the | |
65 | target processor has been deprecated, but is still accepted for | |
66 | compatibility. | |
03b1477f | 67 | |
a40cbfa3 NC |
68 | * Support for the VFP floating-point instruction set has been added to |
69 | the ARM assembler. | |
252b5132 | 70 | |
a40cbfa3 NC |
71 | * New psuedo op: .incbin to include a set of binary data at a given point |
72 | in the assembly. Contributed by Anders Norlander. | |
7e005732 | 73 | |
a40cbfa3 NC |
74 | * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated |
75 | but still works for compatability. | |
ec68c924 | 76 | |
a40cbfa3 NC |
77 | * The MIPS assembler no longer issues a warning by default when it |
78 | generates a nop instruction from a macro. The new command line option | |
79 | -n will turn on the warning. | |
63486801 | 80 | |
2dac7317 JW |
81 | Changes in 2.11: |
82 | ||
500800ca NC |
83 | * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff. |
84 | ||
a40cbfa3 | 85 | * x86 gas now supports the full Pentium4 instruction set. |
a167610d | 86 | |
a40cbfa3 | 87 | * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs. |
c0d8940f | 88 | |
a40cbfa3 | 89 | * Support for Motorola 68HC11 and 68HC12. |
df86943d | 90 | |
a40cbfa3 | 91 | * Support for Texas Instruments TMS320C54x (tic54x). |
39bec121 | 92 | |
a40cbfa3 | 93 | * Support for IA-64. |
2dac7317 | 94 | |
a40cbfa3 | 95 | * Support for i860, by Jason Eckhardt. |
22b36938 | 96 | |
a40cbfa3 | 97 | * Support for CRIS (Axis Communications ETRAX series). |
5bcac8a4 | 98 | |
a40cbfa3 | 99 | * x86 gas has a new .arch pseudo op to specify the target CPU architecture. |
a38cf1db | 100 | |
a40cbfa3 NC |
101 | * x86 gas -q command line option quietens warnings about register size changes |
102 | due to suffix, indirect jmp/call without `*', stand-alone prefixes, and | |
103 | translating various deprecated floating point instructions. | |
a38cf1db | 104 | |
252b5132 RH |
105 | Changes in 2.10: |
106 | ||
a40cbfa3 NC |
107 | * Support for the ARM msr instruction was changed to only allow an immediate |
108 | operand when altering the flags field. | |
d14442f4 | 109 | |
a40cbfa3 | 110 | * Support for ATMEL AVR. |
adde6300 | 111 | |
a40cbfa3 | 112 | * Support for IBM 370 ELF. Somewhat experimental. |
b5ebe70e | 113 | |
a40cbfa3 | 114 | * Support for numbers with suffixes. |
3fd9f047 | 115 | |
a40cbfa3 | 116 | * Added support for breaking to the end of repeat loops. |
6a6987a9 | 117 | |
a40cbfa3 | 118 | * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL). |
6a6987a9 | 119 | |
a40cbfa3 | 120 | * New .elseif pseudo-op added. |
3fd9f047 | 121 | |
a40cbfa3 | 122 | * New --fatal-warnings option. |
1f776aa5 | 123 | |
a40cbfa3 | 124 | * picoJava architecture support added. |
252b5132 | 125 | |
a40cbfa3 | 126 | * Motorola MCore 210 processor support added. |
041dd5a9 | 127 | |
a40cbfa3 NC |
128 | * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386 |
129 | assembly programs with intel syntax. | |
252b5132 | 130 | |
a40cbfa3 | 131 | * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code. |
252b5132 | 132 | |
a40cbfa3 | 133 | * Added -gdwarf2 option to generate DWARF 2 debugging information. |
041dd5a9 | 134 | |
a40cbfa3 | 135 | * Full 16-bit mode support for i386. |
252b5132 | 136 | |
a40cbfa3 NC |
137 | * Greatly improved instruction operand checking for i386. This change will |
138 | produce errors or warnings on incorrect assembly code that previous versions | |
139 | of gas accepted. If you get unexpected messages from code that worked with | |
140 | older versions of gas, please double check the code before reporting a bug. | |
252b5132 | 141 | |
a40cbfa3 | 142 | * Weak symbol support added for COFF targets. |
252b5132 | 143 | |
a40cbfa3 | 144 | * Mitsubishi D30V support added. |
252b5132 | 145 | |
a40cbfa3 | 146 | * Texas Instruments c80 (tms320c80) support added. |
252b5132 | 147 | |
a40cbfa3 | 148 | * i960 ELF support added. |
bedf545c | 149 | |
a40cbfa3 | 150 | * ARM ELF support added. |
a057431b | 151 | |
252b5132 RH |
152 | Changes in 2.9: |
153 | ||
a40cbfa3 | 154 | * Texas Instruments c30 (tms320c30) support added. |
252b5132 | 155 | |
a40cbfa3 NC |
156 | * The assembler now optimizes the exception frame information generated by egcs |
157 | and gcc 2.8. The new --traditional-format option disables this optimization. | |
252b5132 | 158 | |
a40cbfa3 | 159 | * Added --gstabs option to generate stabs debugging information. |
252b5132 | 160 | |
a40cbfa3 NC |
161 | * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a |
162 | listing. | |
252b5132 | 163 | |
a40cbfa3 | 164 | * Added -MD option to print dependencies. |
252b5132 RH |
165 | |
166 | Changes in 2.8: | |
167 | ||
a40cbfa3 | 168 | * BeOS support added. |
252b5132 | 169 | |
a40cbfa3 | 170 | * MIPS16 support added. |
252b5132 | 171 | |
a40cbfa3 | 172 | * Motorola ColdFire 5200 support added (configure for m68k and use -m5200). |
252b5132 | 173 | |
a40cbfa3 | 174 | * Alpha/VMS support added. |
252b5132 | 175 | |
a40cbfa3 NC |
176 | * m68k options --base-size-default-16, --base-size-default-32, |
177 | --disp-size-default-16, and --disp-size-default-32 added. | |
252b5132 | 178 | |
a40cbfa3 NC |
179 | * The alignment directives now take an optional third argument, which is the |
180 | maximum number of bytes to skip. If doing the alignment would require | |
181 | skipping more than the given number of bytes, the alignment is not done at | |
182 | all. | |
252b5132 | 183 | |
a40cbfa3 | 184 | * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning. |
252b5132 | 185 | |
a40cbfa3 NC |
186 | * The -a option takes a new suboption, c (e.g., -alc), to skip false |
187 | conditionals in listings. | |
252b5132 | 188 | |
a40cbfa3 NC |
189 | * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if |
190 | the symbol is already defined. | |
252b5132 RH |
191 | |
192 | Changes in 2.7: | |
193 | ||
a40cbfa3 NC |
194 | * The PowerPC assembler now allows the use of symbolic register names (r0, |
195 | etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) | |
196 | can be used any time. PowerPC 860 move to/from SPR instructions have been | |
197 | added. | |
252b5132 | 198 | |
a40cbfa3 | 199 | * Alpha Linux (ELF) support added. |
252b5132 | 200 | |
a40cbfa3 | 201 | * PowerPC ELF support added. |
252b5132 | 202 | |
a40cbfa3 | 203 | * m68k Linux (ELF) support added. |
252b5132 | 204 | |
a40cbfa3 | 205 | * i960 Hx/Jx support added. |
252b5132 | 206 | |
a40cbfa3 | 207 | * i386/PowerPC gnu-win32 support added. |
252b5132 | 208 | |
a40cbfa3 NC |
209 | * SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the |
210 | default is to build COFF-only support. To get a set of tools that generate | |
211 | ELF (they'll understand both COFF and ELF), you must configure with | |
212 | target=i386-unknown-sco3.2v5elf. | |
252b5132 | 213 | |
a40cbfa3 | 214 | * m88k-motorola-sysv3* support added. |
252b5132 RH |
215 | |
216 | Changes in 2.6: | |
217 | ||
a40cbfa3 | 218 | * Gas now directly supports macros, without requiring GASP. |
252b5132 | 219 | |
a40cbfa3 NC |
220 | * Gas now has an MRI assembler compatibility mode. Use -M or --mri to select |
221 | MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the | |
222 | ``.mri 0'' is seen; this can be convenient for inline assembler code. | |
252b5132 | 223 | |
a40cbfa3 | 224 | * Added --defsym SYM=VALUE option. |
252b5132 | 225 | |
a40cbfa3 | 226 | * Added -mips4 support to MIPS assembler. |
252b5132 | 227 | |
a40cbfa3 | 228 | * Added PIC support to Solaris and SPARC SunOS 4 assembler. |
252b5132 RH |
229 | |
230 | Changes in 2.4: | |
231 | ||
a40cbfa3 | 232 | * Converted this directory to use an autoconf-generated configure script. |
252b5132 | 233 | |
a40cbfa3 | 234 | * ARM support, from Richard Earnshaw. |
252b5132 | 235 | |
a40cbfa3 NC |
236 | * Updated VMS support, from Pat Rankin, including considerably improved |
237 | debugging support. | |
252b5132 | 238 | |
a40cbfa3 | 239 | * Support for the control registers in the 68060. |
252b5132 | 240 | |
a40cbfa3 NC |
241 | * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to |
242 | provide for possible future gcc changes, for targets where gas provides some | |
243 | features not available in the native assembler. If the native assembler is | |
244 | used, it should become obvious pretty quickly what the problem is. | |
252b5132 | 245 | |
a40cbfa3 | 246 | * Usage message is available with "--help". |
252b5132 | 247 | |
a40cbfa3 NC |
248 | * The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3 |
249 | also, but didn't get into the NEWS file.) | |
252b5132 | 250 | |
a40cbfa3 | 251 | * Weak symbol support for a.out. |
252b5132 | 252 | |
a40cbfa3 NC |
253 | * A bug in the listing code which could cause an infinite loop has been fixed. |
254 | Bugs in listings when generating a COFF object file have also been fixed. | |
252b5132 | 255 | |
a40cbfa3 NC |
256 | * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by |
257 | Paul Kranenburg. | |
252b5132 | 258 | |
a40cbfa3 NC |
259 | * Improved Alpha support. Immediate constants can have a much larger range |
260 | now. Support for the 21164 has been contributed by Digital. | |
252b5132 | 261 | |
a40cbfa3 | 262 | * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall. |
252b5132 RH |
263 | |
264 | Changes in 2.3: | |
265 | ||
a40cbfa3 | 266 | * Mach i386 support, by David Mackenzie and Ken Raeburn. |
252b5132 | 267 | |
a40cbfa3 | 268 | * RS/6000 and PowerPC support by Ian Taylor. |
252b5132 | 269 | |
a40cbfa3 NC |
270 | * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit, |
271 | based on mail received from various people. The `-h#' option should work | |
272 | again too. | |
252b5132 | 273 | |
a40cbfa3 NC |
274 | * HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work |
275 | with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special | |
276 | version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve | |
277 | this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu | |
278 | in the "dist" directory. | |
252b5132 | 279 | |
a40cbfa3 NC |
280 | * Vax support in gas fixed for BSD, so it builds and seems to run a couple |
281 | simple tests okay. I haven't put it through extensive testing. (GNU make is | |
282 | currently required for BSD 4.3 builds.) | |
252b5132 | 283 | |
a40cbfa3 NC |
284 | * Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is |
285 | based on code donated by CMU, which used an a.out-based format. I'm afraid | |
286 | the alpha-a.out support is pretty badly mangled, and much of it removed; | |
287 | making it work will require rewriting it as BFD support for the format anyways. | |
252b5132 | 288 | |
a40cbfa3 | 289 | * Irix 5 support. |
252b5132 | 290 | |
a40cbfa3 NC |
291 | * The test suites have been fixed up a bit, so that they should work with a |
292 | couple different versions of expect and dejagnu. | |
252b5132 | 293 | |
a40cbfa3 NC |
294 | * Symbols' values are now handled internally as expressions, permitting more |
295 | flexibility in evaluating them in some cases. Some details of relocation | |
296 | handling have also changed, and simple constant pool management has been | |
297 | added, to make the Alpha port easier. | |
252b5132 | 298 | |
a40cbfa3 NC |
299 | * New option "--statistics" for printing out program run times. This is |
300 | intended to be used with the gcc "-Q" option, which prints out times spent in | |
301 | various phases of compilation. (You should be able to get all of them | |
302 | printed out with "gcc -Q -Wa,--statistics", I think.) | |
252b5132 RH |
303 | |
304 | Changes in 2.2: | |
305 | ||
a40cbfa3 | 306 | * RS/6000 AIX and MIPS SGI Irix 5 support has been added. |
252b5132 | 307 | |
a40cbfa3 NC |
308 | * Configurations that are still in development (and therefore are convenient to |
309 | have listed in configure.in) still get rejected without a minor change to | |
310 | gas/Makefile.in, so people not doing development work shouldn't get the | |
311 | impression that support for such configurations is actually believed to be | |
312 | reliable. | |
252b5132 | 313 | |
a40cbfa3 NC |
314 | * The program name (usually "as") is printed when a fatal error message is |
315 | displayed. This should prevent some confusion about the source of occasional | |
316 | messages about "internal errors". | |
252b5132 | 317 | |
a40cbfa3 NC |
318 | * ELF support is falling into place. Support for the 386 should be working. |
319 | Support for SPARC Solaris is in. HPPA support from Utah is being integrated. | |
252b5132 | 320 | |
a40cbfa3 NC |
321 | * Symbol values are maintained as expressions instead of being immediately |
322 | boiled down to add-symbol, sub-symbol, and constant. This permits slightly | |
323 | more complex calculations involving symbols whose values are not alreadey | |
324 | known. | |
252b5132 | 325 | |
a40cbfa3 NC |
326 | * DBX-style debugging info ("stabs") is now supported for COFF formats. |
327 | If any stabs directives are seen in the source, GAS will create two new | |
328 | sections: a ".stab" and a ".stabstr" section. The format of the .stab | |
329 | section is nearly identical to the a.out symbol format, and .stabstr is | |
330 | its string table. For this to be useful, you must have configured GCC | |
331 | to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB | |
332 | that can use the stab sections (4.11 or later). | |
252b5132 | 333 | |
a40cbfa3 NC |
334 | * LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS |
335 | support is in progress. | |
252b5132 RH |
336 | |
337 | Changes in 2.1: | |
338 | ||
a40cbfa3 NC |
339 | * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been |
340 | incorporated, but not well tested yet. | |
252b5132 | 341 | |
a40cbfa3 NC |
342 | * Altered the opcode table split for m68k; it should require less VM to compile |
343 | with gcc now. | |
252b5132 | 344 | |
a40cbfa3 NC |
345 | * Some minor adjustments to add (Convergent Technologies') Miniframe support, |
346 | suggested by Ronald Cole. | |
252b5132 | 347 | |
a40cbfa3 NC |
348 | * HPPA support (running OSF only, not HPUX) has been contributed by Utah. This |
349 | includes improved ELF support, which I've started adapting for SPARC Solaris | |
350 | 2.x. Integration isn't completely, so it probably won't work. | |
252b5132 | 351 | |
a40cbfa3 | 352 | * HP9000/300 support, donated by HP, has been merged in. |
252b5132 | 353 | |
a40cbfa3 | 354 | * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support. |
252b5132 | 355 | |
a40cbfa3 | 356 | * Better error messages for unsupported configurations (e.g., hppa-hpux). |
252b5132 | 357 | |
a40cbfa3 | 358 | * Test suite framework is starting to become reasonable. |
252b5132 RH |
359 | |
360 | Changes in 2.0: | |
361 | ||
a40cbfa3 | 362 | * Mostly bug fixes. |
252b5132 | 363 | |
a40cbfa3 | 364 | * Some more merging of BFD and ELF code, but ELF still doesn't work. |
252b5132 RH |
365 | |
366 | Changes in 1.94: | |
367 | ||
a40cbfa3 NC |
368 | * BFD merge is partly done. Adventurous souls may try giving configure the |
369 | "--with-bfd-assembler" option. Currently, ELF format requires it, a.out | |
370 | format accepts it; SPARC CPU accepts it. It's the default only for OS "elf" | |
371 | or "solaris". (ELF isn't really supported yet. It needs work. I've got | |
372 | some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not | |
373 | fully merged yet.) | |
252b5132 | 374 | |
a40cbfa3 NC |
375 | * The 68K opcode table has been split in half. It should now compile under gcc |
376 | without consuming ridiculous amounts of memory. | |
252b5132 | 377 | |
a40cbfa3 NC |
378 | * A couple data structures have been reduced in size. This should result in |
379 | saving a little bit of space at runtime. | |
252b5132 | 380 | |
a40cbfa3 NC |
381 | * Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF |
382 | code provided ROSE format support, which I haven't merged in yet. (I can | |
383 | make it available, if anyone wants to try it out.) Ralph's code, for BSD | |
384 | 4.4, supports a.out format. We don't have ECOFF support in just yet; it's | |
385 | coming. | |
252b5132 | 386 | |
a40cbfa3 | 387 | * Support for the Hitachi H8/500 has been added. |
252b5132 | 388 | |
a40cbfa3 NC |
389 | * VMS host and target support should be working now, thanks chiefly to Eric |
390 | Youngdale. | |
252b5132 RH |
391 | |
392 | Changes in 1.93.01: | |
393 | ||
a40cbfa3 | 394 | * For m68k, support for more processors has been added: 68040, CPU32, 68851. |
252b5132 | 395 | |
a40cbfa3 | 396 | * For i386, .align is now power-of-two; was number-of-bytes. |
252b5132 | 397 | |
a40cbfa3 NC |
398 | * For m68k, "%" is now accepted before register names. For COFF format, which |
399 | doesn't use underscore prefixes for C labels, it is required, so variable "a0" | |
400 | can be distinguished from the register. | |
252b5132 | 401 | |
a40cbfa3 NC |
402 | * Last public release was 1.38. Lots of configuration changes since then, lots |
403 | of new CPUs and formats, lots of bugs fixed. | |
252b5132 RH |
404 | |
405 | \f | |
406 | Local variables: | |
407 | fill-column: 79 | |
408 | End: |