Commit | Line | Data |
---|---|---|
252b5132 | 1 | -*- text -*- |
6e33da12 TG |
2 | |
3 | Changes in 2.19: | |
4 | ||
6fd4f6cc DD |
5 | * New command line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which |
6 | adds compatibility with H'00 style hex constants. | |
7 | ||
daf50ae7 L |
8 | * New command line option, -msse-check=[none|error|warning], for x86 |
9 | targets. | |
10 | ||
83f10cb2 NC |
11 | * New sub-option added to the assembler's -a command line switch to |
12 | generate a listing output. The 'g' sub-option will insert into the listing | |
13 | various information about the assembly, such as assembler version, the | |
14 | command line options used, and a time stamp. | |
15 | ||
c0f3af97 L |
16 | * New command line option -msse2avx for x86 target to encode SSE |
17 | instructions with VEX prefix. | |
18 | ||
f1f8f695 | 19 | * Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target. |
c0f3af97 | 20 | |
ae40c993 L |
21 | * New command line options, -march=CPU[,+EXTENSION...], -mtune=CPU, |
22 | -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg, | |
23 | -mnaked-reg and -mold-gcc, for x86 targets. | |
24 | ||
38a57ae7 NC |
25 | * Support for generating wide character strings has been added via the new |
26 | pseudo ops: .string16, .string32 and .string64. | |
27 | ||
85f10a01 MM |
28 | * Support for SSE5 has been added to the i386 port. |
29 | ||
7c3d153f NC |
30 | Changes in 2.18: |
31 | ||
ec2655a6 NC |
32 | * The GAS sources are now released under the GPLv3. |
33 | ||
3d3d428f NC |
34 | * Support for the National Semiconductor CR16 target has been added. |
35 | ||
3f9ce309 AM |
36 | * Added gas .reloc pseudo. This is a low-level interface for creating |
37 | relocations. | |
38 | ||
99ad8390 NC |
39 | * Add support for x86_64 PE+ target. |
40 | ||
1c0d3aa6 | 41 | * Add support for Score target. |
83518699 | 42 | |
ec2655a6 NC |
43 | Changes in 2.17: |
44 | ||
d70c5fc7 NC |
45 | * Support for the Infineon XC16X has been added by KPIT Cummins Infosystems. |
46 | ||
08333dc4 NS |
47 | * Support for ms2 architecture has been added. |
48 | ||
b7b8fb1d NC |
49 | * Support for the Z80 processor family has been added. |
50 | ||
3e8a519c MM |
51 | * Add support for the "@<file>" syntax to the command line, so that extra |
52 | switches can be read from <file>. | |
53 | ||
37dedf66 NC |
54 | * The SH target supports a new command line switch --enable-reg-prefix which, |
55 | if enabled, will allow register names to be optionally prefixed with a $ | |
56 | character. This allows register names to be distinguished from label names. | |
57 | ||
6eaeac8a JB |
58 | * Macros with a variable number of arguments are now supported. See the |
59 | documentation for how this works. | |
60 | ||
4bdd3565 NC |
61 | * Added --reduce-memory-overheads switch to reduce the size of the hash |
62 | tables used, at the expense of longer assembly times, and | |
63 | --hash-size=<NUMBER> to set the size of the hash tables used by gas. | |
64 | ||
5e75c3ab JB |
65 | * Macro names and macro parameter names can now be any identifier that would |
66 | also be legal as a symbol elsewhere. For macro parameter names, this is | |
67 | known to cause problems in certain sources when the respective target uses | |
68 | characters inconsistently, and thus macro parameter references may no longer | |
69 | be recognized as such (see the documentation for details). | |
4bdd3565 | 70 | |
d2c5f73e NC |
71 | * Support the .f_floating, .d_floating, .g_floating and .h_floating directives |
72 | for the VAX target in order to be more compatible with the VAX MACRO | |
73 | assembler. | |
74 | ||
8c2fda1d L |
75 | * New command line option -mtune=[itanium1|itanium2] for IA64 targets. |
76 | ||
957d91c1 NC |
77 | Changes in 2.16: |
78 | ||
fffeaa5f JB |
79 | * Redefinition of macros now results in an error. |
80 | ||
91d777ee L |
81 | * New command line option -mhint.b=[ok|warning|error] for IA64 targets. |
82 | ||
970d6792 L |
83 | * New command line option -munwind-check=[warning|error] for IA64 |
84 | targets. | |
85 | ||
f1dab70d JB |
86 | * The IA64 port now uses automatic dependency violation removal as its default |
87 | mode. | |
88 | ||
7499d566 NC |
89 | * Port to MAXQ processor contributed by HCL Tech. |
90 | ||
7ed4c4c5 NC |
91 | * Added support for generating unwind tables for ARM ELF targets. |
92 | ||
329e276d NC |
93 | * Add a -g command line option to generate debug information in the target's |
94 | preferred debug format. | |
95 | ||
1fe1f39c NC |
96 | * Support for the crx-elf target added. |
97 | ||
1a320fbb | 98 | * Support for the sh-symbianelf target added. |
1fe1f39c | 99 | |
0503b355 BF |
100 | * Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations |
101 | on pe[i]-i386; required for this target's DWARF 2 support. | |
102 | ||
6b6e92f4 NC |
103 | * Support for Motorola MCF521x/5249/547x/548x added. |
104 | ||
fd99574b NC |
105 | * Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC |
106 | instrucitons. | |
107 | ||
aa6975fb ILT |
108 | * New command line option -mno-shared for MIPS ELF targets. |
109 | ||
caa32fe5 NC |
110 | * New command line option --alternate and pseudo-ops .altmacro and .noaltmacro |
111 | added to enter (and leave) alternate macro syntax mode. | |
112 | ||
0477af35 NC |
113 | Changes in 2.15: |
114 | ||
7a7f4e42 CD |
115 | * The MIPS -membedded-pic option (Embedded-PIC code generation) is |
116 | deprecated and will be removed in a future release. | |
117 | ||
6edf0760 NC |
118 | * Added PIC m32r Linux (ELF) and support to M32R assembler. |
119 | ||
09d92015 MM |
120 | * Added support for ARM V6. |
121 | ||
88da98f3 MS |
122 | * Added support for sh4a and variants. |
123 | ||
eb764db8 NC |
124 | * Support for Renesas M32R2 added. |
125 | ||
88da98f3 MS |
126 | * Limited support for Mapping Symbols as specified in the ARM ELF |
127 | specification has been added to the arm assembler. | |
ed769ec1 | 128 | |
0bbf2aa4 NC |
129 | * On ARM architectures, added a new gas directive ".unreq" that undoes |
130 | definitions created by ".req". | |
131 | ||
3e602632 NC |
132 | * Support for Motorola ColdFire MCF528x added. |
133 | ||
05da4302 NC |
134 | * Added --gstabs+ switch to enable the generation of STABS debug format |
135 | information with GNU extensions. | |
136 | ||
6a265366 CD |
137 | * Added support for MIPS64 Release 2. |
138 | ||
8ad30312 NC |
139 | * Added support for v850e1. |
140 | ||
12b55ccc L |
141 | * Added -n switch for x86 assembler. By default, x86 GAS replaces |
142 | multiple nop instructions used for alignment within code sections | |
143 | with multi-byte nop instructions such as leal 0(%esi,1),%esi. This | |
144 | switch disables the optimization. | |
145 | ||
78849248 ILT |
146 | * Removed -n option from MIPS assembler. It was not useful, and confused the |
147 | existing -non_shared option. | |
148 | ||
43c58ae6 CD |
149 | Changes in 2.14: |
150 | ||
69be0a2b CD |
151 | * Added support for MIPS32 Release 2. |
152 | ||
e8fd7476 NC |
153 | * Added support for Xtensa architecture. |
154 | ||
e16bb312 NC |
155 | * Support for Intel's iWMMXt processor (an ARM variant) added. |
156 | ||
cce4814f NC |
157 | * An assembler test generator has been contributed and an example file that |
158 | uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c). | |
159 | ||
5177500f NC |
160 | * Support for SH2E added. |
161 | ||
fea17916 NC |
162 | * GASP has now been removed. |
163 | ||
004d9caf NC |
164 | * Support for Texas Instruments TMS320C4x and TMS320C3x series of |
165 | DSP's contributed by Michael Hayes and Svein E. Seldal. | |
026df7c5 | 166 | |
a40cbfa3 NC |
167 | * Support for the Ubicom IP2xxx microcontroller added. |
168 | ||
2cbb2eef NC |
169 | Changes in 2.13: |
170 | ||
a40cbfa3 NC |
171 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
172 | and FR500 included. | |
0ebb9a87 | 173 | |
a40cbfa3 | 174 | * Support for DLX processor added. |
52216602 | 175 | |
a40cbfa3 NC |
176 | * GASP has now been deprecated and will be removed in a future release. Use |
177 | the macro facilities in GAS instead. | |
3f965e60 | 178 | |
a40cbfa3 NC |
179 | * GASP now correctly parses floating point numbers. Unless the base is |
180 | explicitly specified, they are interpreted as decimal numbers regardless of | |
181 | the currently specified base. | |
1ac57253 | 182 | |
9a66911f NC |
183 | Changes in 2.12: |
184 | ||
a40cbfa3 | 185 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
49fda6c8 | 186 | |
a40cbfa3 | 187 | * Support for the OpenRISC 32-bit embedded processor by OpenCores. |
3b16e843 | 188 | |
a40cbfa3 NC |
189 | * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for |
190 | specifying the target instruction set. The old method of specifying the | |
191 | target processor has been deprecated, but is still accepted for | |
192 | compatibility. | |
03b1477f | 193 | |
a40cbfa3 NC |
194 | * Support for the VFP floating-point instruction set has been added to |
195 | the ARM assembler. | |
252b5132 | 196 | |
a40cbfa3 NC |
197 | * New psuedo op: .incbin to include a set of binary data at a given point |
198 | in the assembly. Contributed by Anders Norlander. | |
7e005732 | 199 | |
a40cbfa3 NC |
200 | * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated |
201 | but still works for compatability. | |
ec68c924 | 202 | |
a40cbfa3 NC |
203 | * The MIPS assembler no longer issues a warning by default when it |
204 | generates a nop instruction from a macro. The new command line option | |
205 | -n will turn on the warning. | |
63486801 | 206 | |
2dac7317 JW |
207 | Changes in 2.11: |
208 | ||
500800ca NC |
209 | * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff. |
210 | ||
a40cbfa3 | 211 | * x86 gas now supports the full Pentium4 instruction set. |
a167610d | 212 | |
a40cbfa3 | 213 | * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs. |
c0d8940f | 214 | |
a40cbfa3 | 215 | * Support for Motorola 68HC11 and 68HC12. |
df86943d | 216 | |
a40cbfa3 | 217 | * Support for Texas Instruments TMS320C54x (tic54x). |
39bec121 | 218 | |
a40cbfa3 | 219 | * Support for IA-64. |
2dac7317 | 220 | |
a40cbfa3 | 221 | * Support for i860, by Jason Eckhardt. |
22b36938 | 222 | |
a40cbfa3 | 223 | * Support for CRIS (Axis Communications ETRAX series). |
5bcac8a4 | 224 | |
a40cbfa3 | 225 | * x86 gas has a new .arch pseudo op to specify the target CPU architecture. |
a38cf1db | 226 | |
a40cbfa3 NC |
227 | * x86 gas -q command line option quietens warnings about register size changes |
228 | due to suffix, indirect jmp/call without `*', stand-alone prefixes, and | |
229 | translating various deprecated floating point instructions. | |
a38cf1db | 230 | |
252b5132 RH |
231 | Changes in 2.10: |
232 | ||
a40cbfa3 NC |
233 | * Support for the ARM msr instruction was changed to only allow an immediate |
234 | operand when altering the flags field. | |
d14442f4 | 235 | |
a40cbfa3 | 236 | * Support for ATMEL AVR. |
adde6300 | 237 | |
a40cbfa3 | 238 | * Support for IBM 370 ELF. Somewhat experimental. |
b5ebe70e | 239 | |
a40cbfa3 | 240 | * Support for numbers with suffixes. |
3fd9f047 | 241 | |
a40cbfa3 | 242 | * Added support for breaking to the end of repeat loops. |
6a6987a9 | 243 | |
a40cbfa3 | 244 | * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL). |
6a6987a9 | 245 | |
a40cbfa3 | 246 | * New .elseif pseudo-op added. |
3fd9f047 | 247 | |
a40cbfa3 | 248 | * New --fatal-warnings option. |
1f776aa5 | 249 | |
a40cbfa3 | 250 | * picoJava architecture support added. |
252b5132 | 251 | |
a40cbfa3 | 252 | * Motorola MCore 210 processor support added. |
041dd5a9 | 253 | |
a40cbfa3 NC |
254 | * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386 |
255 | assembly programs with intel syntax. | |
252b5132 | 256 | |
a40cbfa3 | 257 | * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code. |
252b5132 | 258 | |
a40cbfa3 | 259 | * Added -gdwarf2 option to generate DWARF 2 debugging information. |
041dd5a9 | 260 | |
a40cbfa3 | 261 | * Full 16-bit mode support for i386. |
252b5132 | 262 | |
a40cbfa3 NC |
263 | * Greatly improved instruction operand checking for i386. This change will |
264 | produce errors or warnings on incorrect assembly code that previous versions | |
265 | of gas accepted. If you get unexpected messages from code that worked with | |
266 | older versions of gas, please double check the code before reporting a bug. | |
252b5132 | 267 | |
a40cbfa3 | 268 | * Weak symbol support added for COFF targets. |
252b5132 | 269 | |
a40cbfa3 | 270 | * Mitsubishi D30V support added. |
252b5132 | 271 | |
a40cbfa3 | 272 | * Texas Instruments c80 (tms320c80) support added. |
252b5132 | 273 | |
a40cbfa3 | 274 | * i960 ELF support added. |
bedf545c | 275 | |
a40cbfa3 | 276 | * ARM ELF support added. |
a057431b | 277 | |
252b5132 RH |
278 | Changes in 2.9: |
279 | ||
a40cbfa3 | 280 | * Texas Instruments c30 (tms320c30) support added. |
252b5132 | 281 | |
a40cbfa3 NC |
282 | * The assembler now optimizes the exception frame information generated by egcs |
283 | and gcc 2.8. The new --traditional-format option disables this optimization. | |
252b5132 | 284 | |
a40cbfa3 | 285 | * Added --gstabs option to generate stabs debugging information. |
252b5132 | 286 | |
a40cbfa3 NC |
287 | * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a |
288 | listing. | |
252b5132 | 289 | |
a40cbfa3 | 290 | * Added -MD option to print dependencies. |
252b5132 RH |
291 | |
292 | Changes in 2.8: | |
293 | ||
a40cbfa3 | 294 | * BeOS support added. |
252b5132 | 295 | |
a40cbfa3 | 296 | * MIPS16 support added. |
252b5132 | 297 | |
a40cbfa3 | 298 | * Motorola ColdFire 5200 support added (configure for m68k and use -m5200). |
252b5132 | 299 | |
a40cbfa3 | 300 | * Alpha/VMS support added. |
252b5132 | 301 | |
a40cbfa3 NC |
302 | * m68k options --base-size-default-16, --base-size-default-32, |
303 | --disp-size-default-16, and --disp-size-default-32 added. | |
252b5132 | 304 | |
a40cbfa3 NC |
305 | * The alignment directives now take an optional third argument, which is the |
306 | maximum number of bytes to skip. If doing the alignment would require | |
307 | skipping more than the given number of bytes, the alignment is not done at | |
308 | all. | |
252b5132 | 309 | |
a40cbfa3 | 310 | * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning. |
252b5132 | 311 | |
a40cbfa3 NC |
312 | * The -a option takes a new suboption, c (e.g., -alc), to skip false |
313 | conditionals in listings. | |
252b5132 | 314 | |
a40cbfa3 NC |
315 | * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if |
316 | the symbol is already defined. | |
252b5132 RH |
317 | |
318 | Changes in 2.7: | |
319 | ||
a40cbfa3 NC |
320 | * The PowerPC assembler now allows the use of symbolic register names (r0, |
321 | etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) | |
322 | can be used any time. PowerPC 860 move to/from SPR instructions have been | |
323 | added. | |
252b5132 | 324 | |
a40cbfa3 | 325 | * Alpha Linux (ELF) support added. |
252b5132 | 326 | |
a40cbfa3 | 327 | * PowerPC ELF support added. |
252b5132 | 328 | |
a40cbfa3 | 329 | * m68k Linux (ELF) support added. |
252b5132 | 330 | |
a40cbfa3 | 331 | * i960 Hx/Jx support added. |
252b5132 | 332 | |
a40cbfa3 | 333 | * i386/PowerPC gnu-win32 support added. |
252b5132 | 334 | |
a40cbfa3 NC |
335 | * SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the |
336 | default is to build COFF-only support. To get a set of tools that generate | |
337 | ELF (they'll understand both COFF and ELF), you must configure with | |
338 | target=i386-unknown-sco3.2v5elf. | |
252b5132 | 339 | |
a40cbfa3 | 340 | * m88k-motorola-sysv3* support added. |
252b5132 RH |
341 | |
342 | Changes in 2.6: | |
343 | ||
a40cbfa3 | 344 | * Gas now directly supports macros, without requiring GASP. |
252b5132 | 345 | |
a40cbfa3 NC |
346 | * Gas now has an MRI assembler compatibility mode. Use -M or --mri to select |
347 | MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the | |
348 | ``.mri 0'' is seen; this can be convenient for inline assembler code. | |
252b5132 | 349 | |
a40cbfa3 | 350 | * Added --defsym SYM=VALUE option. |
252b5132 | 351 | |
a40cbfa3 | 352 | * Added -mips4 support to MIPS assembler. |
252b5132 | 353 | |
a40cbfa3 | 354 | * Added PIC support to Solaris and SPARC SunOS 4 assembler. |
252b5132 RH |
355 | |
356 | Changes in 2.4: | |
357 | ||
a40cbfa3 | 358 | * Converted this directory to use an autoconf-generated configure script. |
252b5132 | 359 | |
a40cbfa3 | 360 | * ARM support, from Richard Earnshaw. |
252b5132 | 361 | |
a40cbfa3 NC |
362 | * Updated VMS support, from Pat Rankin, including considerably improved |
363 | debugging support. | |
252b5132 | 364 | |
a40cbfa3 | 365 | * Support for the control registers in the 68060. |
252b5132 | 366 | |
a40cbfa3 NC |
367 | * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to |
368 | provide for possible future gcc changes, for targets where gas provides some | |
369 | features not available in the native assembler. If the native assembler is | |
370 | used, it should become obvious pretty quickly what the problem is. | |
252b5132 | 371 | |
a40cbfa3 | 372 | * Usage message is available with "--help". |
252b5132 | 373 | |
a40cbfa3 NC |
374 | * The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3 |
375 | also, but didn't get into the NEWS file.) | |
252b5132 | 376 | |
a40cbfa3 | 377 | * Weak symbol support for a.out. |
252b5132 | 378 | |
a40cbfa3 NC |
379 | * A bug in the listing code which could cause an infinite loop has been fixed. |
380 | Bugs in listings when generating a COFF object file have also been fixed. | |
252b5132 | 381 | |
a40cbfa3 NC |
382 | * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by |
383 | Paul Kranenburg. | |
252b5132 | 384 | |
a40cbfa3 NC |
385 | * Improved Alpha support. Immediate constants can have a much larger range |
386 | now. Support for the 21164 has been contributed by Digital. | |
252b5132 | 387 | |
a40cbfa3 | 388 | * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall. |
252b5132 RH |
389 | |
390 | Changes in 2.3: | |
391 | ||
a40cbfa3 | 392 | * Mach i386 support, by David Mackenzie and Ken Raeburn. |
252b5132 | 393 | |
a40cbfa3 | 394 | * RS/6000 and PowerPC support by Ian Taylor. |
252b5132 | 395 | |
a40cbfa3 NC |
396 | * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit, |
397 | based on mail received from various people. The `-h#' option should work | |
398 | again too. | |
252b5132 | 399 | |
a40cbfa3 NC |
400 | * HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work |
401 | with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special | |
402 | version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve | |
403 | this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu | |
404 | in the "dist" directory. | |
252b5132 | 405 | |
a40cbfa3 NC |
406 | * Vax support in gas fixed for BSD, so it builds and seems to run a couple |
407 | simple tests okay. I haven't put it through extensive testing. (GNU make is | |
408 | currently required for BSD 4.3 builds.) | |
252b5132 | 409 | |
a40cbfa3 NC |
410 | * Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is |
411 | based on code donated by CMU, which used an a.out-based format. I'm afraid | |
412 | the alpha-a.out support is pretty badly mangled, and much of it removed; | |
413 | making it work will require rewriting it as BFD support for the format anyways. | |
252b5132 | 414 | |
a40cbfa3 | 415 | * Irix 5 support. |
252b5132 | 416 | |
a40cbfa3 NC |
417 | * The test suites have been fixed up a bit, so that they should work with a |
418 | couple different versions of expect and dejagnu. | |
252b5132 | 419 | |
a40cbfa3 NC |
420 | * Symbols' values are now handled internally as expressions, permitting more |
421 | flexibility in evaluating them in some cases. Some details of relocation | |
422 | handling have also changed, and simple constant pool management has been | |
423 | added, to make the Alpha port easier. | |
252b5132 | 424 | |
a40cbfa3 NC |
425 | * New option "--statistics" for printing out program run times. This is |
426 | intended to be used with the gcc "-Q" option, which prints out times spent in | |
427 | various phases of compilation. (You should be able to get all of them | |
428 | printed out with "gcc -Q -Wa,--statistics", I think.) | |
252b5132 RH |
429 | |
430 | Changes in 2.2: | |
431 | ||
a40cbfa3 | 432 | * RS/6000 AIX and MIPS SGI Irix 5 support has been added. |
252b5132 | 433 | |
a40cbfa3 NC |
434 | * Configurations that are still in development (and therefore are convenient to |
435 | have listed in configure.in) still get rejected without a minor change to | |
436 | gas/Makefile.in, so people not doing development work shouldn't get the | |
437 | impression that support for such configurations is actually believed to be | |
438 | reliable. | |
252b5132 | 439 | |
a40cbfa3 NC |
440 | * The program name (usually "as") is printed when a fatal error message is |
441 | displayed. This should prevent some confusion about the source of occasional | |
442 | messages about "internal errors". | |
252b5132 | 443 | |
a40cbfa3 NC |
444 | * ELF support is falling into place. Support for the 386 should be working. |
445 | Support for SPARC Solaris is in. HPPA support from Utah is being integrated. | |
252b5132 | 446 | |
a40cbfa3 NC |
447 | * Symbol values are maintained as expressions instead of being immediately |
448 | boiled down to add-symbol, sub-symbol, and constant. This permits slightly | |
449 | more complex calculations involving symbols whose values are not alreadey | |
450 | known. | |
252b5132 | 451 | |
a40cbfa3 NC |
452 | * DBX-style debugging info ("stabs") is now supported for COFF formats. |
453 | If any stabs directives are seen in the source, GAS will create two new | |
454 | sections: a ".stab" and a ".stabstr" section. The format of the .stab | |
455 | section is nearly identical to the a.out symbol format, and .stabstr is | |
456 | its string table. For this to be useful, you must have configured GCC | |
457 | to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB | |
458 | that can use the stab sections (4.11 or later). | |
252b5132 | 459 | |
a40cbfa3 NC |
460 | * LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS |
461 | support is in progress. | |
252b5132 RH |
462 | |
463 | Changes in 2.1: | |
464 | ||
a40cbfa3 NC |
465 | * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been |
466 | incorporated, but not well tested yet. | |
252b5132 | 467 | |
a40cbfa3 NC |
468 | * Altered the opcode table split for m68k; it should require less VM to compile |
469 | with gcc now. | |
252b5132 | 470 | |
a40cbfa3 NC |
471 | * Some minor adjustments to add (Convergent Technologies') Miniframe support, |
472 | suggested by Ronald Cole. | |
252b5132 | 473 | |
a40cbfa3 NC |
474 | * HPPA support (running OSF only, not HPUX) has been contributed by Utah. This |
475 | includes improved ELF support, which I've started adapting for SPARC Solaris | |
476 | 2.x. Integration isn't completely, so it probably won't work. | |
252b5132 | 477 | |
a40cbfa3 | 478 | * HP9000/300 support, donated by HP, has been merged in. |
252b5132 | 479 | |
a40cbfa3 | 480 | * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support. |
252b5132 | 481 | |
a40cbfa3 | 482 | * Better error messages for unsupported configurations (e.g., hppa-hpux). |
252b5132 | 483 | |
a40cbfa3 | 484 | * Test suite framework is starting to become reasonable. |
252b5132 RH |
485 | |
486 | Changes in 2.0: | |
487 | ||
a40cbfa3 | 488 | * Mostly bug fixes. |
252b5132 | 489 | |
a40cbfa3 | 490 | * Some more merging of BFD and ELF code, but ELF still doesn't work. |
252b5132 RH |
491 | |
492 | Changes in 1.94: | |
493 | ||
a40cbfa3 NC |
494 | * BFD merge is partly done. Adventurous souls may try giving configure the |
495 | "--with-bfd-assembler" option. Currently, ELF format requires it, a.out | |
496 | format accepts it; SPARC CPU accepts it. It's the default only for OS "elf" | |
497 | or "solaris". (ELF isn't really supported yet. It needs work. I've got | |
498 | some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not | |
499 | fully merged yet.) | |
252b5132 | 500 | |
a40cbfa3 NC |
501 | * The 68K opcode table has been split in half. It should now compile under gcc |
502 | without consuming ridiculous amounts of memory. | |
252b5132 | 503 | |
a40cbfa3 NC |
504 | * A couple data structures have been reduced in size. This should result in |
505 | saving a little bit of space at runtime. | |
252b5132 | 506 | |
a40cbfa3 NC |
507 | * Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF |
508 | code provided ROSE format support, which I haven't merged in yet. (I can | |
509 | make it available, if anyone wants to try it out.) Ralph's code, for BSD | |
510 | 4.4, supports a.out format. We don't have ECOFF support in just yet; it's | |
511 | coming. | |
252b5132 | 512 | |
a40cbfa3 | 513 | * Support for the Hitachi H8/500 has been added. |
252b5132 | 514 | |
a40cbfa3 NC |
515 | * VMS host and target support should be working now, thanks chiefly to Eric |
516 | Youngdale. | |
252b5132 RH |
517 | |
518 | Changes in 1.93.01: | |
519 | ||
a40cbfa3 | 520 | * For m68k, support for more processors has been added: 68040, CPU32, 68851. |
252b5132 | 521 | |
a40cbfa3 | 522 | * For i386, .align is now power-of-two; was number-of-bytes. |
252b5132 | 523 | |
a40cbfa3 NC |
524 | * For m68k, "%" is now accepted before register names. For COFF format, which |
525 | doesn't use underscore prefixes for C labels, it is required, so variable "a0" | |
526 | can be distinguished from the register. | |
252b5132 | 527 | |
a40cbfa3 NC |
528 | * Last public release was 1.38. Lots of configuration changes since then, lots |
529 | of new CPUs and formats, lots of bugs fixed. | |
252b5132 RH |
530 | |
531 | \f | |
532 | Local variables: | |
533 | fill-column: 79 | |
534 | End: |