Commit | Line | Data |
---|---|---|
252b5132 | 1 | -*- text -*- |
81c23f82 | 2 | |
0cb4071e L |
3 | * Add a configure option --enable-x86-relax-relocations to decide whether |
4 | x86 assembler should generate relax relocations by default. Default to | |
5 | yes, except for x86 Solaris targets older than Solaris 12. | |
6 | ||
7 | * New command line option -mrelax-relocations= for x86 target to control | |
8 | whether to generate relax relocations. | |
9 | ||
9d3fc4e1 L |
10 | * New command line option -mfence-as-lock-add=yes for x86 target to encode |
11 | lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)". | |
12 | ||
4670103e CZ |
13 | * Add assembly-time relaxation option for ARC cpus. |
14 | ||
7feec526 TG |
15 | Changes in 2.26: |
16 | ||
edeefb67 L |
17 | * Add a configure option --enable-compressed-debug-sections={all,gas} to |
18 | decide whether DWARF debug sections should be compressed by default. | |
e12fe555 | 19 | |
886a2506 NC |
20 | * Add support for the ARC EM/HS, and ARC600/700 architectures. Remove |
21 | assembler support for Argonaut RISC architectures. | |
22 | ||
d02603dc NC |
23 | * Symbol and label names can now be enclosed in double quotes (") which allows |
24 | them to contain characters that are not part of valid symbol names in high | |
25 | level languages. | |
26 | ||
f33026a9 MW |
27 | * Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The |
28 | previous spelling, -march=armv6zk, is still accepted. | |
29 | ||
88f0ea34 MW |
30 | * Support for the ARMv8.1 architecture has been added to the Aarch64 port. |
31 | Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture | |
32 | extensions has also been added to the Aarch64 port. | |
33 | ||
a5932920 MW |
34 | * Support for the ARMv8.1 architecture has been added to the ARM port. Support |
35 | for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also | |
36 | been added to the ARM port. | |
37 | ||
ea556d25 L |
38 | * Extend --compress-debug-sections option to support |
39 | --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF | |
40 | targets. | |
41 | ||
0d2b51ad L |
42 | * --compress-debug-sections is turned on for Linux/x86 by default. |
43 | ||
c50415e2 TG |
44 | Changes in 2.25: |
45 | ||
f36e8886 BS |
46 | * Add support for the AVR Tiny microcontrollers. |
47 | ||
73589c9d CS |
48 | * Replace support for openrisc and or32 with support for or1k. |
49 | ||
2e6976a8 DG |
50 | * Enhanced the ARM port to accept the assembler output from the CodeComposer |
51 | Studio tool. Support is enabled via the new command line option -mccs. | |
52 | ||
35c08157 KLC |
53 | * Add support for the Andes NDS32. |
54 | ||
58ca03a2 TG |
55 | Changes in 2.24: |
56 | ||
13761a11 NC |
57 | * Add support for the Texas Instruments MSP430X processor. |
58 | ||
b40bf0a2 NC |
59 | * Add -gdwarf-sections command line option to enable per-code-section |
60 | generation of DWARF .debug_line sections. | |
61 | ||
36591ba1 SL |
62 | * Add support for Altera Nios II. |
63 | ||
a3c62988 NC |
64 | * Add support for the Imagination Technologies Meta processor. |
65 | ||
5bf135a7 NC |
66 | * Add support for the v850e3v5. |
67 | ||
e8044f35 RS |
68 | * Remove assembler support for MIPS ECOFF targets. |
69 | ||
af18cb59 TG |
70 | Changes in 2.23: |
71 | ||
da2bb560 NC |
72 | * Add support for the 64-bit ARM architecture: AArch64. |
73 | ||
6927f982 NC |
74 | * Add support for S12X processor. |
75 | ||
b9c361e0 JL |
76 | * Add support for the VLE extension to the PowerPC architecture. |
77 | ||
f6c1a2d5 NC |
78 | * Add support for the Freescale XGATE architecture. |
79 | ||
fa94de6b RM |
80 | * Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock |
81 | directives. These are currently available only for x86 and ARM targets. | |
82 | ||
99c513f6 DD |
83 | * Add support for the Renesas RL78 architecture. |
84 | ||
cfb8c092 NC |
85 | * Add support for the Adapteva EPIPHANY architecture. |
86 | ||
fe13e45b | 87 | * For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax. |
29c048b6 | 88 | |
a7142d94 TG |
89 | Changes in 2.22: |
90 | ||
69f56ae1 | 91 | * Add support for the Tilera TILEPro and TILE-Gx architectures. |
44f45767 | 92 | |
90b3661c | 93 | Changes in 2.21: |
44f45767 | 94 | |
5fec8599 L |
95 | * Gas no longer requires doubling of ampersands in macros. |
96 | ||
40b36596 JM |
97 | * Add support for the TMS320C6000 (TI C6X) processor family. |
98 | ||
31907d5e DK |
99 | * GAS now understands an extended syntax in the .section directive flags |
100 | for COFF targets that allows the section's alignment to be specified. This | |
101 | feature has also been backported to the 2.20 release series, starting with | |
102 | 2.20.1. | |
103 | ||
c7927a3c NC |
104 | * Add support for the Renesas RX processor. |
105 | ||
700c4060 CC |
106 | * New command line option, --compress-debug-sections, which requests |
107 | compression of DWARF debug information sections in the relocatable output | |
108 | file. Compressed debug sections are supported by readelf, objdump, and | |
109 | gold, but not currently by Gnu ld. | |
110 | ||
81c23f82 TG |
111 | Changes in 2.20: |
112 | ||
1cd986c5 NC |
113 | * Added support for v850e2 and v850e2v3. |
114 | ||
3e7a7d11 NC |
115 | * GNU/Linux targets now supports "gnu_unique_object" as a value in the .type |
116 | pseudo op. It marks the symbol as being globally unique in the entire | |
117 | process. | |
118 | ||
c921be7d NC |
119 | * ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified |
120 | in binary rather than text. | |
6e33da12 | 121 | |
c1711530 DK |
122 | * Add support for common symbol alignment to PE formats. |
123 | ||
92846e72 CC |
124 | * Add support for the new discriminator column in the DWARF line table, |
125 | with a discriminator operand for the .loc directive. | |
126 | ||
c3b7224a NC |
127 | * Add support for Sunplus score architecture. |
128 | ||
d8045f23 NC |
129 | * The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to |
130 | indicate that if the symbol is the target of a relocation, its value should | |
131 | not be use. Instead the function should be invoked and its result used as | |
132 | the value. | |
fa94de6b | 133 | |
84e94c90 NC |
134 | * Add support for Lattice Mico32 (lm32) architecture. |
135 | ||
fa94de6b | 136 | * Add support for Xilinx MicroBlaze architecture. |
caa03924 | 137 | |
6e33da12 TG |
138 | Changes in 2.19: |
139 | ||
4f6d9c90 DJ |
140 | * New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind |
141 | tables without runtime relocation. | |
142 | ||
6fd4f6cc DD |
143 | * New command line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which |
144 | adds compatibility with H'00 style hex constants. | |
145 | ||
daf50ae7 L |
146 | * New command line option, -msse-check=[none|error|warning], for x86 |
147 | targets. | |
148 | ||
83f10cb2 NC |
149 | * New sub-option added to the assembler's -a command line switch to |
150 | generate a listing output. The 'g' sub-option will insert into the listing | |
151 | various information about the assembly, such as assembler version, the | |
152 | command line options used, and a time stamp. | |
153 | ||
c0f3af97 L |
154 | * New command line option -msse2avx for x86 target to encode SSE |
155 | instructions with VEX prefix. | |
156 | ||
f1f8f695 | 157 | * Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target. |
c0f3af97 | 158 | |
ae40c993 L |
159 | * New command line options, -march=CPU[,+EXTENSION...], -mtune=CPU, |
160 | -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg, | |
161 | -mnaked-reg and -mold-gcc, for x86 targets. | |
162 | ||
38a57ae7 NC |
163 | * Support for generating wide character strings has been added via the new |
164 | pseudo ops: .string16, .string32 and .string64. | |
165 | ||
85f10a01 MM |
166 | * Support for SSE5 has been added to the i386 port. |
167 | ||
7c3d153f NC |
168 | Changes in 2.18: |
169 | ||
ec2655a6 NC |
170 | * The GAS sources are now released under the GPLv3. |
171 | ||
3d3d428f NC |
172 | * Support for the National Semiconductor CR16 target has been added. |
173 | ||
3f9ce309 AM |
174 | * Added gas .reloc pseudo. This is a low-level interface for creating |
175 | relocations. | |
176 | ||
99ad8390 NC |
177 | * Add support for x86_64 PE+ target. |
178 | ||
1c0d3aa6 | 179 | * Add support for Score target. |
83518699 | 180 | |
ec2655a6 NC |
181 | Changes in 2.17: |
182 | ||
d70c5fc7 NC |
183 | * Support for the Infineon XC16X has been added by KPIT Cummins Infosystems. |
184 | ||
08333dc4 NS |
185 | * Support for ms2 architecture has been added. |
186 | ||
b7b8fb1d NC |
187 | * Support for the Z80 processor family has been added. |
188 | ||
3e8a519c MM |
189 | * Add support for the "@<file>" syntax to the command line, so that extra |
190 | switches can be read from <file>. | |
191 | ||
37dedf66 NC |
192 | * The SH target supports a new command line switch --enable-reg-prefix which, |
193 | if enabled, will allow register names to be optionally prefixed with a $ | |
194 | character. This allows register names to be distinguished from label names. | |
fa94de6b | 195 | |
6eaeac8a JB |
196 | * Macros with a variable number of arguments are now supported. See the |
197 | documentation for how this works. | |
198 | ||
4bdd3565 NC |
199 | * Added --reduce-memory-overheads switch to reduce the size of the hash |
200 | tables used, at the expense of longer assembly times, and | |
201 | --hash-size=<NUMBER> to set the size of the hash tables used by gas. | |
202 | ||
5e75c3ab JB |
203 | * Macro names and macro parameter names can now be any identifier that would |
204 | also be legal as a symbol elsewhere. For macro parameter names, this is | |
205 | known to cause problems in certain sources when the respective target uses | |
206 | characters inconsistently, and thus macro parameter references may no longer | |
207 | be recognized as such (see the documentation for details). | |
fa94de6b | 208 | |
d2c5f73e NC |
209 | * Support the .f_floating, .d_floating, .g_floating and .h_floating directives |
210 | for the VAX target in order to be more compatible with the VAX MACRO | |
211 | assembler. | |
212 | ||
8c2fda1d L |
213 | * New command line option -mtune=[itanium1|itanium2] for IA64 targets. |
214 | ||
957d91c1 NC |
215 | Changes in 2.16: |
216 | ||
fffeaa5f JB |
217 | * Redefinition of macros now results in an error. |
218 | ||
91d777ee L |
219 | * New command line option -mhint.b=[ok|warning|error] for IA64 targets. |
220 | ||
970d6792 L |
221 | * New command line option -munwind-check=[warning|error] for IA64 |
222 | targets. | |
223 | ||
f1dab70d JB |
224 | * The IA64 port now uses automatic dependency violation removal as its default |
225 | mode. | |
226 | ||
7499d566 NC |
227 | * Port to MAXQ processor contributed by HCL Tech. |
228 | ||
7ed4c4c5 NC |
229 | * Added support for generating unwind tables for ARM ELF targets. |
230 | ||
329e276d NC |
231 | * Add a -g command line option to generate debug information in the target's |
232 | preferred debug format. | |
233 | ||
1fe1f39c NC |
234 | * Support for the crx-elf target added. |
235 | ||
1a320fbb | 236 | * Support for the sh-symbianelf target added. |
1fe1f39c | 237 | |
0503b355 BF |
238 | * Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations |
239 | on pe[i]-i386; required for this target's DWARF 2 support. | |
240 | ||
6b6e92f4 NC |
241 | * Support for Motorola MCF521x/5249/547x/548x added. |
242 | ||
fd99574b NC |
243 | * Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC |
244 | instrucitons. | |
245 | ||
aa6975fb ILT |
246 | * New command line option -mno-shared for MIPS ELF targets. |
247 | ||
caa32fe5 NC |
248 | * New command line option --alternate and pseudo-ops .altmacro and .noaltmacro |
249 | added to enter (and leave) alternate macro syntax mode. | |
250 | ||
0477af35 NC |
251 | Changes in 2.15: |
252 | ||
7a7f4e42 CD |
253 | * The MIPS -membedded-pic option (Embedded-PIC code generation) is |
254 | deprecated and will be removed in a future release. | |
255 | ||
6edf0760 NC |
256 | * Added PIC m32r Linux (ELF) and support to M32R assembler. |
257 | ||
09d92015 MM |
258 | * Added support for ARM V6. |
259 | ||
88da98f3 MS |
260 | * Added support for sh4a and variants. |
261 | ||
eb764db8 NC |
262 | * Support for Renesas M32R2 added. |
263 | ||
88da98f3 MS |
264 | * Limited support for Mapping Symbols as specified in the ARM ELF |
265 | specification has been added to the arm assembler. | |
ed769ec1 | 266 | |
0bbf2aa4 NC |
267 | * On ARM architectures, added a new gas directive ".unreq" that undoes |
268 | definitions created by ".req". | |
269 | ||
3e602632 NC |
270 | * Support for Motorola ColdFire MCF528x added. |
271 | ||
05da4302 NC |
272 | * Added --gstabs+ switch to enable the generation of STABS debug format |
273 | information with GNU extensions. | |
fa94de6b | 274 | |
6a265366 CD |
275 | * Added support for MIPS64 Release 2. |
276 | ||
8ad30312 NC |
277 | * Added support for v850e1. |
278 | ||
12b55ccc L |
279 | * Added -n switch for x86 assembler. By default, x86 GAS replaces |
280 | multiple nop instructions used for alignment within code sections | |
281 | with multi-byte nop instructions such as leal 0(%esi,1),%esi. This | |
282 | switch disables the optimization. | |
283 | ||
78849248 ILT |
284 | * Removed -n option from MIPS assembler. It was not useful, and confused the |
285 | existing -non_shared option. | |
286 | ||
43c58ae6 CD |
287 | Changes in 2.14: |
288 | ||
69be0a2b CD |
289 | * Added support for MIPS32 Release 2. |
290 | ||
e8fd7476 NC |
291 | * Added support for Xtensa architecture. |
292 | ||
e16bb312 NC |
293 | * Support for Intel's iWMMXt processor (an ARM variant) added. |
294 | ||
cce4814f NC |
295 | * An assembler test generator has been contributed and an example file that |
296 | uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c). | |
fa94de6b | 297 | |
5177500f NC |
298 | * Support for SH2E added. |
299 | ||
fea17916 NC |
300 | * GASP has now been removed. |
301 | ||
004d9caf NC |
302 | * Support for Texas Instruments TMS320C4x and TMS320C3x series of |
303 | DSP's contributed by Michael Hayes and Svein E. Seldal. | |
fa94de6b | 304 | |
a40cbfa3 NC |
305 | * Support for the Ubicom IP2xxx microcontroller added. |
306 | ||
2cbb2eef NC |
307 | Changes in 2.13: |
308 | ||
a40cbfa3 NC |
309 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
310 | and FR500 included. | |
0ebb9a87 | 311 | |
a40cbfa3 | 312 | * Support for DLX processor added. |
52216602 | 313 | |
a40cbfa3 NC |
314 | * GASP has now been deprecated and will be removed in a future release. Use |
315 | the macro facilities in GAS instead. | |
3f965e60 | 316 | |
a40cbfa3 NC |
317 | * GASP now correctly parses floating point numbers. Unless the base is |
318 | explicitly specified, they are interpreted as decimal numbers regardless of | |
319 | the currently specified base. | |
1ac57253 | 320 | |
9a66911f NC |
321 | Changes in 2.12: |
322 | ||
a40cbfa3 | 323 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
49fda6c8 | 324 | |
a40cbfa3 | 325 | * Support for the OpenRISC 32-bit embedded processor by OpenCores. |
3b16e843 | 326 | |
fa94de6b RM |
327 | * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for |
328 | specifying the target instruction set. The old method of specifying the | |
a40cbfa3 NC |
329 | target processor has been deprecated, but is still accepted for |
330 | compatibility. | |
03b1477f | 331 | |
a40cbfa3 NC |
332 | * Support for the VFP floating-point instruction set has been added to |
333 | the ARM assembler. | |
252b5132 | 334 | |
a40cbfa3 NC |
335 | * New psuedo op: .incbin to include a set of binary data at a given point |
336 | in the assembly. Contributed by Anders Norlander. | |
7e005732 | 337 | |
a40cbfa3 NC |
338 | * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated |
339 | but still works for compatability. | |
ec68c924 | 340 | |
fa94de6b | 341 | * The MIPS assembler no longer issues a warning by default when it |
a40cbfa3 NC |
342 | generates a nop instruction from a macro. The new command line option |
343 | -n will turn on the warning. | |
63486801 | 344 | |
2dac7317 JW |
345 | Changes in 2.11: |
346 | ||
500800ca NC |
347 | * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff. |
348 | ||
a40cbfa3 | 349 | * x86 gas now supports the full Pentium4 instruction set. |
a167610d | 350 | |
a40cbfa3 | 351 | * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs. |
c0d8940f | 352 | |
a40cbfa3 | 353 | * Support for Motorola 68HC11 and 68HC12. |
df86943d | 354 | |
a40cbfa3 | 355 | * Support for Texas Instruments TMS320C54x (tic54x). |
39bec121 | 356 | |
a40cbfa3 | 357 | * Support for IA-64. |
2dac7317 | 358 | |
a40cbfa3 | 359 | * Support for i860, by Jason Eckhardt. |
22b36938 | 360 | |
a40cbfa3 | 361 | * Support for CRIS (Axis Communications ETRAX series). |
5bcac8a4 | 362 | |
a40cbfa3 | 363 | * x86 gas has a new .arch pseudo op to specify the target CPU architecture. |
a38cf1db | 364 | |
a40cbfa3 NC |
365 | * x86 gas -q command line option quietens warnings about register size changes |
366 | due to suffix, indirect jmp/call without `*', stand-alone prefixes, and | |
367 | translating various deprecated floating point instructions. | |
a38cf1db | 368 | |
252b5132 RH |
369 | Changes in 2.10: |
370 | ||
a40cbfa3 NC |
371 | * Support for the ARM msr instruction was changed to only allow an immediate |
372 | operand when altering the flags field. | |
d14442f4 | 373 | |
a40cbfa3 | 374 | * Support for ATMEL AVR. |
adde6300 | 375 | |
a40cbfa3 | 376 | * Support for IBM 370 ELF. Somewhat experimental. |
b5ebe70e | 377 | |
a40cbfa3 | 378 | * Support for numbers with suffixes. |
3fd9f047 | 379 | |
a40cbfa3 | 380 | * Added support for breaking to the end of repeat loops. |
6a6987a9 | 381 | |
a40cbfa3 | 382 | * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL). |
6a6987a9 | 383 | |
a40cbfa3 | 384 | * New .elseif pseudo-op added. |
3fd9f047 | 385 | |
a40cbfa3 | 386 | * New --fatal-warnings option. |
1f776aa5 | 387 | |
a40cbfa3 | 388 | * picoJava architecture support added. |
252b5132 | 389 | |
a40cbfa3 | 390 | * Motorola MCore 210 processor support added. |
041dd5a9 | 391 | |
fa94de6b | 392 | * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386 |
a40cbfa3 | 393 | assembly programs with intel syntax. |
252b5132 | 394 | |
a40cbfa3 | 395 | * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code. |
252b5132 | 396 | |
a40cbfa3 | 397 | * Added -gdwarf2 option to generate DWARF 2 debugging information. |
041dd5a9 | 398 | |
a40cbfa3 | 399 | * Full 16-bit mode support for i386. |
252b5132 | 400 | |
fa94de6b | 401 | * Greatly improved instruction operand checking for i386. This change will |
a40cbfa3 NC |
402 | produce errors or warnings on incorrect assembly code that previous versions |
403 | of gas accepted. If you get unexpected messages from code that worked with | |
404 | older versions of gas, please double check the code before reporting a bug. | |
252b5132 | 405 | |
a40cbfa3 | 406 | * Weak symbol support added for COFF targets. |
252b5132 | 407 | |
a40cbfa3 | 408 | * Mitsubishi D30V support added. |
252b5132 | 409 | |
a40cbfa3 | 410 | * Texas Instruments c80 (tms320c80) support added. |
252b5132 | 411 | |
a40cbfa3 | 412 | * i960 ELF support added. |
bedf545c | 413 | |
a40cbfa3 | 414 | * ARM ELF support added. |
a057431b | 415 | |
252b5132 RH |
416 | Changes in 2.9: |
417 | ||
a40cbfa3 | 418 | * Texas Instruments c30 (tms320c30) support added. |
252b5132 | 419 | |
fa94de6b | 420 | * The assembler now optimizes the exception frame information generated by egcs |
a40cbfa3 | 421 | and gcc 2.8. The new --traditional-format option disables this optimization. |
252b5132 | 422 | |
a40cbfa3 | 423 | * Added --gstabs option to generate stabs debugging information. |
252b5132 | 424 | |
fa94de6b | 425 | * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a |
a40cbfa3 | 426 | listing. |
252b5132 | 427 | |
a40cbfa3 | 428 | * Added -MD option to print dependencies. |
252b5132 RH |
429 | |
430 | Changes in 2.8: | |
431 | ||
a40cbfa3 | 432 | * BeOS support added. |
252b5132 | 433 | |
a40cbfa3 | 434 | * MIPS16 support added. |
252b5132 | 435 | |
a40cbfa3 | 436 | * Motorola ColdFire 5200 support added (configure for m68k and use -m5200). |
252b5132 | 437 | |
a40cbfa3 | 438 | * Alpha/VMS support added. |
252b5132 | 439 | |
a40cbfa3 NC |
440 | * m68k options --base-size-default-16, --base-size-default-32, |
441 | --disp-size-default-16, and --disp-size-default-32 added. | |
252b5132 | 442 | |
a40cbfa3 NC |
443 | * The alignment directives now take an optional third argument, which is the |
444 | maximum number of bytes to skip. If doing the alignment would require | |
445 | skipping more than the given number of bytes, the alignment is not done at | |
446 | all. | |
252b5132 | 447 | |
a40cbfa3 | 448 | * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning. |
252b5132 | 449 | |
a40cbfa3 NC |
450 | * The -a option takes a new suboption, c (e.g., -alc), to skip false |
451 | conditionals in listings. | |
252b5132 | 452 | |
a40cbfa3 NC |
453 | * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if |
454 | the symbol is already defined. | |
252b5132 RH |
455 | |
456 | Changes in 2.7: | |
457 | ||
a40cbfa3 NC |
458 | * The PowerPC assembler now allows the use of symbolic register names (r0, |
459 | etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) | |
460 | can be used any time. PowerPC 860 move to/from SPR instructions have been | |
461 | added. | |
252b5132 | 462 | |
a40cbfa3 | 463 | * Alpha Linux (ELF) support added. |
252b5132 | 464 | |
a40cbfa3 | 465 | * PowerPC ELF support added. |
252b5132 | 466 | |
a40cbfa3 | 467 | * m68k Linux (ELF) support added. |
252b5132 | 468 | |
a40cbfa3 | 469 | * i960 Hx/Jx support added. |
252b5132 | 470 | |
a40cbfa3 | 471 | * i386/PowerPC gnu-win32 support added. |
252b5132 | 472 | |
a40cbfa3 NC |
473 | * SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the |
474 | default is to build COFF-only support. To get a set of tools that generate | |
fa94de6b | 475 | ELF (they'll understand both COFF and ELF), you must configure with |
a40cbfa3 | 476 | target=i386-unknown-sco3.2v5elf. |
252b5132 | 477 | |
a40cbfa3 | 478 | * m88k-motorola-sysv3* support added. |
252b5132 RH |
479 | |
480 | Changes in 2.6: | |
481 | ||
a40cbfa3 | 482 | * Gas now directly supports macros, without requiring GASP. |
252b5132 | 483 | |
a40cbfa3 NC |
484 | * Gas now has an MRI assembler compatibility mode. Use -M or --mri to select |
485 | MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the | |
486 | ``.mri 0'' is seen; this can be convenient for inline assembler code. | |
252b5132 | 487 | |
a40cbfa3 | 488 | * Added --defsym SYM=VALUE option. |
252b5132 | 489 | |
a40cbfa3 | 490 | * Added -mips4 support to MIPS assembler. |
252b5132 | 491 | |
a40cbfa3 | 492 | * Added PIC support to Solaris and SPARC SunOS 4 assembler. |
252b5132 RH |
493 | |
494 | Changes in 2.4: | |
495 | ||
a40cbfa3 | 496 | * Converted this directory to use an autoconf-generated configure script. |
252b5132 | 497 | |
a40cbfa3 | 498 | * ARM support, from Richard Earnshaw. |
252b5132 | 499 | |
a40cbfa3 NC |
500 | * Updated VMS support, from Pat Rankin, including considerably improved |
501 | debugging support. | |
252b5132 | 502 | |
a40cbfa3 | 503 | * Support for the control registers in the 68060. |
252b5132 | 504 | |
a40cbfa3 | 505 | * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to |
fa94de6b RM |
506 | provide for possible future gcc changes, for targets where gas provides some |
507 | features not available in the native assembler. If the native assembler is | |
a40cbfa3 | 508 | used, it should become obvious pretty quickly what the problem is. |
252b5132 | 509 | |
a40cbfa3 | 510 | * Usage message is available with "--help". |
252b5132 | 511 | |
fa94de6b | 512 | * The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3 |
a40cbfa3 | 513 | also, but didn't get into the NEWS file.) |
252b5132 | 514 | |
a40cbfa3 | 515 | * Weak symbol support for a.out. |
252b5132 | 516 | |
fa94de6b | 517 | * A bug in the listing code which could cause an infinite loop has been fixed. |
a40cbfa3 | 518 | Bugs in listings when generating a COFF object file have also been fixed. |
252b5132 | 519 | |
a40cbfa3 NC |
520 | * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by |
521 | Paul Kranenburg. | |
252b5132 | 522 | |
a40cbfa3 NC |
523 | * Improved Alpha support. Immediate constants can have a much larger range |
524 | now. Support for the 21164 has been contributed by Digital. | |
252b5132 | 525 | |
a40cbfa3 | 526 | * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall. |
252b5132 RH |
527 | |
528 | Changes in 2.3: | |
529 | ||
a40cbfa3 | 530 | * Mach i386 support, by David Mackenzie and Ken Raeburn. |
252b5132 | 531 | |
a40cbfa3 | 532 | * RS/6000 and PowerPC support by Ian Taylor. |
252b5132 | 533 | |
a40cbfa3 NC |
534 | * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit, |
535 | based on mail received from various people. The `-h#' option should work | |
536 | again too. | |
252b5132 | 537 | |
a40cbfa3 | 538 | * HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work |
fa94de6b | 539 | with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special |
a40cbfa3 NC |
540 | version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve |
541 | this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu | |
542 | in the "dist" directory. | |
252b5132 | 543 | |
a40cbfa3 NC |
544 | * Vax support in gas fixed for BSD, so it builds and seems to run a couple |
545 | simple tests okay. I haven't put it through extensive testing. (GNU make is | |
546 | currently required for BSD 4.3 builds.) | |
252b5132 | 547 | |
fa94de6b | 548 | * Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is |
a40cbfa3 NC |
549 | based on code donated by CMU, which used an a.out-based format. I'm afraid |
550 | the alpha-a.out support is pretty badly mangled, and much of it removed; | |
551 | making it work will require rewriting it as BFD support for the format anyways. | |
252b5132 | 552 | |
a40cbfa3 | 553 | * Irix 5 support. |
252b5132 | 554 | |
fa94de6b | 555 | * The test suites have been fixed up a bit, so that they should work with a |
a40cbfa3 | 556 | couple different versions of expect and dejagnu. |
252b5132 | 557 | |
fa94de6b RM |
558 | * Symbols' values are now handled internally as expressions, permitting more |
559 | flexibility in evaluating them in some cases. Some details of relocation | |
a40cbfa3 NC |
560 | handling have also changed, and simple constant pool management has been |
561 | added, to make the Alpha port easier. | |
252b5132 | 562 | |
a40cbfa3 NC |
563 | * New option "--statistics" for printing out program run times. This is |
564 | intended to be used with the gcc "-Q" option, which prints out times spent in | |
565 | various phases of compilation. (You should be able to get all of them | |
566 | printed out with "gcc -Q -Wa,--statistics", I think.) | |
252b5132 RH |
567 | |
568 | Changes in 2.2: | |
569 | ||
a40cbfa3 | 570 | * RS/6000 AIX and MIPS SGI Irix 5 support has been added. |
252b5132 | 571 | |
fa94de6b RM |
572 | * Configurations that are still in development (and therefore are convenient to |
573 | have listed in configure.in) still get rejected without a minor change to | |
a40cbfa3 NC |
574 | gas/Makefile.in, so people not doing development work shouldn't get the |
575 | impression that support for such configurations is actually believed to be | |
576 | reliable. | |
252b5132 | 577 | |
fa94de6b | 578 | * The program name (usually "as") is printed when a fatal error message is |
a40cbfa3 NC |
579 | displayed. This should prevent some confusion about the source of occasional |
580 | messages about "internal errors". | |
252b5132 | 581 | |
fa94de6b | 582 | * ELF support is falling into place. Support for the 386 should be working. |
a40cbfa3 | 583 | Support for SPARC Solaris is in. HPPA support from Utah is being integrated. |
252b5132 | 584 | |
a40cbfa3 NC |
585 | * Symbol values are maintained as expressions instead of being immediately |
586 | boiled down to add-symbol, sub-symbol, and constant. This permits slightly | |
587 | more complex calculations involving symbols whose values are not alreadey | |
588 | known. | |
252b5132 | 589 | |
a40cbfa3 | 590 | * DBX-style debugging info ("stabs") is now supported for COFF formats. |
fa94de6b RM |
591 | If any stabs directives are seen in the source, GAS will create two new |
592 | sections: a ".stab" and a ".stabstr" section. The format of the .stab | |
a40cbfa3 NC |
593 | section is nearly identical to the a.out symbol format, and .stabstr is |
594 | its string table. For this to be useful, you must have configured GCC | |
595 | to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB | |
596 | that can use the stab sections (4.11 or later). | |
252b5132 | 597 | |
fa94de6b | 598 | * LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS |
a40cbfa3 | 599 | support is in progress. |
252b5132 RH |
600 | |
601 | Changes in 2.1: | |
602 | ||
fa94de6b | 603 | * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been |
a40cbfa3 | 604 | incorporated, but not well tested yet. |
252b5132 | 605 | |
fa94de6b | 606 | * Altered the opcode table split for m68k; it should require less VM to compile |
a40cbfa3 | 607 | with gcc now. |
252b5132 | 608 | |
a40cbfa3 NC |
609 | * Some minor adjustments to add (Convergent Technologies') Miniframe support, |
610 | suggested by Ronald Cole. | |
252b5132 | 611 | |
a40cbfa3 NC |
612 | * HPPA support (running OSF only, not HPUX) has been contributed by Utah. This |
613 | includes improved ELF support, which I've started adapting for SPARC Solaris | |
614 | 2.x. Integration isn't completely, so it probably won't work. | |
252b5132 | 615 | |
a40cbfa3 | 616 | * HP9000/300 support, donated by HP, has been merged in. |
252b5132 | 617 | |
a40cbfa3 | 618 | * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support. |
252b5132 | 619 | |
a40cbfa3 | 620 | * Better error messages for unsupported configurations (e.g., hppa-hpux). |
252b5132 | 621 | |
a40cbfa3 | 622 | * Test suite framework is starting to become reasonable. |
252b5132 RH |
623 | |
624 | Changes in 2.0: | |
625 | ||
a40cbfa3 | 626 | * Mostly bug fixes. |
252b5132 | 627 | |
a40cbfa3 | 628 | * Some more merging of BFD and ELF code, but ELF still doesn't work. |
252b5132 RH |
629 | |
630 | Changes in 1.94: | |
631 | ||
a40cbfa3 NC |
632 | * BFD merge is partly done. Adventurous souls may try giving configure the |
633 | "--with-bfd-assembler" option. Currently, ELF format requires it, a.out | |
634 | format accepts it; SPARC CPU accepts it. It's the default only for OS "elf" | |
635 | or "solaris". (ELF isn't really supported yet. It needs work. I've got | |
636 | some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not | |
637 | fully merged yet.) | |
252b5132 | 638 | |
a40cbfa3 NC |
639 | * The 68K opcode table has been split in half. It should now compile under gcc |
640 | without consuming ridiculous amounts of memory. | |
252b5132 | 641 | |
a40cbfa3 NC |
642 | * A couple data structures have been reduced in size. This should result in |
643 | saving a little bit of space at runtime. | |
252b5132 | 644 | |
a40cbfa3 NC |
645 | * Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF |
646 | code provided ROSE format support, which I haven't merged in yet. (I can | |
647 | make it available, if anyone wants to try it out.) Ralph's code, for BSD | |
648 | 4.4, supports a.out format. We don't have ECOFF support in just yet; it's | |
649 | coming. | |
252b5132 | 650 | |
a40cbfa3 | 651 | * Support for the Hitachi H8/500 has been added. |
252b5132 | 652 | |
a40cbfa3 NC |
653 | * VMS host and target support should be working now, thanks chiefly to Eric |
654 | Youngdale. | |
252b5132 RH |
655 | |
656 | Changes in 1.93.01: | |
657 | ||
a40cbfa3 | 658 | * For m68k, support for more processors has been added: 68040, CPU32, 68851. |
252b5132 | 659 | |
a40cbfa3 | 660 | * For i386, .align is now power-of-two; was number-of-bytes. |
252b5132 | 661 | |
a40cbfa3 NC |
662 | * For m68k, "%" is now accepted before register names. For COFF format, which |
663 | doesn't use underscore prefixes for C labels, it is required, so variable "a0" | |
664 | can be distinguished from the register. | |
252b5132 | 665 | |
a40cbfa3 NC |
666 | * Last public release was 1.38. Lots of configuration changes since then, lots |
667 | of new CPUs and formats, lots of bugs fixed. | |
252b5132 RH |
668 | |
669 | \f | |
6f2750fe | 670 | Copyright (C) 2012-2016 Free Software Foundation, Inc. |
5bf135a7 NC |
671 | |
672 | Copying and distribution of this file, with or without modification, | |
673 | are permitted in any medium without royalty provided the copyright | |
674 | notice and this notice are preserved. | |
675 | ||
252b5132 RH |
676 | Local variables: |
677 | fill-column: 79 | |
678 | End: |