Commit | Line | Data |
---|---|---|
252b5132 | 1 | -*- text -*- |
6d96a594 | 2 | |
58bf9b6a L |
3 | * Add support for Intel AVX VNNI instructions. |
4 | ||
c1fa250a LC |
5 | * Add support for Intel HRESET instruction. |
6 | ||
f64c42a9 LC |
7 | * Add support for Intel UINTR instructions. |
8 | ||
6d96a594 C |
9 | * Support non-absolute segment values for i386 lcall and ljmp. |
10 | ||
b71702f1 NC |
11 | * When setting the link order attribute of ELF sections, it is now possible to |
12 | use a numeric section index instead of symbol name. | |
42c36b73 | 13 | |
b71702f1 NC |
14 | * Add support for Cortex-A78, Cortex-A78AE and Cortex-X1 for AArch64 and ARM. |
15 | Add support for Cortex-R82, Neoverse V1, and Neoverse N2 for ARM. | |
77718e5b | 16 | |
b71702f1 | 17 | * Add support for ETMv4 (Embedded Trace Macrocell), ETE (Embedded Trace |
6278c6a6 PW |
18 | Extension), TRBE (Trace Buffer Extension), CSRE (Call Stack Recorder |
19 | Extension) and BRBE (Branch Record Buffer Extension) system registers for | |
20 | AArch64. | |
c81946ef AC |
21 | |
22 | * Add support for Armv8-R AArch64. | |
23 | ||
81d54bb7 | 24 | * Add support for Intel TDX instructions. |
96a84ea3 | 25 | |
c4694f17 TG |
26 | * Add support for Intel Key Locker instructions. |
27 | ||
b1766e7c NC |
28 | * Added a .nop directive to generate a single no-op instruction in a target |
29 | neutral manner. This instruction does have an effect on DWARF line number | |
30 | generation, if that is active. | |
31 | ||
a0522545 ML |
32 | * Removed --reduce-memory-overheads and --hash-size as gas now |
33 | uses hash tables that can be expand and shrink automatically. | |
34 | ||
789198ca L |
35 | * Add {disp16} pseudo prefix to x86 assembler. |
36 | ||
260cd341 LC |
37 | * Add support for Intel AMX instructions. |
38 | ||
939b95c7 L |
39 | * Configure with --enable-x86-used-note by default for Linux/x86. |
40 | ||
b115b9fd NC |
41 | Changes in 2.35: |
42 | ||
bbd19b19 L |
43 | * X86 NaCl target support is removed. |
44 | ||
6914be53 L |
45 | * Extend .symver directive to update visibility of the original symbol |
46 | and assign one original symbol to different versioned symbols. | |
47 | ||
6e0e8b45 L |
48 | * Add support for Intel SERIALIZE and TSXLDTRK instructions. |
49 | ||
9e8f1c90 L |
50 | * Add -mlfence-after-load=, -mlfence-before-indirect-branch= and |
51 | -mlfence-before-ret= options to x86 assembler to help mitigate | |
52 | CVE-2020-0551. | |
53 | ||
5496f3c6 NC |
54 | * Add --gdwarf-5 option to the assembler to generate DWARF 5 debug output |
55 | (if such output is being generated). Added the ability to generate | |
56 | version 5 .debug_line sections. | |
57 | ||
251dae91 TC |
58 | * Add -mbig-obj support to i386 MingW targets. |
59 | ||
ae774686 NC |
60 | Changes in 2.34: |
61 | ||
5eb617a7 L |
62 | * Add -malign-branch-boundary=NUM, -malign-branch=TYPE[+TYPE...], |
63 | -malign-branch-prefix-size=NUM and -mbranches-within-32B-boundaries | |
64 | options to x86 assembler to align branches within a fixed boundary | |
65 | with segment prefixes or NOPs. | |
66 | ||
6655dba2 SB |
67 | * Add support for Zilog eZ80 and Zilog Z180 CPUs. |
68 | ||
69 | * Add support for z80-elf target. | |
70 | ||
71 | * Add support for relocation of each byte or word of multibyte value to Z80 | |
72 | targets (just use right shift to 0, 8, 16, or 24 bits or AND operation | |
73 | with 0xff/0xffff mask): ld a, label >> 16 \ ld hl, label & 0xffff | |
74 | ||
75 | * Add SDCC support for Z80 targets. | |
76 | ||
60391a25 PB |
77 | Changes in 2.33: |
78 | ||
7738ddb4 MM |
79 | * Add support for the Arm Scalable Vector Extension version 2 (SVE2) |
80 | instructions. | |
81 | ||
82 | * Add support for the Arm Transactional Memory Extension (TME) | |
83 | instructions. | |
84 | ||
514bbb0f AV |
85 | * Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE) |
86 | instructions. | |
87 | ||
b20d3859 BW |
88 | * For MIPS, Add -m[no-]fix-loongson3-llsc option to fix (or not) Loongson3 |
89 | LLSC Errata. Add a --enable-mips-fix-loongson3-llsc=[yes|no] configure | |
90 | time option to set the default behavior. Set the default if the configure | |
91 | option is not used to "no". | |
6f2117ba | 92 | |
546053ac DZ |
93 | * Add support for the Arm Cortex-A76AE, Cortex-A77 and Cortex-M35P |
94 | processors. | |
95 | ||
96 | * Add support for the AArch64 Cortex-A34, Cortex-A65, Cortex-A65AE, | |
97 | Cortex-A76AE, and Cortex-A77 processors. | |
98 | ||
b20d3859 BW |
99 | * Add .float16 directive for both Arm and AArch64 to allow encoding of 16-bit |
100 | floating point literals. Add .float16_format directive and | |
101 | -mfp16-format=[ieee|alternative] option for Arm to control the format of the | |
102 | encoding. | |
103 | ||
66f8b2cb AB |
104 | * Add --gdwarf-cie-version command line flag. This allows control over which |
105 | version of DWARF CIE the assembler creates. | |
106 | ||
f974f26c NC |
107 | Changes in 2.32: |
108 | ||
03751133 L |
109 | * Add -mvexwig=[0|1] option to x86 assembler to control encoding of |
110 | VEX.W-ignored (WIG) VEX instructions. | |
111 | ||
b4a3a7b4 L |
112 | * Add -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property |
113 | notes. Add a --enable-x86-used-note configure time option to set the | |
114 | default behavior. Set the default if the configure option is not used | |
115 | to "no". | |
116 | ||
a693765e CX |
117 | * Add support for the MIPS Loongson EXTensions R2 (EXT2) instructions. |
118 | ||
bdc6c06e CX |
119 | * Add support for the MIPS Loongson EXTensions (EXT) instructions. |
120 | ||
716c08de CX |
121 | * Add support for the MIPS Loongson Content Address Memory (CAM) ASE. |
122 | ||
b8891f8d AJ |
123 | * Add support for the C-SKY processor series. |
124 | ||
8095d2f7 CX |
125 | * Add support for the MIPS Loongson MultiMedia extensions Instructions (MMI) |
126 | ASE. | |
127 | ||
719d8288 NC |
128 | Changes in 2.31: |
129 | ||
fc6141f0 NC |
130 | * The ADR and ADRL pseudo-instructions supported by the ARM assembler |
131 | now only set the bottom bit of the address of thumb function symbols | |
132 | if the -mthumb-interwork command line option is active. | |
133 | ||
6f20c942 FS |
134 | * Add support for the MIPS Global INValidate (GINV) ASE. |
135 | ||
730c3174 SE |
136 | * Add support for the MIPS Cyclic Redudancy Check (CRC) ASE. |
137 | ||
7b4ae824 JD |
138 | * Add support for the Freescale S12Z architecture. |
139 | ||
0df8ad28 NC |
140 | * Add --generate-missing-build-notes=[yes|no] option to create (or not) GNU |
141 | Build Attribute notes if none are present in the input sources. Add a | |
142 | --enable-generate-build-notes=[yes|no] configure time option to set the | |
143 | default behaviour. Set the default if the configure option is not used | |
144 | to "no". | |
145 | ||
bd5dea88 L |
146 | * Remove -mold-gcc command-line option for x86 targets. |
147 | ||
b6f8c7c4 L |
148 | * Add -O[2|s] command-line options to x86 assembler to enable alternate |
149 | shorter instruction encoding. | |
150 | ||
8f065d3b | 151 | * Add support for .nops directive. It is currently supported only for |
62a02d25 L |
152 | x86 targets. |
153 | ||
9176ac5b NC |
154 | Changes in 2.30: |
155 | ||
ba8826a8 AO |
156 | * Add support for loaction views in DWARF debug line information. |
157 | ||
55a09eb6 TG |
158 | Changes in 2.29: |
159 | ||
a91e1603 L |
160 | * Add support for ELF SHF_GNU_MBIND. |
161 | ||
f96bd6c2 PC |
162 | * Add support for the WebAssembly file format and wasm32 ELF conversion. |
163 | ||
7e0de605 | 164 | * PowerPC gas now checks that the correct register class is used in |
ece5dcc1 AM |
165 | instructions. For instance, "addi %f4,%cr3,%r31" warns three times |
166 | that the registers are invalid. | |
7e0de605 | 167 | |
93f11b16 DD |
168 | * Add support for the Texas Instruments PRU processor. |
169 | ||
0cda1e19 TP |
170 | * Support for the ARMv8-R architecture and Cortex-R52 processor has been |
171 | added to the ARM port. | |
ced40572 | 172 | |
9703a4ef TG |
173 | Changes in 2.28: |
174 | ||
e23eba97 NC |
175 | * Add support for the RISC-V architecture. |
176 | ||
b19ea8d2 | 177 | * Add support for the ARM Cortex-M23 and Cortex-M33 processors. |
ce1b0a45 | 178 | |
96a84ea3 TG |
179 | Changes in 2.27: |
180 | ||
4e3e1fdf L |
181 | * Default to --enable-compressed-debug-sections=gas for Linux/x86 targets. |
182 | ||
2edb36e7 NC |
183 | * Add --no-pad-sections to stop the assembler from padding the end of output |
184 | sections up to their alignment boundary. | |
185 | ||
15afaa63 TP |
186 | * Support for the ARMv8-M architecture has been added to the ARM port. Support |
187 | for the ARMv8-M Security and DSP Extensions has also been added to the ARM | |
188 | port. | |
189 | ||
f36e33da CZ |
190 | * ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and |
191 | .extCoreRegister pseudo-ops that allow an user to define custom | |
192 | instructions, conditional codes, auxiliary and core registers. | |
193 | ||
b8871f35 L |
194 | * Add a configure option --enable-elf-stt-common to decide whether ELF |
195 | assembler should generate common symbols with the STT_COMMON type by | |
196 | default. Default to no. | |
197 | ||
a05a5b64 | 198 | * New command-line option --elf-stt-common= for ELF targets to control |
b8871f35 L |
199 | whether to generate common symbols with the STT_COMMON type. |
200 | ||
9fb71ee4 NC |
201 | * Add ability to set section flags and types via numeric values for ELF |
202 | based targets. | |
81c23f82 | 203 | |
0cb4071e L |
204 | * Add a configure option --enable-x86-relax-relocations to decide whether |
205 | x86 assembler should generate relax relocations by default. Default to | |
206 | yes, except for x86 Solaris targets older than Solaris 12. | |
207 | ||
a05a5b64 | 208 | * New command-line option -mrelax-relocations= for x86 target to control |
0cb4071e L |
209 | whether to generate relax relocations. |
210 | ||
a05a5b64 | 211 | * New command-line option -mfence-as-lock-add=yes for x86 target to encode |
9d3fc4e1 L |
212 | lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)". |
213 | ||
4670103e CZ |
214 | * Add assembly-time relaxation option for ARC cpus. |
215 | ||
9004b6bd AB |
216 | * Add --with-cpu=TYPE configure option for ARC gas. This allows the default |
217 | cpu type to be adjusted at configure time. | |
218 | ||
7feec526 TG |
219 | Changes in 2.26: |
220 | ||
edeefb67 L |
221 | * Add a configure option --enable-compressed-debug-sections={all,gas} to |
222 | decide whether DWARF debug sections should be compressed by default. | |
e12fe555 | 223 | |
886a2506 NC |
224 | * Add support for the ARC EM/HS, and ARC600/700 architectures. Remove |
225 | assembler support for Argonaut RISC architectures. | |
226 | ||
d02603dc NC |
227 | * Symbol and label names can now be enclosed in double quotes (") which allows |
228 | them to contain characters that are not part of valid symbol names in high | |
229 | level languages. | |
230 | ||
f33026a9 MW |
231 | * Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The |
232 | previous spelling, -march=armv6zk, is still accepted. | |
233 | ||
88f0ea34 MW |
234 | * Support for the ARMv8.1 architecture has been added to the Aarch64 port. |
235 | Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture | |
236 | extensions has also been added to the Aarch64 port. | |
237 | ||
a5932920 MW |
238 | * Support for the ARMv8.1 architecture has been added to the ARM port. Support |
239 | for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also | |
240 | been added to the ARM port. | |
241 | ||
ea556d25 L |
242 | * Extend --compress-debug-sections option to support |
243 | --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF | |
244 | targets. | |
245 | ||
0d2b51ad L |
246 | * --compress-debug-sections is turned on for Linux/x86 by default. |
247 | ||
c50415e2 TG |
248 | Changes in 2.25: |
249 | ||
f36e8886 BS |
250 | * Add support for the AVR Tiny microcontrollers. |
251 | ||
73589c9d CS |
252 | * Replace support for openrisc and or32 with support for or1k. |
253 | ||
2e6976a8 | 254 | * Enhanced the ARM port to accept the assembler output from the CodeComposer |
a05a5b64 | 255 | Studio tool. Support is enabled via the new command-line option -mccs. |
2e6976a8 | 256 | |
35c08157 KLC |
257 | * Add support for the Andes NDS32. |
258 | ||
58ca03a2 TG |
259 | Changes in 2.24: |
260 | ||
13761a11 NC |
261 | * Add support for the Texas Instruments MSP430X processor. |
262 | ||
a05a5b64 | 263 | * Add -gdwarf-sections command-line option to enable per-code-section |
b40bf0a2 NC |
264 | generation of DWARF .debug_line sections. |
265 | ||
36591ba1 SL |
266 | * Add support for Altera Nios II. |
267 | ||
a3c62988 NC |
268 | * Add support for the Imagination Technologies Meta processor. |
269 | ||
5bf135a7 NC |
270 | * Add support for the v850e3v5. |
271 | ||
e8044f35 RS |
272 | * Remove assembler support for MIPS ECOFF targets. |
273 | ||
af18cb59 TG |
274 | Changes in 2.23: |
275 | ||
da2bb560 NC |
276 | * Add support for the 64-bit ARM architecture: AArch64. |
277 | ||
6927f982 NC |
278 | * Add support for S12X processor. |
279 | ||
b9c361e0 JL |
280 | * Add support for the VLE extension to the PowerPC architecture. |
281 | ||
f6c1a2d5 NC |
282 | * Add support for the Freescale XGATE architecture. |
283 | ||
fa94de6b RM |
284 | * Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock |
285 | directives. These are currently available only for x86 and ARM targets. | |
286 | ||
99c513f6 DD |
287 | * Add support for the Renesas RL78 architecture. |
288 | ||
cfb8c092 NC |
289 | * Add support for the Adapteva EPIPHANY architecture. |
290 | ||
fe13e45b | 291 | * For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax. |
29c048b6 | 292 | |
a7142d94 TG |
293 | Changes in 2.22: |
294 | ||
69f56ae1 | 295 | * Add support for the Tilera TILEPro and TILE-Gx architectures. |
44f45767 | 296 | |
90b3661c | 297 | Changes in 2.21: |
44f45767 | 298 | |
5fec8599 L |
299 | * Gas no longer requires doubling of ampersands in macros. |
300 | ||
40b36596 JM |
301 | * Add support for the TMS320C6000 (TI C6X) processor family. |
302 | ||
31907d5e DK |
303 | * GAS now understands an extended syntax in the .section directive flags |
304 | for COFF targets that allows the section's alignment to be specified. This | |
305 | feature has also been backported to the 2.20 release series, starting with | |
306 | 2.20.1. | |
307 | ||
c7927a3c NC |
308 | * Add support for the Renesas RX processor. |
309 | ||
a05a5b64 | 310 | * New command-line option, --compress-debug-sections, which requests |
700c4060 CC |
311 | compression of DWARF debug information sections in the relocatable output |
312 | file. Compressed debug sections are supported by readelf, objdump, and | |
313 | gold, but not currently by Gnu ld. | |
314 | ||
81c23f82 TG |
315 | Changes in 2.20: |
316 | ||
1cd986c5 NC |
317 | * Added support for v850e2 and v850e2v3. |
318 | ||
3e7a7d11 NC |
319 | * GNU/Linux targets now supports "gnu_unique_object" as a value in the .type |
320 | pseudo op. It marks the symbol as being globally unique in the entire | |
321 | process. | |
322 | ||
c921be7d NC |
323 | * ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified |
324 | in binary rather than text. | |
6e33da12 | 325 | |
c1711530 DK |
326 | * Add support for common symbol alignment to PE formats. |
327 | ||
92846e72 CC |
328 | * Add support for the new discriminator column in the DWARF line table, |
329 | with a discriminator operand for the .loc directive. | |
330 | ||
c3b7224a NC |
331 | * Add support for Sunplus score architecture. |
332 | ||
d8045f23 NC |
333 | * The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to |
334 | indicate that if the symbol is the target of a relocation, its value should | |
335 | not be use. Instead the function should be invoked and its result used as | |
336 | the value. | |
fa94de6b | 337 | |
84e94c90 NC |
338 | * Add support for Lattice Mico32 (lm32) architecture. |
339 | ||
fa94de6b | 340 | * Add support for Xilinx MicroBlaze architecture. |
caa03924 | 341 | |
6e33da12 TG |
342 | Changes in 2.19: |
343 | ||
4f6d9c90 DJ |
344 | * New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind |
345 | tables without runtime relocation. | |
346 | ||
a05a5b64 | 347 | * New command-line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which |
6fd4f6cc DD |
348 | adds compatibility with H'00 style hex constants. |
349 | ||
a05a5b64 | 350 | * New command-line option, -msse-check=[none|error|warning], for x86 |
daf50ae7 L |
351 | targets. |
352 | ||
a05a5b64 | 353 | * New sub-option added to the assembler's -a command-line switch to |
83f10cb2 NC |
354 | generate a listing output. The 'g' sub-option will insert into the listing |
355 | various information about the assembly, such as assembler version, the | |
a05a5b64 | 356 | command-line options used, and a time stamp. |
83f10cb2 | 357 | |
a05a5b64 | 358 | * New command-line option -msse2avx for x86 target to encode SSE |
c0f3af97 L |
359 | instructions with VEX prefix. |
360 | ||
f1f8f695 | 361 | * Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target. |
c0f3af97 | 362 | |
a05a5b64 | 363 | * New command-line options, -march=CPU[,+EXTENSION...], -mtune=CPU, |
ae40c993 L |
364 | -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg, |
365 | -mnaked-reg and -mold-gcc, for x86 targets. | |
366 | ||
38a57ae7 NC |
367 | * Support for generating wide character strings has been added via the new |
368 | pseudo ops: .string16, .string32 and .string64. | |
369 | ||
85f10a01 MM |
370 | * Support for SSE5 has been added to the i386 port. |
371 | ||
7c3d153f NC |
372 | Changes in 2.18: |
373 | ||
ec2655a6 NC |
374 | * The GAS sources are now released under the GPLv3. |
375 | ||
3d3d428f NC |
376 | * Support for the National Semiconductor CR16 target has been added. |
377 | ||
3f9ce309 AM |
378 | * Added gas .reloc pseudo. This is a low-level interface for creating |
379 | relocations. | |
380 | ||
99ad8390 NC |
381 | * Add support for x86_64 PE+ target. |
382 | ||
1c0d3aa6 | 383 | * Add support for Score target. |
83518699 | 384 | |
ec2655a6 NC |
385 | Changes in 2.17: |
386 | ||
d70c5fc7 NC |
387 | * Support for the Infineon XC16X has been added by KPIT Cummins Infosystems. |
388 | ||
08333dc4 NS |
389 | * Support for ms2 architecture has been added. |
390 | ||
b7b8fb1d NC |
391 | * Support for the Z80 processor family has been added. |
392 | ||
3e8a519c MM |
393 | * Add support for the "@<file>" syntax to the command line, so that extra |
394 | switches can be read from <file>. | |
395 | ||
a05a5b64 | 396 | * The SH target supports a new command-line switch --enable-reg-prefix which, |
37dedf66 NC |
397 | if enabled, will allow register names to be optionally prefixed with a $ |
398 | character. This allows register names to be distinguished from label names. | |
fa94de6b | 399 | |
6eaeac8a JB |
400 | * Macros with a variable number of arguments are now supported. See the |
401 | documentation for how this works. | |
402 | ||
4bdd3565 NC |
403 | * Added --reduce-memory-overheads switch to reduce the size of the hash |
404 | tables used, at the expense of longer assembly times, and | |
405 | --hash-size=<NUMBER> to set the size of the hash tables used by gas. | |
406 | ||
5e75c3ab JB |
407 | * Macro names and macro parameter names can now be any identifier that would |
408 | also be legal as a symbol elsewhere. For macro parameter names, this is | |
409 | known to cause problems in certain sources when the respective target uses | |
410 | characters inconsistently, and thus macro parameter references may no longer | |
411 | be recognized as such (see the documentation for details). | |
fa94de6b | 412 | |
d2c5f73e NC |
413 | * Support the .f_floating, .d_floating, .g_floating and .h_floating directives |
414 | for the VAX target in order to be more compatible with the VAX MACRO | |
415 | assembler. | |
416 | ||
a05a5b64 | 417 | * New command-line option -mtune=[itanium1|itanium2] for IA64 targets. |
8c2fda1d | 418 | |
957d91c1 NC |
419 | Changes in 2.16: |
420 | ||
fffeaa5f JB |
421 | * Redefinition of macros now results in an error. |
422 | ||
a05a5b64 | 423 | * New command-line option -mhint.b=[ok|warning|error] for IA64 targets. |
91d777ee | 424 | |
a05a5b64 | 425 | * New command-line option -munwind-check=[warning|error] for IA64 |
970d6792 L |
426 | targets. |
427 | ||
f1dab70d JB |
428 | * The IA64 port now uses automatic dependency violation removal as its default |
429 | mode. | |
430 | ||
7499d566 NC |
431 | * Port to MAXQ processor contributed by HCL Tech. |
432 | ||
7ed4c4c5 NC |
433 | * Added support for generating unwind tables for ARM ELF targets. |
434 | ||
a05a5b64 | 435 | * Add a -g command-line option to generate debug information in the target's |
329e276d NC |
436 | preferred debug format. |
437 | ||
1fe1f39c NC |
438 | * Support for the crx-elf target added. |
439 | ||
1a320fbb | 440 | * Support for the sh-symbianelf target added. |
1fe1f39c | 441 | |
0503b355 BF |
442 | * Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations |
443 | on pe[i]-i386; required for this target's DWARF 2 support. | |
444 | ||
6b6e92f4 NC |
445 | * Support for Motorola MCF521x/5249/547x/548x added. |
446 | ||
fd99574b NC |
447 | * Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC |
448 | instrucitons. | |
449 | ||
a05a5b64 | 450 | * New command-line option -mno-shared for MIPS ELF targets. |
aa6975fb | 451 | |
a05a5b64 | 452 | * New command-line option --alternate and pseudo-ops .altmacro and .noaltmacro |
caa32fe5 NC |
453 | added to enter (and leave) alternate macro syntax mode. |
454 | ||
0477af35 NC |
455 | Changes in 2.15: |
456 | ||
7a7f4e42 CD |
457 | * The MIPS -membedded-pic option (Embedded-PIC code generation) is |
458 | deprecated and will be removed in a future release. | |
459 | ||
6edf0760 NC |
460 | * Added PIC m32r Linux (ELF) and support to M32R assembler. |
461 | ||
09d92015 MM |
462 | * Added support for ARM V6. |
463 | ||
88da98f3 MS |
464 | * Added support for sh4a and variants. |
465 | ||
eb764db8 NC |
466 | * Support for Renesas M32R2 added. |
467 | ||
88da98f3 MS |
468 | * Limited support for Mapping Symbols as specified in the ARM ELF |
469 | specification has been added to the arm assembler. | |
ed769ec1 | 470 | |
0bbf2aa4 NC |
471 | * On ARM architectures, added a new gas directive ".unreq" that undoes |
472 | definitions created by ".req". | |
473 | ||
3e602632 NC |
474 | * Support for Motorola ColdFire MCF528x added. |
475 | ||
05da4302 NC |
476 | * Added --gstabs+ switch to enable the generation of STABS debug format |
477 | information with GNU extensions. | |
fa94de6b | 478 | |
6a265366 CD |
479 | * Added support for MIPS64 Release 2. |
480 | ||
8ad30312 NC |
481 | * Added support for v850e1. |
482 | ||
12b55ccc L |
483 | * Added -n switch for x86 assembler. By default, x86 GAS replaces |
484 | multiple nop instructions used for alignment within code sections | |
485 | with multi-byte nop instructions such as leal 0(%esi,1),%esi. This | |
486 | switch disables the optimization. | |
487 | ||
78849248 ILT |
488 | * Removed -n option from MIPS assembler. It was not useful, and confused the |
489 | existing -non_shared option. | |
490 | ||
43c58ae6 CD |
491 | Changes in 2.14: |
492 | ||
69be0a2b CD |
493 | * Added support for MIPS32 Release 2. |
494 | ||
e8fd7476 NC |
495 | * Added support for Xtensa architecture. |
496 | ||
e16bb312 NC |
497 | * Support for Intel's iWMMXt processor (an ARM variant) added. |
498 | ||
cce4814f NC |
499 | * An assembler test generator has been contributed and an example file that |
500 | uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c). | |
fa94de6b | 501 | |
5177500f NC |
502 | * Support for SH2E added. |
503 | ||
fea17916 NC |
504 | * GASP has now been removed. |
505 | ||
004d9caf NC |
506 | * Support for Texas Instruments TMS320C4x and TMS320C3x series of |
507 | DSP's contributed by Michael Hayes and Svein E. Seldal. | |
fa94de6b | 508 | |
a40cbfa3 NC |
509 | * Support for the Ubicom IP2xxx microcontroller added. |
510 | ||
2cbb2eef NC |
511 | Changes in 2.13: |
512 | ||
a40cbfa3 NC |
513 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
514 | and FR500 included. | |
0ebb9a87 | 515 | |
a40cbfa3 | 516 | * Support for DLX processor added. |
52216602 | 517 | |
a40cbfa3 NC |
518 | * GASP has now been deprecated and will be removed in a future release. Use |
519 | the macro facilities in GAS instead. | |
3f965e60 | 520 | |
a40cbfa3 NC |
521 | * GASP now correctly parses floating point numbers. Unless the base is |
522 | explicitly specified, they are interpreted as decimal numbers regardless of | |
523 | the currently specified base. | |
1ac57253 | 524 | |
9a66911f NC |
525 | Changes in 2.12: |
526 | ||
a40cbfa3 | 527 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
49fda6c8 | 528 | |
a40cbfa3 | 529 | * Support for the OpenRISC 32-bit embedded processor by OpenCores. |
3b16e843 | 530 | |
fa94de6b RM |
531 | * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for |
532 | specifying the target instruction set. The old method of specifying the | |
a40cbfa3 NC |
533 | target processor has been deprecated, but is still accepted for |
534 | compatibility. | |
03b1477f | 535 | |
a40cbfa3 NC |
536 | * Support for the VFP floating-point instruction set has been added to |
537 | the ARM assembler. | |
252b5132 | 538 | |
a40cbfa3 NC |
539 | * New psuedo op: .incbin to include a set of binary data at a given point |
540 | in the assembly. Contributed by Anders Norlander. | |
7e005732 | 541 | |
a40cbfa3 NC |
542 | * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated |
543 | but still works for compatability. | |
ec68c924 | 544 | |
fa94de6b | 545 | * The MIPS assembler no longer issues a warning by default when it |
a05a5b64 | 546 | generates a nop instruction from a macro. The new command-line option |
a40cbfa3 | 547 | -n will turn on the warning. |
63486801 | 548 | |
2dac7317 JW |
549 | Changes in 2.11: |
550 | ||
500800ca NC |
551 | * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff. |
552 | ||
a40cbfa3 | 553 | * x86 gas now supports the full Pentium4 instruction set. |
a167610d | 554 | |
a40cbfa3 | 555 | * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs. |
c0d8940f | 556 | |
a40cbfa3 | 557 | * Support for Motorola 68HC11 and 68HC12. |
df86943d | 558 | |
a40cbfa3 | 559 | * Support for Texas Instruments TMS320C54x (tic54x). |
39bec121 | 560 | |
a40cbfa3 | 561 | * Support for IA-64. |
2dac7317 | 562 | |
a40cbfa3 | 563 | * Support for i860, by Jason Eckhardt. |
22b36938 | 564 | |
a40cbfa3 | 565 | * Support for CRIS (Axis Communications ETRAX series). |
5bcac8a4 | 566 | |
a40cbfa3 | 567 | * x86 gas has a new .arch pseudo op to specify the target CPU architecture. |
a38cf1db | 568 | |
a05a5b64 | 569 | * x86 gas -q command-line option quietens warnings about register size changes |
a40cbfa3 NC |
570 | due to suffix, indirect jmp/call without `*', stand-alone prefixes, and |
571 | translating various deprecated floating point instructions. | |
a38cf1db | 572 | |
252b5132 RH |
573 | Changes in 2.10: |
574 | ||
a40cbfa3 NC |
575 | * Support for the ARM msr instruction was changed to only allow an immediate |
576 | operand when altering the flags field. | |
d14442f4 | 577 | |
a40cbfa3 | 578 | * Support for ATMEL AVR. |
adde6300 | 579 | |
a40cbfa3 | 580 | * Support for IBM 370 ELF. Somewhat experimental. |
b5ebe70e | 581 | |
a40cbfa3 | 582 | * Support for numbers with suffixes. |
3fd9f047 | 583 | |
a40cbfa3 | 584 | * Added support for breaking to the end of repeat loops. |
6a6987a9 | 585 | |
a40cbfa3 | 586 | * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL). |
6a6987a9 | 587 | |
a40cbfa3 | 588 | * New .elseif pseudo-op added. |
3fd9f047 | 589 | |
a40cbfa3 | 590 | * New --fatal-warnings option. |
1f776aa5 | 591 | |
a40cbfa3 | 592 | * picoJava architecture support added. |
252b5132 | 593 | |
a40cbfa3 | 594 | * Motorola MCore 210 processor support added. |
041dd5a9 | 595 | |
fa94de6b | 596 | * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386 |
a40cbfa3 | 597 | assembly programs with intel syntax. |
252b5132 | 598 | |
a40cbfa3 | 599 | * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code. |
252b5132 | 600 | |
a40cbfa3 | 601 | * Added -gdwarf2 option to generate DWARF 2 debugging information. |
041dd5a9 | 602 | |
a40cbfa3 | 603 | * Full 16-bit mode support for i386. |
252b5132 | 604 | |
fa94de6b | 605 | * Greatly improved instruction operand checking for i386. This change will |
a40cbfa3 NC |
606 | produce errors or warnings on incorrect assembly code that previous versions |
607 | of gas accepted. If you get unexpected messages from code that worked with | |
608 | older versions of gas, please double check the code before reporting a bug. | |
252b5132 | 609 | |
a40cbfa3 | 610 | * Weak symbol support added for COFF targets. |
252b5132 | 611 | |
a40cbfa3 | 612 | * Mitsubishi D30V support added. |
252b5132 | 613 | |
a40cbfa3 | 614 | * Texas Instruments c80 (tms320c80) support added. |
252b5132 | 615 | |
a40cbfa3 | 616 | * i960 ELF support added. |
bedf545c | 617 | |
a40cbfa3 | 618 | * ARM ELF support added. |
a057431b | 619 | |
252b5132 RH |
620 | Changes in 2.9: |
621 | ||
a40cbfa3 | 622 | * Texas Instruments c30 (tms320c30) support added. |
252b5132 | 623 | |
fa94de6b | 624 | * The assembler now optimizes the exception frame information generated by egcs |
a40cbfa3 | 625 | and gcc 2.8. The new --traditional-format option disables this optimization. |
252b5132 | 626 | |
a40cbfa3 | 627 | * Added --gstabs option to generate stabs debugging information. |
252b5132 | 628 | |
fa94de6b | 629 | * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a |
a40cbfa3 | 630 | listing. |
252b5132 | 631 | |
a40cbfa3 | 632 | * Added -MD option to print dependencies. |
252b5132 RH |
633 | |
634 | Changes in 2.8: | |
635 | ||
a40cbfa3 | 636 | * BeOS support added. |
252b5132 | 637 | |
a40cbfa3 | 638 | * MIPS16 support added. |
252b5132 | 639 | |
a40cbfa3 | 640 | * Motorola ColdFire 5200 support added (configure for m68k and use -m5200). |
252b5132 | 641 | |
a40cbfa3 | 642 | * Alpha/VMS support added. |
252b5132 | 643 | |
a40cbfa3 NC |
644 | * m68k options --base-size-default-16, --base-size-default-32, |
645 | --disp-size-default-16, and --disp-size-default-32 added. | |
252b5132 | 646 | |
a40cbfa3 NC |
647 | * The alignment directives now take an optional third argument, which is the |
648 | maximum number of bytes to skip. If doing the alignment would require | |
649 | skipping more than the given number of bytes, the alignment is not done at | |
650 | all. | |
252b5132 | 651 | |
a40cbfa3 | 652 | * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning. |
252b5132 | 653 | |
a40cbfa3 NC |
654 | * The -a option takes a new suboption, c (e.g., -alc), to skip false |
655 | conditionals in listings. | |
252b5132 | 656 | |
a40cbfa3 NC |
657 | * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if |
658 | the symbol is already defined. | |
252b5132 RH |
659 | |
660 | Changes in 2.7: | |
661 | ||
a40cbfa3 NC |
662 | * The PowerPC assembler now allows the use of symbolic register names (r0, |
663 | etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) | |
664 | can be used any time. PowerPC 860 move to/from SPR instructions have been | |
665 | added. | |
252b5132 | 666 | |
a40cbfa3 | 667 | * Alpha Linux (ELF) support added. |
252b5132 | 668 | |
a40cbfa3 | 669 | * PowerPC ELF support added. |
252b5132 | 670 | |
a40cbfa3 | 671 | * m68k Linux (ELF) support added. |
252b5132 | 672 | |
a40cbfa3 | 673 | * i960 Hx/Jx support added. |
252b5132 | 674 | |
a40cbfa3 | 675 | * i386/PowerPC gnu-win32 support added. |
252b5132 | 676 | |
a40cbfa3 NC |
677 | * SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the |
678 | default is to build COFF-only support. To get a set of tools that generate | |
fa94de6b | 679 | ELF (they'll understand both COFF and ELF), you must configure with |
a40cbfa3 | 680 | target=i386-unknown-sco3.2v5elf. |
252b5132 | 681 | |
a40cbfa3 | 682 | * m88k-motorola-sysv3* support added. |
252b5132 RH |
683 | |
684 | Changes in 2.6: | |
685 | ||
a40cbfa3 | 686 | * Gas now directly supports macros, without requiring GASP. |
252b5132 | 687 | |
a40cbfa3 NC |
688 | * Gas now has an MRI assembler compatibility mode. Use -M or --mri to select |
689 | MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the | |
690 | ``.mri 0'' is seen; this can be convenient for inline assembler code. | |
252b5132 | 691 | |
a40cbfa3 | 692 | * Added --defsym SYM=VALUE option. |
252b5132 | 693 | |
a40cbfa3 | 694 | * Added -mips4 support to MIPS assembler. |
252b5132 | 695 | |
a40cbfa3 | 696 | * Added PIC support to Solaris and SPARC SunOS 4 assembler. |
252b5132 RH |
697 | |
698 | Changes in 2.4: | |
699 | ||
a40cbfa3 | 700 | * Converted this directory to use an autoconf-generated configure script. |
252b5132 | 701 | |
a40cbfa3 | 702 | * ARM support, from Richard Earnshaw. |
252b5132 | 703 | |
a40cbfa3 NC |
704 | * Updated VMS support, from Pat Rankin, including considerably improved |
705 | debugging support. | |
252b5132 | 706 | |
a40cbfa3 | 707 | * Support for the control registers in the 68060. |
252b5132 | 708 | |
a40cbfa3 | 709 | * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to |
fa94de6b RM |
710 | provide for possible future gcc changes, for targets where gas provides some |
711 | features not available in the native assembler. If the native assembler is | |
a40cbfa3 | 712 | used, it should become obvious pretty quickly what the problem is. |
252b5132 | 713 | |
a40cbfa3 | 714 | * Usage message is available with "--help". |
252b5132 | 715 | |
fa94de6b | 716 | * The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3 |
a40cbfa3 | 717 | also, but didn't get into the NEWS file.) |
252b5132 | 718 | |
a40cbfa3 | 719 | * Weak symbol support for a.out. |
252b5132 | 720 | |
fa94de6b | 721 | * A bug in the listing code which could cause an infinite loop has been fixed. |
a40cbfa3 | 722 | Bugs in listings when generating a COFF object file have also been fixed. |
252b5132 | 723 | |
a40cbfa3 NC |
724 | * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by |
725 | Paul Kranenburg. | |
252b5132 | 726 | |
a40cbfa3 NC |
727 | * Improved Alpha support. Immediate constants can have a much larger range |
728 | now. Support for the 21164 has been contributed by Digital. | |
252b5132 | 729 | |
a40cbfa3 | 730 | * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall. |
252b5132 RH |
731 | |
732 | Changes in 2.3: | |
733 | ||
a40cbfa3 | 734 | * Mach i386 support, by David Mackenzie and Ken Raeburn. |
252b5132 | 735 | |
a40cbfa3 | 736 | * RS/6000 and PowerPC support by Ian Taylor. |
252b5132 | 737 | |
a40cbfa3 NC |
738 | * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit, |
739 | based on mail received from various people. The `-h#' option should work | |
740 | again too. | |
252b5132 | 741 | |
a40cbfa3 | 742 | * HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work |
fa94de6b | 743 | with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special |
a40cbfa3 NC |
744 | version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve |
745 | this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu | |
746 | in the "dist" directory. | |
252b5132 | 747 | |
a40cbfa3 NC |
748 | * Vax support in gas fixed for BSD, so it builds and seems to run a couple |
749 | simple tests okay. I haven't put it through extensive testing. (GNU make is | |
750 | currently required for BSD 4.3 builds.) | |
252b5132 | 751 | |
fa94de6b | 752 | * Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is |
a40cbfa3 NC |
753 | based on code donated by CMU, which used an a.out-based format. I'm afraid |
754 | the alpha-a.out support is pretty badly mangled, and much of it removed; | |
755 | making it work will require rewriting it as BFD support for the format anyways. | |
252b5132 | 756 | |
a40cbfa3 | 757 | * Irix 5 support. |
252b5132 | 758 | |
fa94de6b | 759 | * The test suites have been fixed up a bit, so that they should work with a |
a40cbfa3 | 760 | couple different versions of expect and dejagnu. |
252b5132 | 761 | |
fa94de6b RM |
762 | * Symbols' values are now handled internally as expressions, permitting more |
763 | flexibility in evaluating them in some cases. Some details of relocation | |
a40cbfa3 NC |
764 | handling have also changed, and simple constant pool management has been |
765 | added, to make the Alpha port easier. | |
252b5132 | 766 | |
a40cbfa3 NC |
767 | * New option "--statistics" for printing out program run times. This is |
768 | intended to be used with the gcc "-Q" option, which prints out times spent in | |
769 | various phases of compilation. (You should be able to get all of them | |
770 | printed out with "gcc -Q -Wa,--statistics", I think.) | |
252b5132 RH |
771 | |
772 | Changes in 2.2: | |
773 | ||
a40cbfa3 | 774 | * RS/6000 AIX and MIPS SGI Irix 5 support has been added. |
252b5132 | 775 | |
fa94de6b RM |
776 | * Configurations that are still in development (and therefore are convenient to |
777 | have listed in configure.in) still get rejected without a minor change to | |
a40cbfa3 NC |
778 | gas/Makefile.in, so people not doing development work shouldn't get the |
779 | impression that support for such configurations is actually believed to be | |
780 | reliable. | |
252b5132 | 781 | |
fa94de6b | 782 | * The program name (usually "as") is printed when a fatal error message is |
a40cbfa3 NC |
783 | displayed. This should prevent some confusion about the source of occasional |
784 | messages about "internal errors". | |
252b5132 | 785 | |
fa94de6b | 786 | * ELF support is falling into place. Support for the 386 should be working. |
a40cbfa3 | 787 | Support for SPARC Solaris is in. HPPA support from Utah is being integrated. |
252b5132 | 788 | |
a40cbfa3 NC |
789 | * Symbol values are maintained as expressions instead of being immediately |
790 | boiled down to add-symbol, sub-symbol, and constant. This permits slightly | |
791 | more complex calculations involving symbols whose values are not alreadey | |
792 | known. | |
252b5132 | 793 | |
a40cbfa3 | 794 | * DBX-style debugging info ("stabs") is now supported for COFF formats. |
fa94de6b RM |
795 | If any stabs directives are seen in the source, GAS will create two new |
796 | sections: a ".stab" and a ".stabstr" section. The format of the .stab | |
a40cbfa3 NC |
797 | section is nearly identical to the a.out symbol format, and .stabstr is |
798 | its string table. For this to be useful, you must have configured GCC | |
799 | to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB | |
800 | that can use the stab sections (4.11 or later). | |
252b5132 | 801 | |
fa94de6b | 802 | * LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS |
a40cbfa3 | 803 | support is in progress. |
252b5132 RH |
804 | |
805 | Changes in 2.1: | |
806 | ||
fa94de6b | 807 | * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been |
a40cbfa3 | 808 | incorporated, but not well tested yet. |
252b5132 | 809 | |
fa94de6b | 810 | * Altered the opcode table split for m68k; it should require less VM to compile |
a40cbfa3 | 811 | with gcc now. |
252b5132 | 812 | |
a40cbfa3 NC |
813 | * Some minor adjustments to add (Convergent Technologies') Miniframe support, |
814 | suggested by Ronald Cole. | |
252b5132 | 815 | |
a40cbfa3 NC |
816 | * HPPA support (running OSF only, not HPUX) has been contributed by Utah. This |
817 | includes improved ELF support, which I've started adapting for SPARC Solaris | |
818 | 2.x. Integration isn't completely, so it probably won't work. | |
252b5132 | 819 | |
a40cbfa3 | 820 | * HP9000/300 support, donated by HP, has been merged in. |
252b5132 | 821 | |
a40cbfa3 | 822 | * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support. |
252b5132 | 823 | |
a40cbfa3 | 824 | * Better error messages for unsupported configurations (e.g., hppa-hpux). |
252b5132 | 825 | |
a40cbfa3 | 826 | * Test suite framework is starting to become reasonable. |
252b5132 RH |
827 | |
828 | Changes in 2.0: | |
829 | ||
a40cbfa3 | 830 | * Mostly bug fixes. |
252b5132 | 831 | |
a40cbfa3 | 832 | * Some more merging of BFD and ELF code, but ELF still doesn't work. |
252b5132 RH |
833 | |
834 | Changes in 1.94: | |
835 | ||
a40cbfa3 NC |
836 | * BFD merge is partly done. Adventurous souls may try giving configure the |
837 | "--with-bfd-assembler" option. Currently, ELF format requires it, a.out | |
838 | format accepts it; SPARC CPU accepts it. It's the default only for OS "elf" | |
839 | or "solaris". (ELF isn't really supported yet. It needs work. I've got | |
840 | some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not | |
841 | fully merged yet.) | |
252b5132 | 842 | |
a40cbfa3 NC |
843 | * The 68K opcode table has been split in half. It should now compile under gcc |
844 | without consuming ridiculous amounts of memory. | |
252b5132 | 845 | |
a40cbfa3 NC |
846 | * A couple data structures have been reduced in size. This should result in |
847 | saving a little bit of space at runtime. | |
252b5132 | 848 | |
a40cbfa3 NC |
849 | * Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF |
850 | code provided ROSE format support, which I haven't merged in yet. (I can | |
851 | make it available, if anyone wants to try it out.) Ralph's code, for BSD | |
852 | 4.4, supports a.out format. We don't have ECOFF support in just yet; it's | |
853 | coming. | |
252b5132 | 854 | |
a40cbfa3 | 855 | * Support for the Hitachi H8/500 has been added. |
252b5132 | 856 | |
a40cbfa3 NC |
857 | * VMS host and target support should be working now, thanks chiefly to Eric |
858 | Youngdale. | |
252b5132 RH |
859 | |
860 | Changes in 1.93.01: | |
861 | ||
a40cbfa3 | 862 | * For m68k, support for more processors has been added: 68040, CPU32, 68851. |
252b5132 | 863 | |
a40cbfa3 | 864 | * For i386, .align is now power-of-two; was number-of-bytes. |
252b5132 | 865 | |
a40cbfa3 NC |
866 | * For m68k, "%" is now accepted before register names. For COFF format, which |
867 | doesn't use underscore prefixes for C labels, it is required, so variable "a0" | |
868 | can be distinguished from the register. | |
252b5132 | 869 | |
a40cbfa3 NC |
870 | * Last public release was 1.38. Lots of configuration changes since then, lots |
871 | of new CPUs and formats, lots of bugs fixed. | |
252b5132 RH |
872 | |
873 | \f | |
b3adc24a | 874 | Copyright (C) 2012-2020 Free Software Foundation, Inc. |
5bf135a7 NC |
875 | |
876 | Copying and distribution of this file, with or without modification, | |
877 | are permitted in any medium without royalty provided the copyright | |
878 | notice and this notice are preserved. | |
879 | ||
252b5132 RH |
880 | Local variables: |
881 | fill-column: 79 | |
882 | End: |