Commit | Line | Data |
---|---|---|
252b5132 | 1 | -*- text -*- |
96a84ea3 | 2 | |
719d8288 NC |
3 | Changes in 2.31: |
4 | ||
fc6141f0 NC |
5 | * The ADR and ADRL pseudo-instructions supported by the ARM assembler |
6 | now only set the bottom bit of the address of thumb function symbols | |
7 | if the -mthumb-interwork command line option is active. | |
8 | ||
6f20c942 FS |
9 | * Add support for the MIPS Global INValidate (GINV) ASE. |
10 | ||
730c3174 SE |
11 | * Add support for the MIPS Cyclic Redudancy Check (CRC) ASE. |
12 | ||
7b4ae824 JD |
13 | * Add support for the Freescale S12Z architecture. |
14 | ||
0df8ad28 NC |
15 | * Add --generate-missing-build-notes=[yes|no] option to create (or not) GNU |
16 | Build Attribute notes if none are present in the input sources. Add a | |
17 | --enable-generate-build-notes=[yes|no] configure time option to set the | |
18 | default behaviour. Set the default if the configure option is not used | |
19 | to "no". | |
20 | ||
bd5dea88 L |
21 | * Remove -mold-gcc command-line option for x86 targets. |
22 | ||
b6f8c7c4 L |
23 | * Add -O[2|s] command-line options to x86 assembler to enable alternate |
24 | shorter instruction encoding. | |
25 | ||
8f065d3b | 26 | * Add support for .nops directive. It is currently supported only for |
62a02d25 L |
27 | x86 targets. |
28 | ||
9176ac5b NC |
29 | Changes in 2.30: |
30 | ||
ba8826a8 AO |
31 | * Add support for loaction views in DWARF debug line information. |
32 | ||
55a09eb6 TG |
33 | Changes in 2.29: |
34 | ||
a91e1603 L |
35 | * Add support for ELF SHF_GNU_MBIND. |
36 | ||
f96bd6c2 PC |
37 | * Add support for the WebAssembly file format and wasm32 ELF conversion. |
38 | ||
7e0de605 | 39 | * PowerPC gas now checks that the correct register class is used in |
ece5dcc1 AM |
40 | instructions. For instance, "addi %f4,%cr3,%r31" warns three times |
41 | that the registers are invalid. | |
7e0de605 | 42 | |
93f11b16 DD |
43 | * Add support for the Texas Instruments PRU processor. |
44 | ||
0cda1e19 TP |
45 | * Support for the ARMv8-R architecture and Cortex-R52 processor has been |
46 | added to the ARM port. | |
ced40572 | 47 | |
9703a4ef TG |
48 | Changes in 2.28: |
49 | ||
e23eba97 NC |
50 | * Add support for the RISC-V architecture. |
51 | ||
b19ea8d2 | 52 | * Add support for the ARM Cortex-M23 and Cortex-M33 processors. |
ce1b0a45 | 53 | |
96a84ea3 TG |
54 | Changes in 2.27: |
55 | ||
4e3e1fdf L |
56 | * Default to --enable-compressed-debug-sections=gas for Linux/x86 targets. |
57 | ||
2edb36e7 NC |
58 | * Add --no-pad-sections to stop the assembler from padding the end of output |
59 | sections up to their alignment boundary. | |
60 | ||
15afaa63 TP |
61 | * Support for the ARMv8-M architecture has been added to the ARM port. Support |
62 | for the ARMv8-M Security and DSP Extensions has also been added to the ARM | |
63 | port. | |
64 | ||
f36e33da CZ |
65 | * ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and |
66 | .extCoreRegister pseudo-ops that allow an user to define custom | |
67 | instructions, conditional codes, auxiliary and core registers. | |
68 | ||
b8871f35 L |
69 | * Add a configure option --enable-elf-stt-common to decide whether ELF |
70 | assembler should generate common symbols with the STT_COMMON type by | |
71 | default. Default to no. | |
72 | ||
a05a5b64 | 73 | * New command-line option --elf-stt-common= for ELF targets to control |
b8871f35 L |
74 | whether to generate common symbols with the STT_COMMON type. |
75 | ||
9fb71ee4 NC |
76 | * Add ability to set section flags and types via numeric values for ELF |
77 | based targets. | |
81c23f82 | 78 | |
0cb4071e L |
79 | * Add a configure option --enable-x86-relax-relocations to decide whether |
80 | x86 assembler should generate relax relocations by default. Default to | |
81 | yes, except for x86 Solaris targets older than Solaris 12. | |
82 | ||
a05a5b64 | 83 | * New command-line option -mrelax-relocations= for x86 target to control |
0cb4071e L |
84 | whether to generate relax relocations. |
85 | ||
a05a5b64 | 86 | * New command-line option -mfence-as-lock-add=yes for x86 target to encode |
9d3fc4e1 L |
87 | lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)". |
88 | ||
4670103e CZ |
89 | * Add assembly-time relaxation option for ARC cpus. |
90 | ||
9004b6bd AB |
91 | * Add --with-cpu=TYPE configure option for ARC gas. This allows the default |
92 | cpu type to be adjusted at configure time. | |
93 | ||
7feec526 TG |
94 | Changes in 2.26: |
95 | ||
edeefb67 L |
96 | * Add a configure option --enable-compressed-debug-sections={all,gas} to |
97 | decide whether DWARF debug sections should be compressed by default. | |
e12fe555 | 98 | |
886a2506 NC |
99 | * Add support for the ARC EM/HS, and ARC600/700 architectures. Remove |
100 | assembler support for Argonaut RISC architectures. | |
101 | ||
d02603dc NC |
102 | * Symbol and label names can now be enclosed in double quotes (") which allows |
103 | them to contain characters that are not part of valid symbol names in high | |
104 | level languages. | |
105 | ||
f33026a9 MW |
106 | * Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The |
107 | previous spelling, -march=armv6zk, is still accepted. | |
108 | ||
88f0ea34 MW |
109 | * Support for the ARMv8.1 architecture has been added to the Aarch64 port. |
110 | Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture | |
111 | extensions has also been added to the Aarch64 port. | |
112 | ||
a5932920 MW |
113 | * Support for the ARMv8.1 architecture has been added to the ARM port. Support |
114 | for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also | |
115 | been added to the ARM port. | |
116 | ||
ea556d25 L |
117 | * Extend --compress-debug-sections option to support |
118 | --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF | |
119 | targets. | |
120 | ||
0d2b51ad L |
121 | * --compress-debug-sections is turned on for Linux/x86 by default. |
122 | ||
c50415e2 TG |
123 | Changes in 2.25: |
124 | ||
f36e8886 BS |
125 | * Add support for the AVR Tiny microcontrollers. |
126 | ||
73589c9d CS |
127 | * Replace support for openrisc and or32 with support for or1k. |
128 | ||
2e6976a8 | 129 | * Enhanced the ARM port to accept the assembler output from the CodeComposer |
a05a5b64 | 130 | Studio tool. Support is enabled via the new command-line option -mccs. |
2e6976a8 | 131 | |
35c08157 KLC |
132 | * Add support for the Andes NDS32. |
133 | ||
58ca03a2 TG |
134 | Changes in 2.24: |
135 | ||
13761a11 NC |
136 | * Add support for the Texas Instruments MSP430X processor. |
137 | ||
a05a5b64 | 138 | * Add -gdwarf-sections command-line option to enable per-code-section |
b40bf0a2 NC |
139 | generation of DWARF .debug_line sections. |
140 | ||
36591ba1 SL |
141 | * Add support for Altera Nios II. |
142 | ||
a3c62988 NC |
143 | * Add support for the Imagination Technologies Meta processor. |
144 | ||
5bf135a7 NC |
145 | * Add support for the v850e3v5. |
146 | ||
e8044f35 RS |
147 | * Remove assembler support for MIPS ECOFF targets. |
148 | ||
af18cb59 TG |
149 | Changes in 2.23: |
150 | ||
da2bb560 NC |
151 | * Add support for the 64-bit ARM architecture: AArch64. |
152 | ||
6927f982 NC |
153 | * Add support for S12X processor. |
154 | ||
b9c361e0 JL |
155 | * Add support for the VLE extension to the PowerPC architecture. |
156 | ||
f6c1a2d5 NC |
157 | * Add support for the Freescale XGATE architecture. |
158 | ||
fa94de6b RM |
159 | * Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock |
160 | directives. These are currently available only for x86 and ARM targets. | |
161 | ||
99c513f6 DD |
162 | * Add support for the Renesas RL78 architecture. |
163 | ||
cfb8c092 NC |
164 | * Add support for the Adapteva EPIPHANY architecture. |
165 | ||
fe13e45b | 166 | * For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax. |
29c048b6 | 167 | |
a7142d94 TG |
168 | Changes in 2.22: |
169 | ||
69f56ae1 | 170 | * Add support for the Tilera TILEPro and TILE-Gx architectures. |
44f45767 | 171 | |
90b3661c | 172 | Changes in 2.21: |
44f45767 | 173 | |
5fec8599 L |
174 | * Gas no longer requires doubling of ampersands in macros. |
175 | ||
40b36596 JM |
176 | * Add support for the TMS320C6000 (TI C6X) processor family. |
177 | ||
31907d5e DK |
178 | * GAS now understands an extended syntax in the .section directive flags |
179 | for COFF targets that allows the section's alignment to be specified. This | |
180 | feature has also been backported to the 2.20 release series, starting with | |
181 | 2.20.1. | |
182 | ||
c7927a3c NC |
183 | * Add support for the Renesas RX processor. |
184 | ||
a05a5b64 | 185 | * New command-line option, --compress-debug-sections, which requests |
700c4060 CC |
186 | compression of DWARF debug information sections in the relocatable output |
187 | file. Compressed debug sections are supported by readelf, objdump, and | |
188 | gold, but not currently by Gnu ld. | |
189 | ||
81c23f82 TG |
190 | Changes in 2.20: |
191 | ||
1cd986c5 NC |
192 | * Added support for v850e2 and v850e2v3. |
193 | ||
3e7a7d11 NC |
194 | * GNU/Linux targets now supports "gnu_unique_object" as a value in the .type |
195 | pseudo op. It marks the symbol as being globally unique in the entire | |
196 | process. | |
197 | ||
c921be7d NC |
198 | * ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified |
199 | in binary rather than text. | |
6e33da12 | 200 | |
c1711530 DK |
201 | * Add support for common symbol alignment to PE formats. |
202 | ||
92846e72 CC |
203 | * Add support for the new discriminator column in the DWARF line table, |
204 | with a discriminator operand for the .loc directive. | |
205 | ||
c3b7224a NC |
206 | * Add support for Sunplus score architecture. |
207 | ||
d8045f23 NC |
208 | * The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to |
209 | indicate that if the symbol is the target of a relocation, its value should | |
210 | not be use. Instead the function should be invoked and its result used as | |
211 | the value. | |
fa94de6b | 212 | |
84e94c90 NC |
213 | * Add support for Lattice Mico32 (lm32) architecture. |
214 | ||
fa94de6b | 215 | * Add support for Xilinx MicroBlaze architecture. |
caa03924 | 216 | |
6e33da12 TG |
217 | Changes in 2.19: |
218 | ||
4f6d9c90 DJ |
219 | * New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind |
220 | tables without runtime relocation. | |
221 | ||
a05a5b64 | 222 | * New command-line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which |
6fd4f6cc DD |
223 | adds compatibility with H'00 style hex constants. |
224 | ||
a05a5b64 | 225 | * New command-line option, -msse-check=[none|error|warning], for x86 |
daf50ae7 L |
226 | targets. |
227 | ||
a05a5b64 | 228 | * New sub-option added to the assembler's -a command-line switch to |
83f10cb2 NC |
229 | generate a listing output. The 'g' sub-option will insert into the listing |
230 | various information about the assembly, such as assembler version, the | |
a05a5b64 | 231 | command-line options used, and a time stamp. |
83f10cb2 | 232 | |
a05a5b64 | 233 | * New command-line option -msse2avx for x86 target to encode SSE |
c0f3af97 L |
234 | instructions with VEX prefix. |
235 | ||
f1f8f695 | 236 | * Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target. |
c0f3af97 | 237 | |
a05a5b64 | 238 | * New command-line options, -march=CPU[,+EXTENSION...], -mtune=CPU, |
ae40c993 L |
239 | -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg, |
240 | -mnaked-reg and -mold-gcc, for x86 targets. | |
241 | ||
38a57ae7 NC |
242 | * Support for generating wide character strings has been added via the new |
243 | pseudo ops: .string16, .string32 and .string64. | |
244 | ||
85f10a01 MM |
245 | * Support for SSE5 has been added to the i386 port. |
246 | ||
7c3d153f NC |
247 | Changes in 2.18: |
248 | ||
ec2655a6 NC |
249 | * The GAS sources are now released under the GPLv3. |
250 | ||
3d3d428f NC |
251 | * Support for the National Semiconductor CR16 target has been added. |
252 | ||
3f9ce309 AM |
253 | * Added gas .reloc pseudo. This is a low-level interface for creating |
254 | relocations. | |
255 | ||
99ad8390 NC |
256 | * Add support for x86_64 PE+ target. |
257 | ||
1c0d3aa6 | 258 | * Add support for Score target. |
83518699 | 259 | |
ec2655a6 NC |
260 | Changes in 2.17: |
261 | ||
d70c5fc7 NC |
262 | * Support for the Infineon XC16X has been added by KPIT Cummins Infosystems. |
263 | ||
08333dc4 NS |
264 | * Support for ms2 architecture has been added. |
265 | ||
b7b8fb1d NC |
266 | * Support for the Z80 processor family has been added. |
267 | ||
3e8a519c MM |
268 | * Add support for the "@<file>" syntax to the command line, so that extra |
269 | switches can be read from <file>. | |
270 | ||
a05a5b64 | 271 | * The SH target supports a new command-line switch --enable-reg-prefix which, |
37dedf66 NC |
272 | if enabled, will allow register names to be optionally prefixed with a $ |
273 | character. This allows register names to be distinguished from label names. | |
fa94de6b | 274 | |
6eaeac8a JB |
275 | * Macros with a variable number of arguments are now supported. See the |
276 | documentation for how this works. | |
277 | ||
4bdd3565 NC |
278 | * Added --reduce-memory-overheads switch to reduce the size of the hash |
279 | tables used, at the expense of longer assembly times, and | |
280 | --hash-size=<NUMBER> to set the size of the hash tables used by gas. | |
281 | ||
5e75c3ab JB |
282 | * Macro names and macro parameter names can now be any identifier that would |
283 | also be legal as a symbol elsewhere. For macro parameter names, this is | |
284 | known to cause problems in certain sources when the respective target uses | |
285 | characters inconsistently, and thus macro parameter references may no longer | |
286 | be recognized as such (see the documentation for details). | |
fa94de6b | 287 | |
d2c5f73e NC |
288 | * Support the .f_floating, .d_floating, .g_floating and .h_floating directives |
289 | for the VAX target in order to be more compatible with the VAX MACRO | |
290 | assembler. | |
291 | ||
a05a5b64 | 292 | * New command-line option -mtune=[itanium1|itanium2] for IA64 targets. |
8c2fda1d | 293 | |
957d91c1 NC |
294 | Changes in 2.16: |
295 | ||
fffeaa5f JB |
296 | * Redefinition of macros now results in an error. |
297 | ||
a05a5b64 | 298 | * New command-line option -mhint.b=[ok|warning|error] for IA64 targets. |
91d777ee | 299 | |
a05a5b64 | 300 | * New command-line option -munwind-check=[warning|error] for IA64 |
970d6792 L |
301 | targets. |
302 | ||
f1dab70d JB |
303 | * The IA64 port now uses automatic dependency violation removal as its default |
304 | mode. | |
305 | ||
7499d566 NC |
306 | * Port to MAXQ processor contributed by HCL Tech. |
307 | ||
7ed4c4c5 NC |
308 | * Added support for generating unwind tables for ARM ELF targets. |
309 | ||
a05a5b64 | 310 | * Add a -g command-line option to generate debug information in the target's |
329e276d NC |
311 | preferred debug format. |
312 | ||
1fe1f39c NC |
313 | * Support for the crx-elf target added. |
314 | ||
1a320fbb | 315 | * Support for the sh-symbianelf target added. |
1fe1f39c | 316 | |
0503b355 BF |
317 | * Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations |
318 | on pe[i]-i386; required for this target's DWARF 2 support. | |
319 | ||
6b6e92f4 NC |
320 | * Support for Motorola MCF521x/5249/547x/548x added. |
321 | ||
fd99574b NC |
322 | * Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC |
323 | instrucitons. | |
324 | ||
a05a5b64 | 325 | * New command-line option -mno-shared for MIPS ELF targets. |
aa6975fb | 326 | |
a05a5b64 | 327 | * New command-line option --alternate and pseudo-ops .altmacro and .noaltmacro |
caa32fe5 NC |
328 | added to enter (and leave) alternate macro syntax mode. |
329 | ||
0477af35 NC |
330 | Changes in 2.15: |
331 | ||
7a7f4e42 CD |
332 | * The MIPS -membedded-pic option (Embedded-PIC code generation) is |
333 | deprecated and will be removed in a future release. | |
334 | ||
6edf0760 NC |
335 | * Added PIC m32r Linux (ELF) and support to M32R assembler. |
336 | ||
09d92015 MM |
337 | * Added support for ARM V6. |
338 | ||
88da98f3 MS |
339 | * Added support for sh4a and variants. |
340 | ||
eb764db8 NC |
341 | * Support for Renesas M32R2 added. |
342 | ||
88da98f3 MS |
343 | * Limited support for Mapping Symbols as specified in the ARM ELF |
344 | specification has been added to the arm assembler. | |
ed769ec1 | 345 | |
0bbf2aa4 NC |
346 | * On ARM architectures, added a new gas directive ".unreq" that undoes |
347 | definitions created by ".req". | |
348 | ||
3e602632 NC |
349 | * Support for Motorola ColdFire MCF528x added. |
350 | ||
05da4302 NC |
351 | * Added --gstabs+ switch to enable the generation of STABS debug format |
352 | information with GNU extensions. | |
fa94de6b | 353 | |
6a265366 CD |
354 | * Added support for MIPS64 Release 2. |
355 | ||
8ad30312 NC |
356 | * Added support for v850e1. |
357 | ||
12b55ccc L |
358 | * Added -n switch for x86 assembler. By default, x86 GAS replaces |
359 | multiple nop instructions used for alignment within code sections | |
360 | with multi-byte nop instructions such as leal 0(%esi,1),%esi. This | |
361 | switch disables the optimization. | |
362 | ||
78849248 ILT |
363 | * Removed -n option from MIPS assembler. It was not useful, and confused the |
364 | existing -non_shared option. | |
365 | ||
43c58ae6 CD |
366 | Changes in 2.14: |
367 | ||
69be0a2b CD |
368 | * Added support for MIPS32 Release 2. |
369 | ||
e8fd7476 NC |
370 | * Added support for Xtensa architecture. |
371 | ||
e16bb312 NC |
372 | * Support for Intel's iWMMXt processor (an ARM variant) added. |
373 | ||
cce4814f NC |
374 | * An assembler test generator has been contributed and an example file that |
375 | uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c). | |
fa94de6b | 376 | |
5177500f NC |
377 | * Support for SH2E added. |
378 | ||
fea17916 NC |
379 | * GASP has now been removed. |
380 | ||
004d9caf NC |
381 | * Support for Texas Instruments TMS320C4x and TMS320C3x series of |
382 | DSP's contributed by Michael Hayes and Svein E. Seldal. | |
fa94de6b | 383 | |
a40cbfa3 NC |
384 | * Support for the Ubicom IP2xxx microcontroller added. |
385 | ||
2cbb2eef NC |
386 | Changes in 2.13: |
387 | ||
a40cbfa3 NC |
388 | * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400 |
389 | and FR500 included. | |
0ebb9a87 | 390 | |
a40cbfa3 | 391 | * Support for DLX processor added. |
52216602 | 392 | |
a40cbfa3 NC |
393 | * GASP has now been deprecated and will be removed in a future release. Use |
394 | the macro facilities in GAS instead. | |
3f965e60 | 395 | |
a40cbfa3 NC |
396 | * GASP now correctly parses floating point numbers. Unless the base is |
397 | explicitly specified, they are interpreted as decimal numbers regardless of | |
398 | the currently specified base. | |
1ac57253 | 399 | |
9a66911f NC |
400 | Changes in 2.12: |
401 | ||
a40cbfa3 | 402 | * Support for Don Knuth's MMIX, by Hans-Peter Nilsson. |
49fda6c8 | 403 | |
a40cbfa3 | 404 | * Support for the OpenRISC 32-bit embedded processor by OpenCores. |
3b16e843 | 405 | |
fa94de6b RM |
406 | * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for |
407 | specifying the target instruction set. The old method of specifying the | |
a40cbfa3 NC |
408 | target processor has been deprecated, but is still accepted for |
409 | compatibility. | |
03b1477f | 410 | |
a40cbfa3 NC |
411 | * Support for the VFP floating-point instruction set has been added to |
412 | the ARM assembler. | |
252b5132 | 413 | |
a40cbfa3 NC |
414 | * New psuedo op: .incbin to include a set of binary data at a given point |
415 | in the assembly. Contributed by Anders Norlander. | |
7e005732 | 416 | |
a40cbfa3 NC |
417 | * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated |
418 | but still works for compatability. | |
ec68c924 | 419 | |
fa94de6b | 420 | * The MIPS assembler no longer issues a warning by default when it |
a05a5b64 | 421 | generates a nop instruction from a macro. The new command-line option |
a40cbfa3 | 422 | -n will turn on the warning. |
63486801 | 423 | |
2dac7317 JW |
424 | Changes in 2.11: |
425 | ||
500800ca NC |
426 | * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff. |
427 | ||
a40cbfa3 | 428 | * x86 gas now supports the full Pentium4 instruction set. |
a167610d | 429 | |
a40cbfa3 | 430 | * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs. |
c0d8940f | 431 | |
a40cbfa3 | 432 | * Support for Motorola 68HC11 and 68HC12. |
df86943d | 433 | |
a40cbfa3 | 434 | * Support for Texas Instruments TMS320C54x (tic54x). |
39bec121 | 435 | |
a40cbfa3 | 436 | * Support for IA-64. |
2dac7317 | 437 | |
a40cbfa3 | 438 | * Support for i860, by Jason Eckhardt. |
22b36938 | 439 | |
a40cbfa3 | 440 | * Support for CRIS (Axis Communications ETRAX series). |
5bcac8a4 | 441 | |
a40cbfa3 | 442 | * x86 gas has a new .arch pseudo op to specify the target CPU architecture. |
a38cf1db | 443 | |
a05a5b64 | 444 | * x86 gas -q command-line option quietens warnings about register size changes |
a40cbfa3 NC |
445 | due to suffix, indirect jmp/call without `*', stand-alone prefixes, and |
446 | translating various deprecated floating point instructions. | |
a38cf1db | 447 | |
252b5132 RH |
448 | Changes in 2.10: |
449 | ||
a40cbfa3 NC |
450 | * Support for the ARM msr instruction was changed to only allow an immediate |
451 | operand when altering the flags field. | |
d14442f4 | 452 | |
a40cbfa3 | 453 | * Support for ATMEL AVR. |
adde6300 | 454 | |
a40cbfa3 | 455 | * Support for IBM 370 ELF. Somewhat experimental. |
b5ebe70e | 456 | |
a40cbfa3 | 457 | * Support for numbers with suffixes. |
3fd9f047 | 458 | |
a40cbfa3 | 459 | * Added support for breaking to the end of repeat loops. |
6a6987a9 | 460 | |
a40cbfa3 | 461 | * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL). |
6a6987a9 | 462 | |
a40cbfa3 | 463 | * New .elseif pseudo-op added. |
3fd9f047 | 464 | |
a40cbfa3 | 465 | * New --fatal-warnings option. |
1f776aa5 | 466 | |
a40cbfa3 | 467 | * picoJava architecture support added. |
252b5132 | 468 | |
a40cbfa3 | 469 | * Motorola MCore 210 processor support added. |
041dd5a9 | 470 | |
fa94de6b | 471 | * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386 |
a40cbfa3 | 472 | assembly programs with intel syntax. |
252b5132 | 473 | |
a40cbfa3 | 474 | * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code. |
252b5132 | 475 | |
a40cbfa3 | 476 | * Added -gdwarf2 option to generate DWARF 2 debugging information. |
041dd5a9 | 477 | |
a40cbfa3 | 478 | * Full 16-bit mode support for i386. |
252b5132 | 479 | |
fa94de6b | 480 | * Greatly improved instruction operand checking for i386. This change will |
a40cbfa3 NC |
481 | produce errors or warnings on incorrect assembly code that previous versions |
482 | of gas accepted. If you get unexpected messages from code that worked with | |
483 | older versions of gas, please double check the code before reporting a bug. | |
252b5132 | 484 | |
a40cbfa3 | 485 | * Weak symbol support added for COFF targets. |
252b5132 | 486 | |
a40cbfa3 | 487 | * Mitsubishi D30V support added. |
252b5132 | 488 | |
a40cbfa3 | 489 | * Texas Instruments c80 (tms320c80) support added. |
252b5132 | 490 | |
a40cbfa3 | 491 | * i960 ELF support added. |
bedf545c | 492 | |
a40cbfa3 | 493 | * ARM ELF support added. |
a057431b | 494 | |
252b5132 RH |
495 | Changes in 2.9: |
496 | ||
a40cbfa3 | 497 | * Texas Instruments c30 (tms320c30) support added. |
252b5132 | 498 | |
fa94de6b | 499 | * The assembler now optimizes the exception frame information generated by egcs |
a40cbfa3 | 500 | and gcc 2.8. The new --traditional-format option disables this optimization. |
252b5132 | 501 | |
a40cbfa3 | 502 | * Added --gstabs option to generate stabs debugging information. |
252b5132 | 503 | |
fa94de6b | 504 | * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a |
a40cbfa3 | 505 | listing. |
252b5132 | 506 | |
a40cbfa3 | 507 | * Added -MD option to print dependencies. |
252b5132 RH |
508 | |
509 | Changes in 2.8: | |
510 | ||
a40cbfa3 | 511 | * BeOS support added. |
252b5132 | 512 | |
a40cbfa3 | 513 | * MIPS16 support added. |
252b5132 | 514 | |
a40cbfa3 | 515 | * Motorola ColdFire 5200 support added (configure for m68k and use -m5200). |
252b5132 | 516 | |
a40cbfa3 | 517 | * Alpha/VMS support added. |
252b5132 | 518 | |
a40cbfa3 NC |
519 | * m68k options --base-size-default-16, --base-size-default-32, |
520 | --disp-size-default-16, and --disp-size-default-32 added. | |
252b5132 | 521 | |
a40cbfa3 NC |
522 | * The alignment directives now take an optional third argument, which is the |
523 | maximum number of bytes to skip. If doing the alignment would require | |
524 | skipping more than the given number of bytes, the alignment is not done at | |
525 | all. | |
252b5132 | 526 | |
a40cbfa3 | 527 | * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning. |
252b5132 | 528 | |
a40cbfa3 NC |
529 | * The -a option takes a new suboption, c (e.g., -alc), to skip false |
530 | conditionals in listings. | |
252b5132 | 531 | |
a40cbfa3 NC |
532 | * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if |
533 | the symbol is already defined. | |
252b5132 RH |
534 | |
535 | Changes in 2.7: | |
536 | ||
a40cbfa3 NC |
537 | * The PowerPC assembler now allows the use of symbolic register names (r0, |
538 | etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) | |
539 | can be used any time. PowerPC 860 move to/from SPR instructions have been | |
540 | added. | |
252b5132 | 541 | |
a40cbfa3 | 542 | * Alpha Linux (ELF) support added. |
252b5132 | 543 | |
a40cbfa3 | 544 | * PowerPC ELF support added. |
252b5132 | 545 | |
a40cbfa3 | 546 | * m68k Linux (ELF) support added. |
252b5132 | 547 | |
a40cbfa3 | 548 | * i960 Hx/Jx support added. |
252b5132 | 549 | |
a40cbfa3 | 550 | * i386/PowerPC gnu-win32 support added. |
252b5132 | 551 | |
a40cbfa3 NC |
552 | * SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the |
553 | default is to build COFF-only support. To get a set of tools that generate | |
fa94de6b | 554 | ELF (they'll understand both COFF and ELF), you must configure with |
a40cbfa3 | 555 | target=i386-unknown-sco3.2v5elf. |
252b5132 | 556 | |
a40cbfa3 | 557 | * m88k-motorola-sysv3* support added. |
252b5132 RH |
558 | |
559 | Changes in 2.6: | |
560 | ||
a40cbfa3 | 561 | * Gas now directly supports macros, without requiring GASP. |
252b5132 | 562 | |
a40cbfa3 NC |
563 | * Gas now has an MRI assembler compatibility mode. Use -M or --mri to select |
564 | MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the | |
565 | ``.mri 0'' is seen; this can be convenient for inline assembler code. | |
252b5132 | 566 | |
a40cbfa3 | 567 | * Added --defsym SYM=VALUE option. |
252b5132 | 568 | |
a40cbfa3 | 569 | * Added -mips4 support to MIPS assembler. |
252b5132 | 570 | |
a40cbfa3 | 571 | * Added PIC support to Solaris and SPARC SunOS 4 assembler. |
252b5132 RH |
572 | |
573 | Changes in 2.4: | |
574 | ||
a40cbfa3 | 575 | * Converted this directory to use an autoconf-generated configure script. |
252b5132 | 576 | |
a40cbfa3 | 577 | * ARM support, from Richard Earnshaw. |
252b5132 | 578 | |
a40cbfa3 NC |
579 | * Updated VMS support, from Pat Rankin, including considerably improved |
580 | debugging support. | |
252b5132 | 581 | |
a40cbfa3 | 582 | * Support for the control registers in the 68060. |
252b5132 | 583 | |
a40cbfa3 | 584 | * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to |
fa94de6b RM |
585 | provide for possible future gcc changes, for targets where gas provides some |
586 | features not available in the native assembler. If the native assembler is | |
a40cbfa3 | 587 | used, it should become obvious pretty quickly what the problem is. |
252b5132 | 588 | |
a40cbfa3 | 589 | * Usage message is available with "--help". |
252b5132 | 590 | |
fa94de6b | 591 | * The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3 |
a40cbfa3 | 592 | also, but didn't get into the NEWS file.) |
252b5132 | 593 | |
a40cbfa3 | 594 | * Weak symbol support for a.out. |
252b5132 | 595 | |
fa94de6b | 596 | * A bug in the listing code which could cause an infinite loop has been fixed. |
a40cbfa3 | 597 | Bugs in listings when generating a COFF object file have also been fixed. |
252b5132 | 598 | |
a40cbfa3 NC |
599 | * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by |
600 | Paul Kranenburg. | |
252b5132 | 601 | |
a40cbfa3 NC |
602 | * Improved Alpha support. Immediate constants can have a much larger range |
603 | now. Support for the 21164 has been contributed by Digital. | |
252b5132 | 604 | |
a40cbfa3 | 605 | * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall. |
252b5132 RH |
606 | |
607 | Changes in 2.3: | |
608 | ||
a40cbfa3 | 609 | * Mach i386 support, by David Mackenzie and Ken Raeburn. |
252b5132 | 610 | |
a40cbfa3 | 611 | * RS/6000 and PowerPC support by Ian Taylor. |
252b5132 | 612 | |
a40cbfa3 NC |
613 | * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit, |
614 | based on mail received from various people. The `-h#' option should work | |
615 | again too. | |
252b5132 | 616 | |
a40cbfa3 | 617 | * HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work |
fa94de6b | 618 | with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special |
a40cbfa3 NC |
619 | version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve |
620 | this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu | |
621 | in the "dist" directory. | |
252b5132 | 622 | |
a40cbfa3 NC |
623 | * Vax support in gas fixed for BSD, so it builds and seems to run a couple |
624 | simple tests okay. I haven't put it through extensive testing. (GNU make is | |
625 | currently required for BSD 4.3 builds.) | |
252b5132 | 626 | |
fa94de6b | 627 | * Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is |
a40cbfa3 NC |
628 | based on code donated by CMU, which used an a.out-based format. I'm afraid |
629 | the alpha-a.out support is pretty badly mangled, and much of it removed; | |
630 | making it work will require rewriting it as BFD support for the format anyways. | |
252b5132 | 631 | |
a40cbfa3 | 632 | * Irix 5 support. |
252b5132 | 633 | |
fa94de6b | 634 | * The test suites have been fixed up a bit, so that they should work with a |
a40cbfa3 | 635 | couple different versions of expect and dejagnu. |
252b5132 | 636 | |
fa94de6b RM |
637 | * Symbols' values are now handled internally as expressions, permitting more |
638 | flexibility in evaluating them in some cases. Some details of relocation | |
a40cbfa3 NC |
639 | handling have also changed, and simple constant pool management has been |
640 | added, to make the Alpha port easier. | |
252b5132 | 641 | |
a40cbfa3 NC |
642 | * New option "--statistics" for printing out program run times. This is |
643 | intended to be used with the gcc "-Q" option, which prints out times spent in | |
644 | various phases of compilation. (You should be able to get all of them | |
645 | printed out with "gcc -Q -Wa,--statistics", I think.) | |
252b5132 RH |
646 | |
647 | Changes in 2.2: | |
648 | ||
a40cbfa3 | 649 | * RS/6000 AIX and MIPS SGI Irix 5 support has been added. |
252b5132 | 650 | |
fa94de6b RM |
651 | * Configurations that are still in development (and therefore are convenient to |
652 | have listed in configure.in) still get rejected without a minor change to | |
a40cbfa3 NC |
653 | gas/Makefile.in, so people not doing development work shouldn't get the |
654 | impression that support for such configurations is actually believed to be | |
655 | reliable. | |
252b5132 | 656 | |
fa94de6b | 657 | * The program name (usually "as") is printed when a fatal error message is |
a40cbfa3 NC |
658 | displayed. This should prevent some confusion about the source of occasional |
659 | messages about "internal errors". | |
252b5132 | 660 | |
fa94de6b | 661 | * ELF support is falling into place. Support for the 386 should be working. |
a40cbfa3 | 662 | Support for SPARC Solaris is in. HPPA support from Utah is being integrated. |
252b5132 | 663 | |
a40cbfa3 NC |
664 | * Symbol values are maintained as expressions instead of being immediately |
665 | boiled down to add-symbol, sub-symbol, and constant. This permits slightly | |
666 | more complex calculations involving symbols whose values are not alreadey | |
667 | known. | |
252b5132 | 668 | |
a40cbfa3 | 669 | * DBX-style debugging info ("stabs") is now supported for COFF formats. |
fa94de6b RM |
670 | If any stabs directives are seen in the source, GAS will create two new |
671 | sections: a ".stab" and a ".stabstr" section. The format of the .stab | |
a40cbfa3 NC |
672 | section is nearly identical to the a.out symbol format, and .stabstr is |
673 | its string table. For this to be useful, you must have configured GCC | |
674 | to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB | |
675 | that can use the stab sections (4.11 or later). | |
252b5132 | 676 | |
fa94de6b | 677 | * LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS |
a40cbfa3 | 678 | support is in progress. |
252b5132 RH |
679 | |
680 | Changes in 2.1: | |
681 | ||
fa94de6b | 682 | * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been |
a40cbfa3 | 683 | incorporated, but not well tested yet. |
252b5132 | 684 | |
fa94de6b | 685 | * Altered the opcode table split for m68k; it should require less VM to compile |
a40cbfa3 | 686 | with gcc now. |
252b5132 | 687 | |
a40cbfa3 NC |
688 | * Some minor adjustments to add (Convergent Technologies') Miniframe support, |
689 | suggested by Ronald Cole. | |
252b5132 | 690 | |
a40cbfa3 NC |
691 | * HPPA support (running OSF only, not HPUX) has been contributed by Utah. This |
692 | includes improved ELF support, which I've started adapting for SPARC Solaris | |
693 | 2.x. Integration isn't completely, so it probably won't work. | |
252b5132 | 694 | |
a40cbfa3 | 695 | * HP9000/300 support, donated by HP, has been merged in. |
252b5132 | 696 | |
a40cbfa3 | 697 | * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support. |
252b5132 | 698 | |
a40cbfa3 | 699 | * Better error messages for unsupported configurations (e.g., hppa-hpux). |
252b5132 | 700 | |
a40cbfa3 | 701 | * Test suite framework is starting to become reasonable. |
252b5132 RH |
702 | |
703 | Changes in 2.0: | |
704 | ||
a40cbfa3 | 705 | * Mostly bug fixes. |
252b5132 | 706 | |
a40cbfa3 | 707 | * Some more merging of BFD and ELF code, but ELF still doesn't work. |
252b5132 RH |
708 | |
709 | Changes in 1.94: | |
710 | ||
a40cbfa3 NC |
711 | * BFD merge is partly done. Adventurous souls may try giving configure the |
712 | "--with-bfd-assembler" option. Currently, ELF format requires it, a.out | |
713 | format accepts it; SPARC CPU accepts it. It's the default only for OS "elf" | |
714 | or "solaris". (ELF isn't really supported yet. It needs work. I've got | |
715 | some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not | |
716 | fully merged yet.) | |
252b5132 | 717 | |
a40cbfa3 NC |
718 | * The 68K opcode table has been split in half. It should now compile under gcc |
719 | without consuming ridiculous amounts of memory. | |
252b5132 | 720 | |
a40cbfa3 NC |
721 | * A couple data structures have been reduced in size. This should result in |
722 | saving a little bit of space at runtime. | |
252b5132 | 723 | |
a40cbfa3 NC |
724 | * Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF |
725 | code provided ROSE format support, which I haven't merged in yet. (I can | |
726 | make it available, if anyone wants to try it out.) Ralph's code, for BSD | |
727 | 4.4, supports a.out format. We don't have ECOFF support in just yet; it's | |
728 | coming. | |
252b5132 | 729 | |
a40cbfa3 | 730 | * Support for the Hitachi H8/500 has been added. |
252b5132 | 731 | |
a40cbfa3 NC |
732 | * VMS host and target support should be working now, thanks chiefly to Eric |
733 | Youngdale. | |
252b5132 RH |
734 | |
735 | Changes in 1.93.01: | |
736 | ||
a40cbfa3 | 737 | * For m68k, support for more processors has been added: 68040, CPU32, 68851. |
252b5132 | 738 | |
a40cbfa3 | 739 | * For i386, .align is now power-of-two; was number-of-bytes. |
252b5132 | 740 | |
a40cbfa3 NC |
741 | * For m68k, "%" is now accepted before register names. For COFF format, which |
742 | doesn't use underscore prefixes for C labels, it is required, so variable "a0" | |
743 | can be distinguished from the register. | |
252b5132 | 744 | |
a40cbfa3 NC |
745 | * Last public release was 1.38. Lots of configuration changes since then, lots |
746 | of new CPUs and formats, lots of bugs fixed. | |
252b5132 RH |
747 | |
748 | \f | |
219d1afa | 749 | Copyright (C) 2012-2018 Free Software Foundation, Inc. |
5bf135a7 NC |
750 | |
751 | Copying and distribution of this file, with or without modification, | |
752 | are permitted in any medium without royalty provided the copyright | |
753 | notice and this notice are preserved. | |
754 | ||
252b5132 RH |
755 | Local variables: |
756 | fill-column: 79 | |
757 | End: |