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