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