x86: Update disassembler for VexWIG
[deliverable/binutils-gdb.git] / gas / NEWS
CommitLineData
252b5132 1-*- text -*-
96a84ea3 2
b4a3a7b4
L
3* Add -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property
4 notes. Add a --enable-x86-used-note configure time option to set the
5 default behavior. Set the default if the configure option is not used
6 to "no".
7
a693765e
CX
8* Add support for the MIPS Loongson EXTensions R2 (EXT2) instructions.
9
bdc6c06e
CX
10* Add support for the MIPS Loongson EXTensions (EXT) instructions.
11
716c08de
CX
12* Add support for the MIPS Loongson Content Address Memory (CAM) ASE.
13
b8891f8d
AJ
14* Add support for the C-SKY processor series.
15
8095d2f7
CX
16* Add support for the MIPS Loongson MultiMedia extensions Instructions (MMI)
17 ASE.
18
719d8288
NC
19Changes in 2.31:
20
fc6141f0
NC
21* The ADR and ADRL pseudo-instructions supported by the ARM assembler
22 now only set the bottom bit of the address of thumb function symbols
23 if the -mthumb-interwork command line option is active.
24
6f20c942
FS
25* Add support for the MIPS Global INValidate (GINV) ASE.
26
730c3174
SE
27* Add support for the MIPS Cyclic Redudancy Check (CRC) ASE.
28
7b4ae824
JD
29* Add support for the Freescale S12Z architecture.
30
0df8ad28
NC
31* Add --generate-missing-build-notes=[yes|no] option to create (or not) GNU
32 Build Attribute notes if none are present in the input sources. Add a
33 --enable-generate-build-notes=[yes|no] configure time option to set the
34 default behaviour. Set the default if the configure option is not used
35 to "no".
36
bd5dea88
L
37* Remove -mold-gcc command-line option for x86 targets.
38
b6f8c7c4
L
39* Add -O[2|s] command-line options to x86 assembler to enable alternate
40 shorter instruction encoding.
41
8f065d3b 42* Add support for .nops directive. It is currently supported only for
62a02d25
L
43 x86 targets.
44
9176ac5b
NC
45Changes in 2.30:
46
ba8826a8
AO
47* Add support for loaction views in DWARF debug line information.
48
55a09eb6
TG
49Changes in 2.29:
50
a91e1603
L
51* Add support for ELF SHF_GNU_MBIND.
52
f96bd6c2
PC
53* Add support for the WebAssembly file format and wasm32 ELF conversion.
54
7e0de605 55* PowerPC gas now checks that the correct register class is used in
ece5dcc1
AM
56 instructions. For instance, "addi %f4,%cr3,%r31" warns three times
57 that the registers are invalid.
7e0de605 58
93f11b16
DD
59* Add support for the Texas Instruments PRU processor.
60
0cda1e19
TP
61* Support for the ARMv8-R architecture and Cortex-R52 processor has been
62 added to the ARM port.
ced40572 63
9703a4ef
TG
64Changes in 2.28:
65
e23eba97
NC
66* Add support for the RISC-V architecture.
67
b19ea8d2 68* Add support for the ARM Cortex-M23 and Cortex-M33 processors.
ce1b0a45 69
96a84ea3
TG
70Changes in 2.27:
71
4e3e1fdf
L
72* Default to --enable-compressed-debug-sections=gas for Linux/x86 targets.
73
2edb36e7
NC
74* Add --no-pad-sections to stop the assembler from padding the end of output
75 sections up to their alignment boundary.
76
15afaa63
TP
77* Support for the ARMv8-M architecture has been added to the ARM port. Support
78 for the ARMv8-M Security and DSP Extensions has also been added to the ARM
79 port.
80
f36e33da
CZ
81* ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and
82 .extCoreRegister pseudo-ops that allow an user to define custom
83 instructions, conditional codes, auxiliary and core registers.
84
b8871f35
L
85* Add a configure option --enable-elf-stt-common to decide whether ELF
86 assembler should generate common symbols with the STT_COMMON type by
87 default. Default to no.
88
a05a5b64 89* New command-line option --elf-stt-common= for ELF targets to control
b8871f35
L
90 whether to generate common symbols with the STT_COMMON type.
91
9fb71ee4
NC
92* Add ability to set section flags and types via numeric values for ELF
93 based targets.
81c23f82 94
0cb4071e
L
95* Add a configure option --enable-x86-relax-relocations to decide whether
96 x86 assembler should generate relax relocations by default. Default to
97 yes, except for x86 Solaris targets older than Solaris 12.
98
a05a5b64 99* New command-line option -mrelax-relocations= for x86 target to control
0cb4071e
L
100 whether to generate relax relocations.
101
a05a5b64 102* New command-line option -mfence-as-lock-add=yes for x86 target to encode
9d3fc4e1
L
103 lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)".
104
4670103e
CZ
105* Add assembly-time relaxation option for ARC cpus.
106
9004b6bd
AB
107* Add --with-cpu=TYPE configure option for ARC gas. This allows the default
108 cpu type to be adjusted at configure time.
109
7feec526
TG
110Changes in 2.26:
111
edeefb67
L
112* Add a configure option --enable-compressed-debug-sections={all,gas} to
113 decide whether DWARF debug sections should be compressed by default.
e12fe555 114
886a2506
NC
115* Add support for the ARC EM/HS, and ARC600/700 architectures. Remove
116 assembler support for Argonaut RISC architectures.
117
d02603dc
NC
118* Symbol and label names can now be enclosed in double quotes (") which allows
119 them to contain characters that are not part of valid symbol names in high
120 level languages.
121
f33026a9
MW
122* Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The
123 previous spelling, -march=armv6zk, is still accepted.
124
88f0ea34
MW
125* Support for the ARMv8.1 architecture has been added to the Aarch64 port.
126 Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture
127 extensions has also been added to the Aarch64 port.
128
a5932920
MW
129* Support for the ARMv8.1 architecture has been added to the ARM port. Support
130 for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also
131 been added to the ARM port.
132
ea556d25
L
133* Extend --compress-debug-sections option to support
134 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
135 targets.
136
0d2b51ad
L
137* --compress-debug-sections is turned on for Linux/x86 by default.
138
c50415e2
TG
139Changes in 2.25:
140
f36e8886
BS
141* Add support for the AVR Tiny microcontrollers.
142
73589c9d
CS
143* Replace support for openrisc and or32 with support for or1k.
144
2e6976a8 145* Enhanced the ARM port to accept the assembler output from the CodeComposer
a05a5b64 146 Studio tool. Support is enabled via the new command-line option -mccs.
2e6976a8 147
35c08157
KLC
148* Add support for the Andes NDS32.
149
58ca03a2
TG
150Changes in 2.24:
151
13761a11
NC
152* Add support for the Texas Instruments MSP430X processor.
153
a05a5b64 154* Add -gdwarf-sections command-line option to enable per-code-section
b40bf0a2
NC
155 generation of DWARF .debug_line sections.
156
36591ba1
SL
157* Add support for Altera Nios II.
158
a3c62988
NC
159* Add support for the Imagination Technologies Meta processor.
160
5bf135a7
NC
161* Add support for the v850e3v5.
162
e8044f35
RS
163* Remove assembler support for MIPS ECOFF targets.
164
af18cb59
TG
165Changes in 2.23:
166
da2bb560
NC
167* Add support for the 64-bit ARM architecture: AArch64.
168
6927f982
NC
169* Add support for S12X processor.
170
b9c361e0
JL
171* Add support for the VLE extension to the PowerPC architecture.
172
f6c1a2d5
NC
173* Add support for the Freescale XGATE architecture.
174
fa94de6b
RM
175* Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock
176 directives. These are currently available only for x86 and ARM targets.
177
99c513f6
DD
178* Add support for the Renesas RL78 architecture.
179
cfb8c092
NC
180* Add support for the Adapteva EPIPHANY architecture.
181
fe13e45b 182* For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax.
29c048b6 183
a7142d94
TG
184Changes in 2.22:
185
69f56ae1 186* Add support for the Tilera TILEPro and TILE-Gx architectures.
44f45767 187
90b3661c 188Changes in 2.21:
44f45767 189
5fec8599
L
190* Gas no longer requires doubling of ampersands in macros.
191
40b36596
JM
192* Add support for the TMS320C6000 (TI C6X) processor family.
193
31907d5e
DK
194* GAS now understands an extended syntax in the .section directive flags
195 for COFF targets that allows the section's alignment to be specified. This
196 feature has also been backported to the 2.20 release series, starting with
197 2.20.1.
198
c7927a3c
NC
199* Add support for the Renesas RX processor.
200
a05a5b64 201* New command-line option, --compress-debug-sections, which requests
700c4060
CC
202 compression of DWARF debug information sections in the relocatable output
203 file. Compressed debug sections are supported by readelf, objdump, and
204 gold, but not currently by Gnu ld.
205
81c23f82
TG
206Changes in 2.20:
207
1cd986c5
NC
208* Added support for v850e2 and v850e2v3.
209
3e7a7d11
NC
210* GNU/Linux targets now supports "gnu_unique_object" as a value in the .type
211 pseudo op. It marks the symbol as being globally unique in the entire
212 process.
213
c921be7d
NC
214* ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified
215 in binary rather than text.
6e33da12 216
c1711530
DK
217* Add support for common symbol alignment to PE formats.
218
92846e72
CC
219* Add support for the new discriminator column in the DWARF line table,
220 with a discriminator operand for the .loc directive.
221
c3b7224a
NC
222* Add support for Sunplus score architecture.
223
d8045f23
NC
224* The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to
225 indicate that if the symbol is the target of a relocation, its value should
226 not be use. Instead the function should be invoked and its result used as
227 the value.
fa94de6b 228
84e94c90
NC
229* Add support for Lattice Mico32 (lm32) architecture.
230
fa94de6b 231* Add support for Xilinx MicroBlaze architecture.
caa03924 232
6e33da12
TG
233Changes in 2.19:
234
4f6d9c90
DJ
235* New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind
236 tables without runtime relocation.
237
a05a5b64 238* New command-line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which
6fd4f6cc
DD
239 adds compatibility with H'00 style hex constants.
240
a05a5b64 241* New command-line option, -msse-check=[none|error|warning], for x86
daf50ae7
L
242 targets.
243
a05a5b64 244* New sub-option added to the assembler's -a command-line switch to
83f10cb2
NC
245 generate a listing output. The 'g' sub-option will insert into the listing
246 various information about the assembly, such as assembler version, the
a05a5b64 247 command-line options used, and a time stamp.
83f10cb2 248
a05a5b64 249* New command-line option -msse2avx for x86 target to encode SSE
c0f3af97
L
250 instructions with VEX prefix.
251
f1f8f695 252* Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target.
c0f3af97 253
a05a5b64 254* New command-line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
ae40c993
L
255 -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg,
256 -mnaked-reg and -mold-gcc, for x86 targets.
257
38a57ae7
NC
258* Support for generating wide character strings has been added via the new
259 pseudo ops: .string16, .string32 and .string64.
260
85f10a01
MM
261* Support for SSE5 has been added to the i386 port.
262
7c3d153f
NC
263Changes in 2.18:
264
ec2655a6
NC
265* The GAS sources are now released under the GPLv3.
266
3d3d428f
NC
267* Support for the National Semiconductor CR16 target has been added.
268
3f9ce309
AM
269* Added gas .reloc pseudo. This is a low-level interface for creating
270 relocations.
271
99ad8390
NC
272* Add support for x86_64 PE+ target.
273
1c0d3aa6 274* Add support for Score target.
83518699 275
ec2655a6
NC
276Changes in 2.17:
277
d70c5fc7
NC
278* Support for the Infineon XC16X has been added by KPIT Cummins Infosystems.
279
08333dc4
NS
280* Support for ms2 architecture has been added.
281
b7b8fb1d
NC
282* Support for the Z80 processor family has been added.
283
3e8a519c
MM
284* Add support for the "@<file>" syntax to the command line, so that extra
285 switches can be read from <file>.
286
a05a5b64 287* The SH target supports a new command-line switch --enable-reg-prefix which,
37dedf66
NC
288 if enabled, will allow register names to be optionally prefixed with a $
289 character. This allows register names to be distinguished from label names.
fa94de6b 290
6eaeac8a
JB
291* Macros with a variable number of arguments are now supported. See the
292 documentation for how this works.
293
4bdd3565
NC
294* Added --reduce-memory-overheads switch to reduce the size of the hash
295 tables used, at the expense of longer assembly times, and
296 --hash-size=<NUMBER> to set the size of the hash tables used by gas.
297
5e75c3ab
JB
298* Macro names and macro parameter names can now be any identifier that would
299 also be legal as a symbol elsewhere. For macro parameter names, this is
300 known to cause problems in certain sources when the respective target uses
301 characters inconsistently, and thus macro parameter references may no longer
302 be recognized as such (see the documentation for details).
fa94de6b 303
d2c5f73e
NC
304* Support the .f_floating, .d_floating, .g_floating and .h_floating directives
305 for the VAX target in order to be more compatible with the VAX MACRO
306 assembler.
307
a05a5b64 308* New command-line option -mtune=[itanium1|itanium2] for IA64 targets.
8c2fda1d 309
957d91c1
NC
310Changes in 2.16:
311
fffeaa5f
JB
312* Redefinition of macros now results in an error.
313
a05a5b64 314* New command-line option -mhint.b=[ok|warning|error] for IA64 targets.
91d777ee 315
a05a5b64 316* New command-line option -munwind-check=[warning|error] for IA64
970d6792
L
317 targets.
318
f1dab70d
JB
319* The IA64 port now uses automatic dependency violation removal as its default
320 mode.
321
7499d566
NC
322* Port to MAXQ processor contributed by HCL Tech.
323
7ed4c4c5
NC
324* Added support for generating unwind tables for ARM ELF targets.
325
a05a5b64 326* Add a -g command-line option to generate debug information in the target's
329e276d
NC
327 preferred debug format.
328
1fe1f39c
NC
329* Support for the crx-elf target added.
330
1a320fbb 331* Support for the sh-symbianelf target added.
1fe1f39c 332
0503b355
BF
333* Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations
334 on pe[i]-i386; required for this target's DWARF 2 support.
335
6b6e92f4
NC
336* Support for Motorola MCF521x/5249/547x/548x added.
337
fd99574b
NC
338* Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC
339 instrucitons.
340
a05a5b64 341* New command-line option -mno-shared for MIPS ELF targets.
aa6975fb 342
a05a5b64 343* New command-line option --alternate and pseudo-ops .altmacro and .noaltmacro
caa32fe5
NC
344 added to enter (and leave) alternate macro syntax mode.
345
0477af35
NC
346Changes in 2.15:
347
7a7f4e42
CD
348* The MIPS -membedded-pic option (Embedded-PIC code generation) is
349 deprecated and will be removed in a future release.
350
6edf0760
NC
351* Added PIC m32r Linux (ELF) and support to M32R assembler.
352
09d92015
MM
353* Added support for ARM V6.
354
88da98f3
MS
355* Added support for sh4a and variants.
356
eb764db8
NC
357* Support for Renesas M32R2 added.
358
88da98f3
MS
359* Limited support for Mapping Symbols as specified in the ARM ELF
360 specification has been added to the arm assembler.
ed769ec1 361
0bbf2aa4
NC
362* On ARM architectures, added a new gas directive ".unreq" that undoes
363 definitions created by ".req".
364
3e602632
NC
365* Support for Motorola ColdFire MCF528x added.
366
05da4302
NC
367* Added --gstabs+ switch to enable the generation of STABS debug format
368 information with GNU extensions.
fa94de6b 369
6a265366
CD
370* Added support for MIPS64 Release 2.
371
8ad30312
NC
372* Added support for v850e1.
373
12b55ccc
L
374* Added -n switch for x86 assembler. By default, x86 GAS replaces
375 multiple nop instructions used for alignment within code sections
376 with multi-byte nop instructions such as leal 0(%esi,1),%esi. This
377 switch disables the optimization.
378
78849248
ILT
379* Removed -n option from MIPS assembler. It was not useful, and confused the
380 existing -non_shared option.
381
43c58ae6
CD
382Changes in 2.14:
383
69be0a2b
CD
384* Added support for MIPS32 Release 2.
385
e8fd7476
NC
386* Added support for Xtensa architecture.
387
e16bb312
NC
388* Support for Intel's iWMMXt processor (an ARM variant) added.
389
cce4814f
NC
390* An assembler test generator has been contributed and an example file that
391 uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c).
fa94de6b 392
5177500f
NC
393* Support for SH2E added.
394
fea17916
NC
395* GASP has now been removed.
396
004d9caf
NC
397* Support for Texas Instruments TMS320C4x and TMS320C3x series of
398 DSP's contributed by Michael Hayes and Svein E. Seldal.
fa94de6b 399
a40cbfa3
NC
400* Support for the Ubicom IP2xxx microcontroller added.
401
2cbb2eef
NC
402Changes in 2.13:
403
a40cbfa3
NC
404* Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
405 and FR500 included.
0ebb9a87 406
a40cbfa3 407* Support for DLX processor added.
52216602 408
a40cbfa3
NC
409* GASP has now been deprecated and will be removed in a future release. Use
410 the macro facilities in GAS instead.
3f965e60 411
a40cbfa3
NC
412* GASP now correctly parses floating point numbers. Unless the base is
413 explicitly specified, they are interpreted as decimal numbers regardless of
414 the currently specified base.
1ac57253 415
9a66911f
NC
416Changes in 2.12:
417
a40cbfa3 418* Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
49fda6c8 419
a40cbfa3 420* Support for the OpenRISC 32-bit embedded processor by OpenCores.
3b16e843 421
fa94de6b
RM
422* The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for
423 specifying the target instruction set. The old method of specifying the
a40cbfa3
NC
424 target processor has been deprecated, but is still accepted for
425 compatibility.
03b1477f 426
a40cbfa3
NC
427* Support for the VFP floating-point instruction set has been added to
428 the ARM assembler.
252b5132 429
a40cbfa3
NC
430* New psuedo op: .incbin to include a set of binary data at a given point
431 in the assembly. Contributed by Anders Norlander.
7e005732 432
a40cbfa3
NC
433* The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated
434 but still works for compatability.
ec68c924 435
fa94de6b 436* The MIPS assembler no longer issues a warning by default when it
a05a5b64 437 generates a nop instruction from a macro. The new command-line option
a40cbfa3 438 -n will turn on the warning.
63486801 439
2dac7317
JW
440Changes in 2.11:
441
500800ca
NC
442* Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff.
443
a40cbfa3 444* x86 gas now supports the full Pentium4 instruction set.
a167610d 445
a40cbfa3 446* Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs.
c0d8940f 447
a40cbfa3 448* Support for Motorola 68HC11 and 68HC12.
df86943d 449
a40cbfa3 450* Support for Texas Instruments TMS320C54x (tic54x).
39bec121 451
a40cbfa3 452* Support for IA-64.
2dac7317 453
a40cbfa3 454* Support for i860, by Jason Eckhardt.
22b36938 455
a40cbfa3 456* Support for CRIS (Axis Communications ETRAX series).
5bcac8a4 457
a40cbfa3 458* x86 gas has a new .arch pseudo op to specify the target CPU architecture.
a38cf1db 459
a05a5b64 460* x86 gas -q command-line option quietens warnings about register size changes
a40cbfa3
NC
461 due to suffix, indirect jmp/call without `*', stand-alone prefixes, and
462 translating various deprecated floating point instructions.
a38cf1db 463
252b5132
RH
464Changes in 2.10:
465
a40cbfa3
NC
466* Support for the ARM msr instruction was changed to only allow an immediate
467 operand when altering the flags field.
d14442f4 468
a40cbfa3 469* Support for ATMEL AVR.
adde6300 470
a40cbfa3 471* Support for IBM 370 ELF. Somewhat experimental.
b5ebe70e 472
a40cbfa3 473* Support for numbers with suffixes.
3fd9f047 474
a40cbfa3 475* Added support for breaking to the end of repeat loops.
6a6987a9 476
a40cbfa3 477* Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL).
6a6987a9 478
a40cbfa3 479* New .elseif pseudo-op added.
3fd9f047 480
a40cbfa3 481* New --fatal-warnings option.
1f776aa5 482
a40cbfa3 483* picoJava architecture support added.
252b5132 484
a40cbfa3 485* Motorola MCore 210 processor support added.
041dd5a9 486
fa94de6b 487* A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386
a40cbfa3 488 assembly programs with intel syntax.
252b5132 489
a40cbfa3 490* New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code.
252b5132 491
a40cbfa3 492* Added -gdwarf2 option to generate DWARF 2 debugging information.
041dd5a9 493
a40cbfa3 494* Full 16-bit mode support for i386.
252b5132 495
fa94de6b 496* Greatly improved instruction operand checking for i386. This change will
a40cbfa3
NC
497 produce errors or warnings on incorrect assembly code that previous versions
498 of gas accepted. If you get unexpected messages from code that worked with
499 older versions of gas, please double check the code before reporting a bug.
252b5132 500
a40cbfa3 501* Weak symbol support added for COFF targets.
252b5132 502
a40cbfa3 503* Mitsubishi D30V support added.
252b5132 504
a40cbfa3 505* Texas Instruments c80 (tms320c80) support added.
252b5132 506
a40cbfa3 507* i960 ELF support added.
bedf545c 508
a40cbfa3 509* ARM ELF support added.
a057431b 510
252b5132
RH
511Changes in 2.9:
512
a40cbfa3 513* Texas Instruments c30 (tms320c30) support added.
252b5132 514
fa94de6b 515* The assembler now optimizes the exception frame information generated by egcs
a40cbfa3 516 and gcc 2.8. The new --traditional-format option disables this optimization.
252b5132 517
a40cbfa3 518* Added --gstabs option to generate stabs debugging information.
252b5132 519
fa94de6b 520* The -a option takes a new suboption, m (e.g., -alm) to expand macros in a
a40cbfa3 521 listing.
252b5132 522
a40cbfa3 523* Added -MD option to print dependencies.
252b5132
RH
524
525Changes in 2.8:
526
a40cbfa3 527* BeOS support added.
252b5132 528
a40cbfa3 529* MIPS16 support added.
252b5132 530
a40cbfa3 531* Motorola ColdFire 5200 support added (configure for m68k and use -m5200).
252b5132 532
a40cbfa3 533* Alpha/VMS support added.
252b5132 534
a40cbfa3
NC
535* m68k options --base-size-default-16, --base-size-default-32,
536 --disp-size-default-16, and --disp-size-default-32 added.
252b5132 537
a40cbfa3
NC
538* The alignment directives now take an optional third argument, which is the
539 maximum number of bytes to skip. If doing the alignment would require
540 skipping more than the given number of bytes, the alignment is not done at
541 all.
252b5132 542
a40cbfa3 543* The ELF assembler has a new pseudo-op, .symver, used for symbol versioning.
252b5132 544
a40cbfa3
NC
545* The -a option takes a new suboption, c (e.g., -alc), to skip false
546 conditionals in listings.
252b5132 547
a40cbfa3
NC
548* Added new pseudo-op, .equiv; it's like .equ, except that it is an error if
549 the symbol is already defined.
252b5132
RH
550
551Changes in 2.7:
552
a40cbfa3
NC
553* The PowerPC assembler now allows the use of symbolic register names (r0,
554 etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.)
555 can be used any time. PowerPC 860 move to/from SPR instructions have been
556 added.
252b5132 557
a40cbfa3 558* Alpha Linux (ELF) support added.
252b5132 559
a40cbfa3 560* PowerPC ELF support added.
252b5132 561
a40cbfa3 562* m68k Linux (ELF) support added.
252b5132 563
a40cbfa3 564* i960 Hx/Jx support added.
252b5132 565
a40cbfa3 566* i386/PowerPC gnu-win32 support added.
252b5132 567
a40cbfa3
NC
568* SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the
569 default is to build COFF-only support. To get a set of tools that generate
fa94de6b 570 ELF (they'll understand both COFF and ELF), you must configure with
a40cbfa3 571 target=i386-unknown-sco3.2v5elf.
252b5132 572
a40cbfa3 573* m88k-motorola-sysv3* support added.
252b5132
RH
574
575Changes in 2.6:
576
a40cbfa3 577* Gas now directly supports macros, without requiring GASP.
252b5132 578
a40cbfa3
NC
579* Gas now has an MRI assembler compatibility mode. Use -M or --mri to select
580 MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the
581 ``.mri 0'' is seen; this can be convenient for inline assembler code.
252b5132 582
a40cbfa3 583* Added --defsym SYM=VALUE option.
252b5132 584
a40cbfa3 585* Added -mips4 support to MIPS assembler.
252b5132 586
a40cbfa3 587* Added PIC support to Solaris and SPARC SunOS 4 assembler.
252b5132
RH
588
589Changes in 2.4:
590
a40cbfa3 591* Converted this directory to use an autoconf-generated configure script.
252b5132 592
a40cbfa3 593* ARM support, from Richard Earnshaw.
252b5132 594
a40cbfa3
NC
595* Updated VMS support, from Pat Rankin, including considerably improved
596 debugging support.
252b5132 597
a40cbfa3 598* Support for the control registers in the 68060.
252b5132 599
a40cbfa3 600* Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
fa94de6b
RM
601 provide for possible future gcc changes, for targets where gas provides some
602 features not available in the native assembler. If the native assembler is
a40cbfa3 603 used, it should become obvious pretty quickly what the problem is.
252b5132 604
a40cbfa3 605* Usage message is available with "--help".
252b5132 606
fa94de6b 607* The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
a40cbfa3 608 also, but didn't get into the NEWS file.)
252b5132 609
a40cbfa3 610* Weak symbol support for a.out.
252b5132 611
fa94de6b 612* A bug in the listing code which could cause an infinite loop has been fixed.
a40cbfa3 613 Bugs in listings when generating a COFF object file have also been fixed.
252b5132 614
a40cbfa3
NC
615* Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by
616 Paul Kranenburg.
252b5132 617
a40cbfa3
NC
618* Improved Alpha support. Immediate constants can have a much larger range
619 now. Support for the 21164 has been contributed by Digital.
252b5132 620
a40cbfa3 621* Updated ns32k (pc532-mach, netbsd532) support from Ian Dall.
252b5132
RH
622
623Changes in 2.3:
624
a40cbfa3 625* Mach i386 support, by David Mackenzie and Ken Raeburn.
252b5132 626
a40cbfa3 627* RS/6000 and PowerPC support by Ian Taylor.
252b5132 628
a40cbfa3
NC
629* VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit,
630 based on mail received from various people. The `-h#' option should work
631 again too.
252b5132 632
a40cbfa3 633* HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work
fa94de6b 634 with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
a40cbfa3
NC
635 version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve
636 this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
637 in the "dist" directory.
252b5132 638
a40cbfa3
NC
639* Vax support in gas fixed for BSD, so it builds and seems to run a couple
640 simple tests okay. I haven't put it through extensive testing. (GNU make is
641 currently required for BSD 4.3 builds.)
252b5132 642
fa94de6b 643* Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
a40cbfa3
NC
644 based on code donated by CMU, which used an a.out-based format. I'm afraid
645 the alpha-a.out support is pretty badly mangled, and much of it removed;
646 making it work will require rewriting it as BFD support for the format anyways.
252b5132 647
a40cbfa3 648* Irix 5 support.
252b5132 649
fa94de6b 650* The test suites have been fixed up a bit, so that they should work with a
a40cbfa3 651 couple different versions of expect and dejagnu.
252b5132 652
fa94de6b
RM
653* Symbols' values are now handled internally as expressions, permitting more
654 flexibility in evaluating them in some cases. Some details of relocation
a40cbfa3
NC
655 handling have also changed, and simple constant pool management has been
656 added, to make the Alpha port easier.
252b5132 657
a40cbfa3
NC
658* New option "--statistics" for printing out program run times. This is
659 intended to be used with the gcc "-Q" option, which prints out times spent in
660 various phases of compilation. (You should be able to get all of them
661 printed out with "gcc -Q -Wa,--statistics", I think.)
252b5132
RH
662
663Changes in 2.2:
664
a40cbfa3 665* RS/6000 AIX and MIPS SGI Irix 5 support has been added.
252b5132 666
fa94de6b
RM
667* Configurations that are still in development (and therefore are convenient to
668 have listed in configure.in) still get rejected without a minor change to
a40cbfa3
NC
669 gas/Makefile.in, so people not doing development work shouldn't get the
670 impression that support for such configurations is actually believed to be
671 reliable.
252b5132 672
fa94de6b 673* The program name (usually "as") is printed when a fatal error message is
a40cbfa3
NC
674 displayed. This should prevent some confusion about the source of occasional
675 messages about "internal errors".
252b5132 676
fa94de6b 677* ELF support is falling into place. Support for the 386 should be working.
a40cbfa3 678 Support for SPARC Solaris is in. HPPA support from Utah is being integrated.
252b5132 679
a40cbfa3
NC
680* Symbol values are maintained as expressions instead of being immediately
681 boiled down to add-symbol, sub-symbol, and constant. This permits slightly
682 more complex calculations involving symbols whose values are not alreadey
683 known.
252b5132 684
a40cbfa3 685* DBX-style debugging info ("stabs") is now supported for COFF formats.
fa94de6b
RM
686 If any stabs directives are seen in the source, GAS will create two new
687 sections: a ".stab" and a ".stabstr" section. The format of the .stab
a40cbfa3
NC
688 section is nearly identical to the a.out symbol format, and .stabstr is
689 its string table. For this to be useful, you must have configured GCC
690 to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
691 that can use the stab sections (4.11 or later).
252b5132 692
fa94de6b 693* LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
a40cbfa3 694 support is in progress.
252b5132
RH
695
696Changes in 2.1:
697
fa94de6b 698* Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
a40cbfa3 699 incorporated, but not well tested yet.
252b5132 700
fa94de6b 701* Altered the opcode table split for m68k; it should require less VM to compile
a40cbfa3 702 with gcc now.
252b5132 703
a40cbfa3
NC
704* Some minor adjustments to add (Convergent Technologies') Miniframe support,
705 suggested by Ronald Cole.
252b5132 706
a40cbfa3
NC
707* HPPA support (running OSF only, not HPUX) has been contributed by Utah. This
708 includes improved ELF support, which I've started adapting for SPARC Solaris
709 2.x. Integration isn't completely, so it probably won't work.
252b5132 710
a40cbfa3 711* HP9000/300 support, donated by HP, has been merged in.
252b5132 712
a40cbfa3 713* Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support.
252b5132 714
a40cbfa3 715* Better error messages for unsupported configurations (e.g., hppa-hpux).
252b5132 716
a40cbfa3 717* Test suite framework is starting to become reasonable.
252b5132
RH
718
719Changes in 2.0:
720
a40cbfa3 721* Mostly bug fixes.
252b5132 722
a40cbfa3 723* Some more merging of BFD and ELF code, but ELF still doesn't work.
252b5132
RH
724
725Changes in 1.94:
726
a40cbfa3
NC
727* BFD merge is partly done. Adventurous souls may try giving configure the
728 "--with-bfd-assembler" option. Currently, ELF format requires it, a.out
729 format accepts it; SPARC CPU accepts it. It's the default only for OS "elf"
730 or "solaris". (ELF isn't really supported yet. It needs work. I've got
731 some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not
732 fully merged yet.)
252b5132 733
a40cbfa3
NC
734* The 68K opcode table has been split in half. It should now compile under gcc
735 without consuming ridiculous amounts of memory.
252b5132 736
a40cbfa3
NC
737* A couple data structures have been reduced in size. This should result in
738 saving a little bit of space at runtime.
252b5132 739
a40cbfa3
NC
740* Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF
741 code provided ROSE format support, which I haven't merged in yet. (I can
742 make it available, if anyone wants to try it out.) Ralph's code, for BSD
743 4.4, supports a.out format. We don't have ECOFF support in just yet; it's
744 coming.
252b5132 745
a40cbfa3 746* Support for the Hitachi H8/500 has been added.
252b5132 747
a40cbfa3
NC
748* VMS host and target support should be working now, thanks chiefly to Eric
749 Youngdale.
252b5132
RH
750
751Changes in 1.93.01:
752
a40cbfa3 753* For m68k, support for more processors has been added: 68040, CPU32, 68851.
252b5132 754
a40cbfa3 755* For i386, .align is now power-of-two; was number-of-bytes.
252b5132 756
a40cbfa3
NC
757* For m68k, "%" is now accepted before register names. For COFF format, which
758 doesn't use underscore prefixes for C labels, it is required, so variable "a0"
759 can be distinguished from the register.
252b5132 760
a40cbfa3
NC
761* Last public release was 1.38. Lots of configuration changes since then, lots
762 of new CPUs and formats, lots of bugs fixed.
252b5132
RH
763
764\f
219d1afa 765Copyright (C) 2012-2018 Free Software Foundation, Inc.
5bf135a7
NC
766
767Copying and distribution of this file, with or without modification,
768are permitted in any medium without royalty provided the copyright
769notice and this notice are preserved.
770
252b5132
RH
771Local variables:
772fill-column: 79
773End:
This page took 0.87941 seconds and 4 git commands to generate.