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Add markers for 2.33 branch to NEWS and ChangeLog files.
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252b5132 1-*- text -*-
96a84ea3 2
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3Changes in 2.33:
4
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5* Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
6 instructions.
7
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8* For MIPS, Add -m[no-]fix-loongson3-llsc option to fix (or not) Loongson3
9 LLSC Errata. Add a --enable-mips-fix-loongson3-llsc=[yes|no] configure
10 time option to set the default behavior. Set the default if the configure
11 option is not used to "no".
6f2117ba 12
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13* Add support for the Arm Cortex-A76AE, Cortex-A77 and Cortex-M35P
14 processors.
15
16* Add support for the AArch64 Cortex-A34, Cortex-A65, Cortex-A65AE,
17 Cortex-A76AE, and Cortex-A77 processors.
18
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19* Add .float16 directive for both Arm and AArch64 to allow encoding of 16-bit
20 floating point literals. Add .float16_format directive and
21 -mfp16-format=[ieee|alternative] option for Arm to control the format of the
22 encoding.
23
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24Changes in 2.32:
25
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26* Add -mvexwig=[0|1] option to x86 assembler to control encoding of
27 VEX.W-ignored (WIG) VEX instructions.
28
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29* Add -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property
30 notes. Add a --enable-x86-used-note configure time option to set the
31 default behavior. Set the default if the configure option is not used
32 to "no".
33
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34* Add support for the MIPS Loongson EXTensions R2 (EXT2) instructions.
35
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36* Add support for the MIPS Loongson EXTensions (EXT) instructions.
37
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38* Add support for the MIPS Loongson Content Address Memory (CAM) ASE.
39
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40* Add support for the C-SKY processor series.
41
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42* Add support for the MIPS Loongson MultiMedia extensions Instructions (MMI)
43 ASE.
44
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45Changes in 2.31:
46
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47* The ADR and ADRL pseudo-instructions supported by the ARM assembler
48 now only set the bottom bit of the address of thumb function symbols
49 if the -mthumb-interwork command line option is active.
50
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51* Add support for the MIPS Global INValidate (GINV) ASE.
52
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53* Add support for the MIPS Cyclic Redudancy Check (CRC) ASE.
54
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55* Add support for the Freescale S12Z architecture.
56
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57* Add --generate-missing-build-notes=[yes|no] option to create (or not) GNU
58 Build Attribute notes if none are present in the input sources. Add a
59 --enable-generate-build-notes=[yes|no] configure time option to set the
60 default behaviour. Set the default if the configure option is not used
61 to "no".
62
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63* Remove -mold-gcc command-line option for x86 targets.
64
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65* Add -O[2|s] command-line options to x86 assembler to enable alternate
66 shorter instruction encoding.
67
8f065d3b 68* Add support for .nops directive. It is currently supported only for
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69 x86 targets.
70
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71Changes in 2.30:
72
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73* Add support for loaction views in DWARF debug line information.
74
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75Changes in 2.29:
76
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77* Add support for ELF SHF_GNU_MBIND.
78
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79* Add support for the WebAssembly file format and wasm32 ELF conversion.
80
7e0de605 81* PowerPC gas now checks that the correct register class is used in
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82 instructions. For instance, "addi %f4,%cr3,%r31" warns three times
83 that the registers are invalid.
7e0de605 84
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85* Add support for the Texas Instruments PRU processor.
86
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87* Support for the ARMv8-R architecture and Cortex-R52 processor has been
88 added to the ARM port.
ced40572 89
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90Changes in 2.28:
91
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92* Add support for the RISC-V architecture.
93
b19ea8d2 94* Add support for the ARM Cortex-M23 and Cortex-M33 processors.
ce1b0a45 95
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96Changes in 2.27:
97
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98* Default to --enable-compressed-debug-sections=gas for Linux/x86 targets.
99
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100* Add --no-pad-sections to stop the assembler from padding the end of output
101 sections up to their alignment boundary.
102
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103* Support for the ARMv8-M architecture has been added to the ARM port. Support
104 for the ARMv8-M Security and DSP Extensions has also been added to the ARM
105 port.
106
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107* ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and
108 .extCoreRegister pseudo-ops that allow an user to define custom
109 instructions, conditional codes, auxiliary and core registers.
110
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111* Add a configure option --enable-elf-stt-common to decide whether ELF
112 assembler should generate common symbols with the STT_COMMON type by
113 default. Default to no.
114
a05a5b64 115* New command-line option --elf-stt-common= for ELF targets to control
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116 whether to generate common symbols with the STT_COMMON type.
117
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118* Add ability to set section flags and types via numeric values for ELF
119 based targets.
81c23f82 120
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121* Add a configure option --enable-x86-relax-relocations to decide whether
122 x86 assembler should generate relax relocations by default. Default to
123 yes, except for x86 Solaris targets older than Solaris 12.
124
a05a5b64 125* New command-line option -mrelax-relocations= for x86 target to control
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126 whether to generate relax relocations.
127
a05a5b64 128* New command-line option -mfence-as-lock-add=yes for x86 target to encode
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129 lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)".
130
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131* Add assembly-time relaxation option for ARC cpus.
132
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133* Add --with-cpu=TYPE configure option for ARC gas. This allows the default
134 cpu type to be adjusted at configure time.
135
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136Changes in 2.26:
137
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138* Add a configure option --enable-compressed-debug-sections={all,gas} to
139 decide whether DWARF debug sections should be compressed by default.
e12fe555 140
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141* Add support for the ARC EM/HS, and ARC600/700 architectures. Remove
142 assembler support for Argonaut RISC architectures.
143
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144* Symbol and label names can now be enclosed in double quotes (") which allows
145 them to contain characters that are not part of valid symbol names in high
146 level languages.
147
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148* Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The
149 previous spelling, -march=armv6zk, is still accepted.
150
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151* Support for the ARMv8.1 architecture has been added to the Aarch64 port.
152 Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture
153 extensions has also been added to the Aarch64 port.
154
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155* Support for the ARMv8.1 architecture has been added to the ARM port. Support
156 for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also
157 been added to the ARM port.
158
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159* Extend --compress-debug-sections option to support
160 --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
161 targets.
162
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163* --compress-debug-sections is turned on for Linux/x86 by default.
164
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165Changes in 2.25:
166
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167* Add support for the AVR Tiny microcontrollers.
168
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169* Replace support for openrisc and or32 with support for or1k.
170
2e6976a8 171* Enhanced the ARM port to accept the assembler output from the CodeComposer
a05a5b64 172 Studio tool. Support is enabled via the new command-line option -mccs.
2e6976a8 173
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174* Add support for the Andes NDS32.
175
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176Changes in 2.24:
177
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178* Add support for the Texas Instruments MSP430X processor.
179
a05a5b64 180* Add -gdwarf-sections command-line option to enable per-code-section
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181 generation of DWARF .debug_line sections.
182
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183* Add support for Altera Nios II.
184
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185* Add support for the Imagination Technologies Meta processor.
186
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187* Add support for the v850e3v5.
188
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189* Remove assembler support for MIPS ECOFF targets.
190
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191Changes in 2.23:
192
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193* Add support for the 64-bit ARM architecture: AArch64.
194
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195* Add support for S12X processor.
196
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197* Add support for the VLE extension to the PowerPC architecture.
198
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199* Add support for the Freescale XGATE architecture.
200
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201* Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock
202 directives. These are currently available only for x86 and ARM targets.
203
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204* Add support for the Renesas RL78 architecture.
205
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206* Add support for the Adapteva EPIPHANY architecture.
207
fe13e45b 208* For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax.
29c048b6 209
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210Changes in 2.22:
211
69f56ae1 212* Add support for the Tilera TILEPro and TILE-Gx architectures.
44f45767 213
90b3661c 214Changes in 2.21:
44f45767 215
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216* Gas no longer requires doubling of ampersands in macros.
217
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218* Add support for the TMS320C6000 (TI C6X) processor family.
219
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220* GAS now understands an extended syntax in the .section directive flags
221 for COFF targets that allows the section's alignment to be specified. This
222 feature has also been backported to the 2.20 release series, starting with
223 2.20.1.
224
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225* Add support for the Renesas RX processor.
226
a05a5b64 227* New command-line option, --compress-debug-sections, which requests
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228 compression of DWARF debug information sections in the relocatable output
229 file. Compressed debug sections are supported by readelf, objdump, and
230 gold, but not currently by Gnu ld.
231
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232Changes in 2.20:
233
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234* Added support for v850e2 and v850e2v3.
235
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236* GNU/Linux targets now supports "gnu_unique_object" as a value in the .type
237 pseudo op. It marks the symbol as being globally unique in the entire
238 process.
239
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240* ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified
241 in binary rather than text.
6e33da12 242
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243* Add support for common symbol alignment to PE formats.
244
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245* Add support for the new discriminator column in the DWARF line table,
246 with a discriminator operand for the .loc directive.
247
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248* Add support for Sunplus score architecture.
249
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250* The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to
251 indicate that if the symbol is the target of a relocation, its value should
252 not be use. Instead the function should be invoked and its result used as
253 the value.
fa94de6b 254
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255* Add support for Lattice Mico32 (lm32) architecture.
256
fa94de6b 257* Add support for Xilinx MicroBlaze architecture.
caa03924 258
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259Changes in 2.19:
260
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261* New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind
262 tables without runtime relocation.
263
a05a5b64 264* New command-line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which
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265 adds compatibility with H'00 style hex constants.
266
a05a5b64 267* New command-line option, -msse-check=[none|error|warning], for x86
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268 targets.
269
a05a5b64 270* New sub-option added to the assembler's -a command-line switch to
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271 generate a listing output. The 'g' sub-option will insert into the listing
272 various information about the assembly, such as assembler version, the
a05a5b64 273 command-line options used, and a time stamp.
83f10cb2 274
a05a5b64 275* New command-line option -msse2avx for x86 target to encode SSE
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276 instructions with VEX prefix.
277
f1f8f695 278* Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target.
c0f3af97 279
a05a5b64 280* New command-line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
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281 -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg,
282 -mnaked-reg and -mold-gcc, for x86 targets.
283
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284* Support for generating wide character strings has been added via the new
285 pseudo ops: .string16, .string32 and .string64.
286
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287* Support for SSE5 has been added to the i386 port.
288
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289Changes in 2.18:
290
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291* The GAS sources are now released under the GPLv3.
292
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293* Support for the National Semiconductor CR16 target has been added.
294
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295* Added gas .reloc pseudo. This is a low-level interface for creating
296 relocations.
297
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298* Add support for x86_64 PE+ target.
299
1c0d3aa6 300* Add support for Score target.
83518699 301
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302Changes in 2.17:
303
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304* Support for the Infineon XC16X has been added by KPIT Cummins Infosystems.
305
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306* Support for ms2 architecture has been added.
307
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308* Support for the Z80 processor family has been added.
309
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310* Add support for the "@<file>" syntax to the command line, so that extra
311 switches can be read from <file>.
312
a05a5b64 313* The SH target supports a new command-line switch --enable-reg-prefix which,
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314 if enabled, will allow register names to be optionally prefixed with a $
315 character. This allows register names to be distinguished from label names.
fa94de6b 316
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317* Macros with a variable number of arguments are now supported. See the
318 documentation for how this works.
319
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320* Added --reduce-memory-overheads switch to reduce the size of the hash
321 tables used, at the expense of longer assembly times, and
322 --hash-size=<NUMBER> to set the size of the hash tables used by gas.
323
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324* Macro names and macro parameter names can now be any identifier that would
325 also be legal as a symbol elsewhere. For macro parameter names, this is
326 known to cause problems in certain sources when the respective target uses
327 characters inconsistently, and thus macro parameter references may no longer
328 be recognized as such (see the documentation for details).
fa94de6b 329
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330* Support the .f_floating, .d_floating, .g_floating and .h_floating directives
331 for the VAX target in order to be more compatible with the VAX MACRO
332 assembler.
333
a05a5b64 334* New command-line option -mtune=[itanium1|itanium2] for IA64 targets.
8c2fda1d 335
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336Changes in 2.16:
337
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338* Redefinition of macros now results in an error.
339
a05a5b64 340* New command-line option -mhint.b=[ok|warning|error] for IA64 targets.
91d777ee 341
a05a5b64 342* New command-line option -munwind-check=[warning|error] for IA64
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343 targets.
344
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345* The IA64 port now uses automatic dependency violation removal as its default
346 mode.
347
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348* Port to MAXQ processor contributed by HCL Tech.
349
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350* Added support for generating unwind tables for ARM ELF targets.
351
a05a5b64 352* Add a -g command-line option to generate debug information in the target's
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353 preferred debug format.
354
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355* Support for the crx-elf target added.
356
1a320fbb 357* Support for the sh-symbianelf target added.
1fe1f39c 358
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359* Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations
360 on pe[i]-i386; required for this target's DWARF 2 support.
361
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362* Support for Motorola MCF521x/5249/547x/548x added.
363
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364* Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC
365 instrucitons.
366
a05a5b64 367* New command-line option -mno-shared for MIPS ELF targets.
aa6975fb 368
a05a5b64 369* New command-line option --alternate and pseudo-ops .altmacro and .noaltmacro
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370 added to enter (and leave) alternate macro syntax mode.
371
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372Changes in 2.15:
373
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374* The MIPS -membedded-pic option (Embedded-PIC code generation) is
375 deprecated and will be removed in a future release.
376
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377* Added PIC m32r Linux (ELF) and support to M32R assembler.
378
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379* Added support for ARM V6.
380
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381* Added support for sh4a and variants.
382
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383* Support for Renesas M32R2 added.
384
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385* Limited support for Mapping Symbols as specified in the ARM ELF
386 specification has been added to the arm assembler.
ed769ec1 387
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388* On ARM architectures, added a new gas directive ".unreq" that undoes
389 definitions created by ".req".
390
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391* Support for Motorola ColdFire MCF528x added.
392
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393* Added --gstabs+ switch to enable the generation of STABS debug format
394 information with GNU extensions.
fa94de6b 395
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CD
396* Added support for MIPS64 Release 2.
397
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NC
398* Added support for v850e1.
399
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400* Added -n switch for x86 assembler. By default, x86 GAS replaces
401 multiple nop instructions used for alignment within code sections
402 with multi-byte nop instructions such as leal 0(%esi,1),%esi. This
403 switch disables the optimization.
404
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405* Removed -n option from MIPS assembler. It was not useful, and confused the
406 existing -non_shared option.
407
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CD
408Changes in 2.14:
409
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410* Added support for MIPS32 Release 2.
411
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412* Added support for Xtensa architecture.
413
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414* Support for Intel's iWMMXt processor (an ARM variant) added.
415
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416* An assembler test generator has been contributed and an example file that
417 uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c).
fa94de6b 418
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419* Support for SH2E added.
420
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421* GASP has now been removed.
422
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423* Support for Texas Instruments TMS320C4x and TMS320C3x series of
424 DSP's contributed by Michael Hayes and Svein E. Seldal.
fa94de6b 425
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426* Support for the Ubicom IP2xxx microcontroller added.
427
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NC
428Changes in 2.13:
429
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430* Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
431 and FR500 included.
0ebb9a87 432
a40cbfa3 433* Support for DLX processor added.
52216602 434
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NC
435* GASP has now been deprecated and will be removed in a future release. Use
436 the macro facilities in GAS instead.
3f965e60 437
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NC
438* GASP now correctly parses floating point numbers. Unless the base is
439 explicitly specified, they are interpreted as decimal numbers regardless of
440 the currently specified base.
1ac57253 441
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442Changes in 2.12:
443
a40cbfa3 444* Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
49fda6c8 445
a40cbfa3 446* Support for the OpenRISC 32-bit embedded processor by OpenCores.
3b16e843 447
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448* The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for
449 specifying the target instruction set. The old method of specifying the
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450 target processor has been deprecated, but is still accepted for
451 compatibility.
03b1477f 452
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453* Support for the VFP floating-point instruction set has been added to
454 the ARM assembler.
252b5132 455
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456* New psuedo op: .incbin to include a set of binary data at a given point
457 in the assembly. Contributed by Anders Norlander.
7e005732 458
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459* The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated
460 but still works for compatability.
ec68c924 461
fa94de6b 462* The MIPS assembler no longer issues a warning by default when it
a05a5b64 463 generates a nop instruction from a macro. The new command-line option
a40cbfa3 464 -n will turn on the warning.
63486801 465
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466Changes in 2.11:
467
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468* Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff.
469
a40cbfa3 470* x86 gas now supports the full Pentium4 instruction set.
a167610d 471
a40cbfa3 472* Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs.
c0d8940f 473
a40cbfa3 474* Support for Motorola 68HC11 and 68HC12.
df86943d 475
a40cbfa3 476* Support for Texas Instruments TMS320C54x (tic54x).
39bec121 477
a40cbfa3 478* Support for IA-64.
2dac7317 479
a40cbfa3 480* Support for i860, by Jason Eckhardt.
22b36938 481
a40cbfa3 482* Support for CRIS (Axis Communications ETRAX series).
5bcac8a4 483
a40cbfa3 484* x86 gas has a new .arch pseudo op to specify the target CPU architecture.
a38cf1db 485
a05a5b64 486* x86 gas -q command-line option quietens warnings about register size changes
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487 due to suffix, indirect jmp/call without `*', stand-alone prefixes, and
488 translating various deprecated floating point instructions.
a38cf1db 489
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490Changes in 2.10:
491
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492* Support for the ARM msr instruction was changed to only allow an immediate
493 operand when altering the flags field.
d14442f4 494
a40cbfa3 495* Support for ATMEL AVR.
adde6300 496
a40cbfa3 497* Support for IBM 370 ELF. Somewhat experimental.
b5ebe70e 498
a40cbfa3 499* Support for numbers with suffixes.
3fd9f047 500
a40cbfa3 501* Added support for breaking to the end of repeat loops.
6a6987a9 502
a40cbfa3 503* Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL).
6a6987a9 504
a40cbfa3 505* New .elseif pseudo-op added.
3fd9f047 506
a40cbfa3 507* New --fatal-warnings option.
1f776aa5 508
a40cbfa3 509* picoJava architecture support added.
252b5132 510
a40cbfa3 511* Motorola MCore 210 processor support added.
041dd5a9 512
fa94de6b 513* A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386
a40cbfa3 514 assembly programs with intel syntax.
252b5132 515
a40cbfa3 516* New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code.
252b5132 517
a40cbfa3 518* Added -gdwarf2 option to generate DWARF 2 debugging information.
041dd5a9 519
a40cbfa3 520* Full 16-bit mode support for i386.
252b5132 521
fa94de6b 522* Greatly improved instruction operand checking for i386. This change will
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523 produce errors or warnings on incorrect assembly code that previous versions
524 of gas accepted. If you get unexpected messages from code that worked with
525 older versions of gas, please double check the code before reporting a bug.
252b5132 526
a40cbfa3 527* Weak symbol support added for COFF targets.
252b5132 528
a40cbfa3 529* Mitsubishi D30V support added.
252b5132 530
a40cbfa3 531* Texas Instruments c80 (tms320c80) support added.
252b5132 532
a40cbfa3 533* i960 ELF support added.
bedf545c 534
a40cbfa3 535* ARM ELF support added.
a057431b 536
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537Changes in 2.9:
538
a40cbfa3 539* Texas Instruments c30 (tms320c30) support added.
252b5132 540
fa94de6b 541* The assembler now optimizes the exception frame information generated by egcs
a40cbfa3 542 and gcc 2.8. The new --traditional-format option disables this optimization.
252b5132 543
a40cbfa3 544* Added --gstabs option to generate stabs debugging information.
252b5132 545
fa94de6b 546* The -a option takes a new suboption, m (e.g., -alm) to expand macros in a
a40cbfa3 547 listing.
252b5132 548
a40cbfa3 549* Added -MD option to print dependencies.
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550
551Changes in 2.8:
552
a40cbfa3 553* BeOS support added.
252b5132 554
a40cbfa3 555* MIPS16 support added.
252b5132 556
a40cbfa3 557* Motorola ColdFire 5200 support added (configure for m68k and use -m5200).
252b5132 558
a40cbfa3 559* Alpha/VMS support added.
252b5132 560
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561* m68k options --base-size-default-16, --base-size-default-32,
562 --disp-size-default-16, and --disp-size-default-32 added.
252b5132 563
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564* The alignment directives now take an optional third argument, which is the
565 maximum number of bytes to skip. If doing the alignment would require
566 skipping more than the given number of bytes, the alignment is not done at
567 all.
252b5132 568
a40cbfa3 569* The ELF assembler has a new pseudo-op, .symver, used for symbol versioning.
252b5132 570
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571* The -a option takes a new suboption, c (e.g., -alc), to skip false
572 conditionals in listings.
252b5132 573
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574* Added new pseudo-op, .equiv; it's like .equ, except that it is an error if
575 the symbol is already defined.
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576
577Changes in 2.7:
578
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579* The PowerPC assembler now allows the use of symbolic register names (r0,
580 etc.) if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.)
581 can be used any time. PowerPC 860 move to/from SPR instructions have been
582 added.
252b5132 583
a40cbfa3 584* Alpha Linux (ELF) support added.
252b5132 585
a40cbfa3 586* PowerPC ELF support added.
252b5132 587
a40cbfa3 588* m68k Linux (ELF) support added.
252b5132 589
a40cbfa3 590* i960 Hx/Jx support added.
252b5132 591
a40cbfa3 592* i386/PowerPC gnu-win32 support added.
252b5132 593
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594* SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the
595 default is to build COFF-only support. To get a set of tools that generate
fa94de6b 596 ELF (they'll understand both COFF and ELF), you must configure with
a40cbfa3 597 target=i386-unknown-sco3.2v5elf.
252b5132 598
a40cbfa3 599* m88k-motorola-sysv3* support added.
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600
601Changes in 2.6:
602
a40cbfa3 603* Gas now directly supports macros, without requiring GASP.
252b5132 604
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605* Gas now has an MRI assembler compatibility mode. Use -M or --mri to select
606 MRI mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the
607 ``.mri 0'' is seen; this can be convenient for inline assembler code.
252b5132 608
a40cbfa3 609* Added --defsym SYM=VALUE option.
252b5132 610
a40cbfa3 611* Added -mips4 support to MIPS assembler.
252b5132 612
a40cbfa3 613* Added PIC support to Solaris and SPARC SunOS 4 assembler.
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614
615Changes in 2.4:
616
a40cbfa3 617* Converted this directory to use an autoconf-generated configure script.
252b5132 618
a40cbfa3 619* ARM support, from Richard Earnshaw.
252b5132 620
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621* Updated VMS support, from Pat Rankin, including considerably improved
622 debugging support.
252b5132 623
a40cbfa3 624* Support for the control registers in the 68060.
252b5132 625
a40cbfa3 626* Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
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627 provide for possible future gcc changes, for targets where gas provides some
628 features not available in the native assembler. If the native assembler is
a40cbfa3 629 used, it should become obvious pretty quickly what the problem is.
252b5132 630
a40cbfa3 631* Usage message is available with "--help".
252b5132 632
fa94de6b 633* The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
a40cbfa3 634 also, but didn't get into the NEWS file.)
252b5132 635
a40cbfa3 636* Weak symbol support for a.out.
252b5132 637
fa94de6b 638* A bug in the listing code which could cause an infinite loop has been fixed.
a40cbfa3 639 Bugs in listings when generating a COFF object file have also been fixed.
252b5132 640
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641* Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by
642 Paul Kranenburg.
252b5132 643
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644* Improved Alpha support. Immediate constants can have a much larger range
645 now. Support for the 21164 has been contributed by Digital.
252b5132 646
a40cbfa3 647* Updated ns32k (pc532-mach, netbsd532) support from Ian Dall.
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648
649Changes in 2.3:
650
a40cbfa3 651* Mach i386 support, by David Mackenzie and Ken Raeburn.
252b5132 652
a40cbfa3 653* RS/6000 and PowerPC support by Ian Taylor.
252b5132 654
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655* VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit,
656 based on mail received from various people. The `-h#' option should work
657 again too.
252b5132 658
a40cbfa3 659* HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work
fa94de6b 660 with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
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661 version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve
662 this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
663 in the "dist" directory.
252b5132 664
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665* Vax support in gas fixed for BSD, so it builds and seems to run a couple
666 simple tests okay. I haven't put it through extensive testing. (GNU make is
667 currently required for BSD 4.3 builds.)
252b5132 668
fa94de6b 669* Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
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670 based on code donated by CMU, which used an a.out-based format. I'm afraid
671 the alpha-a.out support is pretty badly mangled, and much of it removed;
672 making it work will require rewriting it as BFD support for the format anyways.
252b5132 673
a40cbfa3 674* Irix 5 support.
252b5132 675
fa94de6b 676* The test suites have been fixed up a bit, so that they should work with a
a40cbfa3 677 couple different versions of expect and dejagnu.
252b5132 678
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679* Symbols' values are now handled internally as expressions, permitting more
680 flexibility in evaluating them in some cases. Some details of relocation
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681 handling have also changed, and simple constant pool management has been
682 added, to make the Alpha port easier.
252b5132 683
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684* New option "--statistics" for printing out program run times. This is
685 intended to be used with the gcc "-Q" option, which prints out times spent in
686 various phases of compilation. (You should be able to get all of them
687 printed out with "gcc -Q -Wa,--statistics", I think.)
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688
689Changes in 2.2:
690
a40cbfa3 691* RS/6000 AIX and MIPS SGI Irix 5 support has been added.
252b5132 692
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693* Configurations that are still in development (and therefore are convenient to
694 have listed in configure.in) still get rejected without a minor change to
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695 gas/Makefile.in, so people not doing development work shouldn't get the
696 impression that support for such configurations is actually believed to be
697 reliable.
252b5132 698
fa94de6b 699* The program name (usually "as") is printed when a fatal error message is
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700 displayed. This should prevent some confusion about the source of occasional
701 messages about "internal errors".
252b5132 702
fa94de6b 703* ELF support is falling into place. Support for the 386 should be working.
a40cbfa3 704 Support for SPARC Solaris is in. HPPA support from Utah is being integrated.
252b5132 705
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706* Symbol values are maintained as expressions instead of being immediately
707 boiled down to add-symbol, sub-symbol, and constant. This permits slightly
708 more complex calculations involving symbols whose values are not alreadey
709 known.
252b5132 710
a40cbfa3 711* DBX-style debugging info ("stabs") is now supported for COFF formats.
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712 If any stabs directives are seen in the source, GAS will create two new
713 sections: a ".stab" and a ".stabstr" section. The format of the .stab
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714 section is nearly identical to the a.out symbol format, and .stabstr is
715 its string table. For this to be useful, you must have configured GCC
716 to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
717 that can use the stab sections (4.11 or later).
252b5132 718
fa94de6b 719* LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
a40cbfa3 720 support is in progress.
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721
722Changes in 2.1:
723
fa94de6b 724* Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
a40cbfa3 725 incorporated, but not well tested yet.
252b5132 726
fa94de6b 727* Altered the opcode table split for m68k; it should require less VM to compile
a40cbfa3 728 with gcc now.
252b5132 729
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730* Some minor adjustments to add (Convergent Technologies') Miniframe support,
731 suggested by Ronald Cole.
252b5132 732
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733* HPPA support (running OSF only, not HPUX) has been contributed by Utah. This
734 includes improved ELF support, which I've started adapting for SPARC Solaris
735 2.x. Integration isn't completely, so it probably won't work.
252b5132 736
a40cbfa3 737* HP9000/300 support, donated by HP, has been merged in.
252b5132 738
a40cbfa3 739* Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support.
252b5132 740
a40cbfa3 741* Better error messages for unsupported configurations (e.g., hppa-hpux).
252b5132 742
a40cbfa3 743* Test suite framework is starting to become reasonable.
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744
745Changes in 2.0:
746
a40cbfa3 747* Mostly bug fixes.
252b5132 748
a40cbfa3 749* Some more merging of BFD and ELF code, but ELF still doesn't work.
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750
751Changes in 1.94:
752
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753* BFD merge is partly done. Adventurous souls may try giving configure the
754 "--with-bfd-assembler" option. Currently, ELF format requires it, a.out
755 format accepts it; SPARC CPU accepts it. It's the default only for OS "elf"
756 or "solaris". (ELF isn't really supported yet. It needs work. I've got
757 some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not
758 fully merged yet.)
252b5132 759
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760* The 68K opcode table has been split in half. It should now compile under gcc
761 without consuming ridiculous amounts of memory.
252b5132 762
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763* A couple data structures have been reduced in size. This should result in
764 saving a little bit of space at runtime.
252b5132 765
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766* Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF
767 code provided ROSE format support, which I haven't merged in yet. (I can
768 make it available, if anyone wants to try it out.) Ralph's code, for BSD
769 4.4, supports a.out format. We don't have ECOFF support in just yet; it's
770 coming.
252b5132 771
a40cbfa3 772* Support for the Hitachi H8/500 has been added.
252b5132 773
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774* VMS host and target support should be working now, thanks chiefly to Eric
775 Youngdale.
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776
777Changes in 1.93.01:
778
a40cbfa3 779* For m68k, support for more processors has been added: 68040, CPU32, 68851.
252b5132 780
a40cbfa3 781* For i386, .align is now power-of-two; was number-of-bytes.
252b5132 782
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783* For m68k, "%" is now accepted before register names. For COFF format, which
784 doesn't use underscore prefixes for C labels, it is required, so variable "a0"
785 can be distinguished from the register.
252b5132 786
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787* Last public release was 1.38. Lots of configuration changes since then, lots
788 of new CPUs and formats, lots of bugs fixed.
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789
790\f
82704155 791Copyright (C) 2012-2019 Free Software Foundation, Inc.
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792
793Copying and distribution of this file, with or without modification,
794are permitted in any medium without royalty provided the copyright
795notice and this notice are preserved.
796
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797Local variables:
798fill-column: 79
799End: