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