gas/NEWS

   1 -*- text -*-
   2
   3 * Add support for loaction views in DWARF debug line information.
   4
   5 Changes in 2.29:
   6
   7 * Add support for ELF SHF_GNU_MBIND.
   8
   9 * Add support for the WebAssembly file format and wasm32 ELF conversion.
  10
  11 * PowerPC gas now checks that the correct register class is used in
  12   instructions.  For instance, "addi %f4,%cr3,%r31" warns three times
  13   that the registers are invalid.
  14
  15 * Add support for the Texas Instruments PRU processor.
  16
  17 * Support for the ARMv8-R architecture and Cortex-R52 processor has been
  18   added to the ARM port.
  19
  20 Changes in 2.28:
  21
  22 * Add support for the RISC-V architecture.
  23
  24 * Add support for the ARM Cortex-M23 and Cortex-M33 processors.
  25
  26 Changes in 2.27:
  27
  28 * Default to --enable-compressed-debug-sections=gas for Linux/x86 targets.
  29
  30 * Add --no-pad-sections to stop the assembler from padding the end of output
  31   sections up to their alignment boundary.
  32
  33 * Support for the ARMv8-M architecture has been added to the ARM port.  Support
  34   for the ARMv8-M Security and DSP Extensions has also been added to the ARM
  35   port.
  36
  37 * ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and
  38   .extCoreRegister pseudo-ops that allow an user to define custom
  39   instructions, conditional codes, auxiliary and core registers.
  40
  41 * Add a configure option --enable-elf-stt-common to decide whether ELF
  42   assembler should generate common symbols with the STT_COMMON type by
  43   default.  Default to no.
  44
  45 * New command line option --elf-stt-common= for ELF targets to control
  46   whether to generate common symbols with the STT_COMMON type.
  47
  48 * Add ability to set section flags and types via numeric values for ELF
  49   based targets.
  50
  51 * Add a configure option --enable-x86-relax-relocations to decide whether
  52   x86 assembler should generate relax relocations by default.  Default to
  53   yes, except for x86 Solaris targets older than Solaris 12.
  54
  55 * New command line option -mrelax-relocations= for x86 target to control
  56   whether to generate relax relocations.
  57
  58 * New command line option -mfence-as-lock-add=yes for x86 target to encode
  59   lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)".
  60
  61 * Add assembly-time relaxation option for ARC cpus.
  62
  63 * Add --with-cpu=TYPE configure option for ARC gas.  This allows the default
  64   cpu type to be adjusted at configure time.
  65
  66 Changes in 2.26:
  67
  68 * Add a configure option --enable-compressed-debug-sections={all,gas} to
  69   decide whether DWARF debug sections should be compressed by default.
  70
  71 * Add support for the ARC EM/HS, and ARC600/700 architectures.  Remove
  72   assembler support for Argonaut RISC architectures.
  73
  74 * Symbol and label names can now be enclosed in double quotes (") which allows
  75   them to contain characters that are not part of valid symbol names in high
  76   level languages.
  77
  78 * Added the correctly spelled -march=armv6kz, for ARMv6KZ support.  The
  79   previous spelling, -march=armv6zk, is still accepted.
  80
  81 * Support for the ARMv8.1 architecture has been added to the Aarch64 port.
  82   Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture
  83   extensions has also been added to the Aarch64 port.
  84
  85 * Support for the ARMv8.1 architecture has been added to the ARM port.  Support
  86   for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also
  87   been added to the ARM port.
  88
  89 * Extend --compress-debug-sections option to support
  90   --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
  91   targets.
  92
  93 * --compress-debug-sections is turned on for Linux/x86 by default.
  94
  95 Changes in 2.25:
  96
  97 * Add support for the AVR Tiny microcontrollers.
  98
  99 * Replace support for openrisc and or32 with support for or1k.
 100
 101 * Enhanced the ARM port to accept the assembler output from the CodeComposer
 102   Studio tool.  Support is enabled via the new command line option -mccs.
 103
 104 * Add support for the Andes NDS32.
 105
 106 Changes in 2.24:
 107
 108 * Add support for the Texas Instruments MSP430X processor.
 109
 110 * Add -gdwarf-sections command line option to enable per-code-section
 111   generation of DWARF .debug_line sections.
 112
 113 * Add support for Altera Nios II.
 114
 115 * Add support for the Imagination Technologies Meta processor.
 116
 117 * Add support for the v850e3v5.
 118
 119 * Remove assembler support for MIPS ECOFF targets.
 120
 121 Changes in 2.23:
 122
 123 * Add support for the 64-bit ARM architecture: AArch64.
 124
 125 * Add support for S12X processor.
 126
 127 * Add support for the VLE extension to the PowerPC architecture.
 128
 129 * Add support for the Freescale XGATE architecture.
 130
 131 * Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock
 132   directives.  These are currently available only for x86 and ARM targets.
 133
 134 * Add support for the Renesas RL78 architecture.
 135
 136 * Add support for the Adapteva EPIPHANY architecture.
 137
 138 * For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax.
 139
 140 Changes in 2.22:
 141
 142 * Add support for the Tilera TILEPro and TILE-Gx architectures.
 143
 144 Changes in 2.21:
 145
 146 * Gas no longer requires doubling of ampersands in macros.
 147
 148 * Add support for the TMS320C6000 (TI C6X) processor family.
 149
 150 * GAS now understands an extended syntax in the .section directive flags
 151   for COFF targets that allows the section's alignment to be specified.  This
 152   feature has also been backported to the 2.20 release series, starting with
 153   2.20.1.
 154
 155 * Add support for the Renesas RX processor.
 156
 157 * New command line option, --compress-debug-sections, which requests
 158   compression of DWARF debug information sections in the relocatable output
 159   file.  Compressed debug sections are supported by readelf, objdump, and
 160   gold, but not currently by Gnu ld.
 161
 162 Changes in 2.20:
 163
 164 * Added support for v850e2 and v850e2v3.
 165
 166 * GNU/Linux targets now supports "gnu_unique_object" as a value in the .type
 167   pseudo op.  It marks the symbol as being globally unique in the entire
 168   process.
 169
 170 * ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified
 171   in binary rather than text.
 172
 173 * Add support for common symbol alignment to PE formats.
 174
 175 * Add support for the new discriminator column in the DWARF line table,
 176   with a discriminator operand for the .loc directive.
 177
 178 * Add support for Sunplus score architecture.
 179
 180 * The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to
 181   indicate that if the symbol is the target of a relocation, its value should
 182   not be use.  Instead the function should be invoked and its result used as
 183   the value.
 184
 185 * Add support for Lattice Mico32 (lm32) architecture.
 186
 187 * Add support for Xilinx MicroBlaze architecture.
 188
 189 Changes in 2.19:
 190
 191 * New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind
 192   tables without runtime relocation.
 193
 194 * New command line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which
 195   adds compatibility with H'00 style hex constants.
 196
 197 * New command line option, -msse-check=[none|error|warning], for x86
 198   targets.
 199
 200 * New sub-option added to the assembler's -a command line switch to
 201   generate a listing output.  The 'g' sub-option will insert into the listing
 202   various information about the assembly, such as assembler version, the
 203   command line options used, and a time stamp.
 204
 205 * New command line option -msse2avx for x86 target to encode SSE
 206   instructions with VEX prefix.
 207
 208 * Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target.
 209
 210 * New command line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
 211   -mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg,
 212   -mnaked-reg and -mold-gcc, for x86 targets.
 213
 214 * Support for generating wide character strings has been added via the new
 215   pseudo ops: .string16, .string32 and .string64.
 216
 217 * Support for SSE5 has been added to the i386 port.
 218
 219 Changes in 2.18:
 220
 221 * The GAS sources are now released under the GPLv3.
 222
 223 * Support for the National Semiconductor CR16 target has been added.
 224
 225 * Added gas .reloc pseudo.  This is a low-level interface for creating
 226   relocations.
 227
 228 * Add support for x86_64 PE+ target.
 229
 230 * Add support for Score target.
 231
 232 Changes in 2.17:
 233
 234 * Support for the Infineon XC16X has been added by KPIT Cummins Infosystems.
 235
 236 * Support for ms2 architecture has been added.
 237
 238 * Support for the Z80 processor family has been added.
 239
 240 * Add support for the "@<file>" syntax to the command line, so that extra
 241   switches can be read from <file>.
 242
 243 * The SH target supports a new command line switch --enable-reg-prefix which,
 244   if enabled, will allow register names to be optionally prefixed with a $
 245   character.  This allows register names to be distinguished from label names.
 246
 247 * Macros with a variable number of arguments are now supported. See the
 248   documentation for how this works.
 249
 250 * Added --reduce-memory-overheads switch to reduce the size of the hash
 251   tables used, at the expense of longer assembly times, and
 252   --hash-size=<NUMBER> to set the size of the hash tables used by gas.
 253
 254 * Macro names and macro parameter names can now be any identifier that would
 255   also be legal as a symbol elsewhere. For macro parameter names, this is
 256   known to cause problems in certain sources when the respective target uses
 257   characters inconsistently, and thus macro parameter references may no longer
 258   be recognized as such (see the documentation for details).
 259
 260 * Support the .f_floating, .d_floating, .g_floating and .h_floating directives
 261   for the VAX target in order to be more compatible with the VAX MACRO
 262   assembler.
 263
 264 * New command line option -mtune=[itanium1|itanium2] for IA64 targets.
 265
 266 Changes in 2.16:
 267
 268 * Redefinition of macros now results in an error.
 269
 270 * New command line option -mhint.b=[ok|warning|error] for IA64 targets.
 271
 272 * New command line option -munwind-check=[warning|error] for IA64
 273   targets.
 274
 275 * The IA64 port now uses automatic dependency violation removal as its default
 276   mode.
 277
 278 * Port to MAXQ processor contributed by HCL Tech.
 279
 280 * Added support for generating unwind tables for ARM ELF targets.
 281
 282 * Add a -g command line option to generate debug information in the target's
 283   preferred debug format.
 284
 285 * Support for the crx-elf target added.
 286
 287 * Support for the sh-symbianelf target added.
 288
 289 * Added a pseudo-op (.secrel32) to generate 32 bit section relative relocations
 290   on pe[i]-i386; required for this target's DWARF 2 support.
 291
 292 * Support for Motorola MCF521x/5249/547x/548x added.
 293
 294 * Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC
 295   instrucitons.
 296
 297 * New command line option -mno-shared for MIPS ELF targets.
 298
 299 * New command line option --alternate and pseudo-ops .altmacro and .noaltmacro
 300   added to enter (and leave) alternate macro syntax mode.
 301
 302 Changes in 2.15:
 303
 304 * The MIPS -membedded-pic option (Embedded-PIC code generation) is
 305   deprecated and will be removed in a future release.
 306
 307 * Added PIC m32r Linux (ELF) and support to M32R assembler.
 308
 309 * Added support for ARM V6.
 310
 311 * Added support for sh4a and variants.
 312
 313 * Support for Renesas M32R2 added.
 314
 315 * Limited support for Mapping Symbols as specified in the ARM ELF
 316   specification has been added to the arm assembler.
 317
 318 * On ARM architectures, added a new gas directive ".unreq" that undoes
 319   definitions created by ".req".
 320
 321 * Support for Motorola ColdFire MCF528x added.
 322
 323 * Added --gstabs+ switch to enable the generation of STABS debug format
 324   information with GNU extensions.
 325
 326 * Added support for MIPS64 Release 2.
 327
 328 * Added support for v850e1.
 329
 330 * Added -n switch for x86 assembler.  By default, x86 GAS replaces
 331   multiple nop instructions used for alignment within code sections
 332   with multi-byte nop instructions such as leal 0(%esi,1),%esi.  This
 333   switch disables the optimization.
 334
 335 * Removed -n option from MIPS assembler.  It was not useful, and confused the
 336   existing -non_shared option.
 337
 338 Changes in 2.14:
 339
 340 * Added support for MIPS32 Release 2.
 341
 342 * Added support for Xtensa architecture.
 343
 344 * Support for Intel's iWMMXt processor (an ARM variant) added.
 345
 346 * An assembler test generator has been contributed and an example file that
 347   uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c).
 348
 349 * Support for SH2E added.
 350
 351 * GASP has now been removed.
 352
 353 * Support for Texas Instruments TMS320C4x and TMS320C3x series of
 354   DSP's contributed by Michael Hayes and Svein E. Seldal.
 355
 356 * Support for the Ubicom IP2xxx microcontroller added.
 357
 358 Changes in 2.13:
 359
 360 * Support for the Fujitsu FRV architecture added by Red Hat. Models for FR400
 361   and FR500 included.
 362
 363 * Support for DLX processor added.
 364
 365 * GASP has now been deprecated and will be removed in a future release.  Use
 366   the macro facilities in GAS instead.
 367
 368 * GASP now correctly parses floating point numbers. Unless the base is
 369   explicitly specified, they are interpreted as decimal numbers regardless of
 370   the currently specified base.
 371
 372 Changes in 2.12:
 373
 374 * Support for Don Knuth's MMIX, by Hans-Peter Nilsson.
 375
 376 * Support for the OpenRISC 32-bit embedded processor by OpenCores.
 377
 378 * The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for
 379   specifying the target instruction set.  The old method of specifying the
 380   target processor has been deprecated, but is still accepted for
 381   compatibility.
 382
 383 * Support for the VFP floating-point instruction set has been added to
 384   the ARM assembler.
 385
 386 * New psuedo op: .incbin to include a set of binary data at a given point
 387   in the assembly.  Contributed by Anders Norlander.
 388
 389 * The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated
 390   but still works for compatability.
 391
 392 * The MIPS assembler no longer issues a warning by default when it
 393   generates a nop instruction from a macro. The new command line option
 394   -n will turn on the warning.
 395
 396 Changes in 2.11:
 397
 398 * Support for PDP-11 and 2.11BSD a.out format, by Lars Brinkhoff.
 399
 400 * x86 gas now supports the full Pentium4 instruction set.
 401
 402 * Support for AMD x86-64 architecture, by Jan Hubicka, SuSE Labs.
 403
 404 * Support for Motorola 68HC11 and 68HC12.
 405
 406 * Support for Texas Instruments TMS320C54x (tic54x).
 407
 408 * Support for IA-64.
 409
 410 * Support for i860, by Jason Eckhardt.
 411
 412 * Support for CRIS (Axis Communications ETRAX series).
 413
 414 * x86 gas has a new .arch pseudo op to specify the target CPU architecture.
 415
 416 * x86 gas -q command line option quietens warnings about register size changes
 417   due to suffix, indirect jmp/call without `*', stand-alone prefixes, and
 418   translating various deprecated floating point instructions.
 419
 420 Changes in 2.10:
 421
 422 * Support for the ARM msr instruction was changed to only allow an immediate
 423   operand when altering the flags field.
 424
 425 * Support for ATMEL AVR.
 426
 427 * Support for IBM 370 ELF.  Somewhat experimental.
 428
 429 * Support for numbers with suffixes.
 430
 431 * Added support for breaking to the end of repeat loops.
 432
 433 * Added support for parallel instruction syntax (DOUBLEBAR_PARALLEL).
 434
 435 * New .elseif pseudo-op added.
 436
 437 * New --fatal-warnings option.
 438
 439 * picoJava architecture support added.
 440
 441 * Motorola MCore 210 processor support added.
 442
 443 * A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386
 444   assembly programs with intel syntax.
 445
 446 * New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code.
 447
 448 * Added -gdwarf2 option to generate DWARF 2 debugging information.
 449
 450 * Full 16-bit mode support for i386.
 451
 452 * Greatly improved instruction operand checking for i386.  This change will
 453   produce errors or warnings on incorrect assembly code that previous versions
 454   of gas accepted.  If you get unexpected messages from code that worked with
 455   older versions of gas, please double check the code before reporting a bug.
 456
 457 * Weak symbol support added for COFF targets.
 458
 459 * Mitsubishi D30V support added.
 460
 461 * Texas Instruments c80 (tms320c80) support added.
 462
 463 * i960 ELF support added.
 464
 465 * ARM ELF support added.
 466
 467 Changes in 2.9:
 468
 469 * Texas Instruments c30 (tms320c30) support added.
 470
 471 * The assembler now optimizes the exception frame information generated by egcs
 472   and gcc 2.8.  The new --traditional-format option disables this optimization.
 473
 474 * Added --gstabs option to generate stabs debugging information.
 475
 476 * The -a option takes a new suboption, m (e.g., -alm) to expand macros in a
 477   listing.
 478
 479 * Added -MD option to print dependencies.
 480
 481 Changes in 2.8:
 482
 483 * BeOS support added.
 484
 485 * MIPS16 support added.
 486
 487 * Motorola ColdFire 5200 support added (configure for m68k and use -m5200).
 488
 489 * Alpha/VMS support added.
 490
 491 * m68k options --base-size-default-16, --base-size-default-32,
 492   --disp-size-default-16, and --disp-size-default-32 added.
 493
 494 * The alignment directives now take an optional third argument, which is the
 495   maximum number of bytes to skip.  If doing the alignment would require
 496   skipping more than the given number of bytes, the alignment is not done at
 497   all.
 498
 499 * The ELF assembler has a new pseudo-op, .symver, used for symbol versioning.
 500
 501 * The -a option takes a new suboption, c (e.g., -alc), to skip false
 502   conditionals in listings.
 503
 504 * Added new pseudo-op, .equiv; it's like .equ, except that it is an error if
 505   the symbol is already defined.
 506
 507 Changes in 2.7:
 508
 509 * The PowerPC assembler now allows the use of symbolic register names (r0,
 510   etc.) if -mregnames is used.  Symbolic names preceded by a '%' (%r0, etc.)
 511   can be used any time.  PowerPC 860 move to/from SPR instructions have been
 512   added.
 513
 514 * Alpha Linux (ELF) support added.
 515
 516 * PowerPC ELF support added.
 517
 518 * m68k Linux (ELF) support added.
 519
 520 * i960 Hx/Jx support added.
 521
 522 * i386/PowerPC gnu-win32 support added.
 523
 524 * SCO ELF support added.  For OpenServer 5 targets (i386-unknown-sco3.2v5) the
 525   default is to build COFF-only support.  To get a set of tools that generate
 526   ELF (they'll understand both COFF and ELF), you must configure with
 527   target=i386-unknown-sco3.2v5elf.
 528
 529 * m88k-motorola-sysv3* support added.
 530
 531 Changes in 2.6:
 532
 533 * Gas now directly supports macros, without requiring GASP.
 534
 535 * Gas now has an MRI assembler compatibility mode.  Use -M or --mri to select
 536   MRI mode.  The pseudo-op ``.mri 1'' will switch into the MRI mode until the
 537   ``.mri 0'' is seen; this can be convenient for inline assembler code.
 538
 539 * Added --defsym SYM=VALUE option.
 540
 541 * Added -mips4 support to MIPS assembler.
 542
 543 * Added PIC support to Solaris and SPARC SunOS 4 assembler.
 544
 545 Changes in 2.4:
 546
 547 * Converted this directory to use an autoconf-generated configure script.
 548
 549 * ARM support, from Richard Earnshaw.
 550
 551 * Updated VMS support, from Pat Rankin, including considerably improved
 552   debugging support.
 553
 554 * Support for the control registers in the 68060.
 555
 556 * Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
 557   provide for possible future gcc changes, for targets where gas provides some
 558   features not available in the native assembler.  If the native assembler is
 559   used, it should become obvious pretty quickly what the problem is.
 560
 561 * Usage message is available with "--help".
 562
 563 * The GNU Assembler Preprocessor (gasp) is included.  (Actually, it was in 2.3
 564   also, but didn't get into the NEWS file.)
 565
 566 * Weak symbol support for a.out.
 567
 568 * A bug in the listing code which could cause an infinite loop has been fixed.
 569   Bugs in listings when generating a COFF object file have also been fixed.
 570
 571 * Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by
 572   Paul Kranenburg.
 573
 574 * Improved Alpha support.  Immediate constants can have a much larger range
 575   now. Support for the 21164 has been contributed by Digital.
 576
 577 * Updated ns32k (pc532-mach, netbsd532) support from Ian Dall.
 578
 579 Changes in 2.3:
 580
 581 * Mach i386 support, by David Mackenzie and Ken Raeburn.
 582
 583 * RS/6000 and PowerPC support by Ian Taylor.
 584
 585 * VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit,
 586   based on mail received from various people.  The `-h#' option should work
 587   again too.
 588
 589 * HP-PA work, by Jeff Law.  Note, for the PA, gas-2.3 has been designed to work
 590   with gdb-4.12 and gcc-2.6.  As gcc-2.6 has not been released yet, a special
 591   version of gcc-2.5.8 has been patched to work with gas-2.3.  You can retrieve
 592   this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
 593   in the "dist" directory.
 594
 595 * Vax support in gas fixed for BSD, so it builds and seems to run a couple
 596   simple tests okay.  I haven't put it through extensive testing.  (GNU make is
 597   currently required for BSD 4.3 builds.)
 598
 599 * Support for the DEC Alpha, running OSF/1 (ECOFF format).  The gas support is
 600   based on code donated by CMU, which used an a.out-based format.  I'm afraid
 601   the alpha-a.out support is pretty badly mangled, and much of it removed;
 602   making it work will require rewriting it as BFD support for the format anyways.
 603
 604 * Irix 5 support.
 605
 606 * The test suites have been fixed up a bit, so that they should work with a
 607   couple different versions of expect and dejagnu.
 608
 609 * Symbols' values are now handled internally as expressions, permitting more
 610   flexibility in evaluating them in some cases.  Some details of relocation
 611   handling have also changed, and simple constant pool management has been
 612   added, to make the Alpha port easier.
 613
 614 * New option "--statistics" for printing out program run times.  This is
 615   intended to be used with the gcc "-Q" option, which prints out times spent in
 616   various phases of compilation.  (You should be able to get all of them
 617   printed out with "gcc -Q -Wa,--statistics", I think.)
 618
 619 Changes in 2.2:
 620
 621 * RS/6000 AIX and MIPS SGI Irix 5 support has been added.
 622
 623 * Configurations that are still in development (and therefore are convenient to
 624   have listed in configure.in) still get rejected without a minor change to
 625   gas/Makefile.in, so people not doing development work shouldn't get the
 626   impression that support for such configurations is actually believed to be
 627   reliable.
 628
 629 * The program name (usually "as") is printed when a fatal error message is
 630   displayed.  This should prevent some confusion about the source of occasional
 631   messages about "internal errors".
 632
 633 * ELF support is falling into place.  Support for the 386 should be working.
 634   Support for SPARC Solaris is in.  HPPA support from Utah is being integrated.
 635
 636 * Symbol values are maintained as expressions instead of being immediately
 637   boiled down to add-symbol, sub-symbol, and constant.  This permits slightly
 638   more complex calculations involving symbols whose values are not alreadey
 639   known.
 640
 641 * DBX-style debugging info ("stabs") is now supported for COFF formats.
 642   If any stabs directives are seen in the source, GAS will create two new
 643   sections: a ".stab" and a ".stabstr" section.  The format of the .stab
 644   section is nearly identical to the a.out symbol format, and .stabstr is
 645   its string table.  For this to be useful, you must have configured GCC
 646   to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
 647   that can use the stab sections (4.11 or later).
 648
 649 * LynxOS, on i386 and m68k platforms, is now supported.  SPARC LynxOS
 650   support is in progress.
 651
 652 Changes in 2.1:
 653
 654 * Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
 655   incorporated, but not well tested yet.
 656
 657 * Altered the opcode table split for m68k; it should require less VM to compile
 658   with gcc now.
 659
 660 * Some minor adjustments to add (Convergent Technologies') Miniframe support,
 661   suggested by Ronald Cole.
 662
 663 * HPPA support (running OSF only, not HPUX) has been contributed by Utah.  This
 664   includes improved ELF support, which I've started adapting for SPARC Solaris
 665   2.x.  Integration isn't completely, so it probably won't work.
 666
 667 * HP9000/300 support, donated by HP, has been merged in.
 668
 669 * Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support.
 670
 671 * Better error messages for unsupported configurations (e.g., hppa-hpux).
 672
 673 * Test suite framework is starting to become reasonable.
 674
 675 Changes in 2.0:
 676
 677 * Mostly bug fixes.
 678
 679 * Some more merging of BFD and ELF code, but ELF still doesn't work.
 680
 681 Changes in 1.94:
 682
 683 * BFD merge is partly done.  Adventurous souls may try giving configure the
 684   "--with-bfd-assembler" option.  Currently, ELF format requires it, a.out
 685   format accepts it; SPARC CPU accepts it.  It's the default only for OS "elf"
 686   or "solaris".  (ELF isn't really supported yet.  It needs work.  I've got
 687   some code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not
 688   fully merged yet.)
 689
 690 * The 68K opcode table has been split in half.  It should now compile under gcc
 691   without consuming ridiculous amounts of memory.
 692
 693 * A couple data structures have been reduced in size.  This should result in
 694   saving a little bit of space at runtime.
 695
 696 * Support for MIPS, from OSF and Ralph Campbell, has been merged in.  The OSF
 697   code provided ROSE format support, which I haven't merged in yet.  (I can
 698   make it available, if anyone wants to try it out.)  Ralph's code, for BSD
 699   4.4, supports a.out format.  We don't have ECOFF support in just yet; it's
 700   coming.
 701
 702 * Support for the Hitachi H8/500 has been added.
 703
 704 * VMS host and target support should be working now, thanks chiefly to Eric
 705   Youngdale.
 706
 707 Changes in 1.93.01:
 708
 709 * For m68k, support for more processors has been added: 68040, CPU32, 68851.
 710
 711 * For i386, .align is now power-of-two; was number-of-bytes.
 712
 713 * For m68k, "%" is now accepted before register names.  For COFF format, which
 714   doesn't use underscore prefixes for C labels, it is required, so variable "a0"
 715   can be distinguished from the register.
 716
 717 * Last public release was 1.38.  Lots of configuration changes since then, lots
 718   of new CPUs and formats, lots of bugs fixed.
 719
 720 \f
 721 Copyright (C) 2012-2017 Free Software Foundation, Inc.
 722
 723 Copying and distribution of this file, with or without modification,
 724 are permitted in any medium without royalty provided the copyright
 725 notice and this notice are preserved.
 726
 727 Local variables:
 728 fill-column: 79
 729 End: