gas/NEWS

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