1994-09-24 03:44:17 +08:00
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-*- text -*-
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1996-07-09 05:43:26 +08:00
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Changes since 2.6:
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The PowerPC assembler now allows the use of symbolic register names (r0, etc.)
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if -mregnames is used. Symbolic names preceded by a '%' (%r0, etc.) can be
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used any time. PowerPC 860 move to/from SPR instructions have been added.
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Alpha Linux (ELF) support added.
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PowerPC ELF support added.
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m68k Linux (ELF) support added.
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i960 Hx/Jx support added.
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i386/PowerPC gnu-win32 support added.
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SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the
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default is to build COFF-only support. To get a set of tools that generate ELF
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(they'll understand both COFF and ELF), you must configure with
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target=i386-unknown-sco3.2v5elf.
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m88k-motorola-sysv* support added.
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Add support for macros.
* as.c: Include sb.h and macro.h.
(max_macro_next): New global variable.
(main): Call macro_init.
(macro_expr): New static function.
* as.h (max_macro_nest): Declare.
* read.c (line_label): Rename from mri_line_label. Change all
uses.
(potable): Add exitm, irp, irpc, macro, mexit, rept.
(read_a_source_file): Always clear line_label at the start of a
line, not just when flag_mri or LABELS_WITHOUT_COLONS. Fixup
MRI/LABELS_WITHOUT_COLONS handling. In MRI mode, permit label:
equ val. Set line_label when calling colon. In MRI mode, a
leading '.' does not imply a pseudo-op. Check for macro expansion
before calling md_assemble.
(s_irp): New function.
(get_line_sb): New static function.
(s_macro): New function.
(s_mexit): New function.
(s_rept): New function.
* read.h (line_label): Rename from mri_line_label.
(s_irp, s_rept): Declare.
(s_macro, s_mexit): Declare.
* input-scrub.c: Include sb.h.
(sb_index, from_sb): New static variables.
(macro_nest): New static variable.
(struct input_save): Add sb_index and from_sb fields. Change
next_saved_file field to be struct input_save *.
(next_saved_file): Changed to be struct input_save *.
(input_scrub_push): Change to return type struct input_save *.
Save sb_index and from_sb.
(input_scrub_pop): Change parameter type to struct input_save *.
Restore sb_index and from_sb.
(input_scrub_include_sb): New function.
(input_scrub_next_buffer): Handle reading from from_sb.
(bump_line_counters): Only increment lines if not using from_sb.
* config/tc-m68k.c (opt_table): Add nest.
(opt_nest): New static function.
* gasp.c: Include sb.h and macro.h. Move all sb related functions
and definitions to sb.h and sb.c. Move all macro related
functions and definitions to macro.h and macro.c.
* sb.h, sb.c: New files, extracted from gasp.c.
* macro.h, macro.c: Likewise.
* Makefile.in (OBJS): Add sb.o and macro.o
(GASPOBJS): Define.
(gasp.new): Depend upon $(GASPOBJS). Use $(GASPOBJS) to link.
(TARG_CPU_DEP_m68k): Depend upon subsegs.h.
(gasp.o): Depend upon sb.h and macro.h.
(sb.o): New target.
(macro.o): New target.
(as.o): Depend upon sb.h and macro.h.
(input-scrub.o): Depend upon sb.h.
(read.o): Depend upon sb.h and macro.h.
1995-08-22 02:35:11 +08:00
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Changes since 2.5:
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Gas now directly supports macros, without requiring GASP.
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1996-07-09 05:43:26 +08:00
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Gas now has an MRI assembler compatibility mode. Use -M or --mri to select MRI
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mode. The pseudo-op ``.mri 1'' will switch into the MRI mode until the ``.mri
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0'' is seen; this can be convenient for inline assembler code.
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Added --defsym SYM=VALUE option.
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Add support for macros.
* as.c: Include sb.h and macro.h.
(max_macro_next): New global variable.
(main): Call macro_init.
(macro_expr): New static function.
* as.h (max_macro_nest): Declare.
* read.c (line_label): Rename from mri_line_label. Change all
uses.
(potable): Add exitm, irp, irpc, macro, mexit, rept.
(read_a_source_file): Always clear line_label at the start of a
line, not just when flag_mri or LABELS_WITHOUT_COLONS. Fixup
MRI/LABELS_WITHOUT_COLONS handling. In MRI mode, permit label:
equ val. Set line_label when calling colon. In MRI mode, a
leading '.' does not imply a pseudo-op. Check for macro expansion
before calling md_assemble.
(s_irp): New function.
(get_line_sb): New static function.
(s_macro): New function.
(s_mexit): New function.
(s_rept): New function.
* read.h (line_label): Rename from mri_line_label.
(s_irp, s_rept): Declare.
(s_macro, s_mexit): Declare.
* input-scrub.c: Include sb.h.
(sb_index, from_sb): New static variables.
(macro_nest): New static variable.
(struct input_save): Add sb_index and from_sb fields. Change
next_saved_file field to be struct input_save *.
(next_saved_file): Changed to be struct input_save *.
(input_scrub_push): Change to return type struct input_save *.
Save sb_index and from_sb.
(input_scrub_pop): Change parameter type to struct input_save *.
Restore sb_index and from_sb.
(input_scrub_include_sb): New function.
(input_scrub_next_buffer): Handle reading from from_sb.
(bump_line_counters): Only increment lines if not using from_sb.
* config/tc-m68k.c (opt_table): Add nest.
(opt_nest): New static function.
* gasp.c: Include sb.h and macro.h. Move all sb related functions
and definitions to sb.h and sb.c. Move all macro related
functions and definitions to macro.h and macro.c.
* sb.h, sb.c: New files, extracted from gasp.c.
* macro.h, macro.c: Likewise.
* Makefile.in (OBJS): Add sb.o and macro.o
(GASPOBJS): Define.
(gasp.new): Depend upon $(GASPOBJS). Use $(GASPOBJS) to link.
(TARG_CPU_DEP_m68k): Depend upon subsegs.h.
(gasp.o): Depend upon sb.h and macro.h.
(sb.o): New target.
(macro.o): New target.
(as.o): Depend upon sb.h and macro.h.
(input-scrub.o): Depend upon sb.h.
(read.o): Depend upon sb.h and macro.h.
1995-08-22 02:35:11 +08:00
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Added -mips4 support to MIPS assembler.
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Added PIC support to Solaris and SPARC SunOS 4 assembler.
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1994-09-24 03:44:17 +08:00
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Changes since 2.3:
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Converted this directory to use an autoconf-generated configure script.
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ARM support, from Richard Earnshaw.
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Updated VMS support, from Pat Rankin, including considerably improved debugging
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support.
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Support for the control registers in the 68060.
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Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
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provide for possible future gcc changes, for targets where gas provides some
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features not available in the native assembler. If the native assembler is
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used, it should become obvious pretty quickly what the problem is.
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Usage message is available with "--help".
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Add support for macros.
* as.c: Include sb.h and macro.h.
(max_macro_next): New global variable.
(main): Call macro_init.
(macro_expr): New static function.
* as.h (max_macro_nest): Declare.
* read.c (line_label): Rename from mri_line_label. Change all
uses.
(potable): Add exitm, irp, irpc, macro, mexit, rept.
(read_a_source_file): Always clear line_label at the start of a
line, not just when flag_mri or LABELS_WITHOUT_COLONS. Fixup
MRI/LABELS_WITHOUT_COLONS handling. In MRI mode, permit label:
equ val. Set line_label when calling colon. In MRI mode, a
leading '.' does not imply a pseudo-op. Check for macro expansion
before calling md_assemble.
(s_irp): New function.
(get_line_sb): New static function.
(s_macro): New function.
(s_mexit): New function.
(s_rept): New function.
* read.h (line_label): Rename from mri_line_label.
(s_irp, s_rept): Declare.
(s_macro, s_mexit): Declare.
* input-scrub.c: Include sb.h.
(sb_index, from_sb): New static variables.
(macro_nest): New static variable.
(struct input_save): Add sb_index and from_sb fields. Change
next_saved_file field to be struct input_save *.
(next_saved_file): Changed to be struct input_save *.
(input_scrub_push): Change to return type struct input_save *.
Save sb_index and from_sb.
(input_scrub_pop): Change parameter type to struct input_save *.
Restore sb_index and from_sb.
(input_scrub_include_sb): New function.
(input_scrub_next_buffer): Handle reading from from_sb.
(bump_line_counters): Only increment lines if not using from_sb.
* config/tc-m68k.c (opt_table): Add nest.
(opt_nest): New static function.
* gasp.c: Include sb.h and macro.h. Move all sb related functions
and definitions to sb.h and sb.c. Move all macro related
functions and definitions to macro.h and macro.c.
* sb.h, sb.c: New files, extracted from gasp.c.
* macro.h, macro.c: Likewise.
* Makefile.in (OBJS): Add sb.o and macro.o
(GASPOBJS): Define.
(gasp.new): Depend upon $(GASPOBJS). Use $(GASPOBJS) to link.
(TARG_CPU_DEP_m68k): Depend upon subsegs.h.
(gasp.o): Depend upon sb.h and macro.h.
(sb.o): New target.
(macro.o): New target.
(as.o): Depend upon sb.h and macro.h.
(input-scrub.o): Depend upon sb.h.
(read.o): Depend upon sb.h and macro.h.
1995-08-22 02:35:11 +08:00
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The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
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also, but didn't get into the NEWS file.)
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1994-09-24 03:44:17 +08:00
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Weak symbol support for a.out.
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A bug in the listing code which could cause an infinite loop has been fixed.
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Bugs in listings when generating a COFF object file have also been fixed.
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Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by Paul
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Add support for macros.
* as.c: Include sb.h and macro.h.
(max_macro_next): New global variable.
(main): Call macro_init.
(macro_expr): New static function.
* as.h (max_macro_nest): Declare.
* read.c (line_label): Rename from mri_line_label. Change all
uses.
(potable): Add exitm, irp, irpc, macro, mexit, rept.
(read_a_source_file): Always clear line_label at the start of a
line, not just when flag_mri or LABELS_WITHOUT_COLONS. Fixup
MRI/LABELS_WITHOUT_COLONS handling. In MRI mode, permit label:
equ val. Set line_label when calling colon. In MRI mode, a
leading '.' does not imply a pseudo-op. Check for macro expansion
before calling md_assemble.
(s_irp): New function.
(get_line_sb): New static function.
(s_macro): New function.
(s_mexit): New function.
(s_rept): New function.
* read.h (line_label): Rename from mri_line_label.
(s_irp, s_rept): Declare.
(s_macro, s_mexit): Declare.
* input-scrub.c: Include sb.h.
(sb_index, from_sb): New static variables.
(macro_nest): New static variable.
(struct input_save): Add sb_index and from_sb fields. Change
next_saved_file field to be struct input_save *.
(next_saved_file): Changed to be struct input_save *.
(input_scrub_push): Change to return type struct input_save *.
Save sb_index and from_sb.
(input_scrub_pop): Change parameter type to struct input_save *.
Restore sb_index and from_sb.
(input_scrub_include_sb): New function.
(input_scrub_next_buffer): Handle reading from from_sb.
(bump_line_counters): Only increment lines if not using from_sb.
* config/tc-m68k.c (opt_table): Add nest.
(opt_nest): New static function.
* gasp.c: Include sb.h and macro.h. Move all sb related functions
and definitions to sb.h and sb.c. Move all macro related
functions and definitions to macro.h and macro.c.
* sb.h, sb.c: New files, extracted from gasp.c.
* macro.h, macro.c: Likewise.
* Makefile.in (OBJS): Add sb.o and macro.o
(GASPOBJS): Define.
(gasp.new): Depend upon $(GASPOBJS). Use $(GASPOBJS) to link.
(TARG_CPU_DEP_m68k): Depend upon subsegs.h.
(gasp.o): Depend upon sb.h and macro.h.
(sb.o): New target.
(macro.o): New target.
(as.o): Depend upon sb.h and macro.h.
(input-scrub.o): Depend upon sb.h.
(read.o): Depend upon sb.h and macro.h.
1995-08-22 02:35:11 +08:00
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Kranenburg.
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1994-09-24 03:44:17 +08:00
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Improved Alpha support. Immediate constants can have a much larger range now.
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Add support for macros.
* as.c: Include sb.h and macro.h.
(max_macro_next): New global variable.
(main): Call macro_init.
(macro_expr): New static function.
* as.h (max_macro_nest): Declare.
* read.c (line_label): Rename from mri_line_label. Change all
uses.
(potable): Add exitm, irp, irpc, macro, mexit, rept.
(read_a_source_file): Always clear line_label at the start of a
line, not just when flag_mri or LABELS_WITHOUT_COLONS. Fixup
MRI/LABELS_WITHOUT_COLONS handling. In MRI mode, permit label:
equ val. Set line_label when calling colon. In MRI mode, a
leading '.' does not imply a pseudo-op. Check for macro expansion
before calling md_assemble.
(s_irp): New function.
(get_line_sb): New static function.
(s_macro): New function.
(s_mexit): New function.
(s_rept): New function.
* read.h (line_label): Rename from mri_line_label.
(s_irp, s_rept): Declare.
(s_macro, s_mexit): Declare.
* input-scrub.c: Include sb.h.
(sb_index, from_sb): New static variables.
(macro_nest): New static variable.
(struct input_save): Add sb_index and from_sb fields. Change
next_saved_file field to be struct input_save *.
(next_saved_file): Changed to be struct input_save *.
(input_scrub_push): Change to return type struct input_save *.
Save sb_index and from_sb.
(input_scrub_pop): Change parameter type to struct input_save *.
Restore sb_index and from_sb.
(input_scrub_include_sb): New function.
(input_scrub_next_buffer): Handle reading from from_sb.
(bump_line_counters): Only increment lines if not using from_sb.
* config/tc-m68k.c (opt_table): Add nest.
(opt_nest): New static function.
* gasp.c: Include sb.h and macro.h. Move all sb related functions
and definitions to sb.h and sb.c. Move all macro related
functions and definitions to macro.h and macro.c.
* sb.h, sb.c: New files, extracted from gasp.c.
* macro.h, macro.c: Likewise.
* Makefile.in (OBJS): Add sb.o and macro.o
(GASPOBJS): Define.
(gasp.new): Depend upon $(GASPOBJS). Use $(GASPOBJS) to link.
(TARG_CPU_DEP_m68k): Depend upon subsegs.h.
(gasp.o): Depend upon sb.h and macro.h.
(sb.o): New target.
(macro.o): New target.
(as.o): Depend upon sb.h and macro.h.
(input-scrub.o): Depend upon sb.h.
(read.o): Depend upon sb.h and macro.h.
1995-08-22 02:35:11 +08:00
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Support for the 21164 has been contributed by Digital.
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1994-09-24 03:44:17 +08:00
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Updated ns32k (pc532-mach, netbsd532) support from Ian Dall.
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Changes since 2.2:
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Mach i386 support, by David Mackenzie and Ken Raeburn.
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RS/6000 and PowerPC support by Ian Taylor.
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VMS command scripts (make-gas.com, config-gas.com) have been worked on a bit,
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based on mail received from various people. The `-h#' option should work again
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too.
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HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work
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with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
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version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve
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this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
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in the "dist" directory.
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Vax support in gas fixed for BSD, so it builds and seems to run a couple simple
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tests okay. I haven't put it through extensive testing. (GNU make is
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currently required for BSD 4.3 builds.)
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Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
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based on code donated by CMU, which used an a.out-based format. I'm afraid the
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alpha-a.out support is pretty badly mangled, and much of it removed; making it
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work will require rewriting it as BFD support for the format anyways.
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Irix 5 support.
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The test suites have been fixed up a bit, so that they should work with a
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couple different versions of expect and dejagnu.
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Symbols' values are now handled internally as expressions, permitting more
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flexibility in evaluating them in some cases. Some details of relocation
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handling have also changed, and simple constant pool management has been added,
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to make the Alpha port easier.
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New option "--statistics" for printing out program run times. This is intended
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to be used with the gcc "-Q" option, which prints out times spent in various
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phases of compilation. (You should be able to get all of them printed out with
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"gcc -Q -Wa,--statistics", I think.)
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----------------------------------------------------------------
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Changes since 2.1:
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RS/6000 AIX and MIPS SGI Irix 5 support has been added.
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Configurations that are still in development (and therefore are convenient to
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have listed in configure.in) still get rejected without a minor change to
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gas/Makefile.in, so people not doing development work shouldn't get the
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impression that support for such configurations is actually believed to be
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reliable.
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The program name (usually "as") is printed when a fatal error message is
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displayed. This should prevent some confusion about the source of occasional
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messages about "internal errors".
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ELF support is falling into place. Support for the 386 should be working.
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Support for SPARC Solaris is in. HPPA support from Utah is being integrated.
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Symbol values are maintained as expressions instead of being immediately boiled
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down to add-symbol, sub-symbol, and constant. This permits slightly more
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complex calculations involving symbols whose values are not alreadey known.
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DBX-style debugging info ("stabs") is now supported for COFF formats.
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If any stabs directives are seen in the source, GAS will create two new
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sections: a ".stab" and a ".stabstr" section. The format of the .stab
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section is nearly identical to the a.out symbol format, and .stabstr is
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its string table. For this to be useful, you must have configured GCC
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to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
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that can use the stab sections (4.11 or later).
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LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
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support is in progress.
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----------------------------------------------------------------
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Changes for 2.1:
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Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
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incorporated, but not well tested yet.
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Altered the opcode table split for m68k; it should require less VM to compile
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with gcc now.
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Some minor adjustments to add (Convergent Technologies') Miniframe support,
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suggested by Ronald Cole.
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HPPA support (running OSF only, not HPUX) has been contributed by Utah. This
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includes improved ELF support, which I've started adapting for SPARC Solaris
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2.x. Integration isn't completely, so it probably won't work.
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HP9000/300 support, donated by HP, has been merged in.
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Ian Taylor has finished the MIPS ECOFF (Ultrix, Irix) support.
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Better error messages for unsupported configurations (e.g., hppa-hpux).
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Test suite framework is starting to become reasonable.
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----------------------------------------------------------------
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Changes for 2.0:
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Mostly bug fixes.
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Some more merging of BFD and ELF code, but ELF still doesn't work.
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|
----------------------------------------------------------------
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Changes for 1.94:
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BFD merge is partly done. Adventurous souls may try giving configure the
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|
"--with-bfd-assembler" option. Currently, ELF format requires it, a.out format
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accepts it; SPARC CPU accepts it. It's the default only for OS "elf" or
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|
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"solaris". (ELF isn't really supported yet. It needs work. I've got some
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|
|
code from Utah for HP-PA ELF, and from DG for m88k ELF, but they're not fully
|
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|
|
merged yet.)
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The 68K opcode table has been split in half. It should now compile under gcc
|
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|
|
without consuming ridiculous amounts of memory.
|
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|
A couple data structures have been reduced in size. This should result in
|
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|
|
saving a little bit of space at runtime.
|
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|
Support for MIPS, from OSF and Ralph Campbell, has been merged in. The OSF
|
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|
|
code provided ROSE format support, which I haven't merged in yet. (I can make
|
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|
|
|
|
it available, if anyone wants to try it out.) Ralph's code, for BSD 4.4,
|
|
|
|
|
|
supports a.out format. We don't have ECOFF support in just yet; it's coming.
|
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|
|
Support for the Hitachi H8/500 has been added.
|
|
|
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|
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|
|
VMS host and target support should be working now, thanks chiefly to Eric
|
|
|
|
|
|
Youngdale.
|
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|
|
|
|
|
|
|
|
|
----------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
Changes for 1.93.01:
|
|
|
|
|
|
|
|
|
|
|
|
For m68k, support for more processors has been added: 68040, CPU32, 68851.
|
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|
|
|
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|
|
For i386, .align is now power-of-two; was number-of-bytes.
|
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|
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|
|
For m68k, "%" is now accepted before register names. For COFF format, which
|
|
|
|
|
|
doesn't use underscore prefixes for C labels, it is required, so variable "a0"
|
|
|
|
|
|
can be distinguished from the register.
|
|
|
|
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|
|
|
|
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|
|
Last public release was 1.38. Lots of configuration changes since then, lots
|
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|
|
|
|
of new CPUs and formats, lots of bugs fixed.
|
|
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|
|
Local variables:
|
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|
|
fill-column: 79
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|
End:
|
