-*- text -*-
+
+* Add a configure option --enable-x86-relax-relocations to decide whether
+ x86 assembler should generate relax relocations by default. Default to
+ yes, except for x86 Solaris targets older than Solaris 12.
+
+* New command line option -mrelax-relocations= for x86 target to control
+ whether to generate relax relocations.
+
+* New command line option -mfence-as-lock-add=yes for x86 target to encode
+ lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)".
+
+* Add assembly-time relaxation option for ARC cpus.
+
+Changes in 2.26:
+
+* Add a configure option --enable-compressed-debug-sections={all,gas} to
+ decide whether DWARF debug sections should be compressed by default.
+
+* Add support for the ARC EM/HS, and ARC600/700 architectures. Remove
+ assembler support for Argonaut RISC architectures.
+
+* Symbol and label names can now be enclosed in double quotes (") which allows
+ them to contain characters that are not part of valid symbol names in high
+ level languages.
+
+* Added the correctly spelled -march=armv6kz, for ARMv6KZ support. The
+ previous spelling, -march=armv6zk, is still accepted.
+
+* Support for the ARMv8.1 architecture has been added to the Aarch64 port.
+ Support for the individual ARMv8.1 Adv.SIMD, LOR and PAN architecture
+ extensions has also been added to the Aarch64 port.
+
+* Support for the ARMv8.1 architecture has been added to the ARM port. Support
+ for the individual ARMv8.1 Adv.SIMD and PAN architecture extensions has also
+ been added to the ARM port.
+
+* Extend --compress-debug-sections option to support
+ --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
+ targets.
+
+* --compress-debug-sections is turned on for Linux/x86 by default.
+
+Changes in 2.25:
+
+* Add support for the AVR Tiny microcontrollers.
+
+* Replace support for openrisc and or32 with support for or1k.
+
+* Enhanced the ARM port to accept the assembler output from the CodeComposer
+ Studio tool. Support is enabled via the new command line option -mccs.
+
+* Add support for the Andes NDS32.
+
+Changes in 2.24:
+
+* Add support for the Texas Instruments MSP430X processor.
+
+* Add -gdwarf-sections command line option to enable per-code-section
+ generation of DWARF .debug_line sections.
+
+* Add support for Altera Nios II.
+
+* Add support for the Imagination Technologies Meta processor.
+
+* Add support for the v850e3v5.
+
+* Remove assembler support for MIPS ECOFF targets.
+
+Changes in 2.23:
+
+* Add support for the 64-bit ARM architecture: AArch64.
+
+* Add support for S12X processor.
+
+* Add support for the VLE extension to the PowerPC architecture.
+
+* Add support for the Freescale XGATE architecture.
+
+* Add support for .bundle_align_mode, .bundle_lock, and .bundle_unlock
+ directives. These are currently available only for x86 and ARM targets.
+
+* Add support for the Renesas RL78 architecture.
+
+* Add support for the Adapteva EPIPHANY architecture.
+
+* For x86, allow 'rep bsf', 'rep bsr', and 'rep ret' syntax.
+
+Changes in 2.22:
+
+* Add support for the Tilera TILEPro and TILE-Gx architectures.
+
+Changes in 2.21:
+
+* Gas no longer requires doubling of ampersands in macros.
+
+* Add support for the TMS320C6000 (TI C6X) processor family.
+
+* GAS now understands an extended syntax in the .section directive flags
+ for COFF targets that allows the section's alignment to be specified. This
+ feature has also been backported to the 2.20 release series, starting with
+ 2.20.1.
+
+* Add support for the Renesas RX processor.
+
+* New command line option, --compress-debug-sections, which requests
+ compression of DWARF debug information sections in the relocatable output
+ file. Compressed debug sections are supported by readelf, objdump, and
+ gold, but not currently by Gnu ld.
+
+Changes in 2.20:
+
+* Added support for v850e2 and v850e2v3.
+
+* GNU/Linux targets now supports "gnu_unique_object" as a value in the .type
+ pseudo op. It marks the symbol as being globally unique in the entire
+ process.
+
+* ARM assembler now supports .inst[.nw] pseudo-ops to insert opcodes specified
+ in binary rather than text.
+
+* Add support for common symbol alignment to PE formats.
+
+* Add support for the new discriminator column in the DWARF line table,
+ with a discriminator operand for the .loc directive.
+
+* Add support for Sunplus score architecture.
+
+* The .type pseudo-op now accepts a type of STT_GNU_IFUNC which can be used to
+ indicate that if the symbol is the target of a relocation, its value should
+ not be use. Instead the function should be invoked and its result used as
+ the value.
+
+* Add support for Lattice Mico32 (lm32) architecture.
+
+* Add support for Xilinx MicroBlaze architecture.
+
+Changes in 2.19:
+
+* New pseudo op .cfi_val_encoded_addr, to record constant addresses in unwind
+ tables without runtime relocation.
+
+* New command line option, -h-tick-hex, for sh, m32c, and h8/300 targets, which
+ adds compatibility with H'00 style hex constants.
+
+* New command line option, -msse-check=[none|error|warning], for x86
+ targets.
+
* New sub-option added to the assembler's -a command line switch to
generate a listing output. The 'g' sub-option will insert into the listing
various information about the assembly, such as assembler version, the
* New command line option -msse2avx for x86 target to encode SSE
instructions with VEX prefix.
-* Add Intel XSAVE, AES, PCLMUL, AVX/FMA support for x86 target.
+* Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target.
* New command line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
-mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg,
* The SH target supports a new command line switch --enable-reg-prefix which,
if enabled, will allow register names to be optionally prefixed with a $
character. This allows register names to be distinguished from label names.
-
+
* Macros with a variable number of arguments are now supported. See the
documentation for how this works.
known to cause problems in certain sources when the respective target uses
characters inconsistently, and thus macro parameter references may no longer
be recognized as such (see the documentation for details).
-
+
* Support the .f_floating, .d_floating, .g_floating and .h_floating directives
for the VAX target in order to be more compatible with the VAX MACRO
assembler.
* Added --gstabs+ switch to enable the generation of STABS debug format
information with GNU extensions.
-
+
* Added support for MIPS64 Release 2.
* Added support for v850e1.
* An assembler test generator has been contributed and an example file that
uses it (gas/testsuite/gas/all/test-gen.c and test-exmaple.c).
-
+
* Support for SH2E added.
* GASP has now been removed.
* Support for Texas Instruments TMS320C4x and TMS320C3x series of
DSP's contributed by Michael Hayes and Svein E. Seldal.
-
+
* Support for the Ubicom IP2xxx microcontroller added.
Changes in 2.13:
* Support for the OpenRISC 32-bit embedded processor by OpenCores.
-* The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for
- specifying the target instruction set. The old method of specifying the
+* The ARM assembler now accepts -march=..., -mcpu=... and -mfpu=... for
+ specifying the target instruction set. The old method of specifying the
target processor has been deprecated, but is still accepted for
compatibility.
* The MIPS assembler now accepts -march/-mtune. -mcpu has been deprecated
but still works for compatability.
-* The MIPS assembler no longer issues a warning by default when it
+* The MIPS assembler no longer issues a warning by default when it
generates a nop instruction from a macro. The new command line option
-n will turn on the warning.
* Motorola MCore 210 processor support added.
-* A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386
+* A new pseudo-op .intel_syntax has been implemented to allow gas to parse i386
assembly programs with intel syntax.
* New pseudo-ops .func,.endfunc to aid in debugging user-written assembler code.
* Full 16-bit mode support for i386.
-* Greatly improved instruction operand checking for i386. This change will
+* Greatly improved instruction operand checking for i386. This change will
produce errors or warnings on incorrect assembly code that previous versions
of gas accepted. If you get unexpected messages from code that worked with
older versions of gas, please double check the code before reporting a bug.
* Texas Instruments c30 (tms320c30) support added.
-* The assembler now optimizes the exception frame information generated by egcs
+* The assembler now optimizes the exception frame information generated by egcs
and gcc 2.8. The new --traditional-format option disables this optimization.
* Added --gstabs option to generate stabs debugging information.
-* The -a option takes a new suboption, m (e.g., -alm) to expand macros in a
+* The -a option takes a new suboption, m (e.g., -alm) to expand macros in a
listing.
* Added -MD option to print dependencies.
* SCO ELF support added. For OpenServer 5 targets (i386-unknown-sco3.2v5) the
default is to build COFF-only support. To get a set of tools that generate
- ELF (they'll understand both COFF and ELF), you must configure with
+ ELF (they'll understand both COFF and ELF), you must configure with
target=i386-unknown-sco3.2v5elf.
* m88k-motorola-sysv3* support added.
* Support for the control registers in the 68060.
* Handles (ignores) a new directive ".this_GCC_requires_the_GNU_assembler", to
- provide for possible future gcc changes, for targets where gas provides some
- features not available in the native assembler. If the native assembler is
+ provide for possible future gcc changes, for targets where gas provides some
+ features not available in the native assembler. If the native assembler is
used, it should become obvious pretty quickly what the problem is.
* Usage message is available with "--help".
-* The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
+* The GNU Assembler Preprocessor (gasp) is included. (Actually, it was in 2.3
also, but didn't get into the NEWS file.)
* Weak symbol support for a.out.
-* A bug in the listing code which could cause an infinite loop has been fixed.
+* A bug in the listing code which could cause an infinite loop has been fixed.
Bugs in listings when generating a COFF object file have also been fixed.
* Initial i386-svr4 PIC implementation from Eric Youngdale, based on code by
again too.
* HP-PA work, by Jeff Law. Note, for the PA, gas-2.3 has been designed to work
- with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
+ with gdb-4.12 and gcc-2.6. As gcc-2.6 has not been released yet, a special
version of gcc-2.5.8 has been patched to work with gas-2.3. You can retrieve
this special version of gcc-2.5.8 via anonymous ftp from jaguar.cs.utah.edu
in the "dist" directory.
simple tests okay. I haven't put it through extensive testing. (GNU make is
currently required for BSD 4.3 builds.)
-* Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
+* Support for the DEC Alpha, running OSF/1 (ECOFF format). The gas support is
based on code donated by CMU, which used an a.out-based format. I'm afraid
the alpha-a.out support is pretty badly mangled, and much of it removed;
making it work will require rewriting it as BFD support for the format anyways.
* Irix 5 support.
-* The test suites have been fixed up a bit, so that they should work with a
+* The test suites have been fixed up a bit, so that they should work with a
couple different versions of expect and dejagnu.
-* Symbols' values are now handled internally as expressions, permitting more
- flexibility in evaluating them in some cases. Some details of relocation
+* Symbols' values are now handled internally as expressions, permitting more
+ flexibility in evaluating them in some cases. Some details of relocation
handling have also changed, and simple constant pool management has been
added, to make the Alpha port easier.
* RS/6000 AIX and MIPS SGI Irix 5 support has been added.
-* Configurations that are still in development (and therefore are convenient to
- have listed in configure.in) still get rejected without a minor change to
+* Configurations that are still in development (and therefore are convenient to
+ have listed in configure.in) still get rejected without a minor change to
gas/Makefile.in, so people not doing development work shouldn't get the
impression that support for such configurations is actually believed to be
reliable.
-* The program name (usually "as") is printed when a fatal error message is
+* The program name (usually "as") is printed when a fatal error message is
displayed. This should prevent some confusion about the source of occasional
messages about "internal errors".
-* ELF support is falling into place. Support for the 386 should be working.
+* ELF support is falling into place. Support for the 386 should be working.
Support for SPARC Solaris is in. HPPA support from Utah is being integrated.
* Symbol values are maintained as expressions instead of being immediately
known.
* DBX-style debugging info ("stabs") is now supported for COFF formats.
- If any stabs directives are seen in the source, GAS will create two new
- sections: a ".stab" and a ".stabstr" section. The format of the .stab
+ If any stabs directives are seen in the source, GAS will create two new
+ sections: a ".stab" and a ".stabstr" section. The format of the .stab
section is nearly identical to the a.out symbol format, and .stabstr is
its string table. For this to be useful, you must have configured GCC
to generate stabs (by defining DBX_DEBUGGING_INFO), and must have a GDB
that can use the stab sections (4.11 or later).
-* LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
+* LynxOS, on i386 and m68k platforms, is now supported. SPARC LynxOS
support is in progress.
Changes in 2.1:
-* Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
+* Several small fixes for i386-aix (PS/2) support from Minh Tran-Le have been
incorporated, but not well tested yet.
-* Altered the opcode table split for m68k; it should require less VM to compile
+* Altered the opcode table split for m68k; it should require less VM to compile
with gcc now.
* Some minor adjustments to add (Convergent Technologies') Miniframe support,
of new CPUs and formats, lots of bugs fixed.
\f
+Copyright (C) 2012-2016 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
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projects / deliverable / binutils-gdb.git / blobdiff