-*- text -*-
+* Extend .symver directive to update visibility of the original symbol
+ and assign one original symbol to different versioned symbols.
+
+* Add support for Intel SERIALIZE and TSXLDTRK instructions.
+
+* Add -mlfence-after-load=, -mlfence-before-indirect-branch= and
+ -mlfence-before-ret= options to x86 assembler to help mitigate
+ CVE-2020-0551.
+
+* Add --gdwarf-5 option to the assembler to generate DWARF 5 debug output
+ (if such output is being generated). Added the ability to generate
+ version 5 .debug_line sections.
+
+* Add -mbig-obj support to i386 MingW targets.
+
+Changes in 2.34:
+
+* Add -malign-branch-boundary=NUM, -malign-branch=TYPE[+TYPE...],
+ -malign-branch-prefix-size=NUM and -mbranches-within-32B-boundaries
+ options to x86 assembler to align branches within a fixed boundary
+ with segment prefixes or NOPs.
+
+* Add support for Zilog eZ80 and Zilog Z180 CPUs.
+
+* Add support for z80-elf target.
+
+* Add support for relocation of each byte or word of multibyte value to Z80
+ targets (just use right shift to 0, 8, 16, or 24 bits or AND operation
+ with 0xff/0xffff mask): ld a, label >> 16 \ ld hl, label & 0xffff
+
+* Add SDCC support for Z80 targets.
+
+Changes in 2.33:
+
+* Add support for the Arm Scalable Vector Extension version 2 (SVE2)
+ instructions.
+
+* Add support for the Arm Transactional Memory Extension (TME)
+ instructions.
+
+* Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
+ instructions.
+
+* For MIPS, Add -m[no-]fix-loongson3-llsc option to fix (or not) Loongson3
+ LLSC Errata. Add a --enable-mips-fix-loongson3-llsc=[yes|no] configure
+ time option to set the default behavior. Set the default if the configure
+ option is not used to "no".
+
+* Add support for the Arm Cortex-A76AE, Cortex-A77 and Cortex-M35P
+ processors.
+
+* Add support for the AArch64 Cortex-A34, Cortex-A65, Cortex-A65AE,
+ Cortex-A76AE, and Cortex-A77 processors.
+
+* Add .float16 directive for both Arm and AArch64 to allow encoding of 16-bit
+ floating point literals. Add .float16_format directive and
+ -mfp16-format=[ieee|alternative] option for Arm to control the format of the
+ encoding.
+
+* Add --gdwarf-cie-version command line flag. This allows control over which
+ version of DWARF CIE the assembler creates.
+
+Changes in 2.32:
+
+* Add -mvexwig=[0|1] option to x86 assembler to control encoding of
+ VEX.W-ignored (WIG) VEX instructions.
+
+* Add -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property
+ notes. Add a --enable-x86-used-note configure time option to set the
+ default behavior. Set the default if the configure option is not used
+ to "no".
+
+* Add support for the MIPS Loongson EXTensions R2 (EXT2) instructions.
+
+* Add support for the MIPS Loongson EXTensions (EXT) instructions.
+
+* Add support for the MIPS Loongson Content Address Memory (CAM) ASE.
+
+* Add support for the C-SKY processor series.
+
+* Add support for the MIPS Loongson MultiMedia extensions Instructions (MMI)
+ ASE.
+
+Changes in 2.31:
+
+* The ADR and ADRL pseudo-instructions supported by the ARM assembler
+ now only set the bottom bit of the address of thumb function symbols
+ if the -mthumb-interwork command line option is active.
+
+* Add support for the MIPS Global INValidate (GINV) ASE.
+
+* Add support for the MIPS Cyclic Redudancy Check (CRC) ASE.
+
+* Add support for the Freescale S12Z architecture.
+
+* Add --generate-missing-build-notes=[yes|no] option to create (or not) GNU
+ Build Attribute notes if none are present in the input sources. Add a
+ --enable-generate-build-notes=[yes|no] configure time option to set the
+ default behaviour. Set the default if the configure option is not used
+ to "no".
+
+* Remove -mold-gcc command-line option for x86 targets.
+
+* Add -O[2|s] command-line options to x86 assembler to enable alternate
+ shorter instruction encoding.
+
+* Add support for .nops directive. It is currently supported only for
+ x86 targets.
+
+Changes in 2.30:
+
+* Add support for loaction views in DWARF debug line information.
+
+Changes in 2.29:
+
+* Add support for ELF SHF_GNU_MBIND.
+
+* Add support for the WebAssembly file format and wasm32 ELF conversion.
+
+* PowerPC gas now checks that the correct register class is used in
+ instructions. For instance, "addi %f4,%cr3,%r31" warns three times
+ that the registers are invalid.
+
+* Add support for the Texas Instruments PRU processor.
+
+* Support for the ARMv8-R architecture and Cortex-R52 processor has been
+ added to the ARM port.
+
+Changes in 2.28:
+
+* Add support for the RISC-V architecture.
+
+* Add support for the ARM Cortex-M23 and Cortex-M33 processors.
+
+Changes in 2.27:
+
+* Default to --enable-compressed-debug-sections=gas for Linux/x86 targets.
+
+* Add --no-pad-sections to stop the assembler from padding the end of output
+ sections up to their alignment boundary.
+
+* Support for the ARMv8-M architecture has been added to the ARM port. Support
+ for the ARMv8-M Security and DSP Extensions has also been added to the ARM
+ port.
+
+* ARC backend accepts .extInstruction, .extCondCode, .extAuxRegister, and
+ .extCoreRegister pseudo-ops that allow an user to define custom
+ instructions, conditional codes, auxiliary and core registers.
+
+* Add a configure option --enable-elf-stt-common to decide whether ELF
+ assembler should generate common symbols with the STT_COMMON type by
+ default. Default to no.
+
+* New command-line option --elf-stt-common= for ELF targets to control
+ whether to generate common symbols with the STT_COMMON type.
+
+* Add ability to set section flags and types via numeric values for ELF
+ based targets.
+
+* 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.
+
+* Add --with-cpu=TYPE configure option for ARC gas. This allows the default
+ cpu type to be adjusted at configure time.
+
+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
+* 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 v850e3v5.
+* Remove assembler support for MIPS ECOFF targets.
+
Changes in 2.23:
* Add support for the 64-bit ARM architecture: AArch64.
* Add support for the Renesas RX processor.
-* New command line option, --compress-debug-sections, which requests
+* 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.
* 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
+* 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
+* 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
+* 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
- command line options used, and a time stamp.
+ command-line options used, and a time stamp.
-* New command line option -msse2avx for x86 target to encode SSE
+* New command-line option -msse2avx for x86 target to encode SSE
instructions with VEX prefix.
* Add Intel XSAVE, EPT, MOVBE, AES, PCLMUL, AVX/FMA support for x86 target.
-* New command line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
+* New command-line options, -march=CPU[,+EXTENSION...], -mtune=CPU,
-mmnemonic=[att|intel], -msyntax=[att|intel], -mindex-reg,
-mnaked-reg and -mold-gcc, for x86 targets.
* Add support for the "@<file>" syntax to the command line, so that extra
switches can be read from <file>.
-* The SH target supports a new command line switch --enable-reg-prefix which,
+* 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.
for the VAX target in order to be more compatible with the VAX MACRO
assembler.
-* New command line option -mtune=[itanium1|itanium2] for IA64 targets.
+* New command-line option -mtune=[itanium1|itanium2] for IA64 targets.
Changes in 2.16:
* Redefinition of macros now results in an error.
-* New command line option -mhint.b=[ok|warning|error] for IA64 targets.
+* New command-line option -mhint.b=[ok|warning|error] for IA64 targets.
-* New command line option -munwind-check=[warning|error] for IA64
+* New command-line option -munwind-check=[warning|error] for IA64
targets.
* The IA64 port now uses automatic dependency violation removal as its default
* Added support for generating unwind tables for ARM ELF targets.
-* Add a -g command line option to generate debug information in the target's
+* Add a -g command-line option to generate debug information in the target's
preferred debug format.
* Support for the crx-elf target added.
* Support for ColdFire EMAC instructions added and Motorola syntax for MAC/EMAC
instrucitons.
-* New command line option -mno-shared for MIPS ELF targets.
+* New command-line option -mno-shared for MIPS ELF targets.
-* New command line option --alternate and pseudo-ops .altmacro and .noaltmacro
+* New command-line option --alternate and pseudo-ops .altmacro and .noaltmacro
added to enter (and leave) alternate macro syntax mode.
Changes in 2.15:
but still works for compatability.
* The MIPS assembler no longer issues a warning by default when it
- generates a nop instruction from a macro. The new command line option
+ generates a nop instruction from a macro. The new command-line option
-n will turn on the warning.
Changes in 2.11:
* x86 gas has a new .arch pseudo op to specify the target CPU architecture.
-* x86 gas -q command line option quietens warnings about register size changes
+* x86 gas -q command-line option quietens warnings about register size changes
due to suffix, indirect jmp/call without `*', stand-alone prefixes, and
translating various deprecated floating point instructions.
of new CPUs and formats, lots of bugs fixed.
\f
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2012-2020 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
projects / deliverable / binutils-gdb.git / blobdiff