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| author | Alex Coplan <alex.coplan@arm.com> | 2020-09-08 14:13:45 +0100 |
|---|---|---|
| committer | Alex Coplan <alex.coplan@arm.com> | 2020-09-08 14:14:11 +0100 |
| commit | 95830c988a648e55042f4999f1f6a06e0879e533 (patch) | |
| tree | c2af09d241b50395a615952b976cf2e95029407c /gas | |
| parent | 7ba115508aa02ffbb01a09613b5dffdd0c6563e3 (diff) | |
| download | gdb-95830c988a648e55042f4999f1f6a06e0879e533.zip gdb-95830c988a648e55042f4999f1f6a06e0879e533.tar.gz gdb-95830c988a648e55042f4999f1f6a06e0879e533.tar.bz2 | |
aarch64: Add base support for Armv8-R
This patch adds the basic infrastructure needed to support Armv8-R in
AArch64 binutils: new command-line flags, new feature bits, a new BFD
architecture, and support for differentiating between architecture
variants in the disassembler.
The new command-line options added by this patch are -march=armv8-r in
GAS and -m aarch64:armv8-r in objdump.
The disassembler support is necessary since Armv8-R AArch64 introduces a
system register (VSCTLR_EL2) which shares an encoding with a different
system register (TTBR0_EL2) in Armv8-A. This also allows us to use the
correct preferred disassembly for the new DFB alias introduced in
Armv8-R.
bfd/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* archures.c (bfd_mach_aarch64_8R): New.
* bfd-in2.h: Regenerate.
* cpu-aarch64.c (bfd_aarch64_arch_v8_r): New.
(bfd_aarch64_arch_ilp32): Update tail pointer.
gas/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* config/tc-aarch64.c (aarch64_archs): Add armv8-r.
* doc/c-aarch64.texi: Document -march=armv8-r.
include/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* opcode/aarch64.h (AARCH64_FEATURE_V8_A): New.
(AARCH64_FEATURE_V8_R): New.
(AARCH64_ARCH_V8): Include new A-profile feature bit.
(AARCH64_ARCH_V8_R): New.
opcodes/ChangeLog:
2020-09-08 Alex Coplan <alex.coplan@arm.com>
* aarch64-dis.c (arch_variant): New.
(determine_disassembling_preference): Disassemble according to
arch variant.
(select_aarch64_variant): New.
(print_insn_aarch64): Set feature set.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-aarch64.c | 1 | ||||
| -rw-r--r-- | gas/doc/c-aarch64.texi | 2 |
3 files changed, 7 insertions, 1 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 117f7e0..1c5929d 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2020-09-08 Alex Coplan <alex.coplan@arm.com> + + * config/tc-aarch64.c (aarch64_archs): Add armv8-r. + * doc/c-aarch64.texi: Document -march=armv8-r. + 2020-09-07 Mark Wielaard <mark@klomp.org> * dwarf2dbg.c (add_line_strp): New function. diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index db5edcb..effa976 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -8997,6 +8997,7 @@ static const struct aarch64_arch_option_table aarch64_archs[] = { {"armv8.4-a", AARCH64_ARCH_V8_4}, {"armv8.5-a", AARCH64_ARCH_V8_5}, {"armv8.6-a", AARCH64_ARCH_V8_6}, + {"armv8-r", AARCH64_ARCH_V8_R}, {NULL, AARCH64_ARCH_NONE} }; diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi index 86b6efc..89725a7 100644 --- a/gas/doc/c-aarch64.texi +++ b/gas/doc/c-aarch64.texi @@ -100,7 +100,7 @@ issue an error message if an attempt is made to assemble an instruction which will not execute on the target architecture. The following architecture names are recognized: @code{armv8-a}, @code{armv8.1-a}, @code{armv8.2-a}, @code{armv8.3-a}, @code{armv8.4-a} -@code{armv8.5-a}, and @code{armv8.6-a}. +@code{armv8.5-a}, @code{armv8.6-a}, and @code{armv8-r}. If both @option{-mcpu} and @option{-march} are specified, the assembler will use the setting for @option{-mcpu}. If neither are |