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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 /bfd/cpu-aarch64.c | |
| parent | 7ba115508aa02ffbb01a09613b5dffdd0c6563e3 (diff) | |
| download | binutils-gdb-95830c988a648e55042f4999f1f6a06e0879e533.tar.gz | |
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 'bfd/cpu-aarch64.c')
| -rw-r--r-- | bfd/cpu-aarch64.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/bfd/cpu-aarch64.c b/bfd/cpu-aarch64.c index b3df3faad9e..8d9b420a425 100644 --- a/bfd/cpu-aarch64.c +++ b/bfd/cpu-aarch64.c @@ -107,8 +107,12 @@ scan (const struct bfd_arch_info *info, const char *string) "aarch64", PRINT, 4, DEFAULT, compatible, scan, \ bfd_arch_default_fill, NEXT, 0 } +static const bfd_arch_info_type bfd_aarch64_arch_v8_r = + N (bfd_mach_aarch64_8R, "aarch64:armv8-r", 64, FALSE, NULL); + static const bfd_arch_info_type bfd_aarch64_arch_ilp32 = - N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", 32, FALSE, NULL); + N (bfd_mach_aarch64_ilp32, "aarch64:ilp32", 32, FALSE, + &bfd_aarch64_arch_v8_r); const bfd_arch_info_type bfd_aarch64_arch = N (0, "aarch64", 64, TRUE, &bfd_aarch64_arch_ilp32); |