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| author | Alex Coplan <alex.coplan@arm.com> | 2020-10-06 15:56:44 +0100 |
|---|---|---|
| committer | Alex Coplan <alex.coplan@arm.com> | 2020-10-06 15:56:44 +0100 |
| commit | 05cfb0d8cc9b7f8676f5ae55a93642f091d5405f (patch) | |
| tree | c85ab3d18c56b8ae2d8057ae091c36c774748cbf /gnulib | |
| parent | 0ec992e6647c00fc234cdf4c11732b6711b024af (diff) | |
| download | gdb-05cfb0d8cc9b7f8676f5ae55a93642f091d5405f.zip gdb-05cfb0d8cc9b7f8676f5ae55a93642f091d5405f.tar.gz gdb-05cfb0d8cc9b7f8676f5ae55a93642f091d5405f.tar.bz2 | |
aarch64: Fix bogus type punning in parse_barrier() [PR26699]
This patch fixes a bogus use of type punning in parse_barrier() which
was causing an assembly failure on big endian LP64 hosts when attempting
to assemble "isb sy" for AArch64.
The type of the entries in aarch64_barrier_opt_hsh is
aarch64_name_value_pair. We were incorrectly casting this to the
locally-defined asm_barrier_opt which has a wider type (on LP64) for the
second member. This happened to work on little-endian hosts but fails on
LP64 big endian.
The fix is to use the correct type in parse_barrier(). This makes the
locally-defined asm_barrier_opt redundant, so remove it.
gas/ChangeLog:
* config/tc-aarch64.c (asm_barrier_opt): Delete.
(parse_barrier): Fix bogus type punning.
* testsuite/gas/aarch64/system.d: Update disassembly.
* testsuite/gas/aarch64/system.s: Add isb sy test.
Diffstat (limited to 'gnulib')
0 files changed, 0 insertions, 0 deletions