diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2016-11-07 16:07:07 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-01-03 16:34:37 +0100 |
| commit | 096a0de427ea333f56f0ee00328cff2a2731bcf1 (patch) | |
| tree | 84c8ca5e375b7edd44eabad80a6c5c2624d798d2 /arch | |
| parent | MIPS: Calculate microMIPS ra properly when unwinding the stack (diff) | |
| download | linux-096a0de427ea333f56f0ee00328cff2a2731bcf1.tar.xz linux-096a0de427ea333f56f0ee00328cff2a2731bcf1.zip | |
MIPS: Handle microMIPS jumps in the same way as MIPS32/MIPS64 jumps
is_jump_ins() checks for plain jump ("j") instructions since commit
e7438c4b893e ("MIPS: Fix sibling call handling in get_frame_info") but
that commit didn't make the same change to the microMIPS code, leaving
it inconsistent with the MIPS32/MIPS64 code. Handle the microMIPS
encoding of the jump instruction too such that it behaves consistently.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: e7438c4b893e ("MIPS: Fix sibling call handling in get_frame_info")
Cc: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # v3.10+
Patchwork: https://patchwork.linux-mips.org/patch/14533/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/process.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 801b399d4861..efa1df52c616 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -294,6 +294,8 @@ static inline int is_jump_ins(union mips_instruction *ip) return 0; } + if (ip->j_format.opcode == mm_j32_op) + return 1; if (ip->j_format.opcode == mm_jal32_op) return 1; if (ip->r_format.opcode != mm_pool32a_op || |