diff options
| author | Dave Martin <Dave.Martin@arm.com> | 2019-01-04 13:09:50 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:47:19 +0100 |
| commit | d69ad39ad5d33b26efbbb50adb825849622f1d88 (patch) | |
| tree | e063a890542b965a5ec0e54a45fd87fc159006ff /arch | |
| parent | d921bb16259e7aace00fb96ed757d2683358fd26 (diff) | |
arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition
[ Upstream commit ee1b465b303591d3a04d403122bbc0d7026520fb ]
SVE_PT_REGS_OFFSET is supposed to indicate the offset for skipping
over the ptrace NT_ARM_SVE header (struct user_sve_header) to the
start of the SVE register data proper.
However, currently SVE_PT_REGS_OFFSET is defined in terms of struct
sve_context, which is wrong: that structure describes the SVE
header in the signal frame, not in the ptrace regset.
This patch fixes the definition to use the ptrace header structure
struct user_sve_header instead.
By good fortune, the two structures are the same size anyway, so
there is no functional or ABI change.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/uapi/asm/ptrace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h index 98c4ce55d9c3..ad64d2c92ef5 100644 --- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -130,7 +130,7 @@ struct user_sve_header { /* Offset from the start of struct user_sve_header to the register data */ #define SVE_PT_REGS_OFFSET \ - ((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1)) \ + ((sizeof(struct user_sve_header) + (SVE_VQ_BYTES - 1)) \ / SVE_VQ_BYTES * SVE_VQ_BYTES) /* |