diff options
Diffstat (limited to 'meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0002-arm64-sve-ptrace-Fix-SVE_PT_REGS_OFFSET-definition.patch')
| -rw-r--r-- | meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0002-arm64-sve-ptrace-Fix-SVE_PT_REGS_OFFSET-definition.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0002-arm64-sve-ptrace-Fix-SVE_PT_REGS_OFFSET-definition.patch b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0002-arm64-sve-ptrace-Fix-SVE_PT_REGS_OFFSET-definition.patch new file mode 100644 index 0000000000..462fdba2ed --- /dev/null +++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0002-arm64-sve-ptrace-Fix-SVE_PT_REGS_OFFSET-definition.patch @@ -0,0 +1,43 @@ +From 0dede80d25ae2005f8af7235809fc09a7c47c62e Mon Sep 17 00:00:00 2001 +From: Dave Martin <Dave.Martin@arm.com> +Date: Tue, 11 Dec 2018 19:26:46 +0000 +Subject: [PATCH 2/3] arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition + +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 to 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: Bruce Ashfield <bruce.ashfield@windriver.com> + +Upstream-Status: Submitted [https://www.spinics.net/lists/arm-kernel/msg694800.html] +--- + arch/arm64/include/uapi/asm/ptrace.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +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) + + /* +-- +2.5.0 + |