diff mbox series

[bpf-next,v2,01/10] arm64/bpf: Add orig_x0 to user_pt_regs

Message ID 20220204041955.1958263-2-iii@linux.ibm.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series libbpf: Fix accessing syscall arguments | expand

Checks

Context Check Description
bpf/vmtest-bpf-next success VM_Test
bpf/vmtest-bpf-next-PR success PR summary
netdev/tree_selection success Clearly marked for bpf-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 10 maintainers not CCed: andrii@kernel.org kpsingh@kernel.org linux-arm-kernel@lists.infradead.org john.fastabend@gmail.com kafai@fb.com songliubraving@fb.com yhs@fb.com oleg@redhat.com netdev@vger.kernel.org will@kernel.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 17 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Ilya Leoshkevich Feb. 4, 2022, 4:19 a.m. UTC 
orig_x0 is needed in order to access the first syscall argument from
eBPF programs.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 arch/arm64/include/asm/ptrace.h      | 2 +-
 arch/arm64/include/uapi/asm/ptrace.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 41b332c054ab..1be22f7870f8 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -183,9 +183,9 @@  struct pt_regs {
 			u64 sp;
 			u64 pc;
 			u64 pstate;
+			u64 orig_x0;
 		};
 	};
-	u64 orig_x0;
 #ifdef __AARCH64EB__
 	u32 unused2;
 	s32 syscallno;
diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h
index 758ae984ff97..3c118c5b0893 100644
--- a/arch/arm64/include/uapi/asm/ptrace.h
+++ b/arch/arm64/include/uapi/asm/ptrace.h
@@ -90,6 +90,7 @@  struct user_pt_regs {
 	__u64		sp;
 	__u64		pc;
 	__u64		pstate;
+	__u64		orig_x0;
 };
 
 struct user_fpsimd_state {