diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-02-09 05:17:39 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-02-09 08:16:14 +0300 |
| commit | f07f1503469b11b739892d50c836992ffbe026ee (patch) | |
| tree | 0f3302ffb9d66df82dce9f6afc507d3e88421501 /tools/lib | |
| parent | 3f928cab927c576f3385f3e828c53a95b2199f58 (diff) | |
| download | linux-f07f1503469b11b739892d50c836992ffbe026ee.tar.xz | |
libbpf: Fix accessing syscall arguments on powerpc
powerpc does not select ARCH_HAS_SYSCALL_WRAPPER, so its syscall
handlers take "unpacked" syscall arguments. Indicate this to libbpf
using PT_REGS_SYSCALL_REGS macro.
Reported-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-5-iii@linux.ibm.com
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf_tracing.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index a5e92656bfba..20bc63770c9f 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -180,6 +180,8 @@ #define __PT_RC_REG gpr[3] #define __PT_SP_REG sp #define __PT_IP_REG nip +/* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ctx #elif defined(bpf_target_sparc) |