From f07f1503469b11b739892d50c836992ffbe026ee Mon Sep 17 00:00:00 2001 From: Ilya Leoshkevich Date: Wed, 9 Feb 2022 03:17:39 +0100 Subject: [PATCH] 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 Signed-off-by: Ilya Leoshkevich Signed-off-by: Andrii Nakryiko Tested-by: Naveen N. Rao Link: https://lore.kernel.org/bpf/20220209021745.2215452-5-iii@linux.ibm.com --- tools/lib/bpf/bpf_tracing.h | 2 ++ 1 file changed, 2 insertions(+) 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)