From: Ilya Leoshkevich Date: Wed, 9 Feb 2022 02:17:39 +0000 (+0100) Subject: libbpf: Fix accessing syscall arguments on powerpc X-Git-Tag: v5.18-rc1~136^2~392^2~3^2~6 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f07f1503469b11b739892d50c836992ffbe026ee;p=thirdparty%2Flinux.git 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 --- diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index a5e92656bfba6..20bc63770c9f2 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)