From: Ilya Leoshkevich iii@linux.ibm.com
[ Upstream commit f07f1503469b11b739892d50c836992ffbe026ee ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 90f56b0f585f..d40b87c0e4b9 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -178,6 +178,8 @@ #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)