user_ip            35 tools/testing/selftests/powerpc/ptrace/ptrace-syscall.c #define user_ip		nip
user_ip            27 tools/testing/selftests/x86/ptrace_syscall.c # define user_ip		rip
user_ip            37 tools/testing/selftests/x86/ptrace_syscall.c # define user_ip		eip