user_arg4          33 tools/testing/selftests/powerpc/ptrace/ptrace-syscall.c #define user_arg4		gpr[7]
user_arg4          25 tools/testing/selftests/x86/ptrace_syscall.c # define user_arg4		r8
user_arg4          35 tools/testing/selftests/x86/ptrace_syscall.c # define user_arg4		edi