orig_rax 69 arch/x86/include/uapi/asm/ptrace.h unsigned long orig_rax; orig_rax 1577 tools/testing/selftests/seccomp/seccomp_bpf.c # define SYSCALL_NUM orig_rax orig_rax 20 tools/testing/selftests/x86/ptrace_syscall.c # define user_syscall_nr orig_rax