REG_RAX            44 samples/seccomp/bpf-direct.c #define REG_RESULT	REG_RAX
REG_RAX            45 samples/seccomp/bpf-direct.c #define REG_SYSCALL	REG_RAX
REG_RAX            60 tools/testing/selftests/x86/syscall_arg_fault.c #define REG_AX REG_RAX