lib/libthread_xu/arch/amd64/amd64/_umtx_sleep_wakeup_err.S

   1 #include <machine/asm.h>
   2 #include <sys/syscall.h>
   3
   4
   5 #define KERNCALL        movq %rcx, %r10; syscall
   6
   7 #define SYSCALL_ERR(x)                                          \
   8                         ENTRY(__CONCAT(x, _err));               \
   9                         mov __CONCAT($SYS,x),%rax; KERNCALL; ret
  10
  11
  12 SYSCALL_ERR(_umtx_sleep)
  13 SYSCALL_ERR(_umtx_wakeup)