libc-top-half/musl/arch/wasm32/pthread_arch.h

   1 uintptr_t __get_tp(void) {
   2 #if _REENTRANT
   3   int val;
   4   __asm__("global.get __wasilibc_pthread_self\n"
   5           "local.set %0"
   6           : "=r"(val));
   7   return val;
   8 #else
   9   return 0;
  10 #endif
  11 }