include/rseq/rseq-ppc-thread-pointer.h

   1 /* SPDX-License-Identifier: MIT */
   2 /* SPDX-FileCopyrightText: 2021 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> */
   3
   4 /*
   5  * rseq-ppc-thread-pointer.h
   6  */
   7
   8 #ifndef _RSEQ_PPC_THREAD_POINTER
   9 #define _RSEQ_PPC_THREAD_POINTER
  10
  11 #ifdef __cplusplus
  12 extern "C" {
  13 #endif
  14
  15 static inline void *rseq_thread_pointer(void)
  16 {
  17 #ifdef __powerpc64__
  18         register void *__result asm ("r13");
  19 #else
  20         register void *__result asm ("r2");
  21 #endif
  22         asm ("" : "=r" (__result));
  23         return __result;
  24 }
  25
  26 #ifdef __cplusplus
  27 }
  28 #endif
  29
  30 #endif