1  /* Copyright (C) 2002-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <stdlib.h>
      19  #include "pthreadP.h"
      20  #include <shlib-compat.h>
      21  
      22  void
      23  __cleanup_fct_attribute
      24  ___pthread_register_cancel (__pthread_unwind_buf_t *buf)
      25  {
      26    struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
      27    struct pthread *self = THREAD_SELF;
      28  
      29    /* Store old info.  */
      30    ibuf->priv.data.prev = THREAD_GETMEM (self, cleanup_jmp_buf);
      31    ibuf->priv.data.cleanup = THREAD_GETMEM (self, cleanup);
      32  
      33    /* Store the new cleanup handler info.  */
      34    THREAD_SETMEM (self, cleanup_jmp_buf, (struct pthread_unwind_buf *) buf);
      35  }
      36  versioned_symbol (libc, ___pthread_register_cancel,
      37                    __pthread_register_cancel, GLIBC_2_34);
      38  libc_hidden_ver (___pthread_register_cancel, __pthread_register_cancel)
      39  
      40  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_34)
      41  compat_symbol (libpthread, ___pthread_register_cancel,
      42                 __pthread_register_cancel, GLIBC_2_3_3);
      43  #endif
      44  
      45  
      46  void
      47  __cleanup_fct_attribute
      48  ___pthread_unregister_cancel (__pthread_unwind_buf_t *buf)
      49  {
      50    struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
      51  
      52    THREAD_SETMEM (THREAD_SELF, cleanup_jmp_buf, ibuf->priv.data.prev);
      53  }
      54  versioned_symbol (libc, ___pthread_unregister_cancel,
      55                    __pthread_unregister_cancel, GLIBC_2_34);
      56  libc_hidden_ver (___pthread_unregister_cancel, __pthread_unregister_cancel)
      57  
      58  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_34)
      59  compat_symbol (libpthread, ___pthread_unregister_cancel,
      60                 __pthread_unregister_cancel, GLIBC_2_3_3);
      61  #endif