sysdeps/sh/bsd-setjmp.S

   1 /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'.  SH version.
   2    Copyright (C) 1999-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 /* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
  20    We cannot do it in C because it must be a tail-call, so frame-unwinding
  21    in setjmp doesn't clobber the state restored by longjmp.  */
  22
  23 #include <sysdep.h>
  24
  25 ENTRY (setjmp)
  26 #ifdef SHARED
  27         mova    1f, r0
  28         mov.l   1f, r1
  29         bra     2f
  30          add    r1, r0
  31         .align  2
  32 1:
  33         .long   _GLOBAL_OFFSET_TABLE_
  34 2:
  35         mov.l   3f, r1
  36         mov.l   @(r0,r1), r1
  37         jmp     @r1
  38          mov    #1, r5
  39         .align  2
  40 3:
  41         .long   C_SYMBOL_NAME(__sigsetjmp@GOT)
  42 #else
  43         mov.l   1f, r1
  44         jmp     @r1
  45          mov    #1, r5
  46         .align  2
  47 1:
  48         .long   C_SYMBOL_NAME(__sigsetjmp)
  49 #endif
  50 END (setjmp)