sysdeps/sh/sh3/setjmp.S

   1 /* setjmp for SH3.
   2    Copyright (C) 1999-2021 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include <jmpbuf-offsets.h>
  21
  22 ENTRY (__sigsetjmp)
  23         /* Save registers */
  24         add     #(JB_SIZE - 4 * 5), r4
  25         stc.l   gbr, @-r4
  26 #ifdef PTR_MANGLE
  27         sts     pr, r2
  28         PTR_MANGLE (r2, r1)
  29         mov.l   r2, @-r4
  30         mov     r15, r2
  31         PTR_MANGLE2 (r2, r1)
  32         mov.l   r2, @-r4
  33         mov     r14, r2
  34         PTR_MANGLE2 (r2, r1)
  35         mov.l   r2, @-r4
  36         mov     #0, r1
  37 #else
  38         sts.l   pr, @-r4
  39         mov.l   r15, @-r4
  40         mov.l   r14, @-r4
  41 #endif
  42         mov.l   r13, @-r4
  43         mov.l   r12, @-r4
  44         mov.l   r11, @-r4
  45         mov.l   r10, @-r4
  46         mov.l   r9, @-r4
  47         mov.l   r8, @-r4
  48
  49 #if IS_IN (rtld)
  50         /* In ld.so we never save the signal mask.  */
  51         rts
  52          mov    #0, r0
  53 #else
  54         /* Make a tail call to __sigjmp_save; it takes the same args.  */
  55 # ifdef SHARED
  56         mov.l   1f, r1
  57         mova    1f, r0
  58         bra     2f
  59          add    r1, r0
  60         .align  2
  61 1:
  62         .long   _GLOBAL_OFFSET_TABLE_
  63 2:
  64         mov.l   .L1, r1
  65         mov.l   @(r0,r1), r1
  66         jmp     @r1
  67          nop
  68         .align  2
  69 .L1:
  70         .long   C_SYMBOL_NAME(__sigjmp_save@GOT)
  71 # else
  72         mov.l   .L1, r1
  73         jmp     @r1
  74          nop
  75         .align  2
  76 .L1:
  77         .long   C_SYMBOL_NAME(__sigjmp_save)
  78 # endif
  79 #endif
  80 END (__sigsetjmp)
  81 hidden_def (__sigsetjmp)