sysdeps/csky/abiv2/setjmp.S

   1 /* setjmp for C-SKY ABIV2.
   2    Copyright (C) 2018-2019 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20
  21 ENTRY (setjmp)
  22         movi    a1, 1
  23         br      __sigsetjmp
  24 END (setjmp)
  25
  26 ENTRY (_setjmp)
  27         movi    a1, 0
  28         br      __sigsetjmp
  29 END (_setjmp)
  30
  31 libc_hidden_def (_setjmp)
  32
  33 ENTRY (__sigsetjmp)
  34         mov     a2, a0
  35         /* Save registers.  */
  36
  37 #ifdef PTR_MANGLE
  38         PTR_MANGLE (t0, sp, a3)
  39         stw     t0, (a2, 0)
  40         PTR_MANGLE2 (t0, lr, a3)
  41         stw     t0, (a2, 4)
  42 #else
  43         stw     sp, (a2, 0)
  44         stw     lr, (a2, 4)
  45 #endif
  46         stw     r4, (a2, 8)
  47         stw     r5, (a2, 12)
  48         stw     r6, (a2, 16)
  49         stw     r7, (a2, 20)
  50         stw     r8, (a2, 24)
  51         stw     r9, (a2, 28)
  52         stw     r10, (a2, 32)
  53         stw     r11, (a2, 36)
  54         stw     r16, (a2, 40)
  55         stw     r17, (a2, 44)
  56         stw     r26, (a2, 48)
  57         stw     r27, (a2, 52)
  58         stw     r28, (a2, 56)
  59         stw     r29, (a2, 60)
  60         stw     r30, (a2, 64)
  61         stw     r31, (a2, 68)
  62         addi    a2, 72
  63
  64 #ifdef __PIC__
  65         grs     t1, .Lgetpc
  66 .Lgetpc:
  67         lrw     t0, .Lgetpc@GOTPC
  68         addu    t1, t0
  69         lrw     a2, __sigjmp_save@PLT
  70         ldr.w   a2, (t1, a2 << 0)
  71         jmp     a2
  72 #else
  73         jmpi    __sigjmp_save
  74 #endif /* !__PIC__ */
  75 END (__sigsetjmp)
  76
  77 hidden_def (__sigsetjmp)