diff options
Diffstat (limited to 'libc/sysdeps/linux/alpha/setjmp.S')
-rw-r--r-- | libc/sysdeps/linux/alpha/setjmp.S | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/alpha/setjmp.S b/libc/sysdeps/linux/alpha/setjmp.S new file mode 100644 index 000000000..69649eeab --- /dev/null +++ b/libc/sysdeps/linux/alpha/setjmp.S @@ -0,0 +1,97 @@ +/* Copyright (C) 1992, 1994, 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <features.h> +#define _ASM +#define _SETJMP_H +#define __ASSEMBLY__ +#include <bits/setjmp.h> + +#define a0 $16 + + .ent __sigsetjmp + .global __sigsetjmp +__sigsetjmp: + ldgp $29, 0($27) + +$sigsetjmp_local: + subq $30, 16, $30 + .frame $26, 16, $26, 0 + stq $26, 0($30) + .mask 0x04000000, -16 +#ifdef PROF + .set noat + lda AT, _mcount + jsr AT, (AT), _mcount + .set at +#endif + .prologue 1 + + stq $9, JB_S0*8(a0) + stq $10, JB_S1*8(a0) + stq $11, JB_S2*8(a0) + stq $12, JB_S3*8(a0) + stq $13, JB_S4*8(a0) + stq $14, JB_S5*8(a0) + stq $26, JB_PC*8(a0) + addq $30, 16, $1 + stq $15, JB_FP*8(a0) + stq $1, JB_SP*8(a0) + stt $f2, JB_F2*8(a0) + stt $f3, JB_F3*8(a0) + stt $f4, JB_F4*8(a0) + stt $f5, JB_F5*8(a0) + stt $f6, JB_F6*8(a0) + stt $f7, JB_F7*8(a0) + stt $f8, JB_F8*8(a0) + stt $f9, JB_F9*8(a0) + + /* Call to C to (potentially) save our signal mask. */ + jsr $26, __sigjmp_save + + ldq $26, 0($30) + addq $30, 16, $30 + ret + +.end __sigsetjmp + +/* Put these traditional entry points in the same file so that we can + elide much of the nonsense in trying to jmp to the real function. */ + +.globl _setjmp; +.align 3; +.ent _setjmp , 0; +_setjmp: + .frame $30 , 0, $26 + ldgp $29, 0($27) + mov 0, $17 + br $sigsetjmp_local +.end _setjmp + +.globl setjmp; +.align 3; +.ent setjmp , 0; +setjmp: + .frame $30 , 0, $26 + ldgp $29, 0($27) + mov 1, $17 + br $sigsetjmp_local +.end setjmp + +.weak _setjmp +.weak setjmp |