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-rw-r--r--libc/sysdeps/linux/alpha/setjmp.S97
1 files changed, 97 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/alpha/setjmp.S b/libc/sysdeps/linux/alpha/setjmp.S
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+++ b/libc/sysdeps/linux/alpha/setjmp.S
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+/* 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