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/* setjmp for SH3.
Copyright (C) 1999, 2000 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <features.h>
#include <jmpbuf-offsets.h>
.text
/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
.align 4
.type _setjmp,@function
.globl _setjmp;
_setjmp:
bra __sigsetjmp_intern
mov #0, r1
.size _setjmp,.-_setjmp;
/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
.align 4
.type setjmp,@function
.globl setjmp;
setjmp:
bra __sigsetjmp_intern
mov #1, r1
.size setjmp,.-setjmp;
.align 4
.type __sigsetjmp,@function
.globl __sigsetjmp;
__sigsetjmp:
mov r0, r1
nop /* align this guy */
__sigsetjmp_intern:
/* Save registers */
#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
add #(JB_SIZE), r4
fmov.s fr15, @-r4
fmov.s fr14, @-r4
fmov.s fr13, @-r4
fmov.s fr12, @-r4
sts.l fpscr, @-r4
#else
add #(JB_SIZE-(5*4)), r4 /* this code doesn't do FP yet */
#endif
stc.l gbr, @-r4
sts.l pr, @-r4
mov.l r15, @-r4
mov.l r14, @-r4
mov.l r13, @-r4
mov.l r12, @-r4
mov.l r11, @-r4
mov.l r10, @-r4
mov.l r9, @-r4
mov.l r8, @-r4
#ifdef __HAVE_SHARED__
mov.l .LG, r2
mova .LG, r0
add r0, r2
/* Make a tail call to __sigjmp_save; it takes the same args. */
mov.l .L1, r0
mov.l @(r0,r2),r0
jmp @r0
mov r1, r0
.align 2
.LG: .long _GLOBAL_OFFSET_TABLE_
.L1: .long __sigjmp_save@GOT
#else
/* Make a tail call to __sigjmp_save; it takes the same args. */
mov.l .L1, r0
braf r0
mov r1, r0
.jmp_loc:
.align 2
.L1: .long __sigjmp_save - .jmp_loc
#endif
.size __sigsetjmp,.-__sigsetjmp;
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