diff options
Diffstat (limited to 'lib/libc/arch/sh/gen/_setjmp.S')
| -rw-r--r-- | lib/libc/arch/sh/gen/_setjmp.S | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/libc/arch/sh/gen/_setjmp.S b/lib/libc/arch/sh/gen/_setjmp.S new file mode 100644 index 00000000000..09e4f3785d9 --- /dev/null +++ b/lib/libc/arch/sh/gen/_setjmp.S @@ -0,0 +1,86 @@ +/* $OpenBSD: _setjmp.S,v 1.1 2006/10/10 22:07:10 miod Exp $ */ +/* $NetBSD: _setjmp.S,v 1.7 2006/01/05 02:04:41 uwe Exp $ */ + +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)_setjmp.s 5.1 (Berkeley) 4/23/90 + */ + +#include <machine/asm.h> +#include <machine/setjmp.h> + +/* + * C library -- _setjmp, _longjmp + * + * _longjmp(a,v) + * will generate a "return(v)" from the last call to + * _setjmp(a) + * by restoring registers from the stack. + * The previous signal state is NOT restored. + */ + +ENTRY(_setjmp) + add #((_JB_HAS_MASK + 1) * 4), r4 + mov #0, r0 + mov.l r0, @-r4 /* no saved signal mask */ + 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 + sts.l pr, @-r4 + rts + xor r0, r0 + SET_ENTRY_SIZE(_setjmp) + +ENTRY(_longjmp) + lds.l @r4+, pr + mov.l @r4+, r8 + mov.l @r4+, r9 + mov.l @r4+, r10 + mov.l @r4+, r11 + mov.l @r4+, r12 + mov.l @r4+, r13 + mov.l @r4+, r14 + mov.l @r4+, r15 + + mov r5, r0 + tst r0, r0 + bf .L0 + add #1, r0 +.L0: + rts + nop + SET_ENTRY_SIZE(_longjmp) |