diff options
Diffstat (limited to 'lib/libc/mips/gen/sigsetjmp.S')
| -rw-r--r-- | lib/libc/mips/gen/sigsetjmp.S | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/libc/mips/gen/sigsetjmp.S b/lib/libc/mips/gen/sigsetjmp.S new file mode 100644 index 0000000..4e86e28 --- /dev/null +++ b/lib/libc/mips/gen/sigsetjmp.S @@ -0,0 +1,86 @@ +/* $NetBSD: sigsetjmp.S,v 1.8 2005/09/17 11:49:39 tsutsui Exp $ */ + +/*- + * Copyright (c) 1991, 1993, 1995, + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Havard Eidnes. + * + * 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. + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); +#include <machine/regnum.h> +#if defined(LIBC_SCCS) && !defined(lint) + ASMSTR("from: @(#)setjmp.s 8.1 (Berkeley) 6/4/93") + ASMSTR("$NetBSD: sigsetjmp.S,v 1.8 2005/09/17 11:49:39 tsutsui Exp $") +#endif /* LIBC_SCCS and not lint */ + +#ifdef __ABICALLS__ + .abicalls +#endif + +/* + * C library -- sigsetjmp, siglongjmp + * + * siglongjmp(a,v) + * will generate a "return(v)" from + * the last call to + * sigsetjmp(a, savemask) + * by restoring registers from the stack, + * and dependent on savemask restores the + * signal mask. + */ + +LEAF(sigsetjmp) +#ifdef __ABICALLS__ + .set noreorder + .cpload t9 + .set reorder +#endif + bne a1, 0x0, 1f # do saving of signal mask? + la t9, _setjmp + jr t9 + +1: la t9, setjmp + jr t9 +END(sigsetjmp) + +LEAF(siglongjmp) +#ifdef __ABICALLS__ + .set noreorder + .cpload t9 + .set reorder +#endif + lw t0, (_JB_MAGIC * SZREG)(a0) + li t1, _JB_MAGIC__SETJMP + bne t0, t1, 1f # setjmp or _setjmp magic? + la t9, _longjmp + jr t9 +1: la t9, longjmp + jr t9 +END(siglongjmp) |
