diff options
Diffstat (limited to 'libc/arch-mips64/bionic/sigsetjmp.S')
| -rw-r--r-- | libc/arch-mips64/bionic/sigsetjmp.S | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/libc/arch-mips64/bionic/sigsetjmp.S b/libc/arch-mips64/bionic/sigsetjmp.S new file mode 100644 index 0000000..b05454c --- /dev/null +++ b/libc/arch-mips64/bionic/sigsetjmp.S @@ -0,0 +1,77 @@ +/* $OpenBSD: sigsetjmp.S,v 1.5 2005/08/07 16:40:15 espie 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> +#include <machine/regnum.h> +#include <machine/setjmp.h> + +/* + * trampolines for sigsetjmp and siglongjmp save and restore mask. + * + */ +FRAMESZ= MKFSIZ(1,1) +GPOFF= FRAMESZ-2*REGSZ + +LEAF(sigsetjmp, FRAMESZ) + PTR_SUBU sp, FRAMESZ + SETUP_GP64(GPOFF, sigsetjmp) + .set reorder + REG_S a1, (_JBLEN*REGSZ)(a0) # save "savemask" + bne a1, 0x0, 1f # do saving of signal mask? + LA t9, _setjmp + RESTORE_GP64 + PTR_ADDU sp, FRAMESZ + jr t9 + +1: LA t9, setjmp + RESTORE_GP64 + PTR_ADDU sp, FRAMESZ + jr t9 +END(sigsetjmp) + +LEAF(siglongjmp, FRAMESZ) + PTR_SUBU sp, FRAMESZ + SETUP_GP64(GPOFF, siglongjmp) + .set reorder + REG_L t0, (_JBLEN*REGSZ)(a0) # get "savemask" + bne t0, 0x0, 1f # restore signal mask? + LA t9, _longjmp + RESTORE_GP64 + PTR_ADDU sp, FRAMESZ + jr t9 +1: + LA t9, longjmp + RESTORE_GP64 + PTR_ADDU sp, FRAMESZ + jr t9 +END(siglongjmp) |