| /* Derived from: $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 <asm-generic/portability.h> |
| #include <machine/asm.h> |
| #include <machine/regnum.h> |
| |
| #include "jboffsets.h" |
| |
| /* |
| * trampolines for sigsetjmp and siglongjmp save and restore mask. |
| */ |
| FRAMESZ= MKFSIZ(1,1) |
| GPOFF= FRAMESZ-2*REGSZ |
| |
| LEAF(WRAP(sigsetjmp), FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, sigsetjmp) |
| .set reorder |
| REG_S a1, JB_SAVEMASK(a0) # save "savemask" |
| bne a1, 0x0, 1f # do saving of signal mask? |
| LA t9, _setjmp_portable |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| |
| 1: LA t9, WRAP(setjmp) |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| END(WRAP(sigsetjmp)) |
| |
| LEAF(WRAP(siglongjmp), FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, WRAP(siglongjmp)) |
| .set reorder |
| REG_L t0, JB_SAVEMASK(a0) # get "savemask" |
| bne t0, 0x0, 1f # restore signal mask? |
| LA t9, _longjmp_portable |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| 1: |
| LA t9, WRAP(longjmp) |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| END(WRAP(siglongjmp)) |
