Add setjmp (needed for DDB).
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benno
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@ -32,6 +32,7 @@ powerpc/powerpc/ofw_machdep.c standard
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powerpc/powerpc/openpic.c standard
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powerpc/powerpc/pic_if.m standard
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powerpc/powerpc/pmap.c standard
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powerpc/powerpc/setjmp.S standard
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powerpc/powerpc/sigcode.S standard
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powerpc/powerpc/suswintr.c standard
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powerpc/powerpc/syncicache.c standard
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@ -1,38 +1,10 @@
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/*
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* Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Birrell.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* $FreeBSD$ */
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/* $NetBSD: setjmp.h,v 1.3 1998/09/16 23:51:27 thorpej Exp $ */
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#define _JBLEN 100 /* Size of the jmp_buf on PowerPC. */
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#ifndef _MACHINE_SETJMP_H_
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#define _MACHINE_SETJMP_H_
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#define _JBLEN 100
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/*
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* jmp_buf and sigjmp_buf are encapsulated in different structs to force
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@ -40,7 +12,9 @@
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* internally to avoid some run-time errors for mismatches.
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*/
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#ifndef _ANSI_SOURCE
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typedef struct _sigjmp_buf { int _sjb[_JBLEN + 1]; } sigjmp_buf[1];
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#endif /* not ANSI */
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typedef struct _sigjmp_buf { long _sjb[_JBLEN + 1]; } sigjmp_buf[1];
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#endif
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typedef struct _jmp_buf { int _jb[_JBLEN + 1]; } jmp_buf[1];
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typedef struct _jmp_buf { long _jb[_JBLEN + 1]; } jmp_buf[1];
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#endif /* _MACHINE_SETJMP_H_ */
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103
sys/powerpc/powerpc/setjmp.S
Normal file
103
sys/powerpc/powerpc/setjmp.S
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@ -0,0 +1,103 @@
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/* $FreeBSD$ */
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/* from: NetBSD: setjmp.S,v 1.1 1998/01/27 15:13:12 sakamoto Exp $ */
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/* from: OpenBSD: setjmp.S,v 1.2 1996/12/28 06:22:18 rahnds Exp */
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/* kernel version of this file, does not have signal goop */
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/* int setjmp(jmp_buf env) */
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#define JMP_r1 0x04
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#define JMP_r14 0x08
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#define JMP_r15 0x0c
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#define JMP_r16 0x10
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#define JMP_r17 0x14
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#define JMP_r18 0x18
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#define JMP_r19 0x1c
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#define JMP_r20 0x20
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#define JMP_r21 0x24
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#define JMP_r22 0x28
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#define JMP_r23 0x2c
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#define JMP_r24 0x30
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#define JMP_r25 0x34
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#define JMP_r26 0x38
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#define JMP_r27 0x3c
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#define JMP_r28 0x40
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#define JMP_r29 0x44
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#define JMP_r30 0x48
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#define JMP_r31 0x4c
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#define JMP_lr 0x50
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#define JMP_cr 0x54
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#define JMP_ctr 0x58
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#define JMP_xer 0x5c
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#define JMP_sig 0x60
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.globl setjmp
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setjmp:
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stw 31, JMP_r31(3)
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/* r1, r14-r30 */
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stw 1, JMP_r1 (3)
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stw 14, JMP_r14(3)
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stw 15, JMP_r15(3)
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stw 16, JMP_r16(3)
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stw 17, JMP_r17(3)
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stw 18, JMP_r18(3)
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stw 19, JMP_r19(3)
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stw 20, JMP_r20(3)
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stw 21, JMP_r21(3)
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stw 22, JMP_r22(3)
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stw 23, JMP_r23(3)
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stw 24, JMP_r24(3)
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stw 25, JMP_r25(3)
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stw 26, JMP_r26(3)
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stw 27, JMP_r27(3)
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stw 28, JMP_r28(3)
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stw 29, JMP_r29(3)
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stw 30, JMP_r30(3)
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/* cr, lr, ctr, xer */
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mfcr 0
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stw 0, JMP_cr(3)
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mflr 0
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stw 0, JMP_lr(3)
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mfctr 0
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stw 0, JMP_ctr(3)
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mfxer 0
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stw 0, JMP_xer(3)
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/* f14-f31, fpscr */
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li 3, 0
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blr
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.extern sigsetmask
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.globl longjmp
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longjmp:
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lwz 31, JMP_r31(3)
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/* r1, r14-r30 */
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lwz 1, JMP_r1 (3)
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lwz 14, JMP_r14(3)
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lwz 15, JMP_r15(3)
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lwz 16, JMP_r16(3)
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lwz 17, JMP_r17(3)
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lwz 18, JMP_r18(3)
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lwz 19, JMP_r19(3)
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lwz 20, JMP_r20(3)
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lwz 21, JMP_r21(3)
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lwz 22, JMP_r22(3)
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lwz 23, JMP_r23(3)
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lwz 24, JMP_r24(3)
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lwz 25, JMP_r25(3)
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lwz 26, JMP_r26(3)
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lwz 27, JMP_r27(3)
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lwz 28, JMP_r28(3)
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lwz 29, JMP_r29(3)
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lwz 30, JMP_r30(3)
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/* cr, lr, ctr, xer */
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lwz 0, JMP_cr(3)
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mtcr 0
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lwz 0, JMP_lr(3)
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mtlr 0
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lwz 0, JMP_ctr(3)
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mtctr 0
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lwz 0, JMP_xer(3)
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mtxer 0
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/* f14-f31, fpscr */
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mr 3, 4
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blr
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