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sigsetjmp.S revision 1.2.10.2 
      1 /*	$NetBSD: sigsetjmp.S,v 1.2.10.2 2000/09/04 21:36:34 eeh Exp $	*/
      2 /*
      3  * Copyright (c) 1995 Paul Kranenburg
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Paul Kranenburg.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  *
     31  */
     32 
     33 #include "SYS.h"
     34 
     35 #ifdef PIC
     36 
     37 ENTRY(sigsetjmp)
     38 	PIC_PROLOGUE(%g1,%o2)		! %g1 = _GLOBAL_OFFSET_TABLE
     39 	set	_C_LABEL(setjmp), %o2	! if (%o1 != 0) goto _setjmp;
     40 	set	_C_LABEL(_setjmp), %o3	! else goto __setjmp;
     41 	movrnz	%o1, %o2, %o3
     42 	ldx [%g1+%o3], %g1
     43 	jmp %g1
     44 	 st	%o1,[%o0+0x48]		! jmpbuf[JBLEN]
     45 
     46 
     47 ENTRY(siglongjmp)
     48 	PIC_PROLOGUE(%g1,%o2)		! %g1 = _GLOBAL_OFFSET_TABLE
     49 	ld	[%o0 + 0x48],%o2	! jmpbuf[JBLEN]
     50 	set	_C_LABEL(longjmp), %o3	! if (%o2 != 0) goto _longjmp;
     51 	set	_C_LABEL(_longjmp), %o4	! else goto __longjmp;
     52 	movrnz	%o2, %o3, %o4
     53 	ldx	[%g1 + %o4], %g1
     54 	jmp %g1
     55 	 nop
     56 	unimp 0
     57 
     58 #else /* PIC */
     59 
     60 ENTRY(sigsetjmp)
     61 	brz,pt	%o1,_C_LABEL(_setjmp)
     62 	 st	%o1,[%o0+0x48]		! jmpbuf[JBLEN]
     63 	ba,a,pt	%icc,_C_LABEL(setjmp)
     64 	 nop				! spitfire bug
     65 	unimp 0
     66 
     67 ENTRY(siglongjmp)
     68 	ld	[%o0 + 0x48], %g1
     69 	brz,pt	%g1, _C_LABEL(_longjmp)
     70 	 nop
     71 	ba,a,pt	%icc, _C_LABEL(longjmp)
     72 	unimp 0
     73 
     74 #endif /* PIC */
     75