102 lines
1.7 KiB
ArmAsm
102 lines
1.7 KiB
ArmAsm
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/* $NetBSD: __setjmp14.S,v 1.2 2009/03/08 18:57:12 he Exp $ */
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#include <sys/syscall.h>
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#include <machine/asm.h>
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#if defined(LIBC_SCCS)
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.text
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.asciz "$NetBSD: __setjmp14.S,v 1.2 2009/03/08 18:57:12 he Exp $"
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#endif
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/*
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* C library -- _setjmp, _longjmp
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*
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* longjmp(a,v)
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* will generate a "return(v?v:1)" from the last call to
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* setjmp(a)
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* by restoring registers from the stack.
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* The previous signal state is restored.
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*/
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ENTRY(__setjmp14)
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mr %r6,%r3
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li %r3,1 # SIG_BLOCK
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li %r4,0
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addi %r5,%r6,100 # &sigmask
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li %r0,SYS___sigprocmask14
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sc # assume no error XXX
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mflr %r11
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mfcr %r12
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mr %r10,%r1
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mr %r9,%r2
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std %r8,8(%r6) # save r8-r31
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std %r9,16(%r6)
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std %r10,24(%r6)
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std %r11,32(%r6)
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std %r12,40(%r6)
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std %r13,48(%r6)
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std %r14,56(%r6)
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std %r15,64(%r6)
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std %r16,72(%r6)
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std %r17,80(%r6)
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std %r18,88(%r6)
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std %r19,96(%r6)
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std %r20,104(%r6)
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std %r21,112(%r6)
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std %r22,120(%r6)
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std %r23,128(%r6)
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std %r24,136(%r6)
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std %r25,144(%r6)
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std %r26,152(%r6)
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std %r27,160(%r6)
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std %r28,168(%r6)
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std %r29,176(%r6)
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std %r30,184(%r6)
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std %r31,192(%r6)
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li %r3,0
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blr
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ENTRY(__longjmp14)
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ld %r8,8(%r6) # load r8-r31
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ld %r9,16(%r6)
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ld %r10,24(%r6)
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ld %r11,32(%r6)
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ld %r12,40(%r6)
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ld %r13,48(%r6)
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ld %r14,56(%r6)
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ld %r15,64(%r6)
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ld %r16,72(%r6)
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ld %r17,80(%r6)
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ld %r18,88(%r6)
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ld %r19,96(%r6)
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ld %r20,104(%r6)
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ld %r21,112(%r6)
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ld %r22,120(%r6)
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ld %r23,128(%r6)
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ld %r24,136(%r6)
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ld %r25,144(%r6)
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ld %r26,152(%r6)
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ld %r27,160(%r6)
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ld %r28,168(%r6)
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ld %r29,176(%r6)
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ld %r30,184(%r6)
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ld %r31,192(%r6)
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mr %r6,%r4
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mtlr %r11
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mtcr %r12
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mr %r2,%r9
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mr %r1,%r10
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addi %r4,%r3,100 # &sigmask
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li %r3,3 # SIG_SETMASK
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li %r5,0
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li %r0,SYS___sigprocmask14
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sc # assume no error XXX
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or. %r3,%r6,%r6
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bnelr
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li %r3,1
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blr
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