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#
# arch/ppc/setjmp.S
#
# Basic setjmp/longjmp implementation
# This file was derived from the equivalent file in NetBSD
#
.text
.align 4
.type setjmp,@function
.globl setjmp
setjmp:
mflr %r11 /* save return address */
mfcr %r12 /* save condition register */
mr %r10,%r1 /* save stack pointer */
mr %r9,%r2 /* save GPR2 (not needed) */
stmw %r9,0(%r3) /* save r9..r31 */
li %r3,0 /* indicate success */
blr /* return */
.size setjmp,.-setjmp
.type longjmp,@function
.globl longjmp
longjmp:
lmw %r9,0(%r3) /* save r9..r31 */
mtlr %r11 /* restore LR */
mtcr %r12 /* restore CR */
mr %r2,%r9 /* restore GPR2 (not needed) */
mr %r1,%r10 /* restore stack */
mr %r3,%r4 /* get return value */
blr /* return */
.size longjmp,.-longjmp
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