| # |
| # 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 |
| |
