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| author | rofl0r <retnyg@gmx.net> | 2012-11-09 23:36:55 +0100 |
|---|---|---|
| committer | rofl0r <retnyg@gmx.net> | 2012-11-13 19:12:25 +0100 |
| commit | 1c8eb8bad791fe9d01d0d4ab77882db634fa933d (patch) | |
| tree | d3faf83663c1383f7ea16a0e6c68b3e2f4cc968a /src/setjmp/powerpc/longjmp.s | |
| parent | 7669d1e334e6b96455eece78da43bf830b93d697 (diff) | |
| download | musl-1c8eb8bad791fe9d01d0d4ab77882db634fa933d.tar.gz | |
PPC port cleaned up, static linking works well now.
Diffstat (limited to 'src/setjmp/powerpc/longjmp.s')
| -rw-r--r-- | src/setjmp/powerpc/longjmp.s | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/setjmp/powerpc/longjmp.s b/src/setjmp/powerpc/longjmp.s new file mode 100644 index 00000000..e3740901 --- /dev/null +++ b/src/setjmp/powerpc/longjmp.s @@ -0,0 +1,47 @@ + .global _longjmp + .global longjmp + .type _longjmp,@function + .type longjmp,@function +_longjmp: +longjmp: +# void longjmp(jmp_buf env, int val); +# put val into return register and restore the env saved in setjmp +# if val(r4) is 0, put 1 there. + # 0) move old return address into r0 + lwz 0, 0(3) + # 1) put it into link reg + mtlr 0 + #2 ) restore stack ptr + lwz 1, 4(3) + #3) restore control reg + lwz 0, 8(3) + mtcr 0 + #4) restore r14-r31 + lwz 14, 12(3) + lwz 15, 16(3) + lwz 16, 20(3) + lwz 17, 24(3) + lwz 18, 28(3) + lwz 19, 32(3) + lwz 20, 36(3) + lwz 21, 40(3) + lwz 22, 44(3) + lwz 23, 48(3) + lwz 24, 52(3) + lwz 25, 56(3) + lwz 26, 60(3) + lwz 27, 64(3) + lwz 28, 68(3) + lwz 29, 72(3) + lwz 30, 76(3) + lwz 31, 80(3) + #5) put val into return reg r3 + mr 3, 4 + + #6) check if return value is 0, make it 1 in that case + cmpwi cr7, 4, 0 + bne cr7, 1f + li 3, 1 +1: + blr + |