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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 | |
| parent | 7669d1e334e6b96455eece78da43bf830b93d697 (diff) | |
| download | musl-1c8eb8bad791fe9d01d0d4ab77882db634fa933d.tar.gz musl-1c8eb8bad791fe9d01d0d4ab77882db634fa933d.tar.xz musl-1c8eb8bad791fe9d01d0d4ab77882db634fa933d.zip | |
PPC port cleaned up, static linking works well now.
Diffstat (limited to 'src/setjmp/powerpc')
| -rw-r--r-- | src/setjmp/powerpc/longjmp.s | 47 | ||||
| -rw-r--r-- | src/setjmp/powerpc/setjmp.s | 40 |
2 files changed, 87 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 + diff --git a/src/setjmp/powerpc/setjmp.s b/src/setjmp/powerpc/setjmp.s new file mode 100644 index 00000000..27c975e4 --- /dev/null +++ b/src/setjmp/powerpc/setjmp.s @@ -0,0 +1,40 @@ + .global __setjmp + .global _setjmp + .global setjmp + .type __setjmp,@function + .type _setjmp,@function + .type setjmp,@function +__setjmp: +_setjmp: +setjmp: + # 0) store IP int 0, then into the jmpbuf pointed to by r3 (first arg) + mflr 0 + stw 0, 0(3) + # 1) store reg1 (SP) + stw 1, 4(3) + # 2) store cr + mfcr 0 + stw 0, 8(3) + # 3) store r14-31 + stw 14, 12(3) + stw 15, 16(3) + stw 16, 20(3) + stw 17, 24(3) + stw 18, 28(3) + stw 19, 32(3) + stw 20, 36(3) + stw 21, 40(3) + stw 22, 44(3) + stw 23, 48(3) + stw 24, 52(3) + stw 25, 56(3) + stw 26, 60(3) + stw 27, 64(3) + stw 28, 68(3) + stw 29, 72(3) + stw 30, 76(3) + stw 31, 80(3) + # 4) set return value to 0 + li 3, 0 + # 5) return + blr |