diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-01 10:31:41 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-01 10:31:41 +0100 |
| commit | ed9e9f98e9cc502c72b27c68612e9e187ec11e10 (patch) | |
| tree | 42901d0156503dadce4bf1f0b60e9ef850c3c5e0 /sys/src/ape/lib/ap/amd64/setjmp.s | |
| parent | d4fb753c9c90e0ca745a1b3708ad3ec4ca523e71 (diff) | |
libc and ape support for amd64
Diffstat (limited to 'sys/src/ape/lib/ap/amd64/setjmp.s')
| -rw-r--r-- | sys/src/ape/lib/ap/amd64/setjmp.s | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sys/src/ape/lib/ap/amd64/setjmp.s b/sys/src/ape/lib/ap/amd64/setjmp.s new file mode 100644 index 000000000..67320cad9 --- /dev/null +++ b/sys/src/ape/lib/ap/amd64/setjmp.s @@ -0,0 +1,27 @@ +TEXT longjmp(SB), $0 + MOVL r+8(FP), AX + CMPL AX, $0 + JNE ok /* ansi: "longjmp(0) => longjmp(1)" */ + MOVL $1, AX /* bless their pointed heads */ +ok: + MOVQ 0(RARG), SP /* restore sp */ + MOVQ 8(RARG), BX /* put return pc on the stack */ + MOVQ BX, 0(SP) + RET + +TEXT setjmp(SB), $0 + MOVQ SP, 0(RARG) /* store sp */ + MOVQ 0(SP), BX /* store return pc */ + MOVQ BX, 8(RARG) + MOVL $0, AX /* return 0 */ + RET + +TEXT sigsetjmp(SB), $0 + MOVL savemask+8(FP), BX + MOVL BX, 0(RARG) + MOVL $_psigblocked(SB), 4(RARG) + MOVQ SP, 8(RARG) /* store sp */ + MOVQ 0(SP), BX /* store return pc */ + MOVQ BX, 16(RARG) + MOVL $0, AX /* return 0 */ + RET |