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| author | Rich Felker <dalias@aerifal.cx> | 2011-09-18 16:44:54 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-09-18 16:44:54 -0400 |
| commit | d960d4f2cbf18ff3476c7ac03698ec253885dd8e (patch) | |
| tree | c7570054ccddf4febc86c046a0b90b3021d1a457 /src/setjmp/arm/setjmp.s | |
| parent | 4f4bf0ad2e8c729de92db06318b9614ab2cdcc5c (diff) | |
| download | musl-d960d4f2cbf18ff3476c7ac03698ec253885dd8e.tar.gz musl-d960d4f2cbf18ff3476c7ac03698ec253885dd8e.tar.xz musl-d960d4f2cbf18ff3476c7ac03698ec253885dd8e.zip | |
initial commit of the arm port
this port assumes eabi calling conventions, eabi linux syscall convention, and presence of the kernel helpers at 0xffff0f?0 needed for threads support. otherwise it makes very few assumptions, and the code should work even on armv4 without thumb support, as well as on systems with thumb interworking. the bits headers declare this a little endian system, but as far as i can tell the code should work equally well on big endian. some small details are probably broken; so far, testing has been limited to qemu/aboriginal linux.
Diffstat (limited to 'src/setjmp/arm/setjmp.s')
| -rw-r--r-- | src/setjmp/arm/setjmp.s | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/setjmp/arm/setjmp.s b/src/setjmp/arm/setjmp.s new file mode 100644 index 00000000..41e02d82 --- /dev/null +++ b/src/setjmp/arm/setjmp.s @@ -0,0 +1,17 @@ +.global __setjmp +.global _setjmp +.global setjmp +.type __setjmp,%function +.type _setjmp,%function +.type setjmp,%function +__setjmp: +_setjmp: +setjmp: + mov ip,r0 + stmia ip!,{v1,v2,v3,v4,v5,v6,sl,fp} + mov r2,sp + stmia ip!,{r2,lr} + mov r0,#0 + tst lr,#1 + moveq pc,lr + bx lr |