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| author | Rich Felker <dalias@aerifal.cx> | 2015-09-12 02:50:28 +0000 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2015-09-12 02:50:28 +0000 |
| commit | ad5d8a2bf3526bce4317055612709ac076b5c4c3 (patch) | |
| tree | 015d43a66be3e775c5c79171dc85ea814b98e7fb /crt | |
| parent | 17cdbc4e427fd4f9cfdecb455294245732cbb36f (diff) | |
| download | musl-ad5d8a2bf3526bce4317055612709ac076b5c4c3.tar.gz musl-ad5d8a2bf3526bce4317055612709ac076b5c4c3.tar.xz musl-ad5d8a2bf3526bce4317055612709ac076b5c4c3.zip | |
make sh crti/crtn init/fini fragments setup proper stack frame
for fdpic support is is essential that the got pointer be saved at a known, ABI-dictated offset from the frame pointer, since there is no way to recover it once it's lost.
Diffstat (limited to 'crt')
| -rw-r--r-- | crt/sh/crti.s | 8 | ||||
| -rw-r--r-- | crt/sh/crtn.s | 8 |
2 files changed, 14 insertions, 2 deletions
diff --git a/crt/sh/crti.s b/crt/sh/crti.s index 0410ab63..d99bfd5c 100644 --- a/crt/sh/crti.s +++ b/crt/sh/crti.s @@ -2,12 +2,20 @@ .global _init .type _init, @function _init: + add #-4, r15 + mov.l r12, @-r15 + mov.l r14, @-r15 sts.l pr, @-r15 + mov r15, r14 nop .section .fini .global _fini .type _fini, @function _fini: + add #-4, r15 + mov.l r12, @-r15 + mov.l r14, @-r15 sts.l pr, @-r15 + mov r15, r14 nop diff --git a/crt/sh/crtn.s b/crt/sh/crtn.s index dde633b0..958ce951 100644 --- a/crt/sh/crtn.s +++ b/crt/sh/crtn.s @@ -1,9 +1,13 @@ .section .init lds.l @r15+, pr + mov.l @r15+, r14 + mov.l @r15+, r12 rts - nop + add #4, r15 .section .fini lds.l @r15+, pr + mov.l @r15+, r14 + mov.l @r15+, r12 rts - nop + add #4, r15 |