From ad5d8a2bf3526bce4317055612709ac076b5c4c3 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Sep 2015 02:50:28 +0000 Subject: [PATCH] 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. --- crt/sh/crti.s | 8 ++++++++ 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 -- 2.25.1