diff options
| author | Eric Andersen <andersen@codepoet.org> | 2002-08-08 14:35:49 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2002-08-08 14:35:49 +0000 |
| commit | 9cba52f0aedbb95671e8a14e3fd5ff98381ff2b0 (patch) | |
| tree | dd82b29998103d7d8ba34351e6fc3a12dc0ed7ac /ldso/ldso/sh/resolve.S | |
| parent | 4c69b9f793fc1eae9190d8ba26dba25db616272f (diff) | |
Patch from Stefan Allius and Edie C. Dost to add SuperH
shared library support. This also adds some cleaner error
handling, which I (Erik) then ported over to x86 and arm.
In addition Stefan added the following fixes:
- in hash.c was the lvalue handling of global library functions wrong.
To fix this I had to change the prototype of _dl_find_hash. (==> TIS and
ELF spec. Vers. 1.2)
- in ldso.c was the order of the .init sections calls wrong. Before we call
the initialization code of a library we have to check that all dependend
libraries are already initialized. This can easily made by calling it in the
revers loading order. For this I added a previous pointer chain.
- in ldso.c the ELF magics wasn't checked fo PPC, MIPS and SH architecture
Diffstat (limited to 'ldso/ldso/sh/resolve.S')
| -rw-r--r-- | ldso/ldso/sh/resolve.S | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/ldso/ldso/sh/resolve.S b/ldso/ldso/sh/resolve.S new file mode 100644 index 000000000..4d8eee6c2 --- /dev/null +++ b/ldso/ldso/sh/resolve.S @@ -0,0 +1,69 @@ +/* + * Stolen from glibc-2.2.2 by Eddie C. Dost <ecd@atecom.com> + */ + + .text + .globl _dl_linux_resolve + .type _dl_linux_resolve, @function + .balign 16 +_dl_linux_resolve: + mov.l r3, @-r15 + mov.l r4, @-r15 + mov.l r5, @-r15 + mov.l r6, @-r15 + mov.l r7, @-r15 + mov.l r12, @-r15 + movt r3 ! Save T flag + mov.l r3, @-r15 + +#ifdef HAVE_FPU + sts.l fpscr, @-r15 + mov #8,r3 + swap.w r3, r3 + lds r3, fpscr + fmov.s fr11, @-r15 + fmov.s fr10, @-r15 + fmov.s fr9, @-r15 + fmov.s fr8, @-r15 + fmov.s fr7, @-r15 + fmov.s fr6, @-r15 + fmov.s fr5, @-r15 + fmov.s fr4, @-r15 +#endif + sts.l pr, @-r15 + + mov r2, r4 ! link map address + + mov.l 3f, r0 + jsr @r0 ! Call resolver + mov r1, r5 ! Reloc offset + + lds.l @r15+, pr ! Get register content back + +#ifdef HAVE_FPU + fmov.s @r15+, fr4 + fmov.s @r15+, fr5 + fmov.s @r15+, fr6 + fmov.s @r15+, fr7 + fmov.s @r15+, fr8 + fmov.s @r15+, fr9 + fmov.s @r15+, fr10 + fmov.s @r15+, fr11 + lds.l @r15+, fpscr +#endif + + mov.l @r15+, r3 + shal r3 ! Load T flag + mov.l @r15+, r12 + mov.l @r15+, r7 + mov.l @r15+, r6 + mov.l @r15+, r5 + mov.l @r15+, r4 + jmp @r0 ! Jump to function address + mov.l @r15+, r3 + + .balign 4 +3: + .long _dl_linux_resolver + .size _dl_linux_resolve, . - _dl_linux_resolve + |