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| author | Alan Modra <amodra@bigpond.net.au> | 2008-03-01 06:52:32 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@bigpond.net.au> | 2008-03-01 06:52:32 +0000 |
| commit | 1ad2d585091bec2b467e03825cf4797937f300fc (patch) | |
| tree | f24753c57e6900a217109f1c0fc50c182a1e453b /bfd/elf32-ppc.c | |
| parent | b43fdf288c9e4194734e7bbb214e6ff218a50374 (diff) | |
| download | gdb-1ad2d585091bec2b467e03825cf4797937f300fc.tar.gz | |
* elf64-ppc.c (build_plt_stub): Add relocs on plt call stubs
if emitrelocations.
(get_relocs): New function, split out from..
(ppc_build_one_stub): ..here. Add relocs on plt_branch stubs if
emitrelocations. Remove indx temp.
(ppc_size_one_stub): Count new stub relocs.
(ppc64_elf_size_stubs): Count new glink reloc.
(ppc64_elf_build_stubs): Emit glink reloc if emitrelocations.
(ppc64_elf_finish_dynamic_sections): Output glink relocs.
* elf32-ppc.c (ppc_elf_finish_dynamic_sections): Describe non-pic
glink code.
ld/testsuite/
* ld-powerpc/relbrlt.d: Update. Also check .branch_lt section.
Diffstat (limited to 'bfd/elf32-ppc.c')
| -rw-r--r-- | bfd/elf32-ppc.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 5e81a2f20e1..47a2e79169f 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -7534,7 +7534,7 @@ ppc_elf_finish_dynamic_sections (bfd *output_bfd, * bctr * * # A table of branches, one for each plt entry. - * # The idea is that the plt call stub loads ctr (and r11) with these + * # The idea is that the plt call stub loads ctr and r11 with these * # addresses, so (r11 - res_0) gives the plt index * 4. * res_0: b PLTresolve * res_1: b PLTresolve @@ -7580,6 +7580,28 @@ ppc_elf_finish_dynamic_sections (bfd *output_bfd, NOP }; + /* + * Non-PIC glink code is a little simpler. + * + * # ith PLT code stub. + * lis 11,(plt+(i-1)*4)@ha + * lwz 11,(plt+(i-1)*4)@l(11) + * mtctr 11 + * bctr + * + * The branch table is the same, then comes + * + * PLTresolve: + * lis 12,(got+4)@ha + * addis 11,11,(-res_0)@ha + * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve + * addi 11,11,(-res_0)@l # r11 = index * 4 + * mtctr 0 + * add 0,11,11 + * lwz 12,(got+8)@l(12) # got[2] contains the map address + * add 11,0,11 # r11 = index * 12 = reloc offset. + * bctr + */ static const unsigned int plt_resolve[] = { LIS_12, |