diff options
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, |