diff options
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 0e4bb2e..00ed5d1 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -2135,7 +2135,17 @@ pointer: as pointer, make sure that PLT is used if foo is a function defined in a shared library. */ if ((sec->flags & SEC_CODE) == 0) - h->pointer_equality_needed = 1; + { + h->pointer_equality_needed = 1; + if (bfd_link_pie (info) + && h->type == STT_FUNC + && !h->def_regular + && h->def_dynamic) + { + h->needs_plt = 1; + h->plt.refcount = 1; + } + } } else if (r_type != R_X86_64_PC32_BND && r_type != R_X86_64_PC64) @@ -2173,7 +2183,7 @@ pointer: size_reloc = FALSE; do_size: - if (NEED_DYNAMIC_RELOCATION_P (info, h, sec, r_type, + if (NEED_DYNAMIC_RELOCATION_P (info, TRUE, h, sec, r_type, htab->pointer_r_type)) { struct elf_dyn_relocs *p; @@ -2968,6 +2978,7 @@ do_ifunc_pointer: break; } +use_plt: if (h->plt.offset != (bfd_vma) -1) { if (htab->plt_second != NULL) @@ -3046,6 +3057,15 @@ do_ifunc_pointer: return elf_x86_64_need_pic (info, input_bfd, input_section, h, NULL, NULL, howto); } + /* Since x86-64 has PC-relative PLT, we can use PLT in PIE + as function address. */ + else if (h != NULL + && (input_section->flags & SEC_CODE) == 0 + && bfd_link_pie (info) + && h->type == STT_FUNC + && !h->def_regular + && h->def_dynamic) + goto use_plt; /* Fall through. */ case R_X86_64_8: |