diff options
Diffstat (limited to 'bfd/elflink.h')
| -rw-r--r-- | bfd/elflink.h | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/bfd/elflink.h b/bfd/elflink.h index b960c73..64554e7 100644 --- a/bfd/elflink.h +++ b/bfd/elflink.h @@ -5005,9 +5005,9 @@ elf_link_input_bfd (finfo, input_bfd) from discarded sections and section symbols from removed link-once sections. Complain about relocs against discarded sections. Zero relocs against removed - link-once sections. */ - if (!finfo->info->relocateable - && !elf_section_ignore_discarded_relocs (o)) + link-once sections. Preserve debug information as much + as we can. */ + if (!elf_section_ignore_discarded_relocs (o)) { Elf_Internal_Rela *rel, *relend; @@ -5016,6 +5016,7 @@ elf_link_input_bfd (finfo, input_bfd) for ( ; rel < relend; rel++) { unsigned long r_symndx = ELF_R_SYM (rel->r_info); + asection *sec; if (r_symndx >= locsymcount || (elf_bad_symtab (input_bfd) @@ -5030,14 +5031,22 @@ elf_link_input_bfd (finfo, input_bfd) /* Complain if the definition comes from a discarded section. */ + sec = h->root.u.def.section; if ((h->root.type == bfd_link_hash_defined || h->root.type == bfd_link_hash_defweak) - && elf_discarded_section (h->root.u.def.section)) + && elf_discarded_section (sec)) { if ((o->flags & SEC_DEBUGGING) != 0) { BFD_ASSERT (r_symndx != 0); - memset (rel, 0, sizeof (*rel)); + /* Try to preserve debug information. */ + if ((o->flags & SEC_DEBUGGING) != 0 + && sec->kept_section != NULL + && sec->_cooked_size == sec->kept_section->_cooked_size) + h->root.u.def.section + = sec->kept_section; + else + memset (rel, 0, sizeof (*rel)); } else finfo->info->callbacks->error_handler @@ -5051,7 +5060,7 @@ elf_link_input_bfd (finfo, input_bfd) } else { - asection *sec = finfo->sections[r_symndx]; + sec = finfo->sections[r_symndx]; if (sec != NULL && elf_discarded_section (sec)) { @@ -5059,9 +5068,18 @@ elf_link_input_bfd (finfo, input_bfd) || (sec->flags & SEC_LINK_ONCE) != 0) { BFD_ASSERT (r_symndx != 0); - rel->r_info - = ELF_R_INFO (0, ELF_R_TYPE (rel->r_info)); - rel->r_addend = 0; + /* Try to preserve debug information. */ + if ((o->flags & SEC_DEBUGGING) != 0 + && sec->kept_section != NULL + && sec->_cooked_size == sec->kept_section->_cooked_size) + finfo->sections[r_symndx] + = sec->kept_section; + else + { + rel->r_info + = ELF_R_INFO (0, ELF_R_TYPE (rel->r_info)); + rel->r_addend = 0; + } } else { |