diff options
Diffstat (limited to 'bfd/elf.c')
| -rw-r--r-- | bfd/elf.c | 41 |
1 files changed, 36 insertions, 5 deletions
@@ -4184,11 +4184,7 @@ _bfd_elf_map_sections_to_segments (bfd *abfd, struct bfd_link_info *info) == (SEC_LOAD | SEC_HAS_CONTENTS)) break; - if (i == (unsigned) -1) - continue; - - if (m->sections[i]->vma + m->sections[i]->size - >= info->relro_end) + if (i != (unsigned) -1) break; } } @@ -4380,6 +4376,7 @@ assign_file_positions_for_load_sections (bfd *abfd, unsigned int alloc; unsigned int i, j; bfd_vma header_pad = 0; + bfd_vma relro_start = 0, relro_end = 0; if (link_info == NULL && !_bfd_elf_map_sections_to_segments (abfd, link_info)) @@ -4450,6 +4447,23 @@ assign_file_positions_for_load_sections (bfd *abfd, header_pad -= off; off += header_pad; + /* Get start and end of PT_GNU_RELRO segment. */ + if (link_info != NULL) + { + relro_start = link_info->relro_start; + relro_end = link_info->relro_end; + } + else + { + for (m = elf_seg_map (abfd); m != NULL; m = m->next) + if (m->p_type == PT_GNU_RELRO) + { + relro_start = m->p_paddr; + relro_end = relro_start + m->p_size; + break; + } + } + for (m = elf_seg_map (abfd), p = phdrs, j = 0; m != NULL; m = m->next, p++, j++) @@ -4792,6 +4806,23 @@ assign_file_positions_for_load_sections (bfd *abfd, p->p_flags |= PF_W; } } + + if (relro_start != 0 + && p->p_type == PT_LOAD + && p->p_vaddr >= relro_start) + { + /* If PT_LOAD segment doesn't fit PT_GNU_RELRO segment, + adjust its p_filesz and p_memsz. */ + if (p->p_vaddr + p->p_filesz < relro_end) + { + bfd_vma adjust = relro_end - (p->p_vaddr + p->p_filesz); + p->p_filesz += adjust; + off += adjust; + } + if (p->p_vaddr + p->p_memsz < relro_end) + p->p_memsz += relro_end - (p->p_vaddr + p->p_memsz); + } + off -= off_adjust; /* Check that all sections are in a PT_LOAD segment. |