diff options
Diffstat (limited to 'bfd/elf-nacl.c')
-rw-r--r-- | bfd/elf-nacl.c | 123 |
1 files changed, 63 insertions, 60 deletions
diff --git a/bfd/elf-nacl.c b/bfd/elf-nacl.c index ddac3b3..d8d67f3 100644 --- a/bfd/elf-nacl.c +++ b/bfd/elf-nacl.c @@ -235,90 +235,93 @@ nacl_modify_segment_map (bfd *abfd, struct bfd_link_info *info) proper order for the ELF rule that they must appear in ascending address order. So find the two segments we swapped before, and swap them back. */ bfd_boolean -nacl_modify_program_headers (bfd *abfd, struct bfd_link_info *info) +nacl_modify_headers (bfd *abfd, struct bfd_link_info *info) { - struct elf_segment_map **m = &elf_seg_map (abfd); - Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr; - Elf_Internal_Phdr *p = phdr; - if (info != NULL && info->user_phdrs) /* The linker script used PHDRS explicitly, so don't change what the user asked for. */ - return TRUE; - - /* Find the PT_LOAD that contains the headers (should be the first). */ - while (*m != NULL) - { - if ((*m)->p_type == PT_LOAD && (*m)->includes_filehdr) - break; - - m = &(*m)->next; - ++p; - } - - if (*m != NULL) + ; + else { - struct elf_segment_map **first_load_seg = m; - Elf_Internal_Phdr *first_load_phdr = p; - struct elf_segment_map **next_load_seg = NULL; - Elf_Internal_Phdr *next_load_phdr = NULL; - - /* Now move past that first one and find the PT_LOAD that should be - before it by address order. */ - - m = &(*m)->next; - ++p; + struct elf_segment_map **m = &elf_seg_map (abfd); + Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr; + Elf_Internal_Phdr *p = phdr; + /* Find the PT_LOAD that contains the headers (should be the first). */ while (*m != NULL) { - if (p->p_type == PT_LOAD && p->p_vaddr < first_load_phdr->p_vaddr) - { - next_load_seg = m; - next_load_phdr = p; - break; - } + if ((*m)->p_type == PT_LOAD && (*m)->includes_filehdr) + break; m = &(*m)->next; ++p; } - /* Swap their positions in the segment_map back to how they used to be. - The phdrs have already been set up by now, so we have to slide up - the earlier ones to insert the one that should be first. */ - if (next_load_seg != NULL) + if (*m != NULL) { - Elf_Internal_Phdr move_phdr; - struct elf_segment_map *first_seg = *first_load_seg; - struct elf_segment_map *next_seg = *next_load_seg; - struct elf_segment_map *first_next = first_seg->next; - struct elf_segment_map *next_next = next_seg->next; + struct elf_segment_map **first_load_seg = m; + Elf_Internal_Phdr *first_load_phdr = p; + struct elf_segment_map **next_load_seg = NULL; + Elf_Internal_Phdr *next_load_phdr = NULL; + + /* Now move past that first one and find the PT_LOAD that should be + before it by address order. */ - if (next_load_seg == &first_seg->next) + m = &(*m)->next; + ++p; + + while (*m != NULL) { - *first_load_seg = next_seg; - next_seg->next = first_seg; - first_seg->next = next_next; + if (p->p_type == PT_LOAD && p->p_vaddr < first_load_phdr->p_vaddr) + { + next_load_seg = m; + next_load_phdr = p; + break; + } + + m = &(*m)->next; + ++p; } - else + + /* Swap their positions in the segment_map back to how they + used to be. The phdrs have already been set up by now, + so we have to slide up the earlier ones to insert the one + that should be first. */ + if (next_load_seg != NULL) { - *first_load_seg = first_next; - *next_load_seg = next_next; + Elf_Internal_Phdr move_phdr; + struct elf_segment_map *first_seg = *first_load_seg; + struct elf_segment_map *next_seg = *next_load_seg; + struct elf_segment_map *first_next = first_seg->next; + struct elf_segment_map *next_next = next_seg->next; - first_seg->next = *next_load_seg; - *next_load_seg = first_seg; + if (next_load_seg == &first_seg->next) + { + *first_load_seg = next_seg; + next_seg->next = first_seg; + first_seg->next = next_next; + } + else + { + *first_load_seg = first_next; + *next_load_seg = next_next; - next_seg->next = *first_load_seg; - *first_load_seg = next_seg; - } + first_seg->next = *next_load_seg; + *next_load_seg = first_seg; - move_phdr = *next_load_phdr; - memmove (first_load_phdr + 1, first_load_phdr, - (next_load_phdr - first_load_phdr) * sizeof move_phdr); - *first_load_phdr = move_phdr; + next_seg->next = *first_load_seg; + *first_load_seg = next_seg; + } + + move_phdr = *next_load_phdr; + memmove (first_load_phdr + 1, first_load_phdr, + (next_load_phdr - first_load_phdr) * sizeof move_phdr); + *first_load_phdr = move_phdr; + } } } - return TRUE; + return _bfd_elf_modify_headers (abfd, info); } bfd_boolean |