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author | Alan Modra <amodra@gmail.com> | 2007-05-02 13:44:37 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2007-05-02 13:44:37 +0000 |
commit | 627b32bcf9eadc335b8c07f7cf8ea7155ef15fbd (patch) | |
tree | d5699c6c907692bc6530872e60fc2e3564792f80 /bfd/elf.c | |
parent | 2afd3f0adc4f70d8d5bd4bc57a6eb53542edf66f (diff) | |
download | gdb-627b32bcf9eadc335b8c07f7cf8ea7155ef15fbd.zip gdb-627b32bcf9eadc335b8c07f7cf8ea7155ef15fbd.tar.gz gdb-627b32bcf9eadc335b8c07f7cf8ea7155ef15fbd.tar.bz2 |
include/elf/
* internal.h (ELF_IS_SECTION_IN_SEGMENT): Check both file offset
and vma for appropriate sections.
bfd/
* elf.c (assign_file_positions_for_load_sections): Set sh_offset
here. Set sh_type to SHT_NOBITS if we won't be allocating
file space. Don't bump p_memsz for non-alloc sections. Adjust
section-in-segment check.
(assign_file_positions_for_non_load_sections): Don't set sh_offset
here for sections that have already been handled above.
Diffstat (limited to 'bfd/elf.c')
-rw-r--r-- | bfd/elf.c | 28 |
1 files changed, 19 insertions, 9 deletions
@@ -4511,6 +4511,7 @@ assign_file_positions_for_load_sections (bfd *abfd, asection *sec; flagword flags; bfd_size_type align; + Elf_Internal_Shdr *this_hdr; sec = *secpp; flags = sec->flags; @@ -4543,13 +4544,14 @@ assign_file_positions_for_load_sections (bfd *abfd, } } + this_hdr = &elf_section_data (sec)->this_hdr; if (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core) { /* The section at i == 0 is the one that actually contains everything. */ if (i == 0) { - sec->filepos = off; + this_hdr->sh_offset = sec->filepos = off; off += sec->size; p->p_filesz = sec->size; p->p_memsz = 0; @@ -4568,7 +4570,7 @@ assign_file_positions_for_load_sections (bfd *abfd, { if (p->p_type == PT_LOAD) { - sec->filepos = off + voff; + this_hdr->sh_offset = sec->filepos = off + voff; /* FIXME: The SEC_HAS_CONTENTS test here dates back to 1997, and the exact reason for it isn't clear. One plausible explanation is that it is to work around @@ -4586,12 +4588,22 @@ assign_file_positions_for_load_sections (bfd *abfd, if ((flags & SEC_LOAD) != 0 || (flags & SEC_HAS_CONTENTS) != 0) off += sec->size; + else + /* If we aren't making room for this section, then + it must be SHT_NOBITS regardless of what we've + set via struct bfd_elf_special_section. */ + this_hdr->sh_type = SHT_NOBITS; } if ((flags & SEC_LOAD) != 0) { p->p_filesz += sec->size; - p->p_memsz += sec->size; + /* SEC_LOAD without SEC_ALLOC is a weird combination + used by note sections to signify that a PT_NOTE + segment should be created. These take file space + but are not actually loaded into memory. */ + if ((flags & SEC_ALLOC) != 0) + p->p_memsz += sec->size; } /* .tbss is special. It doesn't contribute to p_memsz of @@ -4629,11 +4641,9 @@ assign_file_positions_for_load_sections (bfd *abfd, } } - /* Check if all sections are in the segment. Skip PT_GNU_RELRO - and PT_NOTE segments since they will be processed by - assign_file_positions_for_non_load_sections later. */ - if (p->p_type != PT_GNU_RELRO - && p->p_type != PT_NOTE) + /* Check that all sections are in the segment. */ + if (p->p_type == PT_LOAD + || (p->p_type == PT_NOTE && bfd_get_format (abfd) == bfd_core)) for (i = 0, secpp = m->sections; i < m->count; i++, secpp++) { Elf_Internal_Shdr *this_hdr; @@ -4689,7 +4699,7 @@ assign_file_positions_for_non_load_sections (bfd *abfd, && (hdr->bfd_section->filepos != 0 || (hdr->sh_type == SHT_NOBITS && hdr->contents == NULL))) - hdr->sh_offset = hdr->bfd_section->filepos; + BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos); else if ((hdr->sh_flags & SHF_ALLOC) != 0) { if (hdr->sh_size != 0) |