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-rw-r--r--bfd/ChangeLog7
-rw-r--r--bfd/elf.c23
2 files changed, 26 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 0ac0206..ef771a9 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,12 @@
2016-08-27 Alan Modra <amodra@gmail.com>
+ PR 20520
+ * elf.c (_bfd_elf_setup_sections): Check that SHT_GROUP sections
+ have corresponding SHF_GROUP sections.
+ (bfd_elf_set_group_contents): Comment.
+
+2016-08-27 Alan Modra <amodra@gmail.com>
+
PR 20519
* elf64-ppc.c (pc_dynrelocs): New function.
(ppc64_elf_relocate_section): Use it and must_be_dyn_reloc to
diff --git a/bfd/elf.c b/bfd/elf.c
index c3630d2..7d0b8a9 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -834,6 +834,14 @@ _bfd_elf_setup_sections (bfd *abfd)
elf_linked_to_section (s) = linksec;
}
}
+ else if (this_hdr->sh_type == SHT_GROUP
+ && elf_next_in_group (s) == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%B: SHT_GROUP section [index %d] has no SHF_GROUP sections"),
+ abfd, elf_section_data (s)->this_idx);
+ result = FALSE;
+ }
}
/* Process section groups. */
@@ -3403,12 +3411,19 @@ bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg)
/* The ELF backend linker sets sh_info to -2 when the group
signature symbol is global, and thus the index can't be
set until all local symbols are output. */
- asection *igroup = elf_sec_group (elf_next_in_group (sec));
- struct bfd_elf_section_data *sec_data = elf_section_data (igroup);
- unsigned long symndx = sec_data->this_hdr.sh_info;
- unsigned long extsymoff = 0;
+ asection *igroup;
+ struct bfd_elf_section_data *sec_data;
+ unsigned long symndx;
+ unsigned long extsymoff;
struct elf_link_hash_entry *h;
+ /* The point of this little dance to the first SHF_GROUP section
+ then back to the SHT_GROUP section is that this gets us to
+ the SHT_GROUP in the input object. */
+ igroup = elf_sec_group (elf_next_in_group (sec));
+ sec_data = elf_section_data (igroup);
+ symndx = sec_data->this_hdr.sh_info;
+ extsymoff = 0;
if (!elf_bad_symtab (igroup->owner))
{
Elf_Internal_Shdr *symtab_hdr;