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PR ld/10555 

* emultempl/elf32.em (_after_open): Do not create a
        .note.gnu-build-id section if there are no input files.
This commit is contained in:
Nick Clifton 2009-08-26 13:08:07 +00:00
parent 604ab327fd
commit e9e0a58e87
2 changed files with 38 additions and 21 deletions
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6
ld/ChangeLog
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@ -1,3 +1,9 @@
2009-08-26 Nick Clifton <nickc@redhat.com>
PR ld/10555
* emultempl/elf32.em (_after_open): Do not create a
.note.gnu-build-id section if there are no input files.
2009-08-24 Nick Clifton <nickc@redhat.com>
* scripttempl/elfxtensa.sc (DISCARDED): Discard sections with

53
ld/emultempl/elf32.em
View File

@ -1049,37 +1049,48 @@ gld${EMULATION_NAME}_after_open (void)
abfd = link_info.input_bfds;
size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info);
if (size == 0)
if (abfd == NULL)
{
einfo ("%P: warning: unrecognized --build-id style ignored.\n");
/* PR 10555: If there are no input files do not
try to create a .note.gnu-build-id section. */
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
else
{
s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id",
SEC_ALLOC | SEC_LOAD
| SEC_IN_MEMORY | SEC_LINKER_CREATED
| SEC_READONLY | SEC_DATA);
if (s != NULL && bfd_set_section_alignment (abfd, s, 2))
size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info);
if (size == 0)
{
struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
struct build_id_info *b = xmalloc (sizeof *b);
b->style = link_info.emit_note_gnu_build_id;
b->sec = s;
elf_section_type (s) = SHT_NOTE;
s->size = size;
t->after_write_object_contents
= &gld${EMULATION_NAME}_write_build_id_section;
t->after_write_object_contents_info = b;
einfo ("%P: warning: unrecognized --build-id style ignored.\n");
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
else
{
einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
" --build-id ignored.\n");
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id",
SEC_ALLOC | SEC_LOAD
| SEC_IN_MEMORY | SEC_LINKER_CREATED
| SEC_READONLY | SEC_DATA);
if (s != NULL && bfd_set_section_alignment (abfd, s, 2))
{
struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
struct build_id_info *b = xmalloc (sizeof *b);
b->style = link_info.emit_note_gnu_build_id;
b->sec = s;
elf_section_type (s) = SHT_NOTE;
s->size = size;
t->after_write_object_contents
= &gld${EMULATION_NAME}_write_build_id_section;
t->after_write_object_contents_info = b;
}
else
{
einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
" --build-id ignored.\n");
free (link_info.emit_note_gnu_build_id);
link_info.emit_note_gnu_build_id = NULL;
}
}
}
}