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authorAlan Modra <amodra@gmail.com>2021-01-28 10:30:36 +1030
committerAlan Modra <amodra@gmail.com>2021-01-28 18:53:30 +1030
commitdef97fb945a98544938087eff3111e16ce58da6d (patch)
tree7efaf17089a481046698eabc075a1fb6cfe0b874 /ld/ldelf.c
parent2f985dd1acf41d6b52ee2433f09a5fcc0244456a (diff)
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PR27259, SHF_LINK_ORDER self-link
This stops ld from endless looping on SHF_LINK_ORDER sh_link loops. bfd/ PR 27259 * elflink.c (_bfd_elf_gc_mark_extra_sections): Use linker_mark to prevent endless looping of linked-to sections. ld/ PR 27259 * ldelf.c (ldelf_before_place_orphans): Use linker_mark to prevent endless looping of linked-to sections.
Diffstat (limited to 'ld/ldelf.c')
-rw-r--r--ld/ldelf.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/ld/ldelf.c b/ld/ldelf.c
index 9887e53..0499925 100644
--- a/ld/ldelf.c
+++ b/ld/ldelf.c
@@ -2188,14 +2188,21 @@ ldelf_before_place_orphans (void)
been discarded. */
asection *linked_to_sec;
for (linked_to_sec = elf_linked_to_section (isec);
- linked_to_sec != NULL;
+ linked_to_sec != NULL && !linked_to_sec->linker_mark;
linked_to_sec = elf_linked_to_section (linked_to_sec))
- if (discarded_section (linked_to_sec))
- {
- isec->output_section = bfd_abs_section_ptr;
- isec->flags |= SEC_EXCLUDE;
- break;
- }
+ {
+ if (discarded_section (linked_to_sec))
+ {
+ isec->output_section = bfd_abs_section_ptr;
+ isec->flags |= SEC_EXCLUDE;
+ break;
+ }
+ linked_to_sec->linker_mark = 1;
+ }
+ for (linked_to_sec = elf_linked_to_section (isec);
+ linked_to_sec != NULL && linked_to_sec->linker_mark;
+ linked_to_sec = elf_linked_to_section (linked_to_sec))
+ linked_to_sec->linker_mark = 0;
}
}
}