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| author | Joshua Oreman <oremanj@hudson-trading.com> | 2019-05-11 07:27:10 +0800 |
|---|---|---|
| committer | Cary Coutant <ccoutant@gmail.com> | 2019-05-11 07:27:10 +0800 |
| commit | e173ea00c2941af42ea4e2267446d6039a70da6e (patch) | |
| tree | c4e71d797a234be5ce51cc9e18c3d922384e7a7e /gold/gc.h | |
| parent | 1367480341749b1498a6c5e7a7b79c7a4ab4ed34 (diff) | |
| download | binutils-gdb-e173ea00c2941af42ea4e2267446d6039a70da6e.tar.gz | |
Fix problem with ICF where diffs in EH frame info is ignored.
PR gold/21066
* gc.h (gc_process_relocs): Track relocations in .eh_frame sections
when ICF is enabled, even though the .eh_frame sections themselves
are not foldable.
* icf.cc (get_section_contents): Change arguments to permit operation
on just part of a section. Include extra identity regions in the
referring section's contents recursively.
(match_sections): Lock object here instead of in get_section_contents
so that get_section_contents can operate recursively.
(Icf::add_ehframe_links): New method.
(Icf::find_identical_sections): Pass .eh_frame sections to
add_ehframe_links(). Increase default iteration count from 2 to 3
because handling exception info typically requires one extra iteration.
* icf.h (Icf::extra_identity_list_): New data member with accessor.
(is_section_foldable_candidate): Include .gcc_except_table sections.
* options.h: Update documentation for new default ICF iteration count.
* testsuite/Makefile.am (icf_test_pr21066): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/icf_test_pr21066.cc: New source file.
* testsuite/icf_test_pr21066.sh: New test script.
Diffstat (limited to 'gold/gc.h')
| -rw-r--r-- | gold/gc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gold/gc.h b/gold/gc.h index 8dd0fc5dfd3..5f60934487f 100644 --- a/gold/gc.h +++ b/gold/gc.h @@ -200,7 +200,8 @@ gc_process_relocs( bool check_section_for_function_pointers = false; if (parameters->options().icf_enabled() - && is_section_foldable_candidate(src_section_name.c_str())) + && (is_section_foldable_candidate(src_section_name) + || is_prefix_of(".eh_frame", src_section_name.c_str()))) { is_icf_tracked = true; Section_id src_id(src_obj, src_indx); |