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| author | Fangrui Song <maskray@google.com> | 2018-11-13 08:43:07 +0000 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2018-11-13 08:43:07 +0000 |
| commit | 9596848037a2473f59404c4e01a09105ceaf7fc3 (patch) | |
| tree | ccd52d83ada71e3604f8976e50183b6022154b03 /clang/docs | |
| parent | f9b2b5e67e46ada55ada74580e2939027d6f11eb (diff) | |
[ELF] .gdb_index: fix CuOff when a .debug_info section contains more than 1 DW_TAG_compile_unit
Summary:
Idx passed to readPubNamesAndTypes was an index into Chunks, not an
index into the CU list. This would be incorrect if some .debug_info
section contained more than 1 DW_TAG_compile_unit.
In real world, glibc Scrt1.o is a partial link of start.os abi-note.o init.o and contains 2 CUs in debug builds.
Without this patch, any application linking such Scrt1.o would have invalid .gdb_index
The issue could be demonstrated by:
(gdb) py print(gdb.lookup_global_symbol('main'))
None
Reviewers: espindola, ruiu
Reviewed By: ruiu
Subscribers: Higuoxing, grimar, dblaikie, emaste, aprantl, arichardson, JDevlieghere, arphaman, llvm-commits
Differential Revision: https://reviews.llvm.org/D54361
llvm-svn: 346747
Diffstat (limited to 'clang/docs')
0 files changed, 0 insertions, 0 deletions