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| author | Tom de Vries <tdevries@suse.de> | 2019-01-25 14:39:58 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2019-01-25 14:39:58 +0000 |
| commit | c75795fa1dc29716f519ca6d1c8cccb67d0d2062 (patch) | |
| tree | 4a320ed1ce1aa49329041a5d06027e300d24ee86 /gcc | |
| parent | 37ab491dcee76e83ce32506632810b04a6045d5e (diff) | |
| download | gcc-c75795fa1dc29716f519ca6d1c8cccb67d0d2062.zip gcc-c75795fa1dc29716f519ca6d1c8cccb67d0d2062.tar.gz gcc-c75795fa1dc29716f519ca6d1c8cccb67d0d2062.tar.bz2 | |
[libbacktrace] Fix strrchr segfault
Currently, when running a libbacktrace testcase t with .gnu_debuglink to
t.debug, and t.debug having a .gnu_debugaltlink to t.alt.debug, a segfault
is triggered when calling strrchr with a NULL string from
elf_find_debugfile_by_debuglink. The NULL string originates from the elf_add
called for the .gnu_debugaltlink, which uses NULL as filename argument.
Fix this by using "" as filename argument instead.
2019-01-25 Tom de Vries <tdevries@suse.de>
* elf.c (elf_add): When handling .gnu_debugaltlink, call elf_add with
filename == "".
* Makefile.am (TESTS): Add btest_dwz_gnudebuglink.
* Makefile.in: Regenerate.
From-SVN: r268269
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions