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Author SHA1 Message Date
Alexey Samsonov 4d075df406 [Sanitizer] Add basic support for using libbacktrace in symbolizer. 
This change allows to compile sanitizer sources so that *san runtime
will attempt to use libbacktrace and/or libiberty for symbolization
(instead of communicating with llvm-symbolizer).

I've tested this patch by manually defining SANITIZER_LIBBACKTRACE and/or
SANITIZER_CP_DEMANGLE, linking with necessary libraries and verifying that
all tests from ASan test suite work.

Based on patches by Jakub Jelinek!

llvm-svn: 199384
 2014-01-16 13:48:15 +00:00
Chandler Carruth 3f697191bb Revert a final patch that was committed without the author contributing 
it to the LLVM project through the appropriate channels.

This reverts:
r195837: "[Sanitizer] Add rudimentary support for using libbacktrace in ..."

llvm-svn: 196875
 2013-12-10 04:40:39 +00:00
Alexey Samsonov 1c256cbcc4 [Sanitizer] Add rudimentary support for using libbacktrace in symbolizer. 
More steps are needed to actually make it usable:
* sanitizer runtimes should be compiled with -DSANITIZER_LIBBACKTRACE.
* libbacktrace headers should be installed.
* user has to manually link in libbacktrace.a into the executable.

We can easily solve the first two problems in the build system, but
detecting/linking libbacktrace to all the tests we have and end-user programs
is more challenging (and will unlikely work w/o Driver support).

Based on the patch by Jakub Jelinek!

llvm-svn: 195837
 2013-11-27 11:46:58 +00:00