Author: pluto
Date: Thu Jun 19 15:33:22 2008
New Revision: 9815
Modified:
backtracexx/backtracexx.cpp
Log:
- temporary workaround for infinite loop in _Unwind_Backtrace.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36568
Modified: backtracexx/backtracexx.cpp
==============================================================================
--- backtracexx/backtracexx.cpp (original)
+++ backtracexx/backtracexx.cpp Thu Jun 19 15:33:22 2008
@@ -87,6 +87,23 @@
#endif
lookupSymbol( frame );
trace->push_back( frame );
+ //
+ // temporary workaround for libgcc/glibc bug:
+ // http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36568
+ //
+ static __thread _Unwind_Ptr prevIp = 0;
+ static __thread unsigned recursionDepth = 0;
+ unsigned const RecursionLimit = 8;
+ if ( prevIp == ip )
+ {
+ if ( ++recursionDepth > RecursionLimit )
+ return _URC_END_OF_STACK;
+ }
+ else
+ {
+ prevIp = ip;
+ recursionDepth = 0;
+ }
return _URC_NO_REASON;
}
}
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