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Commit 4aa4a73f authored by Kuba Brecka's avatar Kuba Brecka
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[sanitizer] Fix a crash with DlAddrSymbolizer and unnamed symbols 

Apparently, dladdr() can succeed but return a NULL pointer, in which case strdup will crash.  Let's not call strdup on NULL pointers.

llvm-svn: 254068
parent f763027f
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