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[sanitizer] Fix crash on empty strings.

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Patch by Vyacheslav Chigrin.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D95431
This commit is contained in:
Evgenii Stepanov 2021-01-27 13:07:37 -08:00
parent 5d3dca24aa
commit 262c50856a
1 changed files with 1 additions and 1 deletions
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2
compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cpp
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@ -356,7 +356,7 @@ void ParseSymbolizePCOutput(const char *str, SymbolizedStack *res) {
InternalFree(info->function);
info->function = 0;
}
if (0 == internal_strcmp(info->file, "??")) {
if (info->file && 0 == internal_strcmp(info->file, "??")) {
InternalFree(info->file);
info->file = 0;
}