Comment #6 on issue 313 by [email protected]: [libsanitizer] Fallback to
llvm-symbolizer in PATH
http://code.google.com/p/address-sanitizer/issues/detail?id=313
I disagree with #4. ASAN_OPTIONS=external_symbolizer_path should have a
higher priority than whatever llvm-symbolizer we find in PATH, because
ASAN_OPTIONS are overridable by user. Suppose that the user wants to run
his code with a new version of llvm-symbolizer and runs:
ASAN_OPTIONS=external_symbolizer_path=my/shiny/new/llvm-symolizer ./a.out
(note that missing "b" in llvm-symbolizer). We should fail hard in this
case (hey, the path you've provided is wrong!) rather than silently
fallback to symbolizer in $PATH.
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