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Undefined Behavior Sanitizer Link Failure #38

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marquitos0119 opened this issue Sep 7, 2022 · 1 comment
Open

Undefined Behavior Sanitizer Link Failure #38

marquitos0119 opened this issue Sep 7, 2022 · 1 comment

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@marquitos0119
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When using ubsan: -fsanitize=undefined, the final build of cryptofuzz fails due to a linker failure. The workaround that has solved this for me is to manually link with -lubsan. However, this is not the recommended action

When taking the recommended approach (linking with Wl,-fsanitize=undefined) I see runtime errors, so I just wanted to share what's worked for me in case others also encounter it.
@kestrelrin
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Can I checking if the command to enter is
export CFLAGS="-fsanitize=address,fuzzer-no-link -O2 -g -lubsan" and
export CXXFLAGS="-fsanitize=address,fuzzer-no-link -D_GLIBCXX_DEBUG -O2 -g -lubsan"?
I have used this command but the modules cannot be compiled

@moz-mdauer moz-mdauer mentioned this issue Nov 2, 2024
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@marquitos0119 @kestrelrin