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Tweak clang sanitizer blacklist for out-of-tree builds, make, ccache
Avoid using file names and file paths for compatibility with out-of-tree builds. Note make and ccache don't track blacklist dependencies, add workarounds.
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@ -29,6 +29,9 @@
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# It has not been tested with ThreadSanitizer or MemorySanitizer
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# Success report and patches for other sanitizers or OSs are welcome
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# ccache and make don't account for the sanitizer blacklist as a dependency
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# you might need to set CCACHE_DISABLE=1 and/or use make clean to workaround
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# Configuration Flags:
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# -fno-sanitize-recover=all
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# causes clang to crash on undefined behavior, rather than printing
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@ -67,23 +70,23 @@
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# Blacklist Entries:
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# test-memwipe.c checks if a freed buffer was properly wiped
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fun:vmemeq
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fun:check_a_buffer
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# we need to allow the tor bt handler to catch SIGSEGV
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# otherwise address sanitizer munges the expected output and the test fails
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# we can do this by setting an environmental variable
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# See https://code.google.com/p/address-sanitizer/wiki/Flags
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# ASAN_OPTIONS=allow_user_segv_handler=1
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# test-memwipe.c checks if a freed buffer was properly wiped
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fun:vmemeq
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fun:check_a_buffer
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# test_bt_cl.c stores to a NULL pointer to trigger a crash
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fun:crash
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# curve25519-donna.c left-shifts 1 bits into and past the sign bit of signed
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# integers. Until #13538 is resolved, we can exempt the entire file from all
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# analysis under clang's undefined behavior sanitizer.
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# This may be overkill, but it works, and is easier than listing every
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# function in the file.
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# integers. Until #13538 is resolved, we exempt functions that do left shifts.
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# Note that x86_64 uses curve25519-donna-c64.c instead of curve25519-donna.c
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src:src/ext/curve25519_donna/curve25519-donna.c
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fun:freduce_coefficients
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fun:freduce_degree
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fun:s32_eq
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fun:fcontract
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