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And check that LIB_FUZZING_ENGINE is set during configure.
Because:
1. It's easier to build locally this way (you don't need to build or hack a
libFuzzingEngine.a - instead you can just specify
LIB_FUZZING_ENGINE=-fsanitize=fuzzer to produce a valid build).
2. Using -lFuzzingEngine is deprecated [1] for various reasons [2].
The old behaviour can be emulated if desired by setting
LIB_FUZZING_ENGINE=-lFuzzingEngine .
This patch was tested as follows:
- Building LO within oss-fuzz via:
python infra/helper.py build_fuzzers --sanitizer address libreoffice </path/to/patched-libreoffice-core>
python infra/helper.py check_build libreoffice
- Building LO fuzzers standalone via:
export CC="clang-11"
export CXX="clang++-11 -stdlib=libc++"
export CFLAGS="-fsanitize=address -fsanitize-address-use-after-scope -fsanitize=fuzzer-no-link -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
export CXXFLAGS="$CFLAGS -stdlib=libc++"
export LDFLAGS="$CFLAGS -Wl,--compress-debug-sections,zlib -lpthread"
export LIB_FUZZING_ENGINE=-fsanitize=fuzzer
./autogen.sh --with-distro=LibreOfficeOssFuzz --with-system-libxml
make fuzzers
(--with-system-libxml only appears to be needed because of issues
specific to my build environment/Suse 15.2. I'm invoking clang-11 simply
because that's the most modern clang I have installed, plain clang should
also work on most sufficiently modern systems).
[1]
https://github.com/google/oss-fuzz/blob/481280c65048fd12fb2141b9225af511a9ef7ed2/infra/presubmit.py#L46
[2] https://github.com/google/oss-fuzz/issues/2164
Change-Id: Iddb577c30a39620e72372ef6c2d3fda67f8aabdf
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/111691
Tested-by: Jenkins
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
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Change-Id: I59c5499586c16768afde822cd6d580540d1bcd73
Reviewed-on: https://gerrit.libreoffice.org/58764
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
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This reverts commit 111db5b992ae5870e76313f76e633a4edcccf010.
Change-Id: I1138592ab54865f4c2ac4599fab572c5666bf723
Reviewed-on: https://gerrit.libreoffice.org/46864
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
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still not ready after all
This reverts commit 6fc7f85de7f0bfa8ee36f867e321a8816ad1e385.
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Change-Id: I03a61421c477642548d9814610faeb570bd34c8d
Reviewed-on: https://gerrit.libreoffice.org/45970
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
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