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@@ -0,0 +1,50 @@
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+ #!/usr/bin/sh -ex
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+
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+ # Test the compatibility of the current libLLVM with specific versions that
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+ # have been previously generated.
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+ # The artifacts used as input in this test are maintained in this git-lfs
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+ # repo: https://gitlab.com/tuliom-rh/llvm-fedora-el-abi
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+
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+ is_fedora=`rpm -E %{fedora}`
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+ arch=`rpm -E %{_arch}`
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+
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+ case $(rpm -E %dist) in
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+ .fc*) dist_prefix=fc;;
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+ .el*) dist_prefix=el;;
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+ *) echo "Error: which distro is this ($(rpm -E %dist))?" >&2
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+ esac
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+
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+ # Download ABI dumps from previous versions.
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+ wget -q https://gitlab.com/tuliom-rh/llvm-fedora-el-abi/-/archive/main/llvm-fedora-el-abi-main.tar.gz
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+ tar xzf llvm-fedora-el-abi-main.tar.gz --strip-components=1 '*/libLLVM.*.abi.xz'
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+
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+ for f in *.abi.xz; do
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+ unxz $f
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+ done
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+
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+ abi_files=$(ls libLLVM*.$dist_prefix*.$arch.abi)
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+
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+ abi_file=libLLVM.$(rpm -q llvm-libs | sed 's/~//g').abi
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+ version=$(rpm -q --qf "%{V}-%{R}.%{ARCH}\n" llvm-libs)
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+ library=$(rpm -ql llvm-libs | grep -E 'libLLVM-.*.so' | sort | head -n 1)
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+ debuginfo=$(rpm -ql llvm-libs-debuginfo | grep -E 'libLLVM-.*\.so.*\.debug')
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+
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+ nm $debuginfo \
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+ | awk '/T _LLVM/ || /T LLVM/ { print $3 }' \
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+ | sort -u \
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+ | sed -e 's/^_//g' | cut -d ' ' -f 3 > llvm.symbols
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+
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+ # Create the ABI dump from the current version. This takes a long time.
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+ abi-dumper -quiet -symbols-list llvm.symbols \
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+ -lver $version \
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+ -skip-cxx \
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+ -public-headers /usr/include/llvm-c \
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+ --search-debuginfo=/usr/lib/debug \
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+ -o $abi_file $library
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+
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+ sed -i 's/LLVM_[0-9]\+/LLVM_NOVERSION/' $abi_file
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+
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+ for old_abi_file in $abi_files; do
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+ abi-compliance-checker -symbols-list llvm.symbols \
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+ -l libLLVM.so -old $old_abi_file -new $abi_file
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+ done
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tuliom
commented 8 months ago
This test uses abi-compliance-checker in order to compare the ABI of the
current libLLVM.so with previous versions that are stored in a separate
git-lfs repository.
This new test can take very long to complete (100 minutes on a small
VMs) and consumes far more RAM than previous tests (up to 10 GiB).