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# generate API/ABI report
macro(LIB_ABI_CHECK LIB_TARGET LIB_HEADERS LIB_SOVERSION_FULL ABI_BASE_HASH)
# get short hash
string(SUBSTRING "${ABI_BASE_HASH}" 0 8 ABI_BASE_HASH_SHORT)
# find abi-dumper
find_program(ABI_DUMPER abi-dumper)
find_package_handle_standard_args(abi-dumper DEFAULT_MSG ABI_DUMPER)
if(NOT ABI_DUMPER)
message(FATAL_ERROR "Program abi-dumper not found!")
endif()
# find abi-checker
find_program(ABI_CHECKER abi-compliance-checker)
find_package_handle_standard_args(abi-compliance-checker DEFAULT_MSG ABI_CHECKER)
if(NOT ABI_CHECKER)
message(FATAL_ERROR "Program abi-compliance-checker not found!")
endif()
# abi-dump target - generating an ABI dump
set(PUBLIC_HEADERS ${LIB_HEADERS})
string(PREPEND PUBLIC_HEADERS "${CMAKE_SOURCE_DIR}/")
string(REPLACE ";" "\n${CMAKE_SOURCE_DIR}/" PUBLIC_HEADERS "${PUBLIC_HEADERS}")
file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/public_headers CONTENT "${PUBLIC_HEADERS}")
add_custom_target(abi-dump
COMMAND ${ABI_DUMPER} ./lib${LIB_TARGET}${CMAKE_SHARED_LIBRARY_SUFFIX}
-o lib${LIB_TARGET}.${LIB_SOVERSION_FULL}.dump
-lver ${LIB_SOVERSION_FULL} -public-headers ${CMAKE_BINARY_DIR}/public_headers
DEPENDS ${LIB_TARGET}
BYPRODUCTS ${CMAKE_BINARY_DIR}/lib${LIB_TARGET}.${LIB_SOVERSION_FULL}.dump
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
COMMENT "Dumping ABI information of version ${LIB_SOVERSION_FULL} for abi-check")
# get URL for fetching origin
execute_process(COMMAND git remote get-url origin OUTPUT_VARIABLE ORIGIN_URL OUTPUT_STRIP_TRAILING_WHITESPACE)
# generate script for generating the base ABI dump
file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/abibase.sh CONTENT "#!/bin/sh
if [ ! -d abibase ]; then mkdir abibase; fi
cd abibase
if [ ! -f build/lib${LIB_TARGET}.*.dump ]; then
if [ -d .git ] && [ \"${ABI_BASE_HASH}\" != \"`git log --pretty=oneline | cut -d' ' -f1`\" ]; then rm -rf .* 2> /dev/null; fi
if [ ! -d .git ]; then
git init --initial-branch=master
git remote add origin ${ORIGIN_URL}
git fetch origin --depth 1 ${ABI_BASE_HASH}
git reset --hard FETCH_HEAD
fi
if [ ! -d build ]; then mkdir build; fi
cd build
cmake -DCMAKE_BUILD_TYPE=ABICheck ..
make abi-dump
fi
")
# abi-check target - check ABI compatibility of current version and the base hash version
add_custom_target(abi-check
COMMAND bash ./abibase.sh
COMMAND ${ABI_CHECKER} -l lib${LIB_TARGET}${CMAKE_SHARED_LIBRARY_SUFFIX}
-old abibase/build/lib${LIB_TARGET}.*.dump
-new ./lib${LIB_TARGET}.${LIB_SOVERSION_FULL}.dump
DEPENDS ${LIB_TARGET} abi-dump
BYPRODUCTS ${CMAKE_BINARY_DIR}/compat_reports/lib${LIB_TARGET}${CMAKE_SHARED_LIBRARY_SUFFIX}/*_to_${LIB_SOVERSION_FULL}/compat_report.html
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
COMMENT "Checking ABI compatibility of version ${LIB_SOVERSION_FULL} and revision ${ABI_BASE_HASH_SHORT}")
endmacro()
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