1 files changed, 66 insertions, 0 deletions
diff --git a/CMakeModules/ABICheck.cmake b/CMakeModules/ABICheck.cmake
new file mode 100644
index 0000000..d5f305b
--- /dev/null
+++ b/CMakeModules/ABICheck.cmake
@@ -0,0 +1,66 @@
+# 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()