add some comments

This commit is contained in:
Martin Errenst 2017-08-27 17:05:39 +02:00
parent 56c32624a4
commit 7f5a8283af

View file

@ -1,15 +1,22 @@
cmake_minimum_required(VERSION 3.7.2) cmake_minimum_required(VERSION 3.7.2)
project (dump-build-information) project (dump-build-information)
add_executable(dummy dummy.cpp )
set_target_properties(dummy PROPERTIES COMPILE_FLAGS ${BUILD_FLAGS} -frecord-gcc-switches) # set build type to Release by default
set(CMAKE_BUILD_TYPE Release) set(CMAKE_BUILD_TYPE Release)
# stuff for dummy parameter extraction
add_executable(dummy dummy.cpp)
set_target_properties(dummy PROPERTIES COMPILE_FLAGS ${BUILD_FLAGS} -frecord-gcc-switches)
# put all the information into one header file
add_custom_command (OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h add_custom_command (OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
COMMAND echo \"\#define USED_FLAGS \\\"\"`readelf -p .GCC.command.line ${CMAKE_CURRENT_BINARY_DIR}/dummy | grep -v -e dummy -e "-frecord-gcc-switches" | grep -e \"\\[.*\\]\" | cut -d\\] -f2- | tr -d \"\\n\"`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h COMMAND echo \"\#define USED_FLAGS \\\"\"`readelf -p .GCC.command.line ${CMAKE_CURRENT_BINARY_DIR}/dummy | grep -v -e dummy -e "-frecord-gcc-switches" | grep -e \"\\[.*\\]\" | cut -d\\] -f2- | tr -d \"\\n\"`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
COMMAND echo \"\#define GIT_VERSION \\\"\"`git describe --dirty --always --tags`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h COMMAND echo \"\#define GIT_VERSION \\\"\"`git describe --dirty --always --tags`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
COMMAND echo \"\#define USED_COMPILER \\\"\"`${CMAKE_C_COMPILER} --version | head -n1`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h COMMAND echo \"\#define USED_COMPILER \\\"\"`${CMAKE_C_COMPILER} --version | head -n1`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
DEPENDS dummy DEPENDS dummy
) )
# add the build folder to the includes
include_directories("${CMAKE_CURRENT_BINARY_DIR}") include_directories("${CMAKE_CURRENT_BINARY_DIR}")
add_executable(dump-build-information main.cpp ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h )
# build the "real" target
add_executable(dump-build-information main.cpp ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h)