Данная лабораторная работа посвещена изучению систем автоматизации сборки проекта на примере CMake
$ open https://cmake.org/- 1. Создать публичный репозиторий с названием lab03 на сервисе GitHub
- 2. Ознакомиться со ссылками учебного материала
- 3. Выполнить инструкцию учебного материала
- 4. Составить отчет и отправить ссылку личным сообщением в Slack
$ export GITHUB_USERNAME=scorpy2013$ mkdir -p ${GITHUB_USERNAME}/workspace
$ cd ${GITHUB_USERNAME}/workspace
$ pushd .
~/Documents/GitHub/lab03/scorpy2013/workspace ~/Documents/GitHub/lab03/scorpy2013/workspace
$ source scripts/activate$ git clone https://github.com/${GITHUB_USERNAME}/lab02.git projects/lab03
Cloning into 'projects/lab03'...
remote: Enumerating objects: 33, done.
remote: Counting objects: 100% (33/33), done.
remote: Compressing objects: 100% (31/31), done.
remote: Total 105 (delta 10), reused 5 (delta 2), pack-reused 72
Receiving objects: 100% (105/105), 1.29 MiB | 77.00 KiB/s, done.
Resolving deltas: 100% (32/32), done.
$ cd projects/lab03
$ git remote remove origin
$ git remote add origin https://github.com/${GITHUB_USERNAME}/lab03.git$ g++ -std=c++11 -I./include -c sources/print.cpp
$ ls print.o
print.o
$ nm print.o | grep print
0000000000000095 t _GLOBAL__sub_I__Z5printRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERSo
0000000000000000 T _Z5printRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERSo
0000000000000026 T _Z5printRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERSt14basic_ofstreamIcS2_E
$ ar rvs print.a print.o
ar: создаётся print.a
a - print.o
$ file print.a
print.a: current ar archive
$ g++ -std=c++11 -I./include -c examples/example1.cpp
$ ls example1.o
example1.o
$ g++ example1.o print.a -o example1
$ ./example1 && echo
hello
$ g++ -std=c++11 -I./include -c examples/example2.cpp
$ nm example2.o
U __cxa_atexit
U __dso_handle
0000000000000000 V DW.ref.__gxx_personality_v0
U _GLOBAL_OFFSET_TABLE_
0000000000000128 t _GLOBAL__sub_I_main
U __gxx_personality_v0
0000000000000000 T main
U _Unwind_Resume
00000000000000df t _Z41__static_initialization_and_destruction_0ii
U _Z5printRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERSt14basic_ofstreamIcS2_E
U _ZNSaIcEC1Ev
U _ZNSaIcED1Ev
U _ZNSt14basic_ofstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode
U _ZNSt14basic_ofstreamIcSt11char_traitsIcEED1Ev
U _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1EPKcRKS3_
U _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev
U _ZNSt8ios_base4InitC1Ev
U _ZNSt8ios_base4InitD1Ev
0000000000000000 r _ZStL19piecewise_construct
0000000000000000 b _ZStL8__ioinit
$ g++ example2.o print.a -o example2
$ ./example2
$ cat log.txt && echo
hello
$ rm -rf example1.o example2.o print.o
$ rm -rf print.a
$ rm -rf example1 example2
$ rm -rf log.txt$ cat > CMakeLists.txt <<EOF
cmake_minimum_required(VERSION 3.4)
project(print)
EOF$ cat >> CMakeLists.txt <<EOF
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
EOF$ cat >> CMakeLists.txt <<EOF
add_library(print STATIC \${CMAKE_CURRENT_SOURCE_DIR}/sources/print.cpp)
EOF$ cat >> CMakeLists.txt <<EOF
include_directories(\${CMAKE_CURRENT_SOURCE_DIR}/include)
EOF$ cmake -H. -B_build
$ cmake --build _build$ cat >> CMakeLists.txt <<EOF
add_executable(example1 \${CMAKE_CURRENT_SOURCE_DIR}/examples/example1.cpp)
add_executable(example2 \${CMAKE_CURRENT_SOURCE_DIR}/examples/example2.cpp)
EOF$ cat >> CMakeLists.txt <<EOF
target_link_libraries(example1 print)
target_link_libraries(example2 print)
EOF$ cmake --build _build
-- Configuring done
-- Generating done
-- Build files have been written to: /Documents/GitHub/scorpy2013/workspace/projects/lab03/_build
[ 33%] Built target print
Scanning dependencies of target example2
[ 50%] Building CXX object CMakeFiles/example2.dir/examples/example2.cpp.o
[ 66%] Linking CXX executable example2
[ 66%] Built target example2
Scanning dependencies of target example1
[ 83%] Building CXX object CMakeFiles/example1.dir/examples/example1.cpp.o
[100%] Linking CXX executable example1
[100%] Built target example1
$ cmake --build _build --target print
[100%] Built target print
$ cmake --build _build --target example1
[ 50%] Built target print
[100%] Built target example1
$ cmake --build _build --target example2
[ 50%] Built target print
[100%] Built target example2$ ls -la _build/libprint.a
-rw-r--r-- 1 mic mic 3118 май 10 14:35 _build/libprint.a
$ _build/example1 && echo
hello
$ _build/example2
$ cat log.txt && echo
hello
$ rm -rf log.txt$ git clone https://github.com/tp-labs/lab03 tmp
Cloning into 'tmp'...
remote: Enumerating objects: 15, done.
remote: Counting objects: 100% (15/15), done.
remote: Compressing objects: 100% (13/13), done.
remote: Total 88 (delta 7), reused 4 (delta 2), pack-reused 73
Receiving objects: 100% (88/88), 1.03 MiB | 115.00 KiB/s, done.
Resolving deltas: 100% (33/33), done.
$ mv -f tmp/CMakeLists.txt .
$ rm -rf tmp$ cat CMakeLists.txt
cmake_minimum_required(VERSION 3.4)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
option(BUILD_EXAMPLES "Build examples" OFF)
project(print)
add_library(print STATIC ${CMAKE_CURRENT_SOURCE_DIR}/sources/print.cpp)
target_include_directories(print PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>
)
if(BUILD_EXAMPLES)
file(GLOB EXAMPLE_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/examples/*.cpp")
foreach(EXAMPLE_SOURCE ${EXAMPLE_SOURCES})
get_filename_component(EXAMPLE_NAME ${EXAMPLE_SOURCE} NAME_WE)
add_executable(${EXAMPLE_NAME} ${EXAMPLE_SOURCE})
target_link_libraries(${EXAMPLE_NAME} print)
install(TARGETS ${EXAMPLE_NAME}
RUNTIME DESTINATION bin
)
endforeach(EXAMPLE_SOURCE ${EXAMPLE_SOURCES})
endif()
install(TARGETS print
EXPORT print-config
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
)
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/ DESTINATION include)
install(EXPORT print-config DESTINATION cmake)
$ cmake -H. -B_build -DCMAKE_INSTALL_PREFIX=_install
-- Configuring done
-- Generating done
-- Build files have been written to: /Documents/Users/scorpy2013/workspace/projects/lab03/_build
$ cmake --build _build --target install
Install the project...
-- Install configuration: ""
-- Installing: /Documents/Users/scorpy2013/workspace/projects/lab03/_install/lib/libprint.a
-- Installing: /Documents/Users/scorpy2013/workspace/projects/lab03/_install/include
-- Installing: /Documents/Users/scorpy2013/workspace/projects/lab03/_install/include/print.hpp
-- Installing: /Documents/Users/scorpy2013/workspace/projects/lab03/_install/cmake/print-config.cmake
-- Installing: /Documents/Users/scorpy2013/workspace/projects/lab03/_install/cmake/print-config-noconfig.cmake
$ tree _install
_install
├── cmake
│ ├── print-config.cmake
│ └── print-config-noconfig.cmake
├── include
│ └── print.hpp
└── lib
└── libprint.a
3 directories, 4 files$ git add CMakeLists.txt
$ git commit -m"added CMakeLists.txt"
$ git push origin master
To https://github.com/scorpy2013/lab03.git
! [rejected] master -> master (fetch first)
error: failed to push some refs to 'https://github.com/scorpy2013/lab03.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.$ popd
~/Documents/GitHub/lab03/scorpy2013/workspace
$ export LAB_NUMBER=03
$ git clone https://github.com/tp-labs/lab${LAB_NUMBER} tasks/lab${LAB_NUMBER}
Cloning into 'tasks/lab03'...
remote: Enumerating objects: 15, done.
remote: Counting objects: 100% (15/15), done.
remote: Compressing objects: 100% (13/13), done.
remote: Total 88 (delta 7), reused 4 (delta 2), pack-reused 73
Receiving objects: 100% (88/88), 1.03 MiB | 1.16 MiB/s, done.
Resolving deltas: 100% (33/33), done.
$ mkdir reports/lab${LAB_NUMBER}
$ cp tasks/lab${LAB_NUMBER}/README.md reports/lab${LAB_NUMBER}/REPORT.md
$ cd reports/lab${LAB_NUMBER}
$ edit REPORT.md
$ gist REPORT.mdПредставьте, что вы стажер в компании "Formatter Inc.".
Вам поручили перейти на систему автоматизированной сборки CMake.
Исходные файлы находятся в директории formatter_lib.
В этой директории находятся файлы для статической библиотеки formatter.
Создайте CMakeList.txt в директории formatter_lib,
с помощью которого можно будет собирать статическую библиотеку formatter.
У компании "Formatter Inc." есть перспективная библиотека,
которая является расширением предыдущей библиотеки. Т.к. вы уже овладели
навыком созданием CMakeList.txt для статической библиотеки formatter, ваш
руководитель поручает заняться созданием CMakeList.txt для библиотеки
formatter_ex, которая в свою очередь использует библиотеку formatter.
Конечно же ваша компания предоставляет примеры использования своих библиотек.
Чтобы продемонстрировать как работать с библиотекой formatter_ex,
вам необходимо создать два CMakeList.txt для двух простых приложений:
- hello_world, которое использует библиотеку formatter_ex;
- solver, приложение которое испольует статические библиотеки formatter_ex и solver_lib.
Удачной стажировки!
- Основы сборки проектов на С/C++ при помощи CMake
- CMake Tutorial
- C++ Tutorial - make & CMake
- Autotools
- CMake
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