mirror of
https://github.com/curl/curl.git
synced 2024-12-27 06:59:43 +08:00
7860f575fe
- Call OPENSSL_thread_stop on thread termination (DLL_THREAD_DETACH) to prevent a memory leak in case OpenSSL is linked statically. - Warn in libcurl-thread.3 that if OpenSSL is linked statically then it may require thread cleanup. OpenSSL may need per-thread cleanup to stop a memory leak. For Windows and Cygwin if libcurl was built as a DLL then we can do that for the user by calling OPENSSL_thread_stop on thread termination. However, if libcurl was built statically then we do not have notification of thread termination and cannot do that for the user. Also, there are several other unusual cases where it may be necessary for the user to call OPENSSL_thread_stop, so in the libcurl-thread warning I added a link to the OpenSSL documentation. Co-authored-by: Viktor Szakats Reported-by: southernedge@users.noreply.github.com Reported-by: zmcx16@users.noreply.github.com Ref: https://www.openssl.org/docs/man3.0/man3/OPENSSL_thread_stop.html#NOTES Fixes https://github.com/curl/curl/issues/12327 Closes https://github.com/curl/curl/pull/12408
255 lines
9.4 KiB
CMake
255 lines
9.4 KiB
CMake
#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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###########################################################################
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set(LIB_NAME libcurl)
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set(LIBCURL_OUTPUT_NAME libcurl CACHE STRING "Basename of the curl library")
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add_definitions(-DBUILDING_LIBCURL)
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configure_file(curl_config.h.cmake
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${CMAKE_CURRENT_BINARY_DIR}/curl_config.h)
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transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
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include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake)
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# DllMain is added later for DLL builds only.
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list(REMOVE_ITEM CSOURCES dllmain.c)
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list(APPEND HHEADERS ${CMAKE_CURRENT_BINARY_DIR}/curl_config.h)
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# The rest of the build
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/../include)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
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include_directories(${CMAKE_CURRENT_BINARY_DIR}/..)
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include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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include_directories(${CMAKE_CURRENT_BINARY_DIR})
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if(USE_ARES)
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include_directories(${CARES_INCLUDE_DIR})
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endif()
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if(BUILD_TESTING)
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add_library(
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curlu # special libcurlu library just for unittests
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STATIC
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EXCLUDE_FROM_ALL
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${HHEADERS} ${CSOURCES}
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)
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target_compile_definitions(curlu PUBLIC UNITTESTS CURL_STATICLIB)
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endif()
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if(ENABLE_CURLDEBUG)
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# We must compile these sources separately to avoid memdebug.h redefinitions
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# applying to them.
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set_source_files_properties(memdebug.c curl_multibyte.c PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON)
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endif()
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if(BUILD_TESTING)
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target_link_libraries(curlu PRIVATE ${CURL_LIBS})
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endif()
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transform_makefile_inc("Makefile.soname" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake")
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include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.soname.cmake)
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if(CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
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CMAKE_SYSTEM_NAME STREQUAL "Linux" OR
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CMAKE_SYSTEM_NAME STREQUAL "Darwin" OR
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CMAKE_SYSTEM_NAME STREQUAL "SunOS" OR
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CMAKE_SYSTEM_NAME STREQUAL "GNU/kFreeBSD" OR
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# FreeBSD comes with the a.out and elf flavours
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# but a.out was supported up to version 3.x and
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# elf from 3.x. I cannot imagine someone running
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# CMake on those ancient systems
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CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
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CMAKE_SYSTEM_NAME STREQUAL "Haiku")
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math(EXPR CMAKESONAME "${VERSIONCHANGE} - ${VERSIONDEL}")
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set(CMAKEVERSION "${CMAKESONAME}.${VERSIONDEL}.${VERSIONADD}")
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else()
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unset(CMAKESONAME)
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endif()
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## Library definition
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# Add "_imp" as a suffix before the extension to avoid conflicting with
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# the statically linked "libcurl.lib" (typically with MSVC)
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if(WIN32 AND
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NOT IMPORT_LIB_SUFFIX AND
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CMAKE_STATIC_LIBRARY_SUFFIX STREQUAL CMAKE_IMPORT_LIBRARY_SUFFIX)
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set(IMPORT_LIB_SUFFIX "_imp")
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endif()
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# Whether to do a single compilation pass for libcurl sources and reuse these
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# objects to generate both static and shared target.
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if(NOT DEFINED SHARE_LIB_OBJECT)
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# Enable it by default on platforms where PIC is the default for both shared
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# and static and there is a way to tell the linker which libcurl symbols it
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# should export (vs. marking these symbols exportable at compile-time).
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if(WIN32)
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set(SHARE_LIB_OBJECT ON)
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else()
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# On other platforms, make it an option disabled by default
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set(SHARE_LIB_OBJECT OFF)
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endif()
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endif()
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if(SHARE_LIB_OBJECT)
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set(LIB_OBJECT "libcurl_object")
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add_library(${LIB_OBJECT} OBJECT ${HHEADERS} ${CSOURCES})
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if(WIN32)
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# Define CURL_STATICLIB always, to disable __declspec(dllexport) for
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# exported libcurl symbols. We handle exports via libcurl.def instead.
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# Except with symbol hiding disabled or debug mode enabled, when we export
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# _all_ symbols from libcurl DLL, without using libcurl.def.
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set_property(TARGET ${LIB_OBJECT} APPEND
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PROPERTY COMPILE_DEFINITIONS "CURL_STATICLIB")
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endif()
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target_link_libraries(${LIB_OBJECT} PRIVATE ${CURL_LIBS})
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set_target_properties(${LIB_OBJECT} PROPERTIES
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POSITION_INDEPENDENT_CODE ON)
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_OBJECT} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_OBJECT} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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target_include_directories(${LIB_OBJECT} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
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set(LIB_SOURCE $<TARGET_OBJECTS:${LIB_OBJECT}>)
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else()
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set(LIB_SOURCE ${HHEADERS} ${CSOURCES})
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endif()
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# we want it to be called libcurl on all platforms
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if(BUILD_STATIC_LIBS)
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list(APPEND libcurl_export ${LIB_STATIC})
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add_library(${LIB_STATIC} STATIC ${LIB_SOURCE})
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add_library(${PROJECT_NAME}::${LIB_STATIC} ALIAS ${LIB_STATIC})
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if(WIN32)
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set_property(TARGET ${LIB_OBJECT} APPEND
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PROPERTY COMPILE_DEFINITIONS "CURL_STATICLIB")
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endif()
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target_link_libraries(${LIB_STATIC} PRIVATE ${CURL_LIBS})
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# Remove the "lib" prefix since the library is already named "libcurl".
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set_target_properties(${LIB_STATIC} PROPERTIES
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PREFIX "" OUTPUT_NAME "${LIBCURL_OUTPUT_NAME}"
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SUFFIX "${STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}"
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INTERFACE_COMPILE_DEFINITIONS "CURL_STATICLIB")
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_STATIC} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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if(CMAKEVERSION AND CMAKESONAME)
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set_target_properties(${LIB_STATIC} PROPERTIES
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VERSION ${CMAKEVERSION} SOVERSION ${CMAKESONAME})
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endif()
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target_include_directories(${LIB_STATIC} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
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endif()
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if(BUILD_SHARED_LIBS)
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list(APPEND libcurl_export ${LIB_SHARED})
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add_library(${LIB_SHARED} SHARED ${LIB_SOURCE})
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add_library(${PROJECT_NAME}::${LIB_SHARED} ALIAS ${LIB_SHARED})
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if(WIN32 OR CYGWIN)
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if(CYGWIN)
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# For cygwin always compile dllmain.c as a separate unit since it
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# includes windows.h, which shouldn't be included in other units.
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set_source_files_properties(dllmain.c PROPERTIES
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SKIP_UNITY_BUILD_INCLUSION ON)
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endif()
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES dllmain.c)
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endif()
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if(WIN32)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES libcurl.rc)
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES "${CURL_SOURCE_DIR}/libcurl.def")
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endif()
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endif()
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target_link_libraries(${LIB_SHARED} PRIVATE ${CURL_LIBS})
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# Remove the "lib" prefix since the library is already named "libcurl".
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set_target_properties(${LIB_SHARED} PROPERTIES
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PREFIX "" OUTPUT_NAME "${LIBCURL_OUTPUT_NAME}"
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IMPORT_PREFIX "" IMPORT_SUFFIX "${IMPORT_LIB_SUFFIX}${CMAKE_IMPORT_LIBRARY_SUFFIX}"
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POSITION_INDEPENDENT_CODE ON)
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if(HIDES_CURL_PRIVATE_SYMBOLS)
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_FLAGS "${CURL_CFLAG_SYMBOLS_HIDE}")
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set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
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endif()
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if(CURL_HAS_LTO)
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set_target_properties(${LIB_SHARED} PROPERTIES
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INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE
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INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
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endif()
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if(CMAKEVERSION AND CMAKESONAME)
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set_target_properties(${LIB_SHARED} PROPERTIES
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VERSION ${CMAKEVERSION} SOVERSION ${CMAKESONAME})
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endif()
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target_include_directories(${LIB_SHARED} INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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$<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
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endif()
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add_library(${LIB_NAME} ALIAS ${LIB_SELECTED})
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add_library(${PROJECT_NAME}::${LIB_NAME} ALIAS ${LIB_SELECTED})
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if(CURL_ENABLE_EXPORT_TARGET)
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if(BUILD_STATIC_LIBS)
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install(TARGETS ${LIB_STATIC}
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EXPORT ${TARGETS_EXPORT_NAME}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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endif()
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if(BUILD_SHARED_LIBS)
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install(TARGETS ${LIB_SHARED}
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EXPORT ${TARGETS_EXPORT_NAME}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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endif()
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export(TARGETS ${libcurl_export}
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FILE ${PROJECT_BINARY_DIR}/libcurl-target.cmake
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NAMESPACE ${PROJECT_NAME}::
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)
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endif()
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