--- CMakeLists.txt +++ CMakeLists.txt @@ -21,241 +21,603 @@ # this will generate gc.sln # -SET(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required - -PROJECT(gc) - -INCLUDE(CTest) - -CMAKE_MINIMUM_REQUIRED(VERSION 2.6) - -ADD_DEFINITIONS("-D_CRT_SECURE_NO_DEPRECATE - -DALL_INTERIOR_POINTERS -DNO_EXECUTE_PERMISSION") - -IF(APPLE) - IF("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "") - SET(CMAKE_OSX_ARCHITECTURES "ppc;i386;x86_64" CACHE STRING "Build architectures for Mac OS X" FORCE) - ENDIF() -ENDIF(APPLE) - -#LIBATOMIC #TODO -#ADD_LIBRARY(atomic_ops STATIC ) -#SET_TARGET_PROPERTIES(atomic_ops PROPERTIES COMPILE_FLAGS -DNO_DEBUGGING) - - -#LIBGC - -INCLUDE_DIRECTORIES(include) -INCLUDE_DIRECTORIES(libatomic_ops/src) - -SET(SRC alloc.c reclaim.c allchblk.c misc.c mach_dep.c os_dep.c +cmake_minimum_required(VERSION 3.1) + +option(enable_cplusplus "C++ support" OFF) +if (enable_cplusplus) + project(gc) +else() + project(gc C) +endif() + +include(CheckCCompilerFlag) +include(CheckCSourceCompiles) +include(CheckFunctionExists) +include(CheckIncludeFile) +include(CheckSymbolExists) +include(CTest) + +# Customize the build by passing "-D=ON|OFF" in the command line. +option(BUILD_SHARED_LIBS "Build shared libraries" ON) +option(build_cord "Build cord library" ON) +option(build_tests "Build tests" OFF) +option(enable_threads "Support threads" ON) +option(enable_parallel_mark "Parallelize marking and free list construction" ON) +option(enable_thread_local_alloc "Turn on thread-local allocation optimization" ON) +option(enable_threads_discovery "Enable threads discovery in GC" ON) +option(enable_gcj_support "Support for gcj" ON) +option(enable_sigrt_signals "Use SIGRTMIN-based signals for thread suspend/resume" OFF) +option(enable_gc_debug "Support for pointer back-tracing" OFF) +option(disable_gc_debug "Disable debugging like GC_dump and its callees" OFF) +option(enable_java_finalization "Support for java finalization" ON) +option(enable_atomic_uncollectable "Support for atomic uncollectible allocation" ON) +option(enable_redirect_malloc "Redirect malloc and friends to GC routines" OFF) +option(enable_disclaim "Support alternative finalization interface" ON) +option(enable_large_config "Optimize for large heap or root set" OFF) +option(enable_gc_assertions "Enable collector-internal assertion checking" OFF) +option(enable_mmap "Use mmap instead of sbrk to expand the heap" OFF) +option(enable_munmap "Return page to the OS if empty for N collections" ON) +option(enable_dynamic_loading "Enable tracing of dynamic library data roots" ON) +option(enable_register_main_static_data "Perform the initial guess of data root sets" ON) +option(enable_checksums "Report erroneously cleared dirty bits" OFF) +option(enable_werror "Pass -Werror to the C compiler (treat warnings as errors)" OFF) +option(enable_single_obj_compilation "Compile all libgc source files into single .o" OFF) +option(enable_handle_fork "Attempt to ensure a usable collector after fork()" ON) +option(disable_handle_fork "Prohibit installation of pthread_atfork() handlers" OFF) +option(install_headers "Install header files" ON) + +add_definitions("-DALL_INTERIOR_POINTERS -DNO_EXECUTE_PERMISSION") + +if (APPLE AND ("${CMAKE_OSX_ARCHITECTURES}" STREQUAL "")) + set(CMAKE_OSX_ARCHITECTURES "x86_64;i386" + CACHE STRING "Build architectures for Mac OS X" FORCE) +endif() + +# Set struct packing alignment to word (instead of 1-byte). +if (BORLAND) + add_compile_options(/a4) +elseif (WATCOM) + add_compile_options(/zp4) +endif() + +# Output all warnings. +if (BORLAND) + # All warnings except for particular ones. + add_compile_options(/w /w-pro /w-aus /w-par /w-ccc /w-inl /w-rch) +elseif (MSVC) + # All warnings but ignoring "unreferenced formal parameter" and + # "conditional expression is constant" ones. + add_compile_options(/W4 /wd4100 /wd4127) + # Disable crt security warnings, since unfortunately they warn about all + # sorts of safe uses of strncpy. + add_definitions("-D_CRT_SECURE_NO_DEPRECATE") +elseif (WATCOM) + add_compile_options(/wx) +else() + # TODO add -[W]pedantic -Wno-long-long + add_compile_options(-Wall -Wextra) +endif() + +include_directories(include) + +set(SRC alloc.c reclaim.c allchblk.c misc.c mach_dep.c os_dep.c mark_rts.c headers.c mark.c obj_map.c blacklst.c finalize.c new_hblk.c dbg_mlc.c malloc.c dyn_load.c typd_mlc.c ptr_chck.c mallocx.c) -SET(LIBS) -OPTION(enable_threads "TODO" NO) -IF(enable_threads) - FIND_PACKAGE(Threads REQUIRED) - MESSAGE("Thread Model: ${CMAKE_THREAD_LIBS_INIT}" ) - INCLUDE_DIRECTORIES(${Threads_INCLUDE_DIR}) - SET(LIBS ${LIBS} ${Threads_LIBRARIES}) -ENDIF(enable_threads) - -OPTION(enable_handle_fork "Attempt to ensure a usable collector after fork()" ON) - -OPTION(enable_thread_local_alloc "Turn on thread-local allocation optimization" ON) - -OPTION(enable_parallel_mark "Parallelize marking and free list construction" ON) - -#IF(Threads_FOUND) -# ADD_DEFINITIONS("") -#ELSE -# MESSAGE("Parallel mark requires enable_threads ON" ) -#ENDIF(Threads_FOUND) - -#OPTION(enable_cplusplus "install C++ support" ON) -SET(SRC ${SRC} gc_cpp.cc) - -SET(_HOST ${CMAKE_HOST_SYSTEM_PROCESSOR}--${CMAKE_SYSTEM}) #FIXME missing the vendor field. -STRING(TOLOWER ${_HOST} HOST) -MESSAGE("HOST = ${HOST}") - -# Thread Detection. Relying on cmake for lib and includes. -#TODO check cmake detection -IF(CMAKE_USE_PTHREADS_INIT) - SET(SRC ${SRC} pthread_start.c pthread_support.c pthread_stop_world.c) - # Common defines for most POSIX platforms. - IF( HOST MATCHES .*-.*-aix.*|.*-.*-android.*|.*-.*-cygwin.*|.*-.*-darwin.*|.*-.*-.*freebsd.*|.*-.*-haiku.*|.*-.*-gnu.*|.*-.*-hpux11.*|.*-.*-irix.*|.*-.*-.*linux.*|.*-.*-nacl.*|.*-.*-netbsd.*|.*-.*-openbsd.*|.*-.*-osf.*|.*-.*-solaris.*) - ADD_DEFINITIONS("-DGC_THREADS -D_REENTRANT") - IF(enable_parallel_mark) - ADD_DEFINITIONS("-DPARALLEL_MARK") - ENDIF(enable_parallel_mark) - IF(enable_thread_local_alloc) - ADD_DEFINITIONS("-DTHREAD_LOCAL_ALLOC") - SET(SRC ${SRC} thread_local_alloc.c) - ENDIF(enable_thread_local_alloc) - MESSAGE("Explicit GC_INIT() calls may be required.") - ENDIF() - IF ( HOST MATCHES .*-.*-hpux11.*) - MESSAGE("Only HP/UX 11 POSIX threads are supported.") - ADD_DEFINITIONS("-D_POSIX_C_SOURCE=199506L") #TODO test -DVAR=value. Alternative is COMPILE_DEFINITIONS property - ENDIF() - IF ( HOST MATCHES .*-.*-hpux10.*) - MESSAGE("HP/UX 10 POSIX threads are not supported.") - ENDIF() - IF ( HOST MATCHES .*-.*-netbsd.*) - MESSAGE("Only on NetBSD 2.0 or later.") - ADD_DEFINITIONS("-D_PTHREADS") - ENDIF() - IF( HOST MATCHES .*-.*-android.*) - # Android NDK does not provide pthread_atfork. - ELSEIF( HOST MATCHES .*-.*-aix.*|.*-.*-cygwin.*|.*-.*-freebsd.*|.*-.*-haiku.*|.*-.*-hpux11.*|.*-.*-irix.*|.*-.*-kfreebsd.*-gnu|.*-.*-.*linux.*|.*-.*-netbsd.*|.*-.*-openbsd.*|.*-.*-osf.*|.*-.*-solaris.*) - IF(enable_handle_fork) - ADD_DEFINITIONS("-DHANDLE_FORK") - ENDIF(enable_handle_fork) - ENDIF() - IF ( HOST MATCHES .*-.*-cygwin.*) - SET(SRC ${SRC} win32_threads.c) - ENDIF() - IF ( HOST MATCHES .*-.*-darwin.*) - IF(enable_handle_fork) - # The incremental mode conflicts with fork handling. - IF(enable_parallel_mark) - ADD_DEFINITIONS("-DHANDLE_FORK") - ENDIF(enable_parallel_mark) - ENDIF(enable_handle_fork) - SET(SRC ${SRC} darwin_stop_world.c) - #TODO - #darwin_threads=true - ENDIF() -ENDIF(CMAKE_USE_PTHREADS_INIT) - -IF(CMAKE_USE_WIN32_THREADS_INIT) - ADD_DEFINITIONS("-DGC_THREADS") - IF(enable_parallel_mark) - ADD_DEFINITIONS("-DPARALLEL_MARK") - IF(enable_thread_local_alloc) - ADD_DEFINITIONS("-DTHREAD_LOCAL_ALLOC") - SET(SRC ${SRC} thread_local_alloc.c) - ENDIF(enable_thread_local_alloc) - ENDIF() - ADD_DEFINITIONS("-DEMPTY_GETENV_RESULTS") #TODO test - SET(SRC ${SRC} win32_threads.c) -ENDIF(CMAKE_USE_WIN32_THREADS_INIT) - -OPTION(enable_gcj_support "Support for gcj" ON) -IF(enable_gcj_support) - ADD_DEFINITIONS("-DGC_GCJ_SUPPORT") - IF(enable_threads) - ADD_DEFINITIONS("-DGC_ENABLE_SUSPEND_THREAD") - ENDIF(enable_threads) - SET(SRC ${SRC} gcj_mlc.c) -ENDIF(enable_gcj_support) - -OPTION(enable_disclaim "Support alternative finalization interface" ON) -IF(enable_disclaim) - ADD_DEFINITIONS("-DENABLE_DISCLAIM") - SET(SRC ${SRC} fnlz_mlc.c) -ENDIF(enable_disclaim) - -OPTION(enable_java_finalization "Support for java finalization" ON) -IF(enable_java_finalization) - ADD_DEFINITIONS("-DJAVA_FINALIZATION") -ENDIF(enable_java_finalization) - -OPTION(enable_atomic_uncollectable "Support for atomic uncollectible allocation" ON) -IF(enable_atomic_uncollectable) - ADD_DEFINITIONS("-DGC_ATOMIC_UNCOLLECTABLE") -ENDIF(enable_atomic_uncollectable) - -OPTION(enable_gc_debug "Support for pointer back-tracing" NO) -IF(enable_gc_debug) - ADD_DEFINITIONS("-DDBG_HDRS_ALL -DKEEP_BACK_PTRS") - IF (HOST MATCHES ia64-.*-linux.*|i586-.*-linux.*|i686-.*-linux.*|x86-.*-linux.*|x86_64-.*-linux.*) - ADD_DEFINITIONS("-DMAKE_BACK_GRAPH") - ADD_DEFINITIONS("-DSAVE_CALL_COUNT=8") - SET(SRC ${SRC} backgraph.c) - ENDIF() - IF (HOST MATCHES i.86-.*-dgux.*) - ADD_DEFINITIONS("-DMAKE_BACK_GRAPH") - SET(SRC ${SRC} backgraph.c) - ENDIF() -ENDIF(enable_gc_debug) - -OPTION(enable_redirect_malloc "Redirect malloc and friends to GC routines" NO) -IF(enable_redirect_malloc) - IF(enable_gc_debug) - ADD_DEFINITIONS("-DREDIRECT_MALLOC=GC_debug_malloc_replacement") - ADD_DEFINITIONS("-DREDIRECT_REALLOC=GC_debug_realloc_replacement") - ADD_DEFINITIONS("-DREDIRECT_FREE=GC_debug_free") - ELSE(enable_gc_debug) - ADD_DEFINITIONS("-DREDIRECT_MALLOC=GC_malloc") - ENDIF(enable_gc_debug) - ADD_DEFINITIONS("-DGC_USE_DLOPEN_WRAP") -ENDIF(enable_redirect_malloc) - -OPTION(enable_mmap "Use mmap instead of sbrk to expand the heap" NO) - -OPTION(enable_munmap "Return page to the OS if empty for N collections" ON) -IF(enable_munmap) - ADD_DEFINITIONS("-DUSE_MMAP -DUSE_MUNMAP") -ELSEIF(enable_mmap) - ADD_DEFINITIONS("-DUSE_MMAP") -ENDIF() - -OPTION(enable_dynamic_loading "Enable tracing of dynamic library data roots" ON) -IF(NOT enable_dynamic_loading) - ADD_DEFINITIONS("-DIGNORE_DYNAMIC_LOADING") -ENDIF() - -OPTION(enable_register_main_static_data "Perform the initial guess of data root sets" ON) -IF(NOT enable_register_main_static_data) - ADD_DEFINITIONS("-DGC_DONT_REGISTER_MAIN_STATIC_DATA") -ENDIF() - -OPTION(enable_large_config "Optimize for large heap or root set" NO) -IF(enable_large_config) - ADD_DEFINITIONS("-DLARGE_CONFIG") -ENDIF(enable_large_config) - -OPTION(enable_gc_assertions "Enable collector-internal assertion checking" NO) -IF(enable_gc_assertions) - ADD_DEFINITIONS("-DGC_ASSERTIONS") -ENDIF(enable_gc_assertions) - -OPTION(enable_threads_discovery "Enable threads discovery in GC" ON) -IF(NOT enable_threads_discovery) - ADD_DEFINITIONS("-DGC_NO_THREADS_DISCOVERY") -ENDIF() - -OPTION(enable_checksums "Report erroneously cleared dirty bits" NO) -IF(enable_checksums) - IF(enable_munmap OR enable_threads) - MESSAGE("CHECKSUMS not compatible with USE_MUNMAP or threads") - ENDIF() - ADD_DEFINITIONS("-DCHECKSUMS") - SET(SRC ${SRC} checksums.c) -ENDIF(enable_checksums) - -ADD_LIBRARY( gc-lib STATIC ${SRC}) -SET_TARGET_PROPERTIES(gc-lib PROPERTIES - COMPILE_DEFINITIONS GC_NOT_DLL) -#TODO TARGET_LINK_LIBRARIES(... ... ${LIBS}) - -ADD_LIBRARY( gcmt-lib STATIC ${SRC}) -SET_TARGET_PROPERTIES(gcmt-lib PROPERTIES - COMPILE_DEFINITIONS GC_NOT_DLL) - -ADD_LIBRARY( gcmt-dll SHARED ${SRC}) - -IF(WIN32) - ADD_EXECUTABLE(cord cord/cordbscs.c cord/cordxtra.c - cord/tests/de.c cord/tests/de_win.c) - SET_TARGET_PROPERTIES(cord PROPERTIES WIN32_EXECUTABLE TRUE) - SET_TARGET_PROPERTIES(cord PROPERTIES - COMPILE_DEFINITIONS GC_NOT_DLL) - TARGET_LINK_LIBRARIES(cord gc-lib) - TARGET_LINK_LIBRARIES(cord gdi32) -ENDIF(WIN32) - -ADD_SUBDIRECTORY(tests) +set(THREADDLLIBS) + +set(_HOST ${CMAKE_SYSTEM_PROCESSOR}-unknown-${CMAKE_SYSTEM}) +string(TOLOWER ${_HOST} HOST) +message(STATUS "TARGET = ${HOST}") + +if (enable_threads) + if(NOT APPLE) + find_package(Threads REQUIRED) + message(STATUS "Thread library: ${CMAKE_THREAD_LIBS_INIT}") + include_directories(${Threads_INCLUDE_DIR}) + set(THREADDLLIBS ${CMAKE_THREAD_LIBS_INIT}) + endif() + if (MSVC) + find_package(Atomic_ops CONFIG) + if (Atomic_ops_FOUND) + get_target_property(AO_INCLUDE_DIRS Atomic_ops::atomic_ops + INTERFACE_INCLUDE_DIRECTORIES) + include_directories(${AO_INCLUDE_DIRS}) + endif() + endif() + if (NOT (APPLE OR CYGWIN OR MSYS OR WIN32 OR HOST MATCHES mips-.*-irix6.*)) + set(THREADDLLIBS ${THREADDLLIBS} -ldl) + # The predefined CMAKE_DL_LIBS may be broken. + endif() +endif(enable_threads) + +# Thread support detection. +if (CMAKE_USE_PTHREADS_INIT) + set(SRC ${SRC} pthread_start.c pthread_support.c pthread_stop_world.c) + if (HOST MATCHES .*-.*-hpux10.*) + message(FATAL_ERROR "HP/UX 10 POSIX threads are not supported.") + endif() + # Assume the compiler supports C11 (GCC) atomic intrinsics. + add_definitions("-DGC_BUILTIN_ATOMIC") + # Common defines for POSIX platforms. + add_definitions("-DGC_THREADS -D_REENTRANT") + if (enable_parallel_mark) + add_definitions("-DPARALLEL_MARK") + endif() + if (enable_thread_local_alloc) + add_definitions("-DTHREAD_LOCAL_ALLOC") + set(SRC ${SRC} thread_local_alloc.c) + endif() + message("Explicit GC_INIT() calls may be required.") + if (HOST MATCHES .*-.*-hpux11.*) + message("Only HP/UX 11 POSIX threads are supported.") + add_definitions("-D_POSIX_C_SOURCE=199506L") + elseif (HOST MATCHES .*-.*-netbsd.*) + message("Only on NetBSD 2.0 or later.") + add_definitions("-D_PTHREADS") + endif() + if (ANDROID OR MSYS) # ANDROID variable is defined by CMake v3.7.0+. + # Android NDK does not provide pthread_atfork. + elseif (APPLE) + if (enable_handle_fork AND NOT disable_handle_fork) + # The incremental mode conflicts with fork handling. + if (enable_parallel_mark) + add_definitions("-DHANDLE_FORK") + endif(enable_parallel_mark) + endif() + set(SRC ${SRC} darwin_stop_world.c) + elseif (enable_handle_fork AND NOT disable_handle_fork) + add_definitions("-DHANDLE_FORK") + endif() + if (enable_sigrt_signals) + add_definitions("-DGC_USESIGRT_SIGNALS") + endif() + if (CYGWIN OR MSYS) + set(SRC ${SRC} win32_threads.c) + endif() +elseif (CMAKE_USE_WIN32_THREADS_INIT) + add_definitions("-DGC_THREADS") + if (enable_parallel_mark) + add_definitions("-DPARALLEL_MARK") + endif() + if (enable_thread_local_alloc AND (enable_parallel_mark OR NOT BUILD_SHARED_LIBS)) + # Imply THREAD_LOCAL_ALLOC unless GC_DLL. + add_definitions("-DTHREAD_LOCAL_ALLOC") + set(SRC ${SRC} thread_local_alloc.c) + endif() + add_definitions("-DEMPTY_GETENV_RESULTS") + set(SRC ${SRC} win32_threads.c) +elseif (CMAKE_HP_PTHREADS_INIT OR CMAKE_USE_SPROC_INIT) + message(FATAL_ERROR "Unsupported thread package") +endif() + +if (disable_handle_fork) + add_definitions("-DNO_HANDLE_FORK") +endif() + +if (enable_gcj_support) + add_definitions("-DGC_GCJ_SUPPORT") + if (enable_threads AND NOT (enable_thread_local_alloc AND HOST MATCHES .*-.*-kfreebsd.*-gnu)) + # FIXME: For a reason, gctest hangs up on kFreeBSD if both of + # THREAD_LOCAL_ALLOC and GC_ENABLE_SUSPEND_THREAD are defined. + add_definitions("-DGC_ENABLE_SUSPEND_THREAD") + endif() + set(SRC ${SRC} gcj_mlc.c) +endif(enable_gcj_support) + +if (enable_disclaim) + add_definitions("-DENABLE_DISCLAIM") + set(SRC ${SRC} fnlz_mlc.c) +endif() + +if (enable_java_finalization) + add_definitions("-DJAVA_FINALIZATION") +endif() + +if (enable_atomic_uncollectable) + add_definitions("-DGC_ATOMIC_UNCOLLECTABLE") +endif() + +if (enable_gc_debug) + add_definitions("-DDBG_HDRS_ALL -DKEEP_BACK_PTRS") + if (HOST MATCHES i.86-.*-dgux.*|ia64-.*-linux.*|i586-.*-linux.*|i686-.*-linux.*|x86-.*-linux.*|x86_64-.*-linux.*) + add_definitions("-DMAKE_BACK_GRAPH") + if (HOST MATCHES .*-.*-.*linux.*) + add_definitions("-DSAVE_CALL_COUNT=8") + endif() + set(SRC ${SRC} backgraph.c) + endif() +endif(enable_gc_debug) + +if (disable_gc_debug) + add_definitions("-DNO_DEBUGGING") +elseif (WINCE) + # Read environment variables from ".gc.env" file. + add_definitions("-DGC_READ_ENV_FILE") +endif() + +if (enable_redirect_malloc) + if (enable_gc_debug) + add_definitions("-DREDIRECT_MALLOC=GC_debug_malloc_replacement") + add_definitions("-DREDIRECT_REALLOC=GC_debug_realloc_replacement") + add_definitions("-DREDIRECT_FREE=GC_debug_free") + else() + add_definitions("-DREDIRECT_MALLOC=GC_malloc") + endif() + add_definitions("-DGC_USE_DLOPEN_WRAP") +endif(enable_redirect_malloc) + +if (enable_munmap) + add_definitions("-DUSE_MMAP -DUSE_MUNMAP") +elseif (enable_mmap) + add_definitions("-DUSE_MMAP") +endif() + +if (NOT enable_dynamic_loading) + add_definitions("-DIGNORE_DYNAMIC_LOADING") +endif() + +if (NOT enable_register_main_static_data) + add_definitions("-DGC_DONT_REGISTER_MAIN_STATIC_DATA") +endif() + +if (enable_large_config) + add_definitions("-DLARGE_CONFIG") +endif() + +if (enable_gc_assertions) + add_definitions("-DGC_ASSERTIONS") +endif() + +if (NOT enable_threads_discovery) + add_definitions("-DGC_NO_THREADS_DISCOVERY") +endif() + +if (enable_checksums) + if (enable_munmap OR enable_threads) + message(FATAL_ERROR "CHECKSUMS not compatible with USE_MUNMAP or threads") + endif() + add_definitions("-DCHECKSUMS") + set(SRC ${SRC} checksums.c) +endif(enable_checksums) + +if (enable_werror) + if (BORLAND) + add_compile_options(/w!) + elseif (MSVC) + add_compile_options(/WX) + # Workaround "typedef ignored on left of ..." warning reported in + # imagehlp.h of e.g. Windows Kit 8.1. + add_compile_options(/wd4091) + elseif (WATCOM) + add_compile_options(/we) + else() + add_compile_options(-Werror) + if (APPLE) + # _dyld_bind_fully_image_containing_address is deprecated in OS X 10.5+ + add_compile_options(-Wno-deprecated-declarations) + endif() + endif() +endif(enable_werror) + +if (enable_single_obj_compilation OR BUILD_SHARED_LIBS) + set(SRC extra/gc.c) # override SRC + if (CMAKE_USE_PTHREADS_INIT) + add_definitions("-DGC_PTHREAD_START_STANDALONE") + set(SRC ${SRC} pthread_start.c) + endif(CMAKE_USE_PTHREADS_INIT) +elseif (BORLAND) + # Suppress "GC_push_contents_hdr() is declared but never used" warning. + add_compile_options(/w-use) +endif() + +# Add implementation of backtrace() and backtrace_symbols(). +if (MSVC) + set(SRC ${SRC} extra/msvc_dbg.c) +endif() + +# Instruct check_c_source_compiles and similar CMake checks not to ignore +# compiler warnings (like "implicit declaration of function"). +if (NOT BORLAND AND NOT MSVC AND NOT WATCOM) + check_c_compiler_flag(-Werror HAVE_FLAG_WERROR) + if (HAVE_FLAG_WERROR) + SET(CMAKE_REQUIRED_FLAGS "-Werror") + endif(HAVE_FLAG_WERROR) +endif() + +if (BUILD_SHARED_LIBS) + add_definitions("-DGC_DLL") + # Pass -fvisibility=hidden option if supported. + check_c_compiler_flag(-fvisibility=hidden HAVE_FLAG_F_VISIBILITY_HIDDEN) + if (HAVE_FLAG_F_VISIBILITY_HIDDEN) + add_definitions("-DGC_VISIBILITY_HIDDEN_SET") + add_compile_options(-fvisibility=hidden) + else() + add_definitions("-DGC_NO_VISIBILITY") + endif() + check_c_compiler_flag(-Wl,--no-undefined HAVE_FLAG_WL_NO_UNDEFINED) +else() + add_definitions("-DGC_NOT_DLL") + if (WIN32) + # Do not require the clients to link with "user32" system library. + add_definitions("-DDONT_USE_USER32_DLL") + endif(WIN32) +endif() + +# Disable strict aliasing optimizations. +# It could re-enabled back by a flag passed in CFLAGS_EXTRA. +check_c_compiler_flag(-fno-strict-aliasing HAVE_FLAG_F_NO_STRICT_ALIASING) +if (HAVE_FLAG_F_NO_STRICT_ALIASING) + add_compile_options(-fno-strict-aliasing) +endif() + +# Extra user-defined flags to pass both to C and C++ compilers. +if (DEFINED CFLAGS_EXTRA) + add_compile_options(${CFLAGS_EXTRA}) +endif() + +# Check whether execinfo.h header file is present. +check_include_file(execinfo.h HAVE_EXECINFO_H) +if (NOT HAVE_EXECINFO_H) + add_definitions("-DGC_MISSING_EXECINFO_H") +endif() + +# Check for getcontext (uClibc can be configured without it, for example). +check_function_exists(getcontext HAVE_GETCONTEXT) +if (NOT HAVE_GETCONTEXT) + add_definitions("-DNO_GETCONTEXT") +endif() + +# Check whether dl_iterate_phdr exists (as a strong symbol). +check_function_exists(dl_iterate_phdr HAVE_DL_ITERATE_PHDR) +if (HAVE_DL_ITERATE_PHDR) + add_definitions("-DHAVE_DL_ITERATE_PHDR") +endif() + +check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP) +if (NOT HAVE_SIGSETJMP) + add_definitions("-DGC_NO_SIGSETJMP") +endif() + +# pthread_setname_np, if available, may have 1, 2 or 3 arguments. +if (CMAKE_USE_PTHREADS_INIT) + check_c_source_compiles(" +#include \n +int main(void) { (void)pthread_setname_np(\"thread-name\"); return 0; }" + HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID) + if (HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID) + # Define to use 'pthread_setname_np(const char*)' function. + add_definitions("-DHAVE_PTHREAD_SETNAME_NP_WITHOUT_TID") + else() + check_c_source_compiles(" +#include \n +int main(void) {\n + (void)pthread_setname_np(pthread_self(), \"thread-name-%u\", 0); return 0; }" + HAVE_PTHREAD_SETNAME_NP_WITH_TID_AND_ARG) + if (HAVE_PTHREAD_SETNAME_NP_WITH_TID_AND_ARG) + # Define to use 'pthread_setname_np(pthread_t, const char*, void *)'. + add_definitions("-DHAVE_PTHREAD_SETNAME_NP_WITH_TID_AND_ARG") + else() + check_c_source_compiles(" +#if defined(__linux__) || defined(__GLIBC__) || defined(__GNU__) || defined(__CYGWIN__)\n +#define _GNU_SOURCE 1\n +#endif\n +#include \n +int main(void) {\n + (void)pthread_setname_np(pthread_self(), \"thread-name\"); return 0; }" + HAVE_PTHREAD_SETNAME_NP_WITH_TID) + if (HAVE_PTHREAD_SETNAME_NP_WITH_TID) + # Define to use 'pthread_setname_np(pthread_t, const char*)' function. + add_definitions("-DHAVE_PTHREAD_SETNAME_NP_WITH_TID") + endif() + endif(HAVE_PTHREAD_SETNAME_NP_WITH_TID_AND_ARG) + endif (HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID) +endif() + +# Check for dladdr (used for debugging). +check_c_source_compiles(" +#define _GNU_SOURCE 1\n +#include \n +int main(void) { Dl_info info; (void)dladdr(\"\", &info); return 0; }" + HAVE_DLADDR) +if (HAVE_DLADDR) + # Define to use 'dladdr' function. + add_definitions("-DHAVE_DLADDR") +endif() + +add_library(gc ${SRC}) +if (enable_threads) + target_link_libraries(gc PRIVATE ${THREADDLLIBS}) +endif() + +if (enable_cplusplus) + add_library(gccpp gc_cpp.cc) + target_link_libraries(gccpp PRIVATE gc) +endif() + +if (build_cord) + set(CORD_SRC cord/cordbscs.c cord/cordprnt.c cord/cordxtra.c) + add_library(cord ${CORD_SRC}) + target_link_libraries(cord PRIVATE gc) + install(TARGETS cord EXPORT cordExports + LIBRARY DESTINATION lib + ARCHIVE DESTINATION lib + RUNTIME DESTINATION bin + INCLUDES DESTINATION include) +endif() + +if (BUILD_SHARED_LIBS AND HAVE_FLAG_WL_NO_UNDEFINED) + # Declare that the libraries do not refer to external symbols. + # TODO: use add_link_options() when cmake_minimum_required > 3.13 + target_link_libraries(gc PRIVATE -Wl,--no-undefined) + if (enable_cplusplus) + target_link_libraries(gccpp PRIVATE -Wl,--no-undefined) + endif(enable_cplusplus) + if (build_cord) + target_link_libraries(cord PRIVATE -Wl,--no-undefined) + endif(build_cord) +endif() + +install(TARGETS gc EXPORT gcExports + LIBRARY DESTINATION lib + ARCHIVE DESTINATION lib + RUNTIME DESTINATION bin + INCLUDES DESTINATION include) + +if (enable_cplusplus) + install(TARGETS gccpp EXPORT gccppExports + LIBRARY DESTINATION lib + ARCHIVE DESTINATION lib + RUNTIME DESTINATION bin + INCLUDES DESTINATION include) +endif() + +if (install_headers) + install(FILES include/gc.h + include/gc_backptr.h + include/gc_config_macros.h + include/gc_gcj.h + include/gc_inline.h + include/gc_mark.h + include/gc_pthread_redirects.h + include/gc_tiny_fl.h + include/gc_typed.h + include/gc_version.h + include/javaxfc.h + include/leak_detector.h + DESTINATION include/gc) + install(FILES include/extra/gc.h DESTINATION include) + if (enable_cplusplus) + install(FILES include/gc_allocator.h + include/gc_cpp.h + DESTINATION include/gc) + install(FILES include/extra/gc_cpp.h DESTINATION include) + endif() + if (enable_disclaim) + install(FILES include/gc_disclaim.h DESTINATION include/gc) + endif() + if (build_cord) + install(FILES include/cord.h + include/cord_pos.h + include/ec.h + DESTINATION include/gc) + endif() +endif(install_headers) + +if (build_tests) + if (build_cord) + add_executable(cordtest cord/tests/cordtest.c) + target_link_libraries(cordtest PRIVATE cord gc) + add_test(NAME cordtest COMMAND cordtest) + + if (WIN32 AND NOT CYGWIN) + add_executable(de cord/tests/de.c cord/tests/de_win.c + cord/tests/de_win.rc) + set_target_properties(de PROPERTIES WIN32_EXECUTABLE TRUE) + target_link_libraries(de PRIVATE cord gc gdi32) + endif() + endif(build_cord) + + # Compile some tests as C++ to test extern "C" in header files. + if (enable_cplusplus) + set_source_files_properties(tests/leak_test.c tests/test.c + PROPERTIES LANGUAGE CXX) + # To avoid "treating 'c' input as 'c++' when in C++ mode" Clang warning. + if (NOT (BORLAND OR MSVC OR WATCOM)) + add_compile_options(-x c++) + endif() + endif(enable_cplusplus) + + add_executable(gctest WIN32 tests/test.c) + target_link_libraries(gctest PRIVATE gc ${THREADDLLIBS}) + add_test(NAME gctest COMMAND gctest) + if (WATCOM) + # Suppress "conditional expression in if statement is always true/false" + # and "unreachable code" warnings in GC_MALLOC_[ATOMIC_]WORDS. + target_compile_options(gctest PRIVATE + /wcd=13 /wcd=201 /wcd=367 /wcd=368 /wcd=726) + endif() + + add_executable(hugetest tests/huge_test.c) + target_link_libraries(hugetest PRIVATE gc) + add_test(NAME hugetest COMMAND hugetest) + + add_executable(leaktest tests/leak_test.c) + target_link_libraries(leaktest PRIVATE gc) + add_test(NAME leaktest COMMAND leaktest) + + add_executable(middletest tests/middle.c) + target_link_libraries(middletest PRIVATE gc) + add_test(NAME middletest COMMAND middletest) + + add_executable(realloc_test tests/realloc_test.c) + target_link_libraries(realloc_test PRIVATE gc) + add_test(NAME realloc_test COMMAND realloc_test) + + add_executable(smashtest tests/smash_test.c) + target_link_libraries(smashtest PRIVATE gc) + add_test(NAME smashtest COMMAND smashtest) + + if (NOT (BUILD_SHARED_LIBS AND WIN32)) + add_library(staticrootslib_test tests/staticrootslib.c) + target_link_libraries(staticrootslib_test PRIVATE gc) + add_library(staticrootslib2_test tests/staticrootslib.c) + target_compile_options(staticrootslib2_test PRIVATE "-DSTATICROOTSLIB2") + target_link_libraries(staticrootslib2_test PRIVATE gc) + add_executable(staticrootstest tests/staticrootstest.c) + target_compile_options(staticrootstest PRIVATE "-DSTATICROOTSLIB2") + target_link_libraries(staticrootstest PRIVATE + gc staticrootslib_test staticrootslib2_test) + add_test(NAME staticrootstest COMMAND staticrootstest) + endif() + + if (enable_gc_debug) + add_executable(tracetest tests/trace_test.c) + target_link_libraries(tracetest PRIVATE gc) + add_test(NAME tracetest COMMAND tracetest) + endif() + + if (enable_threads) + add_executable(test_atomic_ops tests/test_atomic_ops.c) + target_link_libraries(test_atomic_ops PRIVATE gc) + add_test(NAME test_atomic_ops COMMAND test_atomic_ops) + + add_executable(threadleaktest tests/thread_leak_test.c) + target_link_libraries(threadleaktest PRIVATE gc ${THREADDLLIBS}) + add_test(NAME threadleaktest COMMAND threadleaktest) + + if (NOT WIN32) + add_executable(threadkey_test tests/threadkey_test.c) + target_link_libraries(threadkey_test PRIVATE gc ${THREADDLLIBS}) + add_test(NAME threadkey_test COMMAND threadkey_test) + endif() + + add_executable(subthreadcreate_test tests/subthread_create.c) + target_link_libraries(subthreadcreate_test PRIVATE gc ${THREADDLLIBS}) + add_test(NAME subthreadcreate_test COMMAND subthreadcreate_test) + + add_executable(initsecondarythread_test tests/initsecondarythread.c) + target_link_libraries(initsecondarythread_test PRIVATE gc ${THREADDLLIBS}) + add_test(NAME initsecondarythread_test COMMAND initsecondarythread_test) + endif(enable_threads) + + if (enable_cplusplus) + add_executable(test_cpp WIN32 tests/test_cpp.cc) + target_link_libraries(test_cpp PRIVATE gc gccpp) + add_test(NAME test_cpp COMMAND test_cpp) + endif() + + if (enable_disclaim) + add_executable(disclaim_bench tests/disclaim_bench.c) + target_link_libraries(disclaim_bench PRIVATE gc) + add_test(NAME disclaim_bench COMMAND disclaim_bench) + + add_executable(disclaim_test tests/disclaim_test.c) + target_link_libraries(disclaim_test PRIVATE gc ${THREADDLLIBS}) + add_test(NAME disclaim_test COMMAND disclaim_test) + + add_executable(disclaim_weakmap_test tests/disclaim_weakmap_test.c) + target_link_libraries(disclaim_weakmap_test PRIVATE gc ${THREADDLLIBS}) + add_test(NAME disclaim_weakmap_test COMMAND disclaim_weakmap_test) + endif() +endif(build_tests)