cmake_minimum_required (VERSION 3.0)
if (POLICY CMP0042)
cmake_policy (SET CMP0042 NEW)
endif (POLICY CMP0042)
if (POLICY CMP0063)
cmake_policy (SET CMP0063 NEW)
endif (POLICY CMP0063)
project(glog VERSION 0.5.0 LANGUAGES CXX)
set (CPACK_PACKAGE_NAME glog)
set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Google logging library")
set (CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set (CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set (CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
set (CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
option (BUILD_SHARED_LIBS "Build shared libraries" ON)
option (PRINT_UNSYMBOLIZED_STACK_TRACES
"Print file offsets in traces instead of symbolizing" OFF)
option (WITH_CUSTOM_PREFIX "Enable support for user-generated message prefixes" OFF)
option (WITH_GFLAGS "Use gflags" ON)
option (WITH_GTEST "Use googletest" ON)
option (WITH_PKGCONFIG "Enable pkg-config support" ON)
option (WITH_SYMBOLIZE "Enable symbolize module" ON)
option (WITH_THREADS "Enable multithreading support" ON)
option (WITH_TLS "Enable Thread Local Storage (TLS) support" ON)
option (WITH_UNWIND "Enable libunwind support" ON)
if (NOT WITH_UNWIND)
set (CMAKE_DISABLE_FIND_PACKAGE_Unwind ON)
endif (NOT WITH_UNWIND)
if (NOT WITH_GTEST)
set (CMAKE_DISABLE_FIND_PACKAGE_GTest ON)
endif (NOT WITH_GTEST)
if (NOT WITH_THREADS)
set (CMAKE_DISABLE_FIND_PACKAGE_Threads ON)
endif (NOT WITH_THREADS)
set (CMAKE_C_VISIBILITY_PRESET hidden)
set (CMAKE_CXX_VISIBILITY_PRESET hidden)
set (CMAKE_VISIBILITY_INLINES_HIDDEN 1)
list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include (CheckCXXSourceCompiles)
include (CheckCXXCompilerFlag)
include (CheckCXXSourceCompiles)
include (CheckCXXSourceRuns)
include (CheckFunctionExists)
include (CheckIncludeFileCXX)
include (CheckLibraryExists)
include (CheckStructHasMember)
include (CheckSymbolExists)
include (CheckTypeSize)
include (CMakePackageConfigHelpers)
include (CMakePushCheckState)
include (CPack)
include (CTest)
include (DetermineGflagsNamespace)
include (GenerateExportHeader)
include (GetCacheVariables)
include (GNUInstallDirs)
set (CMAKE_DEBUG_POSTFIX d)
set (CMAKE_THREAD_PREFER_PTHREAD 1)
find_package (GTest)
if (GTest_FOUND)
set (HAVE_LIB_GTEST 1)
endif (GTest_FOUND)
if (WITH_GFLAGS)
find_package (gflags 2.2.0)
if (gflags_FOUND)
set (HAVE_LIB_GFLAGS 1)
determine_gflags_namespace (gflags_NAMESPACE)
endif (gflags_FOUND)
endif (WITH_GFLAGS)
find_package (Threads)
find_package (Unwind)
if (Unwind_FOUND)
set (HAVE_LIB_UNWIND 1)
set (HAVE_UNWIND_H 1)
endif (Unwind_FOUND)
check_include_file_cxx (dlfcn.h HAVE_DLFCN_H)
check_include_file_cxx (execinfo.h HAVE_EXECINFO_H)
check_include_file_cxx (glob.h HAVE_GLOB_H)
check_include_file_cxx (inttypes.h HAVE_INTTYPES_H)
check_include_file_cxx (memory.h HAVE_MEMORY_H)
check_include_file_cxx (pwd.h HAVE_PWD_H)
check_include_file_cxx (stdint.h HAVE_STDINT_H)
check_include_file_cxx (strings.h HAVE_STRINGS_H)
check_include_file_cxx (sys/stat.h HAVE_SYS_STAT_H)
check_include_file_cxx (sys/syscall.h HAVE_SYS_SYSCALL_H)
check_include_file_cxx (sys/time.h HAVE_SYS_TIME_H)
check_include_file_cxx (sys/types.h HAVE_SYS_TYPES_H)
check_include_file_cxx (sys/utsname.h HAVE_SYS_UTSNAME_H)
check_include_file_cxx (sys/wait.h HAVE_SYS_WAIT_H)
check_include_file_cxx (syscall.h HAVE_SYSCALL_H)
check_include_file_cxx (syslog.h HAVE_SYSLOG_H)
check_include_file_cxx (ucontext.h HAVE_UCONTEXT_H)
check_include_file_cxx (unistd.h HAVE_UNISTD_H)
check_include_file_cxx ("ext/hash_map" HAVE_EXT_HASH_MAP)
check_include_file_cxx ("ext/hash_set" HAVE_EXT_HASH_SET)
check_include_file_cxx ("ext/slist" HAVE_EXT_SLIST)
check_include_file_cxx ("tr1/unordered_map" HAVE_TR1_UNORDERED_MAP)
check_include_file_cxx ("tr1/unordered_set" HAVE_TR1_UNORDERED_SET)
check_include_file_cxx ("unordered_map" HAVE_UNORDERED_MAP)
check_include_file_cxx ("unordered_set" HAVE_UNORDERED_SET)
check_type_size ("unsigned __int16" HAVE___UINT16 LANGUAGE CXX)
check_type_size (u_int16_t HAVE_U_INT16_T LANGUAGE CXX)
check_type_size (uint16_t HAVE_UINT16_T LANGUAGE CXX)
check_function_exists (dladdr HAVE_DLADDR)
check_function_exists (fcntl HAVE_FCNTL)
check_function_exists (pread HAVE_PREAD)
check_function_exists (pwrite HAVE_PWRITE)
check_function_exists (sigaction HAVE_SIGACTION)
check_function_exists (sigaltstack HAVE_SIGALSTACK)
# NOTE gcc does not fail if you pass a non-existent -Wno-* option as an
# argument. However, it will happily fail if you pass the corresponding -W*
# option. So, we check whether options that disable warnings exist by testing
# the availability of the corresponding option that enables the warning. This
# eliminates the need to check for compiler for several (mainly Clang) options.
check_cxx_compiler_flag (-Wdeprecated HAVE_NO_DEPRECATED)
check_cxx_compiler_flag (-Wunnamed-type-template-args
HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS)
# NOTE: Cannot use check_function_exists here since >=vc-14.0 can define
# snprintf as an inline function
check_symbol_exists (snprintf cstdio HAVE_SNPRINTF)
check_library_exists (dbghelp UnDecorateSymbolName "" HAVE_DBGHELP)
check_cxx_source_compiles ("
#include <cstdlib>
static void foo(void) __attribute__ ((unused));
int main(void) { return 0; }
" HAVE___ATTRIBUTE__)
check_cxx_source_compiles ("
#include <cstdlib>
static void foo(void) __attribute__ ((visibility(\"default\")));
int main(void) { return 0; }
" HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)
check_cxx_source_compiles ("
#include <cstdlib>
static void foo(void) __attribute__ ((visibility(\"hidden\")));
int main(void) { return 0; }
" HAVE___ATTRIBUTE__VISIBILITY_HIDDEN)
check_cxx_source_compiles ("
int main(void) { if (__builtin_expect(0, 0)) return 1; return 0; }
" HAVE___BUILTIN_EXPECT)
check_cxx_source_compiles ("
int main(void)
{
int a; if (__sync_val_compare_and_swap(&a, 0, 1)) return 1; return 0;
}
" HAVE___SYNC_VAL_COMPARE_AND_SWAP)
check_cxx_source_compiles ("
#define _XOPEN_SOURCE 500
#include <pthread.h>
int main(void)
{
pthread_rwlock_t l;
pthread_rwlock_init(&l, NULL);
pthread_rwlock_rdlock(&l);
return 0;
}
" HAVE_RWLOCK)
check_cxx_source_compiles ("
__declspec(selectany) int a;
int main(void) { return 0; }
" HAVE___DECLSPEC)
check_cxx_source_compiles ("
#include <vector>
vector<int> t; int main() { }
" STL_NO_NAMESPACE)
check_cxx_source_compiles ("
#include <vector>
std::vector<int> t; int main() { }
" STL_STD_NAMESPACE)
check_cxx_source_compiles ("
#include <iostream>
std::ostream& operator<<(std::ostream&, struct s);
using ::operator<<;
int main() { }
" HAVE_USING_OPERATOR)
check_cxx_source_compiles ("
namespace Outer { namespace Inner { int i = 0; }}
using namespace Outer::Inner;;
int main() { return i; }
" HAVE_NAMESPACES)
check_cxx_source_compiles ("
__thread int tls;
int main() { }
" HAVE_GCC_TLS)
check_cxx_source_compiles ("
__declspec(thread) int tls;
int main() { }
" HAVE_MSVC_TLS)
check_cxx_source_compiles ("
thread_local int tls;
int main() { }
" HAVE_CXX11_TLS)
check_cxx_source_compiles ("
#include <type_traits>
std::aligned_storage<sizeof(char), alignof(char)>::type data;
int main() { }
" HAVE_ALIGNED_STORAGE)
check_cxx_source_compiles ("
#include <atomic>
std::atomic<int> i;
int main() { }
" HAVE_CXX11_ATOMIC)
check_cxx_source_compiles ("
#include <cstddef>
void foo(std::nullptr_t) {}
int main(void) { foo(nullptr); }
" HAVE_CXX11_NULLPTR_T)
if (WITH_TLS)
# Cygwin does not support the thread attribute. Don't bother.
if (HAVE_GCC_TLS)
set (GLOG_THREAD_LOCAL_STORAGE "__thread")
elseif (HAVE_MSVC_TLS)
set (GLOG_THREAD_LOCAL_STORAGE "__declspec(thread)")
elseif (HAVE_CXX11_TLS)
set (GLOG_THREAD_LOCAL_STORAGE thread_local)
endif (HAVE_GCC_TLS)
endif (WITH_TLS)
set (_PC_FIELDS
"gregs[REG_PC]"
"gregs[REG_EIP]"
"gregs[REG_RIP]"
"sc_ip"
"uc_regs->gregs[PT_NIP]"
"gregs[R15]"
"arm_pc"
"mc_eip"
"mc_rip"
"__gregs[REG_EIP]"
"__gregs[REG_RIP]"
"ss.eip"
"__ss.__eip"
"ss.rip"
"__