diff --git a/CMakeLists.txt b/CMakeLists.txt index 7cb6cf91f..49ba82aa8 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -62,7 +62,6 @@ check_include_file (dlfcn.h HAVE_DLFCN_H) check_include_file (execinfo.h HAVE_EXECINFO_H) check_include_file (glob.h HAVE_GLOB_H) check_include_file (inttypes.h HAVE_INTTYPES_H) -check_include_file (libunwind.h HAVE_LIBUNWIND_H) check_include_file (memory.h HAVE_MEMORY_H) check_include_file (pwd.h HAVE_PWD_H) check_include_file (stdint.h HAVE_STDINT_H) @@ -78,7 +77,6 @@ check_include_file (syscall.h HAVE_SYSCALL_H) check_include_file (syslog.h HAVE_SYSLOG_H) check_include_file (ucontext.h HAVE_UCONTEXT_H) check_include_file (unistd.h HAVE_UNISTD_H) -check_include_file (unwind.h HAVE_UNWIND_H) check_include_file (pwd.h HAVE_PWD_H) check_include_file_cxx ("ext/hash_map" HAVE_EXT_HASH_MAP) @@ -114,11 +112,9 @@ check_cxx_compiler_flag (-Wunnamed-type-template-args # snprintf as an inline function check_symbol_exists (snprintf stdio.h HAVE_SNPRINTF) -check_library_exists (unwind get_static_proc_name "" HAVE_LIB_UNWIND) check_library_exists (dbghelp UnDecorateSymbolName "" HAVE_DBGHELP) -find_library (UNWIND_LIBRARY NAMES unwind DOC "unwind library") -mark_as_advanced (UNWIND_LIBRARY) +find_package(Libunwind) check_c_source_compiles (" #include @@ -463,9 +459,9 @@ add_library(glog::glog ALIAS glog) set_target_properties (glog PROPERTIES POSITION_INDEPENDENT_CODE ON) -if (UNWIND_LIBRARY) - target_link_libraries (glog PUBLIC ${UNWIND_LIBRARY}) -endif (UNWIND_LIBRARY) +if (Libunwind_FOUND) + target_link_libraries (glog PUBLIC unwind) +endif (Libunwind_FOUND) if (HAVE_DBGHELP) target_link_libraries (glog PUBLIC dbghelp) @@ -669,6 +665,7 @@ export (PACKAGE glog) install (FILES ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake + ${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindLibunwind.cmake DESTINATION ${_glog_CMake_INSTALLDIR}) install (EXPORT glog-targets NAMESPACE glog:: DESTINATION diff --git a/cmake/FindLibunwind.cmake b/cmake/FindLibunwind.cmake new file mode 100644 index 000000000..93c936cdd --- /dev/null +++ b/cmake/FindLibunwind.cmake @@ -0,0 +1,37 @@ +# - Try to find libunwind +# Once done this will define +# +# LIBUNWIND_FOUND - system has libunwind +# unwind - cmake target for libunwind + +find_library (UNWIND_LIBRARY NAMES unwind DOC "unwind library") +include (CheckIncludeFile) +check_include_file (libunwind.h HAVE_LIBUNWIND_H) +check_include_file (unwind.h HAVE_UNWIND_H) + +if (CMAKE_SYSTEM_PROCESSOR MATCHES "^arm") + set(LIBUNWIND_ARCH "arm") +elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR + CMAKE_SYSTEM_PROCESSOR STREQUAL "amd64" OR + set(LIBUNWIND_ARCH "x86_64") +elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$") + set(LIBUNWIND_ARCH "x86") +endif() + +find_library (UNWIND_LIBRARY_PLATFORM NAMES "unwind-${LIBUNWIND_ARCH}" DOC "unwind library platform") +if (UNWIND_LIBRARY_PLATFORM) + set(HAVE_LIB_UNWIND "1") +endif() + +include(FindPackageHandleStandardArgs) +# handle the QUIETLY and REQUIRED arguments and set Libunwind_FOUND to TRUE +# if all listed variables are TRUE +find_package_handle_standard_args(Libunwind DEFAULT_MSG + UNWIND_LIBRARY HAVE_LIBUNWIND_H HAVE_UNWIND_H HAVE_LIB_UNWIND) + +mark_as_advanced (UNWIND_LIBRARY UNWIND_LIBRARY_PLATFORM) + +add_library(unwind INTERFACE IMPORTED) +set_target_properties(unwind PROPERTIES + INTERFACE_LINK_LIBRARIES "${UNWIND_LIBRARY};${UNWIND_LIBRARY_PLATFORM}" +) diff --git a/glog-config.cmake.in b/glog-config.cmake.in index aabdedc3e..1c680acad 100644 --- a/glog-config.cmake.in +++ b/glog-config.cmake.in @@ -8,4 +8,15 @@ include (CMakeFindDependencyMacro) @gflags_DEPENDENCY@ +# Record the state of the CMake module path when this script was +# called so that we can ensure that we leave it in the same state on +# exit as it was on entry, but modify it locally. +set(UNWIND_CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}) + +set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}") +find_dependency (Libunwind) + +# Restore original module path +set(CMAKE_MODULE_PATH "${UNWIND_CMAKE_MODULE_PATH}") + include ("${CMAKE_CURRENT_LIST_DIR}/glog-targets.cmake")