build: -Wno-stringop-overflow during LTO phase

[vpp.git] / src / CMakeLists.txt

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1730e7b..3966bc3 100644 (file)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -14,6 +14,7 @@
 cmake_minimum_required(VERSION 3.10)
 
 set(CMAKE_C_COMPILER_NAMES
+  clang-13
   clang-12
   clang-11
   clang-10
@@ -33,8 +34,13 @@ if(CMAKE_VERSION VERSION_LESS 3.12)
   endmacro()
 endif()
 
+if(NOT DEFINED CMAKE_INSTALL_LIBDIR AND EXISTS "/etc/debian_version")
+  set(CMAKE_INSTALL_LIBDIR "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
+endif()
+
 include(CheckCCompilerFlag)
 include(CheckIPOSupported)
+include(GNUInstallDirs)
 include(cmake/misc.cmake)
 include(cmake/cpu.cmake)
 include(cmake/ccache.cmake)
@@ -67,12 +73,13 @@ set(CMAKE_C_COMPILER_TARGET ${CMAKE_SYSTEM_PROCESSOR}-linux-gnu)
 ##############################################################################
 check_c_compiler_flag("-Wno-address-of-packed-member"
                      compiler_flag_no_address_of_packed_member)
-set(VPP_RUNTIME_DIR "bin" CACHE STRING "Relative runtime directory path")
-set(VPP_LIBRARY_DIR "lib" CACHE STRING "Relative library directory path")
+set(VPP_RUNTIME_DIR ${CMAKE_INSTALL_BINDIR} CACHE STRING "Relative runtime directory path")
+set(VPP_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING "Relative library directory path")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_RUNTIME_DIR})
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_LIBRARY_DIR})
 set(VPP_BINARY_DIR ${CMAKE_BINARY_DIR}/CMakeFiles)
+set(PYENV PYTHONPYCACHEPREFIX=${CMAKE_BINARY_DIR}/CMakeFile/__pycache__)
 
 if (CMAKE_BUILD_TYPE)
   add_compile_options(-g -fPIC -Werror -Wall)
@@ -91,7 +98,7 @@ set(CMAKE_C_FLAGS_DEBUG "")
 if (${CMAKE_BUILD_TYPE_LC} MATCHES "release")
   add_compile_options(-O3 -fstack-protector -fno-common)
   add_compile_definitions(_FORTIFY_SOURCE=2)
-  string(CONCAT CMAKE_EXE_LINKER_FLAGS_RELEASE "-pie")
+  set(CMAKE_EXE_LINKER_FLAGS_RELEASE "-pie")
 elseif (${CMAKE_BUILD_TYPE_LC} MATCHES "debug")
   add_compile_options(-O0 -fstack-protector -fno-common)
   add_compile_definitions(CLIB_DEBUG)
@@ -118,6 +125,10 @@ if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
   endif()
 endif()
 
+if(VPP_USE_LTO)
+  check_c_compiler_flag("-Wno-stringop-overflow"
+                       compiler_flag_no_stringop_overflow)
+endif()
 ##############################################################################
 # sanitizers
 ##############################################################################
@@ -150,7 +161,7 @@ endif()
 ##############################################################################
 option(VPP_SET_RPATH "Set rpath for resulting binaries and libraries." ON)
 if(VPP_SET_RPATH)
-  set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+  set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${VPP_LIBRARY_DIR}")
 endif()
 set(CMAKE_INSTALL_MESSAGE NEVER)
 
@@ -178,8 +189,8 @@ if(VPP_HOST_TOOLS_ONLY)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
   find_package(OpenSSL)
   set(SUBDIRS
-    vppinfra svm vlib vlibmemory vlibapi vnet vpp vat vat2 vcl plugins
-    vpp-api tools/vppapigen tools/g2 tools/perftool cmake pkg
+    vppinfra svm vlib vlibmemory vlibapi vnet vpp vat vat2 vcl vpp-api
+    plugins tools/vppapigen tools/g2 tools/perftool cmake pkg
     tools/appimage
   )
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
@@ -254,14 +265,16 @@ mark_as_advanced(CLEAR
 # print configuration
 ##############################################################################
 message(STATUS "Configuration:")
-pr("VPP version" "${VPP_VERSION}")
-pr("VPP library version" "${VPP_LIB_VERSION}")
-pr("GIT toplevel dir" "${VPP_GIT_TOPLEVEL_DIR}")
-pr("Build type" "${CMAKE_BUILD_TYPE}")
-pr("C flags" "${CMAKE_C_FLAGS}${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
-pr("Linker flags (apps)" "${CMAKE_EXE_LINKER_FLAGS}${CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
-pr("Linker flags (libs)" "${CMAKE_SHARED_LINKER_FLAGS}${CMAKE_SHARED_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
-pr("Host processor" "${CMAKE_HOST_SYSTEM_PROCESSOR}")
-pr("Target processor" "${CMAKE_SYSTEM_PROCESSOR}")
-pr("Prefix path" "${CMAKE_PREFIX_PATH}")
-pr("Install prefix" "${CMAKE_INSTALL_PREFIX}")
+pr("VPP version" ${VPP_VERSION})
+pr("VPP library version" ${VPP_LIB_VERSION})
+pr("GIT toplevel dir" ${VPP_GIT_TOPLEVEL_DIR})
+pr("Build type" ${CMAKE_BUILD_TYPE})
+pr("C compiler" ${CMAKE_C_COMPILER})
+pr("C flags" ${CMAKE_C_FLAGS}${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE_UC}})
+pr("Linker flags (apps)" ${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}})
+pr("Linker flags (libs)" ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}})
+pr("Host processor" ${CMAKE_HOST_SYSTEM_PROCESSOR})
+pr("Target processor" ${CMAKE_SYSTEM_PROCESSOR})
+pr("Prefix path" ${CMAKE_PREFIX_PATH})
+pr("Install prefix" ${CMAKE_INSTALL_PREFIX})
+pr("Library dir" ${VPP_LIBRARY_DIR})