X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6fbcdfade89b3812c24152c86f8aa3be510df7f2..48eccdedf267be53404bbb09301084e47f1648ec:/tools/cmake/Flags.cmake diff --git a/tools/cmake/Flags.cmake b/tools/cmake/Flags.cmake index 2c71772f11..e7ba000eb3 100644 --- a/tools/cmake/Flags.cmake +++ b/tools/cmake/Flags.cmake @@ -1,7 +1,7 @@ ## ## This file is in charge of setting our paranoid flags with regard to warnings and optimization. ## -## It is only used for gcc and clang. MSVC builds don't load this file. +## It is only used for gcc, clang and Intel compilers. ## ## These flags do break some classical CMake tests, so you don't ## want to do so before the very end of the configuration. @@ -14,7 +14,7 @@ set(optCFLAGS "") set(warnCXXFLAGS "") if(enable_compile_warnings) - set(warnCFLAGS "-fno-common -Wall -Wextra -Wunused -Wmissing-declarations -Wpointer-arith -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing") + set(warnCFLAGS "-fno-common -Wall -Wextra -Wunused -Wmissing-declarations -Wpointer-arith -Wwrite-strings -Wno-unused-function -Wno-unused-local-typedefs -Wno-unused-parameter -Wno-strict-aliasing") if (CMAKE_CXX_COMPILER_ID MATCHES "Intel") # ignore remarks: @@ -32,7 +32,7 @@ if(enable_compile_warnings) set(warnCXXFLAGS "${warnCFLAGS}") if(CMAKE_COMPILER_IS_GNUCC) - set(warnCFLAGS "${warnCFLAGS} -Wclobbered -Wformat-signedness -Wno-error=clobbered -Wno-unused-local-typedefs -Wno-error=attributes -Wno-error=maybe-uninitialized") + set(warnCFLAGS "${warnCFLAGS} -Wclobbered -Wformat-signedness -Wno-error=clobbered -Wno-error=attributes -Wno-error=maybe-uninitialized") endif() if(CMAKE_COMPILER_IS_GNUCXX) @@ -77,13 +77,12 @@ if(enable_compile_warnings AND enable_debug) endif() # Activate the warnings on #if FOOBAR when FOOBAR has no value -# It breaks on FreeBSD within Boost headers, so activate this only in Pure Hardcore debug mode. -if(enable_maintainer_mode) +if("${CMAKE_SYSTEM}" MATCHES "Linux") # Breaks on FreeBSD within Boost headers :( set(warnCFLAGS "${warnCFLAGS} -Wundef") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wundef") endif() -# Se the optimisation flags +# Set the optimisation flags # NOTE, we should CMAKE_BUILD_TYPE for this if(enable_compile_optimizations) set(optCFLAGS "-O3 -funroll-loops -fno-strict-aliasing ") @@ -91,27 +90,24 @@ else() set(optCFLAGS "-O0 ") endif() -#ARM platforms have signed char by default, switch to unsigned for consistancy +# ARM platforms have signed char by default, switch to unsigned for consistancy if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64") set(optCFLAGS "${optCFLAGS} -fsigned-char") endif() -if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC - AND (NOT enable_model-checking)) +if(enable_compile_optimizations AND CMAKE_COMPILER_IS_GNUCC) # This is redundant (already in -03): set(optCFLAGS "${optCFLAGS} -finline-functions ") endif() # Do not leak the current directory into the binaries if(CMAKE_COMPILER_IS_GNUCC AND NOT enable_coverage) - execute_process(COMMAND realpath --relative-to=${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR} - RESULT_VARIABLE RESULT OUTPUT_VARIABLE RELATIVE_SOURCE_DIR ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE) - if(RESULT EQUAL 0) - message(STATUS "Relative source directory is \"${RELATIVE_SOURCE_DIR}\".") - else() - message(WARNING "Failed to find relative source directory. Using \".\".") - set(RELATIVE_SOURCE_DIR ".") + if (CMAKE_VERSION VERSION_LESS "3.20") + file(RELATIVE_PATH RELATIVE_SOURCE_DIR ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}) + else() # cmake >= 3.20 + cmake_path(RELATIVE_PATH CMAKE_SOURCE_DIR BASE_DIRECTORY ${CMAKE_BINARY_DIR} OUTPUT_VARIABLE RELATIVE_SOURCE_DIR) endif() + message(STATUS "Relative source directory is \"${RELATIVE_SOURCE_DIR}\".") if (CMAKE_C_COMPILER_VERSION VERSION_LESS "8.0") set(optCFLAGS "${optCFLAGS} -fdebug-prefix-map=\"${CMAKE_SOURCE_DIR}=${RELATIVE_SOURCE_DIR}\"") else() @@ -122,20 +118,11 @@ endif() # Configure LTO if(enable_lto) # User wants LTO. Try if we can do that set(enable_lto OFF) - if(enable_compile_optimizations - AND (NOT enable_model-checking)) - if(CMAKE_VERSION VERSION_LESS "3.9") - if ( CMAKE_COMPILER_IS_GNUCC - AND (CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.8.5") - AND (LINKER_VERSION VERSION_GREATER "2.22")) - set(enable_lto ON) - endif() - else() - include(CheckIPOSupported) - check_ipo_supported(RESULT ipo LANGUAGES C CXX) - if(ipo) - set(enable_lto ON) - endif() + if(enable_compile_optimizations) + include(CheckIPOSupported) + check_ipo_supported(RESULT ipo LANGUAGES C CXX) + if(ipo) + set(enable_lto ON) endif() endif() @@ -145,11 +132,7 @@ if(enable_lto) # User wants LTO. Try if we can do that if(NOT enable_compile_optimizations) message(STATUS "LTO disabled: Compile-time optimizations turned off.") else() - if(enable_model-checking) - message(STATUS "LTO disabled when compiling with model-checking.") - else() - message(STATUS "LTO does not seem usable -- try updating your build chain.") - endif() + message(STATUS "LTO does not seem usable -- try updating your build chain.") endif() endif() else() @@ -182,25 +165,6 @@ if(enable_lto) # User wants LTO, and it seems usable. Go for it endif() endif() -if(enable_model-checking AND enable_compile_optimizations) - # Forget it, do not optimize the code (because it confuses the MC): - set(optCFLAGS "-O0") - # But you can still optimize this: - set(src_list ${simgrid_sources}) - # except... - list(REMOVE_ITEM src_list ${SIMIX_SRC} ${S4U_SRC}) - # but... - list(APPEND src_list - src/kernel/actor/Simcall.cpp) - foreach(src ${src_list}) - set (mcCFLAGS "-O3 -funroll-loops -fno-strict-aliasing") - if(CMAKE_COMPILER_IS_GNUCC) - set (mcCFLAGS "${mcCFLAGS} -finline-functions") - endif() - set_source_files_properties(${src} PROPERTIES COMPILE_FLAGS ${mcCFLAGS}) - endforeach() -endif() - if (CMAKE_C_COMPILER_ID MATCHES "Intel") # honor parentheses when determining the order of expression evaluation. # disallow optimizations for floating-point arithmetic with Nans or +-Infs (breaks Eigen3) @@ -220,11 +184,6 @@ if(CMAKE_SYSTEM_NAME MATCHES "Darwin") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE") endif() -# Avoid a failure seen with gcc 7.2.0 and ns3 3.27 -if(enable_ns3) - set_source_files_properties(src/surf/network_ns3.cpp PROPERTIES COMPILE_FLAGS " -Wno-unused-local-typedef") -endif() - set(TESH_OPTION "") if(enable_coverage) find_program(GCOV_PATH NAMES ENV{GCOV} gcov)