buildtools/Cmake/Flags.cmake

   1 set(warnCFLAGS "")
   2 set(optCFLAGS "")
   3
   4 include(CheckCXXCompilerFlag)
   5
   6 if (CMAKE_COMPILER_IS_GNUCC)
   7   if (COMPILER_C_VERSION_MAJOR_MINOR STRLESS "4.7")
   8     message(FATAL_ERROR "SimGrid needs g++ version 4.7 to compile.")
   9   endif()
  10 endif()
  11
  12 if(NOT __VISUALC__ AND NOT __BORLANDC__)
  13   CHECK_CXX_COMPILER_FLAG("-std=gnu++11" HAVE_CXX11)
  14   CHECK_CXX_COMPILER_FLAG("-std=gnu++0x" HAVE_CXX0X)
  15   if(HAVE_CXX11)
  16     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
  17   elseif(HAVE_CXX0X)
  18     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++0x")
  19   else()
  20     message(FATAL_ERROR "Missing support for C++11.")
  21   endif()
  22 endif()
  23
  24 if(NOT __VISUALC__ AND NOT __BORLANDC__)
  25   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -g3")
  26   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
  27   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
  28 else()
  29   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}/Zi")
  30   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}/Zi")
  31 endif()
  32
  33 if(enable_compile_warnings)
  34   set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")
  35   if(CMAKE_COMPILER_IS_GNUCC)
  36     set(warnCFLAGS "${warnCFLAGS}-Wclobbered -Wno-error=clobbered ")
  37   endif()
  38
  39   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra  -Wunused -Wpointer-arith -Wchar-subscripts -Wcomment  -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror")
  40   if(CMAKE_COMPILER_IS_GNUCXX)
  41     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wclobbered -Wno-error=clobbered")
  42   endif()
  43
  44   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -Wall") # FIXME: Q&D hack
  45
  46   set(CMAKE_JAVA_COMPILE_FLAGS "-Xlint")
  47 endif()
  48
  49 if(enable_compile_optimizations)
  50   set(optCFLAGS "-O3 -funroll-loops -fno-strict-aliasing ")
  51   if(CMAKE_COMPILER_IS_GNUCC AND (NOT enable_model-checking))
  52     set(optCFLAGS "${optCFLAGS} -finline-functions ")
  53     if(WIN32)
  54       if (COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.7")
  55       # On windows, we need 4.8 or higher to enable lto because of http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50293
  56         set(optCFLAGS "${optCFLAGS} -flto ")
  57       endif()
  58     else()
  59       # On non-windows, 4.6 is enough for that
  60       if(LINKER_VERSION STRGREATER "2.22")
  61         set(optCFLAGS "${optCFLAGS} -flto ")
  62       endif()
  63     endif()
  64   endif()
  65 else()
  66   set(optCFLAGS "-O0 ")
  67 endif()
  68
  69 if(enable_sdt)
  70   add_definitions(-DUSE_SDT)
  71 endif()
  72
  73 if(enable_ust)
  74   add_definitions(-DUSE_UST)
  75 endif()
  76
  77 if(enable_model-checking AND enable_compile_optimizations)
  78   # Forget it, do not optimize the code (because it confuses the MC):
  79   set(optCFLAGS "-O0 ")
  80   # But you can still optimize this:
  81   foreach(s
  82       src/xbt/mmalloc/mm.c
  83       src/xbt/log.c src/xbt/xbt_log_appender_file.c
  84       src/xbt/xbt_log_layout_format.c src/xbt/xbt_log_layout_simple.c
  85       src/xbt/dict.c src/xbt/dict_elm.c src/xbt/dict_multi.c src/xbt/dict_cursor.c
  86       src/xbt/set.c src/xbt/setset.c
  87       src/xbt/dynar.c src/xbt/fifo.c src/xbt/heap.c src/xbt/swag.c
  88       src/xbt/str.c src/xbt/strbuff.c src/xbt/snprintf.c
  89       src/xbt/queue.c
  90       src/xbt/xbt_os_time.c src/xbt/xbt_os_thread.c
  91       src/xbt/sha.c
  92       src/xbt/matrix.c
  93       src/xbt/backtrace_linux.c
  94       ${MC_SRC_BASE} ${MC_SRC})
  95       set (mcCFLAGS "-O3  -funroll-loops -fno-strict-aliasing")
  96        if(CMAKE_COMPILER_IS_GNUCC)
  97          set (mcCFLAGS "${mcCFLAGS} -finline-functions")
  98       endif()
  99       set_source_files_properties(${s} PROPERTIES COMPILE_FLAGS ${mcCFLAGS})
 100   endforeach()
 101 endif()
 102
 103 if(APPLE AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
 104   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
 105   set(optCFLAGS "-O0 ")
 106 endif()
 107
 108 if(NOT enable_debug)
 109   set(CMAKE_C_FLAGS "-DNDEBUG ${CMAKE_C_FLAGS}")
 110   set(CMAKE_CXX_FLAGS "-DNDEBUG ${CMAKE_CXX_FLAGS}")
 111 endif()
 112
 113 if(enable_msg_deprecated)
 114   set(CMAKE_C_FLAGS "-DMSG_USE_DEPRECATED ${CMAKE_C_FLAGS}")
 115 endif()
 116
 117 set(CMAKE_C_FLAGS "${optCFLAGS} ${warnCFLAGS} ${CMAKE_C_FLAGS}")
 118
 119 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${optCFLAGS}")
 120
 121 # Try to make Mac a bit more complient to open source standards
 122 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
 123   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE")
 124 endif()
 125
 126 set(TESH_OPTION "")
 127 if(enable_coverage)
 128   find_program(GCOV_PATH gcov)
 129   if(GCOV_PATH)
 130     set(COVERAGE_COMMAND "${GCOV_PATH}" CACHE TYPE FILEPATH FORCE)
 131     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DCOVERAGE")
 132     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
 133     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
 134     set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fprofile-arcs -ftest-coverage")
 135     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
 136     set(TESH_OPTION --enable-coverage)
 137     add_definitions(-fprofile-arcs -ftest-coverage)
 138   endif()
 139 endif()
 140
 141 if(NOT $ENV{CFLAGS} STREQUAL "")
 142   message(STATUS "Add CFLAGS: \"$ENV{CFLAGS}\" to CMAKE_C_FLAGS")
 143   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} $ENV{CFLAGS}")
 144 endif()
 145
 146 if(NOT $ENV{CXXFLAGS} STREQUAL "")
 147   message(STATUS "Add CXXFLAGS: \"$ENV{CXXFLAGS}\" to CMAKE_CXX_FLAGS")
 148   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{CXXFLAGS}")
 149 endif()
 150
 151 if(NOT $ENV{LDFLAGS} STREQUAL "")
 152   message(STATUS "Add LDFLAGS: \"$ENV{LDFLAGS}\" to CMAKE_C_LINK_FLAGS")
 153   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} $ENV{LDFLAGS}")
 154 endif()