Logo AND Algorithmique Numérique Distribuée

Public GIT Repository
remove some more cruft related to gcc v4.6 (we request v4.7)
[simgrid.git] / buildtools / Cmake / Flags.cmake
index eb9d3f4..8072d1d 100644 (file)
@@ -1,34 +1,39 @@
+##
+## This file is in charge of setting our paranoid flags with regard to warnings and optimization.
+##
+##   These flags do break some classical CMake tests, so you don't
+##   want to do so before the very end of the configuration.
+## 
+##   Other compiler flags (C/C++ standard version) are tested and set
+##   by the beginning of the configuration, directly in ~/CMakeList.txt
+
 set(warnCFLAGS "")
 set(optCFLAGS "")
 
-if(NOT __VISUALC__ AND NOT __BORLANDC__)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}-std=gnu99 -g3")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}-g3")
-  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
-else()
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}/Zi")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}/Zi")
-endif()
+
 
 if(enable_compile_warnings)
   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 ")
-  if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+  if(CMAKE_COMPILER_IS_GNUCC)
     set(warnCFLAGS "${warnCFLAGS}-Wclobbered -Wno-error=clobbered ")
-    if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
-      set(warnCFLAGS "${warnCFLAGS}-Wno-error=unused-but-set-variable ")
-    endif()
   endif()
 
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
-
-  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -Wall") # FIXME: Q&D hack
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra  -Wunused -Wpointer-arith -Wchar-subscripts -Wcomment  -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror")
+  if(CMAKE_COMPILER_IS_GNUCXX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wclobbered -Wno-error=clobbered")
+  endif()
+  if (CMAKE_CXX_COMPILER_ID MATCHES "Clang") # don't care about class that become struct
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-mismatched-tags")
+  endif()
 
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -Wall")
   set(CMAKE_JAVA_COMPILE_FLAGS "-Xlint")
 endif()
 
 if(enable_compile_optimizations)
-  set(optCFLAGS "-O3 -finline-functions -funroll-loops -fno-strict-aliasing ")
-  if(CMAKE_COMPILER_IS_GNUCC)
+  set(optCFLAGS "-O3 -funroll-loops -fno-strict-aliasing ")
+  if(CMAKE_COMPILER_IS_GNUCC AND (NOT enable_model-checking))
+    set(optCFLAGS "${optCFLAGS} -finline-functions ")
     if(WIN32)
       if (COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.7")
       # On windows, we need 4.8 or higher to enable lto because of http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50293
@@ -36,7 +41,7 @@ if(enable_compile_optimizations)
       endif()
     else()    
       # On non-windows, 4.6 is enough for that
-      if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
+      if(LINKER_VERSION STRGREATER "2.22")
         set(optCFLAGS "${optCFLAGS} -flto ")
       endif()
     endif()
@@ -45,26 +50,55 @@ else()
   set(optCFLAGS "-O0 ")
 endif()
 
-if(APPLE AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
+if(enable_sdt)
+  add_definitions(-DUSE_SDT)
+endif()
+
+if(enable_ust)
+  add_definitions(-DUSE_UST)
+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:
+  foreach(s
+      src/xbt/mmalloc/mm.c
+      src/xbt/log.c src/xbt/xbt_log_appender_file.c
+      src/xbt/xbt_log_layout_format.c src/xbt/xbt_log_layout_simple.c
+      src/xbt/dict.c src/xbt/dict_elm.c src/xbt/dict_multi.c src/xbt/dict_cursor.c
+      src/xbt/set.c src/xbt/setset.c
+      src/xbt/dynar.c src/xbt/fifo.c src/xbt/heap.c src/xbt/swag.c
+      src/xbt/str.c src/xbt/strbuff.c src/xbt/snprintf.c
+      src/xbt/queue.c
+      src/xbt/xbt_os_time.c src/xbt/xbt_os_thread.c
+      src/xbt/sha.c
+      src/xbt/matrix.c
+      src/xbt/backtrace_linux.c
+      ${MC_SRC_BASE} ${MC_SRC})
+      set (mcCFLAGS "-O3  -funroll-loops -fno-strict-aliasing")
+       if(CMAKE_COMPILER_IS_GNUCC)
+         set (mcCFLAGS "${mcCFLAGS} -finline-functions")
+      endif()
+      set_source_files_properties(${s} PROPERTIES COMPILE_FLAGS ${mcCFLAGS})
+  endforeach()
 endif()
 
 if(NOT enable_debug)
   set(CMAKE_C_FLAGS "-DNDEBUG ${CMAKE_C_FLAGS}")
+  set(CMAKE_CXX_FLAGS "-DNDEBUG ${CMAKE_CXX_FLAGS}")
 endif()
 
 if(enable_msg_deprecated)
   set(CMAKE_C_FLAGS "-DMSG_USE_DEPRECATED ${CMAKE_C_FLAGS}")
 endif()
 
-set(CMAKE_C_FLAGS "${optCFLAGS}${warnCFLAGS}${CMAKE_C_FLAGS}")
-
+set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   ${optCFLAGS} ${warnCFLAGS}")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${optCFLAGS}")
 
 # Try to make Mac a bit more complient to open source standards
 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE")
 endif()
 
 set(TESH_OPTION "")
@@ -96,7 +130,3 @@ if(NOT $ENV{LDFLAGS} STREQUAL "")
   message(STATUS "Add LDFLAGS: \"$ENV{LDFLAGS}\" to CMAKE_C_LINK_FLAGS")
   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} $ENV{LDFLAGS}")
 endif()
-
-if(enable_model-checking AND enable_compile_optimizations)
-  message(WARNING "Sorry for now GCC optimizations does not work with model checking.\nPlease turn off optimizations with command:\ncmake -Denable_compile_optimizations=off .")
-endif()