[CMAKE]

- Improve help strings for GCC optimization levels.
- Add new -Ofast and -Og levels.
- Simplify gcc.cmake a bit.
- Use MINGW_TOOLCHAIN_SUFFIX.

svn path=/trunk/; revision=58201

reactos/cmake/config-amd64.cmake

@@ -7,13 +7,15 @@ set(OARCH "athlon64" CACHE STRING
  k8 opteron athlon64 athlon-fx")
 
 set (OPTIMIZE "1" CACHE STRING
-"What level of optimisation to use.
+"What level of optimization to use.
  0 = off
  1 = Default option, optimize for size (-Os) with some additional options
-  2 = -Os
+ 2 = Optimize for size (-Os)
-  3 = -O1
+ 3 = Optimize debugging experience (-Og)
-  4 = -O2
+ 4 = Optimize (-O1)
-  5 = -O3")
+ 5 = Optimize even more (-O2)
+ 6 = Optimize yet more (-O3)
+ 7 = Disregard strict standards compliance (-Ofast)")
 
 set(LTCG FALSE CACHE BOOL
 "Whether to build with link-time code generation")

reactos/cmake/config-arm.cmake

@@ -8,13 +8,15 @@ set(OARCH "armv7-a" CACHE STRING
  armv5te armv7-a")
 
 set (OPTIMIZE "1" CACHE STRING
-"What level of optimisation to use.
+"What level of optimization to use.
  0 = off
  1 = Default option, optimize for size (-Os) with some additional options
-  2 = -Os
+ 2 = Optimize for size (-Os)
-  3 = -O1
+ 3 = Optimize debugging experience (-Og)
-  4 = -O2
+ 4 = Optimize (-O1)
-  5 = -O3")
+ 5 = Optimize even more (-O2)
+ 6 = Optimize yet more (-O3)
+ 7 = Disregard strict standards compliance (-Ofast)")
 
 set(LTCG FALSE CACHE BOOL
 "Whether to build with link-time code generation")

reactos/cmake/config.cmake

@@ -1,25 +1,25 @@
 
 set(SARCH "pc" CACHE STRING
-"Sub-architecture to build for. Specify one of: xbox")
+"Sub-architecture to build for. Specify one of:
+ pc xbox")
 
 set(OARCH "pentium" CACHE STRING
 "Generate instructions for this CPU type. Specify one of:
- native, i386, i486, pentium, pentium-mmx, pentiumpro, i686,
+ pentium, pentiumpro")
- pentium2, pentium3, pentium-m, pentium4, prescott, nocona,
- core2, k6, k6-2, athlon, athlon-xp, opteron, opteron-sse3,
- barcelona, winchip-c6, winchip2, c3, c3-2, geode")
 
 set(TUNE "i686" CACHE STRING
 "Which CPU ReactOS should be optimized for.")
 
 set(OPTIMIZE "1" CACHE STRING
-"What level of optimisation to use.
+"What level of optimization to use.
  0 = off
  1 = Default option, optimize for size (-Os) with some additional options
-  2 = -Os
+ 2 = Optimize for size (-Os)
-  3 = -O1
+ 3 = Optimize debugging experience (-Og)
-  4 = -O2
+ 4 = Optimize (-O1)
-  5 = -O3")
+ 5 = Optimize even more (-O2)
+ 6 = Optimize yet more (-O3)
+ 7 = Disregard strict standards compliance (-Ofast)")
 
 set(LTCG FALSE CACHE BOOL
 "Whether to build with link-time code generation")

reactos/cmake/gcc.cmake

@@ -10,7 +10,7 @@ if(NOT DEFINED SEPARATE_DBG)
 endif()
 
 # Compiler Core
-add_compile_flags("-pipe -fms-extensions")
+add_compile_flags("-pipe -fms-extensions -fno-strict-aliasing")
 
 #bug
 #file(TO_NATIVE_PATH ${REACTOS_SOURCE_DIR} REACTOS_SOURCE_DIR_NATIVE)
@@ -28,9 +28,6 @@ else()
     add_compile_flags("-gstabs+")
 endif()
 
-# Do not allow warnings
-add_compile_flags("-Werror")
-
 # For some reason, cmake sets -fPIC, and we don't want it
 if(DEFINED CMAKE_SHARED_LIBRARY_ASM_FLAGS)
     string(REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_ASM_FLAGS ${CMAKE_SHARED_LIBRARY_ASM_FLAGS})
@@ -44,7 +41,7 @@ else()
 endif()
 
 # Warnings
-add_compile_flags("-Wall -Wno-char-subscripts -Wpointer-arith -Wno-multichar -Wno-unused-value")
+add_compile_flags("-Werror -Wall -Wno-char-subscripts -Wpointer-arith -Wno-multichar -Wno-unused-value")
 
 if(GCC_VERSION VERSION_LESS 4.6)
     add_compile_flags("-Wno-error=uninitialized")
@@ -62,15 +59,19 @@ endif()
 
 # Optimizations
 if(OPTIMIZE STREQUAL "1")
-    add_compile_flags("-Os")
+    add_compile_flags("-Os -ftracer")
 elseif(OPTIMIZE STREQUAL "2")
     add_compile_flags("-Os")
 elseif(OPTIMIZE STREQUAL "3")
-    add_compile_flags("-O1")
+    add_compile_flags("-O1 -fno-inline-functions-called-once -fno-tree-sra")
 elseif(OPTIMIZE STREQUAL "4")
-    add_compile_flags("-O2")
+    add_compile_flags("-O1")
 elseif(OPTIMIZE STREQUAL "5")
+    add_compile_flags("-O2")
+elseif(OPTIMIZE STREQUAL "6")
     add_compile_flags("-O3")
+elseif(OPTIMIZE STREQUAL "7")
+    add_compile_flags("-Ofast")
 endif()
 
 # Link-time code generation
@@ -78,25 +79,13 @@ if(LTCG)
     add_compile_flags("-flto -Wno-error=clobbered")
 endif()
 
-add_compile_flags("-fno-strict-aliasing")
-
 if(ARCH STREQUAL "i386")
     add_compile_flags("-mpreferred-stack-boundary=3 -fno-set-stack-executable -fno-optimize-sibling-calls -fno-omit-frame-pointer")
-    if(OPTIMIZE STREQUAL "1")
-        add_compile_flags("-ftracer")
     if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
         add_compile_flags("-momit-leaf-frame-pointer")
     endif()
-    endif()
 elseif(ARCH STREQUAL "amd64")
     add_compile_flags("-mpreferred-stack-boundary=4")
-    if(OPTIMIZE STREQUAL "1")
-        add_compile_flags("-ftracer")
-    endif()
-elseif(ARCH STREQUAL "arm")
-    if(OPTIMIZE STREQUAL "1")
-        add_compile_flags("-ftracer")
-    endif()
 endif()
 
 # Other
@@ -174,7 +163,7 @@ SET(CMAKE_CXX_COMPILE_OBJECT "${CCACHE} <CMAKE_CXX_COMPILER>  <DEFINES> <FLAGS>
 set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -x assembler-with-cpp -o <OBJECT> -I${REACTOS_SOURCE_DIR}/include/asm -I${REACTOS_BINARY_DIR}/include/asm <FLAGS> <DEFINES> -D__ASM__ -c <SOURCE>")
 
 set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff <FLAGS> -DRC_INVOKED -D__WIN32__=1 -D__FLAT__=1 ${I18N_DEFS} <DEFINES> <SOURCE> <OBJECT>")
-set(CMAKE_DEPFILE_FLAGS_RC "--preprocessor \"${MINGW_TOOLCHAIN_PREFIX}gcc -E -xc-header -MMD -MF <DEPFILE> -MT <OBJECT>\" ")
+set(CMAKE_DEPFILE_FLAGS_RC "--preprocessor \"${MINGW_TOOLCHAIN_PREFIX}gcc${MINGW_TOOLCHAIN_SUFFIX} -E -xc-header -MMD -MF <DEPFILE> -MT <OBJECT>\" ")
 
 # Optional 3rd parameter: stdcall stack bytes
 function(set_entrypoint MODULE ENTRYPOINT)