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      1 #-------------------------------------------------------------------------
      2 # drawElements CMake utilities
      3 # ----------------------------
      4 #
      5 # Copyright 2014 The Android Open Source Project
      6 #
      7 # Licensed under the Apache License, Version 2.0 (the "License");
      8 # you may not use this file except in compliance with the License.
      9 # You may obtain a copy of the License at
     10 #
     11 #      http://www.apache.org/licenses/LICENSE-2.0
     12 #
     13 # Unless required by applicable law or agreed to in writing, software
     14 # distributed under the License is distributed on an "AS IS" BASIS,
     15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16 # See the License for the specific language governing permissions and
     17 # limitations under the License.
     18 #
     19 #-------------------------------------------------------------------------
     20 
     21 set(DE_COVERAGE_BUILD "OFF" CACHE STRING "Build with coverage instrumentation with GCC (ON/OFF)")
     22 
     23 if (NOT DE_DEFS)
     24 	message(FATAL_ERROR "Defs.cmake is not included")
     25 endif ()
     26 
     27 if (DE_COMPILER_IS_GCC OR DE_COMPILER_IS_CLANG)
     28 	# Compiler flags for GCC/Clang
     29 
     30 	set(TARGET_FLAGS "")
     31 
     32 	if (DE_COVERAGE_BUILD)
     33 		if (not DE_COMPILER_IS_GCC)
     34 			message(FATAL_ERROR "Coverage build requires GCC")
     35 		endif ()
     36 
     37 		add_definitions("-DDE_COVERAGE_BUILD")
     38 		set(TARGET_FLAGS	"-fprofile-arcs -ftest-coverage")
     39 		set(LINK_FLAGS		"${LINK_FLAGS} -lgcov")
     40 	endif ()
     41 
     42 	# For 3rd party sw disable all warnings
     43 	set(DE_3RD_PARTY_C_FLAGS	"${CMAKE_C_FLAGS} ${TARGET_FLAGS} -w")
     44 	set(DE_3RD_PARTY_CXX_FLAGS	"${CMAKE_CXX_FLAGS} ${TARGET_FLAGS} -w")
     45 
     46 	# \note Remove -Wno-sign-conversion for more warnings
     47 	set(WARNING_FLAGS			"-Wall -Wextra -Wno-long-long -Wshadow -Wundef -Wconversion -Wno-sign-conversion")
     48 
     49 	set(CMAKE_C_FLAGS			"${CMAKE_C_FLAGS} ${TARGET_FLAGS} ${WARNING_FLAGS} -ansi -pedantic ")
     50 	set(CMAKE_CXX_FLAGS			"${CMAKE_CXX_FLAGS} ${TARGET_FLAGS} ${WARNING_FLAGS}")
     51 
     52 	# Force compiler to generate code where integers have well defined overflow
     53 	# Turn on -Wstrict-overflow=5 and check all warnings before removing
     54 	set(CMAKE_C_FLAGS			"${CMAKE_C_FLAGS} -fwrapv")
     55 	set(CMAKE_CXX_FLAGS			"${CMAKE_CXX_FLAGS} -fwrapv")
     56 elseif (DE_COMPILER_IS_MSC)
     57 	# Compiler flags for msc
     58 
     59 	# \note Following unnecessary nagging warnings are disabled:
     60 	# 4820: automatic padding added after data
     61 	# 4255: no function prototype given (from system headers)
     62 	# 4668: undefined identifier in preprocessor expression (from system headers)
     63 	# 4738: storing 32-bit float result in memory
     64 	# 4711: automatic inline expansion
     65 	set(MSC_BASE_FLAGS "/DWIN32 /D_WINDOWS /D_CRT_SECURE_NO_WARNINGS")
     66 	set(MSC_WARNING_FLAGS "/W3 /wd4820 /wd4255 /wd4668 /wd4738 /wd4711")
     67 
     68 	# For 3rd party sw disable all warnings
     69 	set(DE_3RD_PARTY_C_FLAGS	"${CMAKE_C_FLAGS} ${MSC_BASE_FLAGS} /W0")
     70 	set(DE_3RD_PARTY_CXX_FLAGS	"${CMAKE_CXX_FLAGS} ${MSC_BASE_FLAGS} /W0")
     71 
     72 	set(CMAKE_C_FLAGS			"${CMAKE_C_FLAGS} ${MSC_BASE_FLAGS} ${MSC_WARNING_FLAGS}")
     73 	set(CMAKE_CXX_FLAGS			"${CMAKE_CXX_FLAGS} ${MSC_BASE_FLAGS} ${MSC_WARNING_FLAGS}")
     74 
     75 else ()
     76 	message(FATAL_ERROR "DE_COMPILER is not valid")
     77 endif ()
     78