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Moved some android compiler flags and added documentation on them too.

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This commit is contained in:
Hristo Stamenov 2021-01-26 14:19:04 +02:00
parent 401b680218
commit b3c336b7fb
2 changed files with 42 additions and 25 deletions
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22
cmake/CompilerFlags.cmake
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@ -55,3 +55,25 @@ if(CMAKE_VERSION VERSION_LESS "3.1")
else() else()
set (CMAKE_C_STANDARD 99) set (CMAKE_C_STANDARD 99)
endif() endif()
if(${PLATFORM} MATCHES "Android")
# If enabled will remove dead code during the linking process
# https://gcc.gnu.org/onlinedocs/gnat_ugn/Compilation-options.html
add_if_flag_compiles(-ffunction-sections CMAKE_C_FLAGS)
# If enabled will generate some exception data (usually disabled for C programs)
# https://gcc.gnu.org/onlinedocs/gcc-4.2.4/gcc/Code-Gen-Options.html
add_if_flag_compiles(-funwind-tables CMAKE_C_FLAGS)
# If enabled adds stack protection guards around functions that allocate memory
# https://www.keil.com/support/man/docs/armclang_ref/armclang_ref_cjh1548250046139.htm
add_if_flag_compiles(-fstack-protector-strong CMAKE_C_FLAGS)
# Marks that the library will not be compiled with an executable stack
add_if_flag_compiles(-Wa,--noexecstack CMAKE_C_FLAGS)
# Do not expand symbolic links or resolve paths like "/./" or "/../", etc.
# https://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html
add_if_flag_compiles(-no-canonical-prefixes CMAKE_C_FLAGS)
endif()

9
cmake/LibraryConfigurations.cmake
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@ -32,19 +32,14 @@ if(${PLATFORM} MATCHES "Desktop")
elseif (${PLATFORM} MATCHES "Web") elseif (${PLATFORM} MATCHES "Web")
set(PLATFORM_CPP "PLATFORM_WEB") set(PLATFORM_CPP "PLATFORM_WEB")
set(GRAPHICS "GRAPHICS_API_OPENGL_ES2") set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
set(CMAKE_C_FLAGS "-s USE_GLFW=3 -s ASSERTIONS=1 --profiling") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s USE_GLFW=3 -s ASSERTIONS=1 --profiling")
set(CMAKE_STATIC_LIBRARY_SUFFIX ".a") set(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
elseif (${PLATFORM} MATCHES "Android") elseif (${PLATFORM} MATCHES "Android")
set(PLATFORM_CPP "PLATFORM_ANDROID") set(PLATFORM_CPP "PLATFORM_ANDROID")
set(GRAPHICS "GRAPHICS_API_OPENGL_ES2") set(GRAPHICS "GRAPHICS_API_OPENGL_ES2")
include(AddIfFlagCompiles)
add_if_flag_compiles(-ffunction-sections CMAKE_C_FLAGS)
add_if_flag_compiles(-funwind-tables CMAKE_C_FLAGS)
add_if_flag_compiles(-fstack-protector-strong CMAKE_C_FLAGS)
set(CMAKE_POSITION_INDEPENDENT_CODE ON) set(CMAKE_POSITION_INDEPENDENT_CODE ON)
add_if_flag_compiles(-Wa,--noexecstack CMAKE_C_FLAGS)
add_if_flag_compiles(-no-canonical-prefixes CMAKE_C_FLAGS)
add_definitions(-DANDROID -D__ANDROID_API__=21) add_definitions(-DANDROID -D__ANDROID_API__=21)
include_directories(external/android/native_app_glue) include_directories(external/android/native_app_glue)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--warn-shared-textrel -Wl,--fatal-warnings -uANativeActivity_onCreate") set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--warn-shared-textrel -Wl,--fatal-warnings -uANativeActivity_onCreate")