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Write a better host CPU arch detection

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This commit is contained in:
Axel Isouard 2017-02-05 09:07:10 -08:00
parent a702d36f56
commit f381807566
1 changed files with 24 additions and 7 deletions
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31
CMakeLists.txt
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@ -89,15 +89,32 @@ set(TARGET_CPU "" CACHE STRING "Target CPU, used as --target_cpu argument")
set(TARGET_CPU_LIST x86 x64 arm arm64 mipsel)
if (TARGET_CPU STREQUAL "")
if (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
include(CheckSymbolExists)
if (WIN32)
check_symbol_exists("_M_X64" "" ARCH_X64)
if (NOT ARCH_X64)
check_symbol_exists("_M_AMD64" "" ARCH_X64)
if (NOT ARCH_X64)
check_symbol_exists("_M_IX86" "" ARCH_X86)
if (NOT ARCH_X86)
check_symbol_exists("_M_ARM" "" ARCH_ARM)
check_symbol_exists("_M_ARM64" "" ARCH_ARM64)
endif (NOT ARCH_X86)
endif (NOT ARCH_X64)
endif (NOT ARCH_X64)
else (WIN32)
check_symbol_exists("__i386__" "" ARCH_X86)
check_symbol_exists("__x86_64__" "" ARCH_X64)
check_symbol_exists("__arm__" "" ARCH_ARM)
check_symbol_exists("__aarch64__" "" ARCH_ARM64)
endif (WIN32)
if (ARCH_X86)
set(TARGET_CPU "x86")
elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "^x86.64$")
set(TARGET_CPU "x64")
elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64")
elseif (ARCH_X64)
set(TARGET_CPU "x64")
else ()
set(TARGET_CPU ${CMAKE_SYSTEM_PROCESSOR})
endif (CMAKE_SYSTEM_PROCESSOR MATCHES "^i.86$")
endif (ARCH_X86)
endif (TARGET_CPU STREQUAL "")
if (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
@ -105,9 +122,9 @@ if (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
endif (NOT ${TARGET_CPU} IN_LIST TARGET_CPU_LIST)
if (UNIX)
if (TARGET_CPU STREQUAL "x86")
if (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "-m32")
endif (TARGET_CPU STREQUAL "x86")
endif (ARCH_X86)
set(LIBWEBRTC_REQUIRED_CXX_FLAGS "${LIBWEBRTC_REQUIRED_CXX_FLAGS} -std=gnu++0x")
list(APPEND LIBWEBRTC_DEFINITIONS WEBRTC_POSIX _GLIBCXX_USE_CXX11_ABI=0)
elseif (WIN32)