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Merge branch 'NanoAkron-armv8-march-crypto'

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This commit is contained in:
Riccardo Spagni 2016-09-18 20:24:32 +02:00
commit f00c2dc1ec
1 changed files with 22 additions and 4 deletions
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26
CMakeLists.txt
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@ -330,6 +330,7 @@ if(MSVC)
endif()
include_directories(SYSTEM src/platform/msc)
else()
include(TestCXXAcceptsFlag)
set(ARCH native CACHE STRING "CPU to build for: -march value or 'default' to not pass -march at all")
message(STATUS "Building on ${CMAKE_SYSTEM_PROCESSOR} for ${ARCH}")
if(ARCH STREQUAL "default")
@ -391,15 +392,32 @@ else()
message(STATUS "AES support enabled")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maes")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maes")
elseif(ARM) #NB ARMv8 DOES support AES, but not yet coded
message(STATUS "AES support disabled (not available on ARM)")
elseif(ARM6)
message(STATUS "AES support not available on ARMv6")
elseif(ARM7)
message(STATUS "AES support not available on ARMv7")
elseif(ARM8)
CHECK_CXX_ACCEPTS_FLAG("-march=${ARCH}+crypto" ARCH_PLUS_CRYPTO)
if(ARCH_PLUS_CRYPTO)
message(STATUS "Crypto extensions enabled for ARMv8")
set(ARCH_FLAG "-march=${ARCH}+crypto")
else()
message(STATUS "Crypto extensions unavailable on your ARMv8 device")
endif()
else()
message(STATUS "AES support disabled")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_GNU_SOURCE ${MINGW_FLAG} ${STATIC_ASSERT_FLAG} ${WARNINGS} ${C_WARNINGS} ${ARCH_FLAG} ${COVERAGE_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -D_GNU_SOURCE ${MINGW_FLAG} ${WARNINGS} ${CXX_WARNINGS} ${ARCH_FLAG} ${COVERAGE_FLAGS}")
# With GCC 6.1.1 the compiled binary malfunctions due to aliasing. Until that
# is fixed in the code (Issue #847), force compiler to be conservative.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-strict-aliasing")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
if(ARM)
message(STATUS "Setting FPU Flags for ARM Processors")
include(TestCXXAcceptsFlag)
#NB NEON hardware does not fully implement the IEEE 754 standard for floating-point arithmetic
#Need custom assembly code to take full advantage of NEON SIMD
@ -407,7 +425,7 @@ else()
#Cortex-A5/9 -mfpu=neon-fp16
#Cortex-A7/15 -mfpu=neon-vfpv4
#Cortex-A8 -mfpu=neon
#ARMv8 -FP and SIMD on by default for all ARM8v-a series, NO -mfpu setting needed
#ARMv8 -FP and SIMD on by default for all ARM8v-A series, NO -mfpu setting needed
#For custom -mtune, processor IDs for ARMv8-A series:
#0xd04 - Cortex-A35