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Fix 32-bit ARM NEON detection 

BeagleBone's, RPI-3's, etc
pull/469/head
Jeffrey Walton 2017-08-23 19:35:45 -04:00
parent 9c9e69119f
commit b3cacd8287
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GPG Key ID: B36AB348921B1838
2 changed files with 20 additions and 4 deletions
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18
CMakeLists.txt
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@ -131,7 +131,7 @@ execute_process(COMMAND ${SHELL_CMD} "${CMAKE_CXX_COMPILER} -dumpmachine 2>&1"
# http://stackoverflow.com/q/12515462/608639
execute_process(COMMAND ${SHELL_CMD} "${CMAKE_CXX_COMPILER} -dumpmachine 2>&1"
COMMAND ${GREP_CMD} "\\<ARM\\>"
OUTPUT_VARIABLE CRYPTOPP_ARMHF
OUTPUT_VARIABLE CRYPTOPP_ARM
OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${SHELL_CMD} "${CMAKE_CXX_COMPILER} -dumpmachine 2>&1"
@ -139,6 +139,19 @@ execute_process(COMMAND ${SHELL_CMD} "${CMAKE_CXX_COMPILER} -dumpmachine 2>&1"
OUTPUT_VARIABLE CRYPTOPP_ARMHF
OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${SHELL_CMD} "${CMAKE_CXX_COMPILER} -dumpmachine 2>&1"
COMMAND ${GREP_CMD} "ARM7L"
OUTPUT_VARIABLE CRYPTOPP_ARM7L
OUTPUT_STRIP_TRAILING_WHITESPACE)
# arm7l is another 32-bit hard float machine. RPI-3 is arm7l on 64-bit hardware
if ("${CRYPTOPP_ARM}" STREQUAL "1")
set(CRYPTOPP_ARMHF "1")
endif()
if ("${CRYPTOPP_ARM7L}" STREQUAL "1")
set(CRYPTOPP_ARMHF "1")
endif()
# End JW hack
###############################################################################
@ -486,6 +499,9 @@ if (BUILD_SHARED)
add_dependencies(dynamic cryptopp-shared)
endif()
add_custom_target(distclean)
add_dependencies(distclean clean)
#============================================================================
# Third-party libraries
#============================================================================

6
GNUmakefile
View File

@ -27,8 +27,8 @@ UNAME := $(shell uname)
IS_X86 := $(shell uname -m | $(EGREP) -v "x86_64" | $(EGREP) -i -c "i.86|x86|i86")
IS_X64 := $(shell uname -m | $(EGREP) -i -c "(_64|d64)")
IS_PPC := $(shell uname -m | $(EGREP) -i -c "ppc|power")
IS_ARM32 := $(shell uname -m | $(EGREP) -v "arm64" | $(EGREP) -i -c "arm")
IS_ARM64 := $(shell uname -m | $(EGREP) -i -c "aarch64")
IS_ARM32 := $(shell uname -m | $(EGREP) -i -c '\<arm\>')
IS_ARM64 := $(shell uname -m | $(EGREP) -i -c 'aarch64')
IS_ARMV8 ?= $(shell uname -m | $(EGREP) -i -c 'aarch32|aarch64')
IS_NEON ?= $(shell uname -m | $(EGREP) -i -c 'armv7|armv8|aarch32|aarch64')
IS_SPARC := $(shell uname -m | $(EGREP) -i -c "sparc")
@ -289,7 +289,7 @@ endif
endif
ifeq ($(IS_NEON),1)
HAVE_NEON = $(shell echo | $(CXX) -x c++ $(CXXFLAGS) -march=armv7-a -mfloat-abi=$(FP_ABI) -mfpu=neon -dM -E - 2>/dev/null | $(EGREP) -i -c __ARM_NEON)
HAVE_NEON = $(shell echo | $(CXX) -x c++ $(CXXFLAGS) -march=armv7-a -mfloat-abi=$(FP_ABI) -mfpu=neon -dM -E - 2>/dev/null | $(EGREP) -i -c '\<__ARM_NEON\>')
ifeq ($(HAVE_NEON),1)
NEON_FLAG = -march=armv7-a -mfloat-abi=$(FP_ABI) -mfpu=neon
GCM_FLAG = -march=armv7-a -mfloat-abi=$(FP_ABI) -mfpu=neon