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Add ARMv8 Handling to CMakeLists.txt - version 2
Adds 64-bit ARMv8 handling to CMakeLists.txt and implements GCC flags for two errata on the Cortex-A53 present on every chip in revision 0: https://developer.arm.com/docs/epm048406/latest/arm-processor-cortex-a53-mpcore-product-revision-r0-software-developers-errata-notice 835769 affects 64-bit multiply accumulate 843419 affects internal page addressing Rewritten to build on @radfish's changes Updated to address @radfish's points
This commit is contained in:
NanoAkron
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commit
cf10e05cc6
@ -76,6 +76,11 @@ if (ARM_TEST STREQUAL "arm")
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endif()
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endif()
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if (ARCH_ID STREQUAL "aarch64")
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set(ARM 1)
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set(ARM8 1)
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endif()
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if(WIN32 OR ARM)
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set(OPT_FLAGS_RELEASE "-O2")
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else()
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@ -367,23 +372,89 @@ else()
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message(STATUS "AES support enabled")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maes")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maes")
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elseif(ARM)
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elseif(ARM) #NB ARMv8 DOES support AES, but not yet coded
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message(STATUS "AES support disabled (not available on ARM)")
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else()
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message(STATUS "AES support disabled")
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endif()
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if(ARM6)
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message(STATUS "Setting ARM6 C and C++ flags")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfp -mfloat-abi=hard")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfp -mfloat-abi=hard")
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endif()
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if(ARM)
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message(STATUS "Setting FPU Flags for ARM Processors")
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include(TestCXXAcceptsFlag)
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if(ARM7)
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message(STATUS "Setting ARM7 C and C++ flags")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfloat-abi=hard")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfloat-abi=hard")
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endif()
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#NB NEON hardware does not fully implement the IEEE 754 standard for floating-point arithmetic
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#Need custom assembly code to take full advantage of NEON SIMD
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#Cortex-A5/9 -mfpu=neon-fp16
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#Cortex-A7/15 -mfpu=neon-vfpv4
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#Cortex-A8 -mfpu=neon
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#ARMv8 -FP and SIMD on by default for all ARM8v-a series, NO -mfpu setting needed
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#For custom -mtune, processor IDs for ARMv8-A series:
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#0xd04 - Cortex-A35
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#0xd07 - Cortex-A57
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#0xd08 - Cortex-A72
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#0xd03 - Cortex-A73
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if(NOT ARM8)
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CHECK_CXX_ACCEPTS_FLAG(-mfpu=vfp3-d16 CXX_ACCEPTS_VFP3_D16)
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CHECK_CXX_ACCEPTS_FLAG(-mfpu=vfp4 CXX_ACCEPTS_VFP4)
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CHECK_CXX_ACCEPTS_FLAG(-mfloat-abi=hard CXX_ACCEPTS_MFLOAT_HARD)
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CHECK_CXX_ACCEPTS_FLAG(-mfloat-abi=softfp CXX_ACCEPTS_MFLOAT_SOFTFP)
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endif()
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if(ARM8)
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CHECK_CXX_ACCEPTS_FLAG(-mfix-cortex-a53-835769 CXX_ACCEPTS_MFIX_CORTEX_A53_835769)
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CHECK_CXX_ACCEPTS_FLAG(-mfix-cortex-a53-843419 CXX_ACCEPTS_MFIX_CORTEX_A53_843419)
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endif()
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if(ARM6)
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message(STATUS "Selecting VFP for ARMv6")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfp")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfp")
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endif(ARM6)
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if(ARM7)
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if(CXX_ACCEPTS_VFP3_D16 AND NOT CXX_ACCEPTS_VFP4)
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message(STATUS "Selecting VFP3 for ARMv7")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfp3-d16")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfp3-d16")
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endif()
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if(CXX_ACCEPTS_VFP4)
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message(STATUS "Selecting VFP4 for ARMv7")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfp4")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfp4")
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endif()
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if(CXX_ACCEPTS_MFLOAT_HARD)
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message(STATUS "Setting Hardware ABI for Floating Point")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfloat-abi=hard")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfloat-abi=hard")
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endif()
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if(CXX_ACCEPTS_MFLOAT_SOFTFP AND NOT CXX_ACCEPTS_MFLOAT_HARD)
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message(STATUS "Setting Software ABI for Floating Point")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfloat-abi=softfp")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfloat-abi=softfp")
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endif()
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endif(ARM7)
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if(ARM8)
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if(CXX_ACCEPTS_MFIX_CORTEX_A53_835769)
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message(STATUS "Enabling Cortex-A53 workaround 835769")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfix-cortex-a53-835769")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfix-cortex-a53-835769")
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endif()
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if(CXX_ACCEPTS_MFIX_CORTEX_A53_843419)
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message(STATUS "Enabling Cortex-A53 workaround 843419")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfix-cortex-a53-843419")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfix-cortex-a53-843419")
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endif()
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endif(ARM8)
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endif(ARM)
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if(APPLE)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DGTEST_HAS_TR1_TUPLE=0")
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18
Makefile
18
Makefile
@ -1,21 +1,21 @@
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# Copyright (c) 2014-2016, The Monero Project
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#
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#
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# All rights reserved.
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#
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#
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# Redistribution and use in source and binary forms, with or without modification, are
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# permitted provided that the following conditions are met:
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#
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of
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# conditions and the following disclaimer.
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#
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list
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# of conditions and the following disclaimer in the documentation and/or other
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# materials provided with the distribution.
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#
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors may be
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# used to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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@ -65,7 +65,11 @@ release-static-arm6:
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release-static-arm7:
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mkdir -p build/release
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cd build/release && cmake -D BUILD_TESTS=OFF -D ARCH="armv7-a" -D STATIC=ON -D BUILD_64=OFF -D CMAKE_BUILD_TYPE=release ../.. && $(MAKE)
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release-static-armv8:
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mkdir -p build/release
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cd build/release && cmake -D BUILD_TESTS=OFF -D ARCH="armv8-a" -D STATIC=ON -D BUILD_64=ON -D CMAKE_BUILD_TYPE=release ../.. && $(MAKE)
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release-static: release-static-64
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release-static-64:
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@ -197,7 +197,8 @@ By default, in either dynamically or statically linked builds, binaries target t
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* ```make release-static-64``` builds binaries on Linux on x86_64 portable across POSIX systems on x86_64 processors
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* ```make release-static-32``` builds binaries on Linux on x86_64 or i686 portable across POSIX systems on i686 processors
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* ```make release-static-arm7``` builds binaries on Linux on armv7 portable across POSIX systesm on armv7 processors
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* ```make release-static-arm8``` builds binaries on Linux on armv8 portable across POSIX systems on armv8 processors
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* ```make release-static-arm7``` builds binaries on Linux on armv7 portable across POSIX systems on armv7 processors
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* ```make release-static-arm6``` builds binaries on Linux on armv7 or armv6 portable across POSIX systems on armv6 processors, such as the Raspberry Pi
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* ```make release-static-win64``` builds binaries on 64-bit Windows portable across 64-bit Windows systems
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* ```make release-static-win32``` builds binaries on 64-bit or 32-bit Windows portable across 32-bit Windows systems
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