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https://github.com/luxfi/node.git
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zeekayandHanzo Dev
b00f4bfea2
chains/cpp/core and quantumvm asked for LUX_GPU_DIR and stopped with a fatal error when nothing set it, so the public P, X and Q builds could not configure at all for anyone outside this machine. The seam is an ABI of four symbols over a complete CPU backend, not a kernel, so it belongs beside the chains defined over it; the kernels stay private in lux-gpu/gpu and are still only ever dlopen'd. The D and F ports move with it, to lux-cpp/chains and lux-rs/chains, both public. luxfi/compute held nothing its licence did not already cover, being the same BSD-3-Clause as this repository's. Co-authored-by: Hanzo Dev <[email protected]>
95 lines
3.7 KiB
CMake
95 lines
3.7 KiB
CMake
# Copyright (C) 2019-2026, Lux Industries Inc. All rights reserved.
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# SPDX-License-Identifier: BSD-3-Clause-Eco
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#
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# lux_gpu — the one place a C++ Lux chain asks for a primitive.
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#
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# This target compiles TWO things and no more:
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#
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# - the seam itself: the CPU backend, the RFC 6962 fold, and a dlopen of an
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# installed kernel library. No kernel source is here, and none ever will be.
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# - the reused lux-private/crypto bodies the CPU backend delegates to. They were
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# compiled twice before this target existed, once into xvm and once into
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# platformvm; a primitive with two builds is a primitive with two places to
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# drift.
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#
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# Reused, NOT vendored. -DLUXCPP_CRYPTO_DIR overrides where the checkout sits.
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cmake_minimum_required(VERSION 3.20)
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# Usable two ways with one file: `add_subdirectory` from a chain, or configured
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# on its own to build and run the seam's test.
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if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
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project(lux_gpu LANGUAGES C CXX)
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set(CMAKE_CXX_STANDARD 23)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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enable_testing()
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endif()
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if(NOT TARGET lux_gpu)
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# find_checkout(VAR MARKER candidate...) — first candidate holding MARKER wins.
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# The marker is a FILE, not a directory name: names are ambiguous in a tree
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# that holds one implementation of a thing per language.
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if(NOT COMMAND lux_gpu_find_checkout)
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function(lux_gpu_find_checkout out marker)
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foreach(_root ${ARGN})
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get_filename_component(_abs "${_root}" ABSOLUTE)
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if(EXISTS "${_abs}/${marker}")
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set(${out} "${_abs}" PARENT_SCOPE)
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return()
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endif()
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endforeach()
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set(${out} "${out}-NOTFOUND" PARENT_SCOPE)
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endfunction()
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endif()
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lux_gpu_find_checkout(_lux_gpu_crypto "include/lux/crypto/secp256k1.h"
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"${LUXCPP_CRYPTO_DIR}"
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"$ENV{HOME}/work/lux-private/crypto"
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"$ENV{HOME}/work/luxcpp/crypto"
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"${CMAKE_CURRENT_LIST_DIR}/../../../../lux-private/crypto")
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if(NOT _lux_gpu_crypto)
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message(FATAL_ERROR
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"lux-private/crypto not found (looked for include/lux/crypto/secp256k1.h). "
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"Pass -DLUXCPP_CRYPTO_DIR=/path/to/lux-private/crypto.")
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endif()
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message(STATUS "lux_gpu: CPU backend reuses crypto at ${_lux_gpu_crypto}")
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add_library(lux_gpu STATIC
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${CMAKE_CURRENT_LIST_DIR}/src/gpu.cpp
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${CMAKE_CURRENT_LIST_DIR}/src/plugin.cpp
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${_lux_gpu_crypto}/sha256/cpp/sha256.cpp
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${_lux_gpu_crypto}/ripemd160/cpp/ripemd160.cpp
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${_lux_gpu_crypto}/keccak/cpp/keccak.cpp
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${_lux_gpu_crypto}/secp256k1/cpp/ecrecover.cpp
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${_lux_gpu_crypto}/secp256k1/cpp/batch_inv.cpp
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${_lux_gpu_crypto}/secp256k1/cpp/ecdsa.cpp
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)
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target_include_directories(lux_gpu PUBLIC
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${CMAKE_CURRENT_LIST_DIR}/include
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${_lux_gpu_crypto}/include
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${_lux_gpu_crypto}/sha256/cpp
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${_lux_gpu_crypto}/ripemd160/cpp
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${_lux_gpu_crypto}/secp256k1/cpp
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)
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target_include_directories(lux_gpu PRIVATE ${CMAKE_CURRENT_LIST_DIR}/src)
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target_compile_features(lux_gpu PUBLIC cxx_std_23)
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target_compile_options(lux_gpu PRIVATE -Wall -Wextra)
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set_property(TARGET lux_gpu PROPERTY POSITION_INDEPENDENT_CODE ON)
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# dlopen. On glibc 2.34+ it is in libc and ${CMAKE_DL_LIBS} is empty, which is
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# why this is a variable and not a literal -ldl.
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target_link_libraries(lux_gpu PUBLIC ${CMAKE_DL_LIBS})
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# The seam's own test. Built whenever the seam is: a differential that is only
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# built when someone remembers to build it is a differential nobody runs.
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add_executable(lux_gpu_test ${CMAKE_CURRENT_LIST_DIR}/test/gpu_test.cpp)
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target_link_libraries(lux_gpu_test PRIVATE lux_gpu)
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target_compile_options(lux_gpu_test PRIVATE -Wall -Wextra)
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endif()
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