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--!A cross-platform build utility based on Lua
--
-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements. See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership. The ASF licenses this file
-- to you under the Apache License, Version 2.0 (the
-- "License"); you may not use this file except in compliance
-- with the License. You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015 - 2018, TBOOX Open Source Group.
--
-- @author ruki
-- @file find_cuda.lua
--
-- imports
import("lib.detect.find_file")
-- find cuda sdk directory
function _find_cudadir()
-- init the search directories
local pathes = {}
if os.host() == "macosx" then
table.insert(pathes, "/Developer/NVIDIA/CUDA*/bin")
elseif os.host() == "windows" then
table.insert(pathes, "$(env CUDA_PATH)/bin")
else
table.insert(pathes, "/usr/local/cuda*/bin")
end
-- attempt to find nvcc
local nvcc = find_file(os.host() == "windows" and "nvcc.exe" or "nvcc", pathes)
if nvcc then
return path.directory(path.directory(nvcc))
end
end
-- find cuda sdk toolchains
--
-- @param cudadir the cuda directory
-- @param opt the argument options
--
-- @return the cuda sdk toolchains. .e.g {cudadir = ..., bindir = .., linkdirs = ..., includedirs = ..., .. }
--
-- @code
--
-- local toolchains = find_cuda("/Developer/NVIDIA/CUDA-9.1")
--
-- @endcode
--
function main(cudadir, opt)
-- init arguments
opt = opt or {}
-- find cuda directory
if not cudadir or not os.isdir(cudadir) then
cudadir = _find_cudadir()
end
-- not found?
if not cudadir or not os.isdir(cudadir) then
return nil
end
-- get the bin directory
local bindir = path.join(cudadir, "bin")
if not os.isexec(path.join(bindir, "nvcc")) then
return nil
end
-- get linkdirs
local linkdirs = {path.join(cudadir, "lib")}
-- get includedirs
local includedirs = {path.join(cudadir, "include")}
-- get toolchains
return {cudadir = cudadir, bindir = bindir, linkdirs = linkdirs, includedirs = includedirs}
end
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