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--!A cross-platform build utility based on Lua
--
-- Licensed 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-present, Xmake Open Source Community.
--
-- @author wuzhenqing
-- @file has_flags.lua
--
-- Note: This module is derived from gcc/has_flags.lua with modifications
-- for Ascend C specific source kinds (.asc, .aicpu) and --npu-arch handling.
-- Inherit cannot be used here because xmake's tool module inheritance does
-- not support overriding individual local functions.
-- imports
import("core.cache.detectcache")
import("core.language.language")
-- is linker?
function _islinker(flags, opt)
-- the flags is "-Wl,<arg>" or "-Xlinker <arg>"?
local flags_str = table.concat(flags, " ")
if flags_str:startswith("-Wl,") or
flags_str:startswith("-Xlinker ") then
return true
end
-- the tool kind is ld or sh?
local toolkind = opt.toolkind or ""
return toolkind == "ld" or
toolkind == "sh" or
toolkind == "ascld" or
toolkind == "ascsh" or
toolkind:endswith("-ld") or
toolkind:endswith("-sh") or
toolkind:endswith("ld") or
toolkind:endswith("sh")
end
-- try running
function _try_running(program, argv, opt)
local errors = nil
return try {
function ()
os.runv(program, argv, opt)
return true
end,
catch {
function (errs)
errors = (errs or ""):trim()
end
}
}, errors
end
-- get source kind
function _get_sourcekind(opt, islinker)
if not islinker then
local toolkind = opt.toolkind or "asc"
if language.sourcekinds()[toolkind] then
return toolkind
end
end
return "asc"
end
function _map_sourcekind(sourcekind)
local map = {cxx = "c++"}
return map[sourcekind] or sourcekind
end
-- get extension
function _get_extension(sourcekind)
return table.wrap(language.sourcekinds()[sourcekind])[1] or ".asc"
end
-- has npu arch?
function _has_npu_arch(flags)
for _, flag in ipairs(flags) do
if flag:startswith("--npu-arch=") then
return true
end
end
end
-- attempt to check it from the argument list
function _check_from_arglist(flags, opt, islinker)
local flag = flags[1]
if not flag then
return false
end
-- check for the builtin flag=value
if flag:startswith("--npu-arch=") then
return true
end
-- check from the `--help` menu, only for compile flags
if islinker or #flags > 1 then
return
end
local key = "core.tools.bisheng.has_flags"
local flagskey = opt.program .. "_" .. (opt.programver or "")
local allflags = detectcache:get2(key, flagskey)
if not allflags then
allflags = {}
local arglist = try {function () return os.iorunv(opt.program, {"--help"}, {envs = opt.envs}) end}
if arglist then
for arg in arglist:gmatch("%s+(%-[%-%a%d]+)%s+") do
allflags[arg] = true
end
end
detectcache:set2(key, flagskey, allflags)
end
return allflags[flag]
end
-- try running to check flags
function _check_try_running(flags, opt, islinker)
local snippet = opt.snippet or
"int main(int argc, char** argv)\n{return 0;}\n"
local sourcekind = _get_sourcekind(opt, islinker)
local sourcefile = os.tmpfile("bisheng_has_flags") ..
_get_extension(sourcekind)
if not os.isfile(sourcefile) then
io.writefile(sourcefile, snippet)
end
local args = table.join("-o", os.tmpfile(), sourcefile)
if not islinker then
table.insert(args, 1, "-c")
end
if sourcekind == "asc" and not _has_npu_arch(flags) then
sourcekind = "c++"
end
sourcekind = _map_sourcekind(sourcekind)
table.insert(args, 1, sourcekind)
table.insert(args, 1, "-x")
return _try_running(opt.program, table.join(flags, args), opt)
end
function _has_flags(flags, opt)
opt = opt or {}
local islinker = _islinker(flags, opt)
if not opt.tryrun and _check_from_arglist(flags, opt, islinker) then
return true
end
return _check_try_running(flags, opt, islinker)
end
function main(...)
return _has_flags(...)
end
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