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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 ruki
-- @file has_flags.lua
--
-- imports
import("core.cache.detectcache")
-- attempt to check it from the argument list
function _check_from_arglist(flags, opt)
-- only one flag?
if #flags > 1 then
return
end
-- make cache key
local key = "core.tools.ml.has_flags"
-- make allflags key
local flagskey = opt.program .. "_" .. (opt.programver or "")
-- get all allflags from argument list
local allflags = detectcache:get2(key, flagskey)
if not allflags then
-- get argument list
allflags = {}
local arglist = os.iorunv(opt.program, {"-?"}, {envs = opt.envs})
if arglist then
for arg in arglist:gmatch("(/[%-%a%d]+)%s+") do
allflags[arg:gsub("/", "-")] = true
end
end
-- save cache
detectcache:set2(key, flagskey, allflags)
end
return allflags[flags[1]:gsub("/", "-")]
end
-- try running to check flags
function _check_try_running(flags, opt)
-- make an stub source file
local sourcefile = path.join(os.tmpdir(), "detect", "ml_has_flags.asm")
if not os.isfile(sourcefile) then
io.writefile(sourcefile, [[
ifndef X64
.686p
.model flat, C
endif
.code
end]])
end
-- check it
local errors = nil
return try { function ()
if opt.program:find("ml64", 1, true) then
table.insert(flags, "-DX64")
end
local _, errs = os.iorunv(opt.program, table.join("-c", "-nologo", flags, "-Fo" .. os.nuldev(), sourcefile), {envs = opt.envs})
if errs and #errs:trim() > 0 then
return false, errs
end
return true
end,
catch { function (errs) errors = errs end }
}, errors
end
-- has_flags(flags)?
--
-- @param opt the argument options, e.g. {toolname = "", program = "", programver = "", toolkind = "[cc|cxx|ld|ar|sh|gc|rc|dc|mm|mxx]"}
--
-- @return true or false
--
function main(flags, opt)
-- attempt to check it from the argument list
if _check_from_arglist(flags, opt) then
return true
end
-- try running to check it
return _check_try_running(flags, opt)
end
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