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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 link.lua
--
-- imports
import("core.project.config")
import("private.tools.vstool")
-- get implib file
function _get_implibfile(self, opt)
local target = opt and opt.target
if target and target:type() == "target" then
return target:artifactfile("implib")
end
end
-- init it
function init(self)
-- init ldflags
self:set("ldflags", "-nologo", "-dynamicbase", "-nxcompat")
-- init arflags
self:set("arflags", "-nologo")
-- init shflags
self:set("shflags", "-nologo")
-- init flags map
self:set("mapflags",
{
-- strip
["-s"] = ""
, ["-S"] = ""
-- others
, ["-ftrapv"] = ""
, ["-fsanitize=address"] = ""
})
end
-- get the property
function get(self, name)
local values = self._INFO[name]
if name == "ldflags" or name == "arflags" or name == "shflags" then
-- switch architecture, @note does cache it in init() for generating vs201x project
values = table.join(values, "-machine:" .. (self:arch() or "x86"))
end
return values
end
-- make the strip flag
function nf_strip(self, level, opt)
-- link.exe/arm64 does not support /opt:ref, /opt:icf
local target = opt.target
if target and target:is_arch("arm64") then
return
end
-- @note we explicitly strip some useless code, because `/debug` may keep them
-- @see https://github.com/xmake-io/xmake/issues/907
if level == "all" then
-- we enable /ltcg for optimize/smallest:/Gl
local flags = {"/opt:ref", "/opt:icf"}
if target and target:get("optimize") == "smallest" then
table.insert(flags, "/ltcg")
end
return flags
elseif level == "debug" then
return {"/opt:ref", "/opt:icf"}
end
end
-- make the symbol flag
function nf_symbol(self, level, opt)
-- debug? generate *.pdb file
local flags = nil
local target = opt.target
if target then
if target:type() == "target" then
if level == "debug" and (target:is_binary() or target:is_shared()) then
flags = {"-debug", "-pdb:" .. target:symbolfile()}
end
else -- for option
if level == "debug" then
flags = "-debug"
end
end
end
return flags
end
-- make the link flag
function nf_link(self, lib)
if not lib:endswith(".lib") and not lib:endswith(".obj") then
lib = lib .. ".lib"
end
return lib
end
-- make the syslink flag
function nf_syslink(self, lib)
return nf_link(self, lib)
end
-- make the runtime flag
function nf_runtime(self, runtime)
if runtime and runtime:startswith("MT") then
return "-nodefaultlib:msvcrt.lib"
end
end
-- make the linkdir flag
function nf_linkdir(self, dir)
return {"-libpath:" .. path.translate(dir)}
end
-- make the link arguments list
function linkargv(self, objectfiles, targetkind, targetfile, flags, opt)
opt = opt or {}
local argv = table.join(flags, "-out:" .. targetfile, objectfiles)
if not opt.rawargs then
argv = winos.cmdargv(argv)
end
-- @note we cannot put -lib/-dll to @args.txt
local implib = false
if targetkind == "static" then
table.insert(argv, 1, "-lib")
elseif targetkind == "shared" then
table.insert(argv, 1, "-dll")
implib = true
elseif targetkind == "binary" then
implib = true
end
if implib then
local implibfile = _get_implibfile(self, opt)
if implibfile then
table.insert(argv, "/implib:" .. implibfile)
end
end
return self:program(), argv
end
-- link the target file
function link(self, objectfiles, targetkind, targetfile, flags, opt)
opt = opt or {}
-- ensure the target file directory exists
os.mkdir(path.directory(targetfile))
local implibfile = _get_implibfile(self, opt)
if implibfile then
os.mkdir(path.directory(implibfile))
end
try
{
function ()
local toolchain = self:toolchain()
local program, argv = linkargv(self, objectfiles, targetkind, targetfile, flags, opt)
if toolchain and toolchain:name() == "masm32" then
os.iorunv(program, argv, {envs = self:runenvs()})
else
-- use vstool to link and enable vs_unicode_output @see https://github.com/xmake-io/xmake/issues/528
vstool.runv(program, argv, {envs = self:runenvs()})
end
end,
catch
{
function (errors)
-- use link/stdout as errors first from vstool.iorunv()
if type(errors) == "table" then
local errs = errors.stdout or ""
if #errs:trim() == 0 then
errs = errors.stderr or ""
end
errors = errs
end
os.raise(tostring(errors))
end
}
}
end
|
