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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 binary.lua
--
-- imports
import("core.base.option")
import("core.theme.theme")
import("core.tool.linker")
import("core.tool.compiler")
import("core.project.depend")
import("utils.progress")
import("private.utils.batchcmds")
import("object", {alias = "object_target"})
import("private.action.build.target", {alias = "target_buildutils"})
-- do link target
function _do_link_target(target, opt)
local linkinst = linker.load(target:kind(), target:sourcekinds(), {target = target})
local linkflags = linkinst:linkflags({target = target})
-- need build this target?
local depfiles = target_buildutils.get_linkdepfiles(target)
local dryrun = option.get("dry-run")
local depvalues = {linkinst:program(), linkflags}
depend.on_changed(function ()
local filename = target:filename()
if target:namespace() then
filename = target:namespace() .. "::" .. filename
end
progress.show(opt.progress, "${color.build.target}linking.$(mode) %s", filename)
local targetfile = target:targetfile()
local objectfiles = target:objectfiles()
local verbose = option.get("verbose")
if verbose then
-- show the full link command with raw arguments, it will expand @xxx.args for msvc/link on windows
print(linkinst:linkcmd(objectfiles, targetfile, {linkflags = linkflags, rawargs = true}))
end
if not dryrun then
assert(linkinst:link(objectfiles, targetfile, {linkflags = linkflags}))
end
end, {dependfile = target:dependfile(),
lastmtime = os.mtime(target:targetfile()),
changed = target:is_rebuilt() or option.get("linkonly"),
values = depvalues, files = depfiles, dryrun = dryrun})
end
-- on link the given target
function _on_link_target(target, opt)
-- link target with rules
local done = false
for _, r in ipairs(target:orderules()) do
local on_link = r:script("link")
if on_link then
on_link(target, opt)
done = true
end
local on_linkcmd = r:script("linkcmd")
if on_linkcmd then
local batchcmds_ = batchcmds.new({target = target})
on_linkcmd(target, batchcmds_, {progress = opt.progress})
batchcmds_:runcmds({changed = target:is_rebuilt(), dryrun = option.get("dry-run")})
done = true
end
end
if done then return end
-- do link
_do_link_target(target, opt)
end
-- link target
function _link_target(target, opt)
-- do before link for target
local before_link = target:script("link_before")
if before_link then
before_link(target, opt)
end
-- do before link for rules
for _, r in ipairs(target:orderules()) do
local before_link = r:script("link_before")
if before_link then
before_link(target, opt)
end
local before_linkcmd = r:script("linkcmd_before")
if before_linkcmd then
local batchcmds_ = batchcmds.new({target = target})
before_linkcmd(target, batchcmds_, {progress = opt.progress})
batchcmds_:runcmds({changed = target:is_rebuilt(), dryrun = option.get("dry-run")})
end
end
-- on link
target:script("link", _on_link_target)(target, opt)
-- do after link for target
local after_link = target:script("link_after")
if after_link then
after_link(target, opt)
end
-- do after link for rules
for _, r in ipairs(target:orderules()) do
local after_link = r:script("link_after")
if after_link then
after_link(target, opt)
end
local after_linkcmd = r:script("linkcmd_after")
if after_linkcmd then
local batchcmds_ = batchcmds.new({target = target})
after_linkcmd(target, batchcmds_, {progress = opt.progress})
batchcmds_:runcmds({changed = target:is_rebuilt(), dryrun = option.get("dry-run")})
end
end
end
-- add batch jobs for building binary target
function main(batchjobs, rootjob, target)
-- add link job
local job_link = batchjobs:addjob(target:name() .. "/link", function (index, total, opt)
_link_target(target, {progress = opt.progress})
end, {rootjob = rootjob})
-- we only need to return and depend the link job for each target,
-- so we can compile the source files for each target in parallel
--
-- unless call set_policy("build.across_targets_in_parallel", false) to disable to build across targets in parallel.
--
local job_objects = object_target.add_batchjobs_for_object(batchjobs, job_link, target)
return target:policy("build.across_targets_in_parallel") == false and job_objects or job_link, job_objects
end
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