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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, TBOOX Open Source Group.
--
-- @author ruki
-- @file xmake.lua
--
-- generate bridge.rs.cc/h to call rust library in c++ code
-- @see https://cxx.rs/build/other.html
rule("rust.cxxbridge")
set_extensions(".rsx")
on_load(function (target)
if not target:get("languages") then
target:set("languages", "c++11")
end
end)
before_buildcmd_file("build.cxxbridge")
rule("rust.build")
set_sourcekinds("rc")
on_load(function (target)
-- set cratetype
local cratetype = target:values("rust.cratetype")
if cratetype == "staticlib" then
assert(target:is_static(), "target(%s) must be static kind for cratetype(staticlib)!", target:name())
target:add("arflags", "--crate-type=staticlib")
target:data_set("inherit.links.exportlinks", false)
elseif cratetype == "cdylib" then
assert(target:is_shared(), "target(%s) must be shared kind for cratetype(cdylib)!", target:name())
target:add("shflags", "--crate-type=cdylib", {force = true})
target:add("shflags", "-C prefer-dynamic", {force = true})
elseif target:is_static() then
target:set("extension", ".rlib")
target:add("arflags", "--crate-type=lib", {force = true})
target:data_set("inherit.links.deplink", false)
elseif target:is_shared() then
target:add("shflags", "--crate-type=dylib", {force = true})
-- fix cannot satisfy dependencies so `std` only shows up once
-- https://github.com/rust-lang/rust/issues/19680
--
-- but it will link dynamic @rpath/libstd-xxx.dylib,
-- so we can no longer modify and set other rpath paths
target:add("shflags", "-C prefer-dynamic", {force = true})
elseif target:is_binary() then
target:add("ldflags", "--crate-type=bin", {force = true})
end
-- set edition
local edition = target:values("rust.edition") or "2018"
target:add("rcflags", "--edition", edition, {force = true})
-- set abort panic for no_std
-- https://github.com/xmake-io/xmake/issues/4929
local no_std = false
local sourcebatch = target:sourcebatches()["rust.build"]
if sourcebatch then
for _, sourcefile in ipairs(sourcebatch.sourcefiles) do
local content = io.readfile(sourcefile)
if content and content:find("#![no_std]", 1, true) then
no_std = true
break
end
end
end
if no_std then
target:add("rcflags", "-C panic=abort", {force = true})
end
end)
on_build("build.target")
rule("rust")
add_deps("rust.build")
add_deps("utils.inherit.links")
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