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// Copyright 2019 The Android Open Source Project
//
// 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.
package config
import (
"strings"
"android/soong/android"
_ "android/soong/cc/config"
)
var pctx = android.NewPackageContext("android/soong/rust/config")
var (
RustDefaultVersion = "1.46.0"
RustDefaultBase = "prebuilts/rust/"
DefaultEdition = "2018"
Stdlibs = []string{
"libstd",
"libtest",
}
GlobalRustFlags = []string{
"--remap-path-prefix $$(pwd)=",
"-C codegen-units=1",
"-C opt-level=3",
"-C relocation-model=pic",
}
deviceGlobalRustFlags = []string{}
deviceGlobalLinkFlags = []string{
// Prepend the lld flags from cc_config so we stay in sync with cc
"${cc_config.DeviceGlobalLldflags}",
// Override cc's --no-undefined-version to allow rustc's generated alloc functions
"-Wl,--undefined-version",
"-Bdynamic",
"-nostdlib",
"-Wl,--pack-dyn-relocs=android+relr",
"-Wl,--use-android-relr-tags",
"-Wl,--no-undefined",
"-B${cc_config.ClangBin}",
}
)
func init() {
pctx.SourcePathVariable("RustDefaultBase", RustDefaultBase)
pctx.VariableConfigMethod("HostPrebuiltTag", android.Config.PrebuiltOS)
pctx.VariableFunc("RustBase", func(ctx android.PackageVarContext) string {
if override := ctx.Config().Getenv("RUST_PREBUILTS_BASE"); override != "" {
return override
}
return "${RustDefaultBase}"
})
pctx.VariableFunc("RustVersion", func(ctx android.PackageVarContext) string {
if override := ctx.Config().Getenv("RUST_PREBUILTS_VERSION"); override != "" {
return override
}
return RustDefaultVersion
})
pctx.StaticVariable("RustPath", "${RustBase}/${HostPrebuiltTag}/${RustVersion}")
pctx.StaticVariable("RustBin", "${RustPath}/bin")
pctx.ImportAs("cc_config", "android/soong/cc/config")
pctx.StaticVariable("RustLinker", "${cc_config.ClangBin}/clang++")
pctx.StaticVariable("RustLinkerArgs", "")
pctx.StaticVariable("DeviceGlobalLinkFlags", strings.Join(deviceGlobalLinkFlags, " "))
}
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