Merge "Add LinuxBionic toolchain to Rust"

        "toolchain.go",

        "allowed_list.go",

        "x86_darwin_host.go",

        "x86_linux_bionic_host.go",

        "x86_linux_host.go",

        "x86_device.go",

        "x86_64_device.go",

// Copyright 2020 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"

)

var (

	LinuxBionicRustFlags     = []string{}

	LinuxBionicRustLinkFlags = []string{

		"-B${cc_config.ClangBin}",

		"-fuse-ld=lld",

		"-Wl,--undefined-version",

		"-nostdlib",

	}

)

func init() {

	registerToolchainFactory(android.LinuxBionic, android.X86_64, linuxBionicX8664ToolchainFactory)

	pctx.StaticVariable("LinuxBionicToolchainRustFlags", strings.Join(LinuxBionicRustFlags, " "))

	pctx.StaticVariable("LinuxBionicToolchainLinkFlags", strings.Join(LinuxBionicRustLinkFlags, " "))

}

type toolchainLinuxBionicX8664 struct {

	toolchain64Bit

}

func (toolchainLinuxBionicX8664) Supported() bool {

	return true

}

func (toolchainLinuxBionicX8664) Bionic() bool {

	return true

}

func (t *toolchainLinuxBionicX8664) Name() string {

	return "x86_64"

}

func (t *toolchainLinuxBionicX8664) RustTriple() string {

	return "x86_64-linux-android"

}

func (t *toolchainLinuxBionicX8664) ToolchainLinkFlags() string {

	// Prepend the lld flags from cc_config so we stay in sync with cc

	return "${cc_config.LinuxBionicLldflags} ${config.LinuxBionicToolchainLinkFlags}"

}

func (t *toolchainLinuxBionicX8664) ToolchainRustFlags() string {

	return "${config.LinuxBionicToolchainRustFlags}"

}

func linuxBionicX8664ToolchainFactory(arch android.Arch) Toolchain {

	return toolchainLinuxBionicX8664Singleton

}

var toolchainLinuxBionicX8664Singleton Toolchain = &toolchainLinuxBionicX8664{}