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// Copyright 2016 Google Inc. All rights reserved.
//
// 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 (
linuxCflags = []string{
"-fdiagnostics-color",
"-Wa,--noexecstack",
"-fPIC",
"-U_FORTIFY_SOURCE",
"-D_FORTIFY_SOURCE=2",
"-fstack-protector",
// Workaround differences in inttypes.h between host and target.
//See bug 12708004.
"-D__STDC_FORMAT_MACROS",
"-D__STDC_CONSTANT_MACROS",
}
linuxLdflags = []string{
"-Wl,-z,noexecstack",
"-Wl,-z,relro",
"-Wl,-z,now",
"-Wl,--no-undefined-version",
}
// Extended cflags
linuxX86Cflags = []string{
"-msse3",
"-mfpmath=sse",
"-m32",
"-march=prescott",
"-D_FILE_OFFSET_BITS=64",
"-D_LARGEFILE_SOURCE=1",
}
linuxX8664Cflags = []string{
"-m64",
}
linuxX86Ldflags = []string{
"-m32",
}
linuxX8664Ldflags = []string{
"-m64",
}
linuxClangCflags = append(ClangFilterUnknownCflags(linuxCflags), []string{
"--gcc-toolchain=${LinuxGccRoot}",
"--sysroot ${LinuxGccRoot}/sysroot",
"-fstack-protector-strong",
}...)
linuxClangLdflags = append(ClangFilterUnknownCflags(linuxLdflags), []string{
"--gcc-toolchain=${LinuxGccRoot}",
"--sysroot ${LinuxGccRoot}/sysroot",
}...)
linuxClangLldflags = ClangFilterUnknownLldflags(linuxClangLdflags)
linuxX86ClangLdflags = append(ClangFilterUnknownCflags(linuxX86Ldflags), []string{
"-B${LinuxGccRoot}/lib/gcc/${LinuxGccTriple}/${LinuxGccVersion}/32",
"-L${LinuxGccRoot}/lib/gcc/${LinuxGccTriple}/${LinuxGccVersion}/32",
"-L${LinuxGccRoot}/${LinuxGccTriple}/lib32",
}...)
linuxX86ClangLldflags = ClangFilterUnknownLldflags(linuxX86ClangLdflags)
linuxX8664ClangLdflags = append(ClangFilterUnknownCflags(linuxX8664Ldflags), []string{
"-B${LinuxGccRoot}/lib/gcc/${LinuxGccTriple}/${LinuxGccVersion}",
"-L${LinuxGccRoot}/lib/gcc/${LinuxGccTriple}/${LinuxGccVersion}",
"-L${LinuxGccRoot}/${LinuxGccTriple}/lib64",
}...)
linuxX8664ClangLldflags = ClangFilterUnknownLldflags(linuxX8664ClangLdflags)
linuxAvailableLibraries = addPrefix([]string{
"c",
"dl",
"gcc",
"gcc_s",
"m",
"ncurses",
"pthread",
"resolv",
"rt",
"util",
}, "-l")
)
const (
linuxGccVersion = "4.8.3"
linuxGlibcVersion = "2.17"
)
func init() {
pctx.StaticVariable("LinuxGccVersion", linuxGccVersion)
pctx.StaticVariable("LinuxGlibcVersion", linuxGlibcVersion)
// Most places use the full GCC version. A few only use up to the first two numbers.
if p := strings.Split(linuxGccVersion, "."); len(p) > 2 {
pctx.StaticVariable("ShortLinuxGccVersion", strings.Join(p[:2], "."))
} else {
pctx.StaticVariable("ShortLinuxGccVersion", linuxGccVersion)
}
pctx.SourcePathVariable("LinuxGccRoot",
"prebuilts/gcc/${HostPrebuiltTag}/host/x86_64-linux-glibc${LinuxGlibcVersion}-${ShortLinuxGccVersion}")
pctx.StaticVariable("LinuxGccTriple", "x86_64-linux")
pctx.StaticVariable("LinuxClangCflags", strings.Join(linuxClangCflags, " "))
pctx.StaticVariable("LinuxClangLdflags", strings.Join(linuxClangLdflags, " "))
pctx.StaticVariable("LinuxClangLldflags", strings.Join(linuxClangLldflags, " "))
pctx.StaticVariable("LinuxX86ClangCflags",
strings.Join(ClangFilterUnknownCflags(linuxX86Cflags), " "))
pctx.StaticVariable("LinuxX8664ClangCflags",
strings.Join(ClangFilterUnknownCflags(linuxX8664Cflags), " "))
pctx.StaticVariable("LinuxX86ClangLdflags", strings.Join(linuxX86ClangLdflags, " "))
pctx.StaticVariable("LinuxX86ClangLldflags", strings.Join(linuxX86ClangLldflags, " "))
pctx.StaticVariable("LinuxX8664ClangLdflags", strings.Join(linuxX8664ClangLdflags, " "))
pctx.StaticVariable("LinuxX8664ClangLldflags", strings.Join(linuxX8664ClangLldflags, " "))
// Yasm flags
pctx.StaticVariable("LinuxX86YasmFlags", "-f elf32 -m x86")
pctx.StaticVariable("LinuxX8664YasmFlags", "-f elf64 -m amd64")
}
type toolchainLinux struct {
cFlags, ldFlags string
}
type toolchainLinuxX86 struct {
toolchain32Bit
toolchainLinux
}
type toolchainLinuxX8664 struct {
toolchain64Bit
toolchainLinux
}
func (t *toolchainLinuxX86) Name() string {
return "x86"
}
func (t *toolchainLinuxX8664) Name() string {
return "x86_64"
}
func (t *toolchainLinux) GccRoot() string {
return "${config.LinuxGccRoot}"
}
func (t *toolchainLinux) GccTriple() string {
return "${config.LinuxGccTriple}"
}
func (t *toolchainLinux) GccVersion() string {
return linuxGccVersion
}
func (t *toolchainLinux) IncludeFlags() string {
return ""
}
func (t *toolchainLinuxX86) ClangTriple() string {
return "i686-linux-gnu"
}
func (t *toolchainLinuxX86) ClangCflags() string {
return "${config.LinuxClangCflags} ${config.LinuxX86ClangCflags}"
}
func (t *toolchainLinuxX86) ClangCppflags() string {
return ""
}
func (t *toolchainLinuxX8664) ClangTriple() string {
return "x86_64-linux-gnu"
}
func (t *toolchainLinuxX8664) ClangCflags() string {
return "${config.LinuxClangCflags} ${config.LinuxX8664ClangCflags}"
}
func (t *toolchainLinuxX8664) ClangCppflags() string {
return ""
}
func (t *toolchainLinuxX86) ClangLdflags() string {
return "${config.LinuxClangLdflags} ${config.LinuxX86ClangLdflags}"
}
func (t *toolchainLinuxX86) ClangLldflags() string {
return "${config.LinuxClangLldflags} ${config.LinuxX86ClangLldflags}"
}
func (t *toolchainLinuxX8664) ClangLdflags() string {
return "${config.LinuxClangLdflags} ${config.LinuxX8664ClangLdflags}"
}
func (t *toolchainLinuxX8664) ClangLldflags() string {
return "${config.LinuxClangLldflags} ${config.LinuxX8664ClangLldflags}"
}
func (t *toolchainLinuxX86) YasmFlags() string {
return "${config.LinuxX86YasmFlags}"
}
func (t *toolchainLinuxX8664) YasmFlags() string {
return "${config.LinuxX8664YasmFlags}"
}
func (t *toolchainLinux) AvailableLibraries() []string {
return linuxAvailableLibraries
}
func (t *toolchainLinux) Bionic() bool {
return false
}
var toolchainLinuxX86Singleton Toolchain = &toolchainLinuxX86{}
var toolchainLinuxX8664Singleton Toolchain = &toolchainLinuxX8664{}
func linuxX86ToolchainFactory(arch android.Arch) Toolchain {
return toolchainLinuxX86Singleton
}
func linuxX8664ToolchainFactory(arch android.Arch) Toolchain {
return toolchainLinuxX8664Singleton
}
func init() {
registerToolchainFactory(android.Linux, android.X86, linuxX86ToolchainFactory)
registerToolchainFactory(android.Linux, android.X86_64, linuxX8664ToolchainFactory)
}
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