6cd99e6ab4
Add a rust_fuzz module which builds a libfuzzer binary that enabes asan+sancov. This relies on the libfuzzer-sys crate. Bug: 147140513 Test: Local rust_fuzz example builds, fuzzes with asan+sancov. Change-Id: I57db3b8d25869791824ccfab768d13b0bb9d42fa
162 lines
3.5 KiB
Go
162 lines
3.5 KiB
Go
// Copyright 2019 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"android/soong/android"
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)
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type Toolchain interface {
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RustTriple() string
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ToolchainRustFlags() string
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ToolchainLinkFlags() string
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SharedLibSuffix() string
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StaticLibSuffix() string
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RlibSuffix() string
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DylibSuffix() string
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ProcMacroSuffix() string
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ExecutableSuffix() string
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Is64Bit() bool
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Supported() bool
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Bionic() bool
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LibclangRuntimeLibraryArch() string
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}
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type toolchainBase struct {
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}
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func (toolchainBase) RustTriple() string {
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panic("toolchainBase does not define a triple.")
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}
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func (toolchainBase) ToolchainRustFlags() string {
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panic("toolchainBase does not provide rust flags.")
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}
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func (toolchainBase) ToolchainLinkFlags() string {
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panic("toolchainBase does not provide link flags.")
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}
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func (toolchainBase) Is64Bit() bool {
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panic("toolchainBase cannot determine datapath width.")
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}
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func (toolchainBase) Bionic() bool {
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return true
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}
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type toolchain64Bit struct {
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toolchainBase
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}
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func (toolchain64Bit) Is64Bit() bool {
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return true
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}
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type toolchain32Bit struct {
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toolchainBase
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}
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func (toolchain32Bit) Is64Bit() bool {
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return false
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}
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func (toolchain32Bit) Bionic() bool {
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return true
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}
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func (toolchainBase) ExecutableSuffix() string {
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return ""
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}
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func (toolchainBase) SharedLibSuffix() string {
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return ".so"
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}
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func (toolchainBase) StaticLibSuffix() string {
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return ".a"
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}
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func (toolchainBase) RlibSuffix() string {
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return ".rlib"
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}
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func (toolchainBase) DylibSuffix() string {
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return ".dylib.so"
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}
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func (toolchainBase) ProcMacroSuffix() string {
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return ".so"
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}
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func (toolchainBase) Supported() bool {
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return false
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}
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func (toolchainBase) LibclangRuntimeLibraryArch() string {
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return ""
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}
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func LibFuzzerRuntimeLibrary(t Toolchain) string {
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return LibclangRuntimeLibrary(t, "fuzzer")
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}
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func LibclangRuntimeLibrary(t Toolchain, library string) string {
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arch := t.LibclangRuntimeLibraryArch()
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if arch == "" {
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return ""
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}
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if !t.Bionic() {
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return "libclang_rt." + library + "-" + arch
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}
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return "libclang_rt." + library + "-" + arch + "-android"
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}
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func LibRustRuntimeLibrary(t Toolchain, library string) string {
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arch := t.LibclangRuntimeLibraryArch()
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if arch == "" {
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return ""
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}
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if !t.Bionic() {
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return "librustc_rt." + library + "-" + arch
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}
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return "librustc_rt." + library + "-" + arch + "-android"
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}
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func toolchainBaseFactory() Toolchain {
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return &toolchainBase{}
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}
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type toolchainFactory func(arch android.Arch) Toolchain
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var toolchainFactories = make(map[android.OsType]map[android.ArchType]toolchainFactory)
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func registerToolchainFactory(os android.OsType, arch android.ArchType, factory toolchainFactory) {
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if toolchainFactories[os] == nil {
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toolchainFactories[os] = make(map[android.ArchType]toolchainFactory)
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}
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toolchainFactories[os][arch] = factory
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}
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func FindToolchain(os android.OsType, arch android.Arch) Toolchain {
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factory := toolchainFactories[os][arch.ArchType]
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if factory == nil {
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return toolchainBaseFactory()
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}
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return factory(arch)
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}
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