Add Rust fuzzing support.
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
diff --git a/rust/config/arm64_device.go b/rust/config/arm64_device.go
index 21b22a4..5066428 100644
--- a/rust/config/arm64_device.go
+++ b/rust/config/arm64_device.go
@@ -26,8 +26,8 @@
Arm64LinkFlags = []string{}
Arm64ArchVariantRustFlags = map[string][]string{
- "armv8-a": []string{},
- "armv8-2a": []string{},
+ "armv8-a": []string{},
+ "armv8-2a": []string{},
"armv8-2a-dotprod": []string{},
}
)
@@ -71,6 +71,10 @@
return true
}
+func (toolchainArm64) LibclangRuntimeLibraryArch() string {
+ return "aarch64"
+}
+
func Arm64ToolchainFactory(arch android.Arch) Toolchain {
archVariant := arch.ArchVariant
if archVariant == "" {
diff --git a/rust/config/arm_device.go b/rust/config/arm_device.go
index adfe917..42c1c02 100644
--- a/rust/config/arm_device.go
+++ b/rust/config/arm_device.go
@@ -72,6 +72,10 @@
return true
}
+func (toolchainArm) LibclangRuntimeLibraryArch() string {
+ return "arm"
+}
+
func ArmToolchainFactory(arch android.Arch) Toolchain {
toolchainRustFlags := []string{
"${config.ArmToolchainRustFlags}",
diff --git a/rust/config/toolchain.go b/rust/config/toolchain.go
index 616d88b..9525c38 100644
--- a/rust/config/toolchain.go
+++ b/rust/config/toolchain.go
@@ -34,6 +34,8 @@
Supported() bool
Bionic() bool
+
+ LibclangRuntimeLibraryArch() string
}
type toolchainBase struct {
@@ -106,6 +108,36 @@
return false
}
+func (toolchainBase) LibclangRuntimeLibraryArch() string {
+ return ""
+}
+
+func LibFuzzerRuntimeLibrary(t Toolchain) string {
+ return LibclangRuntimeLibrary(t, "fuzzer")
+}
+
+func LibclangRuntimeLibrary(t Toolchain, library string) string {
+ arch := t.LibclangRuntimeLibraryArch()
+ if arch == "" {
+ return ""
+ }
+ if !t.Bionic() {
+ return "libclang_rt." + library + "-" + arch
+ }
+ return "libclang_rt." + library + "-" + arch + "-android"
+}
+
+func LibRustRuntimeLibrary(t Toolchain, library string) string {
+ arch := t.LibclangRuntimeLibraryArch()
+ if arch == "" {
+ return ""
+ }
+ if !t.Bionic() {
+ return "librustc_rt." + library + "-" + arch
+ }
+ return "librustc_rt." + library + "-" + arch + "-android"
+}
+
func toolchainBaseFactory() Toolchain {
return &toolchainBase{}
}
diff --git a/rust/config/x86_64_device.go b/rust/config/x86_64_device.go
index 5f6e85a..94b719f 100644
--- a/rust/config/x86_64_device.go
+++ b/rust/config/x86_64_device.go
@@ -77,6 +77,10 @@
return true
}
+func (toolchainX86_64) LibclangRuntimeLibraryArch() string {
+ return "x86_64"
+}
+
func x86_64ToolchainFactory(arch android.Arch) Toolchain {
toolchainRustFlags := []string{
"${config.X86_64ToolchainRustFlags}",
diff --git a/rust/config/x86_device.go b/rust/config/x86_device.go
index daeeb14..aae1125 100644
--- a/rust/config/x86_device.go
+++ b/rust/config/x86_device.go
@@ -80,6 +80,10 @@
return true
}
+func (toolchainX86) LibclangRuntimeLibraryArch() string {
+ return "i686"
+}
+
func x86ToolchainFactory(arch android.Arch) Toolchain {
toolchainRustFlags := []string{
"${config.X86ToolchainRustFlags}",
diff --git a/rust/config/x86_linux_host.go b/rust/config/x86_linux_host.go
index e7f26ce..b63e14d 100644
--- a/rust/config/x86_linux_host.go
+++ b/rust/config/x86_linux_host.go
@@ -103,6 +103,14 @@
return "x86"
}
+func (toolchainLinuxX86) LibclangRuntimeLibraryArch() string {
+ return "i386"
+}
+
+func (toolchainLinuxX8664) LibclangRuntimeLibraryArch() string {
+ return "x86_64"
+}
+
func (t *toolchainLinuxX86) RustTriple() string {
return "i686-unknown-linux-gnu"
}