Add i386 host fuzzing support w/ cc_fuzz.

Adds the host fuzzing support back for 32-bit x86 targets, now that the
toolchain has been updated to export this library.

Bug: 133261679
Test: `m example_fuzzer` on a 32-bit target/cross
Change-Id: I28285d531a53eebd28c9e1b733035be48696b48f

1 files changed, 6 insertions, 10 deletions

diff --git a/cc/fuzz.go b/cc/fuzz.go
index d44c02de6..b0fb262df 100644
--- a/cc/fuzz.go
+++ b/cc/fuzz.go
@@ -15,9 +15,12 @@
 package cc
 
 import (
+	"path/filepath"
+
+	"github.com/google/blueprint/proptools"
+
 	"android/soong/android"
 	"android/soong/cc/config"
-	"github.com/google/blueprint/proptools"
 )
 
 func init() {
@@ -78,21 +81,14 @@ func (fuzz *fuzzBinary) linkerFlags(ctx ModuleContext, flags Flags) Flags {
 }
 
 func (fuzz *fuzzBinary) install(ctx ModuleContext, file android.Path) {
-	fuzz.binaryDecorator.baseInstaller.dir = "fuzz"
-	fuzz.binaryDecorator.baseInstaller.dir64 = "fuzz"
+	fuzz.binaryDecorator.baseInstaller.dir = filepath.Join("fuzz", ctx.Target().Arch.ArchType.String())
+	fuzz.binaryDecorator.baseInstaller.dir64 = filepath.Join("fuzz", ctx.Target().Arch.ArchType.String())
 	fuzz.binaryDecorator.baseInstaller.install(ctx, file)
 }
 
 func NewFuzz(hod android.HostOrDeviceSupported) *Module {
 	module, binary := NewBinary(hod)
 
-	// TODO(mitchp): The toolchain does not currently export the x86 (32-bit)
-	// variant of libFuzzer for host. There is no way to only disable the host
-	// 32-bit variant, so we specify cc_fuzz targets as 64-bit only. This doesn't
-	// hurt anyone, as cc_fuzz is mostly for experimental targets as of this
-	// moment.
-	module.multilib = "64"
-
 	binary.baseInstaller = NewFuzzInstaller()
 	module.sanitize.SetSanitizer(fuzzer, true)