Rust: abort on panic

Test: build (test included in build)
Bug: 162266455
Change-Id: I7f53956d3a35f923d0282d511d6360051f945a88

rust/binary_test.go

@@ -130,6 +130,9 @@ func TestStaticBinaryFlags(t *testing.T) {
 	if !strings.Contains(flags, "-C relocation-model=static") {
 		t.Errorf("static binary missing '-C relocation-model=static' in rustcFlags, found: %#v", flags)
 	}
+	if !strings.Contains(flags, "-C panic=abort") {
+		t.Errorf("static binary missing '-C panic=abort' in rustcFlags, found: %#v", flags)
+	}
 	if !strings.Contains(linkFlags, "-static") {
 		t.Errorf("static binary missing '-static' in linkFlags, found: %#v", flags)
 	}

rust/config/global.go

@@ -49,7 +49,9 @@ var (
 		"-C relocation-model=pic",
 	}
 
-	deviceGlobalRustFlags = []string{}
+	deviceGlobalRustFlags = []string{
+		"-C panic=abort",
+	}
 
 	deviceGlobalLinkFlags = []string{
 		// Prepend the lld flags from cc_config so we stay in sync with cc

rust/test.go

@@ -120,6 +120,9 @@ func (test *testDecorator) compilerFlags(ctx ModuleContext, flags Flags) Flags {
 	if test.testHarness() {
 		flags.RustFlags = append(flags.RustFlags, "--test")
 	}
+	if ctx.Device() {
+		flags.RustFlags = append(flags.RustFlags, "-Z panic_abort_tests")
+	}
 	return flags
 }