Make native_coverage clause work with ClangCoverage

Make uses NATIVE_COVERAGE to enable gcov coverage and CLANG_COVERAGE
to enable clang coverage.  NATIVE_COVERAGE is translated to the Soong
Native_coverage product variable which triggers the native_coverage
clause in Android.bp files.  The clause also needs to be triggered
for CLANG_COVERAGE.

Rename the existing Native_coverage product variable to GcovCoverage,
and regenerate Native_coverage when either GcovCoverage or
ClangCoverage are set.

Also remove NativeLineCoverage, it wasn't doing anything differently
than Native_coverage.

Bug: 159059537
Test: m checkbuild
Merged-In: I215124a9b35a2ad50ad562079d392e3d33da11f4
Change-Id: I215124a9b35a2ad50ad562079d392e3d33da11f4

android/config.go

@@ -406,6 +406,14 @@ func NewConfig(srcDir, buildDir string) (Config, error) {
 		return Config{}, err
 	}
 
+	if Bool(config.productVariables.GcovCoverage) && Bool(config.productVariables.ClangCoverage) {
+		return Config{}, fmt.Errorf("GcovCoverage and ClangCoverage cannot both be set")
+	}
+
+	config.productVariables.Native_coverage = proptools.BoolPtr(
+		Bool(config.productVariables.GcovCoverage) ||
+			Bool(config.productVariables.ClangCoverage))
+
 	return Config{config}, nil
 }
 
@@ -1058,18 +1066,20 @@ func (c *deviceConfig) JavaCoverageEnabledForPath(path string) bool {
 	return coverage
 }
 
-func (c *config) NativeLineCoverage() bool {
-	return Bool(c.productVariables.NativeLineCoverage)
-}
-
+// Returns true if gcov or clang coverage is enabled.
 func (c *deviceConfig) NativeCoverageEnabled() bool {
-	return Bool(c.config.productVariables.Native_coverage) || Bool(c.config.productVariables.NativeLineCoverage)
+	return Bool(c.config.productVariables.GcovCoverage) ||
+		Bool(c.config.productVariables.ClangCoverage)
 }
 
 func (c *deviceConfig) ClangCoverageEnabled() bool {
 	return Bool(c.config.productVariables.ClangCoverage)
 }
 
+func (c *deviceConfig) GcovCoverageEnabled() bool {
+	return Bool(c.config.productVariables.GcovCoverage)
+}
+
 // NativeCoverageEnabledForPath returns whether (GCOV- or Clang-based) native
 // code coverage is enabled for path. By default, coverage is not enabled for a
 // given path unless it is part of the NativeCoveragePaths product variable (and

android/variable.go

@@ -256,12 +256,14 @@ type productVariables struct {
 	JavaCoveragePaths        []string `json:",omitempty"`
 	JavaCoverageExcludePaths []string `json:",omitempty"`
 
-	NativeLineCoverage         *bool    `json:",omitempty"`
-	Native_coverage            *bool    `json:",omitempty"`
+	GcovCoverage               *bool    `json:",omitempty"`
 	ClangCoverage              *bool    `json:",omitempty"`
 	NativeCoveragePaths        []string `json:",omitempty"`
 	NativeCoverageExcludePaths []string `json:",omitempty"`
 
+	// Set by NewConfig
+	Native_coverage *bool
+
 	DevicePrefer32BitApps        *bool `json:",omitempty"`
 	DevicePrefer32BitExecutables *bool `json:",omitempty"`
 	HostPrefer32BitExecutables   *bool `json:",omitempty"`

apex/apex.go

@@ -1660,7 +1660,7 @@ func (a *apexBundle) IsSanitizerEnabled(ctx android.BaseModuleContext, sanitizer
 }
 
 func (a *apexBundle) IsNativeCoverageNeeded(ctx android.BaseModuleContext) bool {
-	return ctx.Device() && (ctx.DeviceConfig().NativeCoverageEnabled() || ctx.DeviceConfig().ClangCoverageEnabled())
+	return ctx.Device() && ctx.DeviceConfig().NativeCoverageEnabled()
 }
 
 func (a *apexBundle) PreventInstall() {

apex/vndk_test.go

@@ -155,6 +155,7 @@ func TestVndkApexUsesVendorVariant(t *testing.T) {
 				sdk_version: "current",
 			}
 		`, func(fs map[string][]byte, config android.Config) {
+			config.TestProductVariables.GcovCoverage = proptools.BoolPtr(true)
 			config.TestProductVariables.Native_coverage = proptools.BoolPtr(true)
 		})
 

cc/coverage.go

@@ -74,8 +74,8 @@ func (cov *coverage) deps(ctx DepsContext, deps Deps) Deps {
 }
 
 func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags, PathDeps) {
-	gcovCoverage := ctx.DeviceConfig().NativeCoverageEnabled()
 	clangCoverage := ctx.DeviceConfig().ClangCoverageEnabled()
+	gcovCoverage := ctx.DeviceConfig().GcovCoverageEnabled()
 
 	if !gcovCoverage && !clangCoverage {
 		return flags, deps
@@ -151,7 +151,7 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
 
 func (cov *coverage) begin(ctx BaseModuleContext) {
 	// Coverage is disabled globally
-	if !ctx.DeviceConfig().NativeCoverageEnabled() && !ctx.DeviceConfig().ClangCoverageEnabled() {
+	if !ctx.DeviceConfig().NativeCoverageEnabled() {
 		return
 	}
 

java/app.go

@@ -947,7 +947,7 @@ func (a *AndroidApp) Privileged() bool {
 }
 
 func (a *AndroidApp) IsNativeCoverageNeeded(ctx android.BaseModuleContext) bool {
-	return ctx.Device() && (ctx.DeviceConfig().NativeCoverageEnabled() || ctx.DeviceConfig().ClangCoverageEnabled())
+	return ctx.Device() && ctx.DeviceConfig().NativeCoverageEnabled()
 }
 
 func (a *AndroidApp) PreventInstall() {