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Diffstat (limited to 'cc/coverage.go')
-rw-r--r--cc/coverage.go159
1 files changed, 120 insertions, 39 deletions
diff --git a/cc/coverage.go b/cc/coverage.go
index c0f697398..a7618dd96 100644
--- a/cc/coverage.go
+++ b/cc/coverage.go
@@ -22,6 +22,29 @@ import (
"android/soong/android"
)
+var (
+ clangCoverageHostLdFlags = []string{
+ "-Wl,--no-as-needed",
+ "-Wl,--wrap,open",
+ }
+ clangContinuousCoverageFlags = []string{
+ "-mllvm",
+ "-runtime-counter-relocation",
+ }
+ clangCoverageCFlags = []string{
+ "-Wno-frame-larger-than=",
+ }
+ clangCoverageCommonFlags = []string{
+ "-fcoverage-mapping",
+ "-Wno-pass-failed",
+ "-D__ANDROID_CLANG_COVERAGE__",
+ }
+ clangCoverageHWASanFlags = []string{
+ "-mllvm",
+ "-hwasan-globals=0",
+ }
+)
+
const profileInstrFlag = "-fprofile-instr-generate=/data/misc/trace/clang-%p-%m.profraw"
type CoverageProperties struct {
@@ -48,6 +71,7 @@ func (cov *coverage) props() []interface{} {
func getGcovProfileLibraryName(ctx ModuleContextIntf) string {
// This function should only ever be called for a cc.Module, so the
// following statement should always succeed.
+ // LINT.IfChange
if ctx.useSdk() {
return "libprofile-extras_ndk"
} else {
@@ -63,10 +87,11 @@ func getClangProfileLibraryName(ctx ModuleContextIntf) string {
} else {
return "libprofile-clang-extras"
}
+ // LINT.ThenChange(library.go)
}
func (cov *coverage) deps(ctx DepsContext, deps Deps) Deps {
- if cov.Properties.NeedCoverageVariant {
+ if cov.Properties.NeedCoverageVariant && ctx.Device() {
ctx.AddVariationDependencies([]blueprint.Variation{
{Mutator: "link", Variation: "static"},
}, CoverageDepTag, getGcovProfileLibraryName(ctx))
@@ -100,19 +125,19 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
// flags that the module may use.
flags.Local.CFlags = append(flags.Local.CFlags, "-Wno-frame-larger-than=", "-O0")
} else if clangCoverage {
- flags.Local.CommonFlags = append(flags.Local.CommonFlags, profileInstrFlag,
- "-fcoverage-mapping", "-Wno-pass-failed", "-D__ANDROID_CLANG_COVERAGE__")
+ flags.Local.CommonFlags = append(flags.Local.CommonFlags, profileInstrFlag)
+ flags.Local.CommonFlags = append(flags.Local.CommonFlags, clangCoverageCommonFlags...)
// Override -Wframe-larger-than. We can expect frame size increase after
// coverage instrumentation.
- flags.Local.CFlags = append(flags.Local.CFlags, "-Wno-frame-larger-than=")
+ flags.Local.CFlags = append(flags.Local.CFlags, clangCoverageCFlags...)
if EnableContinuousCoverage(ctx) {
- flags.Local.CommonFlags = append(flags.Local.CommonFlags, "-mllvm", "-runtime-counter-relocation")
+ flags.Local.CommonFlags = append(flags.Local.CommonFlags, clangContinuousCoverageFlags...)
}
// http://b/248022906, http://b/247941801 enabling coverage and hwasan-globals
// instrumentation together causes duplicate-symbol errors for __llvm_profile_filename.
if c, ok := ctx.Module().(*Module); ok && c.sanitize.isSanitizerEnabled(Hwasan) {
- flags.Local.CommonFlags = append(flags.Local.CommonFlags, "-mllvm", "-hwasan-globals=0")
+ flags.Local.CommonFlags = append(flags.Local.CommonFlags, clangCoverageHWASanFlags...)
}
}
}
@@ -159,19 +184,22 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
if gcovCoverage {
flags.Local.LdFlags = append(flags.Local.LdFlags, "--coverage")
- coverage := ctx.GetDirectDepWithTag(getGcovProfileLibraryName(ctx), CoverageDepTag).(*Module)
- deps.WholeStaticLibs = append(deps.WholeStaticLibs, coverage.OutputFile().Path())
-
- flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,--wrap,getenv")
+ if ctx.Device() {
+ coverage := ctx.GetDirectDepWithTag(getGcovProfileLibraryName(ctx), CoverageDepTag).(*Module)
+ deps.WholeStaticLibs = append(deps.WholeStaticLibs, coverage.OutputFile().Path())
+ flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,--wrap,getenv")
+ }
} else if clangCoverage {
flags.Local.LdFlags = append(flags.Local.LdFlags, profileInstrFlag)
if EnableContinuousCoverage(ctx) {
flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,-mllvm=-runtime-counter-relocation")
}
- coverage := ctx.GetDirectDepWithTag(getClangProfileLibraryName(ctx), CoverageDepTag).(*Module)
- deps.WholeStaticLibs = append(deps.WholeStaticLibs, coverage.OutputFile().Path())
- flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,--wrap,open")
+ if ctx.Device() {
+ coverage := ctx.GetDirectDepWithTag(getClangProfileLibraryName(ctx), CoverageDepTag).(*Module)
+ deps.WholeStaticLibs = append(deps.WholeStaticLibs, coverage.OutputFile().Path())
+ flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,--wrap,open")
+ }
}
}
@@ -179,7 +207,7 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
}
func (cov *coverage) begin(ctx BaseModuleContext) {
- if ctx.Host() {
+ if ctx.Host() && !ctx.Os().Linux() {
// TODO(dwillemsen): because of -nodefaultlibs, we must depend on libclang_rt.profile-*.a
// Just turn off for now.
} else {
@@ -219,9 +247,19 @@ func SetCoverageProperties(ctx android.BaseModuleContext, properties CoveragePro
return properties
}
+type IsNativeCoverageNeededContext interface {
+ Config() android.Config
+ DeviceConfig() android.DeviceConfig
+ Device() bool
+}
+
+var _ IsNativeCoverageNeededContext = android.IncomingTransitionContext(nil)
+var _ IsNativeCoverageNeededContext = android.BaseModuleContext(nil)
+var _ IsNativeCoverageNeededContext = android.BottomUpMutatorContext(nil)
+
type UseCoverage interface {
android.Module
- IsNativeCoverageNeeded(ctx android.BaseModuleContext) bool
+ IsNativeCoverageNeeded(ctx IsNativeCoverageNeededContext) bool
}
// Coverage is an interface for non-CC modules to implement to be mutated for coverage
@@ -233,43 +271,86 @@ type Coverage interface {
EnableCoverageIfNeeded()
}
-func coverageMutator(mctx android.BottomUpMutatorContext) {
- if c, ok := mctx.Module().(*Module); ok && c.coverage != nil {
- needCoverageVariant := c.coverage.Properties.NeedCoverageVariant
- needCoverageBuild := c.coverage.Properties.NeedCoverageBuild
- if needCoverageVariant {
- m := mctx.CreateVariations("", "cov")
+type coverageTransitionMutator struct{}
+
+var _ android.TransitionMutator = (*coverageTransitionMutator)(nil)
+
+func (c coverageTransitionMutator) Split(ctx android.BaseModuleContext) []string {
+ if c, ok := ctx.Module().(*Module); ok && c.coverage != nil {
+ if c.coverage.Properties.NeedCoverageVariant {
+ return []string{"", "cov"}
+ }
+ } else if cov, ok := ctx.Module().(Coverage); ok && cov.IsNativeCoverageNeeded(ctx) {
+ // APEX and Rust modules fall here
+
+ // Note: variant "" is also created because an APEX can be depended on by another
+ // module which are split into "" and "cov" variants. e.g. when cc_test refers
+ // to an APEX via 'data' property.
+ return []string{"", "cov"}
+ } else if cov, ok := ctx.Module().(UseCoverage); ok && cov.IsNativeCoverageNeeded(ctx) {
+ // Module itself doesn't have to have "cov" variant, but it should use "cov" variants of
+ // deps.
+ return []string{"cov"}
+ }
+
+ return []string{""}
+}
+
+func (c coverageTransitionMutator) OutgoingTransition(ctx android.OutgoingTransitionContext, sourceVariation string) string {
+ return sourceVariation
+}
+func (c coverageTransitionMutator) IncomingTransition(ctx android.IncomingTransitionContext, incomingVariation string) string {
+ if c, ok := ctx.Module().(*Module); ok && c.coverage != nil {
+ if !c.coverage.Properties.NeedCoverageVariant {
+ return ""
+ }
+ } else if cov, ok := ctx.Module().(Coverage); ok {
+ if !cov.IsNativeCoverageNeeded(ctx) {
+ return ""
+ }
+ } else if cov, ok := ctx.Module().(UseCoverage); ok && cov.IsNativeCoverageNeeded(ctx) {
+ // Module only has a "cov" variation, so all incoming variations should use "cov".
+ return "cov"
+ } else {
+ return ""
+ }
+
+ return incomingVariation
+}
+
+func (c coverageTransitionMutator) Mutate(ctx android.BottomUpMutatorContext, variation string) {
+ if c, ok := ctx.Module().(*Module); ok && c.coverage != nil {
+ if variation == "" && c.coverage.Properties.NeedCoverageVariant {
// Setup the non-coverage version and set HideFromMake and
// PreventInstall to true.
- m[0].(*Module).coverage.Properties.CoverageEnabled = false
- m[0].(*Module).coverage.Properties.IsCoverageVariant = false
- m[0].(*Module).Properties.HideFromMake = true
- m[0].(*Module).Properties.PreventInstall = true
-
+ c.coverage.Properties.CoverageEnabled = false
+ c.coverage.Properties.IsCoverageVariant = false
+ c.Properties.HideFromMake = true
+ c.Properties.PreventInstall = true
+ } else if variation == "cov" {
// The coverage-enabled version inherits HideFromMake,
// PreventInstall from the original module.
- m[1].(*Module).coverage.Properties.CoverageEnabled = needCoverageBuild
- m[1].(*Module).coverage.Properties.IsCoverageVariant = true
+ c.coverage.Properties.CoverageEnabled = c.coverage.Properties.NeedCoverageBuild
+ c.coverage.Properties.IsCoverageVariant = true
}
- } else if cov, ok := mctx.Module().(Coverage); ok && cov.IsNativeCoverageNeeded(mctx) {
+ } else if cov, ok := ctx.Module().(Coverage); ok && cov.IsNativeCoverageNeeded(ctx) {
// APEX and Rust modules fall here
// Note: variant "" is also created because an APEX can be depended on by another
// module which are split into "" and "cov" variants. e.g. when cc_test refers
// to an APEX via 'data' property.
- m := mctx.CreateVariations("", "cov")
- m[0].(Coverage).MarkAsCoverageVariant(false)
- m[0].(Coverage).SetPreventInstall()
- m[0].(Coverage).HideFromMake()
-
- m[1].(Coverage).MarkAsCoverageVariant(true)
- m[1].(Coverage).EnableCoverageIfNeeded()
- } else if cov, ok := mctx.Module().(UseCoverage); ok && cov.IsNativeCoverageNeeded(mctx) {
+ if variation == "" {
+ cov.MarkAsCoverageVariant(false)
+ cov.SetPreventInstall()
+ cov.HideFromMake()
+ } else if variation == "cov" {
+ cov.MarkAsCoverageVariant(true)
+ cov.EnableCoverageIfNeeded()
+ }
+ } else if cov, ok := ctx.Module().(UseCoverage); ok && cov.IsNativeCoverageNeeded(ctx) {
// Module itself doesn't have to have "cov" variant, but it should use "cov" variants of
// deps.
- mctx.CreateVariations("cov")
- mctx.AliasVariation("cov")
}
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-26 13:23:08 +0000