Merge "Support cc_object modules in mixed builds"

This commit is contained in:
Christopher Parsons 2021-03-02 16:44:56 +00:00 committed by Gerrit Code Review
commit bc39e17a1d
5 changed files with 329 additions and 53 deletions

View file

@ -36,12 +36,14 @@ type CqueryRequestType int
const ( const (
getAllFiles CqueryRequestType = iota getAllFiles CqueryRequestType = iota
getCcObjectFiles
) )
// Map key to describe bazel cquery requests. // Map key to describe bazel cquery requests.
type cqueryKey struct { type cqueryKey struct {
label string label string
requestType CqueryRequestType requestType CqueryRequestType
archType ArchType
} }
type BazelContext interface { type BazelContext interface {
@ -50,7 +52,11 @@ type BazelContext interface {
// has been queued to be run later. // has been queued to be run later.
// Returns result files built by building the given bazel target label. // Returns result files built by building the given bazel target label.
GetAllFiles(label string) ([]string, bool) GetAllFiles(label string, archType ArchType) ([]string, bool)
// Returns object files produced by compiling the given cc-related target.
// Retrieves these files from Bazel's CcInfo provider.
GetCcObjectFiles(label string, archType ArchType) ([]string, bool)
// TODO(cparsons): Other cquery-related methods should be added here. // TODO(cparsons): Other cquery-related methods should be added here.
// ** End cquery methods // ** End cquery methods
@ -100,7 +106,12 @@ type MockBazelContext struct {
AllFiles map[string][]string AllFiles map[string][]string
} }
func (m MockBazelContext) GetAllFiles(label string) ([]string, bool) { func (m MockBazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
result, ok := m.AllFiles[label]
return result, ok
}
func (m MockBazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
result, ok := m.AllFiles[label] result, ok := m.AllFiles[label]
return result, ok return result, ok
} }
@ -123,8 +134,8 @@ func (m MockBazelContext) BuildStatementsToRegister() []bazel.BuildStatement {
var _ BazelContext = MockBazelContext{} var _ BazelContext = MockBazelContext{}
func (bazelCtx *bazelContext) GetAllFiles(label string) ([]string, bool) { func (bazelCtx *bazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
result, ok := bazelCtx.cquery(label, getAllFiles) result, ok := bazelCtx.cquery(label, getAllFiles, archType)
if ok { if ok {
bazelOutput := strings.TrimSpace(result) bazelOutput := strings.TrimSpace(result)
return strings.Split(bazelOutput, ", "), true return strings.Split(bazelOutput, ", "), true
@ -133,7 +144,21 @@ func (bazelCtx *bazelContext) GetAllFiles(label string) ([]string, bool) {
} }
} }
func (n noopBazelContext) GetAllFiles(label string) ([]string, bool) { func (bazelCtx *bazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
result, ok := bazelCtx.cquery(label, getCcObjectFiles, archType)
if ok {
bazelOutput := strings.TrimSpace(result)
return strings.Split(bazelOutput, ", "), true
} else {
return nil, false
}
}
func (n noopBazelContext) GetAllFiles(label string, archType ArchType) ([]string, bool) {
panic("unimplemented")
}
func (n noopBazelContext) GetCcObjectFiles(label string, archType ArchType) ([]string, bool) {
panic("unimplemented") panic("unimplemented")
} }
@ -207,8 +232,9 @@ func (context *bazelContext) BazelEnabled() bool {
// If the given request was already made (and the results are available), then // If the given request was already made (and the results are available), then
// returns (result, true). If the request is queued but no results are available, // returns (result, true). If the request is queued but no results are available,
// then returns ("", false). // then returns ("", false).
func (context *bazelContext) cquery(label string, requestType CqueryRequestType) (string, bool) { func (context *bazelContext) cquery(label string, requestType CqueryRequestType,
key := cqueryKey{label, requestType} archType ArchType) (string, bool) {
key := cqueryKey{label, requestType, archType}
if result, ok := context.results[key]; ok { if result, ok := context.results[key]; ok {
return result, true return result, true
} else { } else {
@ -241,17 +267,21 @@ func (context *bazelContext) issueBazelCommand(runName bazel.RunName, command st
fmt.Sprintf("--platforms=%s", canonicalizeLabel("//build/bazel/platforms:generic_x86_64"))) fmt.Sprintf("--platforms=%s", canonicalizeLabel("//build/bazel/platforms:generic_x86_64")))
cmdFlags = append(cmdFlags, cmdFlags = append(cmdFlags,
fmt.Sprintf("--extra_toolchains=%s", canonicalizeLabel("//prebuilts/clang/host/linux-x86:all"))) fmt.Sprintf("--extra_toolchains=%s", canonicalizeLabel("//prebuilts/clang/host/linux-x86:all")))
// Explicitly disable downloading rules (such as canonical C++ and Java rules) from the network.
cmdFlags = append(cmdFlags, "--experimental_repository_disable_download")
cmdFlags = append(cmdFlags, extraFlags...) cmdFlags = append(cmdFlags, extraFlags...)
bazelCmd := exec.Command(context.bazelPath, cmdFlags...) bazelCmd := exec.Command(context.bazelPath, cmdFlags...)
bazelCmd.Dir = context.workspaceDir bazelCmd.Dir = context.workspaceDir
bazelCmd.Env = append(os.Environ(), "HOME="+context.homeDir, pwdPrefix()) bazelCmd.Env = append(os.Environ(), "HOME="+context.homeDir, pwdPrefix(),
// Disables local host detection of gcc; toolchain information is defined
// explicitly in BUILD files.
"BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1")
stderr := &bytes.Buffer{} stderr := &bytes.Buffer{}
bazelCmd.Stderr = stderr bazelCmd.Stderr = stderr
if output, err := bazelCmd.Output(); err != nil { if output, err := bazelCmd.Output(); err != nil {
return "", fmt.Errorf("bazel command failed. command: [%s], error [%s]", bazelCmd, stderr) return "", fmt.Errorf("bazel command failed. command: [%s], env: [%s], error [%s]", bazelCmd, bazelCmd.Env, stderr)
} else { } else {
return string(output), nil return string(output), nil
} }
@ -273,20 +303,81 @@ local_repository(
} }
func (context *bazelContext) mainBzlFileContents() []byte { func (context *bazelContext) mainBzlFileContents() []byte {
// TODO(cparsons): Define configuration transitions programmatically based
// on available archs.
contents := ` contents := `
##################################################### #####################################################
# This file is generated by soong_build. Do not edit. # This file is generated by soong_build. Do not edit.
##################################################### #####################################################
def _x86_64_transition_impl(settings, attr):
return {
"//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_x86_64",
}
def _x86_transition_impl(settings, attr):
return {
"//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_x86",
}
def _arm64_transition_impl(settings, attr):
return {
"//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_arm64",
}
def _arm_transition_impl(settings, attr):
return {
"//command_line_option:platforms": "@sourceroot//build/bazel/platforms:generic_arm",
}
x86_64_transition = transition(
implementation = _x86_64_transition_impl,
inputs = [],
outputs = [
"//command_line_option:platforms",
],
)
x86_transition = transition(
implementation = _x86_transition_impl,
inputs = [],
outputs = [
"//command_line_option:platforms",
],
)
arm64_transition = transition(
implementation = _arm64_transition_impl,
inputs = [],
outputs = [
"//command_line_option:platforms",
],
)
arm_transition = transition(
implementation = _arm_transition_impl,
inputs = [],
outputs = [
"//command_line_option:platforms",
],
)
def _mixed_build_root_impl(ctx): def _mixed_build_root_impl(ctx):
return [DefaultInfo(files = depset(ctx.files.deps))] all_files = ctx.files.deps_x86_64 + ctx.files.deps_x86 + ctx.files.deps_arm64 + ctx.files.deps_arm
return [DefaultInfo(files = depset(all_files))]
# Rule representing the root of the build, to depend on all Bazel targets that # Rule representing the root of the build, to depend on all Bazel targets that
# are required for the build. Building this target will build the entire Bazel # are required for the build. Building this target will build the entire Bazel
# build tree. # build tree.
mixed_build_root = rule( mixed_build_root = rule(
implementation = _mixed_build_root_impl, implementation = _mixed_build_root_impl,
attrs = {"deps" : attr.label_list()}, attrs = {
"deps_x86_64" : attr.label_list(cfg = x86_64_transition),
"deps_x86" : attr.label_list(cfg = x86_transition),
"deps_arm64" : attr.label_list(cfg = arm64_transition),
"deps_arm" : attr.label_list(cfg = arm_transition),
"_allowlist_function_transition": attr.label(default = "@bazel_tools//tools/allowlists/function_transition_allowlist"),
},
) )
def _phony_root_impl(ctx): def _phony_root_impl(ctx):
@ -317,25 +408,48 @@ func canonicalizeLabel(label string) string {
} }
func (context *bazelContext) mainBuildFileContents() []byte { func (context *bazelContext) mainBuildFileContents() []byte {
// TODO(cparsons): Map label to attribute programmatically; don't use hard-coded
// architecture mapping.
formatString := ` formatString := `
# This file is generated by soong_build. Do not edit. # This file is generated by soong_build. Do not edit.
load(":main.bzl", "mixed_build_root", "phony_root") load(":main.bzl", "mixed_build_root", "phony_root")
mixed_build_root(name = "buildroot", mixed_build_root(name = "buildroot",
deps = [%s], deps_x86_64 = [%s],
deps_x86 = [%s],
deps_arm64 = [%s],
deps_arm = [%s],
) )
phony_root(name = "phonyroot", phony_root(name = "phonyroot",
deps = [":buildroot"], deps = [":buildroot"],
) )
` `
var buildRootDeps []string = nil var deps_x86_64 []string = nil
var deps_x86 []string = nil
var deps_arm64 []string = nil
var deps_arm []string = nil
for val, _ := range context.requests { for val, _ := range context.requests {
buildRootDeps = append(buildRootDeps, fmt.Sprintf("\"%s\"", canonicalizeLabel(val.label))) labelString := fmt.Sprintf("\"%s\"", canonicalizeLabel(val.label))
switch getArchString(val) {
case "x86_64":
deps_x86_64 = append(deps_x86_64, labelString)
case "x86":
deps_x86 = append(deps_x86, labelString)
case "arm64":
deps_arm64 = append(deps_arm64, labelString)
case "arm":
deps_arm = append(deps_arm, labelString)
default:
panic(fmt.Sprintf("unhandled architecture %s for %s", getArchString(val), val))
}
} }
buildRootDepsString := strings.Join(buildRootDeps, ",\n ")
return []byte(fmt.Sprintf(formatString, buildRootDepsString)) return []byte(fmt.Sprintf(formatString,
strings.Join(deps_x86_64, ",\n "),
strings.Join(deps_x86, ",\n "),
strings.Join(deps_arm64, ",\n "),
strings.Join(deps_arm, ",\n ")))
} }
func (context *bazelContext) cqueryStarlarkFileContents() []byte { func (context *bazelContext) cqueryStarlarkFileContents() []byte {
@ -345,23 +459,64 @@ getAllFilesLabels = {
%s %s
} }
getCcObjectFilesLabels = {
%s
}
def get_cc_object_files(target):
result = []
linker_inputs = providers(target)["CcInfo"].linking_context.linker_inputs.to_list()
for linker_input in linker_inputs:
for library in linker_input.libraries:
for object in library.objects:
result += [object.path]
return result
def get_arch(target):
buildoptions = build_options(target)
platforms = build_options(target)["//command_line_option:platforms"]
if len(platforms) != 1:
# An individual configured target should have only one platform architecture.
# Note that it's fine for there to be multiple architectures for the same label,
# but each is its own configured target.
fail("expected exactly 1 platform for " + str(target.label) + " but got " + str(platforms))
platform_name = build_options(target)["//command_line_option:platforms"][0].name
if platform_name == "host":
return "HOST"
elif not platform_name.startswith("generic_"):
fail("expected platform name of the form 'generic_<arch>', but was " + str(platforms))
return "UNKNOWN"
return platform_name[len("generic_"):]
def format(target): def format(target):
if str(target.label) in getAllFilesLabels: id_string = str(target.label) + "|" + get_arch(target)
return str(target.label) + ">>" + ', '.join([f.path for f in target.files.to_list()]) if id_string in getAllFilesLabels:
return id_string + ">>" + ', '.join([f.path for f in target.files.to_list()])
elif id_string in getCcObjectFilesLabels:
return id_string + ">>" + ', '.join(get_cc_object_files(target))
else: else:
# This target was not requested via cquery, and thus must be a dependency # This target was not requested via cquery, and thus must be a dependency
# of a requested target. # of a requested target.
return "" return id_string + ">>NONE"
` `
var buildRootDeps []string = nil var getAllFilesDeps []string = nil
// TODO(cparsons): Sort by request type instead of assuming all requests var getCcObjectFilesDeps []string = nil
// are of GetAllFiles type.
for val, _ := range context.requests {
buildRootDeps = append(buildRootDeps, fmt.Sprintf("\"%s\" : True", canonicalizeLabel(val.label)))
}
buildRootDepsString := strings.Join(buildRootDeps, ",\n ")
return []byte(fmt.Sprintf(formatString, buildRootDepsString)) for val, _ := range context.requests {
labelWithArch := getCqueryId(val)
mapEntryString := fmt.Sprintf("%q : True", labelWithArch)
switch val.requestType {
case getAllFiles:
getAllFilesDeps = append(getAllFilesDeps, mapEntryString)
case getCcObjectFiles:
getCcObjectFilesDeps = append(getCcObjectFilesDeps, mapEntryString)
}
}
getAllFilesDepsString := strings.Join(getAllFilesDeps, ",\n ")
getCcObjectFilesDepsString := strings.Join(getCcObjectFilesDeps, ",\n ")
return []byte(fmt.Sprintf(formatString, getAllFilesDepsString, getCcObjectFilesDepsString))
} }
// Returns a workspace-relative path containing build-related metadata required // Returns a workspace-relative path containing build-related metadata required
@ -414,9 +569,15 @@ func (context *bazelContext) InvokeBazel() error {
} }
buildrootLabel := "//:buildroot" buildrootLabel := "//:buildroot"
cqueryOutput, err = context.issueBazelCommand(bazel.CqueryBuildRootRunName, "cquery", cqueryOutput, err = context.issueBazelCommand(bazel.CqueryBuildRootRunName, "cquery",
[]string{fmt.Sprintf("deps(%s)", buildrootLabel)}, []string{fmt.Sprintf("kind(rule, deps(%s))", buildrootLabel)},
"--output=starlark", "--output=starlark",
"--starlark:file="+cqueryFileRelpath) "--starlark:file="+cqueryFileRelpath)
err = ioutil.WriteFile(
absolutePath(filepath.Join(context.intermediatesDir(), "cquery.out")),
[]byte(cqueryOutput), 0666)
if err != nil {
return err
}
if err != nil { if err != nil {
return err return err
@ -431,10 +592,10 @@ func (context *bazelContext) InvokeBazel() error {
} }
for val, _ := range context.requests { for val, _ := range context.requests {
if cqueryResult, ok := cqueryResults[canonicalizeLabel(val.label)]; ok { if cqueryResult, ok := cqueryResults[getCqueryId(val)]; ok {
context.results[val] = string(cqueryResult) context.results[val] = string(cqueryResult)
} else { } else {
return fmt.Errorf("missing result for bazel target %s", val.label) return fmt.Errorf("missing result for bazel target %s. query output: [%s]", getCqueryId(val), cqueryOutput)
} }
} }
@ -510,6 +671,9 @@ func (c *bazelSingleton) GenerateBuildActions(ctx SingletonContext) {
// Register bazel-owned build statements (obtained from the aquery invocation). // Register bazel-owned build statements (obtained from the aquery invocation).
for index, buildStatement := range ctx.Config().BazelContext.BuildStatementsToRegister() { for index, buildStatement := range ctx.Config().BazelContext.BuildStatementsToRegister() {
if len(buildStatement.Command) < 1 {
panic(fmt.Sprintf("unhandled build statement: %s", buildStatement))
}
rule := NewRuleBuilder(pctx, ctx) rule := NewRuleBuilder(pctx, ctx)
cmd := rule.Command() cmd := rule.Command()
cmd.Text(fmt.Sprintf("cd %s/execroot/__main__ && %s", cmd.Text(fmt.Sprintf("cd %s/execroot/__main__ && %s",
@ -531,3 +695,16 @@ func (c *bazelSingleton) GenerateBuildActions(ctx SingletonContext) {
rule.Build(fmt.Sprintf("bazel %d", index), buildStatement.Mnemonic) rule.Build(fmt.Sprintf("bazel %d", index), buildStatement.Mnemonic)
} }
} }
func getCqueryId(key cqueryKey) string {
return canonicalizeLabel(key.label) + "|" + getArchString(key)
}
func getArchString(key cqueryKey) string {
arch := key.archType.Name
if len(arch) > 0 {
return arch
} else {
return "x86_64"
}
}

View file

@ -115,7 +115,23 @@ func AqueryBuildStatements(aqueryJsonProto []byte) ([]BuildStatement, error) {
// may be an expensive operation. // may be an expensive operation.
depsetIdToArtifactIdsCache := map[int][]int{} depsetIdToArtifactIdsCache := map[int][]int{}
// Do a pass through all actions to identify which artifacts are middleman artifacts.
// These will be omitted from the inputs of other actions.
// TODO(b/180945500): Handle middleman actions; without proper handling, depending on generated
// headers may cause build failures.
middlemanArtifactIds := map[int]bool{}
for _, actionEntry := range aqueryResult.Actions { for _, actionEntry := range aqueryResult.Actions {
if actionEntry.Mnemonic == "Middleman" {
for _, outputId := range actionEntry.OutputIds {
middlemanArtifactIds[outputId] = true
}
}
}
for _, actionEntry := range aqueryResult.Actions {
if shouldSkipAction(actionEntry) {
continue
}
outputPaths := []string{} outputPaths := []string{}
for _, outputId := range actionEntry.OutputIds { for _, outputId := range actionEntry.OutputIds {
outputPath, exists := artifactIdToPath[outputId] outputPath, exists := artifactIdToPath[outputId]
@ -132,6 +148,10 @@ func AqueryBuildStatements(aqueryJsonProto []byte) ([]BuildStatement, error) {
return nil, err return nil, err
} }
for _, inputId := range inputArtifacts { for _, inputId := range inputArtifacts {
if _, isMiddlemanArtifact := middlemanArtifactIds[inputId]; isMiddlemanArtifact {
// Omit middleman artifacts.
continue
}
inputPath, exists := artifactIdToPath[inputId] inputPath, exists := artifactIdToPath[inputId]
if !exists { if !exists {
return nil, fmt.Errorf("undefined input artifactId %d", inputId) return nil, fmt.Errorf("undefined input artifactId %d", inputId)
@ -145,12 +165,38 @@ func AqueryBuildStatements(aqueryJsonProto []byte) ([]BuildStatement, error) {
InputPaths: inputPaths, InputPaths: inputPaths,
Env: actionEntry.EnvironmentVariables, Env: actionEntry.EnvironmentVariables,
Mnemonic: actionEntry.Mnemonic} Mnemonic: actionEntry.Mnemonic}
if len(actionEntry.Arguments) < 1 {
return nil, fmt.Errorf("received action with no command: [%s]", buildStatement)
continue
}
buildStatements = append(buildStatements, buildStatement) buildStatements = append(buildStatements, buildStatement)
} }
return buildStatements, nil return buildStatements, nil
} }
func shouldSkipAction(a action) bool {
// TODO(b/180945121): Handle symlink actions.
if a.Mnemonic == "Symlink" || a.Mnemonic == "SourceSymlinkManifest" || a.Mnemonic == "SymlinkTree" {
return true
}
// TODO(b/180945500): Handle middleman actions; without proper handling, depending on generated
// headers may cause build failures.
if a.Mnemonic == "Middleman" {
return true
}
// Skip "Fail" actions, which are placeholder actions designed to always fail.
if a.Mnemonic == "Fail" {
return true
}
// TODO(b/180946980): Handle FileWrite. The aquery proto currently contains no information
// about the contents that are written.
if a.Mnemonic == "FileWrite" {
return true
}
return false
}
func artifactIdsFromDepsetId(depsetIdToDepset map[int]depSetOfFiles, func artifactIdsFromDepsetId(depsetIdToDepset map[int]depSetOfFiles,
depsetIdToArtifactIdsCache map[int][]int, depsetId int) ([]int, error) { depsetIdToArtifactIdsCache map[int][]int, depsetId int) ([]int, error) {
if result, exists := depsetIdToArtifactIdsCache[depsetId]; exists { if result, exists := depsetIdToArtifactIdsCache[depsetId]; exists {

View file

@ -577,6 +577,17 @@ type installer interface {
makeUninstallable(mod *Module) makeUninstallable(mod *Module)
} }
// bazelHandler is the interface for a helper object related to deferring to Bazel for
// processing a module (during Bazel mixed builds). Individual module types should define
// their own bazel handler if they support deferring to Bazel.
type bazelHandler interface {
// Issue query to Bazel to retrieve information about Bazel's view of the current module.
// If Bazel returns this information, set module properties on the current module to reflect
// the returned information.
// Returns true if information was available from Bazel, false if bazel invocation still needs to occur.
generateBazelBuildActions(ctx android.ModuleContext, label string) bool
}
type xref interface { type xref interface {
XrefCcFiles() android.Paths XrefCcFiles() android.Paths
} }
@ -779,9 +790,10 @@ type Module struct {
// type-specific logic. These members may reference different objects or the same object. // type-specific logic. These members may reference different objects or the same object.
// Functions of these decorators will be invoked to initialize and register type-specific // Functions of these decorators will be invoked to initialize and register type-specific
// build statements. // build statements.
compiler compiler compiler compiler
linker linker linker linker
installer installer installer installer
bazelHandler bazelHandler
features []feature features []feature
stl *stl stl *stl
@ -1559,24 +1571,7 @@ func (c *Module) getNameSuffixWithVndkVersion(ctx android.ModuleContext) string
return nameSuffix return nameSuffix
} }
func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) { func (c *Module) setSubnameProperty(actx android.ModuleContext) {
// Handle the case of a test module split by `test_per_src` mutator.
//
// The `test_per_src` mutator adds an extra variation named "", depending on all the other
// `test_per_src` variations of the test module. Set `outputFile` to an empty path for this
// module and return early, as this module does not produce an output file per se.
if c.IsTestPerSrcAllTestsVariation() {
c.outputFile = android.OptionalPath{}
return
}
apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
if !apexInfo.IsForPlatform() {
c.hideApexVariantFromMake = true
}
c.makeLinkType = GetMakeLinkType(actx, c)
c.Properties.SubName = "" c.Properties.SubName = ""
if c.Target().NativeBridge == android.NativeBridgeEnabled { if c.Target().NativeBridge == android.NativeBridgeEnabled {
@ -1606,6 +1601,43 @@ func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
c.Properties.SubName += "." + c.SdkVersion() c.Properties.SubName += "." + c.SdkVersion()
} }
} }
}
// Returns true if Bazel was successfully used for the analysis of this module.
func (c *Module) maybeGenerateBazelActions(actx android.ModuleContext) bool {
bazelModuleLabel := c.GetBazelLabel()
bazelActionsUsed := false
if c.bazelHandler != nil && actx.Config().BazelContext.BazelEnabled() && len(bazelModuleLabel) > 0 {
bazelActionsUsed = c.bazelHandler.generateBazelBuildActions(actx, bazelModuleLabel)
}
return bazelActionsUsed
}
func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
// TODO(cparsons): Any logic in this method occurring prior to querying Bazel should be
// requested from Bazel instead.
// Handle the case of a test module split by `test_per_src` mutator.
//
// The `test_per_src` mutator adds an extra variation named "", depending on all the other
// `test_per_src` variations of the test module. Set `outputFile` to an empty path for this
// module and return early, as this module does not produce an output file per se.
if c.IsTestPerSrcAllTestsVariation() {
c.outputFile = android.OptionalPath{}
return
}
c.setSubnameProperty(actx)
apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
if !apexInfo.IsForPlatform() {
c.hideApexVariantFromMake = true
}
if c.maybeGenerateBazelActions(actx) {
return
}
c.makeLinkType = GetMakeLinkType(actx, c)
ctx := &moduleContext{ ctx := &moduleContext{
ModuleContext: actx, ModuleContext: actx,

View file

@ -46,6 +46,26 @@ type objectLinker struct {
Properties ObjectLinkerProperties Properties ObjectLinkerProperties
} }
type objectBazelHandler struct {
bazelHandler
module *Module
}
func (handler *objectBazelHandler) generateBazelBuildActions(ctx android.ModuleContext, label string) bool {
bazelCtx := ctx.Config().BazelContext
objPaths, ok := bazelCtx.GetCcObjectFiles(label, ctx.Arch().ArchType)
if ok {
if len(objPaths) != 1 {
ctx.ModuleErrorf("expected exactly one object file for '%s', but got %s", label, objPaths)
return false
}
handler.module.outputFile = android.OptionalPathForPath(android.PathForBazelOut(ctx, objPaths[0]))
}
return ok
}
type ObjectLinkerProperties struct { type ObjectLinkerProperties struct {
// list of modules that should only provide headers for this module. // list of modules that should only provide headers for this module.
Header_libs []string `android:"arch_variant,variant_prepend"` Header_libs []string `android:"arch_variant,variant_prepend"`
@ -80,6 +100,7 @@ func ObjectFactory() android.Module {
baseLinker: NewBaseLinker(module.sanitize), baseLinker: NewBaseLinker(module.sanitize),
} }
module.compiler = NewBaseCompiler() module.compiler = NewBaseCompiler()
module.bazelHandler = &objectBazelHandler{module: module}
// Clang's address-significance tables are incompatible with ld -r. // Clang's address-significance tables are incompatible with ld -r.
module.compiler.appendCflags([]string{"-fno-addrsig"}) module.compiler.appendCflags([]string{"-fno-addrsig"})

View file

@ -206,7 +206,7 @@ func toolDepsMutator(ctx android.BottomUpMutatorContext) {
// Returns true if information was available from Bazel, false if bazel invocation still needs to occur. // Returns true if information was available from Bazel, false if bazel invocation still needs to occur.
func (c *Module) generateBazelBuildActions(ctx android.ModuleContext, label string) bool { func (c *Module) generateBazelBuildActions(ctx android.ModuleContext, label string) bool {
bazelCtx := ctx.Config().BazelContext bazelCtx := ctx.Config().BazelContext
filePaths, ok := bazelCtx.GetAllFiles(label) filePaths, ok := bazelCtx.GetAllFiles(label, ctx.Arch().ArchType)
if ok { if ok {
var bazelOutputFiles android.Paths var bazelOutputFiles android.Paths
for _, bazelOutputFile := range filePaths { for _, bazelOutputFile := range filePaths {