bp2build: support full/lite protos in cc libs
Test: bp2build.sh
Bug: 200601772
Change-Id: I3a7e00546726bc63b5eb8d5604557c5988a5320b
diff --git a/cc/bp2build.go b/cc/bp2build.go
index 888c3ba..f9bbe87 100644
--- a/cc/bp2build.go
+++ b/cc/bp2build.go
@@ -27,9 +27,10 @@
)
const (
- cSrcPartition = "c"
- asSrcPartition = "as"
- cppSrcPartition = "cpp"
+ cSrcPartition = "c"
+ asSrcPartition = "as"
+ cppSrcPartition = "cpp"
+ protoSrcPartition = "proto"
)
// staticOrSharedAttributes are the Bazel-ified versions of StaticOrSharedProperties --
@@ -41,52 +42,53 @@
Hdrs bazel.LabelListAttribute
Copts bazel.StringListAttribute
- Deps bazel.LabelListAttribute
- Implementation_deps bazel.LabelListAttribute
- Dynamic_deps bazel.LabelListAttribute
- Implementation_dynamic_deps bazel.LabelListAttribute
- Whole_archive_deps bazel.LabelListAttribute
+ Deps bazel.LabelListAttribute
+ Implementation_deps bazel.LabelListAttribute
+ Dynamic_deps bazel.LabelListAttribute
+ Implementation_dynamic_deps bazel.LabelListAttribute
+ Whole_archive_deps bazel.LabelListAttribute
+ Implementation_whole_archive_deps bazel.LabelListAttribute
System_dynamic_deps bazel.LabelListAttribute
}
func groupSrcsByExtension(ctx android.BazelConversionPathContext, srcs bazel.LabelListAttribute) bazel.PartitionToLabelListAttribute {
- // Check that a module is a filegroup type named <label>.
- isFilegroupNamed := func(m android.Module, fullLabel string) bool {
- if ctx.OtherModuleType(m) != "filegroup" {
- return false
- }
- labelParts := strings.Split(fullLabel, ":")
- if len(labelParts) > 2 {
- // There should not be more than one colon in a label.
- ctx.ModuleErrorf("%s is not a valid Bazel label for a filegroup", fullLabel)
- }
- return m.Name() == labelParts[len(labelParts)-1]
+ // Check that a module is a filegroup type
+ isFilegroup := func(m blueprint.Module) bool {
+ return ctx.OtherModuleType(m) == "filegroup"
}
// Convert filegroup dependencies into extension-specific filegroups filtered in the filegroup.bzl
// macro.
addSuffixForFilegroup := func(suffix string) bazel.LabelMapper {
- return func(ctx bazel.OtherModuleContext, label string) (string, bool) {
- m, exists := ctx.ModuleFromName(label)
- if !exists {
- return label, false
+ return func(ctx bazel.OtherModuleContext, label bazel.Label) (string, bool) {
+ m, exists := ctx.ModuleFromName(label.OriginalModuleName)
+ labelStr := label.Label
+ if !exists || !isFilegroup(m) {
+ return labelStr, false
}
- aModule, _ := m.(android.Module)
- if !isFilegroupNamed(aModule, label) {
- return label, false
- }
- return label + suffix, true
+ return labelStr + suffix, true
}
}
+ isProtoFilegroup := func(ctx bazel.OtherModuleContext, label bazel.Label) (string, bool) {
+ m, exists := ctx.ModuleFromName(label.OriginalModuleName)
+ labelStr := label.Label
+ if !exists || !isFilegroup(m) {
+ return labelStr, false
+ }
+ likelyProtos := strings.HasSuffix(labelStr, "proto") || strings.HasSuffix(labelStr, "protos")
+ return labelStr, likelyProtos
+ }
+
// TODO(b/190006308): Handle language detection of sources in a Bazel rule.
partitioned := bazel.PartitionLabelListAttribute(ctx, &srcs, bazel.LabelPartitions{
cSrcPartition: bazel.LabelPartition{Extensions: []string{".c"}, LabelMapper: addSuffixForFilegroup("_c_srcs")},
asSrcPartition: bazel.LabelPartition{Extensions: []string{".s", ".S"}, LabelMapper: addSuffixForFilegroup("_as_srcs")},
// C++ is the "catch-all" group, and comprises generated sources because we don't
// know the language of these sources until the genrule is executed.
- cppSrcPartition: bazel.LabelPartition{Extensions: []string{".cpp", ".cc", ".cxx", ".mm"}, LabelMapper: addSuffixForFilegroup("_cpp_srcs"), Keep_remainder: true},
+ cppSrcPartition: bazel.LabelPartition{Extensions: []string{".cpp", ".cc", ".cxx", ".mm"}, LabelMapper: addSuffixForFilegroup("_cpp_srcs"), Keep_remainder: true},
+ protoSrcPartition: bazel.LabelPartition{Extensions: []string{".proto"}, LabelMapper: isProtoFilegroup},
})
return partitioned
@@ -195,6 +197,11 @@
attrs.Srcs_c = partitionedSrcs[cSrcPartition]
attrs.Srcs_as = partitionedSrcs[asSrcPartition]
+ if !partitionedSrcs[protoSrcPartition].IsEmpty() {
+ // TODO(b/208815215): determine whether this is used and add support if necessary
+ ctx.ModuleErrorf("Migrating static/shared only proto srcs is not currently supported")
+ }
+
return attrs
}
@@ -230,6 +237,8 @@
type baseAttributes struct {
compilerAttributes
linkerAttributes
+
+ protoDependency *bazel.LabelAttribute
}
// Convenience struct to hold all attributes parsed from compiler properties.
@@ -257,6 +266,8 @@
localIncludes bazel.StringListAttribute
absoluteIncludes bazel.StringListAttribute
+
+ protoSrcs bazel.LabelListAttribute
}
func parseCommandLineFlags(soongFlags []string) []string {
@@ -337,6 +348,8 @@
ca.srcs.ResolveExcludes()
partitionedSrcs := groupSrcsByExtension(ctx, ca.srcs)
+ ca.protoSrcs = partitionedSrcs[protoSrcPartition]
+
for p, lla := range partitionedSrcs {
// if there are no sources, there is no need for headers
if lla.IsEmpty() {
@@ -400,7 +413,7 @@
}
// bp2BuildParseCompilerProps returns copts, srcs and hdrs and other attributes.
-func bp2BuildParseBaseProps(ctx android.BazelConversionPathContext, module *Module) baseAttributes {
+func bp2BuildParseBaseProps(ctx android.Bp2buildMutatorContext, module *Module) baseAttributes {
archVariantCompilerProps := module.GetArchVariantProperties(ctx, &BaseCompilerProperties{})
archVariantLinkerProps := module.GetArchVariantProperties(ctx, &BaseLinkerProperties{})
@@ -456,20 +469,30 @@
(&compilerAttrs).finalize(ctx, implementationHdrs)
(&linkerAttrs).finalize()
+ protoDep := bp2buildProto(ctx, module, compilerAttrs.protoSrcs)
+
+ // bp2buildProto will only set wholeStaticLib or implementationWholeStaticLib, but we don't know
+ // which. This will add the newly generated proto library to the appropriate attribute and nothing
+ // to the other
+ (&linkerAttrs).wholeArchiveDeps.Add(protoDep.wholeStaticLib)
+ (&linkerAttrs).implementationWholeArchiveDeps.Add(protoDep.implementationWholeStaticLib)
+
return baseAttributes{
compilerAttrs,
linkerAttrs,
+ protoDep.protoDep,
}
}
// Convenience struct to hold all attributes parsed from linker properties.
type linkerAttributes struct {
- deps bazel.LabelListAttribute
- implementationDeps bazel.LabelListAttribute
- dynamicDeps bazel.LabelListAttribute
- implementationDynamicDeps bazel.LabelListAttribute
- wholeArchiveDeps bazel.LabelListAttribute
- systemDynamicDeps bazel.LabelListAttribute
+ deps bazel.LabelListAttribute
+ implementationDeps bazel.LabelListAttribute
+ dynamicDeps bazel.LabelListAttribute
+ implementationDynamicDeps bazel.LabelListAttribute
+ wholeArchiveDeps bazel.LabelListAttribute
+ implementationWholeArchiveDeps bazel.LabelListAttribute
+ systemDynamicDeps bazel.LabelListAttribute
linkCrt bazel.BoolAttribute
useLibcrt bazel.BoolAttribute