Add cross-referencing support for Rust
Bug: 222044478
Test: run TARGET_BUILD_VARIANT=userdebug TARGET_PRODUCT=cf_x86_64_phone XREF_CORPUS=googleplex-android.googlesource.com/codesearch/android build/soong/build_kzip.bash
Change-Id: Ia12eed53fafd0cbbbf2cc499fa20a0f5a40031de
diff --git a/rust/builder.go b/rust/builder.go
index 20ca5db..7dd9dd2 100644
--- a/rust/builder.go
+++ b/rust/builder.go
@@ -83,10 +83,37 @@
RspfileContent: "$in",
},
"outDir")
+
+ // Cross-referencing:
+ _ = pctx.SourcePathVariable("rustExtractor",
+ "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/rust_extractor")
+ _ = pctx.VariableFunc("kytheCorpus",
+ func(ctx android.PackageVarContext) string { return ctx.Config().XrefCorpusName() })
+ _ = pctx.VariableFunc("kytheCuEncoding",
+ func(ctx android.PackageVarContext) string { return ctx.Config().XrefCuEncoding() })
+ _ = pctx.SourcePathVariable("kytheVnames", "build/soong/vnames.json")
+ kytheExtract = pctx.AndroidStaticRule("kythe",
+ blueprint.RuleParams{
+ Command: `KYTHE_CORPUS=${kytheCorpus} ` +
+ `KYTHE_OUTPUT_FILE=$out ` +
+ `KYTHE_VNAMES=$kytheVnames ` +
+ `KYTHE_KZIP_ENCODING=${kytheCuEncoding} ` +
+ `KYTHE_CANONICALIZE_VNAME_PATHS=prefer-relative ` +
+ `$rustExtractor $envVars ` +
+ `$rustcCmd ` +
+ `-C linker=${config.RustLinker} ` +
+ `-C link-args="${crtBegin} ${config.RustLinkerArgs} ${linkFlags} ${crtEnd}" ` +
+ `$in ${libFlags} $rustcFlags`,
+ CommandDeps: []string{"$rustExtractor", "$kytheVnames"},
+ Rspfile: "${out}.rsp",
+ RspfileContent: "$in",
+ },
+ "rustcFlags", "linkFlags", "libFlags", "crtBegin", "crtEnd", "envVars")
)
type buildOutput struct {
outputFile android.Path
+ kytheFile android.Path
}
func init() {
@@ -324,6 +351,25 @@
},
})
+ if flags.EmitXrefs {
+ kytheFile := android.PathForModuleOut(ctx, outputFile.Base()+".kzip")
+ ctx.Build(pctx, android.BuildParams{
+ Rule: kytheExtract,
+ Description: "Xref Rust extractor " + main.Rel(),
+ Output: kytheFile,
+ Inputs: inputs,
+ Implicits: implicits,
+ Args: map[string]string{
+ "rustcFlags": strings.Join(rustcFlags, " "),
+ "linkFlags": strings.Join(linkFlags, " "),
+ "libFlags": strings.Join(libFlags, " "),
+ "crtBegin": strings.Join(deps.CrtBegin.Strings(), " "),
+ "crtEnd": strings.Join(deps.CrtEnd.Strings(), " "),
+ "envVars": strings.Join(envVars, " "),
+ },
+ })
+ output.kytheFile = kytheFile
+ }
return output
}