cc/rust: Alias ffi rlib variant for static_libs
Alias the rlib variant to "link: static". This allows declaring
rust_ffi_rlib modules in static_libs. This effectively removes any
distinction between rust_ffi_static and rust_ffi_rlib. Removing the
functionality for building Rust staticlib modules will be cleaned up in
a follow-on CL.
This should have the effect of changing the default linkage for all rust
modules in static_libs from linking individual staticlibs to building a
single staticlib that includes all rust_ffi rlib dependencies.
This removes the static_rlibs property, as we're now handling
the choice dynamically. This also makes rlibs only propagate through
cc_library_static modules if the rlib is included in
whole_static_lib. This both mirrors the expected behavior of
cc libraries and helps control which version of a crate ends up in the
final link (e.g. libdoh_ffi vs libdoh_ffi_for_test).
Bug: 254469782
Test: m
Test: m blueprint_tests
Change-Id: I2925f67f6dc9329dae3dcccafb8560900ac8a6fc
diff --git a/rust/rust.go b/rust/rust.go
index 3a3ca4d..6b7b2fb 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -420,7 +420,7 @@
depFlags []string
depLinkFlags []string
- // linkDirs are link paths passed via -L to rustc. linkObjects are objects passed directly to the linker.
+ // linkDirs are link paths passed via -L to rustc. linkObjects are objects passed directly to the linker
// Both of these are exported and propagate to dependencies.
linkDirs []string
linkObjects []string
@@ -442,9 +442,6 @@
// Paths to generated source files
SrcDeps android.Paths
srcProviderFiles android.Paths
-
- // Used by Generated Libraries
- depExportedRlibs []cc.RustRlibDep
}
type RustLibraries []RustLibrary
@@ -465,6 +462,7 @@
type flagExporter struct {
linkDirs []string
+ ccLinkDirs []string
linkObjects []string
}
@@ -658,6 +656,24 @@
panic(fmt.Errorf("BuildStaticVariant called on non-library module: %q", mod.BaseModuleName()))
}
+func (mod *Module) BuildRlibVariant() bool {
+ if mod.compiler != nil {
+ if library, ok := mod.compiler.(libraryInterface); ok {
+ return library.buildRlib()
+ }
+ }
+ panic(fmt.Errorf("BuildRlibVariant called on non-library module: %q", mod.BaseModuleName()))
+}
+
+func (mod *Module) IsRustFFI() bool {
+ if mod.compiler != nil {
+ if library, ok := mod.compiler.(libraryInterface); ok {
+ return library.isFFILibrary()
+ }
+ }
+ return false
+}
+
func (mod *Module) BuildSharedVariant() bool {
if mod.compiler != nil {
if library, ok := mod.compiler.(libraryInterface); ok {
@@ -1237,7 +1253,6 @@
ctx.VisitDirectDeps(func(dep android.Module) {
depName := ctx.OtherModuleName(dep)
depTag := ctx.OtherModuleDependencyTag(dep)
-
if _, exists := skipModuleList[depName]; exists {
return
}
@@ -1250,8 +1265,8 @@
//Handle Rust Modules
makeLibName := rustMakeLibName(ctx, mod, rustDep, depName+rustDep.Properties.RustSubName)
- switch depTag {
- case dylibDepTag:
+ switch {
+ case depTag == dylibDepTag:
dylib, ok := rustDep.compiler.(libraryInterface)
if !ok || !dylib.dylib() {
ctx.ModuleErrorf("mod %q not an dylib library", depName)
@@ -1261,8 +1276,7 @@
mod.Properties.AndroidMkDylibs = append(mod.Properties.AndroidMkDylibs, makeLibName)
mod.Properties.SnapshotDylibs = append(mod.Properties.SnapshotDylibs, cc.BaseLibName(depName))
- case rlibDepTag:
-
+ case depTag == rlibDepTag:
rlib, ok := rustDep.compiler.(libraryInterface)
if !ok || !rlib.rlib() {
ctx.ModuleErrorf("mod %q not an rlib library", makeLibName)
@@ -1277,16 +1291,25 @@
depPaths.depIncludePaths = append(depPaths.depIncludePaths, exportedInfo.IncludeDirs...)
depPaths.exportedLinkDirs = append(depPaths.exportedLinkDirs, linkPathFromFilePath(rustDep.OutputFile().Path()))
- case procMacroDepTag:
+ case depTag == procMacroDepTag:
directProcMacroDeps = append(directProcMacroDeps, rustDep)
mod.Properties.AndroidMkProcMacroLibs = append(mod.Properties.AndroidMkProcMacroLibs, makeLibName)
// proc_macro link dirs need to be exported, so collect those here.
depPaths.exportedLinkDirs = append(depPaths.exportedLinkDirs, linkPathFromFilePath(rustDep.OutputFile().Path()))
- case sourceDepTag:
+ case depTag == sourceDepTag:
if _, ok := mod.sourceProvider.(*protobufDecorator); ok {
collectIncludedProtos(mod, rustDep)
}
+ case cc.IsStaticDepTag(depTag):
+ // Rust FFI rlibs should not be declared in a Rust modules
+ // "static_libs" list as we can't handle them properly at the
+ // moment (for example, they only produce an rlib-std variant).
+ // Instead, a normal rust_library variant should be used.
+ ctx.PropertyErrorf("static_libs",
+ "found '%s' in static_libs; use a rust_library module in rustlibs instead of a rust_ffi module in static_libs",
+ depName)
+
}
transitiveAndroidMkSharedLibs = append(transitiveAndroidMkSharedLibs, rustDep.transitiveAndroidMkSharedLibs)