[rust] Pass cc dependencies as linker flags.
In order to support cc dependencies which do not start with the 'lib'
prefix, we can't pass them through the -l flag. Instead, we can pass
them directly to linker flags.
Bug: 166151658
Test: cd external/rust/; mma
Test: cd external/crosvm/; mma
Test: Test linking to a cc dep that does not begin with 'lib'
Change-Id: I5acbf3d3405e66446f3eae600b35683c4eb3d8a5
diff --git a/rust/rust.go b/rust/rust.go
index b697869..8dffb43 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -244,13 +244,14 @@
}
type PathDeps struct {
- DyLibs RustLibraries
- RLibs RustLibraries
- SharedLibs android.Paths
- StaticLibs android.Paths
- ProcMacros RustLibraries
- linkDirs []string
- depFlags []string
+ DyLibs RustLibraries
+ RLibs RustLibraries
+ SharedLibs android.Paths
+ StaticLibs android.Paths
+ ProcMacros RustLibraries
+ linkDirs []string
+ depFlags []string
+ linkObjects []string
//ReexportedDeps android.Paths
// Used by bindgen modules which call clang
@@ -294,13 +295,16 @@
type exportedFlagsProducer interface {
exportedLinkDirs() []string
exportedDepFlags() []string
+ exportedLinkObjects() []string
exportLinkDirs(...string)
exportDepFlags(...string)
+ exportLinkObjects(...string)
}
type flagExporter struct {
- depFlags []string
- linkDirs []string
+ depFlags []string
+ linkDirs []string
+ linkObjects []string
}
func (flagExporter *flagExporter) exportedLinkDirs() []string {
@@ -311,6 +315,10 @@
return flagExporter.depFlags
}
+func (flagExporter *flagExporter) exportedLinkObjects() []string {
+ return flagExporter.linkObjects
+}
+
func (flagExporter *flagExporter) exportLinkDirs(dirs ...string) {
flagExporter.linkDirs = android.FirstUniqueStrings(append(flagExporter.linkDirs, dirs...))
}
@@ -319,12 +327,17 @@
flagExporter.depFlags = android.FirstUniqueStrings(append(flagExporter.depFlags, flags...))
}
+func (flagExporter *flagExporter) exportLinkObjects(flags ...string) {
+ flagExporter.linkObjects = android.FirstUniqueStrings(append(flagExporter.linkObjects, flags...))
+}
+
var _ exportedFlagsProducer = (*flagExporter)(nil)
func NewFlagExporter() *flagExporter {
return &flagExporter{
- depFlags: []string{},
- linkDirs: []string{},
+ depFlags: []string{},
+ linkDirs: []string{},
+ linkObjects: []string{},
}
}
@@ -811,6 +824,7 @@
if lib, ok := rustDep.compiler.(exportedFlagsProducer); ok && depTag != procMacroDepTag {
depPaths.linkDirs = append(depPaths.linkDirs, lib.exportedLinkDirs()...)
depPaths.depFlags = append(depPaths.depFlags, lib.exportedDepFlags()...)
+ depPaths.linkObjects = append(depPaths.linkObjects, lib.exportedLinkObjects()...)
}
if depTag == dylibDepTag || depTag == rlibDepTag || depTag == procMacroDepTag {
@@ -838,21 +852,18 @@
return
}
}
- linkFile := ccDep.OutputFile()
- linkPath := linkPathFromFilePath(linkFile.Path())
- libName := libNameFromFilePath(linkFile.Path())
- depFlag := "-l" + libName
+ linkObject := ccDep.OutputFile()
+ linkPath := linkPathFromFilePath(linkObject.Path())
- if !linkFile.Valid() {
+ if !linkObject.Valid() {
ctx.ModuleErrorf("Invalid output file when adding dep %q to %q", depName, ctx.ModuleName())
}
exportDep := false
switch {
case cc.IsStaticDepTag(depTag):
- depFlag = "-lstatic=" + libName
depPaths.linkDirs = append(depPaths.linkDirs, linkPath)
- depPaths.depFlags = append(depPaths.depFlags, depFlag)
+ depPaths.linkObjects = append(depPaths.linkObjects, linkObject.String())
depPaths.depIncludePaths = append(depPaths.depIncludePaths, ccDep.IncludeDirs()...)
if mod, ok := ccDep.(*cc.Module); ok {
depPaths.depSystemIncludePaths = append(depPaths.depSystemIncludePaths, mod.ExportedSystemIncludeDirs()...)
@@ -862,9 +873,8 @@
directStaticLibDeps = append(directStaticLibDeps, ccDep)
mod.Properties.AndroidMkStaticLibs = append(mod.Properties.AndroidMkStaticLibs, depName)
case cc.IsSharedDepTag(depTag):
- depFlag = "-ldylib=" + libName
depPaths.linkDirs = append(depPaths.linkDirs, linkPath)
- depPaths.depFlags = append(depPaths.depFlags, depFlag)
+ depPaths.linkObjects = append(depPaths.linkObjects, linkObject.String())
depPaths.depIncludePaths = append(depPaths.depIncludePaths, ccDep.IncludeDirs()...)
if mod, ok := ccDep.(*cc.Module); ok {
depPaths.depSystemIncludePaths = append(depPaths.depSystemIncludePaths, mod.ExportedSystemIncludeDirs()...)
@@ -874,15 +884,15 @@
mod.Properties.AndroidMkSharedLibs = append(mod.Properties.AndroidMkSharedLibs, depName)
exportDep = true
case depTag == cc.CrtBeginDepTag:
- depPaths.CrtBegin = linkFile
+ depPaths.CrtBegin = linkObject
case depTag == cc.CrtEndDepTag:
- depPaths.CrtEnd = linkFile
+ depPaths.CrtEnd = linkObject
}
// Make sure these dependencies are propagated
if lib, ok := mod.compiler.(exportedFlagsProducer); ok && exportDep {
lib.exportLinkDirs(linkPath)
- lib.exportDepFlags(depFlag)
+ lib.exportLinkObjects(linkObject.String())
}
}
@@ -956,14 +966,6 @@
return strings.Split(filepath.String(), filepath.Base())[0]
}
-func libNameFromFilePath(filepath android.Path) string {
- libName := strings.TrimSuffix(filepath.Base(), filepath.Ext())
- if strings.HasPrefix(libName, "lib") {
- libName = libName[3:]
- }
- return libName
-}
-
func (mod *Module) DepsMutator(actx android.BottomUpMutatorContext) {
ctx := &depsContext{
BottomUpMutatorContext: actx,