Add environment variables to cc_genrule commands
Pass the architecture, mulitlib type and native bridge state to
each variant of a cc_genrule rule as environment variables.
Bug: 200872604
Test: TestCmdPrefix
Change-Id: I39c4c2d5bbd4f4cc72a4777715db1df049345b37
diff --git a/cc/genrule.go b/cc/genrule.go
index 9df5228..239064f 100644
--- a/cc/genrule.go
+++ b/cc/genrule.go
@@ -15,6 +15,8 @@
package cc
import (
+ "fmt"
+
"android/soong/android"
"android/soong/genrule"
"android/soong/snapshot"
@@ -36,13 +38,23 @@
// cc_genrule is a genrule that can depend on other cc_* objects.
// The cmd may be run multiple times, once for each of the different arch/etc
-// variations.
+// variations. The following environment variables will be set when the command
+// execute:
+//
+// CC_ARCH the name of the architecture the command is being executed for
+//
+// CC_MULTILIB "lib32" if the architecture the command is being executed for is 32-bit,
+// "lib64" if it is 64-bit.
+//
+// CC_NATIVE_BRIDGE the name of the subdirectory that native bridge libraries are stored in if
+// the architecture has native bridge enabled, empty if it is disabled.
func GenRuleFactory() android.Module {
module := genrule.NewGenRule()
extra := &GenruleExtraProperties{}
module.Extra = extra
module.ImageInterface = extra
+ module.CmdModifier = genruleCmdModifier
module.AddProperties(module.Extra)
android.InitAndroidArchModule(module, android.HostAndDeviceSupported, android.MultilibBoth)
@@ -53,6 +65,13 @@
return module
}
+func genruleCmdModifier(ctx android.ModuleContext, cmd string) string {
+ target := ctx.Target()
+ arch := target.Arch.ArchType
+ return fmt.Sprintf("CC_ARCH=%s CC_NATIVE_BRIDGE=%s CC_MULTILIB=%s && %s",
+ arch.Name, target.NativeBridgeRelativePath, arch.Multilib, cmd)
+}
+
var _ android.ImageInterface = (*GenruleExtraProperties)(nil)
func (g *GenruleExtraProperties) ImageMutatorBegin(ctx android.BaseModuleContext) {}