Add props property to add_avb_hash_footer
It is used to provide name:value properties to the footer. Value can be
from a text in *.bp file or a binary file referenced via the `file`
prop. e.g.
```
avb_add_hash_footer {
...
props: [
{
name: "string_prop",
value: "string_value",
},
{
name: "binary_prop",
file: "a_binary_file_name",
},
],
}
```
This CL also adds a test for the module type which has been missing.
Bug: 256148237
Test: m nothing
Change-Id: Idf55b308c8ce760387c01a847846b42d1aebe4ea
diff --git a/filesystem/avb_add_hash_footer.go b/filesystem/avb_add_hash_footer.go
index af3bdbe..1ee0edc 100644
--- a/filesystem/avb_add_hash_footer.go
+++ b/filesystem/avb_add_hash_footer.go
@@ -23,10 +23,6 @@
"android/soong/android"
)
-func init() {
- android.RegisterModuleType("avb_add_hash_footer", avbAddHashFooterFactory)
-}
-
type avbAddHashFooter struct {
android.ModuleBase
@@ -36,6 +32,17 @@
installDir android.InstallPath
}
+type avbProp struct {
+ // Name of a property
+ Name *string
+
+ // Value of a property. Can't be used together with `file`.
+ Value *string
+
+ // File from which the value of the prop is read from. Can't be used together with `value`.
+ File *string `android:"path,arch_variant"`
+}
+
type avbAddHashFooterProperties struct {
// Source file of this image. Can reference a genrule type module with the ":module" syntax.
Src *string `android:"path,arch_variant"`
@@ -57,6 +64,9 @@
// The salt in hex. Required for reproducible builds.
Salt *string
+
+ // List of properties to add to the footer
+ Props []avbProp
}
// The AVB footer adds verification information to the image.
@@ -106,6 +116,10 @@
}
cmd.FlagWithArg("--salt ", proptools.String(a.properties.Salt))
+ for _, prop := range a.properties.Props {
+ addAvbProp(ctx, cmd, prop)
+ }
+
cmd.FlagWithOutput("--image ", a.output)
builder.Build("avbAddHashFooter", fmt.Sprintf("avbAddHashFooter %s", ctx.ModuleName()))
@@ -114,6 +128,32 @@
ctx.InstallFile(a.installDir, a.installFileName(), a.output)
}
+func addAvbProp(ctx android.ModuleContext, cmd *android.RuleBuilderCommand, prop avbProp) {
+ name := proptools.String(prop.Name)
+ value := proptools.String(prop.Value)
+ file := proptools.String(prop.File)
+ if name == "" {
+ ctx.PropertyErrorf("name", "can't be empty")
+ return
+ }
+ if value == "" && file == "" {
+ ctx.PropertyErrorf("value", "either value or file should be set")
+ return
+ }
+ if value != "" && file != "" {
+ ctx.PropertyErrorf("value", "value and file can't be set at the same time")
+ return
+ }
+
+ if value != "" {
+ cmd.FlagWithArg("--prop ", proptools.ShellEscape(fmt.Sprintf("%s:%s", name, value)))
+ } else {
+ p := android.PathForModuleSrc(ctx, file)
+ cmd.Input(p)
+ cmd.FlagWithArg("--prop_from_file ", proptools.ShellEscape(fmt.Sprintf("%s:%s", name, cmd.PathForInput(p))))
+ }
+}
+
var _ android.AndroidMkEntriesProvider = (*avbAddHashFooter)(nil)
// Implements android.AndroidMkEntriesProvider