Specify bootconfig property in vendor_boot.img
bootconfig is a path to the text file, created based on
`INTERNAL_BOOTCONFIG` and `INTERNAL_BOOTCONFIG_FILE`. This is done by
auto generating a newly introduced bootconfig module. The
output file of the genrule module is passed as a property to the
vendor_boot.img module.
Test: Inspect the content of the generated vendor-bootconfig.img file
Test: Inspect the ninja command of the autogen vendor_boot.img
Bug: 379945468
Change-Id: I9c693de681e6dad7399f80df05825cce9b0c1c22
diff --git a/filesystem/bootconfig.go b/filesystem/bootconfig.go
new file mode 100644
index 0000000..b125824
--- /dev/null
+++ b/filesystem/bootconfig.go
@@ -0,0 +1,80 @@
+// Copyright 2024 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package filesystem
+
+import (
+ "android/soong/android"
+ "strings"
+
+ "github.com/google/blueprint/proptools"
+)
+
+func init() {
+ android.RegisterModuleType("bootconfig", BootconfigModuleFactory)
+ pctx.Import("android/soong/android")
+}
+
+type bootconfigProperty struct {
+ // List of bootconfig parameters that will be written as a line separated list in the output
+ // file.
+ Boot_config []string
+ // Path to the file that contains the list of bootconfig parameters. This will be appended
+ // to the output file, after the entries in boot_config.
+ Boot_config_file *string `android:"path"`
+}
+
+type BootconfigModule struct {
+ android.ModuleBase
+
+ properties bootconfigProperty
+}
+
+// bootconfig module generates the `vendor-bootconfig.img` file, which lists the bootconfig
+// parameters and can be passed as a `--vendor_bootconfig` value in mkbootimg invocation.
+func BootconfigModuleFactory() android.Module {
+ module := &BootconfigModule{}
+ module.AddProperties(&module.properties)
+ android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+ return module
+}
+
+func (m *BootconfigModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+ bootConfig := m.properties.Boot_config
+ bootConfigFileStr := proptools.String(m.properties.Boot_config_file)
+ if len(bootConfig) == 0 && len(bootConfigFileStr) == 0 {
+ return
+ }
+
+ var bootConfigFile android.Path
+ if len(bootConfigFileStr) > 0 {
+ bootConfigFile = android.PathForModuleSrc(ctx, bootConfigFileStr)
+ }
+
+ outputPath := android.PathForModuleOut(ctx, ctx.ModuleName(), "vendor-bootconfig.img")
+ bootConfigOutput := android.PathForModuleOut(ctx, ctx.ModuleName(), "bootconfig.txt")
+ android.WriteFileRule(ctx, bootConfigOutput, strings.Join(bootConfig, "\n"))
+
+ bcFiles := android.Paths{bootConfigOutput}
+ if bootConfigFile != nil {
+ bcFiles = append(bcFiles, bootConfigFile)
+ }
+ ctx.Build(pctx, android.BuildParams{
+ Rule: android.Cat,
+ Description: "concatenate bootconfig parameters",
+ Inputs: bcFiles,
+ Output: outputPath,
+ })
+ ctx.SetOutputFiles(android.Paths{outputPath}, "")
+}