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- // Copyright 2016 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 cc
- import (
- "strings"
- "android/soong/android"
- )
- // StripProperties defines the type of stripping applied to the module.
- type StripProperties struct {
- Strip struct {
- // none forces all stripping to be disabled.
- // Device modules default to stripping enabled leaving mini debuginfo.
- // Host modules default to stripping disabled, but can be enabled by setting any other
- // strip boolean property.
- None *bool `android:"arch_variant"`
- // all forces stripping everything, including the mini debug info.
- All *bool `android:"arch_variant"`
- // keep_symbols enables stripping but keeps all symbols.
- Keep_symbols *bool `android:"arch_variant"`
- // keep_symbols_list specifies a list of symbols to keep if keep_symbols is enabled.
- // If it is unset then all symbols are kept.
- Keep_symbols_list []string `android:"arch_variant"`
- // keep_symbols_and_debug_frame enables stripping but keeps all symbols and debug frames.
- Keep_symbols_and_debug_frame *bool `android:"arch_variant"`
- } `android:"arch_variant"`
- }
- // Stripper defines the stripping actions and properties for a module.
- type Stripper struct {
- StripProperties StripProperties
- }
- // NeedsStrip determines if stripping is required for a module.
- func (stripper *Stripper) NeedsStrip(actx android.ModuleContext) bool {
- forceDisable := Bool(stripper.StripProperties.Strip.None)
- defaultEnable := (!actx.Config().KatiEnabled() || actx.Device())
- forceEnable := Bool(stripper.StripProperties.Strip.All) ||
- Bool(stripper.StripProperties.Strip.Keep_symbols) ||
- Bool(stripper.StripProperties.Strip.Keep_symbols_and_debug_frame)
- return !forceDisable && (forceEnable || defaultEnable)
- }
- // Keep this consistent with //build/bazel/rules/stripped_shared_library.bzl.
- func (stripper *Stripper) strip(actx android.ModuleContext, in android.Path, out android.ModuleOutPath,
- flags StripFlags, isStaticLib bool) {
- if actx.Darwin() {
- transformDarwinStrip(actx, in, out)
- } else {
- if Bool(stripper.StripProperties.Strip.Keep_symbols) {
- flags.StripKeepSymbols = true
- } else if Bool(stripper.StripProperties.Strip.Keep_symbols_and_debug_frame) {
- flags.StripKeepSymbolsAndDebugFrame = true
- } else if len(stripper.StripProperties.Strip.Keep_symbols_list) > 0 {
- flags.StripKeepSymbolsList = strings.Join(stripper.StripProperties.Strip.Keep_symbols_list, ",")
- } else if !Bool(stripper.StripProperties.Strip.All) {
- flags.StripKeepMiniDebugInfo = true
- }
- if actx.Config().Debuggable() && !flags.StripKeepMiniDebugInfo && !isStaticLib {
- flags.StripAddGnuDebuglink = true
- }
- transformStrip(actx, in, out, flags)
- }
- }
- // StripExecutableOrSharedLib strips a binary or shared library from its debug
- // symbols and other debugging information. The helper function
- // flagsToStripFlags may be used to generate the flags argument.
- func (stripper *Stripper) StripExecutableOrSharedLib(actx android.ModuleContext, in android.Path,
- out android.ModuleOutPath, flags StripFlags) {
- stripper.strip(actx, in, out, flags, false)
- }
- // StripStaticLib strips a static library from its debug symbols and other
- // debugging information. The helper function flagsToStripFlags may be used to
- // generate the flags argument.
- func (stripper *Stripper) StripStaticLib(actx android.ModuleContext, in android.Path, out android.ModuleOutPath,
- flags StripFlags) {
- stripper.strip(actx, in, out, flags, true)
- }
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