// Copyright 2017 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cc
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import (
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"strings"
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"sync"
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"android/soong/android"
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"android/soong/cc/config"
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)
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var (
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lsdumpPaths []string
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sabiLock sync.Mutex
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)
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type SAbiProperties struct {
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CreateSAbiDumps bool `blueprint:"mutated"`
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ReexportedIncludeFlags []string
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}
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type sabi struct {
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Properties SAbiProperties
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}
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func (sabimod *sabi) props() []interface{} {
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return []interface{}{&sabimod.Properties}
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}
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func (sabimod *sabi) begin(ctx BaseModuleContext) {}
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func (sabimod *sabi) deps(ctx BaseModuleContext, deps Deps) Deps {
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return deps
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}
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func inListWithPrefixSearch(flag string, filter []string) bool {
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// Assuming the filter is small enough.
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// If the suffix of a filter element is *, try matching prefixes as well.
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for _, f := range filter {
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if (f == flag) || (strings.HasSuffix(f, "*") && strings.HasPrefix(flag, strings.TrimSuffix(f, "*"))) {
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return true
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}
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}
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return false
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}
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func filterOutWithPrefix(list []string, filter []string) (remainder []string) {
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// Go through the filter, matching and optionally doing a prefix search for list elements.
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for _, l := range list {
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if !inListWithPrefixSearch(l, filter) {
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remainder = append(remainder, l)
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}
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}
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return
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}
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func (sabimod *sabi) flags(ctx ModuleContext, flags Flags) Flags {
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// Assuming that the cflags which clang LibTooling tools cannot
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// understand have not been converted to ninja variables yet.
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flags.ToolingCFlags = filterOutWithPrefix(flags.CFlags, config.ClangLibToolingUnknownCflags)
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flags.ToolingCppFlags = filterOutWithPrefix(flags.CppFlags, config.ClangLibToolingUnknownCflags)
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return flags
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}
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func sabiDepsMutator(mctx android.TopDownMutatorContext) {
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if c, ok := mctx.Module().(*Module); ok &&
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((c.isVndk() && c.useVndk()) || inList(c.Name(), llndkLibraries) ||
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(c.sabi != nil && c.sabi.Properties.CreateSAbiDumps)) {
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mctx.VisitDirectDeps(func(m android.Module) {
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tag := mctx.OtherModuleDependencyTag(m)
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switch tag {
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case staticDepTag, staticExportDepTag, lateStaticDepTag, wholeStaticDepTag:
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cc, _ := m.(*Module)
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if cc == nil {
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return
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}
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cc.sabi.Properties.CreateSAbiDumps = true
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}
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})
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}
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}
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