platform_build_soong/cc/sabi.go

98 lines
2.8 KiB
Go

// Copyright 2017 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"
"github.com/google/blueprint"
"android/soong/android"
"android/soong/cc/config"
)
type SAbiProperties struct {
CreateSAbiDumps bool `blueprint:"mutated"`
ReexportedIncludeFlags []string
}
type sabi struct {
Properties SAbiProperties
}
func (sabimod *sabi) props() []interface{} {
return []interface{}{&sabimod.Properties}
}
func (sabimod *sabi) begin(ctx BaseModuleContext) {}
func (sabimod *sabi) deps(ctx BaseModuleContext, deps Deps) Deps {
return deps
}
func inListWithPrefixSearch(flag string, filter []string) bool {
// Assuming the filter is small enough.
// If the suffix of a filter element is *, try matching prefixes as well.
for _, f := range filter {
if (f == flag) || (strings.HasSuffix(f, "*") && strings.HasPrefix(flag, strings.TrimSuffix(f, "*"))) {
return true
}
}
return false
}
func filterOutWithPrefix(list []string, filter []string) (remainder []string) {
// Go through the filter, matching and optionally doing a prefix search for list elements.
for _, l := range list {
if !inListWithPrefixSearch(l, filter) {
remainder = append(remainder, l)
}
}
return
}
func (sabimod *sabi) flags(ctx ModuleContext, flags Flags) Flags {
// Assuming that the cflags which clang LibTooling tools cannot
// understand have not been converted to ninja variables yet.
flags.ToolingCFlags = filterOutWithPrefix(flags.CFlags, config.ClangLibToolingUnknownCflags)
// RSClang does not support recent mcpu option likes exynos-m2.
// So we need overriding mcpu option when we want to use it.
if ctx.Arch().CpuVariant == "exynos-m2" {
flags.ToolingCFlags = append(flags.ToolingCFlags, "-mcpu=cortex-a53")
}
return flags
}
func sabiDepsMutator(mctx android.TopDownMutatorContext) {
if c, ok := mctx.Module().(*Module); ok &&
((c.isVndk() && c.vndk()) || inList(c.Name(), llndkLibraries) ||
(c.sabi != nil && c.sabi.Properties.CreateSAbiDumps)) {
mctx.VisitDirectDeps(func(m blueprint.Module) {
tag := mctx.OtherModuleDependencyTag(m)
switch tag {
case staticDepTag, staticExportDepTag, lateStaticDepTag, wholeStaticDepTag:
cc, _ := m.(*Module)
if cc == nil {
return
}
cc.sabi.Properties.CreateSAbiDumps = true
}
})
}
}