fa0e27a1f3
* This reduces size of output file wall_werror.txt. * Stop collecting SOONG_MODULES_ADDED_WERROR. Bug: 66996870 Test: normal build Change-Id: Ic6d87f6ee2b36b90ad0de4ac4f6f176334aba55e
563 lines
19 KiB
Go
563 lines
19 KiB
Go
// Copyright 2016 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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"fmt"
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"path/filepath"
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"strings"
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"github.com/google/blueprint/proptools"
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"android/soong/android"
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"android/soong/cc/config"
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)
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// This file contains the basic C/C++/assembly to .o compliation steps
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type BaseCompilerProperties struct {
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// list of source files used to compile the C/C++ module. May be .c, .cpp, or .S files.
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// srcs may reference the outputs of other modules that produce source files like genrule
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// or filegroup using the syntax ":module".
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Srcs []string `android:"arch_variant"`
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// list of source files that should not be used to build the C/C++ module.
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// This is most useful in the arch/multilib variants to remove non-common files
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Exclude_srcs []string `android:"arch_variant"`
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// list of module-specific flags that will be used for C and C++ compiles.
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Cflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for C++ compiles
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Cppflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for C compiles
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Conlyflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for .S compiles
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Asflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for C and C++ compiles when
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// compiling with clang
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Clang_cflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for .S compiles when
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// compiling with clang
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Clang_asflags []string `android:"arch_variant"`
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// list of module-specific flags that will be used for .y and .yy compiles
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Yaccflags []string
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// the instruction set architecture to use to compile the C/C++
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// module.
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Instruction_set *string `android:"arch_variant"`
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// list of directories relative to the root of the source tree that will
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// be added to the include path using -I.
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// If possible, don't use this. If adding paths from the current directory use
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// local_include_dirs, if adding paths from other modules use export_include_dirs in
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// that module.
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Include_dirs []string `android:"arch_variant,variant_prepend"`
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// list of directories relative to the Blueprints file that will
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// be added to the include path using -I
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Local_include_dirs []string `android:"arch_variant,variant_prepend",`
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// list of generated sources to compile. These are the names of gensrcs or
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// genrule modules.
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Generated_sources []string `android:"arch_variant"`
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// list of generated headers to add to the include path. These are the names
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// of genrule modules.
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Generated_headers []string `android:"arch_variant"`
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// pass -frtti instead of -fno-rtti
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Rtti *bool
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// C standard version to use. Can be a specific version (such as "gnu11"),
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// "experimental" (which will use draft versions like C1x when available),
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// or the empty string (which will use the default).
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C_std *string
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// C++ standard version to use. Can be a specific version (such as
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// "gnu++11"), "experimental" (which will use draft versions like C++1z when
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// available), or the empty string (which will use the default).
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Cpp_std *string
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// if set to false, use -std=c++* instead of -std=gnu++*
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Gnu_extensions *bool
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Aidl struct {
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// list of directories that will be added to the aidl include paths.
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Include_dirs []string
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// list of directories relative to the Blueprints file that will
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// be added to the aidl include paths.
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Local_include_dirs []string
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}
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Renderscript struct {
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// list of directories that will be added to the llvm-rs-cc include paths
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Include_dirs []string
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// list of flags that will be passed to llvm-rs-cc
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Flags []string
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// Renderscript API level to target
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Target_api *string
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}
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Debug, Release struct {
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// list of module-specific flags that will be used for C and C++ compiles in debug or
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// release builds
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Cflags []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Target struct {
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Vendor struct {
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// list of source files that should only be used in the
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// vendor variant of the C/C++ module.
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Srcs []string
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// list of source files that should not be used to
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// build the vendor variant of the C/C++ module.
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Exclude_srcs []string
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// List of additional cflags that should be used to build the vendor
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// variant of the C/C++ module.
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Cflags []string
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}
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}
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Proto struct {
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// Link statically against the protobuf runtime
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Static *bool `android:"arch_variant"`
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} `android:"arch_variant"`
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// Stores the original list of source files before being cleared by library reuse
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OriginalSrcs []string `blueprint:"mutated"`
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}
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func NewBaseCompiler() *baseCompiler {
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return &baseCompiler{}
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}
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type baseCompiler struct {
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Properties BaseCompilerProperties
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Proto android.ProtoProperties
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deps android.Paths
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flags builderFlags
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// Sources that were passed to the C/C++ compiler
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srcs android.Paths
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// Sources that were passed in the Android.bp file, including generated sources generated by
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// other modules and filegroups. May include source files that have not yet been translated to
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// C/C++ (.aidl, .proto, etc.)
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srcsBeforeGen android.Paths
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}
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var _ compiler = (*baseCompiler)(nil)
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type CompiledInterface interface {
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Srcs() android.Paths
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}
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func (compiler *baseCompiler) Srcs() android.Paths {
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return compiler.srcs
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}
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func (compiler *baseCompiler) appendCflags(flags []string) {
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compiler.Properties.Cflags = append(compiler.Properties.Cflags, flags...)
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}
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func (compiler *baseCompiler) appendAsflags(flags []string) {
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compiler.Properties.Asflags = append(compiler.Properties.Asflags, flags...)
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}
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func (compiler *baseCompiler) compilerProps() []interface{} {
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return []interface{}{&compiler.Properties, &compiler.Proto}
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}
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func (compiler *baseCompiler) compilerInit(ctx BaseModuleContext) {}
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func (compiler *baseCompiler) compilerDeps(ctx DepsContext, deps Deps) Deps {
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deps.GeneratedSources = append(deps.GeneratedSources, compiler.Properties.Generated_sources...)
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deps.GeneratedHeaders = append(deps.GeneratedHeaders, compiler.Properties.Generated_headers...)
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android.ExtractSourcesDeps(ctx, compiler.Properties.Srcs)
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if compiler.hasSrcExt(".proto") {
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deps = protoDeps(ctx, deps, &compiler.Proto, Bool(compiler.Properties.Proto.Static))
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}
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return deps
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}
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// Return true if the module is in the WarningAllowedProjects.
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func warningsAreAllowed(subdir string) bool {
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subdir += "/"
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for _, prefix := range config.WarningAllowedProjects {
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if strings.HasPrefix(subdir, prefix) {
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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 addToModuleList(ctx ModuleContext, list string, module string) {
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getWallWerrorMap(ctx.Config(), list).Store(module, true)
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}
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// Create a Flags struct that collects the compile flags from global values,
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// per-target values, module type values, and per-module Blueprints properties
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func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags {
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tc := ctx.toolchain()
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compiler.srcsBeforeGen = ctx.ExpandSources(compiler.Properties.Srcs, compiler.Properties.Exclude_srcs)
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compiler.srcsBeforeGen = append(compiler.srcsBeforeGen, deps.GeneratedSources...)
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CheckBadCompilerFlags(ctx, "cflags", compiler.Properties.Cflags)
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CheckBadCompilerFlags(ctx, "cppflags", compiler.Properties.Cppflags)
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CheckBadCompilerFlags(ctx, "conlyflags", compiler.Properties.Conlyflags)
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CheckBadCompilerFlags(ctx, "asflags", compiler.Properties.Asflags)
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esc := proptools.NinjaAndShellEscape
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flags.CFlags = append(flags.CFlags, esc(compiler.Properties.Cflags)...)
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flags.CppFlags = append(flags.CppFlags, esc(compiler.Properties.Cppflags)...)
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flags.ConlyFlags = append(flags.ConlyFlags, esc(compiler.Properties.Conlyflags)...)
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flags.AsFlags = append(flags.AsFlags, esc(compiler.Properties.Asflags)...)
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flags.YasmFlags = append(flags.YasmFlags, esc(compiler.Properties.Asflags)...)
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flags.YaccFlags = append(flags.YaccFlags, esc(compiler.Properties.Yaccflags)...)
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// Include dir cflags
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localIncludeDirs := android.PathsForModuleSrc(ctx, compiler.Properties.Local_include_dirs)
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if len(localIncludeDirs) > 0 {
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f := includeDirsToFlags(localIncludeDirs)
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flags.GlobalFlags = append(flags.GlobalFlags, f)
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flags.YasmFlags = append(flags.YasmFlags, f)
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}
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rootIncludeDirs := android.PathsForSource(ctx, compiler.Properties.Include_dirs)
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if len(rootIncludeDirs) > 0 {
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f := includeDirsToFlags(rootIncludeDirs)
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flags.GlobalFlags = append(flags.GlobalFlags, f)
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flags.YasmFlags = append(flags.YasmFlags, f)
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}
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flags.GlobalFlags = append(flags.GlobalFlags, "-I"+android.PathForModuleSrc(ctx).String())
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flags.YasmFlags = append(flags.YasmFlags, "-I"+android.PathForModuleSrc(ctx).String())
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if !(ctx.useSdk() || ctx.useVndk()) || ctx.Host() {
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flags.SystemIncludeFlags = append(flags.SystemIncludeFlags,
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"${config.CommonGlobalIncludes}",
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tc.IncludeFlags(),
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"${config.CommonNativehelperInclude}")
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}
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if ctx.useSdk() {
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// The NDK headers are installed to a common sysroot. While a more
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// typical Soong approach would be to only make the headers for the
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// library you're using available, we're trying to emulate the NDK
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// behavior here, and the NDK always has all the NDK headers available.
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flags.SystemIncludeFlags = append(flags.SystemIncludeFlags,
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"-isystem "+getCurrentIncludePath(ctx).String(),
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"-isystem "+getCurrentIncludePath(ctx).Join(ctx, tc.ClangTriple()).String())
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// Traditionally this has come from android/api-level.h, but with the
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// libc headers unified it must be set by the build system since we
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// don't have per-API level copies of that header now.
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version := ctx.sdkVersion()
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if version == "current" {
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version = "__ANDROID_API_FUTURE__"
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}
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flags.GlobalFlags = append(flags.GlobalFlags,
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"-D__ANDROID_API__="+version)
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// Until the full NDK has been migrated to using ndk_headers, we still
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// need to add the legacy sysroot includes to get the full set of
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// headers.
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legacyIncludes := fmt.Sprintf(
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"prebuilts/ndk/current/platforms/android-%s/arch-%s/usr/include",
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ctx.sdkVersion(), ctx.Arch().ArchType.String())
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flags.SystemIncludeFlags = append(flags.SystemIncludeFlags, "-isystem "+legacyIncludes)
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}
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if ctx.useVndk() {
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flags.GlobalFlags = append(flags.GlobalFlags,
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"-D__ANDROID_API__=__ANDROID_API_FUTURE__", "-D__ANDROID_VNDK__")
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}
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instructionSet := String(compiler.Properties.Instruction_set)
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if flags.RequiredInstructionSet != "" {
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instructionSet = flags.RequiredInstructionSet
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}
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instructionSetFlags, err := tc.InstructionSetFlags(instructionSet)
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if flags.Clang {
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instructionSetFlags, err = tc.ClangInstructionSetFlags(instructionSet)
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}
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if err != nil {
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ctx.ModuleErrorf("%s", err)
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}
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CheckBadCompilerFlags(ctx, "release.cflags", compiler.Properties.Release.Cflags)
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// TODO: debug
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flags.CFlags = append(flags.CFlags, esc(compiler.Properties.Release.Cflags)...)
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if flags.Clang {
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CheckBadCompilerFlags(ctx, "clang_cflags", compiler.Properties.Clang_cflags)
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CheckBadCompilerFlags(ctx, "clang_asflags", compiler.Properties.Clang_asflags)
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flags.CFlags = config.ClangFilterUnknownCflags(flags.CFlags)
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flags.CFlags = append(flags.CFlags, esc(compiler.Properties.Clang_cflags)...)
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flags.AsFlags = append(flags.AsFlags, esc(compiler.Properties.Clang_asflags)...)
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flags.CppFlags = config.ClangFilterUnknownCflags(flags.CppFlags)
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flags.ConlyFlags = config.ClangFilterUnknownCflags(flags.ConlyFlags)
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flags.LdFlags = config.ClangFilterUnknownCflags(flags.LdFlags)
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target := "-target " + tc.ClangTriple()
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gccPrefix := "-B" + config.ToolPath(tc)
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flags.CFlags = append(flags.CFlags, target, gccPrefix)
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flags.AsFlags = append(flags.AsFlags, target, gccPrefix)
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flags.LdFlags = append(flags.LdFlags, target, gccPrefix)
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}
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hod := "Host"
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if ctx.Os().Class == android.Device {
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hod = "Device"
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}
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flags.GlobalFlags = append(flags.GlobalFlags, instructionSetFlags)
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flags.ConlyFlags = append([]string{"${config.CommonGlobalConlyflags}"}, flags.ConlyFlags...)
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flags.CppFlags = append([]string{fmt.Sprintf("${config.%sGlobalCppflags}", hod)}, flags.CppFlags...)
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if flags.Clang {
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flags.AsFlags = append(flags.AsFlags, tc.ClangAsflags())
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flags.CppFlags = append([]string{"${config.CommonClangGlobalCppflags}"}, flags.CppFlags...)
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flags.GlobalFlags = append(flags.GlobalFlags,
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tc.ClangCflags(),
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"${config.CommonClangGlobalCflags}",
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fmt.Sprintf("${config.%sClangGlobalCflags}", hod))
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} else {
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flags.CppFlags = append([]string{"${config.CommonGlobalCppflags}"}, flags.CppFlags...)
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flags.GlobalFlags = append(flags.GlobalFlags,
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tc.Cflags(),
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"${config.CommonGlobalCflags}",
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fmt.Sprintf("${config.%sGlobalCflags}", hod))
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}
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if Bool(ctx.Config().ProductVariables.Brillo) {
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flags.GlobalFlags = append(flags.GlobalFlags, "-D__BRILLO__")
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}
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if ctx.Device() {
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if Bool(compiler.Properties.Rtti) {
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flags.CppFlags = append(flags.CppFlags, "-frtti")
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} else {
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flags.CppFlags = append(flags.CppFlags, "-fno-rtti")
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}
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}
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flags.AsFlags = append(flags.AsFlags, "-D__ASSEMBLY__")
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if flags.Clang {
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flags.CppFlags = append(flags.CppFlags, tc.ClangCppflags())
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} else {
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flags.CppFlags = append(flags.CppFlags, tc.Cppflags())
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}
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flags.YasmFlags = append(flags.YasmFlags, tc.YasmFlags())
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if flags.Clang {
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flags.GlobalFlags = append(flags.GlobalFlags, tc.ToolchainClangCflags())
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} else {
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flags.GlobalFlags = append(flags.GlobalFlags, tc.ToolchainCflags())
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}
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if !ctx.useSdk() {
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cStd := config.CStdVersion
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if String(compiler.Properties.C_std) == "experimental" {
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cStd = config.ExperimentalCStdVersion
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} else if String(compiler.Properties.C_std) != "" {
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cStd = String(compiler.Properties.C_std)
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}
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cppStd := String(compiler.Properties.Cpp_std)
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switch String(compiler.Properties.Cpp_std) {
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case "":
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cppStd = config.CppStdVersion
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case "experimental":
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cppStd = config.ExperimentalCppStdVersion
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case "c++17", "gnu++17":
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// Map c++17 and gnu++17 to their 1z equivalents, until 17 is finalized.
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cppStd = strings.Replace(String(compiler.Properties.Cpp_std), "17", "1z", 1)
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}
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if !flags.Clang {
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// GCC uses an invalid C++14 ABI (emits calls to
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// __cxa_throw_bad_array_length, which is not a valid C++ RT ABI).
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// http://b/25022512
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cppStd = config.GccCppStdVersion
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} else if ctx.Host() && !flags.Clang {
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// The host GCC doesn't support C++14 (and is deprecated, so likely
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// never will). Build these modules with C++11.
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cppStd = config.GccCppStdVersion
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}
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if compiler.Properties.Gnu_extensions != nil && *compiler.Properties.Gnu_extensions == false {
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cStd = gnuToCReplacer.Replace(cStd)
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cppStd = gnuToCReplacer.Replace(cppStd)
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}
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flags.ConlyFlags = append([]string{"-std=" + cStd}, flags.ConlyFlags...)
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flags.CppFlags = append([]string{"-std=" + cppStd}, flags.CppFlags...)
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}
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if ctx.useVndk() {
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flags.CFlags = append(flags.CFlags, esc(compiler.Properties.Target.Vendor.Cflags)...)
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}
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// We can enforce some rules more strictly in the code we own. strict
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// indicates if this is code that we can be stricter with. If we have
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// rules that we want to apply to *our* code (but maybe can't for
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// vendor/device specific things), we could extend this to be a ternary
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// value.
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strict := true
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if strings.HasPrefix(android.PathForModuleSrc(ctx).String(), "external/") {
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strict = false
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}
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// Can be used to make some annotations stricter for code we can fix
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// (such as when we mark functions as deprecated).
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if strict {
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flags.CFlags = append(flags.CFlags, "-DANDROID_STRICT")
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}
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if compiler.hasSrcExt(".proto") {
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flags = protoFlags(ctx, flags, &compiler.Proto)
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}
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if compiler.hasSrcExt(".y") || compiler.hasSrcExt(".yy") {
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flags.GlobalFlags = append(flags.GlobalFlags,
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"-I"+android.PathForModuleGen(ctx, "yacc", ctx.ModuleDir()).String())
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}
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if compiler.hasSrcExt(".mc") {
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flags.GlobalFlags = append(flags.GlobalFlags,
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"-I"+android.PathForModuleGen(ctx, "windmc", ctx.ModuleDir()).String())
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}
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if compiler.hasSrcExt(".aidl") {
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if len(compiler.Properties.Aidl.Local_include_dirs) > 0 {
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localAidlIncludeDirs := android.PathsForModuleSrc(ctx, compiler.Properties.Aidl.Local_include_dirs)
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flags.aidlFlags = append(flags.aidlFlags, includeDirsToFlags(localAidlIncludeDirs))
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}
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if len(compiler.Properties.Aidl.Include_dirs) > 0 {
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rootAidlIncludeDirs := android.PathsForSource(ctx, compiler.Properties.Aidl.Include_dirs)
|
|
flags.aidlFlags = append(flags.aidlFlags, includeDirsToFlags(rootAidlIncludeDirs))
|
|
}
|
|
|
|
flags.GlobalFlags = append(flags.GlobalFlags,
|
|
"-I"+android.PathForModuleGen(ctx, "aidl").String())
|
|
}
|
|
|
|
if compiler.hasSrcExt(".rs") || compiler.hasSrcExt(".fs") {
|
|
flags = rsFlags(ctx, flags, &compiler.Properties)
|
|
}
|
|
|
|
if len(compiler.Properties.Srcs) > 0 {
|
|
module := ctx.ModuleDir() + "/Android.bp:" + ctx.ModuleName()
|
|
if inList("-Wno-error", flags.CFlags) || inList("-Wno-error", flags.CppFlags) {
|
|
addToModuleList(ctx, modulesUsingWnoError, module)
|
|
} else if !inList("-Werror", flags.CFlags) && !inList("-Werror", flags.CppFlags) {
|
|
if warningsAreAllowed(ctx.ModuleDir()) {
|
|
addToModuleList(ctx, modulesAddedWall, module)
|
|
flags.CFlags = append([]string{"-Wall"}, flags.CFlags...)
|
|
} else {
|
|
flags.CFlags = append([]string{"-Wall", "-Werror"}, flags.CFlags...)
|
|
}
|
|
}
|
|
}
|
|
|
|
return flags
|
|
}
|
|
|
|
func (compiler *baseCompiler) hasSrcExt(ext string) bool {
|
|
for _, src := range compiler.srcsBeforeGen {
|
|
if src.Ext() == ext {
|
|
return true
|
|
}
|
|
}
|
|
for _, src := range compiler.Properties.Srcs {
|
|
if filepath.Ext(src) == ext {
|
|
return true
|
|
}
|
|
}
|
|
for _, src := range compiler.Properties.OriginalSrcs {
|
|
if filepath.Ext(src) == ext {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
var gnuToCReplacer = strings.NewReplacer("gnu", "c")
|
|
|
|
func ndkPathDeps(ctx ModuleContext) android.Paths {
|
|
if ctx.useSdk() {
|
|
// The NDK sysroot timestamp file depends on all the NDK sysroot files
|
|
// (headers and libraries).
|
|
return android.Paths{getNdkSysrootTimestampFile(ctx)}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (compiler *baseCompiler) compile(ctx ModuleContext, flags Flags, deps PathDeps) Objects {
|
|
pathDeps := deps.GeneratedHeaders
|
|
pathDeps = append(pathDeps, ndkPathDeps(ctx)...)
|
|
|
|
buildFlags := flagsToBuilderFlags(flags)
|
|
|
|
srcs := append(android.Paths(nil), compiler.srcsBeforeGen...)
|
|
|
|
srcs, genDeps := genSources(ctx, srcs, buildFlags)
|
|
|
|
pathDeps = append(pathDeps, genDeps...)
|
|
pathDeps = append(pathDeps, flags.CFlagsDeps...)
|
|
|
|
compiler.deps = pathDeps
|
|
|
|
// Save src, buildFlags and context
|
|
compiler.srcs = srcs
|
|
|
|
// Compile files listed in c.Properties.Srcs into objects
|
|
objs := compileObjs(ctx, buildFlags, "", srcs, compiler.deps)
|
|
|
|
if ctx.Failed() {
|
|
return Objects{}
|
|
}
|
|
|
|
return objs
|
|
}
|
|
|
|
// Compile a list of source files into objects a specified subdirectory
|
|
func compileObjs(ctx android.ModuleContext, flags builderFlags,
|
|
subdir string, srcFiles, deps android.Paths) Objects {
|
|
|
|
return TransformSourceToObj(ctx, subdir, srcFiles, flags, deps)
|
|
}
|