c49c393f73
Previous solution by using objcopy uses a quirky behaviour of the GNU objcopy and there is no equivalent option in llvm-objcopy. Instead of removing symbols, extract and repack libgcc to only include required objects. Bug: 142585047 Test: presubmit Change-Id: I58af74c18838f797e481da38c3265f0624fddf99
926 lines
27 KiB
Go
926 lines
27 KiB
Go
// Copyright 2015 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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// This file generates the final rules for compiling all C/C++. All properties related to
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// compiling should have been translated into builderFlags or another argument to the Transform*
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// functions.
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import (
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"fmt"
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"path/filepath"
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"runtime"
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"strings"
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"github.com/google/blueprint"
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"github.com/google/blueprint/pathtools"
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"android/soong/android"
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"android/soong/cc/config"
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)
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const (
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objectExtension = ".o"
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staticLibraryExtension = ".a"
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)
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var (
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abiCheckAllowFlags = []string{
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"-allow-unreferenced-changes",
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"-allow-unreferenced-elf-symbol-changes",
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}
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)
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var (
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pctx = android.NewPackageContext("android/soong/cc")
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cc = pctx.AndroidGomaStaticRule("cc",
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blueprint.RuleParams{
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Command: "$relPwd ${config.CcWrapper}$ccCmd -c $cFlags -MD -MF ${out}.d -o $out $in",
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CommandDeps: []string{"$ccCmd"},
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},
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"ccCmd", "cFlags")
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ccNoDeps = pctx.AndroidGomaStaticRule("ccNoDeps",
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blueprint.RuleParams{
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Command: "$relPwd ${config.CcWrapper}$ccCmd -c $cFlags -o $out $in",
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CommandDeps: []string{"$ccCmd"},
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},
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"ccCmd", "cFlags")
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ld = pctx.AndroidStaticRule("ld",
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blueprint.RuleParams{
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Command: "$ldCmd ${crtBegin} @${out}.rsp " +
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"${libFlags} ${crtEnd} -o ${out} ${ldFlags} ${extraLibFlags}",
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CommandDeps: []string{"$ldCmd"},
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Rspfile: "${out}.rsp",
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RspfileContent: "${in}",
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// clang -Wl,--out-implib doesn't update its output file if it hasn't changed.
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Restat: true,
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},
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"ldCmd", "crtBegin", "libFlags", "crtEnd", "ldFlags", "extraLibFlags")
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partialLd = pctx.AndroidStaticRule("partialLd",
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blueprint.RuleParams{
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// Without -no-pie, clang 7.0 adds -pie to link Android files,
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// but -r and -pie cannot be used together.
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Command: "$ldCmd -fuse-ld=lld -nostdlib -no-pie -Wl,-r ${in} -o ${out} ${ldFlags}",
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CommandDeps: []string{"$ldCmd"},
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},
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"ldCmd", "ldFlags")
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ar = pctx.AndroidStaticRule("ar",
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blueprint.RuleParams{
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Command: "rm -f ${out} && $arCmd $arFlags $out @${out}.rsp",
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CommandDeps: []string{"$arCmd"},
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Rspfile: "${out}.rsp",
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RspfileContent: "${in}",
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},
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"arCmd", "arFlags")
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darwinStrip = pctx.AndroidStaticRule("darwinStrip",
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blueprint.RuleParams{
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Command: "${config.MacStripPath} -u -r -o $out $in",
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CommandDeps: []string{"${config.MacStripPath}"},
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})
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prefixSymbols = pctx.AndroidStaticRule("prefixSymbols",
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blueprint.RuleParams{
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Command: "$objcopyCmd --prefix-symbols=${prefix} ${in} ${out}",
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CommandDeps: []string{"$objcopyCmd"},
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},
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"objcopyCmd", "prefix")
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_ = pctx.SourcePathVariable("stripPath", "build/soong/scripts/strip.sh")
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_ = pctx.SourcePathVariable("xzCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/xz")
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// b/132822437: objcopy uses a file descriptor per .o file when called on .a files, which runs the system out of
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// file descriptors on darwin. Limit concurrent calls to 5 on darwin.
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darwinStripPool = func() blueprint.Pool {
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if runtime.GOOS == "darwin" {
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return pctx.StaticPool("darwinStripPool", blueprint.PoolParams{
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Depth: 5,
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})
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} else {
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return nil
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}
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}()
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strip = pctx.AndroidStaticRule("strip",
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blueprint.RuleParams{
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Command: "CROSS_COMPILE=$crossCompile XZ=$xzCmd CLANG_BIN=${config.ClangBin} $stripPath ${args} -i ${in} -o ${out} -d ${out}.d",
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CommandDeps: []string{"$stripPath", "$xzCmd"},
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Pool: darwinStripPool,
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},
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"args", "crossCompile")
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_ = pctx.SourcePathVariable("archiveRepackPath", "build/soong/scripts/archive_repack.sh")
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archiveRepack = pctx.AndroidStaticRule("archiveRepack",
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blueprint.RuleParams{
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Command: "CLANG_BIN=${config.ClangBin} $archiveRepackPath -i ${in} -o ${out} -d ${out}.d ${objects}",
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CommandDeps: []string{"$archiveRepackPath"},
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},
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"objects")
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emptyFile = pctx.AndroidStaticRule("emptyFile",
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blueprint.RuleParams{
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Command: "rm -f $out && touch $out",
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})
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_ = pctx.SourcePathVariable("tocPath", "build/soong/scripts/toc.sh")
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toc = pctx.AndroidStaticRule("toc",
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blueprint.RuleParams{
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Command: "CROSS_COMPILE=$crossCompile $tocPath $format -i ${in} -o ${out} -d ${out}.d",
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CommandDeps: []string{"$tocPath"},
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Restat: true,
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},
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"crossCompile", "format")
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clangTidy = pctx.AndroidStaticRule("clangTidy",
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blueprint.RuleParams{
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Command: "rm -f $out && ${config.ClangBin}/clang-tidy $tidyFlags $in -- $cFlags && touch $out",
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CommandDeps: []string{"${config.ClangBin}/clang-tidy"},
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},
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"cFlags", "tidyFlags")
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_ = pctx.SourcePathVariable("yasmCmd", "prebuilts/misc/${config.HostPrebuiltTag}/yasm/yasm")
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yasm = pctx.AndroidStaticRule("yasm",
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blueprint.RuleParams{
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Command: "$yasmCmd $asFlags -o $out $in && $yasmCmd $asFlags -M $in >$out.d",
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CommandDeps: []string{"$yasmCmd"},
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Depfile: "$out.d",
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Deps: blueprint.DepsGCC,
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},
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"asFlags")
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windres = pctx.AndroidStaticRule("windres",
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blueprint.RuleParams{
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Command: "$windresCmd $flags -I$$(dirname $in) -i $in -o $out",
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CommandDeps: []string{"$windresCmd"},
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},
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"windresCmd", "flags")
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_ = pctx.SourcePathVariable("sAbiDumper", "prebuilts/clang-tools/${config.HostPrebuiltTag}/bin/header-abi-dumper")
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// -w has been added since header-abi-dumper does not need to produce any sort of diagnostic information.
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sAbiDump = pctx.AndroidStaticRule("sAbiDump",
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blueprint.RuleParams{
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Command: "rm -f $out && $sAbiDumper -o ${out} $in $exportDirs -- $cFlags -w -isystem prebuilts/clang-tools/${config.HostPrebuiltTag}/clang-headers",
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CommandDeps: []string{"$sAbiDumper"},
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},
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"cFlags", "exportDirs")
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_ = pctx.SourcePathVariable("sAbiLinker", "prebuilts/clang-tools/${config.HostPrebuiltTag}/bin/header-abi-linker")
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sAbiLink = pctx.AndroidStaticRule("sAbiLink",
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blueprint.RuleParams{
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Command: "$sAbiLinker -o ${out} $symbolFilter -arch $arch $exportedHeaderFlags @${out}.rsp ",
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CommandDeps: []string{"$sAbiLinker"},
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Rspfile: "${out}.rsp",
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RspfileContent: "${in}",
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},
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"symbolFilter", "arch", "exportedHeaderFlags")
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_ = pctx.SourcePathVariable("sAbiDiffer", "prebuilts/clang-tools/${config.HostPrebuiltTag}/bin/header-abi-diff")
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sAbiDiff = pctx.RuleFunc("sAbiDiff",
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func(ctx android.PackageRuleContext) blueprint.RuleParams {
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// TODO(b/78139997): Add -check-all-apis back
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commandStr := "($sAbiDiffer ${allowFlags} -lib ${libName} -arch ${arch} -o ${out} -new ${in} -old ${referenceDump})"
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commandStr += "|| (echo 'error: Please update ABI references with: $$ANDROID_BUILD_TOP/development/vndk/tools/header-checker/utils/create_reference_dumps.py ${createReferenceDumpFlags} -l ${libName}'"
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commandStr += " && (mkdir -p $$DIST_DIR/abidiffs && cp ${out} $$DIST_DIR/abidiffs/)"
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commandStr += " && exit 1)"
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return blueprint.RuleParams{
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Command: commandStr,
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CommandDeps: []string{"$sAbiDiffer"},
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}
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},
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"allowFlags", "referenceDump", "libName", "arch", "createReferenceDumpFlags")
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unzipRefSAbiDump = pctx.AndroidStaticRule("unzipRefSAbiDump",
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blueprint.RuleParams{
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Command: "gunzip -c $in > $out",
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})
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zip = pctx.AndroidStaticRule("zip",
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blueprint.RuleParams{
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Command: "cat $out.rsp | tr ' ' '\\n' | tr -d \\' | sort -u > ${out}.tmp && ${SoongZipCmd} -o ${out} -C $$OUT_DIR -l ${out}.tmp",
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CommandDeps: []string{"${SoongZipCmd}"},
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Rspfile: "$out.rsp",
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RspfileContent: "$in",
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})
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_ = pctx.SourcePathVariable("cxxExtractor",
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"prebuilts/clang-tools/${config.HostPrebuiltTag}/bin/cxx_extractor")
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_ = pctx.SourcePathVariable("kytheVnames", "build/soong/vnames.json")
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_ = pctx.VariableFunc("kytheCorpus",
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func(ctx android.PackageVarContext) string { return ctx.Config().XrefCorpusName() })
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kytheExtract = pctx.StaticRule("kythe",
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blueprint.RuleParams{
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Command: "rm -f $out && KYTHE_CORPUS=${kytheCorpus} KYTHE_OUTPUT_FILE=$out KYTHE_VNAMES=$kytheVnames $cxxExtractor $cFlags $in ",
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CommandDeps: []string{"$cxxExtractor", "$kytheVnames"},
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},
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"cFlags")
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)
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func init() {
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// We run gcc/clang with PWD=/proc/self/cwd to remove $TOP from the
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// debug output. That way two builds in two different directories will
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// create the same output.
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if runtime.GOOS != "darwin" {
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pctx.StaticVariable("relPwd", "PWD=/proc/self/cwd")
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} else {
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// Darwin doesn't have /proc
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pctx.StaticVariable("relPwd", "")
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}
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pctx.HostBinToolVariable("SoongZipCmd", "soong_zip")
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}
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type builderFlags struct {
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globalFlags string
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arFlags string
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asFlags string
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cFlags string
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toolingCFlags string // A separate set of cFlags for clang LibTooling tools
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toolingCppFlags string // A separate set of cppFlags for clang LibTooling tools
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conlyFlags string
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cppFlags string
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ldFlags string
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libFlags string
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extraLibFlags string
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tidyFlags string
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sAbiFlags string
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yasmFlags string
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aidlFlags string
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rsFlags string
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toolchain config.Toolchain
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tidy bool
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coverage bool
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sAbiDump bool
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emitXrefs bool
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assemblerWithCpp bool
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systemIncludeFlags string
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groupStaticLibs bool
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stripKeepSymbols bool
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stripKeepSymbolsList string
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stripKeepSymbolsAndDebugFrame bool
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stripKeepMiniDebugInfo bool
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stripAddGnuDebuglink bool
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stripUseGnuStrip bool
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proto android.ProtoFlags
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protoC bool
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protoOptionsFile bool
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yacc *YaccProperties
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}
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type Objects struct {
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objFiles android.Paths
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tidyFiles android.Paths
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coverageFiles android.Paths
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sAbiDumpFiles android.Paths
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kytheFiles android.Paths
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}
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func (a Objects) Copy() Objects {
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return Objects{
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objFiles: append(android.Paths{}, a.objFiles...),
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tidyFiles: append(android.Paths{}, a.tidyFiles...),
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coverageFiles: append(android.Paths{}, a.coverageFiles...),
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sAbiDumpFiles: append(android.Paths{}, a.sAbiDumpFiles...),
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kytheFiles: append(android.Paths{}, a.kytheFiles...),
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}
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}
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func (a Objects) Append(b Objects) Objects {
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return Objects{
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objFiles: append(a.objFiles, b.objFiles...),
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tidyFiles: append(a.tidyFiles, b.tidyFiles...),
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coverageFiles: append(a.coverageFiles, b.coverageFiles...),
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sAbiDumpFiles: append(a.sAbiDumpFiles, b.sAbiDumpFiles...),
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kytheFiles: append(a.kytheFiles, b.kytheFiles...),
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}
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}
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// Generate rules for compiling multiple .c, .cpp, or .S files to individual .o files
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func TransformSourceToObj(ctx android.ModuleContext, subdir string, srcFiles android.Paths,
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flags builderFlags, pathDeps android.Paths, cFlagsDeps android.Paths) Objects {
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objFiles := make(android.Paths, len(srcFiles))
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var tidyFiles android.Paths
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if flags.tidy {
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tidyFiles = make(android.Paths, 0, len(srcFiles))
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}
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var coverageFiles android.Paths
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if flags.coverage {
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coverageFiles = make(android.Paths, 0, len(srcFiles))
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}
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var kytheFiles android.Paths
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if flags.emitXrefs {
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kytheFiles = make(android.Paths, 0, len(srcFiles))
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}
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commonFlags := strings.Join([]string{
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flags.globalFlags,
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flags.systemIncludeFlags,
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}, " ")
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toolingCflags := strings.Join([]string{
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commonFlags,
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flags.toolingCFlags,
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flags.conlyFlags,
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}, " ")
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cflags := strings.Join([]string{
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commonFlags,
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flags.cFlags,
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flags.conlyFlags,
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}, " ")
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toolingCppflags := strings.Join([]string{
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commonFlags,
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flags.toolingCFlags,
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flags.toolingCppFlags,
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}, " ")
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cppflags := strings.Join([]string{
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commonFlags,
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flags.cFlags,
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flags.cppFlags,
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}, " ")
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asflags := strings.Join([]string{
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commonFlags,
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flags.asFlags,
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}, " ")
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var sAbiDumpFiles android.Paths
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if flags.sAbiDump {
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sAbiDumpFiles = make(android.Paths, 0, len(srcFiles))
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}
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cflags += " ${config.NoOverrideClangGlobalCflags}"
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toolingCflags += " ${config.NoOverrideClangGlobalCflags}"
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cppflags += " ${config.NoOverrideClangGlobalCflags}"
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toolingCppflags += " ${config.NoOverrideClangGlobalCflags}"
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for i, srcFile := range srcFiles {
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objFile := android.ObjPathWithExt(ctx, subdir, srcFile, "o")
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objFiles[i] = objFile
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switch srcFile.Ext() {
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case ".asm":
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ctx.Build(pctx, android.BuildParams{
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Rule: yasm,
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Description: "yasm " + srcFile.Rel(),
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Output: objFile,
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Input: srcFile,
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Implicits: cFlagsDeps,
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OrderOnly: pathDeps,
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Args: map[string]string{
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"asFlags": flags.yasmFlags,
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},
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})
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continue
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case ".rc":
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ctx.Build(pctx, android.BuildParams{
|
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Rule: windres,
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Description: "windres " + srcFile.Rel(),
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Output: objFile,
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Input: srcFile,
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Implicits: cFlagsDeps,
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OrderOnly: pathDeps,
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Args: map[string]string{
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"windresCmd": gccCmd(flags.toolchain, "windres"),
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"flags": flags.toolchain.WindresFlags(),
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},
|
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})
|
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continue
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case ".o":
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objFiles[i] = srcFile
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continue
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}
|
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|
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var moduleCflags string
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var moduleToolingCflags string
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var ccCmd string
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tidy := flags.tidy
|
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coverage := flags.coverage
|
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dump := flags.sAbiDump
|
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rule := cc
|
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emitXref := flags.emitXrefs
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|
|
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switch srcFile.Ext() {
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case ".s":
|
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if !flags.assemblerWithCpp {
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rule = ccNoDeps
|
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}
|
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fallthrough
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case ".S":
|
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ccCmd = "clang"
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moduleCflags = asflags
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tidy = false
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coverage = false
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dump = false
|
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emitXref = false
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case ".c":
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ccCmd = "clang"
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moduleCflags = cflags
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moduleToolingCflags = toolingCflags
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case ".cpp", ".cc", ".cxx", ".mm":
|
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ccCmd = "clang++"
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moduleCflags = cppflags
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moduleToolingCflags = toolingCppflags
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default:
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ctx.ModuleErrorf("File %s has unknown extension", srcFile)
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continue
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}
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|
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ccDesc := ccCmd
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|
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ccCmd = "${config.ClangBin}/" + ccCmd
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|
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var implicitOutputs android.WritablePaths
|
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if coverage {
|
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gcnoFile := android.ObjPathWithExt(ctx, subdir, srcFile, "gcno")
|
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implicitOutputs = append(implicitOutputs, gcnoFile)
|
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coverageFiles = append(coverageFiles, gcnoFile)
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}
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ctx.Build(pctx, android.BuildParams{
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Rule: rule,
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Description: ccDesc + " " + srcFile.Rel(),
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Output: objFile,
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ImplicitOutputs: implicitOutputs,
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Input: srcFile,
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Implicits: cFlagsDeps,
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OrderOnly: pathDeps,
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Args: map[string]string{
|
|
"cFlags": moduleCflags,
|
|
"ccCmd": ccCmd,
|
|
},
|
|
})
|
|
|
|
if emitXref {
|
|
kytheFile := android.ObjPathWithExt(ctx, subdir, srcFile, "kzip")
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: kytheExtract,
|
|
Description: "Xref C++ extractor " + srcFile.Rel(),
|
|
Output: kytheFile,
|
|
Input: srcFile,
|
|
Implicits: cFlagsDeps,
|
|
OrderOnly: pathDeps,
|
|
Args: map[string]string{
|
|
"cFlags": moduleCflags,
|
|
},
|
|
})
|
|
kytheFiles = append(kytheFiles, kytheFile)
|
|
}
|
|
|
|
if tidy {
|
|
tidyFile := android.ObjPathWithExt(ctx, subdir, srcFile, "tidy")
|
|
tidyFiles = append(tidyFiles, tidyFile)
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: clangTidy,
|
|
Description: "clang-tidy " + srcFile.Rel(),
|
|
Output: tidyFile,
|
|
Input: srcFile,
|
|
// We must depend on objFile, since clang-tidy doesn't
|
|
// support exporting dependencies.
|
|
Implicit: objFile,
|
|
Implicits: cFlagsDeps,
|
|
OrderOnly: pathDeps,
|
|
Args: map[string]string{
|
|
"cFlags": moduleToolingCflags,
|
|
"tidyFlags": flags.tidyFlags,
|
|
},
|
|
})
|
|
}
|
|
|
|
if dump {
|
|
sAbiDumpFile := android.ObjPathWithExt(ctx, subdir, srcFile, "sdump")
|
|
sAbiDumpFiles = append(sAbiDumpFiles, sAbiDumpFile)
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: sAbiDump,
|
|
Description: "header-abi-dumper " + srcFile.Rel(),
|
|
Output: sAbiDumpFile,
|
|
Input: srcFile,
|
|
Implicit: objFile,
|
|
Implicits: cFlagsDeps,
|
|
OrderOnly: pathDeps,
|
|
Args: map[string]string{
|
|
"cFlags": moduleToolingCflags,
|
|
"exportDirs": flags.sAbiFlags,
|
|
},
|
|
})
|
|
}
|
|
|
|
}
|
|
|
|
return Objects{
|
|
objFiles: objFiles,
|
|
tidyFiles: tidyFiles,
|
|
coverageFiles: coverageFiles,
|
|
sAbiDumpFiles: sAbiDumpFiles,
|
|
kytheFiles: kytheFiles,
|
|
}
|
|
}
|
|
|
|
// Generate a rule for compiling multiple .o files to a static library (.a)
|
|
func TransformObjToStaticLib(ctx android.ModuleContext, objFiles android.Paths,
|
|
flags builderFlags, outputFile android.ModuleOutPath, deps android.Paths) {
|
|
|
|
arCmd := "${config.ClangBin}/llvm-ar"
|
|
arFlags := "crsPD"
|
|
if !ctx.Darwin() {
|
|
arFlags += " -format=gnu"
|
|
}
|
|
if flags.arFlags != "" {
|
|
arFlags += " " + flags.arFlags
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: ar,
|
|
Description: "static link " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Inputs: objFiles,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"arFlags": arFlags,
|
|
"arCmd": arCmd,
|
|
},
|
|
})
|
|
}
|
|
|
|
// Generate a rule for compiling multiple .o files, plus static libraries, whole static libraries,
|
|
// and shared libraries, to a shared library (.so) or dynamic executable
|
|
func TransformObjToDynamicBinary(ctx android.ModuleContext,
|
|
objFiles, sharedLibs, staticLibs, lateStaticLibs, wholeStaticLibs, deps android.Paths,
|
|
crtBegin, crtEnd android.OptionalPath, groupLate bool, flags builderFlags, outputFile android.WritablePath, implicitOutputs android.WritablePaths) {
|
|
|
|
ldCmd := "${config.ClangBin}/clang++"
|
|
|
|
var libFlagsList []string
|
|
|
|
if len(flags.libFlags) > 0 {
|
|
libFlagsList = append(libFlagsList, flags.libFlags)
|
|
}
|
|
|
|
if len(wholeStaticLibs) > 0 {
|
|
if ctx.Host() && ctx.Darwin() {
|
|
libFlagsList = append(libFlagsList, android.JoinWithPrefix(wholeStaticLibs.Strings(), "-force_load "))
|
|
} else {
|
|
libFlagsList = append(libFlagsList, "-Wl,--whole-archive ")
|
|
libFlagsList = append(libFlagsList, wholeStaticLibs.Strings()...)
|
|
libFlagsList = append(libFlagsList, "-Wl,--no-whole-archive ")
|
|
}
|
|
}
|
|
|
|
if flags.groupStaticLibs && !ctx.Darwin() && len(staticLibs) > 0 {
|
|
libFlagsList = append(libFlagsList, "-Wl,--start-group")
|
|
}
|
|
libFlagsList = append(libFlagsList, staticLibs.Strings()...)
|
|
if flags.groupStaticLibs && !ctx.Darwin() && len(staticLibs) > 0 {
|
|
libFlagsList = append(libFlagsList, "-Wl,--end-group")
|
|
}
|
|
|
|
if groupLate && !ctx.Darwin() && len(lateStaticLibs) > 0 {
|
|
libFlagsList = append(libFlagsList, "-Wl,--start-group")
|
|
}
|
|
libFlagsList = append(libFlagsList, lateStaticLibs.Strings()...)
|
|
if groupLate && !ctx.Darwin() && len(lateStaticLibs) > 0 {
|
|
libFlagsList = append(libFlagsList, "-Wl,--end-group")
|
|
}
|
|
|
|
for _, lib := range sharedLibs {
|
|
libFile := lib.String()
|
|
if ctx.Windows() {
|
|
libFile = pathtools.ReplaceExtension(libFile, "lib")
|
|
}
|
|
libFlagsList = append(libFlagsList, libFile)
|
|
}
|
|
|
|
deps = append(deps, staticLibs...)
|
|
deps = append(deps, lateStaticLibs...)
|
|
deps = append(deps, wholeStaticLibs...)
|
|
if crtBegin.Valid() {
|
|
deps = append(deps, crtBegin.Path(), crtEnd.Path())
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: ld,
|
|
Description: "link " + outputFile.Base(),
|
|
Output: outputFile,
|
|
ImplicitOutputs: implicitOutputs,
|
|
Inputs: objFiles,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"ldCmd": ldCmd,
|
|
"crtBegin": crtBegin.String(),
|
|
"libFlags": strings.Join(libFlagsList, " "),
|
|
"extraLibFlags": flags.extraLibFlags,
|
|
"ldFlags": flags.ldFlags,
|
|
"crtEnd": crtEnd.String(),
|
|
},
|
|
})
|
|
}
|
|
|
|
// Generate a rule to combine .dump sAbi dump files from multiple source files
|
|
// into a single .ldump sAbi dump file
|
|
func TransformDumpToLinkedDump(ctx android.ModuleContext, sAbiDumps android.Paths, soFile android.Path,
|
|
baseName, exportedHeaderFlags string, symbolFile android.OptionalPath,
|
|
excludedSymbolVersions, excludedSymbolTags []string) android.OptionalPath {
|
|
|
|
outputFile := android.PathForModuleOut(ctx, baseName+".lsdump")
|
|
|
|
implicits := android.Paths{soFile}
|
|
symbolFilterStr := "-so " + soFile.String()
|
|
|
|
if symbolFile.Valid() {
|
|
implicits = append(implicits, symbolFile.Path())
|
|
symbolFilterStr += " -v " + symbolFile.String()
|
|
}
|
|
for _, ver := range excludedSymbolVersions {
|
|
symbolFilterStr += " --exclude-symbol-version " + ver
|
|
}
|
|
for _, tag := range excludedSymbolTags {
|
|
symbolFilterStr += " --exclude-symbol-tag " + tag
|
|
}
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: sAbiLink,
|
|
Description: "header-abi-linker " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Inputs: sAbiDumps,
|
|
Implicits: implicits,
|
|
Args: map[string]string{
|
|
"symbolFilter": symbolFilterStr,
|
|
"arch": ctx.Arch().ArchType.Name,
|
|
"exportedHeaderFlags": exportedHeaderFlags,
|
|
},
|
|
})
|
|
return android.OptionalPathForPath(outputFile)
|
|
}
|
|
|
|
func UnzipRefDump(ctx android.ModuleContext, zippedRefDump android.Path, baseName string) android.Path {
|
|
outputFile := android.PathForModuleOut(ctx, baseName+"_ref.lsdump")
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: unzipRefSAbiDump,
|
|
Description: "gunzip" + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: zippedRefDump,
|
|
})
|
|
return outputFile
|
|
}
|
|
|
|
func SourceAbiDiff(ctx android.ModuleContext, inputDump android.Path, referenceDump android.Path,
|
|
baseName, exportedHeaderFlags string, isLlndk, isNdk, isVndkExt bool) android.OptionalPath {
|
|
|
|
outputFile := android.PathForModuleOut(ctx, baseName+".abidiff")
|
|
libName := strings.TrimSuffix(baseName, filepath.Ext(baseName))
|
|
createReferenceDumpFlags := ""
|
|
|
|
localAbiCheckAllowFlags := append([]string(nil), abiCheckAllowFlags...)
|
|
if exportedHeaderFlags == "" {
|
|
localAbiCheckAllowFlags = append(localAbiCheckAllowFlags, "-advice-only")
|
|
}
|
|
if isLlndk || isNdk {
|
|
createReferenceDumpFlags = "--llndk"
|
|
if isLlndk {
|
|
// TODO(b/130324828): "-consider-opaque-types-different" should apply to
|
|
// both LLNDK and NDK shared libs. However, a known issue in header-abi-diff
|
|
// breaks libaaudio. Remove the if-guard after the issue is fixed.
|
|
localAbiCheckAllowFlags = append(localAbiCheckAllowFlags, "-consider-opaque-types-different")
|
|
}
|
|
}
|
|
if isVndkExt {
|
|
localAbiCheckAllowFlags = append(localAbiCheckAllowFlags, "-allow-extensions")
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: sAbiDiff,
|
|
Description: "header-abi-diff " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputDump,
|
|
Implicit: referenceDump,
|
|
Args: map[string]string{
|
|
"referenceDump": referenceDump.String(),
|
|
"libName": libName,
|
|
"arch": ctx.Arch().ArchType.Name,
|
|
"allowFlags": strings.Join(localAbiCheckAllowFlags, " "),
|
|
"createReferenceDumpFlags": createReferenceDumpFlags,
|
|
},
|
|
})
|
|
return android.OptionalPathForPath(outputFile)
|
|
}
|
|
|
|
// Generate a rule for extracting a table of contents from a shared library (.so)
|
|
func TransformSharedObjectToToc(ctx android.ModuleContext, inputFile android.Path,
|
|
outputFile android.WritablePath, flags builderFlags) {
|
|
|
|
var format string
|
|
var crossCompile string
|
|
if ctx.Darwin() {
|
|
format = "--macho"
|
|
crossCompile = "${config.MacToolPath}"
|
|
} else if ctx.Windows() {
|
|
format = "--pe"
|
|
crossCompile = gccCmd(flags.toolchain, "")
|
|
} else {
|
|
format = "--elf"
|
|
crossCompile = gccCmd(flags.toolchain, "")
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: toc,
|
|
Description: "generate toc " + inputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
Args: map[string]string{
|
|
"crossCompile": crossCompile,
|
|
"format": format,
|
|
},
|
|
})
|
|
}
|
|
|
|
// Generate a rule for compiling multiple .o files to a .o using ld partial linking
|
|
func TransformObjsToObj(ctx android.ModuleContext, objFiles android.Paths,
|
|
flags builderFlags, outputFile android.WritablePath, deps android.Paths) {
|
|
|
|
ldCmd := "${config.ClangBin}/clang++"
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: partialLd,
|
|
Description: "link " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Inputs: objFiles,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"ldCmd": ldCmd,
|
|
"ldFlags": flags.ldFlags,
|
|
},
|
|
})
|
|
}
|
|
|
|
// Generate a rule for runing objcopy --prefix-symbols on a binary
|
|
func TransformBinaryPrefixSymbols(ctx android.ModuleContext, prefix string, inputFile android.Path,
|
|
flags builderFlags, outputFile android.WritablePath) {
|
|
|
|
objcopyCmd := gccCmd(flags.toolchain, "objcopy")
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: prefixSymbols,
|
|
Description: "prefix symbols " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
Args: map[string]string{
|
|
"objcopyCmd": objcopyCmd,
|
|
"prefix": prefix,
|
|
},
|
|
})
|
|
}
|
|
|
|
func TransformStrip(ctx android.ModuleContext, inputFile android.Path,
|
|
outputFile android.WritablePath, flags builderFlags) {
|
|
|
|
crossCompile := gccCmd(flags.toolchain, "")
|
|
args := ""
|
|
if flags.stripAddGnuDebuglink {
|
|
args += " --add-gnu-debuglink"
|
|
}
|
|
if flags.stripKeepMiniDebugInfo {
|
|
args += " --keep-mini-debug-info"
|
|
}
|
|
if flags.stripKeepSymbols {
|
|
args += " --keep-symbols"
|
|
}
|
|
if flags.stripKeepSymbolsList != "" {
|
|
args += " -k" + flags.stripKeepSymbolsList
|
|
}
|
|
if flags.stripKeepSymbolsAndDebugFrame {
|
|
args += " --keep-symbols-and-debug-frame"
|
|
}
|
|
if flags.stripUseGnuStrip {
|
|
args += " --use-gnu-strip"
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: strip,
|
|
Description: "strip " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
Args: map[string]string{
|
|
"crossCompile": crossCompile,
|
|
"args": args,
|
|
},
|
|
})
|
|
}
|
|
|
|
func TransformDarwinStrip(ctx android.ModuleContext, inputFile android.Path,
|
|
outputFile android.WritablePath) {
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: darwinStrip,
|
|
Description: "strip " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
})
|
|
}
|
|
|
|
func TransformCoverageFilesToZip(ctx android.ModuleContext,
|
|
inputs Objects, baseName string) android.OptionalPath {
|
|
|
|
if len(inputs.coverageFiles) > 0 {
|
|
outputFile := android.PathForModuleOut(ctx, baseName+".zip")
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: zip,
|
|
Description: "zip " + outputFile.Base(),
|
|
Inputs: inputs.coverageFiles,
|
|
Output: outputFile,
|
|
})
|
|
|
|
return android.OptionalPathForPath(outputFile)
|
|
}
|
|
|
|
return android.OptionalPath{}
|
|
}
|
|
|
|
func TransformArchiveRepack(ctx android.ModuleContext, inputFile android.Path,
|
|
outputFile android.WritablePath, objects []string) {
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: archiveRepack,
|
|
Description: "Repack archive " + outputFile.Base(),
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
Args: map[string]string{
|
|
"objects": strings.Join(objects, " "),
|
|
},
|
|
})
|
|
}
|
|
|
|
func gccCmd(toolchain config.Toolchain, cmd string) string {
|
|
return filepath.Join(toolchain.GccRoot(), "bin", toolchain.GccTriple()+"-"+cmd)
|
|
}
|
|
|
|
func splitListForSize(list android.Paths, limit int) (lists []android.Paths, err error) {
|
|
var i int
|
|
|
|
start := 0
|
|
bytes := 0
|
|
for i = range list {
|
|
l := len(list[i].String())
|
|
if l > limit {
|
|
return nil, fmt.Errorf("list element greater than size limit (%d)", limit)
|
|
}
|
|
if bytes+l > limit {
|
|
lists = append(lists, list[start:i])
|
|
start = i
|
|
bytes = 0
|
|
}
|
|
bytes += l + 1 // count a space between each list element
|
|
}
|
|
|
|
lists = append(lists, list[start:])
|
|
|
|
totalLen := 0
|
|
for _, l := range lists {
|
|
totalLen += len(l)
|
|
}
|
|
if totalLen != len(list) {
|
|
panic(fmt.Errorf("Failed breaking up list, %d != %d", len(list), totalLen))
|
|
}
|
|
return lists, nil
|
|
}
|