platform_build_soong/ui/build/dumpvars.go

290 lines
8.1 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 build
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"strings"
"android/soong/ui/metrics"
"android/soong/ui/status"
)
// DumpMakeVars can be used to extract the values of Make variables after the
// product configurations are loaded. This is roughly equivalent to the
// `get_build_var` bash function.
//
// goals can be used to set MAKECMDGOALS, which emulates passing arguments to
// Make without actually building them. So all the variables based on
// MAKECMDGOALS can be read.
//
// vars is the list of variables to read. The values will be put in the
// returned map.
//
// variables controlled by soong_ui directly are now returned without needing
// to call into make, to retain compatibility.
func DumpMakeVars(ctx Context, config Config, goals, vars []string) (map[string]string, error) {
soongUiVars := map[string]func() string{
"OUT_DIR": func() string { return config.OutDir() },
"DIST_DIR": func() string { return config.DistDir() },
"TMPDIR": func() string { return absPath(ctx, config.TempDir()) },
}
makeVars := make([]string, 0, len(vars))
for _, v := range vars {
if _, ok := soongUiVars[v]; !ok {
makeVars = append(makeVars, v)
}
}
var ret map[string]string
if len(makeVars) > 0 {
// It's not safe to use the same TMPDIR as the build, as that can be removed.
tmpDir, err := ioutil.TempDir("", "dumpvars")
if err != nil {
return nil, err
}
defer os.RemoveAll(tmpDir)
SetupLitePath(ctx, config, tmpDir)
ret, err = dumpMakeVars(ctx, config, goals, makeVars, false, tmpDir)
if err != nil {
return ret, err
}
} else {
ret = make(map[string]string)
}
for _, v := range vars {
if f, ok := soongUiVars[v]; ok {
ret[v] = f()
}
}
return ret, nil
}
func dumpMakeVars(ctx Context, config Config, goals, vars []string, write_soong_vars bool, tmpDir string) (map[string]string, error) {
ctx.BeginTrace(metrics.RunKati, "dumpvars")
defer ctx.EndTrace()
cmd := Command(ctx, config, "dumpvars",
config.PrebuiltBuildTool("ckati"),
"-f", "build/make/core/config.mk",
"--color_warnings",
"--kati_stats",
"dump-many-vars",
"MAKECMDGOALS="+strings.Join(goals, " "))
cmd.Environment.Set("CALLED_FROM_SETUP", "true")
if write_soong_vars {
cmd.Environment.Set("WRITE_SOONG_VARIABLES", "true")
}
cmd.Environment.Set("DUMP_MANY_VARS", strings.Join(vars, " "))
if tmpDir != "" {
cmd.Environment.Set("TMPDIR", tmpDir)
}
cmd.Sandbox = dumpvarsSandbox
output := bytes.Buffer{}
cmd.Stdout = &output
pipe, err := cmd.StderrPipe()
if err != nil {
ctx.Fatalln("Error getting output pipe for ckati:", err)
}
cmd.StartOrFatal()
// TODO: error out when Stderr contains any content
status.KatiReader(ctx.Status.StartTool(), pipe)
cmd.WaitOrFatal()
ret := make(map[string]string, len(vars))
for _, line := range strings.Split(output.String(), "\n") {
if len(line) == 0 {
continue
}
if key, value, ok := decodeKeyValue(line); ok {
if value, ok = singleUnquote(value); ok {
ret[key] = value
ctx.Verboseln(key, value)
} else {
return nil, fmt.Errorf("Failed to parse make line: %q", line)
}
} else {
return nil, fmt.Errorf("Failed to parse make line: %q", line)
}
}
if ctx.Metrics != nil {
ctx.Metrics.SetMetadataMetrics(ret)
}
return ret, nil
}
// Variables to print out in the top banner
var BannerVars = []string{
"PLATFORM_VERSION_CODENAME",
"PLATFORM_VERSION",
"TARGET_PRODUCT",
"TARGET_BUILD_VARIANT",
"TARGET_BUILD_TYPE",
"TARGET_BUILD_APPS",
"TARGET_BUILD_UNBUNDLED",
"TARGET_ARCH",
"TARGET_ARCH_VARIANT",
"TARGET_CPU_VARIANT",
"TARGET_2ND_ARCH",
"TARGET_2ND_ARCH_VARIANT",
"TARGET_2ND_CPU_VARIANT",
"HOST_ARCH",
"HOST_2ND_ARCH",
"HOST_OS",
"HOST_OS_EXTRA",
"HOST_CROSS_OS",
"HOST_CROSS_ARCH",
"HOST_CROSS_2ND_ARCH",
"HOST_BUILD_TYPE",
"BUILD_ID",
"OUT_DIR",
"AUX_OS_VARIANT_LIST",
"PRODUCT_SOONG_NAMESPACES",
}
func Banner(make_vars map[string]string) string {
b := &bytes.Buffer{}
fmt.Fprintln(b, "============================================")
for _, name := range BannerVars {
if make_vars[name] != "" {
fmt.Fprintf(b, "%s=%s\n", name, make_vars[name])
}
}
fmt.Fprint(b, "============================================")
return b.String()
}
func runMakeProductConfig(ctx Context, config Config) {
// Variables to export into the environment of Kati/Ninja
exportEnvVars := []string{
// So that we can use the correct TARGET_PRODUCT if it's been
// modified by a buildspec.mk
"TARGET_PRODUCT",
"TARGET_BUILD_VARIANT",
"TARGET_BUILD_APPS",
"TARGET_BUILD_UNBUNDLED",
// compiler wrappers set up by make
"CC_WRAPPER",
"CXX_WRAPPER",
"RBE_WRAPPER",
"JAVAC_WRAPPER",
"R8_WRAPPER",
"D8_WRAPPER",
// ccache settings
"CCACHE_COMPILERCHECK",
"CCACHE_SLOPPINESS",
"CCACHE_BASEDIR",
"CCACHE_CPP2",
}
allVars := append(append([]string{
// Used to execute Kati and Ninja
"NINJA_GOALS",
"KATI_GOALS",
// To find target/product/<DEVICE>
"TARGET_DEVICE",
// So that later Kati runs can find BoardConfig.mk faster
"TARGET_DEVICE_DIR",
// To decide whether to skip the old installed cleanup step.
"FULL_BUILD",
// Whether --werror_overriding_commands will work
"BUILD_BROKEN_DUP_RULES",
// Whether to enable the network during the build
"BUILD_BROKEN_USES_NETWORK",
// Extra environment variables to be exported to ninja
"BUILD_BROKEN_NINJA_USES_ENV_VARS",
// Not used, but useful to be in the soong.log
"BOARD_VNDK_VERSION",
"DEFAULT_WARNING_BUILD_MODULE_TYPES",
"DEFAULT_ERROR_BUILD_MODULE_TYPES",
"BUILD_BROKEN_PREBUILT_ELF_FILES",
"BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW",
"BUILD_BROKEN_USES_BUILD_COPY_HEADERS",
"BUILD_BROKEN_USES_BUILD_EXECUTABLE",
"BUILD_BROKEN_USES_BUILD_FUZZ_TEST",
"BUILD_BROKEN_USES_BUILD_HEADER_LIBRARY",
"BUILD_BROKEN_USES_BUILD_HOST_DALVIK_JAVA_LIBRARY",
"BUILD_BROKEN_USES_BUILD_HOST_DALVIK_STATIC_JAVA_LIBRARY",
"BUILD_BROKEN_USES_BUILD_HOST_EXECUTABLE",
"BUILD_BROKEN_USES_BUILD_HOST_JAVA_LIBRARY",
"BUILD_BROKEN_USES_BUILD_HOST_PREBUILT",
"BUILD_BROKEN_USES_BUILD_HOST_SHARED_LIBRARY",
"BUILD_BROKEN_USES_BUILD_HOST_STATIC_LIBRARY",
"BUILD_BROKEN_USES_BUILD_JAVA_LIBRARY",
"BUILD_BROKEN_USES_BUILD_MULTI_PREBUILT",
"BUILD_BROKEN_USES_BUILD_NATIVE_TEST",
"BUILD_BROKEN_USES_BUILD_NOTICE_FILE",
"BUILD_BROKEN_USES_BUILD_PACKAGE",
"BUILD_BROKEN_USES_BUILD_PHONY_PACKAGE",
"BUILD_BROKEN_USES_BUILD_PREBUILT",
"BUILD_BROKEN_USES_BUILD_RRO_PACKAGE",
"BUILD_BROKEN_USES_BUILD_SHARED_LIBRARY",
"BUILD_BROKEN_USES_BUILD_STATIC_JAVA_LIBRARY",
"BUILD_BROKEN_USES_BUILD_STATIC_LIBRARY",
}, exportEnvVars...), BannerVars...)
makeVars, err := dumpMakeVars(ctx, config, config.Arguments(), allVars, true, "")
if err != nil {
ctx.Fatalln("Error dumping make vars:", err)
}
env := config.Environment()
// Print the banner like make does
if !env.IsEnvTrue("ANDROID_QUIET_BUILD") {
fmt.Fprintln(ctx.Writer, Banner(makeVars))
}
// Populate the environment
for _, name := range exportEnvVars {
if makeVars[name] == "" {
env.Unset(name)
} else {
env.Set(name, makeVars[name])
}
}
config.SetKatiArgs(strings.Fields(makeVars["KATI_GOALS"]))
config.SetNinjaArgs(strings.Fields(makeVars["NINJA_GOALS"]))
config.SetTargetDevice(makeVars["TARGET_DEVICE"])
config.SetTargetDeviceDir(makeVars["TARGET_DEVICE_DIR"])
config.SetFullBuild(makeVars["FULL_BUILD"] == "true")
config.SetBuildBrokenDupRules(makeVars["BUILD_BROKEN_DUP_RULES"] == "true")
config.SetBuildBrokenUsesNetwork(makeVars["BUILD_BROKEN_USES_NETWORK"] == "true")
config.SetBuildBrokenNinjaUsesEnvVars(strings.Fields(makeVars["BUILD_BROKEN_NINJA_USES_ENV_VARS"]))
}