99020b04fb
In order to ensure we are using current platform Bionic for any platform Rust binaries, we need to build the sysroot in Soong. This will also enable us too hook the "test" crate if necessary. While both a dynamic and static sysroot are available, on device only a dynamic sysroot will be injected. On host, we continue using the sysroot used to build the compiler as before. Bug: 139486496 Change-Id: I127377e5b056610ceb5015a34d266250320fbc31
146 lines
6 KiB
Go
146 lines
6 KiB
Go
// Copyright 2019 The Android Open Source Project
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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 rust
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import (
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"strings"
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"github.com/google/blueprint"
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"android/soong/android"
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)
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var (
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_ = pctx.SourcePathVariable("rustcCmd", "${config.RustBin}/rustc")
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rustc = pctx.AndroidStaticRule("rustc",
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blueprint.RuleParams{
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Command: "$rustcCmd " +
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"-C linker=${config.RustLinker} " +
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"-C link-args=\"${crtBegin} ${config.RustLinkerArgs} ${linkFlags} ${crtEnd}\" " +
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"--emit link -o $out --emit dep-info=$out.d $in ${libFlags} $rustcFlags",
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CommandDeps: []string{"$rustcCmd"},
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Depfile: "$out.d",
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Deps: blueprint.DepsGCC, // Rustc deps-info writes out make compatible dep files: https://github.com/rust-lang/rust/issues/7633
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},
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"rustcFlags", "linkFlags", "libFlags", "crtBegin", "crtEnd")
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)
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func init() {
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}
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func TransformSrcToBinary(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "bin", includeDirs)
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}
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func TransformSrctoRlib(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "rlib", includeDirs)
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}
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func TransformSrctoDylib(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "dylib", includeDirs)
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}
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func TransformSrctoStatic(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "staticlib", includeDirs)
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}
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func TransformSrctoShared(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "cdylib", includeDirs)
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}
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func TransformSrctoProcMacro(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags, outputFile android.WritablePath, includeDirs []string) {
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transformSrctoCrate(ctx, mainSrc, deps.RLibs, deps.DyLibs, deps.ProcMacros, deps.StaticLibs, deps.SharedLibs, deps.CrtBegin, deps.CrtEnd, flags, outputFile, "proc-macro", includeDirs)
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}
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func rustLibsToPaths(libs RustLibraries) android.Paths {
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var paths android.Paths
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for _, lib := range libs {
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paths = append(paths, lib.Path)
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}
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return paths
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}
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func transformSrctoCrate(ctx android.ModuleContext, main android.Path,
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rlibs, dylibs, proc_macros RustLibraries, static_libs, shared_libs android.Paths, crtBegin, crtEnd android.OptionalPath, flags Flags, outputFile android.WritablePath, crate_type string, includeDirs []string) {
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var inputs android.Paths
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var deps android.Paths
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var libFlags, rustcFlags, linkFlags []string
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crate_name := ctx.(ModuleContext).CrateName()
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targetTriple := ctx.(ModuleContext).toolchain().RustTriple()
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inputs = append(inputs, main)
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// Collect rustc flags
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rustcFlags = append(rustcFlags, flags.GlobalRustFlags...)
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rustcFlags = append(rustcFlags, flags.RustFlags...)
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rustcFlags = append(rustcFlags, "--crate-type="+crate_type)
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rustcFlags = append(rustcFlags, "--crate-name="+crate_name)
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if targetTriple != "" {
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rustcFlags = append(rustcFlags, "--target="+targetTriple)
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linkFlags = append(linkFlags, "-target "+targetTriple)
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}
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// TODO once we have static libraries in the host prebuilt .bp, this
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// should be unconditionally added.
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if !ctx.Host() {
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// If we're on a device build, do not use an implicit sysroot
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rustcFlags = append(rustcFlags, "--sysroot=/dev/null")
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}
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// Collect linker flags
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linkFlags = append(linkFlags, flags.GlobalLinkFlags...)
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linkFlags = append(linkFlags, flags.LinkFlags...)
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// Collect library/crate flags
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for _, lib := range rlibs {
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libFlags = append(libFlags, "--extern "+lib.CrateName+"="+lib.Path.String())
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}
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for _, lib := range dylibs {
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libFlags = append(libFlags, "--extern "+lib.CrateName+"="+lib.Path.String())
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}
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for _, proc_macro := range proc_macros {
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libFlags = append(libFlags, "--extern "+proc_macro.CrateName+"="+proc_macro.Path.String())
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}
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for _, path := range includeDirs {
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libFlags = append(libFlags, "-L "+path)
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}
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// Collect dependencies
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deps = append(deps, rustLibsToPaths(rlibs)...)
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deps = append(deps, rustLibsToPaths(dylibs)...)
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deps = append(deps, rustLibsToPaths(proc_macros)...)
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deps = append(deps, static_libs...)
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deps = append(deps, shared_libs...)
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if crtBegin.Valid() {
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deps = append(deps, crtBegin.Path(), crtEnd.Path())
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}
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ctx.Build(pctx, android.BuildParams{
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Rule: rustc,
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Description: "rustc " + main.Rel(),
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Output: outputFile,
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Inputs: inputs,
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Implicits: deps,
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Args: map[string]string{
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"rustcFlags": strings.Join(rustcFlags, " "),
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"linkFlags": strings.Join(linkFlags, " "),
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"libFlags": strings.Join(libFlags, " "),
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"crtBegin": crtBegin.String(),
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"crtEnd": crtEnd.String(),
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},
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})
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}
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