141 lines
5.7 KiB
Go
141 lines
5.7 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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// 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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