github.com/westcoastroms/westcoastroms-build@v0.0.0-20190928114312-2350e5a73030/build/soong/cc/rs.go (about)

     1  // Copyright 2017 Google Inc. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cc
    16  
    17  import (
    18  	"android/soong/android"
    19  	"strings"
    20  
    21  	"github.com/google/blueprint"
    22  )
    23  
    24  func init() {
    25  	pctx.HostBinToolVariable("rsCmd", "llvm-rs-cc")
    26  }
    27  
    28  var rsCppCmdLine = strings.Replace(`
    29  ${rsCmd} -o ${outDir} -d ${outDir} -a ${out} -MD -reflect-c++ ${rsFlags} $in &&
    30  (echo '${out}: \' && cat ${depFiles} | awk 'start { sub(/( \\)?$$/, " \\"); print } /:/ { start=1 }') > ${out}.d &&
    31  touch $out
    32  `, "\n", "", -1)
    33  
    34  var (
    35  	rsCpp = pctx.AndroidStaticRule("rsCpp",
    36  		blueprint.RuleParams{
    37  			Command:     rsCppCmdLine,
    38  			CommandDeps: []string{"$rsCmd"},
    39  			Depfile:     "${out}.d",
    40  			Deps:        blueprint.DepsGCC,
    41  		},
    42  		"depFiles", "outDir", "rsFlags", "stampFile")
    43  )
    44  
    45  // Takes a path to a .rs or .fs file, and returns a path to a generated ScriptC_*.cpp file
    46  // This has to match the logic in llvm-rs-cc in DetermineOutputFile.
    47  func rsGeneratedCppFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath {
    48  	fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext())
    49  	return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".cpp")
    50  }
    51  
    52  func rsGeneratedDepFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath {
    53  	fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext())
    54  	return android.PathForModuleGen(ctx, "rs", fileName+".d")
    55  }
    56  
    57  func rsGenerateCpp(ctx android.ModuleContext, rsFiles android.Paths, rsFlags string) android.Paths {
    58  	stampFile := android.PathForModuleGen(ctx, "rs", "rs.stamp")
    59  	depFiles := make(android.WritablePaths, len(rsFiles))
    60  	cppFiles := make(android.WritablePaths, len(rsFiles))
    61  	for i, rsFile := range rsFiles {
    62  		depFiles[i] = rsGeneratedDepFile(ctx, rsFile)
    63  		cppFiles[i] = rsGeneratedCppFile(ctx, rsFile)
    64  	}
    65  
    66  	ctx.Build(pctx, android.BuildParams{
    67  		Rule:            rsCpp,
    68  		Description:     "llvm-rs-cc",
    69  		Output:          stampFile,
    70  		ImplicitOutputs: cppFiles,
    71  		Inputs:          rsFiles,
    72  		Args: map[string]string{
    73  			"rsFlags":  rsFlags,
    74  			"outDir":   android.PathForModuleGen(ctx, "rs").String(),
    75  			"depFiles": strings.Join(depFiles.Strings(), " "),
    76  		},
    77  	})
    78  
    79  	return android.Paths{stampFile}
    80  }
    81  
    82  func rsFlags(ctx ModuleContext, flags Flags, properties *BaseCompilerProperties) Flags {
    83  	targetApi := String(properties.Renderscript.Target_api)
    84  	if targetApi == "" && ctx.useSdk() {
    85  		switch ctx.sdkVersion() {
    86  		case "current", "system_current", "test_current":
    87  			// Nothing
    88  		default:
    89  			targetApi = android.GetNumericSdkVersion(ctx.sdkVersion())
    90  		}
    91  	}
    92  
    93  	if targetApi != "" {
    94  		flags.rsFlags = append(flags.rsFlags, "-target-api "+targetApi)
    95  	}
    96  
    97  	flags.rsFlags = append(flags.rsFlags, "-Wall", "-Werror")
    98  	flags.rsFlags = append(flags.rsFlags, properties.Renderscript.Flags...)
    99  	if ctx.Arch().ArchType.Multilib == "lib64" {
   100  		flags.rsFlags = append(flags.rsFlags, "-m64")
   101  	} else {
   102  		flags.rsFlags = append(flags.rsFlags, "-m32")
   103  	}
   104  	flags.rsFlags = append(flags.rsFlags, "${config.RsGlobalIncludes}")
   105  
   106  	rootRsIncludeDirs := android.PathsForSource(ctx, properties.Renderscript.Include_dirs)
   107  	flags.rsFlags = append(flags.rsFlags, includeDirsToFlags(rootRsIncludeDirs))
   108  
   109  	flags.GlobalFlags = append(flags.GlobalFlags,
   110  		"-I"+android.PathForModuleGen(ctx, "rs").String(),
   111  		"-Iframeworks/rs",
   112  		"-Iframeworks/rs/cpp",
   113  	)
   114  
   115  	return flags
   116  }