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      1 /*
      2  * Copyright 2014, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _FRAMEWORKS_COMPILE_SLANG_RS_CC_OPTIONS_H_  // NOLINT
     18 #define _FRAMEWORKS_COMPILE_SLANG_RS_CC_OPTIONS_H_
     19 
     20 #include "llvm/Option/ArgList.h"
     21 #include "llvm/Option/Option.h"
     22 #include "llvm/Option/OptTable.h"
     23 
     24 #include "slang.h"
     25 #include "slang_rs_reflect_utils.h"
     26 
     27 #include <string>
     28 #include <vector>
     29 
     30 namespace llvm {
     31 namespace cl {
     32 class StringSaver;
     33 }
     34 namespace opt {
     35 class OptTable;
     36 }
     37 }
     38 
     39 namespace slang {
     40 
     41 // Options for the RenderScript compiler llvm-rs-cc
     42 class RSCCOptions {
     43  public:
     44   // User-defined include paths.
     45   std::vector<std::string> mIncludePaths;
     46 
     47   // The output directory for writing the bitcode files
     48   // (i.e. out/target/common/obj/APPS/.../src/renderscript/res/raw).
     49   std::string mBitcodeOutputDir;
     50 
     51   // Type of file to emit (bitcode, dependency, ...).
     52   slang::Slang::OutputType mOutputType;
     53 
     54   // Allow user-defined functions prefixed with 'rs'.
     55   bool mAllowRSPrefix;
     56 
     57   // 32-bit or 64-bit target
     58   uint32_t mBitWidth;
     59 
     60   // The path for storing reflected Java source files
     61   // (i.e. out/target/common/obj/APPS/.../src/renderscript/src).
     62   std::string mJavaReflectionPathBase;
     63 
     64   // Force package name. This may override the package name specified by a
     65   // #pragma in the .rs file.
     66   std::string mJavaReflectionPackageName;
     67 
     68   // Force the RS package name to use. This can override the default value of
     69   // "android.renderscript" used for the standard RS APIs.
     70   std::string mRSPackageName;
     71 
     72   // Where to store the generated bitcode (resource, Java source, C++ source).
     73   slang::BitCodeStorageType mBitcodeStorage;
     74 
     75   // Emit output dependency file for each input file.
     76   bool mEmitDependency;
     77 
     78   // The output directory for writing dependency files
     79   // (i.e. out/target/common/obj/APPS/.../src/renderscript).
     80   std::string mDependencyOutputDir;
     81 
     82   // User-defined files added to the dependencies (i.e. for adding fake
     83   // dependency files like RenderScript.stamp).
     84   std::vector<std::string> mAdditionalDepTargets;
     85 
     86   bool mShowHelp;     // Show the -help text.
     87   bool mShowVersion;  // Show the -version text.
     88 
     89   // The target API we are generating code for (see slang_version.h).
     90   unsigned int mTargetAPI;
     91 
     92   // Enable emission of debugging symbols.
     93   bool mDebugEmission;
     94 
     95   // The optimization level used in CodeGen, and encoded in emitted bitcode.
     96   llvm::CodeGenOpt::Level mOptimizationLevel;
     97 
     98   // Display verbose information about the compilation on stdout.
     99   bool mVerbose;
    100 
    101   // Emit both 32-bit and 64-bit bitcode (embedded in the reflected sources).
    102   bool mEmit3264;
    103 
    104   RSCCOptions() {
    105     mOutputType = slang::Slang::OT_Bitcode;
    106     mBitWidth = 32;
    107     mBitcodeStorage = slang::BCST_APK_RESOURCE;
    108     mEmitDependency = 0;
    109     mShowHelp = 0;
    110     mShowVersion = 0;
    111     mTargetAPI = RS_VERSION;
    112     mDebugEmission = 0;
    113     mOptimizationLevel = llvm::CodeGenOpt::Aggressive;
    114     mVerbose = false;
    115     mEmit3264 = false;
    116   }
    117 };
    118 
    119 /* Return a valid OptTable (useful for dumping help information)
    120  */
    121 llvm::opt::OptTable *createRSCCOptTable();
    122 
    123 /* Parse ArgVector and return a list of Inputs (source files) and Opts
    124  * (options affecting the compilation of those source files).
    125  *
    126  * \param ArgVector - the input arguments to llvm-rs-cc
    127  * \param Inputs - returned list of actual input source filenames
    128  * \param Opts - returned options after command line has been processed
    129  * \param DiagEngine - input for issuing warnings/errors on arguments
    130  */
    131 
    132 bool ParseArguments(const llvm::ArrayRef<const char *> &ArgsIn,
    133                     llvm::SmallVectorImpl<const char *> &Inputs,
    134                     RSCCOptions &Opts, clang::DiagnosticOptions &DiagOpts,
    135                     llvm::cl::StringSaver &StringSaver);
    136 
    137 } // namespace slang
    138 
    139 #endif  // _FRAMEWORKS_COMPILE_SLANG_RS_CC_OPTIONS_H_
    140