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      1 /*
      2  * Copyright 2012, 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 BCC_RS_SCRIPT_H
     18 #define BCC_RS_SCRIPT_H
     19 
     20 #include "bcc/Script.h"
     21 #include "bcc/Support/Sha1Util.h"
     22 
     23 namespace llvm {
     24   class Module;
     25 }  // end namespace llvm
     26 
     27 namespace bcc {
     28 
     29 class RSInfo;
     30 class RSScript;
     31 class Source;
     32 
     33 typedef llvm::Module* (*RSLinkRuntimeCallback) (bcc::RSScript *, llvm::Module *, llvm::Module *);
     34 
     35 class RSScript : public Script {
     36 public:
     37   // This is one-one mapping with the llvm::CodeGenOpt::Level in
     38   // llvm/Support/CodeGen.h. Therefore, value of this type can safely cast
     39   // to llvm::CodeGenOpt::Level. This makes RSScript LLVM-free.
     40   enum OptimizationLevel {
     41     kOptLvl0, // -O0
     42     kOptLvl1, // -O1
     43     kOptLvl2, // -O2, -Os
     44     kOptLvl3  // -O3
     45   };
     46 
     47 private:
     48   const RSInfo *mInfo;
     49 
     50   unsigned mCompilerVersion;
     51 
     52   OptimizationLevel mOptimizationLevel;
     53 
     54   RSLinkRuntimeCallback mLinkRuntimeCallback;
     55 
     56   bool mEmbedInfo;
     57 
     58 private:
     59   // This will be invoked when the containing source has been reset.
     60   virtual bool doReset();
     61 
     62 public:
     63   static bool LinkRuntime(RSScript &pScript, const char *rt_path = NULL);
     64 
     65   RSScript(Source &pSource);
     66 
     67   // Set the associated RSInfo of the script.
     68   void setInfo(const RSInfo *pInfo) {
     69     mInfo = pInfo;
     70   }
     71 
     72   const RSInfo *getInfo() const {
     73     return mInfo;
     74   }
     75 
     76   void setCompilerVersion(unsigned pCompilerVersion) {
     77     mCompilerVersion = pCompilerVersion;
     78   }
     79 
     80   unsigned getCompilerVersion() const {
     81     return mCompilerVersion;
     82   }
     83 
     84   void setOptimizationLevel(OptimizationLevel pOptimizationLevel) {
     85     mOptimizationLevel = pOptimizationLevel;
     86   }
     87 
     88   OptimizationLevel getOptimizationLevel() const {
     89     return mOptimizationLevel;
     90   }
     91 
     92   void setLinkRuntimeCallback(RSLinkRuntimeCallback fn){
     93     mLinkRuntimeCallback = fn;
     94   }
     95 
     96   void setEmbedInfo(bool pEnable) {
     97     mEmbedInfo = pEnable;
     98   }
     99 
    100   bool getEmbedInfo() const {
    101     return mEmbedInfo;
    102   }
    103 };
    104 
    105 } // end namespace bcc
    106 
    107 #endif // BCC_RS_SCRIPT_H
    108