rtems-tools/tester/covoar/CoverageReaderTSIM.cc

/*! @file CoverageReaderTSIM.cc
 *  @brief CoverageReaderTSIM Implementation
 *
 *  This file contains the implementation of the CoverageReader class
 *  for the coverage files written by the SPARC simulator TSIM.
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>

#include "app_common.h"
#include "CoverageReaderTSIM.h"
#include "CoverageMap.h"
#include "ExecutableInfo.h"

namespace Coverage {

  CoverageReaderTSIM::CoverageReaderTSIM()
  {

  }

  CoverageReaderTSIM::~CoverageReaderTSIM()
  {
  }

  void CoverageReaderTSIM::processFile(
    const char* const     file,
    ExecutableInfo* const executableInformation
  )
  {
    CoverageMapBase* aCoverageMap = NULL;
    int              baseAddress;
    int              cover;
    FILE*            coverageFile;
    int              i;
    int              status;

    //
    // Open the coverage file.
    //
    coverageFile = fopen( file, "r" );
    if (!coverageFile) {
      fprintf(
        stderr,
        "ERROR: CoverageReaderTSIM::processFile - Unable to open %s\n",
        file
      );
      exit( -1 );
    }

    //
    // Read and process each line of the coverage file.
    //
    while ( 1 ) {
      status = fscanf( coverageFile, "%x : ", &baseAddress );
      if (status == EOF || status == 0) {
        break;
      }

      for (i=0; i < 0x80; i+=4) {
        unsigned int a;
        status = fscanf( coverageFile, "%x", &cover );
	if (status == EOF || status == 0) {
          fprintf(
            stderr,
            "CoverageReaderTSIM: WARNING! Short line in %s at address 0x%08x\n",
            file,
            baseAddress
          );
          break;
	}

        //
        // Obtain the coverage map containing the address and
        // mark the address as executed.
        //
	a = baseAddress + i;
	aCoverageMap = executableInformation->getCoverageMap( a );
        if ( !aCoverageMap )
          continue;
        if ( cover & 0x01 ) {
          aCoverageMap->setWasExecuted( a );
          aCoverageMap->setWasExecuted( a + 1 );
          aCoverageMap->setWasExecuted( a + 2 );
          aCoverageMap->setWasExecuted( a + 3 );
          if ( cover & 0x08 ) {
	    aCoverageMap->setWasTaken( a );
	    BranchInfoAvailable = true;
          }
          if ( cover & 0x10 ) {
	    aCoverageMap->setWasNotTaken( a );
	    BranchInfoAvailable = true;
          }
        }
      }
    }

    fclose( coverageFile );
  }
}