gem5/util/statetrace/tracechild.cc

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Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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/*
* Copyright (c) 2006-2007 The Regents of The University of Michigan
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#include "tracechild.hh"
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#include <cstring>
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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#include <errno.h>
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#include <iostream>
#include <sys/ptrace.h>
#include <sys/wait.h>
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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using namespace std;
bool TraceChild::startTracing(const char * pathToFile, char * const argv[])
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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{
instructions = 0;
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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pid = fork();
if(pid == -1)
{
cout << "fork failed" << endl;
return false;
}
else if(pid == 0)
{
//We're the child. Get things ready and then exec the
//program to trace.
//Let our parent trace us
if(ptrace(PTRACE_TRACEME, 0, 0, 0) == -1)
{
cout << "Failure calling TRACEME\n";
cout << strerror(errno) << endl;
return false;
}
//Set up an empty environment for the child...
//We would want to specify this somehow at some point
char * env[] = {NULL};
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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//Start the program to trace
execve(pathToFile, argv, env);
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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//We should never get here, so this is an error!
cout << "Exec failed\n";
cout << strerror(errno) << endl;
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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return false;
}
//From this point forward, we know we're in the parent process.
if(!doWait())
{
cout << "Didn't wait successfully" << endl;
return false;
}
tracing = true;
return true;
}
bool TraceChild::stopTracing()
{
if(ptrace(PTRACE_KILL, pid, 0, 0) != 0)
return false;
tracing = false;
return true;
}
bool TraceChild::step()
{
ptraceSingleStep();
}
bool TraceChild::ptraceSingleStep()
{
if(!tracing)
{
cout << "Not tracing!" << endl;
return false;
}
if(ptrace(PTRACE_SINGLESTEP, pid, 0, 0) != 0)
{
switch(errno)
{
case EBUSY: cout << "EBUSY" << endl; break;
case EFAULT: cout << "EFAULT" << endl; break;
case EIO: cout << "EIO" << endl; break;
case EPERM: cout << "EPERM" << endl; break;
case ESRCH: cout << "ESRCH" << endl; break;
default: cout << "Unknown error" << endl; break;
}
cout << "Not able to single step!" << endl;
tracing == false;
return false;
}
doWait();
update(pid);
}
bool TraceChild::doWait()
{
int wait_val;
wait(&wait_val);
if(WIFEXITED(wait_val))
{
cerr << "Program exited! Exit status is "
<< WEXITSTATUS(wait_val) << endl;
cerr << "Executed " << instructions
<< " instructions." << endl;
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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tracing = false;
return false;
}
if(WIFSIGNALED(wait_val))
{
if(WTERMSIG(wait_val))
cerr << "Program terminated by signal "
<< WTERMSIG(wait_val) << endl;
if(WCOREDUMP(wait_val))
cerr << "Program core dumped!" << endl;
tracing = false;
cerr << "Executed " << instructions
<< " instructions." << endl;
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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return false;
}
if(WIFSTOPPED(wait_val) && WSTOPSIG(wait_val) != SIGTRAP)
{
cerr << "Program stopped by signal "
<< WSTOPSIG(wait_val) << endl;
tracing = false;
cerr << "Executed " << instructions
<< " instructions." << endl;
Adding what was tracedump but is now statetrace to the tree. Let me know if statetrace is also already taken. util/statetrace/Makefile: Makefile to build statetrace. Targets are: statetrace: alias to build using the "native" compiler statetrace-native: use the native compiler statetrace-sparc: use the sparc cross compiler I'll make this a little more fancy and capable later. util/statetrace/arch/tracechild_i386.cc: Implementation of i386 support util/statetrace/arch/tracechild_i386.hh: Declaration of i386 support util/statetrace/arch/tracechild_sparc.cc: implementation of SPARC support util/statetrace/arch/tracechild_sparc.hh: declaration of SPARC support util/statetrace/printer.cc: Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively. util/statetrace/printer.hh: Declaration of "Printer" objects util/statetrace/refcnt.hh: This is copied from m5. I should use the one already in the tree, but I'll do that later. util/statetrace/regstate.hh: Interface for accessing registers. util/statetrace/statetrace.cc: Main file with argument parsing and the "main" function which contains the tracing loop. util/statetrace/tracechild.cc: Implementation of the base tracechild class. util/statetrace/tracechild.hh: Declaration of the base tracechild class. util/statetrace/tracechild_arch.cc: This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface. util/statetrace/x86.format: An example output template for x86. A few example SPARC templates will be added later. --HG-- extra : convert_revision : 7c8bf8230907aba42ed1e707b9ca2d6da0d4e6d4
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return false;
}
return true;
}