The early call to child->step() was removed earlier because it confused the new differences-only protocol ARM sendState() was using. It's necessary that that gets called at least once before attempting to print the initial stack frame, though, because otherwise statetrace doesn't know what the stack pointer is. By putting the first call to child->step() in a common spot, both needs are met.
175 lines
5.1 KiB
C++
175 lines
5.1 KiB
C++
/*
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* Copyright (c) 2006-2007 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Gabe Black
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*/
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#include <cstring>
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#include <errno.h>
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#include <fstream>
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#include <iostream>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <string>
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#include <sys/ptrace.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "printer.hh"
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#include "tracechild.hh"
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using namespace std;
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void printUsage(const char * execName)
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{
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cout << execName << " -h | -r -- <command> <arguments>" << endl;
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}
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int main(int argc, char * argv[], char * envp[])
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{
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TraceChild * child = genTraceChild();
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string args;
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int startProgramArgs;
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//Parse the command line arguments
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bool printInitial = false;
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bool printTrace = true;
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string host = "localhost";
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for(int x = 1; x < argc; x++)
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{
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if(!strcmp(argv[x], "-h"))
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{
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printUsage(argv[0]);
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return 0;
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}
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if(!strcmp(argv[x], "--host"))
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{
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x++;
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if(x >= argc)
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{
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cerr << "Incorrect usage.\n" << endl;
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printUsage(argv[0]);
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return 1;
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}
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host = argv[x];
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}
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else if(!strcmp(argv[x], "-r"))
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{
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cout << "Legal register names:" << endl;
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int numRegs = child->getNumRegs();
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for(unsigned int x = 0; x < numRegs; x++)
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{
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cout << "\t" << child->getRegName(x) << endl;
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}
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return 0;
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}
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else if(!strcmp(argv[x], "-i"))
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{
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printInitial = true;
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}
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else if(!strcmp(argv[x], "-nt"))
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{
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printTrace = false;
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}
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else if(!strcmp(argv[x], "--"))
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{
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x++;
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if(x >= argc)
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{
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cerr << "Incorrect usage.\n" << endl;
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printUsage(argv[0]);
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return 1;
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}
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startProgramArgs = x;
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break;
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}
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else
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{
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cerr << "Incorrect usage.\n" << endl;
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printUsage(argv[0]);
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return 1;
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}
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}
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if(!child->startTracing(argv[startProgramArgs],
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argv + startProgramArgs))
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{
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cerr << "Couldn't start target program" << endl;
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return 1;
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}
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child->step();
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if(printInitial)
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{
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child->outputStartState(cout);
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}
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if(printTrace)
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{
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// Connect to m5
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bool portSet = false;
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int port;
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if(sock < 0)
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{
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cerr << "Error opening socket! " << strerror(errno) << endl;
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return 1;
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}
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struct hostent *server;
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server = gethostbyname(host.c_str());
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if(!server)
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{
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cerr << "Couldn't get host ip! " << strerror(errno) << endl;
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return 1;
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}
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struct sockaddr_in serv_addr;
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bzero((char *)&serv_addr, sizeof(serv_addr));
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serv_addr.sin_family = AF_INET;
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bcopy((char *)server->h_addr,
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(char *)&serv_addr.sin_addr.s_addr,
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server->h_length);
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serv_addr.sin_port = htons(8000);
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if(connect(sock, (sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
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{
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cerr << "Couldn't connect to server! " << strerror(errno) << endl;
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return 1;
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}
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while(child->isTracing())
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{
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if(!child->sendState(sock))
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break;
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child->step();
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}
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}
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if(!child->stopTracing())
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{
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cerr << "Couldn't stop child" << endl;
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return 1;
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}
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return 0;
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}
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