process.cc revision 5958
12SN/A/* 21762SN/A * Copyright (c) 2001-2005 The Regents of The University of Michigan 32SN/A * All rights reserved. 42SN/A * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 292665Ssaidi@eecs.umich.edu * Steve Reinhardt 302665Ssaidi@eecs.umich.edu * Ali Saidi 312SN/A */ 322SN/A 332SN/A#include <unistd.h> 342SN/A#include <fcntl.h> 352SN/A#include <string> 362SN/A 373971Sgblack@eecs.umich.edu#include "arch/remote_gdb.hh" 3856SN/A#include "base/intmath.hh" 3956SN/A#include "base/loader/object_file.hh" 401158SN/A#include "base/loader/symtab.hh" 41146SN/A#include "base/statistics.hh" 421858SN/A#include "config/full_system.hh" 432680Sktlim@umich.edu#include "cpu/thread_context.hh" 442378SN/A#include "mem/page_table.hh" 452522SN/A#include "mem/physical.hh" 462401SN/A#include "mem/translating_port.hh" 475154Sgblack@eecs.umich.edu#include "params/Process.hh" 484762Snate@binkert.org#include "params/LiveProcess.hh" 495512SMichael.Adler@intel.com#include "sim/debug.hh" 50360SN/A#include "sim/process.hh" 514434Ssaidi@eecs.umich.edu#include "sim/process_impl.hh" 52695SN/A#include "sim/stats.hh" 532093SN/A#include "sim/syscall_emul.hh" 542378SN/A#include "sim/system.hh" 552SN/A 562715Sstever@eecs.umich.edu#include "arch/isa_specific.hh" 572715Sstever@eecs.umich.edu#if THE_ISA == ALPHA_ISA 582715Sstever@eecs.umich.edu#include "arch/alpha/linux/process.hh" 592715Sstever@eecs.umich.edu#include "arch/alpha/tru64/process.hh" 602715Sstever@eecs.umich.edu#elif THE_ISA == SPARC_ISA 612715Sstever@eecs.umich.edu#include "arch/sparc/linux/process.hh" 622715Sstever@eecs.umich.edu#include "arch/sparc/solaris/process.hh" 632715Sstever@eecs.umich.edu#elif THE_ISA == MIPS_ISA 642715Sstever@eecs.umich.edu#include "arch/mips/linux/process.hh" 655335Shines@cs.fsu.edu#elif THE_ISA == ARM_ISA 665335Shines@cs.fsu.edu#include "arch/arm/linux/process.hh" 674157Sgblack@eecs.umich.edu#elif THE_ISA == X86_ISA 684166Sgblack@eecs.umich.edu#include "arch/x86/linux/process.hh" 692715Sstever@eecs.umich.edu#else 702715Sstever@eecs.umich.edu#error "THE_ISA not set" 712715Sstever@eecs.umich.edu#endif 722715Sstever@eecs.umich.edu 732715Sstever@eecs.umich.edu 742SN/Ausing namespace std; 752107SN/Ausing namespace TheISA; 762SN/A 772SN/A// 782SN/A// The purpose of this code is to fake the loader & syscall mechanism 792SN/A// when there's no OS: thus there's no resone to use it in FULL_SYSTEM 802SN/A// mode when we do have an OS 812SN/A// 821858SN/A#if FULL_SYSTEM 83360SN/A#error "process.cc not compatible with FULL_SYSTEM" 842SN/A#endif 852SN/A 862SN/A// current number of allocated processes 872SN/Aint num_processes = 0; 882SN/A 895758Shsul@eecs.umich.edutemplate<class IntType> 905771Shsul@eecs.umich.eduAuxVector<IntType>::AuxVector(IntType type, IntType val) 915758Shsul@eecs.umich.edu{ 925758Shsul@eecs.umich.edu a_type = TheISA::htog(type); 935758Shsul@eecs.umich.edu a_val = TheISA::htog(val); 945758Shsul@eecs.umich.edu} 955758Shsul@eecs.umich.edu 965771Shsul@eecs.umich.edutemplate class AuxVector<uint32_t>; 975771Shsul@eecs.umich.edutemplate class AuxVector<uint64_t>; 985758Shsul@eecs.umich.edu 995154Sgblack@eecs.umich.eduProcess::Process(ProcessParams * params) 1005183Ssaidi@eecs.umich.edu : SimObject(params), system(params->system), checkpointRestored(false), 1015154Sgblack@eecs.umich.edu max_stack_size(params->max_stack_size) 1022SN/A{ 1035154Sgblack@eecs.umich.edu string in = params->input; 1045154Sgblack@eecs.umich.edu string out = params->output; 1055514SMichael.Adler@intel.com string err = params->errout; 1065154Sgblack@eecs.umich.edu 1075154Sgblack@eecs.umich.edu // initialize file descriptors to default: same as simulator 1085154Sgblack@eecs.umich.edu int stdin_fd, stdout_fd, stderr_fd; 1095154Sgblack@eecs.umich.edu 1105154Sgblack@eecs.umich.edu if (in == "stdin" || in == "cin") 1115154Sgblack@eecs.umich.edu stdin_fd = STDIN_FILENO; 1125154Sgblack@eecs.umich.edu else if (in == "None") 1135154Sgblack@eecs.umich.edu stdin_fd = -1; 1145154Sgblack@eecs.umich.edu else 1155154Sgblack@eecs.umich.edu stdin_fd = Process::openInputFile(in); 1165154Sgblack@eecs.umich.edu 1175154Sgblack@eecs.umich.edu if (out == "stdout" || out == "cout") 1185154Sgblack@eecs.umich.edu stdout_fd = STDOUT_FILENO; 1195154Sgblack@eecs.umich.edu else if (out == "stderr" || out == "cerr") 1205154Sgblack@eecs.umich.edu stdout_fd = STDERR_FILENO; 1215154Sgblack@eecs.umich.edu else if (out == "None") 1225154Sgblack@eecs.umich.edu stdout_fd = -1; 1235154Sgblack@eecs.umich.edu else 1245154Sgblack@eecs.umich.edu stdout_fd = Process::openOutputFile(out); 1255154Sgblack@eecs.umich.edu 1265514SMichael.Adler@intel.com if (err == "stdout" || err == "cout") 1275514SMichael.Adler@intel.com stderr_fd = STDOUT_FILENO; 1285514SMichael.Adler@intel.com else if (err == "stderr" || err == "cerr") 1295514SMichael.Adler@intel.com stderr_fd = STDERR_FILENO; 1305514SMichael.Adler@intel.com else if (err == "None") 1315514SMichael.Adler@intel.com stderr_fd = -1; 1325514SMichael.Adler@intel.com else if (err == out) 1335514SMichael.Adler@intel.com stderr_fd = stdout_fd; 1345514SMichael.Adler@intel.com else 1355514SMichael.Adler@intel.com stderr_fd = Process::openOutputFile(err); 1365154Sgblack@eecs.umich.edu 1374997Sgblack@eecs.umich.edu M5_pid = system->allocatePID(); 1382SN/A // initialize first 3 fds (stdin, stdout, stderr) 1395282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[STDIN_FILENO]; 1405282Srstrong@cs.ucsd.edu fdo->fd = stdin_fd; 1415282Srstrong@cs.ucsd.edu fdo->filename = in; 1425282Srstrong@cs.ucsd.edu fdo->flags = O_RDONLY; 1435282Srstrong@cs.ucsd.edu fdo->mode = -1; 1445282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 1455282Srstrong@cs.ucsd.edu 1465282Srstrong@cs.ucsd.edu fdo = &fd_map[STDOUT_FILENO]; 1475282Srstrong@cs.ucsd.edu fdo->fd = stdout_fd; 1485282Srstrong@cs.ucsd.edu fdo->filename = out; 1495282Srstrong@cs.ucsd.edu fdo->flags = O_WRONLY | O_CREAT | O_TRUNC; 1505282Srstrong@cs.ucsd.edu fdo->mode = 0774; 1515282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 1525282Srstrong@cs.ucsd.edu 1535282Srstrong@cs.ucsd.edu fdo = &fd_map[STDERR_FILENO]; 1545282Srstrong@cs.ucsd.edu fdo->fd = stderr_fd; 1555514SMichael.Adler@intel.com fdo->filename = err; 1565282Srstrong@cs.ucsd.edu fdo->flags = O_WRONLY; 1575282Srstrong@cs.ucsd.edu fdo->mode = -1; 1585282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 1595282Srstrong@cs.ucsd.edu 1602SN/A 1612SN/A // mark remaining fds as free 1622SN/A for (int i = 3; i <= MAX_FD; ++i) { 1635282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[i]; 1645282Srstrong@cs.ucsd.edu fdo->fd = -1; 1652SN/A } 1662SN/A 1671450SN/A mmap_start = mmap_end = 0; 1681514SN/A nxm_start = nxm_end = 0; 1695184Sgblack@eecs.umich.edu pTable = new PageTable(this); 1702SN/A // other parameters will be initialized when the program is loaded 1712SN/A} 1722SN/A 1732378SN/A 1742SN/Avoid 1752SN/AProcess::regStats() 1762SN/A{ 177729SN/A using namespace Stats; 1782SN/A 1792SN/A num_syscalls 1802SN/A .name(name() + ".PROG:num_syscalls") 1812SN/A .desc("Number of system calls") 1822SN/A ; 1832SN/A} 1842SN/A 1852SN/A// 1862SN/A// static helper functions 1872SN/A// 1882SN/Aint 1892SN/AProcess::openInputFile(const string &filename) 1902SN/A{ 1912SN/A int fd = open(filename.c_str(), O_RDONLY); 1922SN/A 1932SN/A if (fd == -1) { 1942SN/A perror(NULL); 1952SN/A cerr << "unable to open \"" << filename << "\" for reading\n"; 1962SN/A fatal("can't open input file"); 1972SN/A } 1982SN/A 1992SN/A return fd; 2002SN/A} 2012SN/A 2022SN/A 2032SN/Aint 2042SN/AProcess::openOutputFile(const string &filename) 2052SN/A{ 2065514SMichael.Adler@intel.com int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); 2072SN/A 2082SN/A if (fd == -1) { 2092SN/A perror(NULL); 2102SN/A cerr << "unable to open \"" << filename << "\" for writing\n"; 2112SN/A fatal("can't open output file"); 2122SN/A } 2132SN/A 2142SN/A return fd; 2152SN/A} 2162SN/A 2175713Shsul@eecs.umich.eduThreadContext * 2185713Shsul@eecs.umich.eduProcess::findFreeContext() 2192SN/A{ 2205713Shsul@eecs.umich.edu int size = contextIds.size(); 2215713Shsul@eecs.umich.edu ThreadContext *tc; 2225713Shsul@eecs.umich.edu for (int i = 0; i < size; ++i) { 2235713Shsul@eecs.umich.edu tc = system->getThreadContext(contextIds[i]); 2245713Shsul@eecs.umich.edu if (tc->status() == ThreadContext::Unallocated) { 2255713Shsul@eecs.umich.edu // inactive context, free to use 2265713Shsul@eecs.umich.edu return tc; 2275713Shsul@eecs.umich.edu } 2285512SMichael.Adler@intel.com } 2295713Shsul@eecs.umich.edu return NULL; 2302SN/A} 2312SN/A 2321395SN/Avoid 2331395SN/AProcess::startup() 2341395SN/A{ 2355713Shsul@eecs.umich.edu if (contextIds.empty()) 2365713Shsul@eecs.umich.edu fatal("Process %s is not associated with any HW contexts!\n", name()); 2372378SN/A 2382680Sktlim@umich.edu // first thread context for this process... initialize & enable 2395713Shsul@eecs.umich.edu ThreadContext *tc = system->getThreadContext(contextIds[0]); 2401395SN/A 2411634SN/A // mark this context as active so it will start ticking. 2422680Sktlim@umich.edu tc->activate(0); 2432462SN/A 2442519SN/A Port *mem_port; 2452519SN/A mem_port = system->physmem->getPort("functional"); 2464434Ssaidi@eecs.umich.edu initVirtMem = new TranslatingPort("process init port", this, 2474434Ssaidi@eecs.umich.edu TranslatingPort::Always); 2482519SN/A mem_port->setPeer(initVirtMem); 2492519SN/A initVirtMem->setPeer(mem_port); 2501395SN/A} 2512SN/A 2522SN/A// map simulator fd sim_fd to target fd tgt_fd 2532SN/Avoid 2542SN/AProcess::dup_fd(int sim_fd, int tgt_fd) 2552SN/A{ 2562SN/A if (tgt_fd < 0 || tgt_fd > MAX_FD) 2572SN/A panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); 2582SN/A 2595282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[tgt_fd]; 2605282Srstrong@cs.ucsd.edu fdo->fd = sim_fd; 2612SN/A} 2622SN/A 2632SN/A 2642SN/A// generate new target fd for sim_fd 2652SN/Aint 2665282Srstrong@cs.ucsd.eduProcess::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe) 2672SN/A{ 2682SN/A // in case open() returns an error, don't allocate a new fd 2692SN/A if (sim_fd == -1) 2702SN/A return -1; 2712SN/A 2722SN/A // find first free target fd 2735282Srstrong@cs.ucsd.edu for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 2745282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[free_fd]; 2755282Srstrong@cs.ucsd.edu if (fdo->fd == -1) { 2765282Srstrong@cs.ucsd.edu fdo->fd = sim_fd; 2775282Srstrong@cs.ucsd.edu fdo->filename = filename; 2785282Srstrong@cs.ucsd.edu fdo->mode = mode; 2795282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 2805282Srstrong@cs.ucsd.edu fdo->flags = flags; 2815282Srstrong@cs.ucsd.edu fdo->isPipe = pipe; 2825282Srstrong@cs.ucsd.edu fdo->readPipeSource = 0; 2831970SN/A return free_fd; 2841970SN/A } 2852SN/A } 2862SN/A 2871970SN/A panic("Process::alloc_fd: out of file descriptors!"); 2881970SN/A} 2892SN/A 2901970SN/A 2911970SN/A// free target fd (e.g., after close) 2921970SN/Avoid 2931970SN/AProcess::free_fd(int tgt_fd) 2941970SN/A{ 2955282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[tgt_fd]; 2965282Srstrong@cs.ucsd.edu if (fdo->fd == -1) 2971970SN/A warn("Process::free_fd: request to free unused fd %d", tgt_fd); 2981970SN/A 2995282Srstrong@cs.ucsd.edu fdo->fd = -1; 3005282Srstrong@cs.ucsd.edu fdo->filename = "NULL"; 3015282Srstrong@cs.ucsd.edu fdo->mode = 0; 3025282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 3035282Srstrong@cs.ucsd.edu fdo->flags = 0; 3045282Srstrong@cs.ucsd.edu fdo->isPipe = false; 3055282Srstrong@cs.ucsd.edu fdo->readPipeSource = 0; 3062SN/A} 3072SN/A 3082SN/A 3092SN/A// look up simulator fd for given target fd 3102SN/Aint 3112SN/AProcess::sim_fd(int tgt_fd) 3122SN/A{ 3132SN/A if (tgt_fd > MAX_FD) 3142SN/A return -1; 3152SN/A 3165282Srstrong@cs.ucsd.edu return fd_map[tgt_fd].fd; 3172SN/A} 3182SN/A 3195282Srstrong@cs.ucsd.eduProcess::FdMap * 3205282Srstrong@cs.ucsd.eduProcess::sim_fd_obj(int tgt_fd) 3215282Srstrong@cs.ucsd.edu{ 3225282Srstrong@cs.ucsd.edu if (tgt_fd > MAX_FD) 3235282Srstrong@cs.ucsd.edu panic("sim_fd_obj called in fd out of range."); 3245282Srstrong@cs.ucsd.edu 3255282Srstrong@cs.ucsd.edu return &fd_map[tgt_fd]; 3265282Srstrong@cs.ucsd.edu} 3274434Ssaidi@eecs.umich.edubool 3284434Ssaidi@eecs.umich.eduProcess::checkAndAllocNextPage(Addr vaddr) 3294434Ssaidi@eecs.umich.edu{ 3304434Ssaidi@eecs.umich.edu // if this is an initial write we might not have 3314434Ssaidi@eecs.umich.edu if (vaddr >= stack_min && vaddr < stack_base) { 3324434Ssaidi@eecs.umich.edu pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize); 3334434Ssaidi@eecs.umich.edu return true; 3344434Ssaidi@eecs.umich.edu } 3354434Ssaidi@eecs.umich.edu 3364434Ssaidi@eecs.umich.edu // We've accessed the next page of the stack, so extend the stack 3374434Ssaidi@eecs.umich.edu // to cover it. 3385154Sgblack@eecs.umich.edu if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 3395154Sgblack@eecs.umich.edu while (vaddr < stack_min) { 3405154Sgblack@eecs.umich.edu stack_min -= TheISA::PageBytes; 3415154Sgblack@eecs.umich.edu if(stack_base - stack_min > max_stack_size) 3425154Sgblack@eecs.umich.edu fatal("Maximum stack size exceeded\n"); 3435154Sgblack@eecs.umich.edu if(stack_base - stack_min > 8*1024*1024) 3445154Sgblack@eecs.umich.edu fatal("Over max stack size for one thread\n"); 3455154Sgblack@eecs.umich.edu pTable->allocate(stack_min, TheISA::PageBytes); 3465823Ssaidi@eecs.umich.edu inform("Increasing stack size by one page."); 3475154Sgblack@eecs.umich.edu }; 3484434Ssaidi@eecs.umich.edu return true; 3494434Ssaidi@eecs.umich.edu } 3504434Ssaidi@eecs.umich.edu return false; 3514434Ssaidi@eecs.umich.edu} 3524434Ssaidi@eecs.umich.edu 3535282Srstrong@cs.ucsd.edu // find all offsets for currently open files and save them 3545282Srstrong@cs.ucsd.eduvoid 3555282Srstrong@cs.ucsd.eduProcess::fix_file_offsets() { 3565282Srstrong@cs.ucsd.edu Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; 3575282Srstrong@cs.ucsd.edu Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO]; 3585282Srstrong@cs.ucsd.edu Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; 3595282Srstrong@cs.ucsd.edu string in = fdo_stdin->filename; 3605282Srstrong@cs.ucsd.edu string out = fdo_stdout->filename; 3615514SMichael.Adler@intel.com string err = fdo_stderr->filename; 3625282Srstrong@cs.ucsd.edu 3635282Srstrong@cs.ucsd.edu // initialize file descriptors to default: same as simulator 3645282Srstrong@cs.ucsd.edu int stdin_fd, stdout_fd, stderr_fd; 3655282Srstrong@cs.ucsd.edu 3665282Srstrong@cs.ucsd.edu if (in == "stdin" || in == "cin") 3675282Srstrong@cs.ucsd.edu stdin_fd = STDIN_FILENO; 3685282Srstrong@cs.ucsd.edu else if (in == "None") 3695282Srstrong@cs.ucsd.edu stdin_fd = -1; 3705282Srstrong@cs.ucsd.edu else{ 3715282Srstrong@cs.ucsd.edu //OPEN standard in and seek to the right location 3725282Srstrong@cs.ucsd.edu stdin_fd = Process::openInputFile(in); 3735282Srstrong@cs.ucsd.edu if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0) 3745282Srstrong@cs.ucsd.edu panic("Unable to seek to correct location in file: %s", in); 3755282Srstrong@cs.ucsd.edu } 3765282Srstrong@cs.ucsd.edu 3775282Srstrong@cs.ucsd.edu if (out == "stdout" || out == "cout") 3785282Srstrong@cs.ucsd.edu stdout_fd = STDOUT_FILENO; 3795282Srstrong@cs.ucsd.edu else if (out == "stderr" || out == "cerr") 3805282Srstrong@cs.ucsd.edu stdout_fd = STDERR_FILENO; 3815282Srstrong@cs.ucsd.edu else if (out == "None") 3825282Srstrong@cs.ucsd.edu stdout_fd = -1; 3835282Srstrong@cs.ucsd.edu else{ 3845282Srstrong@cs.ucsd.edu stdout_fd = Process::openOutputFile(out); 3855514SMichael.Adler@intel.com if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) 3865514SMichael.Adler@intel.com panic("Unable to seek to correct location in file: %s", out); 3875282Srstrong@cs.ucsd.edu } 3885282Srstrong@cs.ucsd.edu 3895514SMichael.Adler@intel.com if (err == "stdout" || err == "cout") 3905514SMichael.Adler@intel.com stderr_fd = STDOUT_FILENO; 3915514SMichael.Adler@intel.com else if (err == "stderr" || err == "cerr") 3925514SMichael.Adler@intel.com stderr_fd = STDERR_FILENO; 3935514SMichael.Adler@intel.com else if (err == "None") 3945514SMichael.Adler@intel.com stderr_fd = -1; 3955514SMichael.Adler@intel.com else if (err == out) 3965514SMichael.Adler@intel.com stderr_fd = stdout_fd; 3975514SMichael.Adler@intel.com else { 3985514SMichael.Adler@intel.com stderr_fd = Process::openOutputFile(err); 3995514SMichael.Adler@intel.com if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) 4005514SMichael.Adler@intel.com panic("Unable to seek to correct location in file: %s", err); 4015514SMichael.Adler@intel.com } 4025282Srstrong@cs.ucsd.edu 4035282Srstrong@cs.ucsd.edu fdo_stdin->fd = stdin_fd; 4045282Srstrong@cs.ucsd.edu fdo_stdout->fd = stdout_fd; 4055282Srstrong@cs.ucsd.edu fdo_stderr->fd = stderr_fd; 4065282Srstrong@cs.ucsd.edu 4075282Srstrong@cs.ucsd.edu 4085282Srstrong@cs.ucsd.edu for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) { 4095282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[free_fd]; 4105282Srstrong@cs.ucsd.edu if (fdo->fd != -1) { 4115282Srstrong@cs.ucsd.edu if (fdo->isPipe){ 4125282Srstrong@cs.ucsd.edu if (fdo->filename == "PIPE-WRITE") 4135282Srstrong@cs.ucsd.edu continue; 4145282Srstrong@cs.ucsd.edu else { 4155282Srstrong@cs.ucsd.edu assert (fdo->filename == "PIPE-READ"); 4165282Srstrong@cs.ucsd.edu //create a new pipe 4175282Srstrong@cs.ucsd.edu int fds[2]; 4185282Srstrong@cs.ucsd.edu int pipe_retval = pipe(fds); 4195282Srstrong@cs.ucsd.edu 4205282Srstrong@cs.ucsd.edu if (pipe_retval < 0) { 4215282Srstrong@cs.ucsd.edu // error 4225282Srstrong@cs.ucsd.edu panic("Unable to create new pipe."); 4235282Srstrong@cs.ucsd.edu } 4245282Srstrong@cs.ucsd.edu fdo->fd = fds[0]; //set read pipe 4255282Srstrong@cs.ucsd.edu Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource]; 4265282Srstrong@cs.ucsd.edu if (fdo_write->filename != "PIPE-WRITE") 4275282Srstrong@cs.ucsd.edu panic ("Couldn't find write end of the pipe"); 4285282Srstrong@cs.ucsd.edu 4295282Srstrong@cs.ucsd.edu fdo_write->fd = fds[1];//set write pipe 4305282Srstrong@cs.ucsd.edu } 4315282Srstrong@cs.ucsd.edu } else { 4325282Srstrong@cs.ucsd.edu //Open file 4335282Srstrong@cs.ucsd.edu int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode); 4345282Srstrong@cs.ucsd.edu 4355282Srstrong@cs.ucsd.edu if (fd == -1) 4365282Srstrong@cs.ucsd.edu panic("Unable to open file: %s", fdo->filename); 4375282Srstrong@cs.ucsd.edu fdo->fd = fd; 4385282Srstrong@cs.ucsd.edu 4395282Srstrong@cs.ucsd.edu //Seek to correct location before checkpoint 4405282Srstrong@cs.ucsd.edu if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0) 4415282Srstrong@cs.ucsd.edu panic("Unable to seek to correct location in file: %s", fdo->filename); 4425282Srstrong@cs.ucsd.edu } 4435282Srstrong@cs.ucsd.edu } 4445282Srstrong@cs.ucsd.edu } 4455282Srstrong@cs.ucsd.edu} 4465282Srstrong@cs.ucsd.eduvoid 4475282Srstrong@cs.ucsd.eduProcess::find_file_offsets(){ 4485282Srstrong@cs.ucsd.edu for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 4495282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[free_fd]; 4505282Srstrong@cs.ucsd.edu if (fdo->fd != -1) { 4515282Srstrong@cs.ucsd.edu fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR); 4525282Srstrong@cs.ucsd.edu } else { 4535282Srstrong@cs.ucsd.edu fdo->filename = "NULL"; 4545282Srstrong@cs.ucsd.edu fdo->fileOffset = 0; 4555282Srstrong@cs.ucsd.edu } 4565282Srstrong@cs.ucsd.edu } 4575282Srstrong@cs.ucsd.edu} 4585282Srstrong@cs.ucsd.edu 4595282Srstrong@cs.ucsd.eduvoid 4605282Srstrong@cs.ucsd.eduProcess::setReadPipeSource(int read_pipe_fd, int source_fd){ 4615282Srstrong@cs.ucsd.edu Process::FdMap *fdo = &fd_map[read_pipe_fd]; 4625282Srstrong@cs.ucsd.edu fdo->readPipeSource = source_fd; 4635282Srstrong@cs.ucsd.edu} 4645282Srstrong@cs.ucsd.edu 4655282Srstrong@cs.ucsd.eduvoid 4665282Srstrong@cs.ucsd.eduProcess::FdMap::serialize(std::ostream &os) 4675282Srstrong@cs.ucsd.edu{ 4685282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(fd); 4695282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(isPipe); 4705282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(filename); 4715282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(flags); 4725282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(readPipeSource); 4735282Srstrong@cs.ucsd.edu SERIALIZE_SCALAR(fileOffset); 4745282Srstrong@cs.ucsd.edu} 4755282Srstrong@cs.ucsd.edu 4765282Srstrong@cs.ucsd.eduvoid 4775282Srstrong@cs.ucsd.eduProcess::FdMap::unserialize(Checkpoint *cp, const std::string §ion) 4785282Srstrong@cs.ucsd.edu{ 4795282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(fd); 4805282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(isPipe); 4815282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(filename); 4825282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(flags); 4835282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(readPipeSource); 4845282Srstrong@cs.ucsd.edu UNSERIALIZE_SCALAR(fileOffset); 4855282Srstrong@cs.ucsd.edu} 4865282Srstrong@cs.ucsd.edu 4873311Ssaidi@eecs.umich.eduvoid 4883311Ssaidi@eecs.umich.eduProcess::serialize(std::ostream &os) 4893311Ssaidi@eecs.umich.edu{ 4903311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(initialContextLoaded); 4913311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(brk_point); 4923311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(stack_base); 4933311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(stack_size); 4943311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(stack_min); 4953311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(next_thread_stack_base); 4963311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(mmap_start); 4973311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(mmap_end); 4983311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(nxm_start); 4993311Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(nxm_end); 5005282Srstrong@cs.ucsd.edu find_file_offsets(); 5015282Srstrong@cs.ucsd.edu pTable->serialize(os); 5025282Srstrong@cs.ucsd.edu for (int x = 0; x <= MAX_FD; x++) { 5035282Srstrong@cs.ucsd.edu nameOut(os, csprintf("%s.FdMap%d", name(), x)); 5045282Srstrong@cs.ucsd.edu fd_map[x].serialize(os); 5055282Srstrong@cs.ucsd.edu } 5063311Ssaidi@eecs.umich.edu 5073311Ssaidi@eecs.umich.edu} 5083311Ssaidi@eecs.umich.edu 5093311Ssaidi@eecs.umich.eduvoid 5103311Ssaidi@eecs.umich.eduProcess::unserialize(Checkpoint *cp, const std::string §ion) 5113311Ssaidi@eecs.umich.edu{ 5123311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(initialContextLoaded); 5133311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(brk_point); 5143311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(stack_base); 5153311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(stack_size); 5163311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(stack_min); 5173311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(next_thread_stack_base); 5183311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(mmap_start); 5193311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(mmap_end); 5203311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(nxm_start); 5213311Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(nxm_end); 5223311Ssaidi@eecs.umich.edu pTable->unserialize(cp, section); 5235282Srstrong@cs.ucsd.edu for (int x = 0; x <= MAX_FD; x++) { 5245282Srstrong@cs.ucsd.edu fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x)); 5255282Srstrong@cs.ucsd.edu } 5265282Srstrong@cs.ucsd.edu fix_file_offsets(); 5275183Ssaidi@eecs.umich.edu 5285183Ssaidi@eecs.umich.edu checkpointRestored = true; 5295183Ssaidi@eecs.umich.edu 5303311Ssaidi@eecs.umich.edu} 5312SN/A 5322SN/A 5332SN/A//////////////////////////////////////////////////////////////////////// 5342SN/A// 5352SN/A// LiveProcess member definitions 5362SN/A// 5372SN/A//////////////////////////////////////////////////////////////////////// 5382SN/A 53912SN/A 5405154Sgblack@eecs.umich.eduLiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile) 5415154Sgblack@eecs.umich.edu : Process(params), objFile(_objFile), 5425154Sgblack@eecs.umich.edu argv(params->cmd), envp(params->env), cwd(params->cwd) 5432SN/A{ 5445154Sgblack@eecs.umich.edu __uid = params->uid; 5455154Sgblack@eecs.umich.edu __euid = params->euid; 5465154Sgblack@eecs.umich.edu __gid = params->gid; 5475154Sgblack@eecs.umich.edu __egid = params->egid; 5485154Sgblack@eecs.umich.edu __pid = params->pid; 5495154Sgblack@eecs.umich.edu __ppid = params->ppid; 5503114Sgblack@eecs.umich.edu 5515154Sgblack@eecs.umich.edu prog_fname = params->cmd[0]; 55212SN/A 5531158SN/A // load up symbols, if any... these may be used for debugging or 5541158SN/A // profiling. 5551158SN/A if (!debugSymbolTable) { 5561158SN/A debugSymbolTable = new SymbolTable(); 5571158SN/A if (!objFile->loadGlobalSymbols(debugSymbolTable) || 5581158SN/A !objFile->loadLocalSymbols(debugSymbolTable)) { 5591158SN/A // didn't load any symbols 5601158SN/A delete debugSymbolTable; 5611158SN/A debugSymbolTable = NULL; 5621158SN/A } 5631158SN/A } 5642378SN/A} 5651158SN/A 5662378SN/Avoid 5672474SN/ALiveProcess::argsInit(int intSize, int pageSize) 5682378SN/A{ 5692378SN/A Process::startup(); 57012SN/A 5712378SN/A // load object file into target memory 5722378SN/A objFile->loadSections(initVirtMem); 57312SN/A 57412SN/A // Calculate how much space we need for arg & env arrays. 5752474SN/A int argv_array_size = intSize * (argv.size() + 1); 5762474SN/A int envp_array_size = intSize * (envp.size() + 1); 57712SN/A int arg_data_size = 0; 57812SN/A for (int i = 0; i < argv.size(); ++i) { 57912SN/A arg_data_size += argv[i].size() + 1; 58012SN/A } 58112SN/A int env_data_size = 0; 58212SN/A for (int i = 0; i < envp.size(); ++i) { 58312SN/A env_data_size += envp[i].size() + 1; 58412SN/A } 58512SN/A 58612SN/A int space_needed = 58712SN/A argv_array_size + envp_array_size + arg_data_size + env_data_size; 5883005Sstever@eecs.umich.edu if (space_needed < 32*1024) 5893005Sstever@eecs.umich.edu space_needed = 32*1024; 59012SN/A 59112SN/A // set bottom of stack 59212SN/A stack_min = stack_base - space_needed; 59312SN/A // align it 5942800Ssaidi@eecs.umich.edu stack_min = roundDown(stack_min, pageSize); 59512SN/A stack_size = stack_base - stack_min; 5962378SN/A // map memory 5972800Ssaidi@eecs.umich.edu pTable->allocate(stack_min, roundUp(stack_size, pageSize)); 59812SN/A 59912SN/A // map out initial stack contents 6002523SN/A Addr argv_array_base = stack_min + intSize; // room for argc 60112SN/A Addr envp_array_base = argv_array_base + argv_array_size; 60212SN/A Addr arg_data_base = envp_array_base + envp_array_size; 60312SN/A Addr env_data_base = arg_data_base + arg_data_size; 60412SN/A 60512SN/A // write contents to stack 60612SN/A uint64_t argc = argv.size(); 6072474SN/A if (intSize == 8) 6082474SN/A argc = htog((uint64_t)argc); 6092474SN/A else if (intSize == 4) 6102474SN/A argc = htog((uint32_t)argc); 6112474SN/A else 6122474SN/A panic("Unknown int size"); 6132474SN/A 6142474SN/A initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize); 61512SN/A 6162378SN/A copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); 6172378SN/A copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); 61812SN/A 6195713Shsul@eecs.umich.edu ThreadContext *tc = system->getThreadContext(contextIds[0]); 6205713Shsul@eecs.umich.edu 6215958Sgblack@eecs.umich.edu setSyscallArg(tc, 0, argc); 6225958Sgblack@eecs.umich.edu setSyscallArg(tc, 1, argv_array_base); 6235713Shsul@eecs.umich.edu tc->setIntReg(StackPointerReg, stack_min); 6242451SN/A 6252451SN/A Addr prog_entry = objFile->entryPoint(); 6265713Shsul@eecs.umich.edu tc->setPC(prog_entry); 6275713Shsul@eecs.umich.edu tc->setNextPC(prog_entry + sizeof(MachInst)); 6282817Sksewell@umich.edu 6292817Sksewell@umich.edu#if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc 6305713Shsul@eecs.umich.edu tc->setNextNPC(prog_entry + (2 * sizeof(MachInst))); 6312817Sksewell@umich.edu#endif 6322378SN/A 6332378SN/A num_processes++; 6342SN/A} 6352SN/A 6362093SN/Avoid 6372680Sktlim@umich.eduLiveProcess::syscall(int64_t callnum, ThreadContext *tc) 6382093SN/A{ 6392093SN/A num_syscalls++; 6402093SN/A 6412093SN/A SyscallDesc *desc = getDesc(callnum); 6422093SN/A if (desc == NULL) 6432093SN/A fatal("Syscall %d out of range", callnum); 6442093SN/A 6452680Sktlim@umich.edu desc->doSyscall(callnum, this, tc); 6462093SN/A} 6472SN/A 6482715Sstever@eecs.umich.eduLiveProcess * 6495154Sgblack@eecs.umich.eduLiveProcess::create(LiveProcessParams * params) 6502715Sstever@eecs.umich.edu{ 6512715Sstever@eecs.umich.edu LiveProcess *process = NULL; 6522715Sstever@eecs.umich.edu 6535154Sgblack@eecs.umich.edu string executable = 6545154Sgblack@eecs.umich.edu params->executable == "" ? params->cmd[0] : params->executable; 6552715Sstever@eecs.umich.edu ObjectFile *objFile = createObjectFile(executable); 6562715Sstever@eecs.umich.edu if (objFile == NULL) { 6572715Sstever@eecs.umich.edu fatal("Can't load object file %s", executable); 6582715Sstever@eecs.umich.edu } 6592715Sstever@eecs.umich.edu 6603917Ssaidi@eecs.umich.edu if (objFile->isDynamic()) 6613917Ssaidi@eecs.umich.edu fatal("Object file is a dynamic executable however only static " 6625070Ssaidi@eecs.umich.edu "executables are supported!\n Please recompile your " 6633917Ssaidi@eecs.umich.edu "executable as a static binary and try again.\n"); 6643917Ssaidi@eecs.umich.edu 6655089Sgblack@eecs.umich.edu#if THE_ISA == ALPHA_ISA 6665753Ssteve.reinhardt@amd.com if (objFile->getArch() != ObjectFile::Alpha) 6675753Ssteve.reinhardt@amd.com fatal("Object file architecture does not match compiled ISA (Alpha)."); 6685753Ssteve.reinhardt@amd.com 6692715Sstever@eecs.umich.edu switch (objFile->getOpSys()) { 6702715Sstever@eecs.umich.edu case ObjectFile::Tru64: 6715154Sgblack@eecs.umich.edu process = new AlphaTru64Process(params, objFile); 6722715Sstever@eecs.umich.edu break; 6732715Sstever@eecs.umich.edu 6745753Ssteve.reinhardt@amd.com case ObjectFile::UnknownOpSys: 6755753Ssteve.reinhardt@amd.com warn("Unknown operating system; assuming Linux."); 6765753Ssteve.reinhardt@amd.com // fall through 6772715Sstever@eecs.umich.edu case ObjectFile::Linux: 6785154Sgblack@eecs.umich.edu process = new AlphaLinuxProcess(params, objFile); 6792715Sstever@eecs.umich.edu break; 6802715Sstever@eecs.umich.edu 6812715Sstever@eecs.umich.edu default: 6822715Sstever@eecs.umich.edu fatal("Unknown/unsupported operating system."); 6832715Sstever@eecs.umich.edu } 6842715Sstever@eecs.umich.edu#elif THE_ISA == SPARC_ISA 6855753Ssteve.reinhardt@amd.com if (objFile->getArch() != ObjectFile::SPARC64 && 6865753Ssteve.reinhardt@amd.com objFile->getArch() != ObjectFile::SPARC32) 6872715Sstever@eecs.umich.edu fatal("Object file architecture does not match compiled ISA (SPARC)."); 6882715Sstever@eecs.umich.edu switch (objFile->getOpSys()) { 6895753Ssteve.reinhardt@amd.com case ObjectFile::UnknownOpSys: 6905753Ssteve.reinhardt@amd.com warn("Unknown operating system; assuming Linux."); 6915753Ssteve.reinhardt@amd.com // fall through 6922715Sstever@eecs.umich.edu case ObjectFile::Linux: 6934111Sgblack@eecs.umich.edu if (objFile->getArch() == ObjectFile::SPARC64) { 6945154Sgblack@eecs.umich.edu process = new Sparc64LinuxProcess(params, objFile); 6954111Sgblack@eecs.umich.edu } else { 6965154Sgblack@eecs.umich.edu process = new Sparc32LinuxProcess(params, objFile); 6974111Sgblack@eecs.umich.edu } 6982715Sstever@eecs.umich.edu break; 6992715Sstever@eecs.umich.edu 7002715Sstever@eecs.umich.edu 7012715Sstever@eecs.umich.edu case ObjectFile::Solaris: 7025154Sgblack@eecs.umich.edu process = new SparcSolarisProcess(params, objFile); 7032715Sstever@eecs.umich.edu break; 7045753Ssteve.reinhardt@amd.com 7052715Sstever@eecs.umich.edu default: 7062715Sstever@eecs.umich.edu fatal("Unknown/unsupported operating system."); 7072715Sstever@eecs.umich.edu } 7084157Sgblack@eecs.umich.edu#elif THE_ISA == X86_ISA 7095874Sgblack@eecs.umich.edu if (objFile->getArch() != ObjectFile::X86_64 && 7105874Sgblack@eecs.umich.edu objFile->getArch() != ObjectFile::I386) 7114166Sgblack@eecs.umich.edu fatal("Object file architecture does not match compiled ISA (x86)."); 7124157Sgblack@eecs.umich.edu switch (objFile->getOpSys()) { 7135753Ssteve.reinhardt@amd.com case ObjectFile::UnknownOpSys: 7145753Ssteve.reinhardt@amd.com warn("Unknown operating system; assuming Linux."); 7155753Ssteve.reinhardt@amd.com // fall through 7164166Sgblack@eecs.umich.edu case ObjectFile::Linux: 7175874Sgblack@eecs.umich.edu if (objFile->getArch() == ObjectFile::X86_64) { 7185955Sgblack@eecs.umich.edu process = new X86_64LinuxProcess(params, objFile); 7195874Sgblack@eecs.umich.edu } else { 7205955Sgblack@eecs.umich.edu process = new I386LinuxProcess(params, objFile); 7215874Sgblack@eecs.umich.edu } 7224166Sgblack@eecs.umich.edu break; 7235753Ssteve.reinhardt@amd.com 7244157Sgblack@eecs.umich.edu default: 7254157Sgblack@eecs.umich.edu fatal("Unknown/unsupported operating system."); 7264157Sgblack@eecs.umich.edu } 7272715Sstever@eecs.umich.edu#elif THE_ISA == MIPS_ISA 7282715Sstever@eecs.umich.edu if (objFile->getArch() != ObjectFile::Mips) 7292715Sstever@eecs.umich.edu fatal("Object file architecture does not match compiled ISA (MIPS)."); 7302715Sstever@eecs.umich.edu switch (objFile->getOpSys()) { 7315753Ssteve.reinhardt@amd.com case ObjectFile::UnknownOpSys: 7325753Ssteve.reinhardt@amd.com warn("Unknown operating system; assuming Linux."); 7335753Ssteve.reinhardt@amd.com // fall through 7342715Sstever@eecs.umich.edu case ObjectFile::Linux: 7355154Sgblack@eecs.umich.edu process = new MipsLinuxProcess(params, objFile); 7362715Sstever@eecs.umich.edu break; 7372715Sstever@eecs.umich.edu 7382715Sstever@eecs.umich.edu default: 7392715Sstever@eecs.umich.edu fatal("Unknown/unsupported operating system."); 7402715Sstever@eecs.umich.edu } 7415335Shines@cs.fsu.edu#elif THE_ISA == ARM_ISA 7425335Shines@cs.fsu.edu if (objFile->getArch() != ObjectFile::Arm) 7435335Shines@cs.fsu.edu fatal("Object file architecture does not match compiled ISA (ARM)."); 7445335Shines@cs.fsu.edu switch (objFile->getOpSys()) { 7455753Ssteve.reinhardt@amd.com case ObjectFile::UnknownOpSys: 7465753Ssteve.reinhardt@amd.com warn("Unknown operating system; assuming Linux."); 7475753Ssteve.reinhardt@amd.com // fall through 7485335Shines@cs.fsu.edu case ObjectFile::Linux: 7495335Shines@cs.fsu.edu process = new ArmLinuxProcess(params, objFile); 7505335Shines@cs.fsu.edu break; 7515335Shines@cs.fsu.edu 7525335Shines@cs.fsu.edu default: 7535335Shines@cs.fsu.edu fatal("Unknown/unsupported operating system."); 7545335Shines@cs.fsu.edu } 7552715Sstever@eecs.umich.edu#else 7562715Sstever@eecs.umich.edu#error "THE_ISA not set" 7572715Sstever@eecs.umich.edu#endif 7582715Sstever@eecs.umich.edu 7592715Sstever@eecs.umich.edu 7602715Sstever@eecs.umich.edu if (process == NULL) 7612715Sstever@eecs.umich.edu fatal("Unknown error creating process object."); 7622715Sstever@eecs.umich.edu return process; 7632715Sstever@eecs.umich.edu} 7642715Sstever@eecs.umich.edu 7654762Snate@binkert.orgLiveProcess * 7664762Snate@binkert.orgLiveProcessParams::create() 7672715Sstever@eecs.umich.edu{ 7685154Sgblack@eecs.umich.edu return LiveProcess::create(this); 7692715Sstever@eecs.umich.edu} 770