process.cc revision 5154
11689SN/A/* 29444SAndreas.Sandberg@ARM.com * Copyright (c) 2001-2005 The Regents of The University of Michigan 38707Sandreas.hansson@arm.com * All rights reserved. 48707Sandreas.hansson@arm.com * 58707Sandreas.hansson@arm.com * Redistribution and use in source and binary forms, with or without 68707Sandreas.hansson@arm.com * modification, are permitted provided that the following conditions are 78707Sandreas.hansson@arm.com * met: redistributions of source code must retain the above copyright 88707Sandreas.hansson@arm.com * notice, this list of conditions and the following disclaimer; 98707Sandreas.hansson@arm.com * redistributions in binary form must reproduce the above copyright 108707Sandreas.hansson@arm.com * notice, this list of conditions and the following disclaimer in the 118707Sandreas.hansson@arm.com * documentation and/or other materials provided with the distribution; 128707Sandreas.hansson@arm.com * neither the name of the copyright holders nor the names of its 138707Sandreas.hansson@arm.com * contributors may be used to endorse or promote products derived from 141689SN/A * this software without specific prior written permission. 157897Shestness@cs.utexas.edu * 161689SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 171689SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 181689SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 191689SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 201689SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 211689SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 221689SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231689SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241689SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251689SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 261689SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 271689SN/A * 281689SN/A * Authors: Nathan Binkert 291689SN/A * Steve Reinhardt 301689SN/A * Ali Saidi 311689SN/A */ 321689SN/A 331689SN/A#include <unistd.h> 341689SN/A#include <fcntl.h> 351689SN/A 361689SN/A#include <string> 371689SN/A 381689SN/A#include "arch/remote_gdb.hh" 391689SN/A#include "base/intmath.hh" 402665Ssaidi@eecs.umich.edu#include "base/loader/object_file.hh" 412665Ssaidi@eecs.umich.edu#include "base/loader/symtab.hh" 422756Sksewell@umich.edu#include "base/statistics.hh" 437897Shestness@cs.utexas.edu#include "config/full_system.hh" 441689SN/A#include "cpu/thread_context.hh" 451689SN/A#include "mem/page_table.hh" 462325SN/A#include "mem/physical.hh" 472325SN/A#include "mem/translating_port.hh" 481060SN/A#include "params/Process.hh" 491060SN/A#include "params/LiveProcess.hh" 501060SN/A#include "sim/process.hh" 512292SN/A#include "sim/process_impl.hh" 522292SN/A#include "sim/stats.hh" 531681SN/A#include "sim/syscall_emul.hh" 541060SN/A#include "sim/system.hh" 552980Sgblack@eecs.umich.edu 561060SN/A#include "arch/isa_specific.hh" 576658Snate@binkert.org#if THE_ISA == ALPHA_ISA 581717SN/A#include "arch/alpha/linux/process.hh" 591717SN/A#include "arch/alpha/tru64/process.hh" 602292SN/A#elif THE_ISA == SPARC_ISA 612292SN/A#include "arch/sparc/linux/process.hh" 628229Snate@binkert.org#include "arch/sparc/solaris/process.hh" 638229Snate@binkert.org#elif THE_ISA == MIPS_ISA 648229Snate@binkert.org#include "arch/mips/linux/process.hh" 658229Snate@binkert.org#elif THE_ISA == X86_ISA 662817Sksewell@umich.edu#include "arch/x86/linux/process.hh" 678229Snate@binkert.org#else 681060SN/A#error "THE_ISA not set" 691060SN/A#endif 702316SN/A 712316SN/A 722680Sktlim@umich.eduusing namespace std; 732817Sksewell@umich.eduusing namespace TheISA; 742817Sksewell@umich.edu 752843Sktlim@umich.edu// 762843Sktlim@umich.edu// The purpose of this code is to fake the loader & syscall mechanism 772669Sktlim@umich.edu// when there's no OS: thus there's no resone to use it in FULL_SYSTEM 781060SN/A// mode when we do have an OS 791060SN/A// 808737Skoansin.tan@gmail.com#if FULL_SYSTEM 815529Snate@binkert.org#error "process.cc not compatible with FULL_SYSTEM" 822733Sktlim@umich.edu#endif 831060SN/A 841060SN/A// current number of allocated processes 851060SN/Aint num_processes = 0; 865529Snate@binkert.org 872292SN/AProcess::Process(ProcessParams * params) 882292SN/A : SimObject(params), system(params->system), 891060SN/A max_stack_size(params->max_stack_size) 901060SN/A{ 912348SN/A string in = params->input; 922348SN/A string out = params->output; 932348SN/A 942348SN/A // initialize file descriptors to default: same as simulator 952348SN/A int stdin_fd, stdout_fd, stderr_fd; 961060SN/A 972733Sktlim@umich.edu if (in == "stdin" || in == "cin") 981060SN/A stdin_fd = STDIN_FILENO; 991060SN/A else if (in == "None") 1002325SN/A stdin_fd = -1; 1011060SN/A else 1021061SN/A stdin_fd = Process::openInputFile(in); 1034329Sktlim@umich.edu 1041060SN/A if (out == "stdout" || out == "cout") 1055595Sgblack@eecs.umich.edu stdout_fd = STDOUT_FILENO; 1062292SN/A else if (out == "stderr" || out == "cerr") 1072292SN/A stdout_fd = STDERR_FILENO; 1082292SN/A else if (out == "None") 1092292SN/A stdout_fd = -1; 1102817Sksewell@umich.edu else 1112829Sksewell@umich.edu stdout_fd = Process::openOutputFile(out); 1121060SN/A 1131060SN/A stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; 1141060SN/A 1151060SN/A M5_pid = system->allocatePID(); 1161060SN/A // initialize first 3 fds (stdin, stdout, stderr) 1172307SN/A fd_map[STDIN_FILENO] = stdin_fd; 1182307SN/A fd_map[STDOUT_FILENO] = stdout_fd; 1191060SN/A fd_map[STDERR_FILENO] = stderr_fd; 1201060SN/A 1216022Sgblack@eecs.umich.edu // mark remaining fds as free 1226022Sgblack@eecs.umich.edu for (int i = 3; i <= MAX_FD; ++i) { 1233781Sgblack@eecs.umich.edu fd_map[i] = -1; 1242292SN/A } 1251060SN/A 1261060SN/A mmap_start = mmap_end = 0; 1271060SN/A nxm_start = nxm_end = 0; 1288707Sandreas.hansson@arm.com pTable = new PageTable(system); 1298707Sandreas.hansson@arm.com // other parameters will be initialized when the program is loaded 1308707Sandreas.hansson@arm.com} 1318707Sandreas.hansson@arm.com 1328707Sandreas.hansson@arm.com 1338707Sandreas.hansson@arm.comvoid 1348707Sandreas.hansson@arm.comProcess::regStats() 1358707Sandreas.hansson@arm.com{ 1368707Sandreas.hansson@arm.com using namespace Stats; 1378707Sandreas.hansson@arm.com 1388707Sandreas.hansson@arm.com num_syscalls 1398707Sandreas.hansson@arm.com .name(name() + ".PROG:num_syscalls") 1408707Sandreas.hansson@arm.com .desc("Number of system calls") 1419095Sandreas.hansson@arm.com ; 1428707Sandreas.hansson@arm.com} 1438707Sandreas.hansson@arm.com 1448707Sandreas.hansson@arm.com// 1458707Sandreas.hansson@arm.com// static helper functions 1468707Sandreas.hansson@arm.com// 1478707Sandreas.hansson@arm.comint 1488975Sandreas.hansson@arm.comProcess::openInputFile(const string &filename) 1498975Sandreas.hansson@arm.com{ 1508707Sandreas.hansson@arm.com int fd = open(filename.c_str(), O_RDONLY); 1518707Sandreas.hansson@arm.com 1528707Sandreas.hansson@arm.com if (fd == -1) { 1538707Sandreas.hansson@arm.com perror(NULL); 1548707Sandreas.hansson@arm.com cerr << "unable to open \"" << filename << "\" for reading\n"; 1558707Sandreas.hansson@arm.com fatal("can't open input file"); 1568707Sandreas.hansson@arm.com } 1578707Sandreas.hansson@arm.com 1588707Sandreas.hansson@arm.com return fd; 1598707Sandreas.hansson@arm.com} 1608707Sandreas.hansson@arm.com 1618707Sandreas.hansson@arm.com 1628707Sandreas.hansson@arm.comint 1638707Sandreas.hansson@arm.comProcess::openOutputFile(const string &filename) 1648707Sandreas.hansson@arm.com{ 1658707Sandreas.hansson@arm.com int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0774); 1668707Sandreas.hansson@arm.com 1678707Sandreas.hansson@arm.com if (fd == -1) { 1689095Sandreas.hansson@arm.com perror(NULL); 1698707Sandreas.hansson@arm.com cerr << "unable to open \"" << filename << "\" for writing\n"; 1708707Sandreas.hansson@arm.com fatal("can't open output file"); 1718707Sandreas.hansson@arm.com } 1728707Sandreas.hansson@arm.com 1738707Sandreas.hansson@arm.com return fd; 1748707Sandreas.hansson@arm.com} 1758707Sandreas.hansson@arm.com 1768975Sandreas.hansson@arm.com 1778975Sandreas.hansson@arm.comint 1788707Sandreas.hansson@arm.comProcess::registerThreadContext(ThreadContext *tc) 1798707Sandreas.hansson@arm.com{ 1808707Sandreas.hansson@arm.com // add to list 1818707Sandreas.hansson@arm.com int myIndex = threadContexts.size(); 1828707Sandreas.hansson@arm.com threadContexts.push_back(tc); 1838707Sandreas.hansson@arm.com 1848707Sandreas.hansson@arm.com RemoteGDB *rgdb = new RemoteGDB(system, tc); 1858707Sandreas.hansson@arm.com GDBListener *gdbl = new GDBListener(rgdb, 7000 + myIndex); 1868711Sandreas.hansson@arm.com gdbl->listen(); 1878707Sandreas.hansson@arm.com //gdbl->accept(); 1888922Swilliam.wang@arm.com 1898707Sandreas.hansson@arm.com remoteGDB.push_back(rgdb); 1908707Sandreas.hansson@arm.com 1911060SN/A // return CPU number to caller 1921060SN/A return myIndex; 1931060SN/A} 1942292SN/A 1951755SN/Avoid 1961060SN/AProcess::startup() 1971060SN/A{ 1982292SN/A if (threadContexts.empty()) 1991755SN/A fatal("Process %s is not associated with any CPUs!\n", name()); 2002292SN/A 2012292SN/A // first thread context for this process... initialize & enable 2021060SN/A ThreadContext *tc = threadContexts[0]; 2032292SN/A 2045336Shines@cs.fsu.edu // mark this context as active so it will start ticking. 2051060SN/A tc->activate(0); 2061060SN/A 2072292SN/A Port *mem_port; 2081060SN/A mem_port = system->physmem->getPort("functional"); 2091060SN/A initVirtMem = new TranslatingPort("process init port", this, 2102292SN/A TranslatingPort::Always); 2119180Sandreas.hansson@arm.com mem_port->setPeer(initVirtMem); 2121060SN/A initVirtMem->setPeer(mem_port); 2131060SN/A} 2149179Sandreas.hansson@arm.com 2151060SN/Avoid 2169179Sandreas.hansson@arm.comProcess::replaceThreadContext(ThreadContext *tc, int tcIndex) 2171060SN/A{ 2181060SN/A if (tcIndex >= threadContexts.size()) { 2192292SN/A panic("replaceThreadContext: bad tcIndex, %d >= %d\n", 2201060SN/A tcIndex, threadContexts.size()); 2211060SN/A } 2221060SN/A 2231060SN/A threadContexts[tcIndex] = tc; 2241060SN/A} 2251060SN/A 2262829Sksewell@umich.edu// map simulator fd sim_fd to target fd tgt_fd 2272829Sksewell@umich.eduvoid 2282829Sksewell@umich.eduProcess::dup_fd(int sim_fd, int tgt_fd) 2292829Sksewell@umich.edu{ 2306221Snate@binkert.org if (tgt_fd < 0 || tgt_fd > MAX_FD) 2312829Sksewell@umich.edu panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); 2322829Sksewell@umich.edu 2332829Sksewell@umich.edu fd_map[tgt_fd] = sim_fd; 2342829Sksewell@umich.edu} 2352829Sksewell@umich.edu 2362829Sksewell@umich.edu 2372829Sksewell@umich.edu// generate new target fd for sim_fd 2382829Sksewell@umich.eduint 2392829Sksewell@umich.eduProcess::alloc_fd(int sim_fd) 2402829Sksewell@umich.edu{ 2412829Sksewell@umich.edu // in case open() returns an error, don't allocate a new fd 2422829Sksewell@umich.edu if (sim_fd == -1) 2432829Sksewell@umich.edu return -1; 2442829Sksewell@umich.edu 2452829Sksewell@umich.edu // find first free target fd 2465336Shines@cs.fsu.edu for (int free_fd = 0; free_fd < MAX_FD; ++free_fd) { 2472829Sksewell@umich.edu if (fd_map[free_fd] == -1) { 2482829Sksewell@umich.edu fd_map[free_fd] = sim_fd; 2492829Sksewell@umich.edu return free_fd; 2506221Snate@binkert.org } 2519180Sandreas.hansson@arm.com } 2522829Sksewell@umich.edu 2532829Sksewell@umich.edu panic("Process::alloc_fd: out of file descriptors!"); 2542829Sksewell@umich.edu} 2555606Snate@binkert.org 2569179Sandreas.hansson@arm.com 2578518Sgeoffrey.blake@arm.com// free target fd (e.g., after close) 2589179Sandreas.hansson@arm.comvoid 2598518Sgeoffrey.blake@arm.comProcess::free_fd(int tgt_fd) 2608518Sgeoffrey.blake@arm.com{ 2618518Sgeoffrey.blake@arm.com if (fd_map[tgt_fd] == -1) 2628518Sgeoffrey.blake@arm.com warn("Process::free_fd: request to free unused fd %d", tgt_fd); 2638518Sgeoffrey.blake@arm.com 2648518Sgeoffrey.blake@arm.com fd_map[tgt_fd] = -1; 2658518Sgeoffrey.blake@arm.com} 2668518Sgeoffrey.blake@arm.com 2678518Sgeoffrey.blake@arm.com 2688518Sgeoffrey.blake@arm.com// look up simulator fd for given target fd 2698518Sgeoffrey.blake@arm.comint 2702829Sksewell@umich.eduProcess::sim_fd(int tgt_fd) 2712829Sksewell@umich.edu{ 2722829Sksewell@umich.edu if (tgt_fd > MAX_FD) 2736221Snate@binkert.org return -1; 2746221Snate@binkert.org 2752829Sksewell@umich.edu return fd_map[tgt_fd]; 2762829Sksewell@umich.edu} 2772829Sksewell@umich.edu 2782829Sksewell@umich.edubool 2792829Sksewell@umich.eduProcess::checkAndAllocNextPage(Addr vaddr) 2802829Sksewell@umich.edu{ 2812829Sksewell@umich.edu // if this is an initial write we might not have 2822829Sksewell@umich.edu if (vaddr >= stack_min && vaddr < stack_base) { 2832875Sksewell@umich.edu pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize); 2842875Sksewell@umich.edu return true; 2852875Sksewell@umich.edu } 2863221Sktlim@umich.edu 2876221Snate@binkert.org // We've accessed the next page of the stack, so extend the stack 2882875Sksewell@umich.edu // to cover it. 2893221Sktlim@umich.edu if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 2903221Sktlim@umich.edu while (vaddr < stack_min) { 2913221Sktlim@umich.edu stack_min -= TheISA::PageBytes; 2922875Sksewell@umich.edu if(stack_base - stack_min > max_stack_size) 2932875Sksewell@umich.edu fatal("Maximum stack size exceeded\n"); 2942875Sksewell@umich.edu if(stack_base - stack_min > 8*1024*1024) 2952875Sksewell@umich.edu fatal("Over max stack size for one thread\n"); 2962875Sksewell@umich.edu pTable->allocate(stack_min, TheISA::PageBytes); 2972875Sksewell@umich.edu warn("Increasing stack size by one page."); 2982875Sksewell@umich.edu }; 2992875Sksewell@umich.edu return true; 3002875Sksewell@umich.edu } 3012875Sksewell@umich.edu return false; 3022875Sksewell@umich.edu} 3032875Sksewell@umich.edu 3042875Sksewell@umich.eduvoid 3053221Sktlim@umich.eduProcess::serialize(std::ostream &os) 3063221Sktlim@umich.edu{ 3073221Sktlim@umich.edu SERIALIZE_SCALAR(initialContextLoaded); 3082875Sksewell@umich.edu SERIALIZE_SCALAR(brk_point); 3095336Shines@cs.fsu.edu SERIALIZE_SCALAR(stack_base); 3102875Sksewell@umich.edu SERIALIZE_SCALAR(stack_size); 3112875Sksewell@umich.edu SERIALIZE_SCALAR(stack_min); 3122875Sksewell@umich.edu SERIALIZE_SCALAR(next_thread_stack_base); 3136221Snate@binkert.org SERIALIZE_SCALAR(mmap_start); 3149180Sandreas.hansson@arm.com SERIALIZE_SCALAR(mmap_end); 3152875Sksewell@umich.edu SERIALIZE_SCALAR(nxm_start); 3162875Sksewell@umich.edu SERIALIZE_SCALAR(nxm_end); 3172875Sksewell@umich.edu SERIALIZE_ARRAY(fd_map, MAX_FD); 3185606Snate@binkert.org 3199179Sandreas.hansson@arm.com pTable->serialize(os); 3202875Sksewell@umich.edu} 3215606Snate@binkert.org 3229179Sandreas.hansson@arm.comvoid 3232875Sksewell@umich.eduProcess::unserialize(Checkpoint *cp, const std::string §ion) 3242875Sksewell@umich.edu{ 3252875Sksewell@umich.edu UNSERIALIZE_SCALAR(initialContextLoaded); 3266221Snate@binkert.org UNSERIALIZE_SCALAR(brk_point); 3276221Snate@binkert.org UNSERIALIZE_SCALAR(stack_base); 3282875Sksewell@umich.edu UNSERIALIZE_SCALAR(stack_size); 3292875Sksewell@umich.edu UNSERIALIZE_SCALAR(stack_min); 3302875Sksewell@umich.edu UNSERIALIZE_SCALAR(next_thread_stack_base); 3312875Sksewell@umich.edu UNSERIALIZE_SCALAR(mmap_start); 3322875Sksewell@umich.edu UNSERIALIZE_SCALAR(mmap_end); 3332875Sksewell@umich.edu UNSERIALIZE_SCALAR(nxm_start); 3342875Sksewell@umich.edu UNSERIALIZE_SCALAR(nxm_end); 3352875Sksewell@umich.edu UNSERIALIZE_ARRAY(fd_map, MAX_FD); 3369444SAndreas.Sandberg@ARM.com 3379444SAndreas.Sandberg@ARM.com pTable->unserialize(cp, section); 3389444SAndreas.Sandberg@ARM.com} 3399444SAndreas.Sandberg@ARM.com 3409444SAndreas.Sandberg@ARM.com 3419444SAndreas.Sandberg@ARM.com//////////////////////////////////////////////////////////////////////// 3429444SAndreas.Sandberg@ARM.com// 3439444SAndreas.Sandberg@ARM.com// LiveProcess member definitions 3449444SAndreas.Sandberg@ARM.com// 3459444SAndreas.Sandberg@ARM.com//////////////////////////////////////////////////////////////////////// 3469444SAndreas.Sandberg@ARM.com 3479444SAndreas.Sandberg@ARM.com 3489444SAndreas.Sandberg@ARM.comLiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile) 3499444SAndreas.Sandberg@ARM.com : Process(params), objFile(_objFile), 3509444SAndreas.Sandberg@ARM.com argv(params->cmd), envp(params->env), cwd(params->cwd) 3519444SAndreas.Sandberg@ARM.com{ 3529444SAndreas.Sandberg@ARM.com __uid = params->uid; 3539444SAndreas.Sandberg@ARM.com __euid = params->euid; 3549444SAndreas.Sandberg@ARM.com __gid = params->gid; 3559444SAndreas.Sandberg@ARM.com __egid = params->egid; 3569444SAndreas.Sandberg@ARM.com __pid = params->pid; 3579444SAndreas.Sandberg@ARM.com __ppid = params->ppid; 3589444SAndreas.Sandberg@ARM.com 3599444SAndreas.Sandberg@ARM.com prog_fname = params->cmd[0]; 3609444SAndreas.Sandberg@ARM.com 3619444SAndreas.Sandberg@ARM.com // load up symbols, if any... these may be used for debugging or 3629444SAndreas.Sandberg@ARM.com // profiling. 3631060SN/A if (!debugSymbolTable) { 3642292SN/A debugSymbolTable = new SymbolTable(); 3655595Sgblack@eecs.umich.edu if (!objFile->loadGlobalSymbols(debugSymbolTable) || 3662292SN/A !objFile->loadLocalSymbols(debugSymbolTable)) { 3671755SN/A // didn't load any symbols 3681060SN/A delete debugSymbolTable; 3692292SN/A debugSymbolTable = NULL; 3705595Sgblack@eecs.umich.edu } 3711684SN/A } 3725358Sgblack@eecs.umich.edu} 3735358Sgblack@eecs.umich.edu 3745358Sgblack@eecs.umich.eduvoid 3755358Sgblack@eecs.umich.eduLiveProcess::argsInit(int intSize, int pageSize) 3765358Sgblack@eecs.umich.edu{ 3775358Sgblack@eecs.umich.edu Process::startup(); 3785358Sgblack@eecs.umich.edu 3795358Sgblack@eecs.umich.edu // load object file into target memory 3805358Sgblack@eecs.umich.edu objFile->loadSections(initVirtMem); 3815358Sgblack@eecs.umich.edu 3825358Sgblack@eecs.umich.edu // Calculate how much space we need for arg & env arrays. 3835358Sgblack@eecs.umich.edu int argv_array_size = intSize * (argv.size() + 1); 3845358Sgblack@eecs.umich.edu int envp_array_size = intSize * (envp.size() + 1); 3855358Sgblack@eecs.umich.edu int arg_data_size = 0; 3865358Sgblack@eecs.umich.edu for (int i = 0; i < argv.size(); ++i) { 3875358Sgblack@eecs.umich.edu arg_data_size += argv[i].size() + 1; 3882292SN/A } 3892292SN/A int env_data_size = 0; 3902292SN/A for (int i = 0; i < envp.size(); ++i) { 3911684SN/A env_data_size += envp[i].size() + 1; 3921684SN/A } 3932292SN/A 3941060SN/A int space_needed = 3951060SN/A argv_array_size + envp_array_size + arg_data_size + env_data_size; 3969427SAndreas.Sandberg@ARM.com if (space_needed < 32*1024) 3979427SAndreas.Sandberg@ARM.com space_needed = 32*1024; 3982834Sksewell@umich.edu 3992834Sksewell@umich.edu // set bottom of stack 4002834Sksewell@umich.edu stack_min = stack_base - space_needed; 4012834Sksewell@umich.edu // align it 4022829Sksewell@umich.edu stack_min = roundDown(stack_min, pageSize); 4036221Snate@binkert.org stack_size = stack_base - stack_min; 4042875Sksewell@umich.edu // map memory 4052875Sksewell@umich.edu pTable->allocate(stack_min, roundUp(stack_size, pageSize)); 4066221Snate@binkert.org 4072829Sksewell@umich.edu // map out initial stack contents 4082292SN/A Addr argv_array_base = stack_min + intSize; // room for argc 4096221Snate@binkert.org Addr envp_array_base = argv_array_base + argv_array_size; 4101060SN/A Addr arg_data_base = envp_array_base + envp_array_size; 4112292SN/A Addr env_data_base = arg_data_base + arg_data_size; 4126221Snate@binkert.org 4132292SN/A // write contents to stack 4142292SN/A uint64_t argc = argv.size(); 4158834Satgutier@umich.edu if (intSize == 8) 4168834Satgutier@umich.edu argc = htog((uint64_t)argc); 4178834Satgutier@umich.edu else if (intSize == 4) 4188834Satgutier@umich.edu argc = htog((uint32_t)argc); 4192292SN/A else 4202292SN/A panic("Unknown int size"); 4219180Sandreas.hansson@arm.com 4222292SN/A initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize); 4232292SN/A 4246221Snate@binkert.org copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); 4252292SN/A copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); 4262292SN/A 4273221Sktlim@umich.edu assert(NumArgumentRegs >= 2); 4282292SN/A threadContexts[0]->setIntReg(ArgumentReg[0], argc); 4299180Sandreas.hansson@arm.com threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base); 4309180Sandreas.hansson@arm.com threadContexts[0]->setIntReg(StackPointerReg, stack_min); 4312292SN/A 4322292SN/A Addr prog_entry = objFile->entryPoint(); 4332292SN/A threadContexts[0]->setPC(prog_entry); 4342292SN/A threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst)); 4356221Snate@binkert.org 4362292SN/A#if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc 4372292SN/A threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst))); 4386221Snate@binkert.org#endif 4392292SN/A 4402292SN/A num_processes++; 4412292SN/A} 4422292SN/A 4432292SN/Avoid 4442292SN/ALiveProcess::syscall(int64_t callnum, ThreadContext *tc) 4452292SN/A{ 4469444SAndreas.Sandberg@ARM.com num_syscalls++; 4479444SAndreas.Sandberg@ARM.com 4489444SAndreas.Sandberg@ARM.com SyscallDesc *desc = getDesc(callnum); 4499448SAndreas.Sandberg@ARM.com if (desc == NULL) 4502864Sktlim@umich.edu fatal("Syscall %d out of range", callnum); 4519448SAndreas.Sandberg@ARM.com 4529448SAndreas.Sandberg@ARM.com desc->doSyscall(callnum, this, tc); 4532864Sktlim@umich.edu} 4542864Sktlim@umich.edu 4555595Sgblack@eecs.umich.eduLiveProcess * 4565595Sgblack@eecs.umich.eduLiveProcess::create(LiveProcessParams * params) 4572292SN/A{ 4586221Snate@binkert.org LiveProcess *process = NULL; 4592292SN/A 4602843Sktlim@umich.edu string executable = 4612843Sktlim@umich.edu params->executable == "" ? params->cmd[0] : params->executable; 4629342SAndreas.Sandberg@arm.com ObjectFile *objFile = createObjectFile(executable); 4632843Sktlim@umich.edu if (objFile == NULL) { 4642843Sktlim@umich.edu fatal("Can't load object file %s", executable); 4659342SAndreas.Sandberg@arm.com } 4662292SN/A 4679444SAndreas.Sandberg@ARM.com if (objFile->isDynamic()) 4689444SAndreas.Sandberg@ARM.com fatal("Object file is a dynamic executable however only static " 4699444SAndreas.Sandberg@ARM.com "executables are supported!\n Please recompile your " 4709444SAndreas.Sandberg@ARM.com "executable as a static binary and try again.\n"); 4719444SAndreas.Sandberg@ARM.com 4729444SAndreas.Sandberg@ARM.com#if THE_ISA == ALPHA_ISA 4739444SAndreas.Sandberg@ARM.com if (objFile->hasTLS()) 4749444SAndreas.Sandberg@ARM.com fatal("Object file has a TLS section and single threaded TLS is not\n" 4752843Sktlim@umich.edu " currently supported for Alpha! Please recompile your " 4762843Sktlim@umich.edu "executable with \n a non-TLS toolchain.\n"); 4772843Sktlim@umich.edu 4782316SN/A if (objFile->getArch() != ObjectFile::Alpha) 4792348SN/A fatal("Object file architecture does not match compiled ISA (Alpha)."); 4802843Sktlim@umich.edu switch (objFile->getOpSys()) { 4811060SN/A case ObjectFile::Tru64: 4829523SAndreas.Sandberg@ARM.com process = new AlphaTru64Process(params, objFile); 4839523SAndreas.Sandberg@ARM.com break; 4841060SN/A 4852316SN/A case ObjectFile::Linux: 4862316SN/A process = new AlphaLinuxProcess(params, objFile); 4871060SN/A break; 4885595Sgblack@eecs.umich.edu 4897684Sgblack@eecs.umich.edu default: 4905595Sgblack@eecs.umich.edu fatal("Unknown/unsupported operating system."); 4915702Ssaidi@eecs.umich.edu } 4926221Snate@binkert.org#elif THE_ISA == SPARC_ISA 4935702Ssaidi@eecs.umich.edu if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32) 4946221Snate@binkert.org fatal("Object file architecture does not match compiled ISA (SPARC)."); 4955702Ssaidi@eecs.umich.edu switch (objFile->getOpSys()) { 4965595Sgblack@eecs.umich.edu case ObjectFile::Linux: 4975595Sgblack@eecs.umich.edu if (objFile->getArch() == ObjectFile::SPARC64) { 4985595Sgblack@eecs.umich.edu process = new Sparc64LinuxProcess(params, objFile); 4995595Sgblack@eecs.umich.edu } else { 5005595Sgblack@eecs.umich.edu process = new Sparc32LinuxProcess(params, objFile); 5015595Sgblack@eecs.umich.edu } 5025595Sgblack@eecs.umich.edu break; 5035595Sgblack@eecs.umich.edu 5045595Sgblack@eecs.umich.edu 5051060SN/A case ObjectFile::Solaris: 5061060SN/A process = new SparcSolarisProcess(params, objFile); 5071060SN/A break; 5081060SN/A default: 5091060SN/A fatal("Unknown/unsupported operating system."); 5101060SN/A } 5112348SN/A#elif THE_ISA == X86_ISA 5125595Sgblack@eecs.umich.edu if (objFile->getArch() != ObjectFile::X86) 5135595Sgblack@eecs.umich.edu fatal("Object file architecture does not match compiled ISA (x86)."); 5146221Snate@binkert.org switch (objFile->getOpSys()) { 5155595Sgblack@eecs.umich.edu case ObjectFile::Linux: 5165595Sgblack@eecs.umich.edu process = new X86LinuxProcess(params, objFile); 5175595Sgblack@eecs.umich.edu break; 5185595Sgblack@eecs.umich.edu default: 5196221Snate@binkert.org fatal("Unknown/unsupported operating system."); 5205595Sgblack@eecs.umich.edu } 5215595Sgblack@eecs.umich.edu#elif THE_ISA == MIPS_ISA 5226221Snate@binkert.org if (objFile->getArch() != ObjectFile::Mips) 5236221Snate@binkert.org fatal("Object file architecture does not match compiled ISA (MIPS)."); 5245595Sgblack@eecs.umich.edu switch (objFile->getOpSys()) { 5255595Sgblack@eecs.umich.edu case ObjectFile::Linux: 5265595Sgblack@eecs.umich.edu process = new MipsLinuxProcess(params, objFile); 5275595Sgblack@eecs.umich.edu break; 5285595Sgblack@eecs.umich.edu 5296221Snate@binkert.org default: 5305595Sgblack@eecs.umich.edu fatal("Unknown/unsupported operating system."); 5311060SN/A } 5321060SN/A#else 5333781Sgblack@eecs.umich.edu#error "THE_ISA not set" 5341060SN/A#endif 5353781Sgblack@eecs.umich.edu 5362455SN/A 5371060SN/A if (process == NULL) 5381060SN/A fatal("Unknown error creating process object."); 5393781Sgblack@eecs.umich.edu return process; 5401060SN/A} 5413781Sgblack@eecs.umich.edu 5422455SN/ALiveProcess * 5436221Snate@binkert.orgLiveProcessParams::create() 5441060SN/A{ 5456314Sgblack@eecs.umich.edu return LiveProcess::create(this); 5462292SN/A} 5476221Snate@binkert.org