process.cc revision 2686:f0d591379ac3
14484Sbinkertn@umich.edu/* 24484Sbinkertn@umich.edu * Copyright (c) 2003-2004 The Regents of The University of Michigan 34484Sbinkertn@umich.edu * All rights reserved. 44484Sbinkertn@umich.edu * 54484Sbinkertn@umich.edu * Redistribution and use in source and binary forms, with or without 64484Sbinkertn@umich.edu * modification, are permitted provided that the following conditions are 74484Sbinkertn@umich.edu * met: redistributions of source code must retain the above copyright 84484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer; 94484Sbinkertn@umich.edu * redistributions in binary form must reproduce the above copyright 104484Sbinkertn@umich.edu * notice, this list of conditions and the following disclaimer in the 114484Sbinkertn@umich.edu * documentation and/or other materials provided with the distribution; 124484Sbinkertn@umich.edu * neither the name of the copyright holders nor the names of its 134484Sbinkertn@umich.edu * contributors may be used to endorse or promote products derived from 144484Sbinkertn@umich.edu * this software without specific prior written permission. 154484Sbinkertn@umich.edu * 164484Sbinkertn@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174484Sbinkertn@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184484Sbinkertn@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194484Sbinkertn@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204484Sbinkertn@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214484Sbinkertn@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224484Sbinkertn@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234484Sbinkertn@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244484Sbinkertn@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254484Sbinkertn@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264484Sbinkertn@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274484Sbinkertn@umich.edu * 284484Sbinkertn@umich.edu * Authors: Gabe Black 294484Sbinkertn@umich.edu * Ali Saidi 304484Sbinkertn@umich.edu * Korey Sewell 314484Sbinkertn@umich.edu */ 324484Sbinkertn@umich.edu 334484Sbinkertn@umich.edu#include "arch/mips/isa_traits.hh" 344484Sbinkertn@umich.edu#include "arch/mips/process.hh" 354484Sbinkertn@umich.edu#include "arch/mips/linux/process.hh" 364484Sbinkertn@umich.edu#include "base/loader/object_file.hh" 374484Sbinkertn@umich.edu#include "base/misc.hh" 384484Sbinkertn@umich.edu#include "cpu/thread_context.hh" 394484Sbinkertn@umich.edu#include "sim/builder.hh" 404484Sbinkertn@umich.edu#include "sim/system.hh" 414484Sbinkertn@umich.edu 424484Sbinkertn@umich.eduusing namespace std; 434484Sbinkertn@umich.eduusing namespace MipsISA; 444484Sbinkertn@umich.edu 454484Sbinkertn@umich.edu 464484Sbinkertn@umich.eduMipsLiveProcess * 474484Sbinkertn@umich.eduMipsLiveProcess::create(const std::string &nm, System *system, int stdin_fd, 484484Sbinkertn@umich.edu int stdout_fd, int stderr_fd, std::string executable, 494484Sbinkertn@umich.edu std::vector<std::string> &argv, std::vector<std::string> &envp) 504484Sbinkertn@umich.edu{ 514484Sbinkertn@umich.edu MipsLiveProcess *process = NULL; 524484Sbinkertn@umich.edu 534484Sbinkertn@umich.edu ObjectFile *objFile = createObjectFile(executable); 544484Sbinkertn@umich.edu if (objFile == NULL) { 554484Sbinkertn@umich.edu fatal("Can't load object file %s", executable); 564484Sbinkertn@umich.edu } 574484Sbinkertn@umich.edu 584484Sbinkertn@umich.edu 594484Sbinkertn@umich.edu if (objFile->getArch() != ObjectFile::Mips) 604484Sbinkertn@umich.edu fatal("Object file does not match MIPS architecture."); 614484Sbinkertn@umich.edu 624484Sbinkertn@umich.edu switch (objFile->getOpSys()) { 634484Sbinkertn@umich.edu case ObjectFile::Linux: 644484Sbinkertn@umich.edu process = new MipsLinuxProcess(nm, objFile, system, 654484Sbinkertn@umich.edu stdin_fd, stdout_fd, stderr_fd, 664484Sbinkertn@umich.edu argv, envp); 674484Sbinkertn@umich.edu break; 684484Sbinkertn@umich.edu 694484Sbinkertn@umich.edu default: 704484Sbinkertn@umich.edu fatal("Unknown/unsupported operating system."); 714484Sbinkertn@umich.edu } 724484Sbinkertn@umich.edu 734484Sbinkertn@umich.edu if (process == NULL) 744484Sbinkertn@umich.edu fatal("Unknown error creating process object."); 754484Sbinkertn@umich.edu return process; 764484Sbinkertn@umich.edu} 774484Sbinkertn@umich.edu 784484Sbinkertn@umich.eduMipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile, 794484Sbinkertn@umich.edu System *_system, int stdin_fd, int stdout_fd, int stderr_fd, 804484Sbinkertn@umich.edu std::vector<std::string> &argv, std::vector<std::string> &envp) 814484Sbinkertn@umich.edu : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd, 824484Sbinkertn@umich.edu argv, envp) 834484Sbinkertn@umich.edu{ 844484Sbinkertn@umich.edu // Set up stack. On MIPS, stack starts at the top of kuseg 854484Sbinkertn@umich.edu // user address space. MIPS stack grows down from here 864484Sbinkertn@umich.edu stack_base = 0x7FFFFFFF; 874484Sbinkertn@umich.edu 884484Sbinkertn@umich.edu // Set pointer for next thread stack. Reserve 8M for main stack. 894484Sbinkertn@umich.edu next_thread_stack_base = stack_base - (8 * 1024 * 1024); 90 91 // Set up break point (Top of Heap) 92 brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 93 brk_point = roundUp(brk_point, VMPageSize); 94 95 // Set up region for mmaps. For now, start at bottom of kuseg space. 96 mmap_start = mmap_end = 0x10000; 97} 98 99void 100MipsLiveProcess::startup() 101{ 102 argsInit(MachineBytes, VMPageSize); 103} 104 105 106 107 108BEGIN_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess) 109 110 VectorParam<string> cmd; 111 Param<string> executable; 112 Param<string> input; 113 Param<string> output; 114 VectorParam<string> env; 115 SimObjectParam<System *> system; 116 117END_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess) 118 119 120BEGIN_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess) 121 122 INIT_PARAM(cmd, "command line (executable plus arguments)"), 123 INIT_PARAM(executable, "executable (overrides cmd[0] if set)"), 124 INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"), 125 INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"), 126 INIT_PARAM(env, "environment settings"), 127 INIT_PARAM(system, "system") 128 129END_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess) 130 131 132CREATE_SIM_OBJECT(MipsLiveProcess) 133{ 134 string in = input; 135 string out = output; 136 137 // initialize file descriptors to default: same as simulator 138 int stdin_fd, stdout_fd, stderr_fd; 139 140 if (in == "stdin" || in == "cin") 141 stdin_fd = STDIN_FILENO; 142 else 143 stdin_fd = Process::openInputFile(input); 144 145 if (out == "stdout" || out == "cout") 146 stdout_fd = STDOUT_FILENO; 147 else if (out == "stderr" || out == "cerr") 148 stdout_fd = STDERR_FILENO; 149 else 150 stdout_fd = Process::openOutputFile(out); 151 152 stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; 153 154 return MipsLiveProcess::create(getInstanceName(), system, 155 stdin_fd, stdout_fd, stderr_fd, 156 (string)executable == "" ? cmd[0] : executable, 157 cmd, env); 158} 159 160 161REGISTER_SIM_OBJECT("MipsLiveProcess", MipsLiveProcess) 162 163 164