process.cc revision 2935
1 2/* 3 * Copyright (c) 2003-2004 The Regents of The University of Michigan 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer; 10 * redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution; 13 * neither the name of the copyright holders nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * Authors: Gabe Black 30 * Ali Saidi 31 * Korey Sewell 32 */ 33 34#include "arch/mips/isa_traits.hh" 35#include "arch/mips/process.hh" 36#include "base/loader/object_file.hh" 37#include "base/misc.hh" 38#include "cpu/thread_context.hh" 39#include "sim/system.hh" 40 41using namespace std; 42using namespace MipsISA; 43 44MipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile, 45 System *_system, int stdin_fd, int stdout_fd, int stderr_fd, 46 std::vector<std::string> &argv, std::vector<std::string> &envp) 47 : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd, 48 argv, envp) 49{ 50 // Set up stack. On MIPS, stack starts at the top of kuseg 51 // user address space. MIPS stack grows down from here 52 stack_base = 0x7FFFFFFF; 53 54 // Set pointer for next thread stack. Reserve 8M for main stack. 55 next_thread_stack_base = stack_base - (8 * 1024 * 1024); 56 57 // Set up break point (Top of Heap) 58 brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 59 brk_point = roundUp(brk_point, VMPageSize); 60 61 // Set up region for mmaps. For now, start at bottom of kuseg space. 62 mmap_start = mmap_end = 0x10000; 63} 64 65void 66MipsLiveProcess::startup() 67{ 68 argsInit(MachineBytes, VMPageSize); 69} 70