process.cc revision 5569
1/* 2 * Copyright (c) 2003-2004 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 * Ali Saidi 30 */ 31 32#include "arch/alpha/isa_traits.hh" 33#include "arch/alpha/process.hh" 34#include "base/loader/object_file.hh" 35#include "base/misc.hh" 36#include "cpu/thread_context.hh" 37#include "sim/system.hh" 38 39using namespace AlphaISA; 40using namespace std; 41 42AlphaLiveProcess::AlphaLiveProcess(LiveProcessParams *params, 43 ObjectFile *objFile) 44 : LiveProcess(params, objFile) 45{ 46 brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 47 brk_point = roundUp(brk_point, VMPageSize); 48 49 // Set up stack. On Alpha, stack goes below text section. This 50 // code should get moved to some architecture-specific spot. 51 stack_base = objFile->textBase() - (409600+4096); 52 53 // Set up region for mmaps. Tru64 seems to start just above 0 and 54 // grow up from there. 55 mmap_start = mmap_end = 0x10000; 56 57 // Set pointer for next thread stack. Reserve 8M for main stack. 58 next_thread_stack_base = stack_base - (8 * 1024 * 1024); 59 60} 61 62void 63AlphaLiveProcess::startup() 64{ 65 if (checkpointRestored) 66 return; 67 68 argsInit(MachineBytes, VMPageSize); 69 70 threadContexts[0]->setIntReg(GlobalPointerReg, objFile->globalPointer()); 71 //Opperate in user mode 72 threadContexts[0]->setMiscRegNoEffect(IPR_ICM, 0x18); 73 //No super page mapping 74 threadContexts[0]->setMiscRegNoEffect(IPR_MCSR, 0); 75 //Set this to 0 for now, but it should be unique for each process 76 threadContexts[0]->setMiscRegNoEffect(IPR_DTB_ASN, M5_pid << 57); 77} 78 79