process.cc revision 5222:bb733a878f85
1/* 2 * Copyright N) 2007 MIPS Technologies, Inc. All Rights Reserved 3 * 4 * This software is part of the M5 simulator. 5 * 6 * THIS IS A LEGAL AGREEMENT. BY DOWNLOADING, USING, COPYING, CREATING 7 * DERIVATIVE WORKS, AND/OR DISTRIBUTING THIS SOFTWARE YOU ARE AGREEING 8 * TO THESE TERMS AND CONDITIONS. 9 * 10 * Permission is granted to use, copy, create derivative works and 11 * distribute this software and such derivative works for any purpose, 12 * so long as (1) the copyright notice above, this grant of permission, 13 * and the disclaimer below appear in all copies and derivative works 14 * made, (2) the copyright notice above is augmented as appropriate to 15 * reflect the addition of any new copyrightable work in a derivative 16 * work (e.g., Copyright N) <Publication Year> Copyright Owner), and (3) 17 * the name of MIPS Technologies, Inc. ($(B!H(BMIPS$(B!I(B) is not used in any 18 * advertising or publicity pertaining to the use or distribution of 19 * this software without specific, written prior authorization. 20 * 21 * THIS SOFTWARE IS PROVIDED $(B!H(BAS IS.$(B!I(B MIPS MAKES NO WARRANTIES AND 22 * DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, STATUTORY, IMPLIED OR 23 * OTHERWISE, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND 25 * NON-INFRINGEMENT OF THIRD PARTY RIGHTS, REGARDING THIS SOFTWARE. 26 * IN NO EVENT SHALL MIPS BE LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, 27 * INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE DAMAGES OF 28 * ANY KIND OR NATURE, ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, 29 * THIS SOFTWARE AND/OR THE USE OF THIS SOFTWARE, WHETHER SUCH LIABILITY 30 * IS ASSERTED ON THE BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE OR 31 * STRICT LIABILITY), OR OTHERWISE, EVEN IF MIPS HAS BEEN WARNED OF THE 32 * POSSIBILITY OF ANY SUCH LOSS OR DAMAGE IN ADVANCE. 33 * 34 * Authors: Gabe M. Black 35 * Ali G. Saidi 36 * Korey L. Sewell 37 */ 38 39#include "arch/mips/isa_traits.hh" 40#include "arch/mips/process.hh" 41#include "base/loader/object_file.hh" 42#include "base/misc.hh" 43#include "cpu/thread_context.hh" 44#include "sim/system.hh" 45 46using namespace std; 47using namespace MipsISA; 48 49MipsLiveProcess::MipsLiveProcess(LiveProcessParams * params, 50 ObjectFile *objFile) 51 : LiveProcess(params, objFile) 52{ 53 // Set up stack. On MIPS, stack starts at the top of kuseg 54 // user address space. MIPS stack grows down from here 55 stack_base = 0x7FFFFFFF; 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 // Set up break point (Top of Heap) 61 brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize(); 62 brk_point = roundUp(brk_point, VMPageSize); 63 64 // Set up region for mmaps. For now, start at bottom of kuseg space. 65 mmap_start = mmap_end = 0x10000; 66} 67 68void 69MipsLiveProcess::startup() 70{ 71 argsInit(MachineBytes, VMPageSize); 72} 73