process.cc revision 8229
1/* 2 * Copyright (c) 2003-2005 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: Steve Reinhardt 29 * Gabe Black 30 * Ali Saidi 31 */ 32 33#include "arch/sparc/linux/process.hh" 34#include "arch/sparc/isa_traits.hh" 35#include "arch/sparc/registers.hh" 36#include "base/trace.hh" 37#include "cpu/thread_context.hh" 38#include "kern/linux/linux.hh" 39#include "sim/process.hh" 40#include "sim/syscall_emul.hh" 41 42using namespace std; 43using namespace SparcISA; 44 45SyscallDesc* 46SparcLinuxProcess::getDesc(int callnum) 47{ 48 if (callnum < 0 || callnum >= Num_Syscall_Descs) 49 return NULL; 50 return &syscallDescs[callnum]; 51} 52 53SyscallDesc* 54SparcLinuxProcess::getDesc32(int callnum) 55{ 56 if (callnum < 0 || callnum >= Num_Syscall32_Descs) 57 return NULL; 58 return &syscall32Descs[callnum]; 59} 60 61Sparc32LinuxProcess::Sparc32LinuxProcess(LiveProcessParams * params, 62 ObjectFile *objFile) 63 : Sparc32LiveProcess(params, objFile) 64{} 65 66void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc) 67{ 68 switch (trapNum) { 69 case 0x10: //Linux 32 bit syscall trap 70 tc->syscall(tc->readIntReg(1)); 71 break; 72 default: 73 SparcLiveProcess::handleTrap(trapNum, tc); 74 } 75} 76 77Sparc64LinuxProcess::Sparc64LinuxProcess(LiveProcessParams * params, 78 ObjectFile *objFile) 79 : Sparc64LiveProcess(params, objFile) 80{} 81 82void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc) 83{ 84 switch (trapNum) { 85 // case 0x10: // Linux 32 bit syscall trap 86 case 0x6d: // Linux 64 bit syscall trap 87 tc->syscall(tc->readIntReg(1)); 88 break; 89 default: 90 SparcLiveProcess::handleTrap(trapNum, tc); 91 } 92} 93