process.cc revision 4188
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/isa_traits.hh" 34#include "arch/sparc/linux/process.hh" 35#include "arch/sparc/regfile.hh" 36 37#include "base/trace.hh" 38#include "cpu/thread_context.hh" 39#include "kern/linux/linux.hh" 40 41#include "sim/process.hh" 42#include "sim/syscall_emul.hh" 43 44using namespace std; 45using namespace SparcISA; 46 47SyscallDesc* 48SparcLinuxProcess::getDesc(int callnum) 49{ 50 if (callnum < 0 || callnum > Num_Syscall_Descs) 51 return NULL; 52 return &syscallDescs[callnum]; 53} 54 55SyscallDesc* 56SparcLinuxProcess::getDesc32(int callnum) 57{ 58 if (callnum < 0 || callnum > Num_Syscall32_Descs) 59 return NULL; 60 return &syscall32Descs[callnum]; 61} 62 63SparcLinuxProcess::SparcLinuxProcess() : 64 Num_Syscall_Descs(284), //sizeof(syscallDescs) / sizeof(SyscallDesc)), 65 Num_Syscall32_Descs(299) //sizeof(syscall32Descs) / sizeof(SyscallDesc)) 66{ 67 // The sparc syscall table must be <= 284 entries because that is all there 68 // is space for. 69 assert(Num_Syscall_Descs <= 284); 70 // The sparc 32 bit syscall table bust be <= 299 entries because that is 71 // all there is space for. 72 assert(Num_Syscall_Descs <= 299); 73} 74 75Sparc32LinuxProcess::Sparc32LinuxProcess(const std::string &name, 76 ObjectFile *objFile, 77 System * system, 78 int stdin_fd, 79 int stdout_fd, 80 int stderr_fd, 81 std::vector<std::string> &argv, 82 std::vector<std::string> &envp, 83 const std::string &cwd, 84 uint64_t _uid, uint64_t _euid, 85 uint64_t _gid, uint64_t _egid, 86 uint64_t _pid, uint64_t _ppid) 87 : Sparc32LiveProcess(name, objFile, system, 88 stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd, 89 _uid, _euid, _gid, _egid, _pid, _ppid) 90{} 91 92void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc) 93{ 94 switch(trapNum) 95 { 96 case 0x10: //Linux 32 bit syscall trap 97 tc->syscall(tc->readIntReg(1)); 98 break; 99 default: 100 SparcLiveProcess::handleTrap(trapNum, tc); 101 } 102} 103 104Sparc64LinuxProcess::Sparc64LinuxProcess(const std::string &name, 105 ObjectFile *objFile, 106 System * system, 107 int stdin_fd, 108 int stdout_fd, 109 int stderr_fd, 110 std::vector<std::string> &argv, 111 std::vector<std::string> &envp, 112 const std::string &cwd, 113 uint64_t _uid, uint64_t _euid, 114 uint64_t _gid, uint64_t _egid, 115 uint64_t _pid, uint64_t _ppid) 116 : Sparc64LiveProcess(name, objFile, system, 117 stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd, 118 _uid, _euid, _gid, _egid, _pid, _ppid) 119{} 120 121void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc) 122{ 123 switch(trapNum) 124 { 125 //case 0x10: //Linux 32 bit syscall trap 126 case 0x6d: //Linux 64 bit syscall trap 127 tc->syscall(tc->readIntReg(1)); 128 break; 129 default: 130 SparcLiveProcess::handleTrap(trapNum, tc); 131 } 132} 133