stacktrace.cc revision 6757:d86d3d6e5326
1/* 2 * Copyright (c) 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: Nathan Binkert 29 */ 30 31#include <string> 32 33#include "arch/arm/isa_traits.hh" 34#include "arch/arm/stacktrace.hh" 35#include "arch/arm/vtophys.hh" 36#include "base/bitfield.hh" 37#include "base/trace.hh" 38#include "cpu/base.hh" 39#include "cpu/thread_context.hh" 40#include "sim/system.hh" 41 42using namespace std; 43namespace ArmISA 44{ 45 ProcessInfo::ProcessInfo(ThreadContext *_tc) 46 : tc(_tc) 47 { 48 Addr addr = 0; 49 50 VirtualPort *vp; 51 52 vp = tc->getVirtPort(); 53 54 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr)) 55 panic("thread info not compiled into kernel\n"); 56 thread_info_size = vp->readGtoH<int32_t>(addr); 57 58 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr)) 59 panic("thread info not compiled into kernel\n"); 60 task_struct_size = vp->readGtoH<int32_t>(addr); 61 62 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr)) 63 panic("thread info not compiled into kernel\n"); 64 task_off = vp->readGtoH<int32_t>(addr); 65 66 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr)) 67 panic("thread info not compiled into kernel\n"); 68 pid_off = vp->readGtoH<int32_t>(addr); 69 70 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr)) 71 panic("thread info not compiled into kernel\n"); 72 name_off = vp->readGtoH<int32_t>(addr); 73 } 74 75 Addr 76 ProcessInfo::task(Addr ksp) const 77 { 78 return 0; 79 } 80 81 int 82 ProcessInfo::pid(Addr ksp) const 83 { 84 return -1; 85 } 86 87 string 88 ProcessInfo::name(Addr ksp) const 89 { 90 return "Implement me"; 91 } 92 93 StackTrace::StackTrace() 94 : tc(0), stack(64) 95 { 96 } 97 98 StackTrace::StackTrace(ThreadContext *_tc, StaticInstPtr inst) 99 : tc(0), stack(64) 100 { 101 trace(_tc, inst); 102 } 103 104 StackTrace::~StackTrace() 105 { 106 } 107 108 void 109 StackTrace::trace(ThreadContext *_tc, bool is_call) 110 { 111 } 112 113 bool 114 StackTrace::isEntry(Addr addr) 115 { 116 return false; 117 } 118 119 bool 120 StackTrace::decodeStack(MachInst inst, int &disp) 121 { 122 return false; 123 } 124 125 bool 126 StackTrace::decodeSave(MachInst inst, int ®, int &disp) 127 { 128 return false; 129 } 130 131 /* 132 * Decode the function prologue for the function we're in, and note 133 * which registers are stored where, and how large the stack frame is. 134 */ 135 bool 136 StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func, 137 int &size, Addr &ra) 138 { 139 return false; 140 } 141 142#if TRACING_ON 143 void 144 StackTrace::dump() 145 { 146 DPRINTFN("------ Stack ------\n"); 147 148 DPRINTFN(" Not implemented\n"); 149 } 150#endif 151} 152