stacktrace.cc revision 8852
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 "mem/fs_translating_port_proxy.hh" 41#include "sim/system.hh" 42 43using namespace std; 44namespace ArmISA 45{ 46 ProcessInfo::ProcessInfo(ThreadContext *_tc) 47 : tc(_tc) 48 { 49 Addr addr = 0; 50 51 FSTranslatingPortProxy &vp = tc->getVirtProxy(); 52 53 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr)) 54 panic("thread info not compiled into kernel\n"); 55 thread_info_size = vp.readGtoH<int32_t>(addr); 56 57 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr)) 58 panic("thread info not compiled into kernel\n"); 59 task_struct_size = vp.readGtoH<int32_t>(addr); 60 61 if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr)) 62 panic("thread info not compiled into kernel\n"); 63 task_off = vp.readGtoH<int32_t>(addr); 64 65 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr)) 66 panic("thread info not compiled into kernel\n"); 67 pid_off = vp.readGtoH<int32_t>(addr); 68 69 if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr)) 70 panic("thread info not compiled into kernel\n"); 71 name_off = vp.readGtoH<int32_t>(addr); 72 } 73 74 Addr 75 ProcessInfo::task(Addr ksp) const 76 { 77 return 0; 78 } 79 80 int 81 ProcessInfo::pid(Addr ksp) const 82 { 83 return -1; 84 } 85 86 string 87 ProcessInfo::name(Addr ksp) const 88 { 89 return "Implement me"; 90 } 91 92 StackTrace::StackTrace() 93 : tc(0), stack(64) 94 { 95 } 96 97 StackTrace::StackTrace(ThreadContext *_tc, StaticInstPtr inst) 98 : tc(0), stack(64) 99 { 100 trace(_tc, inst); 101 } 102 103 StackTrace::~StackTrace() 104 { 105 } 106 107 void 108 StackTrace::trace(ThreadContext *_tc, bool is_call) 109 { 110 } 111 112 bool 113 StackTrace::isEntry(Addr addr) 114 { 115 return false; 116 } 117 118 bool 119 StackTrace::decodeStack(MachInst inst, int &disp) 120 { 121 return false; 122 } 123 124 bool 125 StackTrace::decodeSave(MachInst inst, int ®, int &disp) 126 { 127 return false; 128 } 129 130 /* 131 * Decode the function prologue for the function we're in, and note 132 * which registers are stored where, and how large the stack frame is. 133 */ 134 bool 135 StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func, 136 int &size, Addr &ra) 137 { 138 return false; 139 } 140 141#if TRACING_ON 142 void 143 StackTrace::dump() 144 { 145 DPRINTFN("------ Stack ------\n"); 146 147 DPRINTFN(" Not implemented\n"); 148 } 149#endif 150} 151