stacktrace.hh revision 2680
12246SN/A/* 22246SN/A * Copyright (c) 2005 The Regents of The University of Michigan 32246SN/A * All rights reserved. 42246SN/A * 52246SN/A * Redistribution and use in source and binary forms, with or without 62246SN/A * modification, are permitted provided that the following conditions are 72246SN/A * met: redistributions of source code must retain the above copyright 82246SN/A * notice, this list of conditions and the following disclaimer; 92246SN/A * redistributions in binary form must reproduce the above copyright 102246SN/A * notice, this list of conditions and the following disclaimer in the 112246SN/A * documentation and/or other materials provided with the distribution; 122246SN/A * neither the name of the copyright holders nor the names of its 132246SN/A * contributors may be used to endorse or promote products derived from 142246SN/A * this software without specific prior written permission. 152246SN/A * 162246SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172246SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182246SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192246SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202246SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212246SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222246SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232246SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242246SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252246SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262246SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 292246SN/A */ 302246SN/A 312246SN/A#ifndef __ARCH_ALPHA_STACKTRACE_HH__ 322246SN/A#define __ARCH_ALPHA_STACKTRACE_HH__ 332246SN/A 342246SN/A#include "base/trace.hh" 352246SN/A#include "cpu/static_inst.hh" 362246SN/A 372680Sktlim@umich.educlass ThreadContext; 382246SN/Aclass StackTrace; 392246SN/A 402246SN/Aclass ProcessInfo 412246SN/A{ 422246SN/A private: 432680Sktlim@umich.edu ThreadContext *tc; 442246SN/A 452246SN/A int thread_info_size; 462246SN/A int task_struct_size; 472246SN/A int task_off; 482246SN/A int pid_off; 492246SN/A int name_off; 502246SN/A 512246SN/A public: 522680Sktlim@umich.edu ProcessInfo(ThreadContext *_tc); 532246SN/A 542246SN/A Addr task(Addr ksp) const; 552246SN/A int pid(Addr ksp) const; 562246SN/A std::string name(Addr ksp) const; 572246SN/A}; 582246SN/A 592246SN/Aclass StackTrace 602246SN/A{ 612246SN/A protected: 622246SN/A typedef TheISA::MachInst MachInst; 632246SN/A private: 642680Sktlim@umich.edu ThreadContext *tc; 652246SN/A std::vector<Addr> stack; 662246SN/A 672246SN/A private: 682246SN/A bool isEntry(Addr addr); 692246SN/A bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra); 702246SN/A bool decodeSave(MachInst inst, int ®, int &disp); 712246SN/A bool decodeStack(MachInst inst, int &disp); 722246SN/A 732680Sktlim@umich.edu void trace(ThreadContext *tc, bool is_call); 742246SN/A 752246SN/A public: 762246SN/A StackTrace(); 772680Sktlim@umich.edu StackTrace(ThreadContext *tc, StaticInstPtr inst); 782246SN/A ~StackTrace(); 792246SN/A 802246SN/A void clear() 812246SN/A { 822680Sktlim@umich.edu tc = 0; 832246SN/A stack.clear(); 842246SN/A } 852246SN/A 862680Sktlim@umich.edu bool valid() const { return tc != NULL; } 872680Sktlim@umich.edu bool trace(ThreadContext *tc, StaticInstPtr inst); 882246SN/A 892246SN/A public: 902246SN/A const std::vector<Addr> &getstack() const { return stack; } 912246SN/A 922246SN/A static const int user = 1; 932246SN/A static const int console = 2; 942246SN/A static const int unknown = 3; 952246SN/A 962246SN/A#if TRACING_ON 972246SN/A private: 982246SN/A void dump(); 992246SN/A 1002246SN/A public: 1012246SN/A void dprintf() { if (DTRACE(Stack)) dump(); } 1022246SN/A#else 1032246SN/A public: 1042246SN/A void dprintf() {} 1052246SN/A#endif 1062246SN/A}; 1072246SN/A 1082246SN/Ainline bool 1092680Sktlim@umich.eduStackTrace::trace(ThreadContext *tc, StaticInstPtr inst) 1102246SN/A{ 1112246SN/A if (!inst->isCall() && !inst->isReturn()) 1122246SN/A return false; 1132246SN/A 1142246SN/A if (valid()) 1152246SN/A clear(); 1162246SN/A 1172680Sktlim@umich.edu trace(tc, !inst->isReturn()); 1182246SN/A return true; 1192246SN/A} 1202246SN/A 1212246SN/A#endif // __ARCH_ALPHA_STACKTRACE_HH__ 122