stacktrace.hh revision 2745
12239SN/A/* 22239SN/A * Copyright (c) 2005 The Regents of The University of Michigan 32239SN/A * All rights reserved. 42239SN/A * 52239SN/A * Redistribution and use in source and binary forms, with or without 62239SN/A * modification, are permitted provided that the following conditions are 72239SN/A * met: redistributions of source code must retain the above copyright 82239SN/A * notice, this list of conditions and the following disclaimer; 92239SN/A * redistributions in binary form must reproduce the above copyright 102239SN/A * notice, this list of conditions and the following disclaimer in the 112239SN/A * documentation and/or other materials provided with the distribution; 122239SN/A * neither the name of the copyright holders nor the names of its 132239SN/A * contributors may be used to endorse or promote products derived from 142239SN/A * this software without specific prior written permission. 152239SN/A * 162239SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172239SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182239SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192239SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202239SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212239SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222239SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232239SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242239SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252239SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262239SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Korey Sewell 292239SN/A */ 302239SN/A 312745Sksewell@umich.edu#ifndef __ARCH_MIPS_STACKTRACE_HH__ 322745Sksewell@umich.edu#define __ARCH_MIPS_STACKTRACE_HH__ 332239SN/A 342239SN/A#include "base/trace.hh" 352239SN/A#include "cpu/static_inst.hh" 362239SN/A 372680Sktlim@umich.educlass ThreadContext; 382239SN/Aclass StackTrace; 392239SN/A 402239SN/Aclass ProcessInfo 412239SN/A{ 422239SN/A private: 432680Sktlim@umich.edu ThreadContext *tc; 442239SN/A 452239SN/A int thread_info_size; 462239SN/A int task_struct_size; 472239SN/A int task_off; 482239SN/A int pid_off; 492239SN/A int name_off; 502239SN/A 512239SN/A public: 522680Sktlim@umich.edu ProcessInfo(ThreadContext *_tc); 532239SN/A 542239SN/A Addr task(Addr ksp) const; 552239SN/A int pid(Addr ksp) const; 562239SN/A std::string name(Addr ksp) const; 572239SN/A}; 582239SN/A 592239SN/Aclass StackTrace 602239SN/A{ 612239SN/A protected: 622239SN/A typedef TheISA::MachInst MachInst; 632239SN/A private: 642680Sktlim@umich.edu ThreadContext *tc; 652239SN/A std::vector<Addr> stack; 662239SN/A 672239SN/A private: 682239SN/A bool isEntry(Addr addr); 692239SN/A bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra); 702239SN/A bool decodeSave(MachInst inst, int ®, int &disp); 712239SN/A bool decodeStack(MachInst inst, int &disp); 722239SN/A 732680Sktlim@umich.edu void trace(ThreadContext *tc, bool is_call); 742239SN/A 752239SN/A public: 762239SN/A StackTrace(); 772680Sktlim@umich.edu StackTrace(ThreadContext *tc, StaticInstPtr inst); 782239SN/A ~StackTrace(); 792239SN/A 802239SN/A void clear() 812239SN/A { 822680Sktlim@umich.edu tc = 0; 832239SN/A stack.clear(); 842239SN/A } 852239SN/A 862680Sktlim@umich.edu bool valid() const { return tc != NULL; } 872680Sktlim@umich.edu bool trace(ThreadContext *tc, StaticInstPtr inst); 882239SN/A 892239SN/A public: 902239SN/A const std::vector<Addr> &getstack() const { return stack; } 912239SN/A 922239SN/A static const int user = 1; 932239SN/A static const int console = 2; 942239SN/A static const int unknown = 3; 952239SN/A 962239SN/A#if TRACING_ON 972239SN/A private: 982239SN/A void dump(); 992239SN/A 1002239SN/A public: 1012239SN/A void dprintf() { if (DTRACE(Stack)) dump(); } 1022239SN/A#else 1032239SN/A public: 1042239SN/A void dprintf() {} 1052239SN/A#endif 1062239SN/A}; 1072239SN/A 1082239SN/Ainline bool 1092680Sktlim@umich.eduStackTrace::trace(ThreadContext *tc, StaticInstPtr inst) 1102239SN/A{ 1112239SN/A if (!inst->isCall() && !inst->isReturn()) 1122239SN/A return false; 1132239SN/A 1142239SN/A if (valid()) 1152239SN/A clear(); 1162239SN/A 1172680Sktlim@umich.edu trace(tc, !inst->isReturn()); 1182239SN/A return true; 1192239SN/A} 1202239SN/A 1212745Sksewell@umich.edu#endif // __ARCH_MIPS_STACKTRACE_HH__ 122