stacktrace.cc revision 11320
13558SN/A/* 23558SN/A * Copyright (c) 2005 The Regents of The University of Michigan 33558SN/A * All rights reserved. 43558SN/A * 53558SN/A * Redistribution and use in source and binary forms, with or without 63558SN/A * modification, are permitted provided that the following conditions are 73558SN/A * met: redistributions of source code must retain the above copyright 83558SN/A * notice, this list of conditions and the following disclaimer; 93558SN/A * redistributions in binary form must reproduce the above copyright 103558SN/A * notice, this list of conditions and the following disclaimer in the 113558SN/A * documentation and/or other materials provided with the distribution; 123558SN/A * neither the name of the copyright holders nor the names of its 133558SN/A * contributors may be used to endorse or promote products derived from 143558SN/A * this software without specific prior written permission. 153558SN/A * 163558SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173558SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183558SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193558SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203558SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213558SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223558SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233558SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243558SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253558SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263558SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273558SN/A * 283558SN/A * Authors: Nathan Binkert 293558SN/A */ 303558SN/A 313558SN/A#include <string> 323558SN/A 336757SAli.Saidi@ARM.com#include "arch/arm/isa_traits.hh" 346757SAli.Saidi@ARM.com#include "arch/arm/stacktrace.hh" 356757SAli.Saidi@ARM.com#include "arch/arm/vtophys.hh" 363558SN/A#include "base/bitfield.hh" 373558SN/A#include "base/trace.hh" 383558SN/A#include "cpu/base.hh" 393558SN/A#include "cpu/thread_context.hh" 408706Sandreas.hansson@arm.com#include "mem/fs_translating_port_proxy.hh" 413558SN/A#include "sim/system.hh" 423558SN/A 433558SN/Ausing namespace std; 446757SAli.Saidi@ARM.comnamespace ArmISA 453570SN/A{ 463570SN/A ProcessInfo::ProcessInfo(ThreadContext *_tc) 473570SN/A : tc(_tc) 483570SN/A { 493570SN/A Addr addr = 0; 503558SN/A 518852Sandreas.hansson@arm.com FSTranslatingPortProxy &vp = tc->getVirtProxy(); 523558SN/A 533570SN/A if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_size", addr)) 543570SN/A panic("thread info not compiled into kernel\n"); 558852Sandreas.hansson@arm.com thread_info_size = vp.readGtoH<int32_t>(addr); 563558SN/A 573570SN/A if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_size", addr)) 583570SN/A panic("thread info not compiled into kernel\n"); 598852Sandreas.hansson@arm.com task_struct_size = vp.readGtoH<int32_t>(addr); 603558SN/A 613570SN/A if (!tc->getSystemPtr()->kernelSymtab->findAddress("thread_info_task", addr)) 623570SN/A panic("thread info not compiled into kernel\n"); 638852Sandreas.hansson@arm.com task_off = vp.readGtoH<int32_t>(addr); 643558SN/A 653570SN/A if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_pid", addr)) 663570SN/A panic("thread info not compiled into kernel\n"); 678852Sandreas.hansson@arm.com pid_off = vp.readGtoH<int32_t>(addr); 683558SN/A 693570SN/A if (!tc->getSystemPtr()->kernelSymtab->findAddress("task_struct_comm", addr)) 703570SN/A panic("thread info not compiled into kernel\n"); 718852Sandreas.hansson@arm.com name_off = vp.readGtoH<int32_t>(addr); 723558SN/A } 733558SN/A 743570SN/A Addr 753570SN/A ProcessInfo::task(Addr ksp) const 763570SN/A { 779069Satgutier@umich.edu Addr base = ksp & ~0x1fff; 789069Satgutier@umich.edu if (base == ULL(0xffffffffc0000000)) 799069Satgutier@umich.edu return 0; 809069Satgutier@umich.edu 819069Satgutier@umich.edu Addr tsk; 829069Satgutier@umich.edu 839069Satgutier@umich.edu FSTranslatingPortProxy &vp = tc->getVirtProxy(); 849069Satgutier@umich.edu tsk = vp.readGtoH<Addr>(base + task_off); 859069Satgutier@umich.edu 869069Satgutier@umich.edu return tsk; 873558SN/A } 883558SN/A 893570SN/A int 903570SN/A ProcessInfo::pid(Addr ksp) const 913570SN/A { 929069Satgutier@umich.edu Addr task = this->task(ksp); 939069Satgutier@umich.edu if (!task) 949069Satgutier@umich.edu return -1; 959069Satgutier@umich.edu 969069Satgutier@umich.edu uint16_t pd; 979069Satgutier@umich.edu 989069Satgutier@umich.edu FSTranslatingPortProxy &vp = tc->getVirtProxy(); 999069Satgutier@umich.edu pd = vp.readGtoH<uint16_t>(task + pid_off); 1009069Satgutier@umich.edu 1019069Satgutier@umich.edu return pd; 1023558SN/A } 1033558SN/A 1043570SN/A string 1053570SN/A ProcessInfo::name(Addr ksp) const 1063570SN/A { 1079069Satgutier@umich.edu Addr task = this->task(ksp); 1089069Satgutier@umich.edu if (!task) 1099069Satgutier@umich.edu return "unknown"; 1109069Satgutier@umich.edu 1119069Satgutier@umich.edu char comm[256]; 1129069Satgutier@umich.edu CopyStringOut(tc, comm, task + name_off, sizeof(comm)); 1139069Satgutier@umich.edu if (!comm[0]) 1149069Satgutier@umich.edu return "startup"; 1159069Satgutier@umich.edu 1169069Satgutier@umich.edu return comm; 1173570SN/A } 1183558SN/A 1193570SN/A StackTrace::StackTrace() 1203570SN/A : tc(0), stack(64) 1213570SN/A { 1223570SN/A } 1233570SN/A 12410417Sandreas.hansson@arm.com StackTrace::StackTrace(ThreadContext *_tc, const StaticInstPtr &inst) 1253570SN/A : tc(0), stack(64) 1263570SN/A { 1273570SN/A trace(_tc, inst); 1283570SN/A } 1293570SN/A 1303570SN/A StackTrace::~StackTrace() 1313570SN/A { 1323570SN/A } 1333570SN/A 1343570SN/A void 1353570SN/A StackTrace::trace(ThreadContext *_tc, bool is_call) 1363570SN/A { 1373558SN/A } 1383558SN/A 1393570SN/A bool 1403570SN/A StackTrace::isEntry(Addr addr) 1413570SN/A { 1423558SN/A return false; 1433558SN/A } 1443558SN/A 1453570SN/A bool 1463570SN/A StackTrace::decodeStack(MachInst inst, int &disp) 1473570SN/A { 1486757SAli.Saidi@ARM.com return false; 1493570SN/A } 1503570SN/A 1513570SN/A bool 1523570SN/A StackTrace::decodeSave(MachInst inst, int ®, int &disp) 1533570SN/A { 1546757SAli.Saidi@ARM.com return false; 1553570SN/A } 1563570SN/A 1573570SN/A /* 1583570SN/A * Decode the function prologue for the function we're in, and note 1593570SN/A * which registers are stored where, and how large the stack frame is. 1603570SN/A */ 1613570SN/A bool 1623570SN/A StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func, 1633570SN/A int &size, Addr &ra) 1643570SN/A { 1656757SAli.Saidi@ARM.com return false; 1663558SN/A } 1673558SN/A 1683570SN/A#if TRACING_ON 1693570SN/A void 1703570SN/A StackTrace::dump() 1713570SN/A { 1723570SN/A DPRINTFN("------ Stack ------\n"); 17311320Ssteve.reinhardt@amd.com 1746757SAli.Saidi@ARM.com DPRINTFN(" Not implemented\n"); 1753570SN/A } 1763570SN/A#endif 1773558SN/A} 178