eddac53ff6
At the same time, rename the trace flags to debug flags since they have broader usage than simply tracing. This means that --trace-flags is now --debug-flags and --trace-help is now --debug-help
123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
/*
|
|
* Copyright (c) 2005 The Regents of The University of Michigan
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met: redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer;
|
|
* redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution;
|
|
* neither the name of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* Authors: Nathan Binkert
|
|
*/
|
|
|
|
#ifndef __ARCH_ARM_STACKTRACE_HH__
|
|
#define __ARCH_ARM_STACKTRACE_HH__
|
|
|
|
#include "base/trace.hh"
|
|
#include "cpu/static_inst.hh"
|
|
#include "debug/Stack.hh"
|
|
|
|
class ThreadContext;
|
|
namespace ArmISA
|
|
{
|
|
|
|
class StackTrace;
|
|
|
|
class ProcessInfo
|
|
{
|
|
private:
|
|
ThreadContext *tc;
|
|
|
|
int thread_info_size;
|
|
int task_struct_size;
|
|
int task_off;
|
|
int pid_off;
|
|
int name_off;
|
|
|
|
public:
|
|
ProcessInfo(ThreadContext *_tc);
|
|
|
|
Addr task(Addr ksp) const;
|
|
int pid(Addr ksp) const;
|
|
std::string name(Addr ksp) const;
|
|
};
|
|
|
|
class StackTrace
|
|
{
|
|
protected:
|
|
typedef ArmISA::MachInst MachInst;
|
|
private:
|
|
ThreadContext *tc;
|
|
std::vector<Addr> stack;
|
|
|
|
private:
|
|
bool isEntry(Addr addr);
|
|
bool decodePrologue(Addr sp, Addr callpc, Addr func, int &size, Addr &ra);
|
|
bool decodeSave(MachInst inst, int ®, int &disp);
|
|
bool decodeStack(MachInst inst, int &disp);
|
|
|
|
void trace(ThreadContext *tc, bool is_call);
|
|
|
|
public:
|
|
StackTrace();
|
|
StackTrace(ThreadContext *tc, StaticInstPtr inst);
|
|
~StackTrace();
|
|
|
|
void clear()
|
|
{
|
|
tc = 0;
|
|
stack.clear();
|
|
}
|
|
|
|
bool valid() const { return tc != NULL; }
|
|
bool trace(ThreadContext *tc, StaticInstPtr inst);
|
|
|
|
public:
|
|
const std::vector<Addr> &getstack() const { return stack; }
|
|
|
|
#if TRACING_ON
|
|
private:
|
|
void dump();
|
|
|
|
public:
|
|
void dprintf() { if (DTRACE(Stack)) dump(); }
|
|
#else
|
|
public:
|
|
void dprintf() {}
|
|
#endif
|
|
};
|
|
|
|
inline bool
|
|
StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
|
|
{
|
|
if (!inst->isCall() && !inst->isReturn())
|
|
return false;
|
|
|
|
if (valid())
|
|
clear();
|
|
|
|
trace(tc, !inst->isReturn());
|
|
return true;
|
|
}
|
|
|
|
} // Namespace ArmISA
|
|
|
|
#endif // __ARCH_ARM_STACKTRACE_HH__
|