gem5/cpu/pc_event.cc
Steve Reinhardt c4793184bd Build options are set via a build_options file in the
build directory instead of being inferred from the name
of the build directory.
Options are passed to C++ via config/*.hh files instead of
via the command line.  Build option flags are now always
defined to 0 or 1, so checks must use '#if' rather than
'#ifdef'.

SConscript:
    MySQL detection moved to SConstruct.
    Add config/*.hh files (via ConfigFile builder).
arch/alpha/alpha_memory.cc:
arch/alpha/ev5.cc:
arch/alpha/ev5.hh:
arch/alpha/isa_traits.hh:
base/fast_alloc.hh:
base/statistics.cc:
base/statistics.hh:
base/stats/events.cc:
base/stats/events.hh:
cpu/base.cc:
cpu/base.hh:
cpu/base_dyn_inst.cc:
cpu/base_dyn_inst.hh:
cpu/exec_context.cc:
cpu/exec_context.hh:
cpu/o3/alpha_cpu.hh:
cpu/o3/alpha_cpu_builder.cc:
cpu/o3/alpha_cpu_impl.hh:
cpu/o3/alpha_dyn_inst.hh:
cpu/o3/alpha_dyn_inst_impl.hh:
cpu/o3/alpha_params.hh:
cpu/o3/commit_impl.hh:
cpu/o3/cpu.cc:
cpu/o3/cpu.hh:
cpu/o3/fetch_impl.hh:
cpu/o3/iew.hh:
cpu/o3/iew_impl.hh:
cpu/o3/regfile.hh:
cpu/o3/rename_impl.hh:
cpu/o3/rob_impl.hh:
cpu/ozone/cpu.hh:
cpu/pc_event.cc:
cpu/simple/cpu.cc:
cpu/simple/cpu.hh:
sim/process.cc:
sim/process.hh:
    Convert compile flags from def/undef to 0/1.
    Set via #include config/*.hh instead of command line.
arch/alpha/isa_desc:
    Convert compile flags from def/undef to 0/1.
    Set via #include config/*.hh instead of command line.
    Revamp fenv.h support... most of the ugliness is hidden
    in base/fenv.hh now.
base/mysql.hh:
    Fix typo in #ifndef guard.
build/SConstruct:
    Build options are set via a build_options file in the
    build directory instead of being inferred from the name
    of the build directory.
    Options are passed to C++ via config/*.hh files instead of
    via the command line.
python/SConscript:
    Generate m5_build_env directly from scons options
    instead of indirectly via CPPDEFINES.
python/m5/convert.py:
    Allow '0' and '1' for booleans.
    Rewrite toBool to use dict.
base/fenv.hh:
    Revamp <fenv.h> support to make it a compile option
    (so we can test w/o it even if it's present) and to
    make isa_desc cleaner.

--HG--
extra : convert_revision : 8f97dc11185bef5e1865b3269c7341df8525c9ad
2005-08-30 13:18:54 -04:00

154 lines
4.3 KiB
C++

/*
* Copyright (c) 2002-2005 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.
*/
#include <algorithm>
#include <map>
#include <string>
#include <utility>
#include "base/trace.hh"
#include "config/full_system.hh"
#include "cpu/base.hh"
#include "cpu/exec_context.hh"
#include "cpu/pc_event.hh"
#include "sim/debug.hh"
#include "sim/root.hh"
using namespace std;
PCEventQueue::PCEventQueue()
{}
PCEventQueue::~PCEventQueue()
{}
bool
PCEventQueue::remove(PCEvent *event)
{
int removed = 0;
range_t range = equal_range(event);
for (iterator i = range.first; i != range.second; ++i) {
if (*i == event) {
DPRINTF(PCEvent, "PC based event removed at %#x: %s\n",
event->pc(), event->descr());
pc_map.erase(i);
++removed;
}
}
return removed > 0;
}
bool
PCEventQueue::schedule(PCEvent *event)
{
pc_map.push_back(event);
sort(pc_map.begin(), pc_map.end(), MapCompare());
DPRINTF(PCEvent, "PC based event scheduled for %#x: %s\n",
event->pc(), event->descr());
return true;
}
bool
PCEventQueue::doService(ExecContext *xc)
{
Addr pc = xc->regs.pc & ~0x3;
int serviced = 0;
range_t range = equal_range(pc);
for (iterator i = range.first; i != range.second; ++i) {
// Make sure that the pc wasn't changed as the side effect of
// another event. This for example, prevents two invocations
// of the SkipFuncEvent. Maybe we should have separate PC
// event queues for each processor?
if (pc != (xc->regs.pc & ~0x3))
continue;
DPRINTF(PCEvent, "PC based event serviced at %#x: %s\n",
(*i)->pc(), (*i)->descr());
(*i)->process(xc);
++serviced;
}
return serviced > 0;
}
void
PCEventQueue::dump() const
{
const_iterator i = pc_map.begin();
const_iterator e = pc_map.end();
for (; i != e; ++i)
cprintf("%d: event at %#x: %s\n", curTick, (*i)->pc(),
(*i)->descr());
}
PCEventQueue::range_t
PCEventQueue::equal_range(Addr pc)
{
return std::equal_range(pc_map.begin(), pc_map.end(), pc, MapCompare());
}
BreakPCEvent::BreakPCEvent(PCEventQueue *q, const std::string &desc, bool del)
: PCEvent(q, desc), remove(del)
{
}
void
BreakPCEvent::process(ExecContext *xc)
{
StringWrap name(xc->cpu->name() + ".break_event");
DPRINTFN("break event %s triggered\n", descr());
debug_break();
if (remove)
delete this;
}
#if FULL_SYSTEM
extern "C"
void
sched_break_pc_sys(System *sys, Addr addr)
{
PCEvent *event = new BreakPCEvent(&sys->pcEventQueue, "debug break", true);
event->schedule(addr);
}
extern "C"
void
sched_break_pc(Addr addr)
{
for (vector<System *>::iterator sysi = System::systemList.begin();
sysi != System::systemList.end(); ++sysi) {
sched_break_pc_sys(*sysi, addr);
}
}
#endif