events.cc

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/*
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 * Copyright (c) 2004-2006 The Regents of The University of Michigan
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#include "kern/linux/events.hh"

#include <sstream>

#include "arch/utility.hh"
#include "base/output.hh"
#include "base/trace.hh"
#include "cpu/base.hh"
#include "cpu/thread_context.hh"
#include "kern/linux/helpers.hh"
#include "kern/system_events.hh"
#include "sim/core.hh"
#include "sim/system.hh"

namespace Linux
{

void
DmesgDump::process(ThreadContext *tc)
{
    inform("Dumping kernel dmesg buffer to %s...\n", fname);
    OutputStream *os = simout.create(fname);
    dumpDmesg(tc, *os->stream());
    simout.close(os);

    warn(descr());
}

void
KernelPanic::process(ThreadContext *tc)
{
    inform("Dumping kernel dmesg buffer to %s...\n", fname);
    OutputStream *os = simout.create(fname);
    dumpDmesg(tc, *os->stream());
    simout.close(os);

    panic(descr());
}

void
onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul)
{
    int arg_num = 0;

    // Get the time in native size
    uint64_t time = TheISA::getArgument(tc, arg_num, (uint16_t)-1, false);

    // convert parameter to ns
    if (div)
        time /= div;

    time *= mul;

    // Currently, only ARM full-system simulation uses UDelayEvents to skip
    // __delay and __loop_delay functions. One form involves setting quiesce
    // time to 0 with the assumption that quiesce will not happen. To avoid
    // the quiesce handling in this case, only execute the quiesce if time > 0.
    if (time > 0)
        tc->quiesceTick(curTick() + SimClock::Int::ns * time);
}

} // namespace linux