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events.cc
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1/*
2 * Copyright (c) 2011, 2016 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
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11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2004-2006 The Regents of The University of Michigan
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16 *
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18 * modification, are permitted provided that the following conditions are
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26 * this software without specific prior written permission.
27 *
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39 */
40
41#include "kern/linux/events.hh"
42
43#include <sstream>
44
45#include "base/output.hh"
46#include "base/trace.hh"
47#include "cpu/base.hh"
48#include "cpu/thread_context.hh"
49#include "kern/linux/helpers.hh"
50#include "kern/system_events.hh"
51#include "sim/core.hh"
52#include "sim/system.hh"
53
54namespace gem5
55{
56
57namespace linux
58{
59
60void
62{
63 inform("Dumping kernel dmesg buffer to %s...\n", fname);
65 dumpDmesg(tc, *os->stream());
67
68 warn(descr());
69}
70
71void
73{
74 inform("Dumping kernel dmesg buffer to %s...\n", fname);
76 dumpDmesg(tc, *os->stream());
78
79 panic(descr());
80}
81
82void
83onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time)
84{
85 // convert parameter to ns
86 if (div)
87 time /= div;
88
89 time *= mul;
90
91 // Currently, only ARM full-system simulation uses UDelayEvents to skip
92 // __delay and __loop_delay functions. One form involves setting quiesce
93 // time to 0 with the assumption that quiesce will not happen. To avoid
94 // the quiesce handling in this case, only execute the quiesce if time > 0.
95 if (time > 0)
97}
98
99} // namespace linux
100} // namespace gem5
void close(OutputStream *file)
Closes an output file and free the corresponding OutputFile.
Definition output.cc:147
OutputStream * create(const std::string &name, bool binary=false, bool no_gz=false)
Creates a file in this directory (optionally compressed).
Definition output.cc:210
std::string descr() const
Definition pc_event.hh:60
ThreadContext is the external interface to all thread state for anything outside of the CPU.
void quiesceTick(Tick resume)
Quiesce, suspend, and schedule activate at resume.
void process(ThreadContext *tc) override
Definition events.cc:61
std::string fname
Definition events.hh:96
void process(ThreadContext *tc) override
Definition events.cc:72
#define panic(...)
This implements a cprintf based panic() function.
Definition logging.hh:188
#define warn(...)
Definition logging.hh:256
#define inform(...)
Definition logging.hh:257
T div(T rs1, T rs2)
Definition utility.hh:195
Bitfield< 17 > os
Definition misc.hh:810
void onUDelay(ThreadContext *tc, uint64_t div, uint64_t mul, uint64_t time)
Definition events.cc:83
void dumpDmesg(ThreadContext *tc, std::ostream &os)
Dump Linux's dmesg log buffer to the an output stream.
Definition helpers.cc:607
Tick ns
nanosecond
Definition core.cc:68
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Tick curTick()
The universal simulation clock.
Definition cur_tick.hh:46
OutputDirectory simout
Definition output.cc:62

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