gem5/src/sim/core.hh
Koan-Sin Tan 7d4f187700 clang: Enable compiling gem5 using clang 2.9 and 3.0
This patch adds the necessary flags to the SConstruct and SConscript
files for compiling using clang 2.9 and later (on Ubuntu et al and OSX
XCode 4.2), and also cleans up a bunch of compiler warnings found by
clang. Most of the warnings are related to hidden virtual functions,
comparisons with unsigneds >= 0, and if-statements with empty
bodies. A number of mismatches between struct and class are also
fixed. clang 2.8 is not working as it has problems with class names
that occur in multiple namespaces (e.g. Statistics in
kernel_stats.hh).

clang has a bug (http://llvm.org/bugs/show_bug.cgi?id=7247) which
causes confusion between the container std::set and the function
Packet::set, and this is currently addressed by not including the
entire namespace std, but rather selecting e.g. "using std::vector" in
the appropriate places.
2012-01-31 12:05:52 -05:00

102 lines
3.2 KiB
C++

/*
* Copyright (c) 2006 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
* Steve Reinhardt
*/
#ifndef __SIM_CORE_HH__
#define __SIM_CORE_HH__
/** @file This header provides some core simulator functionality such as time
* information, output directory and exit events
*/
#include <string>
#include "base/types.hh"
/// The universal simulation clock.
extern Tick _curTick;
inline Tick curTick() { return _curTick; }
inline void curTick(Tick newVal) { _curTick = newVal; }
const Tick retryTime = 1000;
/// These are variables that are set based on the simulator frequency
///@{
namespace SimClock {
extern Tick Frequency; ///< The number of ticks that equal one second
namespace Float {
/** These variables equal the number of ticks in the unit of time they're
* named after in a double.
* @{
*/
extern double s; ///< second
extern double ms; ///< millisecond
extern double us; ///< microsecond
extern double ns; ///< nanosecond
extern double ps; ///< picosecond
/** @} */
/** These variables the inverse of above. They're all < 1.
* @{
*/
extern double Hz; ///< Hz
extern double kHz; ///< kHz
extern double MHz; ///< MHz
extern double GHZ; ///< GHz
/** @}*/
} // namespace Float
/** These variables equal the number of ticks in the unit of time they're
* named after in a 64 bit integer.
*
* @{
*/
namespace Int {
extern Tick s; ///< second
extern Tick ms; ///< millisecond
extern Tick us; ///< microsecond
extern Tick ns; ///< nanosecond
extern Tick ps; ///< picosecond
/** @} */
} // namespace Int
} // namespace SimClock
/** @} */
void setClockFrequency(Tick ticksPerSecond);
void setOutputDir(const std::string &dir);
class Callback;
void registerExitCallback(Callback *callback);
void doExitCleanup();
#endif /* __SIM_CORE_HH__ */