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/*
* Copyright (c) 2004 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.
*/
#ifndef __LINUX_SYSTEM_HH__
#define __LINUX_SYSTEM_HH__
#include <vector>
#include "sim/system.hh"
#include "sim/host.hh"
#include "targetarch/isa_traits.hh"
#include <map>
/**
* MAGIC address where the kernel arguments should go. Defined as
* PARAM in linux kernel alpha-asm.
*/
const Addr PARAM_ADDR = ULL(0xfffffc000030a000);
class ExecContext;
class ElfObject;
class SymbolTable;
class DebugPrintkEvent;
class BreakPCEvent;
class LinuxSkipDelayLoopEvent;
class SkipFuncEvent;
class FnEvent;
class AlphaArguments;
class PrintThreadInfo;
/**
* This class contains linux specific system code (Loading, Events, Binning).
* It points to objects that are the system binaries to load and patches them
* appropriately to work in simulator.
*/
class LinuxSystem : public System
{
private:
/** Object pointer for the kernel code */
ElfObject *kernel;
/** Object pointer for the console code */
ElfObject *console;
/** kernel Symbol table */
SymbolTable *kernelSymtab;
/** console symbol table */
SymbolTable *consoleSymtab;
/** Event to halt the simulator if the kernel calls panic() */
BreakPCEvent *kernelPanicEvent;
/** Event to halt the simulator if the console calls panic() */
BreakPCEvent *consolePanicEvent;
/** Event to skip determine_cpu_caches() because we don't support the
* IPRs that the code can access to figure out cache sizes
*/
SkipFuncEvent *skipCacheProbeEvent;
/** PC based event to skip the ide_delay_50ms() call */
SkipFuncEvent *skipIdeDelay50msEvent;
/** PC based event to skip the dprink() call and emulate its functionality */
DebugPrintkEvent *debugPrintkEvent;
/** Skip calculate_delay_loop() rather than waiting for this to be
* calculated
*/
LinuxSkipDelayLoopEvent *skipDelayLoopEvent;
PrintThreadInfo *printThreadEvent;
/** Begining of kernel code */
Addr kernelStart;
/** End of kernel code */
Addr kernelEnd;
/** Entry point in the kernel to start at */
Addr kernelEntry;
bool bin;
std::vector<string> binned_fns;
public:
std::vector<RemoteGDB *> remoteGDB;
std::vector<GDBListener *> gdbListen;
LinuxSystem(const std::string _name,
const uint64_t _init_param,
MemoryController *_memCtrl,
PhysicalMemory *_physmem,
const std::string &kernel_path,
const std::string &console_path,
const std::string &palcode,
const std::string &boot_osflags,
const bool _bin,
const std::vector<std::string> &_binned_fns);
~LinuxSystem();
void setDelayLoop(ExecContext *xc);
int registerExecContext(ExecContext *xc);
void replaceExecContext(ExecContext *xc, int xcIndex);
/**
* Returns the addess the kernel starts at.
* @return address the kernel starts at
*/
Addr getKernelStart() const { return kernelStart; }
/**
* Returns the addess the kernel ends at.
* @return address the kernel ends at
*/
Addr getKernelEnd() const { return kernelEnd; }
/**
* Returns the addess the entry point to the kernel code.
* @return entry point of the kernel code
*/
Addr getKernelEntry() const { return kernelEntry; }
bool breakpoint();
};
#endif // __LINUX_SYSTEM_HH__
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