system.hh revision 887
1/* 2 * Copyright (c) 2003 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef __LINUX_SYSTEM_HH__ 30#define __LINUX_SYSTEM_HH__ 31 32#include <vector> 33 34#include "sim/system.hh" 35#include "sim/host.hh" 36#include "targetarch/isa_traits.hh" 37 38#include <map> 39 40/** 41 * MAGIC address where the kernel arguments should go. Defined as 42 * PARAM in linux kernel alpha-asm. 43 */ 44const Addr PARAM_ADDR = ULL(0xfffffc000030a000); 45 46class ExecContext; 47class ElfObject; 48class SymbolTable; 49 50class BreakPCEvent; 51class LinuxSkipDelayLoopEvent; 52class SkipFuncEvent; 53class FnEvent; 54class AlphaArguments; 55 56/** 57 * This class contains linux specific system code (Loading, Events, Binning). 58 * It points to objects that are the system binaries to load and patches them 59 * appropriately to work in simulator. 60 */ 61class LinuxSystem : public System 62{ 63 private: 64 /** Object pointer for the kernel code */ 65 ElfObject *kernel; 66 67 /** Object pointer for the console code */ 68 ElfObject *console; 69 70 /** kernel Symbol table */ 71 SymbolTable *kernelSymtab; 72 73 /** console symbol table */ 74 SymbolTable *consoleSymtab; 75 76 /** Event to halt the simulator if the kernel calls panic() */ 77 BreakPCEvent *kernelPanicEvent; 78 79 /** Event to halt the simulator if the console calls panic() */ 80 BreakPCEvent *consolePanicEvent; 81 82 /** Event to skip determine_cpu_caches() because we don't support the 83 * IPRs that the code can access to figure out cache sizes 84 */ 85 SkipFuncEvent *skipCacheProbeEvent; 86 87 /** PC based event to skip the ide_delay_50ms() call */ 88 SkipFuncEvent *skipIdeDelay50msEvent; 89 90 /** Skip calculate_delay_loop() rather than waiting for this to be 91 * calculated 92 */ 93 LinuxSkipDelayLoopEvent *skipDelayLoopEvent; 94 95 /** Begining of kernel code */ 96 Addr kernelStart; 97 98 /** End of kernel code */ 99 Addr kernelEnd; 100 101 /** Entry point in the kernel to start at */ 102 Addr kernelEntry; 103 104 bool bin; 105 std::vector<string> binned_fns; 106 107 public: 108 std::vector<RemoteGDB *> remoteGDB; 109 std::vector<GDBListener *> gdbListen; 110 111 LinuxSystem(const std::string _name, 112 const uint64_t _init_param, 113 MemoryController *_memCtrl, 114 PhysicalMemory *_physmem, 115 const std::string &kernel_path, 116 const std::string &console_path, 117 const std::string &palcode, 118 const std::string &boot_osflags, 119 const bool _bin, 120 const std::vector<std::string> &_binned_fns); 121 122 ~LinuxSystem(); 123 124 void setDelayLoop(ExecContext *xc); 125 126 int registerExecContext(ExecContext *xc); 127 void replaceExecContext(ExecContext *xc, int xcIndex); 128 129 /** 130 * Returns the addess the kernel starts at. 131 * @return address the kernel starts at 132 */ 133 Addr getKernelStart() const { return kernelStart; } 134 135 /** 136 * Returns the addess the kernel ends at. 137 * @return address the kernel ends at 138 */ 139 Addr getKernelEnd() const { return kernelEnd; } 140 141 /** 142 * Returns the addess the entry point to the kernel code. 143 * @return entry point of the kernel code 144 */ 145 Addr getKernelEntry() const { return kernelEntry; } 146 147 148 bool breakpoint(); 149}; 150 151#endif // __LINUX_SYSTEM_HH__ 152