262 lines
8.6 KiB
C++
262 lines
8.6 KiB
C++
/*
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* Copyright (c) 2003 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/loader/aout_object.hh"
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#include "base/loader/ecoff_object.hh"
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#include "base/loader/object_file.hh"
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#include "base/loader/symtab.hh"
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#include "base/remote_gdb.hh"
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#include "base/trace.hh"
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#include "cpu/exec_context.hh"
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#include "kern/tru64/tru64_events.hh"
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#include "kern/tru64/tru64_system.hh"
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#include "mem/functional_mem/memory_control.hh"
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#include "mem/functional_mem/physical_memory.hh"
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#include "sim/builder.hh"
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#include "targetarch/isa_traits.hh"
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#include "targetarch/vtophys.hh"
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using namespace std;
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Tru64System::Tru64System(const string _name, const uint64_t _init_param,
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MemoryController *_memCtrl, PhysicalMemory *_physmem,
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const string &kernel_path, const string &console_path,
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const string &palcode, const string &boot_osflags)
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: System(_name, _init_param, _memCtrl, _physmem)
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{
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kernelSymtab = new SymbolTable;
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consoleSymtab = new SymbolTable;
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ObjectFile *kernel = createObjectFile(kernel_path);
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if (kernel == NULL)
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fatal("Could not load kernel file %s", kernel_path);
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ObjectFile *console = createObjectFile(console_path);
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if (console == NULL)
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fatal("Could not load console file %s", console_path);
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if (!kernel->loadGlobalSymbols(kernelSymtab))
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panic("could not load kernel symbols\n");
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if (!console->loadGlobalSymbols(consoleSymtab))
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panic("could not load console symbols\n");
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// Load pal file
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ObjectFile *pal = createObjectFile(palcode);
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if (pal == NULL)
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fatal("Could not load PALcode file %s", palcode);
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pal->loadSections(physmem, true);
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// copy of initial reg file contents
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initRegs = new RegFile;
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memset(initRegs, 0, sizeof(RegFile));
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// Load console file
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console->loadSections(physmem, true);
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// Load kernel file
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kernel->loadSections(physmem, true);
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kernelStart = kernel->textBase();
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kernelEnd = kernel->bssBase() + kernel->bssSize();
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kernelEntry = kernel->entryPoint();
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DPRINTF(Loader, "Kernel start = %#x\n"
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"Kernel end = %#x\n"
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"Kernel entry = %#x\n",
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kernelStart, kernelEnd, kernelEntry);
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// Setup kernel boot parameters
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initRegs->pc = 0x4001;
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initRegs->npc = initRegs->pc + sizeof(MachInst);
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DPRINTF(Loader, "Kernel loaded...\n");
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kernelPanicEvent = new BreakPCEvent(&pcEventQueue, "kernel panic");
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consolePanicEvent = new BreakPCEvent(&pcEventQueue, "console panic");
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badaddrEvent = new BadAddrEvent(&pcEventQueue, "badaddr");
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skipPowerStateEvent = new SkipFuncEvent(&pcEventQueue,
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"tl_v48_capture_power_state");
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skipScavengeBootEvent = new SkipFuncEvent(&pcEventQueue,
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"pmap_scavenge_boot");
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printfEvent = new PrintfEvent(&pcEventQueue, "printf");
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debugPrintfEvent = new DebugPrintfEvent(&pcEventQueue,
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"debug_printf", false);
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debugPrintfrEvent = new DebugPrintfEvent(&pcEventQueue,
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"debug_printfr", true);
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dumpMbufEvent = new DumpMbufEvent(&pcEventQueue, "dump_mbuf");
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Addr addr = 0;
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if (kernelSymtab->findAddress("enable_async_printf", addr)) {
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Addr paddr = vtophys(physmem, addr);
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uint8_t *enable_async_printf =
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physmem->dma_addr(paddr, sizeof(uint32_t));
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if (enable_async_printf)
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*(uint32_t *)enable_async_printf = 0;
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}
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if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
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Addr paddr = vtophys(physmem, addr);
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char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
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if (osflags)
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strcpy(osflags, boot_osflags.c_str());
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}
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if (kernelSymtab->findAddress("panic", addr))
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kernelPanicEvent->schedule(addr);
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else
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panic("could not find kernel symbol \'panic\'");
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if (consoleSymtab->findAddress("panic", addr))
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consolePanicEvent->schedule(addr);
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if (kernelSymtab->findAddress("badaddr", addr))
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badaddrEvent->schedule(addr);
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else
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panic("could not find kernel symbol \'badaddr\'");
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if (kernelSymtab->findAddress("tl_v48_capture_power_state", addr))
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skipPowerStateEvent->schedule(addr);
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if (kernelSymtab->findAddress("pmap_scavenge_boot", addr))
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skipScavengeBootEvent->schedule(addr);
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#if TRACING_ON
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if (kernelSymtab->findAddress("printf", addr))
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printfEvent->schedule(addr);
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if (kernelSymtab->findAddress("m5printf", addr))
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debugPrintfEvent->schedule(addr);
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if (kernelSymtab->findAddress("m5printfr", addr))
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debugPrintfrEvent->schedule(addr);
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if (kernelSymtab->findAddress("m5_dump_mbuf", addr))
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dumpMbufEvent->schedule(addr);
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#endif
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}
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Tru64System::~Tru64System()
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{
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delete initRegs;
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delete kernel;
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delete console;
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delete kernelSymtab;
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delete consoleSymtab;
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delete kernelPanicEvent;
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delete consolePanicEvent;
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delete badaddrEvent;
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delete skipPowerStateEvent;
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delete skipScavengeBootEvent;
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delete printfEvent;
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delete debugPrintfEvent;
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delete debugPrintfrEvent;
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delete dumpMbufEvent;
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}
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int
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Tru64System::registerExecContext(ExecContext *xc)
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{
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int xcIndex = System::registerExecContext(xc);
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if (xcIndex == 0) {
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// xc->regs = *initRegs;
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xc->initStatus(ExecContext::Active);
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}
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else {
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xc->initStatus(ExecContext::Unallocated);
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}
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RemoteGDB *rgdb = new RemoteGDB(this, xc);
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GDBListener *gdbl = new GDBListener(rgdb, 7000 + xcIndex);
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gdbl->listen();
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if (remoteGDB.size() <= xcIndex) {
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remoteGDB.resize(xcIndex+1);
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}
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remoteGDB[xcIndex] = rgdb;
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return xcIndex;
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}
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void
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Tru64System::replaceExecContext(ExecContext *xc, int xcIndex)
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{
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System::replaceExecContext(xcIndex, xc);
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remoteGDB[xcIndex]->replaceExecContext(xc);
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}
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bool
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Tru64System::breakpoint()
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{
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return remoteGDB[0]->trap(ALPHA_KENTRY_IF);
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}
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BEGIN_DECLARE_SIM_OBJECT_PARAMS(Tru64System)
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SimObjectParam<MemoryController *> mem_ctl;
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SimObjectParam<PhysicalMemory *> physmem;
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Param<uint64_t> init_param;
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Param<string> kernel_code;
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Param<string> console_code;
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Param<string> pal_code;
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Param<string> boot_osflags;
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END_DECLARE_SIM_OBJECT_PARAMS(Tru64System)
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BEGIN_INIT_SIM_OBJECT_PARAMS(Tru64System)
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INIT_PARAM(mem_ctl, "memory controller"),
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INIT_PARAM(physmem, "phsyical memory"),
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INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
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INIT_PARAM(kernel_code, "file that contains the kernel code"),
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INIT_PARAM(console_code, "file that contains the console code"),
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INIT_PARAM(pal_code, "file that contains palcode"),
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INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
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"a")
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END_INIT_SIM_OBJECT_PARAMS(Tru64System)
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CREATE_SIM_OBJECT(Tru64System)
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{
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Tru64System *sys = new Tru64System(getInstanceName(), init_param, mem_ctl,
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physmem, kernel_code, console_code,
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pal_code, boot_osflags);
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return sys;
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}
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REGISTER_SIM_OBJECT("Tru64System", Tru64System)
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