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diff --git a/arch/alpha/system.cc b/arch/alpha/system.cc
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-/*
- * Copyright (c) 2002-2005 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.
- */
-
-#include "arch/alpha/system.hh"
-#include "arch/vtophys.hh"
-#include "base/remote_gdb.hh"
-#include "base/loader/object_file.hh"
-#include "base/loader/symtab.hh"
-#include "base/trace.hh"
-#include "mem/functional/memory_control.hh"
-#include "mem/functional/physical.hh"
-#include "sim/byteswap.hh"
-#include "sim/builder.hh"
-
-
-using namespace LittleEndianGuest;
-
-AlphaSystem::AlphaSystem(Params *p)
- : System(p)
-{
- consoleSymtab = new SymbolTable;
- palSymtab = new SymbolTable;
-
-
- /**
- * Load the pal, and console code into memory
- */
- // Load Console Code
- console = createObjectFile(params()->console_path);
- if (console == NULL)
- fatal("Could not load console file %s", params()->console_path);
-
- // Load pal file
- pal = createObjectFile(params()->palcode);
- if (pal == NULL)
- fatal("Could not load PALcode file %s", params()->palcode);
-
-
- // Load program sections into memory
- pal->loadSections(physmem, true);
- console->loadSections(physmem, true);
-
- // load symbols
- if (!console->loadGlobalSymbols(consoleSymtab))
- panic("could not load console symbols\n");
-
- if (!pal->loadGlobalSymbols(palSymtab))
- panic("could not load pal symbols\n");
-
- if (!pal->loadLocalSymbols(palSymtab))
- panic("could not load pal symbols\n");
-
- if (!console->loadGlobalSymbols(debugSymbolTable))
- panic("could not load console symbols\n");
-
- if (!pal->loadGlobalSymbols(debugSymbolTable))
- panic("could not load pal symbols\n");
-
- if (!pal->loadLocalSymbols(debugSymbolTable))
- panic("could not load pal symbols\n");
-
- Addr addr = 0;
-#ifndef NDEBUG
- consolePanicEvent = addConsoleFuncEvent<BreakPCEvent>("panic");
-#endif
-
- /**
- * Copy the osflags (kernel arguments) into the consoles
- * memory. (Presently Linux does not use the console service
- * routine to get these command line arguments, but Tru64 and
- * others do.)
- */
- if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
- Addr paddr = vtophys(physmem, addr);
- char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
-
- if (osflags)
- strcpy(osflags, params()->boot_osflags.c_str());
- }
-
- /**
- * Set the hardware reset parameter block system type and revision
- * information to Tsunami.
- */
- if (consoleSymtab->findAddress("m5_rpb", addr)) {
- Addr paddr = vtophys(physmem, addr);
- char *hwrpb = (char *)physmem->dma_addr(paddr, sizeof(uint64_t));
-
- if (!hwrpb)
- panic("could not translate hwrpb addr\n");
-
- *(uint64_t*)(hwrpb+0x50) = htog(params()->system_type);
- *(uint64_t*)(hwrpb+0x58) = htog(params()->system_rev);
- } else
- panic("could not find hwrpb\n");
-
-}
-
-AlphaSystem::~AlphaSystem()
-{
- delete consoleSymtab;
- delete console;
- delete pal;
-#ifdef DEBUG
- delete consolePanicEvent;
-#endif
-}
-
-/**
- * This function fixes up addresses that are used to match PCs for
- * hooking simulator events on to target function executions.
- *
- * Alpha binaries may have multiple global offset table (GOT)
- * sections. A function that uses the GOT starts with a
- * two-instruction prolog which sets the global pointer (gp == r29) to
- * the appropriate GOT section. The proper gp value is calculated
- * based on the function address, which must be passed by the caller
- * in the procedure value register (pv aka t12 == r27). This sequence
- * looks like the following:
- *
- * opcode Ra Rb offset
- * ldah gp,X(pv) 09 29 27 X
- * lda gp,Y(gp) 08 29 29 Y
- *
- * for some constant offsets X and Y. The catch is that the linker
- * (or maybe even the compiler, I'm not sure) may recognize that the
- * caller and callee are using the same GOT section, making this
- * prolog redundant, and modify the call target to skip these
- * instructions. If we check for execution of the first instruction
- * of a function (the one the symbol points to) to detect when to skip
- * it, we'll miss all these modified calls. It might work to
- * unconditionally check for the third instruction, but not all
- * functions have this prolog, and there's some chance that those
- * first two instructions could have undesired consequences. So we do
- * the Right Thing and pattern-match the first two instructions of the
- * function to decide where to patch.
- *
- * Eventually this code should be moved into an ISA-specific file.
- */
-Addr
-AlphaSystem::fixFuncEventAddr(Addr addr)
-{
- // mask for just the opcode, Ra, and Rb fields (not the offset)
- const uint32_t inst_mask = 0xffff0000;
- // ldah gp,X(pv): opcode 9, Ra = 29, Rb = 27
- const uint32_t gp_ldah_pattern = (9 << 26) | (29 << 21) | (27 << 16);
- // lda gp,Y(gp): opcode 8, Ra = 29, rb = 29
- const uint32_t gp_lda_pattern = (8 << 26) | (29 << 21) | (29 << 16);
- // instruction size
- const int sz = sizeof(uint32_t);
-
- Addr paddr = vtophys(physmem, addr);
- uint32_t i1 = *(uint32_t *)physmem->dma_addr(paddr, sz);
- uint32_t i2 = *(uint32_t *)physmem->dma_addr(paddr+sz, sz);
-
- if ((i1 & inst_mask) == gp_ldah_pattern &&
- (i2 & inst_mask) == gp_lda_pattern) {
- Addr new_addr = addr + 2*sz;
- DPRINTF(Loader, "fixFuncEventAddr: %p -> %p", addr, new_addr);
- return new_addr;
- } else {
- return addr;
- }
-}
-
-
-void
-AlphaSystem::setAlphaAccess(Addr access)
-{
- Addr addr = 0;
- if (consoleSymtab->findAddress("m5AlphaAccess", addr)) {
- Addr paddr = vtophys(physmem, addr);
- uint64_t *m5AlphaAccess =
- (uint64_t *)physmem->dma_addr(paddr, sizeof(uint64_t));
-
- if (!m5AlphaAccess)
- panic("could not translate m5AlphaAccess addr\n");
-
- *m5AlphaAccess = htog(EV5::Phys2K0Seg(access));
- } else
- panic("could not find m5AlphaAccess\n");
-}
-
-bool
-AlphaSystem::breakpoint()
-{
- return remoteGDB[0]->trap(ALPHA_KENTRY_INT);
-}
-
-void
-AlphaSystem::serialize(std::ostream &os)
-{
- System::serialize(os);
- consoleSymtab->serialize("console_symtab", os);
- palSymtab->serialize("pal_symtab", os);
-}
-
-
-void
-AlphaSystem::unserialize(Checkpoint *cp, const std::string &section)
-{
- System::unserialize(cp,section);
- consoleSymtab->unserialize("console_symtab", cp, section);
- palSymtab->unserialize("pal_symtab", cp, section);
-}
-
-
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(AlphaSystem)
-
- Param<Tick> boot_cpu_frequency;
- SimObjectParam<MemoryController *> memctrl;
- SimObjectParam<PhysicalMemory *> physmem;
-
- Param<std::string> kernel;
- Param<std::string> console;
- Param<std::string> pal;
-
- Param<std::string> boot_osflags;
- Param<std::string> readfile;
- Param<unsigned int> init_param;
-
- Param<uint64_t> system_type;
- Param<uint64_t> system_rev;
-
-END_DECLARE_SIM_OBJECT_PARAMS(AlphaSystem)
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(AlphaSystem)
-
- INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"),
- INIT_PARAM(memctrl, "memory controller"),
- INIT_PARAM(physmem, "phsyical memory"),
- INIT_PARAM(kernel, "file that contains the kernel code"),
- INIT_PARAM(console, "file that contains the console code"),
- INIT_PARAM(pal, "file that contains palcode"),
- INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
- "a"),
- INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
- INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
- INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
- INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10)
-
-END_INIT_SIM_OBJECT_PARAMS(AlphaSystem)
-
-CREATE_SIM_OBJECT(AlphaSystem)
-{
- AlphaSystem::Params *p = new AlphaSystem::Params;
- p->name = getInstanceName();
- p->boot_cpu_frequency = boot_cpu_frequency;
- p->memctrl = memctrl;
- p->physmem = physmem;
- p->kernel_path = kernel;
- p->console_path = console;
- p->palcode = pal;
- p->boot_osflags = boot_osflags;
- p->init_param = init_param;
- p->readfile = readfile;
- p->system_type = system_type;
- p->system_rev = system_rev;
- return new AlphaSystem(p);
-}
-
-REGISTER_SIM_OBJECT("AlphaSystem", AlphaSystem)
-
-
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