diff options
| -rw-r--r-- | SConscript | 2 | ||||
| -rw-r--r-- | arch/alpha/system.cc | 298 | ||||
| -rw-r--r-- | arch/alpha/system.hh | 109 | ||||
| -rw-r--r-- | dev/alpha_console.cc | 6 | ||||
| -rw-r--r-- | dev/alpha_console.hh | 6 | ||||
| -rw-r--r-- | kern/freebsd/freebsd_system.cc | 5 | ||||
| -rw-r--r-- | kern/freebsd/freebsd_system.hh | 2 | ||||
| -rw-r--r-- | kern/kernel_stats.cc | 2 | ||||
| -rw-r--r-- | kern/linux/linux_system.cc | 9 | ||||
| -rw-r--r-- | kern/linux/linux_system.hh | 2 | ||||
| -rw-r--r-- | kern/tru64/tru64_system.cc | 4 | ||||
| -rw-r--r-- | kern/tru64/tru64_system.hh | 5 | ||||
| -rw-r--r-- | sim/pseudo_inst.cc | 2 | ||||
| -rw-r--r-- | sim/system.cc | 262 | ||||
| -rw-r--r-- | sim/system.hh | 55 |
15 files changed, 447 insertions, 322 deletions
diff --git a/SConscript b/SConscript index 540876699..54d02ea4c 100644 --- a/SConscript +++ b/SConscript @@ -212,6 +212,8 @@ mysql_sources = Split(''' # Full-system sources full_system_sources = Split(''' + arch/alpha/system.cc + base/crc.cc base/inet.cc base/remote_gdb.cc diff --git a/arch/alpha/system.cc b/arch/alpha/system.cc new file mode 100644 index 000000000..b841a6d53 --- /dev/null +++ b/arch/alpha/system.cc @@ -0,0 +1,298 @@ +/* + * 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 "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" +#include "targetarch/vtophys.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 §ion) +{ + 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; + + Param<bool> bin; + VectorParam<std::string> binned_fns; + Param<bool> bin_int; + +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), + INIT_PARAM_DFLT(bin, "is this system to be binned", false), + INIT_PARAM(binned_fns, "functions to be broken down and binned"), + INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true) + +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; + p->bin = bin; + p->binned_fns = binned_fns; + p->bin_int = bin_int; + return new AlphaSystem(p); +} + +REGISTER_SIM_OBJECT("AlphaSystem", AlphaSystem) + + diff --git a/arch/alpha/system.hh b/arch/alpha/system.hh new file mode 100644 index 000000000..fe1307ac3 --- /dev/null +++ b/arch/alpha/system.hh @@ -0,0 +1,109 @@ +/* + * 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. + */ + +#ifndef __ARCH_ALPHA_SYSTEM_HH__ +#define __ARCH_ALPHA_SYSTEM_HH__ + +#include <string> +#include <vector> + +#include "sim/system.hh" +#include "base/loader/symtab.hh" +#include "cpu/pc_event.hh" +#include "kern/system_events.hh" +#include "sim/sim_object.hh" + +class AlphaSystem : public System +{ + public: + struct Params : public System::Params + { + std::string console_path; + std::string palcode; + std::string boot_osflags; + uint64_t system_type; + uint64_t system_rev; + }; + + AlphaSystem(Params *p); + + ~AlphaSystem(); + + virtual bool breakpoint(); + +/** + * Serialization stuff + */ + public: + virtual void serialize(std::ostream &os); + virtual void unserialize(Checkpoint *cp, const std::string §ion); + + /** + * Set the m5AlphaAccess pointer in the console + */ + void setAlphaAccess(Addr access); + + /** console symbol table */ + SymbolTable *consoleSymtab; + + /** pal symbol table */ + SymbolTable *palSymtab; + + /** Object pointer for the console code */ + ObjectFile *console; + + /** Object pointer for the PAL code */ + ObjectFile *pal; + +#ifndef NDEBUG + /** Event to halt the simulator if the console calls panic() */ + BreakPCEvent *consolePanicEvent; +#endif + protected: + const Params *params() const { return (const Params *)_params; } + + /** Add a function-based event to PALcode. */ + template <class T> + T *AlphaSystem::addPalFuncEvent(const char *lbl) + { + return addFuncEvent<T>(palSymtab, lbl); + } + + /** Add a function-based event to the console code. */ + template <class T> + T *AlphaSystem::addConsoleFuncEvent(const char *lbl) + { + return addFuncEvent<T>(consoleSymtab, lbl); + } + + virtual Addr fixFuncEventAddr(Addr addr); + +}; + +#endif + diff --git a/dev/alpha_console.cc b/dev/alpha_console.cc index c8327736f..6ca5e3a06 100644 --- a/dev/alpha_console.cc +++ b/dev/alpha_console.cc @@ -34,6 +34,7 @@ #include <cstdio> #include <string> +#include "arch/alpha/system.hh" #include "base/inifile.hh" #include "base/str.hh" #include "base/trace.hh" @@ -50,13 +51,12 @@ #include "mem/functional/physical.hh" #include "sim/builder.hh" #include "sim/sim_object.hh" -#include "sim/system.hh" using namespace std; using namespace AlphaISA; AlphaConsole::AlphaConsole(const string &name, SimConsole *cons, SimpleDisk *d, - System *s, BaseCPU *c, Platform *p, + AlphaSystem *s, BaseCPU *c, Platform *p, MemoryController *mmu, Addr a, HierParams *hier, Bus *pio_bus) : PioDevice(name, p), disk(d), console(cons), system(s), cpu(c), addr(a) @@ -323,7 +323,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(AlphaConsole) SimObjectParam<SimpleDisk *> disk; SimObjectParam<MemoryController *> mmu; Param<Addr> addr; - SimObjectParam<System *> system; + SimObjectParam<AlphaSystem *> system; SimObjectParam<BaseCPU *> cpu; SimObjectParam<Platform *> platform; SimObjectParam<Bus*> pio_bus; diff --git a/dev/alpha_console.hh b/dev/alpha_console.hh index 2d1c1e634..86ef021e9 100644 --- a/dev/alpha_console.hh +++ b/dev/alpha_console.hh @@ -41,7 +41,7 @@ class BaseCPU; class SimConsole; -class System; +class AlphaSystem; class SimpleDisk; /** @@ -90,7 +90,7 @@ class AlphaConsole : public PioDevice SimConsole *console; /** a pointer to the system we are running in */ - System *system; + AlphaSystem *system; /** a pointer to the CPU boot cpu */ BaseCPU *cpu; @@ -101,7 +101,7 @@ class AlphaConsole : public PioDevice public: /** Standard Constructor */ AlphaConsole(const std::string &name, SimConsole *cons, SimpleDisk *d, - System *s, BaseCPU *c, Platform *platform, + AlphaSystem *s, BaseCPU *c, Platform *platform, MemoryController *mmu, Addr addr, HierParams *hier, Bus *pio_bus); diff --git a/kern/freebsd/freebsd_system.cc b/kern/freebsd/freebsd_system.cc index 24d228b5f..7ba385267 100644 --- a/kern/freebsd/freebsd_system.cc +++ b/kern/freebsd/freebsd_system.cc @@ -33,6 +33,7 @@ * */ +#include "arch/alpha/system.hh" #include "base/loader/symtab.hh" #include "cpu/exec_context.hh" #include "kern/freebsd/freebsd_system.hh" @@ -49,7 +50,7 @@ using namespace std; using namespace TheISA; FreebsdSystem::FreebsdSystem(Params *p) - : System(p) + : AlphaSystem(p) { /** * Any time DELAY is called just skip the function. @@ -143,7 +144,7 @@ END_INIT_SIM_OBJECT_PARAMS(FreebsdSystem) CREATE_SIM_OBJECT(FreebsdSystem) { - System::Params *p = new System::Params; + AlphaSystem::Params *p = new AlphaSystem::Params; p->name = getInstanceName(); p->boot_cpu_frequency = boot_cpu_frequency; p->memctrl = memctrl; diff --git a/kern/freebsd/freebsd_system.hh b/kern/freebsd/freebsd_system.hh index ecb842ec6..f87fb03ef 100644 --- a/kern/freebsd/freebsd_system.hh +++ b/kern/freebsd/freebsd_system.hh @@ -31,7 +31,7 @@ #include "kern/system_events.hh" -class FreebsdSystem : public System +class FreebsdSystem : public AlphaSystem { private: class SkipCalibrateClocksEvent : public SkipFuncEvent diff --git a/kern/kernel_stats.cc b/kern/kernel_stats.cc index ff7253c72..33485ca15 100644 --- a/kern/kernel_stats.cc +++ b/kern/kernel_stats.cc @@ -47,7 +47,7 @@ Statistics::Statistics(ExecContext *context) : xc(context), idleProcess((Addr)-1), themode(kernel), lastModeTick(0), iplLast(0), iplLastTick(0) { - bin_int = xc->system->params->bin_int; + bin_int = xc->system->params()->bin_int; } void diff --git a/kern/linux/linux_system.cc b/kern/linux/linux_system.cc index eb189658c..d7ec8a327 100644 --- a/kern/linux/linux_system.cc +++ b/kern/linux/linux_system.cc @@ -35,6 +35,7 @@ * up boot time. */ +#include "arch/alpha/system.hh" #include "base/loader/symtab.hh" #include "cpu/exec_context.hh" #include "cpu/base.hh" @@ -53,7 +54,7 @@ using namespace std; using namespace TheISA; LinuxSystem::LinuxSystem(Params *p) - : System(p) + : AlphaSystem(p) { Addr addr = 0; Addr paddr = 0; @@ -73,7 +74,7 @@ LinuxSystem::LinuxSystem(Params *p) paddr = vtophys(physmem, CommandLine()); char *commandline = (char *)physmem->dma_addr(paddr, sizeof(uint64_t)); if (commandline) - strncpy(commandline, params->boot_osflags.c_str(), CommandLineSize); + strncpy(commandline, params()->boot_osflags.c_str(), CommandLineSize); /** * find the address of the est_cycle_freq variable and insert it @@ -146,7 +147,7 @@ LinuxSystem::LinuxSystem(Params *p) printThreadEvent = NULL; } - if (params->bin_int) { + if (params()->bin_int) { intStartEvent = addPalFuncEvent<InterruptStartEvent>("sys_int_21"); if (!intStartEvent) panic("could not find symbol: sys_int_21\n"); @@ -277,7 +278,7 @@ END_INIT_SIM_OBJECT_PARAMS(LinuxSystem) CREATE_SIM_OBJECT(LinuxSystem) { - System::Params *p = new System::Params; + AlphaSystem::Params *p = new AlphaSystem::Params; p->name = getInstanceName(); p->boot_cpu_frequency = boot_cpu_frequency; p->memctrl = memctrl; diff --git a/kern/linux/linux_system.hh b/kern/linux/linux_system.hh index f883bef93..9fecb7290 100644 --- a/kern/linux/linux_system.hh +++ b/kern/linux/linux_system.hh @@ -40,7 +40,7 @@ class PrintThreadInfo; * It points to objects that are the system binaries to load and patches them * appropriately to work in simulator. */ -class LinuxSystem : public System +class LinuxSystem : public AlphaSystem { private: class SkipDelayLoopEvent : public SkipFuncEvent diff --git a/kern/tru64/tru64_system.cc b/kern/tru64/tru64_system.cc index 48e02d90b..aa78e8de6 100644 --- a/kern/tru64/tru64_system.cc +++ b/kern/tru64/tru64_system.cc @@ -42,7 +42,7 @@ using namespace std; Tru64System::Tru64System(Tru64System::Params *p) - : System(p) + : AlphaSystem(p) { Addr addr = 0; if (kernelSymtab->findAddress("enable_async_printf", addr)) { @@ -136,7 +136,7 @@ END_INIT_SIM_OBJECT_PARAMS(Tru64System) CREATE_SIM_OBJECT(Tru64System) { - System::Params *p = new System::Params; + AlphaSystem::Params *p = new AlphaSystem::Params; p->name = getInstanceName(); p->boot_cpu_frequency = boot_cpu_frequency; p->memctrl = memctrl; diff --git a/kern/tru64/tru64_system.hh b/kern/tru64/tru64_system.hh index d4eb5a59a..38e6d9dd7 100644 --- a/kern/tru64/tru64_system.hh +++ b/kern/tru64/tru64_system.hh @@ -29,8 +29,9 @@ #ifndef __KERN_TRU64_TRU64_SYSTEM_HH__ #define __KERN_TRU64_TRU64_SYSTEM_HH__ -#include "sim/system.hh" +#include "arch/alpha/system.hh" #include "arch/isa_traits.hh" +#include "sim/system.hh" class ExecContext; @@ -42,7 +43,7 @@ class DebugPrintfEvent; class DumpMbufEvent; class AlphaArguments; -class Tru64System : public System +class Tru64System : public AlphaSystem { private: #ifdef DEBUG diff --git a/sim/pseudo_inst.cc b/sim/pseudo_inst.cc index 3effef7ae..f4285be8a 100644 --- a/sim/pseudo_inst.cc +++ b/sim/pseudo_inst.cc @@ -207,7 +207,7 @@ namespace AlphaPseudo uint64_t readfile(ExecContext *xc, Addr vaddr, uint64_t len, uint64_t offset) { - const string &file = xc->cpu->system->params->readfile; + const string &file = xc->cpu->system->params()->readfile; if (file.empty()) { return ULL(0); } diff --git a/sim/system.cc b/sim/system.cc index 378568a8a..8820922c1 100644 --- a/sim/system.cc +++ b/sim/system.cc @@ -1,31 +1,3 @@ -/* - * 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 "base/loader/object_file.hh" #include "base/loader/symtab.hh" #include "base/remote_gdb.hh" @@ -49,38 +21,23 @@ int System::numSystemsRunning = 0; System::System(Params *p) : SimObject(p->name), memctrl(p->memctrl), physmem(p->physmem), - init_param(p->init_param), numcpus(0), params(p) + init_param(p->init_param), numcpus(0), _params(p) { // add self to global system list systemList.push_back(this); kernelSymtab = new SymbolTable; - consoleSymtab = new SymbolTable; - palSymtab = new SymbolTable; debugSymbolTable = new SymbolTable; /** - * Load the kernel, pal, and console code into memory + * Load the kernel code into memory */ // Load kernel code - kernel = createObjectFile(params->kernel_path); + kernel = createObjectFile(params()->kernel_path); if (kernel == NULL) - fatal("Could not load kernel file %s", params->kernel_path); - - // 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); - + fatal("Could not load kernel file %s", params()->kernel_path); // Load program sections into memory - pal->loadSections(physmem, true); - console->loadSections(physmem, true); kernel->loadSections(physmem, true); // setup entry points @@ -95,71 +52,17 @@ System::System(Params *p) if (!kernel->loadLocalSymbols(kernelSymtab)) panic("could not load kernel local symbols\n"); - 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 (!kernel->loadGlobalSymbols(debugSymbolTable)) panic("could not load kernel symbols\n"); if (!kernel->loadLocalSymbols(debugSymbolTable)) panic("could not load kernel local 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"); - - DPRINTF(Loader, "Kernel start = %#x\n", kernelStart); DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd); DPRINTF(Loader, "Kernel entry = %#x\n", kernelEntry); DPRINTF(Loader, "Kernel loaded...\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"); - // increment the number of running systms numSystemsRunning++; @@ -169,100 +72,13 @@ System::System(Params *p) System::~System() { delete kernelSymtab; - delete consoleSymtab; delete kernel; - delete console; - delete pal; delete kernelBinning; - -#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 -System::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 -System::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 -System::breakpoint() -{ - return remoteGDB[0]->trap(ALPHA_KENTRY_INT); -} int rgdb_wait = -1; @@ -336,8 +152,6 @@ System::serialize(ostream &os) kernelBinning->serialize(os); kernelSymtab->serialize("kernel_symtab", os); - consoleSymtab->serialize("console_symtab", os); - palSymtab->serialize("pal_symtab", os); } @@ -347,8 +161,6 @@ System::unserialize(Checkpoint *cp, const string §ion) kernelBinning->unserialize(cp, section); kernelSymtab->unserialize("kernel_symtab", cp, section); - consoleSymtab->unserialize("console_symtab", cp, section); - palSymtab->unserialize("pal_symtab", cp, section); } void @@ -369,69 +181,5 @@ printSystems() System::printSystems(); } -BEGIN_DECLARE_SIM_OBJECT_PARAMS(System) - - Param<Tick> boot_cpu_frequency; - SimObjectParam<MemoryController *> memctrl; - SimObjectParam<PhysicalMemory *> physmem; - - Param<string> kernel; - Param<string> console; - Param<string> pal; - - Param<string> boot_osflags; - Param<string> readfile; - Param<unsigned int> init_param; - - Param<uint64_t> system_type; - Param<uint64_t> system_rev; - - Param<bool> bin; - VectorParam<string> binned_fns; - Param<bool> bin_int; - -END_DECLARE_SIM_OBJECT_PARAMS(System) - -BEGIN_INIT_SIM_OBJECT_PARAMS(System) - - 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), - INIT_PARAM_DFLT(bin, "is this system to be binned", false), - INIT_PARAM(binned_fns, "functions to be broken down and binned"), - INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true) - -END_INIT_SIM_OBJECT_PARAMS(System) - -CREATE_SIM_OBJECT(System) -{ - System::Params *p = new System::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; - p->bin = bin; - p->binned_fns = binned_fns; - p->bin_int = bin_int; - return new System(p); -} - -REGISTER_SIM_OBJECT("System", System) +DEFINE_SIM_OBJECT_CLASS_NAME("System", System) diff --git a/sim/system.hh b/sim/system.hh index aa697c040..ea482a102 100644 --- a/sim/system.hh +++ b/sim/system.hh @@ -71,21 +71,9 @@ class System : public SimObject /** kernel symbol table */ SymbolTable *kernelSymtab; - /** console symbol table */ - SymbolTable *consoleSymtab; - - /** pal symbol table */ - SymbolTable *palSymtab; - /** Object pointer for the kernel code */ ObjectFile *kernel; - /** Object pointer for the console code */ - ObjectFile *console; - - /** Object pointer for the PAL code */ - ObjectFile *pal; - /** Begining of kernel code */ Addr kernelStart; @@ -97,11 +85,6 @@ class System : public SimObject Kernel::Binning *kernelBinning; -#ifndef NDEBUG - /** Event to halt the simulator if the console calls panic() */ - BreakPCEvent *consolePanicEvent; -#endif - protected: /** @@ -109,7 +92,7 @@ class System : public SimObject * events on to target function executions. See comment in * system.cc for details. */ - Addr fixFuncEventAddr(Addr addr); + virtual Addr fixFuncEventAddr(Addr addr) = 0; /** * Add a function-based event to the given function, to be looked @@ -135,24 +118,10 @@ class System : public SimObject return addFuncEvent<T>(kernelSymtab, lbl); } - /** Add a function-based event to PALcode. */ - template <class T> - T *System::addPalFuncEvent(const char *lbl) - { - return addFuncEvent<T>(palSymtab, lbl); - } - - /** Add a function-based event to the console code. */ - template <class T> - T *System::addConsoleFuncEvent(const char *lbl) - { - return addFuncEvent<T>(consoleSymtab, lbl); - } - public: std::vector<RemoteGDB *> remoteGDB; std::vector<GDBListener *> gdbListen; - bool breakpoint(); + virtual bool breakpoint() = 0; public: struct Params @@ -167,27 +136,21 @@ class System : public SimObject bool bin_int; std::string kernel_path; - std::string console_path; - std::string palcode; - std::string boot_osflags; - std::string readfile; - uint64_t system_type; - uint64_t system_rev; }; - Params *params; + protected: + Params *_params; + + public: System(Params *p); ~System(); void startup(); - public: - /** - * Set the m5AlphaAccess pointer in the console - */ - void setAlphaAccess(Addr access); + const Params *params() const { return (const Params *)_params; } + public: /** * Returns the addess the kernel starts at. * @return address the kernel starts at @@ -224,6 +187,8 @@ class System : public SimObject static int numSystemsRunning; static void printSystems(); + + }; #endif // __SYSTEM_HH__ |