1/* 2 * Copyright (c) 2001-2005 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; --- 31 unchanged lines hidden (view full) --- 40#include "base/loader/symtab.hh" 41#include "base/intmath.hh" 42#include "base/statistics.hh" 43#include "config/full_system.hh" 44#include "config/the_isa.hh" 45#include "cpu/thread_context.hh" 46#include "mem/page_table.hh" 47#include "mem/physical.hh" |
48#include "mem/translating_port.hh" |
49#include "params/LiveProcess.hh" 50#include "params/Process.hh" 51#include "sim/debug.hh" 52#include "sim/process.hh" 53#include "sim/process_impl.hh" 54#include "sim/stats.hh" 55#include "sim/syscall_emul.hh" 56#include "sim/system.hh" --- 15 unchanged lines hidden (view full) --- 72#else 73#error "THE_ISA not set" 74#endif 75 76 77using namespace std; 78using namespace TheISA; 79 |
80// current number of allocated processes 81int num_processes = 0; 82 83template<class IntType> 84AuxVector<IntType>::AuxVector(IntType type, IntType val) 85{ 86 a_type = TheISA::htog(type); 87 a_val = TheISA::htog(val); 88} 89 |
90template class AuxVector<uint32_t>; 91template class AuxVector<uint64_t>; |
92 93Process::Process(ProcessParams * params) 94 : SimObject(params), system(params->system), 95 max_stack_size(params->max_stack_size) 96{ 97 string in = params->input; 98 string out = params->output; 99 string err = params->errout; --- 55 unchanged lines hidden (view full) --- 155 // mark remaining fds as free 156 for (int i = 3; i <= MAX_FD; ++i) { 157 Process::FdMap *fdo = &fd_map[i]; 158 fdo->fd = -1; 159 } 160 161 mmap_start = mmap_end = 0; 162 nxm_start = nxm_end = 0; |
163 pTable = new PageTable(this); |
164 // other parameters will be initialized when the program is loaded 165} 166 167 168void 169Process::regStats() 170{ 171 using namespace Stats; --- 58 unchanged lines hidden (view full) --- 230 fatal("Process %s is not associated with any HW contexts!\n", name()); 231 232 // first thread context for this process... initialize & enable 233 ThreadContext *tc = system->getThreadContext(contextIds[0]); 234 235 // mark this context as active so it will start ticking. 236 tc->activate(0); 237 |
238 Port *mem_port; 239 mem_port = system->physmem->getPort("functional"); 240 initVirtMem = new TranslatingPort("process init port", this, 241 TranslatingPort::Always); 242 mem_port->setPeer(initVirtMem); 243 initVirtMem->setPeer(mem_port); |
244} 245 246// map simulator fd sim_fd to target fd tgt_fd 247void 248Process::dup_fd(int sim_fd, int tgt_fd) 249{ 250 if (tgt_fd < 0 || tgt_fd > MAX_FD) 251 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); --- 62 unchanged lines hidden (view full) --- 314Process::sim_fd_obj(int tgt_fd) 315{ 316 if (tgt_fd < 0 || tgt_fd > MAX_FD) 317 return NULL; 318 319 return &fd_map[tgt_fd]; 320} 321 |
322bool 323Process::fixupStackFault(Addr vaddr) 324{ 325 // Check if this is already on the stack and there's just no page there 326 // yet. 327 if (vaddr >= stack_min && vaddr < stack_base) { |
328 pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize); |
329 return true; 330 } 331 332 // We've accessed the next page of the stack, so extend it to include 333 // this address. 334 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 335 while (vaddr < stack_min) { 336 stack_min -= TheISA::PageBytes; 337 if (stack_base - stack_min > max_stack_size) 338 fatal("Maximum stack size exceeded\n"); 339 if (stack_base - stack_min > 8 * 1024 * 1024) 340 fatal("Over max stack size for one thread\n"); |
341 pTable->allocate(stack_min, TheISA::PageBytes); |
342 inform("Increasing stack size by one page."); 343 }; 344 return true; 345 } |
346 warn("Not extending stack: address %#x isn't at the end of the stack.", 347 vaddr); |
348 return false; 349} 350 351// find all offsets for currently open files and save them 352void 353Process::fix_file_offsets() 354{ 355 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; --- 209 unchanged lines hidden (view full) --- 565 debugSymbolTable = NULL; 566 } 567 } 568} 569 570void 571LiveProcess::syscall(int64_t callnum, ThreadContext *tc) 572{ |
573#if !FULL_SYSTEM |
574 num_syscalls++; 575 576 SyscallDesc *desc = getDesc(callnum); 577 if (desc == NULL) 578 fatal("Syscall %d out of range", callnum); 579 580 desc->doSyscall(callnum, this, tc); |
581#endif |
582} 583 584IntReg 585LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) 586{ 587 return getSyscallArg(tc, i); 588} 589 --- 9 unchanged lines hidden (view full) --- 599 fatal("Can't load object file %s", executable); 600 } 601 602 if (objFile->isDynamic()) 603 fatal("Object file is a dynamic executable however only static " 604 "executables are supported!\n Please recompile your " 605 "executable as a static binary and try again.\n"); 606 |
607#if !FULL_SYSTEM |
608#if THE_ISA == ALPHA_ISA 609 if (objFile->getArch() != ObjectFile::Alpha) 610 fatal("Object file architecture does not match compiled ISA (Alpha)."); 611 612 switch (objFile->getOpSys()) { 613 case ObjectFile::Tru64: 614 process = new AlphaTru64Process(params, objFile); 615 break; --- 94 unchanged lines hidden (view full) --- 710 break; 711 712 default: 713 fatal("Unknown/unsupported operating system."); 714 } 715#else 716#error "THE_ISA not set" 717#endif |
718#endif |
719 |
720 if (process == NULL) 721 fatal("Unknown error creating process object."); 722 return process; 723} 724 725LiveProcess * 726LiveProcessParams::create() 727{ 728 return LiveProcess::create(this); 729} |