process.cc (8534:09745e0c3dd9) process.cc (8539:7d3ea3c65c66)
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;

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324{
325 if (tgt_fd < 0 || tgt_fd > MAX_FD)
326 return NULL;
327
328 return &fd_map[tgt_fd];
329}
330
331bool
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;

--- 315 unchanged lines hidden (view full) ---

324{
325 if (tgt_fd < 0 || tgt_fd > MAX_FD)
326 return NULL;
327
328 return &fd_map[tgt_fd];
329}
330
331bool
332Process::checkAndAllocNextPage(Addr vaddr)
332Process::fixupStackFault(Addr vaddr)
333{
333{
334 // if this is an initial write we might not have
334 // Check if this is already on the stack and there's just no page there
335 // yet.
335 if (vaddr >= stack_min && vaddr < stack_base) {
336 pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize);
337 return true;
338 }
339
336 if (vaddr >= stack_min && vaddr < stack_base) {
337 pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize);
338 return true;
339 }
340
340 // We've accessed the next page of the stack, so extend the stack
341 // to cover it.
341 // We've accessed the next page of the stack, so extend it to include
342 // this address.
342 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
343 while (vaddr < stack_min) {
344 stack_min -= TheISA::PageBytes;
343 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
344 while (vaddr < stack_min) {
345 stack_min -= TheISA::PageBytes;
345 if(stack_base - stack_min > max_stack_size)
346 if (stack_base - stack_min > max_stack_size)
346 fatal("Maximum stack size exceeded\n");
347 fatal("Maximum stack size exceeded\n");
347 if(stack_base - stack_min > 8*1024*1024)
348 if (stack_base - stack_min > 8 * 1024 * 1024)
348 fatal("Over max stack size for one thread\n");
349 pTable->allocate(stack_min, TheISA::PageBytes);
350 inform("Increasing stack size by one page.");
351 };
352 return true;
353 }
349 fatal("Over max stack size for one thread\n");
350 pTable->allocate(stack_min, TheISA::PageBytes);
351 inform("Increasing stack size by one page.");
352 };
353 return true;
354 }
354 warn("Not increasing stack: requested vaddr is outside of stack range.");
355 warn("Not extending stack: address %#x isn't at the end of the stack.",
356 vaddr);
355 return false;
356}
357
358// find all offsets for currently open files and save them
359void
360Process::fix_file_offsets()
361{
362 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];

--- 371 unchanged lines hidden --- 		357 return false;
358}
359
360// find all offsets for currently open files and save them
361void
362Process::fix_file_offsets()
363{
364 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];

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