process.cc (7487:2a5e4070155e) process.cc (7488:cf7c4345ea82)
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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491 UNSERIALIZE_SCALAR(flags);
492 UNSERIALIZE_SCALAR(readPipeSource);
493 UNSERIALIZE_SCALAR(fileOffset);
494}
495
496void
497Process::serialize(std::ostream &os)
498{
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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491 UNSERIALIZE_SCALAR(flags);
492 UNSERIALIZE_SCALAR(readPipeSource);
493 UNSERIALIZE_SCALAR(fileOffset);
494}
495
496void
497Process::serialize(std::ostream &os)
498{
499 SERIALIZE_SCALAR(initialContextLoaded);
500 SERIALIZE_SCALAR(brk_point);
501 SERIALIZE_SCALAR(stack_base);
502 SERIALIZE_SCALAR(stack_size);
503 SERIALIZE_SCALAR(stack_min);
504 SERIALIZE_SCALAR(next_thread_stack_base);
505 SERIALIZE_SCALAR(mmap_start);
506 SERIALIZE_SCALAR(mmap_end);
507 SERIALIZE_SCALAR(nxm_start);

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514 }
515 SERIALIZE_SCALAR(M5_pid);
516
517}
518
519void
520Process::unserialize(Checkpoint *cp, const std::string &section)
521{
499 SERIALIZE_SCALAR(brk_point);
500 SERIALIZE_SCALAR(stack_base);
501 SERIALIZE_SCALAR(stack_size);
502 SERIALIZE_SCALAR(stack_min);
503 SERIALIZE_SCALAR(next_thread_stack_base);
504 SERIALIZE_SCALAR(mmap_start);
505 SERIALIZE_SCALAR(mmap_end);
506 SERIALIZE_SCALAR(nxm_start);

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513 }
514 SERIALIZE_SCALAR(M5_pid);
515
516}
517
518void
519Process::unserialize(Checkpoint *cp, const std::string &section)
520{
522 UNSERIALIZE_SCALAR(initialContextLoaded);
523 UNSERIALIZE_SCALAR(brk_point);
524 UNSERIALIZE_SCALAR(stack_base);
525 UNSERIALIZE_SCALAR(stack_size);
526 UNSERIALIZE_SCALAR(stack_min);
527 UNSERIALIZE_SCALAR(next_thread_stack_base);
528 UNSERIALIZE_SCALAR(mmap_start);
529 UNSERIALIZE_SCALAR(mmap_end);
530 UNSERIALIZE_SCALAR(nxm_start);

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574 // didn't load any symbols
575 delete debugSymbolTable;
576 debugSymbolTable = NULL;
577 }
578 }
579}
580
581void
521 UNSERIALIZE_SCALAR(brk_point);
522 UNSERIALIZE_SCALAR(stack_base);
523 UNSERIALIZE_SCALAR(stack_size);
524 UNSERIALIZE_SCALAR(stack_min);
525 UNSERIALIZE_SCALAR(next_thread_stack_base);
526 UNSERIALIZE_SCALAR(mmap_start);
527 UNSERIALIZE_SCALAR(mmap_end);
528 UNSERIALIZE_SCALAR(nxm_start);

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572 // didn't load any symbols
573 delete debugSymbolTable;
574 debugSymbolTable = NULL;
575 }
576 }
577}
578
579void
582LiveProcess::argsInit(int intSize, int pageSize)
583{
584 Process::startup();
585
586 // load object file into target memory
587 objFile->loadSections(initVirtMem);
588
589 // Calculate how much space we need for arg & env arrays.
590 int argv_array_size = intSize * (argv.size() + 1);
591 int envp_array_size = intSize * (envp.size() + 1);
592 int arg_data_size = 0;
593 for (vector<string>::size_type i = 0; i < argv.size(); ++i) {
594 arg_data_size += argv[i].size() + 1;
595 }
596 int env_data_size = 0;
597 for (vector<string>::size_type i = 0; i < envp.size(); ++i) {
598 env_data_size += envp[i].size() + 1;
599 }
600
601 int space_needed =
602 argv_array_size + envp_array_size + arg_data_size + env_data_size;
603 if (space_needed < 32*1024)
604 space_needed = 32*1024;
605
606 // set bottom of stack
607 stack_min = stack_base - space_needed;
608 // align it
609 stack_min = roundDown(stack_min, pageSize);
610 stack_size = stack_base - stack_min;
611 // map memory
612 pTable->allocate(stack_min, roundUp(stack_size, pageSize));
613
614 // map out initial stack contents
615 Addr argv_array_base = stack_min + intSize; // room for argc
616 Addr envp_array_base = argv_array_base + argv_array_size;
617 Addr arg_data_base = envp_array_base + envp_array_size;
618 Addr env_data_base = arg_data_base + arg_data_size;
619
620 // write contents to stack
621 uint64_t argc = argv.size();
622 if (intSize == 8)
623 argc = htog((uint64_t)argc);
624 else if (intSize == 4)
625 argc = htog((uint32_t)argc);
626 else
627 panic("Unknown int size");
628
629 initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize);
630
631 copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
632 copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
633
634 ThreadContext *tc = system->getThreadContext(contextIds[0]);
635
636 setSyscallArg(tc, 0, argc);
637 setSyscallArg(tc, 1, argv_array_base);
638 tc->setIntReg(StackPointerReg, stack_min);
639
640 Addr prog_entry = objFile->entryPoint();
641 tc->setPC(prog_entry);
642 tc->setNextPC(prog_entry + sizeof(MachInst));
643
644#if THE_ISA != ALPHA_ISA && THE_ISA != POWER_ISA //e.g. MIPS or Sparc
645 tc->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
646#endif
647
648 num_processes++;
649}
650
651void
652LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
653{
654 num_syscalls++;
655
656 SyscallDesc *desc = getDesc(callnum);
657 if (desc == NULL)
658 fatal("Syscall %d out of range", callnum);
659

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581{
582 num_syscalls++;
583
584 SyscallDesc *desc = getDesc(callnum);
585 if (desc == NULL)
586 fatal("Syscall %d out of range", callnum);
587

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