3 * Copyright (c) 2003-2004 The Regents of The University of Michigan
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include "arch/mips/isa_traits.hh"
35 #include "arch/mips/process.hh"
36 #include "base/loader/object_file.hh"
37 #include "base/misc.hh"
38 #include "cpu/thread_context.hh"
39 #include "sim/system.hh"
42 using namespace MipsISA
;
44 Addr
MipsLiveProcess::stack_start
= 0x7FFFFFFF;
46 MipsLiveProcess::MipsLiveProcess(const std::string
&nm
, ObjectFile
*objFile
,
47 System
*_system
, int stdin_fd
, int stdout_fd
, int stderr_fd
,
48 std::vector
<std::string
> &argv
, std::vector
<std::string
> &envp
)
49 : LiveProcess(nm
, objFile
, _system
, stdin_fd
, stdout_fd
, stderr_fd
,
52 // Set up stack. On MIPS, stack starts at the top of kuseg
53 // user address space. MIPS stack grows down from here
54 stack_base
= stack_start
;
56 // Set pointer for next thread stack. Reserve 8M for main stack.
57 next_thread_stack_base
= stack_base
- (8 * 1024 * 1024);
58 stack_start
= next_thread_stack_base
;
60 // Set up break point (Top of Heap)
61 brk_point
= objFile
->dataBase() + objFile
->dataSize() + objFile
->bssSize();
62 brk_point
= roundUp(brk_point
, VMPageSize
);
64 // Set up region for mmaps. For now, start at bottom of kuseg space.
65 mmap_start
= mmap_end
= 0x10000;
69 MipsLiveProcess::startup()
71 argsInit(MachineBytes
, VMPageSize
);