7976794aad
interfaces, and specific support for Alpha Linux. Split syscall emulation
functions into several groups, based on whether they depend on the specific
OS and/or architecture (and all combinations of above), including the use of
template functions to support syscalls with slightly different constants
or interface structs.
arch/alpha/alpha_tru64_process.cc:
Incorporate full Tru64 object definition here, including structure and constant definitions.
This way we can wrap all of the functions inside the object, and not worry about namespace
conflicts because no one outside this file will ever see it.
base/loader/aout_object.cc:
base/loader/aout_object.hh:
base/loader/ecoff_object.cc:
base/loader/ecoff_object.hh:
base/loader/elf_object.cc:
base/loader/elf_object.hh:
base/loader/object_file.cc:
base/loader/object_file.hh:
Add enums to ObjectFile to indicate the object's architecture and operating system.
cpu/exec_context.cc:
prog.hh is now process.hh
cpu/exec_context.hh:
prog.hh is now process.hh
move architecture-specific syscall arg accessors into ExecContext
cpu/simple_cpu/simple_cpu.cc:
No need to include prog.hh (which has been renamed)
sim/process.cc:
sim/process.hh:
LiveProcess is now effectively an abstract base class.
New LiveProcess::create() function takes an object file and dynamically picks the
appropriate subclass of LiveProcess to handle the syscall interface that file expects
(currently Tru64 or Linux).
--HG--
rename : arch/alpha/fake_syscall.cc => arch/alpha/alpha_tru64_process.cc
rename : sim/prog.cc => sim/process.cc
rename : sim/prog.hh => sim/process.hh
extra : convert_revision : 4a03ca7d94a34177cb672931f8aae83a6bad179a
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
/*
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* Copyright (c) 2003 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string>
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#include "base/loader/aout_object.hh"
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#include "mem/functional_mem/functional_memory.hh"
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#include "base/loader/symtab.hh"
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#include "base/trace.hh" // for DPRINTF
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#include "base/loader/exec_aout.h"
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using namespace std;
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ObjectFile *
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AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
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{
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if (!N_BADMAG(*(aout_exechdr *)data)) {
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// right now this is only used for Alpha PAL code
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return new AoutObject(fname, fd, len, data,
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ObjectFile::Alpha, ObjectFile::UnknownOpSys);
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}
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else {
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return NULL;
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}
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}
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AoutObject::AoutObject(const string &_filename, int _fd,
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size_t _len, uint8_t *_data,
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Arch _arch, OpSys _opSys)
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: ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
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{
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execHdr = (aout_exechdr *)fileData;
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entry = execHdr->entry;
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text.baseAddr = N_TXTADDR(*execHdr);
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text.size = execHdr->tsize;
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data.baseAddr = N_DATADDR(*execHdr);
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data.size = execHdr->dsize;
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bss.baseAddr = N_BSSADDR(*execHdr);
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bss.size = execHdr->bsize;
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DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
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text.baseAddr, text.size, data.baseAddr, data.size,
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bss.baseAddr, bss.size);
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}
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bool
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AoutObject::loadSections(FunctionalMemory *mem, bool loadPhys)
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{
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Addr textAddr = text.baseAddr;
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Addr dataAddr = data.baseAddr;
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if (loadPhys) {
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textAddr &= (ULL(1) << 40) - 1;
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dataAddr &= (ULL(1) << 40) - 1;
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}
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// Since we don't really have an MMU and all memory is
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// zero-filled, there's no need to set up the BSS segment.
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if (text.size != 0)
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mem->prot_write(textAddr, fileData + N_TXTOFF(*execHdr), text.size);
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if (data.size != 0)
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mem->prot_write(dataAddr, fileData + N_DATOFF(*execHdr), data.size);
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return true;
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}
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bool
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AoutObject::loadGlobalSymbols(SymbolTable *symtab)
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{
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// a.out symbols not supported yet
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return false;
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}
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bool
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AoutObject::loadLocalSymbols(SymbolTable *symtab)
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{
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// a.out symbols not supported yet
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return false;
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}
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