109 lines
3.6 KiB
C++
109 lines
3.6 KiB
C++
/*
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* Copyright (c) 2003-2005 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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* Authors: Steve Reinhardt
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* Gabe Black
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* Ali Saidi
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*/
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#include "arch/sparc/isa_traits.hh"
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#include "arch/sparc/linux/process.hh"
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#include "arch/sparc/regfile.hh"
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#include "base/trace.hh"
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#include "cpu/thread_context.hh"
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#include "kern/linux/linux.hh"
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#include "sim/process.hh"
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#include "sim/syscall_emul.hh"
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using namespace std;
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using namespace SparcISA;
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SyscallDesc*
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SparcLinuxProcess::getDesc(int callnum)
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{
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if (callnum < 0 || callnum > Num_Syscall_Descs)
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return NULL;
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return &syscallDescs[callnum];
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}
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SyscallDesc*
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SparcLinuxProcess::getDesc32(int callnum)
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{
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if (callnum < 0 || callnum > Num_Syscall32_Descs)
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return NULL;
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return &syscall32Descs[callnum];
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}
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SparcLinuxProcess::SparcLinuxProcess() :
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Num_Syscall_Descs(284), //sizeof(syscallDescs) / sizeof(SyscallDesc)),
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Num_Syscall32_Descs(299) //sizeof(syscall32Descs) / sizeof(SyscallDesc))
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{
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// The sparc syscall table must be <= 284 entries because that is all there
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// is space for.
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assert(Num_Syscall_Descs <= 284);
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// The sparc 32 bit syscall table bust be <= 299 entries because that is
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// all there is space for.
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assert(Num_Syscall_Descs <= 299);
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}
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Sparc32LinuxProcess::Sparc32LinuxProcess(LiveProcessParams * params,
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ObjectFile *objFile)
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: Sparc32LiveProcess(params, objFile)
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{}
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void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
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{
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switch(trapNum)
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{
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case 0x10: //Linux 32 bit syscall trap
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tc->syscall(tc->readIntReg(1));
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break;
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default:
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SparcLiveProcess::handleTrap(trapNum, tc);
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}
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}
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Sparc64LinuxProcess::Sparc64LinuxProcess(LiveProcessParams * params,
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ObjectFile *objFile)
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: Sparc64LiveProcess(params, objFile)
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{}
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void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
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{
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switch(trapNum)
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{
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//case 0x10: //Linux 32 bit syscall trap
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case 0x6d: //Linux 64 bit syscall trap
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tc->syscall(tc->readIntReg(1));
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break;
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default:
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SparcLiveProcess::handleTrap(trapNum, tc);
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}
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}
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