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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Steve Reinhardt
* Gabe Black
* Ali Saidi
*/
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/linux/process.hh"
#include "arch/sparc/regfile.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "kern/linux/linux.hh"
#include "sim/process.hh"
#include "sim/syscall_emul.hh"
using namespace std;
using namespace SparcISA;
SyscallDesc*
SparcLinuxProcess::getDesc(int callnum)
{
if (callnum < 0 || callnum > Num_Syscall_Descs)
return NULL;
return &syscallDescs[callnum];
}
SyscallDesc*
SparcLinuxProcess::getDesc32(int callnum)
{
if (callnum < 0 || callnum > Num_Syscall32_Descs)
return NULL;
return &syscall32Descs[callnum];
}
SparcLinuxProcess::SparcLinuxProcess() :
Num_Syscall_Descs(284), //sizeof(syscallDescs) / sizeof(SyscallDesc)),
Num_Syscall32_Descs(299) //sizeof(syscall32Descs) / sizeof(SyscallDesc))
{
// The sparc syscall table must be <= 284 entries because that is all there
// is space for.
assert(Num_Syscall_Descs <= 284);
// The sparc 32 bit syscall table bust be <= 299 entries because that is
// all there is space for.
assert(Num_Syscall_Descs <= 299);
}
Sparc32LinuxProcess::Sparc32LinuxProcess(LiveProcessParams * params,
ObjectFile *objFile)
: Sparc32LiveProcess(params, objFile)
{}
void Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
{
switch(trapNum)
{
case 0x10: //Linux 32 bit syscall trap
tc->syscall(tc->readIntReg(1));
break;
default:
SparcLiveProcess::handleTrap(trapNum, tc);
}
}
Sparc64LinuxProcess::Sparc64LinuxProcess(LiveProcessParams * params,
ObjectFile *objFile)
: Sparc64LiveProcess(params, objFile)
{}
void Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc)
{
switch(trapNum)
{
//case 0x10: //Linux 32 bit syscall trap
case 0x6d: //Linux 64 bit syscall trap
tc->syscall(tc->readIntReg(1));
break;
default:
SparcLiveProcess::handleTrap(trapNum, tc);
}
}
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