blob: 2988223483f99c5225e047b72890a4607712d2bc [file] [log] [blame]
/*
* 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.
*/
#include "arch/sparc/linux/process.hh"
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/registers.hh"
#include "base/loader/object_file.hh"
#include "base/trace.hh"
#include "cpu/thread_context.hh"
#include "kern/linux/linux.hh"
#include "sim/process.hh"
#include "sim/syscall_desc.hh"
#include "sim/syscall_emul.hh"
using namespace std;
using namespace SparcISA;
namespace
{
class SparcLinuxObjectFileLoader : public Process::Loader
{
public:
Process *
load(ProcessParams *params, ::Loader::ObjectFile *obj_file) override
{
auto arch = obj_file->getArch();
auto opsys = obj_file->getOpSys();
if (arch != ::Loader::SPARC64 && arch != ::Loader::SPARC32)
return nullptr;
if (opsys == ::Loader::UnknownOpSys) {
warn("Unknown operating system; assuming Linux.");
opsys = ::Loader::Linux;
}
if (opsys != ::Loader::Linux)
return nullptr;
if (arch == ::Loader::SPARC64)
return new Sparc64LinuxProcess(params, obj_file);
else
return new Sparc32LinuxProcess(params, obj_file);
}
};
SparcLinuxObjectFileLoader loader;
} // anonymous namespace
Sparc32LinuxProcess::Sparc32LinuxProcess(ProcessParams * params,
::Loader::ObjectFile *objFile)
: Sparc32Process(params, objFile)
{}
void
Sparc32LinuxProcess::syscall(ThreadContext *tc, Fault *fault)
{
Sparc32Process::syscall(tc, fault);
syscall32Descs.get(tc->readIntReg(1))->doSyscall(tc, fault);
}
void
Sparc32LinuxProcess::handleTrap(int trapNum, ThreadContext *tc, Fault *fault)
{
switch (trapNum) {
case 0x10: //Linux 32 bit syscall trap
tc->syscall(fault);
break;
default:
SparcProcess::handleTrap(trapNum, tc, fault);
}
}
Sparc64LinuxProcess::Sparc64LinuxProcess(ProcessParams * params,
::Loader::ObjectFile *objFile)
: Sparc64Process(params, objFile)
{}
void
Sparc64LinuxProcess::syscall(ThreadContext *tc, Fault *fault)
{
Sparc64Process::syscall(tc, fault);
syscallDescs.get(tc->readIntReg(1))->doSyscall(tc, fault);
}
void
Sparc64LinuxProcess::getContext(ThreadContext *tc)
{
warn("The getcontext trap is not implemented on SPARC");
}
void
Sparc64LinuxProcess::setContext(ThreadContext *tc)
{
panic("The setcontext trap is not implemented on SPARC");
}
void
Sparc64LinuxProcess::handleTrap(int trapNum, ThreadContext *tc, Fault *fault)
{
switch (trapNum) {
// case 0x10: // Linux 32 bit syscall trap
case 0x6d: // Linux 64 bit syscall trap
tc->syscall(fault);
break;
case 0x6e: // Linux 64 bit getcontext trap
getContext(tc);
break;
case 0x6f: // Linux 64 bit setcontext trap
setContext(tc);
break;
default:
SparcProcess::handleTrap(trapNum, tc, fault);
}
}