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/*
* Copyright 2007 The Hewlett-Packard Development Company
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright 2020 Google Inc.
*
* 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.
*/
#ifndef __ARCH_X86_LINUX_SE_WORKLOAD_HH__
#define __ARCH_X86_LINUX_SE_WORKLOAD_HH__
#include "arch/x86/linux/linux.hh"
#include "params/X86EmuLinux.hh"
#include "sim/process.hh"
#include "sim/se_workload.hh"
#include "sim/syscall_abi.hh"
#include "sim/syscall_desc.hh"
namespace X86ISA
{
class EmuLinux : public SEWorkload
{
public:
using Params = X86EmuLinuxParams;
EmuLinux(const Params &p);
::Loader::Arch getArch() const override { return ::Loader::X86_64; }
void syscall(ThreadContext *tc) override;
void event(ThreadContext *tc) override;
void pageFault(ThreadContext *tc);
struct SyscallABI64 :
public GenericSyscallABI64, public X86Linux::SyscallABI
{
static const std::vector<IntRegIndex> ArgumentRegs;
};
struct SyscallABI32 :
public GenericSyscallABI32, public X86Linux::SyscallABI
{
static const std::vector<IntRegIndex> ArgumentRegs;
};
private:
static SyscallDescTable<SyscallABI64> syscallDescs64;
static SyscallDescTable<SyscallABI32> syscallDescs32;
};
} // namespace X86ISA
namespace GuestABI
{
template <typename Arg>
struct Argument<X86ISA::EmuLinux::SyscallABI32, Arg,
typename std::enable_if_t<std::is_integral<Arg>::value &&
X86ISA::EmuLinux::SyscallABI32::IsWide<Arg>::value>>
{
using ABI = X86ISA::EmuLinux::SyscallABI32;
static Arg
get(ThreadContext *tc, typename ABI::State &state)
{
panic_if(state + 1 >= ABI::ArgumentRegs.size(),
"Ran out of syscall argument registers.");
auto low = ABI::ArgumentRegs[state++];
auto high = ABI::ArgumentRegs[state++];
return (Arg)ABI::mergeRegs(tc, low, high);
}
};
} // namespace GuestABI
#endif // __ARCH_X86_LINUX_SE_WORKLOAD_HH__