ec5a24fba4
This type can hold any generic state related to locating return types and arguments in addition to simple position information. To make that clearer, this change renames the Position type to State. Change-Id: I50ff2ec61c3eba0e9505c66ce32e27b515bd4b27 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24107 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Gabe Black <gabeblack@google.com>
107 lines
4.0 KiB
C++
107 lines
4.0 KiB
C++
/*
|
|
* Copyright (c) 2007 The Hewlett-Packard Development Company
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 __X86_LINUX_PROCESS_HH__
|
|
#define __X86_LINUX_PROCESS_HH__
|
|
|
|
#include "arch/x86/linux/linux.hh"
|
|
#include "arch/x86/process.hh"
|
|
#include "sim/process.hh"
|
|
#include "sim/syscall_abi.hh"
|
|
|
|
struct ProcessParams;
|
|
struct ThreadContext;
|
|
|
|
namespace X86ISA {
|
|
|
|
class X86_64LinuxProcess : public X86_64Process
|
|
{
|
|
public:
|
|
/// Constructor.
|
|
X86_64LinuxProcess(ProcessParams * params, ObjectFile *objFile);
|
|
void syscall(ThreadContext *tc, Fault *fault) override;
|
|
void clone(ThreadContext *old_tc, ThreadContext *new_tc, Process *process,
|
|
RegVal flags) override;
|
|
|
|
struct SyscallABI : public GenericSyscallABI64, public X86Linux::SyscallABI
|
|
{
|
|
static const std::vector<IntRegIndex> ArgumentRegs;
|
|
};
|
|
};
|
|
|
|
class I386LinuxProcess : public I386Process
|
|
{
|
|
public:
|
|
/// Constructor.
|
|
I386LinuxProcess(ProcessParams * params, ObjectFile *objFile);
|
|
void syscall(ThreadContext *tc, Fault *fault) override;
|
|
void clone(ThreadContext *old_tc, ThreadContext *new_tc, Process *process,
|
|
RegVal flags) override;
|
|
|
|
struct SyscallABI : public GenericSyscallABI32, public X86Linux::SyscallABI
|
|
{
|
|
static const std::vector<IntRegIndex> ArgumentRegs;
|
|
};
|
|
};
|
|
|
|
} // namespace X86ISA
|
|
|
|
namespace GuestABI
|
|
{
|
|
|
|
template <typename Arg>
|
|
struct Argument<X86ISA::I386LinuxProcess::SyscallABI, Arg,
|
|
typename std::enable_if<
|
|
X86ISA::I386LinuxProcess::SyscallABI::IsWide<Arg>::value>::type>
|
|
{
|
|
using ABI = X86ISA::I386LinuxProcess::SyscallABI;
|
|
|
|
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 // __X86_LINUX_PROCESS_HH__
|