mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-10 08:00:20 +02:00
Ryan Houdek
924723d433
- We can have the SyscallFunctionDefinitions be the correct size out of
the gate. Both tables are always 512 entries in size.
- In the RegisterSyscall_{32,64} handlers, just get the reference using
operator[]. We always know we will be under the size of the array, add
a an assert to check. Removes a bit of vector range checking overhead.
- Namespace 32-bit syscalls like 64-bit syscalls and include in the
regular header like 64-bit. This was just an oversight
- Use std::fill for the syscall gap for the invalid syscall, just a
minor cleanup.
No functional change.
87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
// SPDX-License-Identifier: MIT
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/*
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$info$
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tags: LinuxSyscalls|syscalls-x86-64
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$end_info$
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*/
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#include "LinuxSyscalls/Syscalls.h"
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#include "LinuxSyscalls/x64/Syscalls.h"
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#include "LinuxSyscalls/x64/SyscallsEnum.h"
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#include <FEXCore/HLE/SyscallHandler.h>
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namespace FEX::HLE::x64 {
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void RegisterEpoll(FEX::HLE::SyscallHandler* Handler);
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void RegisterFD(FEX::HLE::SyscallHandler* Handler);
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void RegisterInfo(FEX::HLE::SyscallHandler* Handler);
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void RegisterMemory(FEX::HLE::SyscallHandler* Handler);
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void RegisterSemaphore(FEX::HLE::SyscallHandler* Handler);
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void RegisterSignals(FEX::HLE::SyscallHandler* Handler);
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void RegisterThread(FEX::HLE::SyscallHandler* Handler);
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void RegisterTime(FEX::HLE::SyscallHandler* Handler);
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void RegisterNotImplemented(FEX::HLE::SyscallHandler* Handler);
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void RegisterPassthrough(FEX::HLE::SyscallHandler* Handler);
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x64SyscallHandler::x64SyscallHandler(FEXCore::Context::Context* ctx, FEX::HLE::SignalDelegator* _SignalDelegation)
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: SyscallHandler {ctx, _SignalDelegation} {
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OSABI = FEXCore::HLE::SyscallOSABI::OS_LINUX64;
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RegisterSyscallHandlers();
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}
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void x64SyscallHandler::RegisterSyscallHandlers() {
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FEX::HLE::RegisterEpoll(this);
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FEX::HLE::RegisterFD(this);
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FEX::HLE::RegisterFS(this);
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FEX::HLE::RegisterInfo(this);
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FEX::HLE::RegisterIO(this);
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FEX::HLE::RegisterMemory(this);
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FEX::HLE::RegisterSignals(this);
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FEX::HLE::RegisterThread(this);
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FEX::HLE::RegisterTimer(this);
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FEX::HLE::RegisterNotImplemented(this);
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FEX::HLE::RegisterStubs(this);
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// 64bit specific
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FEX::HLE::x64::RegisterEpoll(this);
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FEX::HLE::x64::RegisterFD(this);
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FEX::HLE::x64::RegisterInfo(this);
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FEX::HLE::x64::RegisterMemory(this);
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FEX::HLE::x64::RegisterSemaphore(this);
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FEX::HLE::x64::RegisterSignals(this);
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FEX::HLE::x64::RegisterThread(this);
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FEX::HLE::x64::RegisterTime(this);
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FEX::HLE::x64::RegisterNotImplemented(this);
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FEX::HLE::x64::RegisterPassthrough(this);
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// x86-64 has a gap of syscalls in the range of [335, 424) where there aren't any
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// These are defined that these must return -ENOSYS
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// This allows x86-64 to start using the common syscall numbers
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// Fill the gap to ensure that FEX doesn't assert
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constexpr int SYSCALL_GAP_BEGIN = 335;
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constexpr int SYSCALL_GAP_END = 424;
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const SyscallFunctionDefinition InvalidSyscall {
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.NumArgs = 0, .Flags = FEXCore::IR::SyscallFlags::DEFAULT, .Ptr = reinterpret_cast<void*>(&UnimplementedSyscall),
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.HostSyscallNumber = SYSCALL_DEF(MAX),
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#ifdef DEBUG_STRACE
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.StraceFmt = "Invalid";
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#endif
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};
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std::fill(Definitions.begin() + SYSCALL_GAP_BEGIN, Definitions.begin() + SYSCALL_GAP_END, InvalidSyscall);
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#if PRINT_MISSING_SYSCALLS
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for (auto& Syscall : SyscallNames) {
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if (Definitions[Syscall.first].Ptr == reinterpret_cast<void*>(&UnimplementedSyscall)) {
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LogMan::Msg::DFmt("Unimplemented syscall: {}", Syscall.second);
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}
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}
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#endif
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}
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fextl::unique_ptr<FEX::HLE::SyscallHandler> CreateHandler(FEXCore::Context::Context* ctx, FEX::HLE::SignalDelegator* _SignalDelegation) {
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return fextl::make_unique<x64SyscallHandler>(ctx, _SignalDelegation);
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}
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} // namespace FEX::HLE::x64
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