Files
FEX-Emu--FEX/Source/Tools/LinuxEmulation/LinuxSyscalls/x32/Timer.cpp
T
LC 4069a9f7d5 Timer: Fix typo in timer_gettime
This should be passed by reference rather than by value.
2026-07-10 05:33:06 -04:00

108 lines
4.3 KiB
C++

// SPDX-License-Identifier: MIT
/*
$info$
tags: LinuxSyscalls|syscalls-x86-32
$end_info$
*/
#include "LinuxSyscalls/Syscalls.h"
#include "LinuxSyscalls/Types.h"
#include "LinuxSyscalls/x32/Syscalls.h"
#include "LinuxSyscalls/x32/Types.h"
#include "LinuxSyscalls/x64/Syscalls.h"
#include <stdint.h>
#include <syscall.h>
#include <sys/time.h>
#include <unistd.h>
namespace FEXCore::Core {
struct CpuStateFrame;
}
ARG_TO_STR(FEX::HLE::x32::compat_ptr<FEX::HLE::x32::sigevent32>, "%lx")
namespace FEX::HLE::x32 {
void RegisterTimer(FEX::HLE::SyscallHandler* Handler) {
REGISTER_SYSCALL_IMPL_X32(timer_settime,
[](FEXCore::Core::CpuStateFrame* Frame, kernel_timer_t timerid, int flags,
const FEX::HLE::x32::old_itimerspec32* new_value, FEX::HLE::x32::old_itimerspec32* old_value) -> uint64_t {
itimerspec new_value_host {};
itimerspec old_value_host {};
itimerspec* old_value_host_p {};
FaultSafeUserMemAccess::VerifyIsReadable(new_value, sizeof(*new_value));
new_value_host = *new_value;
if (old_value) {
old_value_host_p = &old_value_host;
}
uint64_t Result = ::syscall(SYSCALL_DEF(timer_settime), timerid, flags, &new_value_host, old_value_host_p);
if (Result != -1 && old_value) {
FaultSafeUserMemAccess::VerifyIsWritable(old_value, sizeof(*old_value));
*old_value = old_value_host;
}
SYSCALL_ERRNO();
});
REGISTER_SYSCALL_IMPL_X32(
timer_gettime, [](FEXCore::Core::CpuStateFrame* Frame, kernel_timer_t timerid, FEX::HLE::x32::old_itimerspec32* curr_value) -> uint64_t {
itimerspec curr_value_host {};
uint64_t Result = ::syscall(SYSCALL_DEF(timer_gettime), timerid, &curr_value_host);
FaultSafeUserMemAccess::VerifyIsWritable(curr_value, sizeof(*curr_value));
*curr_value = curr_value_host;
SYSCALL_ERRNO();
});
REGISTER_SYSCALL_IMPL_X32(getitimer, [](FEXCore::Core::CpuStateFrame* Frame, int which, FEX::HLE::x32::itimerval32* curr_value) -> uint64_t {
itimerval val {};
itimerval* val_p {};
if (curr_value) {
val_p = &val;
}
uint64_t Result = ::getitimer(which, val_p);
if (curr_value) {
FaultSafeUserMemAccess::VerifyIsWritable(curr_value, sizeof(*curr_value));
*curr_value = val;
}
SYSCALL_ERRNO();
});
REGISTER_SYSCALL_IMPL_X32(setitimer,
[](FEXCore::Core::CpuStateFrame* Frame, int which, const FEX::HLE::x32::itimerval32* new_value,
FEX::HLE::x32::itimerval32* old_value) -> uint64_t {
itimerval val {};
itimerval old {};
itimerval* val_p {};
itimerval* old_p {};
if (new_value) {
FaultSafeUserMemAccess::VerifyIsReadable(new_value, sizeof(*new_value));
val = *new_value;
val_p = &val;
}
if (old_value) {
old_p = &old;
}
uint64_t Result = ::setitimer(which, val_p, old_p);
if (old_value) {
FaultSafeUserMemAccess::VerifyIsWritable(old_value, sizeof(*old_value));
*old_value = old;
}
SYSCALL_ERRNO();
});
REGISTER_SYSCALL_IMPL_X32(
timer_create,
[](FEXCore::Core::CpuStateFrame* Frame, clockid_t clockid, compat_ptr<FEX::HLE::x32::sigevent32> sevp, kernel_timer_t* timerid) -> uint64_t {
FaultSafeUserMemAccess::VerifyIsReadable(sevp, sizeof(*sevp));
sigevent Host = *sevp;
uint64_t Result = ::syscall(SYSCALL_DEF(timer_create), clockid, &Host, timerid);
SYSCALL_ERRNO();
});
}
} // namespace FEX::HLE::x32