mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-14 18:00:46 +02:00
Ryan Houdek
37983006f0
Sadly these things can't be split without breaking functionality so it turns in to a bit of a mess. SyscallHandler is very much something that is a Linux only construct and shouldn't be in FEXCore itself. Lets the frontend register a Syscallhandler with FEXCore. FEXCore itself is then aware of the current syscall ABI and handles the ABI in an optimal fashion. So it is not a 100% clean break otherwise we would lose performance. The SignalDelegator then needs to move to the frontend since the SyscallHandler requires it for signal based syscalls. The CPU backend signal handling still needs to happen in FEXCore because it is a very tight coupling with the CPU backend. Once we need to support more Signal handling we can give the backends cleaner support to select which specific OS handler to handle.
94 lines
3.6 KiB
C++
94 lines
3.6 KiB
C++
#include "Tests/LinuxSyscalls/Syscalls.h"
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#include "Tests/LinuxSyscalls/x64/Syscalls.h"
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#include "Tests/LinuxSyscalls/x32/Syscalls.h"
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#include <stdint.h>
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#include <sched.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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namespace FEX::HLE {
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void RegisterSched() {
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REGISTER_SYSCALL_IMPL(sched_yield, [](FEXCore::Core::InternalThreadState *Thread) -> uint64_t {
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uint64_t Result = ::sched_yield();
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(getpriority, [](FEXCore::Core::InternalThreadState *Thread, int which, int who) -> uint64_t {
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uint64_t Result = ::syscall(SYS_getpriority, which, who);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(setpriority, [](FEXCore::Core::InternalThreadState *Thread, int which, int who, int prio) -> uint64_t {
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uint64_t Result = ::setpriority(which, who, prio);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_setparam, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, const struct sched_param *param) -> uint64_t {
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uint64_t Result = ::sched_setparam(pid, param);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_getparam, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, struct sched_param *param) -> uint64_t {
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uint64_t Result = ::sched_getparam(pid, param);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_setscheduler, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, int policy, const struct sched_param *param) -> uint64_t {
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uint64_t Result = ::sched_setscheduler(pid, policy, param);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_getscheduler, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid) -> uint64_t {
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uint64_t Result = ::sched_getscheduler(pid);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_get_priority_max, [](FEXCore::Core::InternalThreadState *Thread, int policy) -> uint64_t {
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uint64_t Result = ::sched_get_priority_max(policy);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_get_priority_min, [](FEXCore::Core::InternalThreadState *Thread, int policy) -> uint64_t {
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uint64_t Result = ::sched_get_priority_min(policy);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_setaffinity, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, size_t cpusetsize, const unsigned long *mask) -> uint64_t {
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return 0;
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});
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REGISTER_SYSCALL_IMPL(sched_getaffinity, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, size_t cpusetsize, unsigned char *mask) -> uint64_t {
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uint64_t Cores = FEX::HLE::_SyscallHandler->ThreadsConfig();
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uint64_t Bytes = ((Cores+7) / 8);
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// If we don't have at least one byte in the resulting structure
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// then we need to return -EINVAL
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if (cpusetsize < Bytes) {
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return -EINVAL;
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}
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memset(mask, 0, Bytes);
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for (uint64_t i = 0; i < Cores; ++i) {
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mask[i / 8] |= (1 << (i % 8));
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}
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// Returns the number of bytes written in to mask
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return Bytes;
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});
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REGISTER_SYSCALL_IMPL(sched_setattr, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, struct sched_attr *attr, unsigned int flags) -> uint64_t {
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uint64_t Result = ::syscall(SYS_sched_setattr, pid, attr, flags);
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SYSCALL_ERRNO();
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});
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REGISTER_SYSCALL_IMPL(sched_getattr, [](FEXCore::Core::InternalThreadState *Thread, pid_t pid, struct sched_attr *attr, unsigned int size, unsigned int flags) -> uint64_t {
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uint64_t Result = ::syscall(SYS_sched_getattr, pid, attr, size, flags);
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SYSCALL_ERRNO();
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});
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}
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}
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