banan-os/kernel/include/kernel/Syscall.h

28 lines
545 B
C++

#pragma once
#include <kernel/Attributes.h>
#include <kernel/IDT.h>
#include <stdint.h>
#include <sys/syscall.h>
namespace Kernel
{
ALWAYS_INLINE long syscall(int syscall, uintptr_t arg1 = 0, uintptr_t arg2 = 0, uintptr_t arg3 = 0, uintptr_t arg4 = 0, uintptr_t arg5 = 0)
{
long ret;
asm volatile("int %[irq]"
: "=a"(ret)
: [irq]"i"(IRQ_SYSCALL)
, "a"(syscall)
, "b"((uintptr_t)arg1)
, "c"((uintptr_t)arg2)
, "d"((uintptr_t)arg3)
, "S"((uintptr_t)arg4)
, "D"((uintptr_t)arg5)
: "memory");
return ret;
}
}