summaryrefslogtreecommitdiff
path: root/src/kernel/arch/amd64/sysenter.c
blob: b5cec738c952e9e9239e37f122f52be3e9896b8b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
#include <camellia/syscalls.h>
#include <kernel/arch/amd64/sysenter.h>
#include <kernel/arch/generic.h>
#include <kernel/proc.h>

struct registers _sysexit_regs;

_Noreturn void sysexit(struct registers regs) {
	_sysexit_regs = regs;
	_sysexit_real();
}

_Noreturn void sysenter_stage2(void) {
	struct registers *regs = &process_current->regs;
	*regs = _sysexit_regs;
	_syscall(regs->rdi, regs->rsi, regs->rdx, regs->r10, regs->r8);
	process_switch_any();
}