#include <linux/livepatch.h>
#include <linux/resume_user_mode.h>
#include <linux/tick.h>
+#include <linux/kmsan.h>
#include <asm/entry-common.h>
* done between establishing state and enabling interrupts. The caller must
* enable interrupts before invoking syscall_enter_from_user_mode_work().
*/
-void enter_from_user_mode(struct pt_regs *regs);
+static __always_inline void enter_from_user_mode(struct pt_regs *regs)
+{
+ arch_enter_from_user_mode(regs);
+ lockdep_hardirqs_off(CALLER_ADDR0);
+
+ CT_WARN_ON(__ct_state() != CONTEXT_USER);
+ user_exit_irqoff();
+
+ instrumentation_begin();
+ kmsan_unpoison_entry_regs(regs);
+ trace_hardirqs_off_finish();
+ instrumentation_end();
+}
/**
* syscall_enter_from_user_mode_prepare - Establish state and enable interrupts
#define CREATE_TRACE_POINTS
#include <trace/events/syscalls.h>
-/* See comment for enter_from_user_mode() in entry-common.h */
-static __always_inline void __enter_from_user_mode(struct pt_regs *regs)
-{
- arch_enter_from_user_mode(regs);
- lockdep_hardirqs_off(CALLER_ADDR0);
-
- CT_WARN_ON(__ct_state() != CONTEXT_USER);
- user_exit_irqoff();
-
- instrumentation_begin();
- kmsan_unpoison_entry_regs(regs);
- trace_hardirqs_off_finish();
- instrumentation_end();
-}
-
-void noinstr enter_from_user_mode(struct pt_regs *regs)
-{
- __enter_from_user_mode(regs);
-}
-
static inline void syscall_enter_audit(struct pt_regs *regs, long syscall)
{
if (unlikely(audit_context())) {
{
long ret;
- __enter_from_user_mode(regs);
+ enter_from_user_mode(regs);
instrumentation_begin();
local_irq_enable();
noinstr void syscall_enter_from_user_mode_prepare(struct pt_regs *regs)
{
- __enter_from_user_mode(regs);
+ enter_from_user_mode(regs);
instrumentation_begin();
local_irq_enable();
instrumentation_end();
noinstr void irqentry_enter_from_user_mode(struct pt_regs *regs)
{
- __enter_from_user_mode(regs);
+ enter_from_user_mode(regs);
}
noinstr void irqentry_exit_to_user_mode(struct pt_regs *regs)