mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 20:20:53 +07:00
23adec554a
Add the notrace annotations to the vsyscall functions - there we are not in kernel context yet, so the tracer function cannot (and must not) be called. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
#ifndef _ASM_X86_64_VSYSCALL_H_
|
|
#define _ASM_X86_64_VSYSCALL_H_
|
|
|
|
enum vsyscall_num {
|
|
__NR_vgettimeofday,
|
|
__NR_vtime,
|
|
__NR_vgetcpu,
|
|
};
|
|
|
|
#define VSYSCALL_START (-10UL << 20)
|
|
#define VSYSCALL_SIZE 1024
|
|
#define VSYSCALL_END (-2UL << 20)
|
|
#define VSYSCALL_MAPPED_PAGES 1
|
|
#define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/seqlock.h>
|
|
|
|
#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16)))
|
|
#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16)))
|
|
|
|
/* Definitions for CONFIG_GENERIC_TIME definitions */
|
|
#define __section_vsyscall_gtod_data __attribute__ \
|
|
((unused, __section__ (".vsyscall_gtod_data"),aligned(16)))
|
|
#define __section_vsyscall_clock __attribute__ \
|
|
((unused, __section__ (".vsyscall_clock"),aligned(16)))
|
|
#define __vsyscall_fn \
|
|
__attribute__ ((unused, __section__(".vsyscall_fn"))) notrace
|
|
|
|
#define VGETCPU_RDTSCP 1
|
|
#define VGETCPU_LSL 2
|
|
|
|
extern int __vgetcpu_mode;
|
|
extern volatile unsigned long __jiffies;
|
|
|
|
/* kernel space (writeable) */
|
|
extern int vgetcpu_mode;
|
|
extern struct timezone sys_tz;
|
|
|
|
extern void map_vsyscall(void);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_X86_64_VSYSCALL_H_ */
|