[deliverable/linux.git] / arch / x86_64 / vdso / vextern.h

#ifndef VEXTERN
#include <asm/vsyscall.h>
#define VEXTERN(x) \
	extern typeof(x) *vdso_ ## x __attribute__((visibility("hidden")));
#endif

#define VMAGIC 0xfeedbabeabcdefabUL

/* Any kernel variables used in the vDSO must be exported in the main
   kernel's vmlinux.lds.S/vsyscall.h/proper __section and
   put into vextern.h and be referenced as a pointer with vdso prefix.
   The main kernel later fills in the values.   */

VEXTERN(jiffies)
VEXTERN(vgetcpu_mode)
VEXTERN(vsyscall_gtod_data)
Commit	Line	Data
2aae950b AK	1	#ifndef VEXTERN
	2	#include <asm/vsyscall.h>
	3	#define VEXTERN(x) \
	4	extern typeof(x) *vdso_ ## x __attribute__((visibility("hidden")));
	5	#endif
	6
	7	#define VMAGIC 0xfeedbabeabcdefabUL
	8
	9	/* Any kernel variables used in the vDSO must be exported in the main
	10	kernel's vmlinux.lds.S/vsyscall.h/proper __section and
	11	put into vextern.h and be referenced as a pointer with vdso prefix.
	12	The main kernel later fills in the values. */
	13
	14	VEXTERN(jiffies)
	15	VEXTERN(vgetcpu_mode)
	16	VEXTERN(vsyscall_gtod_data)