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#ifndef __ASM_VDSO_H
#define __ASM_VDSO_H
/*
* vDSO support interface.
*
* IMPORTANT:
* Do not define storage in this header. This header is included by multiple
* translation units; defining `static` variables here causes each TU to get its
* own copy, which makes initialization inconsistent and prevents dead-stripping.
*
* The actual storage/definitions must live in a single .c file (e.g.
* `lib/libc/internal/init/vdso.c`), and this header should only declare them.
*/
struct timespec;
#define __VDSO_CLOCK_GETTIME
#define __VDSO_GETCPU
#define __VDSO_TIME
/* Resolved vDSO entry points (set by __init_vdso). */
extern int (*__vdso_clock_gettime)(int, struct timespec *);
extern int (*__vdso_getcpu)(unsigned *, unsigned *, void *);
extern int (*__vdso_time)(long *);
/* Symbol table used by __init_vdso to locate vDSO functions. */
struct __vdso_sym {
const char *name;
void *func;
};
extern struct __vdso_sym __vdso_symtab[];
#endif
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