arch/arm64/include/asm/vdso.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2012 ARM Limited
   4  */
   5 #ifndef __ASM_VDSO_H
   6 #define __ASM_VDSO_H
   7
   8 /*
   9  * Default link address for the vDSO.
  10  * Since we randomise the VDSO mapping, there's little point in trying
  11  * to prelink this.
  12  */
  13 #define VDSO_LBASE      0x0
  14
  15 #define __VVAR_PAGES    2
  16
  17 #ifndef __ASSEMBLY__
  18
  19 #include <generated/vdso-offsets.h>
  20 #ifdef CONFIG_COMPAT_VDSO
  21 #include <generated/vdso32-offsets.h>
  22 #endif
  23
  24 #define VDSO_SYMBOL(base, name)                                            \
  25 ({                                                                         \
  26         (void *)(vdso_offset_##name - VDSO_LBASE + (unsigned long)(base)); \
  27 })
  28
  29 #endif /* !__ASSEMBLY__ */
  30
  31 #endif /* __ASM_VDSO_H */