include/asm-x86/vdso.h

   1 #ifndef _ASM_X86_VDSO_H
   2 #define _ASM_X86_VDSO_H 1
   3
   4 #ifdef CONFIG_X86_64
   5 extern const char VDSO64_PRELINK[];
   6
   7 /*
   8  * Given a pointer to the vDSO image, find the pointer to VDSO64_name
   9  * as that symbol is defined in the vDSO sources or linker script.
  10  */
  11 #define VDSO64_SYMBOL(base, name) ({            \
  12         extern const char VDSO64_##name[];      \
  13         (void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); })
  14 #endif
  15
  16 #if defined CONFIG_X86_32 || defined CONFIG_COMPAT
  17 extern const char VDSO32_PRELINK[];
  18
  19 /*
  20  * Given a pointer to the vDSO image, find the pointer to VDSO32_name
  21  * as that symbol is defined in the vDSO sources or linker script.
  22  */
  23 #define VDSO32_SYMBOL(base, name) ({            \
  24         extern const char VDSO32_##name[];      \
  25         (void *) (VDSO32_##name - VDSO32_PRELINK + (unsigned long) (base)); })
  26 #endif
  27
  28 #endif  /* asm-x86/vdso.h */