include/asm-ppc64/vdso.h

   1 #ifndef __PPC64_VDSO_H__
   2 #define __PPC64_VDSO_H__
   3
   4 #ifdef __KERNEL__
   5
   6 /* Default link addresses for the vDSOs */
   7 #define VDSO32_LBASE    0
   8 #define VDSO64_LBASE    0
   9
  10 /* Default map addresses */
  11 #define VDSO32_MBASE    0x100000
  12 #define VDSO64_MBASE    0x100000
  13
  14 #define VDSO_VERSION_STRING     LINUX_2.6.12
  15
  16 /* Define if 64 bits VDSO has procedure descriptors */
  17 #undef VDS64_HAS_DESCRIPTORS
  18
  19 #ifndef __ASSEMBLY__
  20
  21 extern unsigned int vdso64_pages;
  22 extern unsigned int vdso32_pages;
  23
  24 /* Offsets relative to thread->vdso_base */
  25 extern unsigned long vdso64_rt_sigtramp;
  26 extern unsigned long vdso32_sigtramp;
  27 extern unsigned long vdso32_rt_sigtramp;
  28
  29 extern void vdso_init(void);
  30
  31 #else /* __ASSEMBLY__ */
  32
  33 #ifdef __VDSO64__
  34 #ifdef VDS64_HAS_DESCRIPTORS
  35 #define V_FUNCTION_BEGIN(name)          \
  36         .globl name;                    \
  37         .section ".opd","a";            \
  38         .align 3;                       \
  39         name:                           \
  40         .quad .name,.TOC.@tocbase,0;    \
  41         .previous;                      \
  42         .globl .name;                   \
  43         .type .name,@function;          \
  44         .name:                          \
  45
  46 #define V_FUNCTION_END(name)            \
  47         .size .name,.-.name;
  48
  49 #define V_LOCAL_FUNC(name) (.name)
  50
  51 #else /* VDS64_HAS_DESCRIPTORS */
  52
  53 #define V_FUNCTION_BEGIN(name)          \
  54         .globl name;                    \
  55         name:                           \
  56
  57 #define V_FUNCTION_END(name)            \
  58         .size name,.-name;
  59
  60 #define V_LOCAL_FUNC(name) (name)
  61
  62 #endif /* VDS64_HAS_DESCRIPTORS */
  63 #endif /* __VDSO64__ */
  64
  65 #ifdef __VDSO32__
  66
  67 #define V_FUNCTION_BEGIN(name)          \
  68         .globl name;                    \
  69         .type name,@function;           \
  70         name:                           \
  71
  72 #define V_FUNCTION_END(name)            \
  73         .size name,.-name;
  74
  75 #define V_LOCAL_FUNC(name) (name)
  76
  77 #endif /* __VDSO32__ */
  78
  79 #endif /* __ASSEMBLY__ */
  80
  81 #endif /* __KERNEL__ */
  82
  83 #endif /* __PPC64_VDSO_H__ */