arch/powerpc/include/asm/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    0x100000
   8 #define VDSO64_LBASE    0x100000
   9
  10 /* Default map addresses */
  11 #define VDSO32_MBASE    VDSO32_LBASE
  12 #define VDSO64_MBASE    VDSO64_LBASE
  13
  14 #define VDSO_VERSION_STRING     LINUX_2.6.15
  15
  16 /* Define if 64 bits VDSO has procedure descriptors */
  17 #undef VDS64_HAS_DESCRIPTORS
  18
  19 #ifndef __ASSEMBLY__
  20
  21 /* Offsets relative to thread->vdso_base */
  22 extern unsigned long vdso64_rt_sigtramp;
  23 extern unsigned long vdso32_sigtramp;
  24 extern unsigned long vdso32_rt_sigtramp;
  25
  26 #else /* __ASSEMBLY__ */
  27
  28 #ifdef __VDSO64__
  29 #ifdef VDS64_HAS_DESCRIPTORS
  30 #define V_FUNCTION_BEGIN(name)          \
  31         .globl name;                    \
  32         .section ".opd","a";            \
  33         .align 3;                       \
  34         name:                           \
  35         .quad .name,.TOC.@tocbase,0;    \
  36         .previous;                      \
  37         .globl .name;                   \
  38         .type .name,@function;          \
  39         .name:                          \
  40
  41 #define V_FUNCTION_END(name)            \
  42         .size .name,.-.name;
  43
  44 #define V_LOCAL_FUNC(name) (.name)
  45
  46 #else /* VDS64_HAS_DESCRIPTORS */
  47
  48 #define V_FUNCTION_BEGIN(name)          \
  49         .globl name;                    \
  50         name:                           \
  51
  52 #define V_FUNCTION_END(name)            \
  53         .size name,.-name;
  54
  55 #define V_LOCAL_FUNC(name) (name)
  56
  57 #endif /* VDS64_HAS_DESCRIPTORS */
  58 #endif /* __VDSO64__ */
  59
  60 #ifdef __VDSO32__
  61
  62 #define V_FUNCTION_BEGIN(name)          \
  63         .globl name;                    \
  64         .type name,@function;           \
  65         name:                           \
  66
  67 #define V_FUNCTION_END(name)            \
  68         .size name,.-name;
  69
  70 #define V_LOCAL_FUNC(name) (name)
  71
  72 #endif /* __VDSO32__ */
  73
  74 #endif /* __ASSEMBLY__ */
  75
  76 #endif /* __KERNEL__ */
  77
  78 #endif /* __PPC64_VDSO_H__ */