b74e16c0cf0102dfebf0557aad00197c7f103008
[linux-3.10.git] / 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__ */