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-rw-r--r--arch/powerpc/include/asm/vdso.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/vdso.h b/arch/powerpc/include/asm/vdso.h
new file mode 100644
index 000000000000..26fc449bd989
--- /dev/null
+++ b/arch/powerpc/include/asm/vdso.h
@@ -0,0 +1,78 @@
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 */
22extern unsigned long vdso64_rt_sigtramp;
23extern unsigned long vdso32_sigtramp;
24extern 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__ */