tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PPC64_VDSO_H__
3#define __PPC64_VDSO_H__
4
5#ifdef __KERNEL__
6
7/* Default link addresses for the vDSOs */
8#define VDSO32_LBASE 0x0
9#define VDSO64_LBASE 0x0
10
11/* Default map addresses for 32bit vDSO */
12#define VDSO32_MBASE 0x100000
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
26int vdso_getcpu_init(void);
27
28#else /* __ASSEMBLY__ */
29
30#ifdef __VDSO64__
31#ifdef VDS64_HAS_DESCRIPTORS
32#define V_FUNCTION_BEGIN(name) \
33 .globl name; \
34 .section ".opd","a"; \
35 .align 3; \
36 name: \
37 .quad .name,.TOC.@tocbase,0; \
38 .previous; \
39 .globl .name; \
40 .type .name,@function; \
41 .name: \
42
43#define V_FUNCTION_END(name) \
44 .size .name,.-.name;
45
46#define V_LOCAL_FUNC(name) (.name)
47
48#else /* VDS64_HAS_DESCRIPTORS */
49
50#define V_FUNCTION_BEGIN(name) \
51 .globl name; \
52 name: \
53
54#define V_FUNCTION_END(name) \
55 .size name,.-name;
56
57#define V_LOCAL_FUNC(name) (name)
58
59#endif /* VDS64_HAS_DESCRIPTORS */
60#endif /* __VDSO64__ */
61
62#ifdef __VDSO32__
63
64#define V_FUNCTION_BEGIN(name) \
65 .globl name; \
66 .type name,@function; \
67 name: \
68
69#define V_FUNCTION_END(name) \
70 .size name,.-name;
71
72#define V_LOCAL_FUNC(name) (name)
73
74#endif /* __VDSO32__ */
75
76#endif /* __ASSEMBLY__ */
77
78#endif /* __KERNEL__ */
79
80#endif /* __PPC64_VDSO_H__ */