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authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 01:20:30 -0400
committerPaul Mackerras <paulus@samba.org>2008-08-03 22:02:00 -0400
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /arch/powerpc/include/asm/module.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/module.h')
-rw-r--r--arch/powerpc/include/asm/module.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
new file mode 100644
index 000000000000..e5f14b13ccf0
--- /dev/null
+++ b/arch/powerpc/include/asm/module.h
@@ -0,0 +1,77 @@
1#ifndef _ASM_POWERPC_MODULE_H
2#define _ASM_POWERPC_MODULE_H
3#ifdef __KERNEL__
4
5/*
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/list.h>
13#include <asm/bug.h>
14
15
16#ifndef __powerpc64__
17/*
18 * Thanks to Paul M for explaining this.
19 *
20 * PPC can only do rel jumps += 32MB, and often the kernel and other
21 * modules are furthur away than this. So, we jump to a table of
22 * trampolines attached to the module (the Procedure Linkage Table)
23 * whenever that happens.
24 */
25
26struct ppc_plt_entry {
27 /* 16 byte jump instruction sequence (4 instructions) */
28 unsigned int jump[4];
29};
30#endif /* __powerpc64__ */
31
32
33struct mod_arch_specific {
34#ifdef __powerpc64__
35 unsigned int stubs_section; /* Index of stubs section in module */
36 unsigned int toc_section; /* What section is the TOC? */
37#else
38 /* Indices of PLT sections within module. */
39 unsigned int core_plt_section;
40 unsigned int init_plt_section;
41#endif
42
43 /* List of BUG addresses, source line numbers and filenames */
44 struct list_head bug_list;
45 struct bug_entry *bug_table;
46 unsigned int num_bugs;
47};
48
49/*
50 * Select ELF headers.
51 * Make empty section for module_frob_arch_sections to expand.
52 */
53
54#ifdef __powerpc64__
55# define Elf_Shdr Elf64_Shdr
56# define Elf_Sym Elf64_Sym
57# define Elf_Ehdr Elf64_Ehdr
58# ifdef MODULE
59 asm(".section .stubs,\"ax\",@nobits; .align 3; .previous");
60# endif
61#else
62# define Elf_Shdr Elf32_Shdr
63# define Elf_Sym Elf32_Sym
64# define Elf_Ehdr Elf32_Ehdr
65# ifdef MODULE
66 asm(".section .plt,\"ax\",@nobits; .align 3; .previous");
67 asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous");
68# endif /* MODULE */
69#endif
70
71
72struct exception_table_entry;
73void sort_ex_table(struct exception_table_entry *start,
74 struct exception_table_entry *finish);
75
76#endif /* __KERNEL__ */
77#endif /* _ASM_POWERPC_MODULE_H */