projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a37c8875 | 1 | #ifndef _ASM_POWERPC_MODULE_H |
| 2 | #define _ASM_POWERPC_MODULE_H | |
| 88ced031 | 3 | #ifdef __KERNEL__ |
| 6b9269ab JL |
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> | |
| 786d35d4 | 14 | #include <asm-generic/module.h> |
| 6b9269ab JL |
15 | |
| 16 | ||
| 17 | #ifndef __powerpc64__ | |
| 18 | /* | |
| 19 | * Thanks to Paul M for explaining this. | |
| 20 | * | |
| 21 | * PPC can only do rel jumps += 32MB, and often the kernel and other | |
| 446957ba | 22 | * modules are further away than this. So, we jump to a table of |
| 6b9269ab JL |
23 | * trampolines attached to the module (the Procedure Linkage Table) |
| 24 | * whenever that happens. | |
| 25 | */ | |
| 26 | ||
| 27 | struct ppc_plt_entry { | |
| 28 | /* 16 byte jump instruction sequence (4 instructions) */ | |
| 29 | unsigned int jump[4]; | |
| 30 | }; | |
| 31 | #endif /* __powerpc64__ */ | |
| 32 | ||
| 33 | ||
| 34 | struct mod_arch_specific { | |
| 35 | #ifdef __powerpc64__ | |
| 36 | unsigned int stubs_section; /* Index of stubs section in module */ | |
| 37 | unsigned int toc_section; /* What section is the TOC? */ | |
| 4edebbea | 38 | bool toc_fixed; /* Have we fixed up .TOC.? */ |
| f48cb8b4 SR |
39 | #ifdef CONFIG_DYNAMIC_FTRACE |
| 40 | unsigned long toc; | |
| 41 | unsigned long tramp; | |
| 42 | #endif | |
| 43 | ||
| 7cc45e64 | 44 | #else /* powerpc64 */ |
| 6b9269ab JL |
45 | /* Indices of PLT sections within module. */ |
| 46 | unsigned int core_plt_section; | |
| 47 | unsigned int init_plt_section; | |
| 7cc45e64 SR |
48 | #ifdef CONFIG_DYNAMIC_FTRACE |
| 49 | unsigned long tramp; | |
| 6b9269ab | 50 | #endif |
| 7cc45e64 | 51 | #endif /* powerpc64 */ |
| 6b9269ab JL |
52 | |
| 53 | /* List of BUG addresses, source line numbers and filenames */ | |
| 54 | struct list_head bug_list; | |
| 55 | struct bug_entry *bug_table; | |
| 56 | unsigned int num_bugs; | |
| 57 | }; | |
| 58 | ||
| 6b9269ab JL |
59 | /* |
| 60 | * Select ELF headers. | |
| 61 | * Make empty section for module_frob_arch_sections to expand. | |
| 62 | */ | |
| 63 | ||
| 64 | #ifdef __powerpc64__ | |
| 6b9269ab JL |
65 | # ifdef MODULE |
| 66 | asm(".section .stubs,\"ax\",@nobits; .align 3; .previous"); | |
| 67 | # endif | |
| 68 | #else | |
| 6b9269ab JL |
69 | # ifdef MODULE |
| 70 | asm(".section .plt,\"ax\",@nobits; .align 3; .previous"); | |
| 71 | asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous"); | |
| 72 | # endif /* MODULE */ | |
| 73 | #endif | |
| 74 | ||
| f48cb8b4 SR |
75 | #ifdef CONFIG_DYNAMIC_FTRACE |
| 76 | # ifdef MODULE | |
| 77 | asm(".section .ftrace.tramp,\"ax\",@nobits; .align 3; .previous"); | |
| 78 | # endif /* MODULE */ | |
| 79 | #endif | |
| 80 | ||
| 83775b85 | 81 | bool is_module_trampoline(u32 *insns); |
| dd9fa162 AB |
82 | int module_trampoline_target(struct module *mod, u32 *trampoline, |
| 83 | unsigned long *target); | |
| 6b9269ab JL |
84 | |
| 85 | struct exception_table_entry; | |
| 86 | void sort_ex_table(struct exception_table_entry *start, | |
| 87 | struct exception_table_entry *finish); | |
| 88 | ||
| 0e0ed640 | 89 | #if defined(CONFIG_MODVERSIONS) && defined(CONFIG_PPC64) |
| d4703aef | 90 | #define ARCH_RELOCATES_KCRCTAB |
| 0e0ed640 | 91 | #define reloc_start PHYSICAL_START |
| d4703aef | 92 | #endif |
| 88ced031 | 93 | #endif /* __KERNEL__ */ |
| a37c8875 | 94 | #endif /* _ASM_POWERPC_MODULE_H */ |