Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_MODULE_H |
| 2 | #define _LINUX_MODULE_H |
| 3 | /* |
| 4 | * Dynamic loading of modules into the kernel. |
| 5 | * |
| 6 | * Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996 |
| 7 | * Rewritten again by Rusty Russell, 2002 |
| 8 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <linux/list.h> |
| 10 | #include <linux/stat.h> |
| 11 | #include <linux/compiler.h> |
| 12 | #include <linux/cache.h> |
| 13 | #include <linux/kmod.h> |
| 14 | #include <linux/elf.h> |
| 15 | #include <linux/stringify.h> |
| 16 | #include <linux/kobject.h> |
| 17 | #include <linux/moduleparam.h> |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 18 | #include <linux/tracepoint.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 20 | #include <linux/percpu.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <asm/module.h> |
| 22 | |
Li Zefan | 7ead8b8 | 2009-08-17 16:56:28 +0800 | [diff] [blame] | 23 | #include <trace/events/module.h> |
| 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | /* Not Yet Implemented */ |
| 26 | #define MODULE_SUPPORTED_DEVICE(name) |
| 27 | |
Alan Jenkins | 9e1b9b8 | 2009-11-07 21:03:54 +0000 | [diff] [blame] | 28 | /* Some toolchains use a `_' prefix for all user symbols. */ |
| 29 | #ifdef CONFIG_SYMBOL_PREFIX |
| 30 | #define MODULE_SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX |
| 31 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #define MODULE_SYMBOL_PREFIX "" |
| 33 | #endif |
| 34 | |
Rusty Russell | 730b69d | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 35 | #define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
| 37 | struct kernel_symbol |
| 38 | { |
| 39 | unsigned long value; |
| 40 | const char *name; |
| 41 | }; |
| 42 | |
| 43 | struct modversion_info |
| 44 | { |
| 45 | unsigned long crc; |
| 46 | char name[MODULE_NAME_LEN]; |
| 47 | }; |
| 48 | |
| 49 | struct module; |
| 50 | |
| 51 | struct module_attribute { |
| 52 | struct attribute attr; |
| 53 | ssize_t (*show)(struct module_attribute *, struct module *, char *); |
| 54 | ssize_t (*store)(struct module_attribute *, struct module *, |
| 55 | const char *, size_t count); |
Matt Domsch | c988d2b | 2005-06-23 22:05:15 -0700 | [diff] [blame] | 56 | void (*setup)(struct module *, const char *); |
| 57 | int (*test)(struct module *); |
| 58 | void (*free)(struct module *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | }; |
| 60 | |
| 61 | struct module_kobject |
| 62 | { |
| 63 | struct kobject kobj; |
| 64 | struct module *mod; |
Kay Sievers | f30c53a | 2007-01-15 20:22:02 +0100 | [diff] [blame] | 65 | struct kobject *drivers_dir; |
Rusty Russell | 9b473de | 2008-10-22 10:00:22 -0500 | [diff] [blame] | 66 | struct module_param_attrs *mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | }; |
| 68 | |
| 69 | /* These are either module local, or the kernel's dummy ones. */ |
| 70 | extern int init_module(void); |
| 71 | extern void cleanup_module(void); |
| 72 | |
| 73 | /* Archs provide a method of finding the correct exception table. */ |
| 74 | struct exception_table_entry; |
| 75 | |
| 76 | const struct exception_table_entry * |
| 77 | search_extable(const struct exception_table_entry *first, |
| 78 | const struct exception_table_entry *last, |
| 79 | unsigned long value); |
| 80 | void sort_extable(struct exception_table_entry *start, |
| 81 | struct exception_table_entry *finish); |
| 82 | void sort_main_extable(void); |
Rusty Russell | ad6561d | 2009-06-12 21:47:03 -0600 | [diff] [blame] | 83 | void trim_init_extable(struct module *m); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | #ifdef MODULE |
| 86 | #define MODULE_GENERIC_TABLE(gtype,name) \ |
| 87 | extern const struct gtype##_id __mod_##gtype##_table \ |
| 88 | __attribute__ ((unused, alias(__stringify(name)))) |
| 89 | |
| 90 | extern struct module __this_module; |
| 91 | #define THIS_MODULE (&__this_module) |
| 92 | #else /* !MODULE */ |
| 93 | #define MODULE_GENERIC_TABLE(gtype,name) |
| 94 | #define THIS_MODULE ((struct module *)0) |
| 95 | #endif |
| 96 | |
| 97 | /* Generic info of form tag = "info" */ |
| 98 | #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info) |
| 99 | |
| 100 | /* For userspace: you can also call me... */ |
| 101 | #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias) |
| 102 | |
| 103 | /* |
| 104 | * The following license idents are currently accepted as indicating free |
| 105 | * software modules |
| 106 | * |
| 107 | * "GPL" [GNU Public License v2 or later] |
| 108 | * "GPL v2" [GNU Public License v2] |
| 109 | * "GPL and additional rights" [GNU Public License v2 rights and more] |
| 110 | * "Dual BSD/GPL" [GNU Public License v2 |
| 111 | * or BSD license choice] |
Xose Vazquez Perez | 8d27e90 | 2006-06-23 02:05:13 -0700 | [diff] [blame] | 112 | * "Dual MIT/GPL" [GNU Public License v2 |
| 113 | * or MIT license choice] |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | * "Dual MPL/GPL" [GNU Public License v2 |
| 115 | * or Mozilla license choice] |
| 116 | * |
| 117 | * The following other idents are available |
| 118 | * |
| 119 | * "Proprietary" [Non free products] |
| 120 | * |
| 121 | * There are dual licensed components, but when running with Linux it is the |
| 122 | * GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL |
| 123 | * is a GPL combined work. |
| 124 | * |
| 125 | * This exists for several reasons |
| 126 | * 1. So modinfo can show license info for users wanting to vet their setup |
| 127 | * is free |
| 128 | * 2. So the community can ignore bug reports including proprietary modules |
| 129 | * 3. So vendors can do likewise based on their own policies |
| 130 | */ |
| 131 | #define MODULE_LICENSE(_license) MODULE_INFO(license, _license) |
| 132 | |
Johannes Berg | 1d7015c | 2009-09-25 00:32:58 -0600 | [diff] [blame] | 133 | /* |
| 134 | * Author(s), use "Name <email>" or just "Name", for multiple |
| 135 | * authors use multiple MODULE_AUTHOR() statements/lines. |
| 136 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author) |
| 138 | |
| 139 | /* What your module does. */ |
| 140 | #define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description) |
| 141 | |
| 142 | /* One for each parameter, describing how to use it. Some files do |
| 143 | multiple of these per line, so can't just use MODULE_INFO. */ |
| 144 | #define MODULE_PARM_DESC(_parm, desc) \ |
| 145 | __MODULE_INFO(parm, _parm, #_parm ":" desc) |
| 146 | |
| 147 | #define MODULE_DEVICE_TABLE(type,name) \ |
| 148 | MODULE_GENERIC_TABLE(type##_device,name) |
| 149 | |
| 150 | /* Version of form [<epoch>:]<version>[-<extra-version>]. |
| 151 | Or for CVS/RCS ID version, everything but the number is stripped. |
| 152 | <epoch>: A (small) unsigned integer which allows you to start versions |
| 153 | anew. If not mentioned, it's zero. eg. "2:1.0" is after |
| 154 | "1:2.0". |
| 155 | <version>: The <version> may contain only alphanumerics and the |
| 156 | character `.'. Ordered by numeric sort for numeric parts, |
| 157 | ascii sort for ascii parts (as per RPM or DEB algorithm). |
| 158 | <extraversion>: Like <version>, but inserted for local |
| 159 | customizations, eg "rh3" or "rusty1". |
| 160 | |
| 161 | Using this automatically adds a checksum of the .c files and the |
| 162 | local headers in "srcversion". |
| 163 | */ |
| 164 | #define MODULE_VERSION(_version) MODULE_INFO(version, _version) |
| 165 | |
Jon Masters | 187afbe | 2006-08-28 17:08:21 -0500 | [diff] [blame] | 166 | /* Optional firmware file (or files) needed by the module |
| 167 | * format is simply firmware file name. Multiple firmware |
| 168 | * files require multiple MODULE_FIRMWARE() specifiers */ |
| 169 | #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware) |
| 170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | /* Given an address, look for it in the exception tables */ |
| 172 | const struct exception_table_entry *search_exception_tables(unsigned long add); |
| 173 | |
| 174 | struct notifier_block; |
| 175 | |
| 176 | #ifdef CONFIG_MODULES |
| 177 | |
Dave Young | 5ed1091 | 2010-03-10 15:24:06 -0800 | [diff] [blame] | 178 | extern int modules_disabled; /* for sysctl */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | /* Get/put a kernel symbol (calls must be symmetric) */ |
| 180 | void *__symbol_get(const char *symbol); |
| 181 | void *__symbol_get_gpl(const char *symbol); |
| 182 | #define symbol_get(x) ((typeof(&x))(__symbol_get(MODULE_SYMBOL_PREFIX #x))) |
| 183 | |
Rusty Russell | c8e21ce | 2010-06-05 11:17:35 -0600 | [diff] [blame] | 184 | /* modules using other modules: kdb wants to see this. */ |
| 185 | struct module_use { |
| 186 | struct list_head source_list; |
| 187 | struct list_head target_list; |
| 188 | struct module *source, *target; |
| 189 | }; |
| 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | #ifndef __GENKSYMS__ |
| 192 | #ifdef CONFIG_MODVERSIONS |
| 193 | /* Mark the CRC weak since genksyms apparently decides not to |
| 194 | * generate a checksums for some symbols */ |
| 195 | #define __CRC_SYMBOL(sym, sec) \ |
| 196 | extern void *__crc_##sym __attribute__((weak)); \ |
| 197 | static const unsigned long __kcrctab_##sym \ |
Adrian Bunk | 3ff6eec | 2008-01-24 22:16:20 +0100 | [diff] [blame] | 198 | __used \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | __attribute__((section("__kcrctab" sec), unused)) \ |
| 200 | = (unsigned long) &__crc_##sym; |
| 201 | #else |
| 202 | #define __CRC_SYMBOL(sym, sec) |
| 203 | #endif |
| 204 | |
| 205 | /* For every exported symbol, place a struct in the __ksymtab section */ |
| 206 | #define __EXPORT_SYMBOL(sym, sec) \ |
Patrick McHardy | a1a8fee | 2006-03-23 22:07:34 -0800 | [diff] [blame] | 207 | extern typeof(sym) sym; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | __CRC_SYMBOL(sym, sec) \ |
| 209 | static const char __kstrtab_##sym[] \ |
Rusty Russell | ea01e79 | 2008-03-13 09:02:17 +0000 | [diff] [blame] | 210 | __attribute__((section("__ksymtab_strings"), aligned(1))) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | = MODULE_SYMBOL_PREFIX #sym; \ |
| 212 | static const struct kernel_symbol __ksymtab_##sym \ |
Adrian Bunk | 3ff6eec | 2008-01-24 22:16:20 +0100 | [diff] [blame] | 213 | __used \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | __attribute__((section("__ksymtab" sec), unused)) \ |
| 215 | = { (unsigned long)&sym, __kstrtab_##sym } |
| 216 | |
| 217 | #define EXPORT_SYMBOL(sym) \ |
| 218 | __EXPORT_SYMBOL(sym, "") |
| 219 | |
| 220 | #define EXPORT_SYMBOL_GPL(sym) \ |
| 221 | __EXPORT_SYMBOL(sym, "_gpl") |
| 222 | |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 223 | #define EXPORT_SYMBOL_GPL_FUTURE(sym) \ |
| 224 | __EXPORT_SYMBOL(sym, "_gpl_future") |
| 225 | |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 226 | |
| 227 | #ifdef CONFIG_UNUSED_SYMBOLS |
| 228 | #define EXPORT_UNUSED_SYMBOL(sym) __EXPORT_SYMBOL(sym, "_unused") |
| 229 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) __EXPORT_SYMBOL(sym, "_unused_gpl") |
| 230 | #else |
| 231 | #define EXPORT_UNUSED_SYMBOL(sym) |
| 232 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) |
| 233 | #endif |
| 234 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | #endif |
| 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | enum module_state |
| 238 | { |
| 239 | MODULE_STATE_LIVE, |
| 240 | MODULE_STATE_COMING, |
| 241 | MODULE_STATE_GOING, |
| 242 | }; |
| 243 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | struct module |
| 245 | { |
| 246 | enum module_state state; |
| 247 | |
| 248 | /* Member of list of modules */ |
| 249 | struct list_head list; |
| 250 | |
| 251 | /* Unique handle for this module */ |
| 252 | char name[MODULE_NAME_LEN]; |
| 253 | |
| 254 | /* Sysfs stuff. */ |
| 255 | struct module_kobject mkobj; |
Greg Kroah-Hartman | 03e88ae1 | 2006-02-16 13:50:23 -0800 | [diff] [blame] | 256 | struct module_attribute *modinfo_attrs; |
Matt Domsch | c988d2b | 2005-06-23 22:05:15 -0700 | [diff] [blame] | 257 | const char *version; |
| 258 | const char *srcversion; |
Kay Sievers | 270a6c4 | 2007-01-18 13:26:15 +0100 | [diff] [blame] | 259 | struct kobject *holders_dir; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | /* Exported symbols */ |
| 262 | const struct kernel_symbol *syms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | const unsigned long *crcs; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 264 | unsigned int num_syms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
Rusty Russell | e180a6b | 2009-03-31 13:05:29 -0600 | [diff] [blame] | 266 | /* Kernel parameters. */ |
| 267 | struct kernel_param *kp; |
| 268 | unsigned int num_kp; |
| 269 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | /* GPL-only exported symbols. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | unsigned int num_gpl_syms; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 272 | const struct kernel_symbol *gpl_syms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | const unsigned long *gpl_crcs; |
| 274 | |
Denys Vlasenko | f7f5b67 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 275 | #ifdef CONFIG_UNUSED_SYMBOLS |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 276 | /* unused exported symbols. */ |
| 277 | const struct kernel_symbol *unused_syms; |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 278 | const unsigned long *unused_crcs; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 279 | unsigned int num_unused_syms; |
| 280 | |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 281 | /* GPL-only, unused exported symbols. */ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 282 | unsigned int num_unused_gpl_syms; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 283 | const struct kernel_symbol *unused_gpl_syms; |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 284 | const unsigned long *unused_gpl_crcs; |
Denys Vlasenko | f7f5b67 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 285 | #endif |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 286 | |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 287 | /* symbols that will be GPL-only in the near future. */ |
| 288 | const struct kernel_symbol *gpl_future_syms; |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 289 | const unsigned long *gpl_future_crcs; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 290 | unsigned int num_gpl_future_syms; |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 291 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | /* Exception table */ |
| 293 | unsigned int num_exentries; |
Rusty Russell | 5e458cc | 2008-10-22 10:00:13 -0500 | [diff] [blame] | 294 | struct exception_table_entry *extable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
| 296 | /* Startup function. */ |
| 297 | int (*init)(void); |
| 298 | |
| 299 | /* If this is non-NULL, vfree after init() returns */ |
| 300 | void *module_init; |
| 301 | |
| 302 | /* Here is the actual code + data, vfree'd on unload. */ |
| 303 | void *module_core; |
| 304 | |
| 305 | /* Here are the sizes of the init and core sections */ |
Denys Vlasenko | 2f0f2a3 | 2008-07-22 19:24:27 -0500 | [diff] [blame] | 306 | unsigned int init_size, core_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | |
| 308 | /* The size of the executable code in each section. */ |
Denys Vlasenko | 2f0f2a3 | 2008-07-22 19:24:27 -0500 | [diff] [blame] | 309 | unsigned int init_text_size, core_text_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
matthieu castet | 84e1c6b | 2010-11-16 22:35:16 +0100 | [diff] [blame] | 311 | /* Size of RO sections of the module (text+rodata) */ |
| 312 | unsigned int init_ro_size, core_ro_size; |
| 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | /* Arch-specific module values */ |
| 315 | struct mod_arch_specific arch; |
| 316 | |
Randy Dunlap | 2bc2d61 | 2006-10-02 02:17:02 -0700 | [diff] [blame] | 317 | unsigned int taints; /* same bits as kernel:tainted */ |
| 318 | |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 319 | #ifdef CONFIG_GENERIC_BUG |
| 320 | /* Support for BUG */ |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 321 | unsigned num_bugs; |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 322 | struct list_head bug_list; |
| 323 | struct bug_entry *bug_table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | #endif |
| 325 | |
| 326 | #ifdef CONFIG_KALLSYMS |
Jan Beulich | 4a49622 | 2009-07-06 14:50:42 +0100 | [diff] [blame] | 327 | /* |
| 328 | * We keep the symbol and string tables for kallsyms. |
| 329 | * The core_* fields below are temporary, loader-only (they |
| 330 | * could really be discarded after module init). |
| 331 | */ |
| 332 | Elf_Sym *symtab, *core_symtab; |
| 333 | unsigned int num_symtab, core_num_syms; |
Jan Beulich | 554bdfe | 2009-07-06 14:51:44 +0100 | [diff] [blame] | 334 | char *strtab, *core_strtab; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
| 336 | /* Section attributes */ |
| 337 | struct module_sect_attrs *sect_attrs; |
Roland McGrath | 6d76013 | 2007-10-16 23:26:40 -0700 | [diff] [blame] | 338 | |
| 339 | /* Notes attributes */ |
| 340 | struct module_notes_attrs *notes_attrs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | #endif |
| 342 | |
Tejun Heo | 259354d | 2010-03-10 18:56:10 +0900 | [diff] [blame] | 343 | #ifdef CONFIG_SMP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | /* Per-cpu data. */ |
Tejun Heo | 259354d | 2010-03-10 18:56:10 +0900 | [diff] [blame] | 345 | void __percpu *percpu; |
| 346 | unsigned int percpu_size; |
| 347 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | |
| 349 | /* The command line arguments (may be mangled). People like |
| 350 | keeping pointers to this stuff */ |
| 351 | char *args; |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 352 | #ifdef CONFIG_TRACEPOINTS |
| 353 | struct tracepoint *tracepoints; |
| 354 | unsigned int num_tracepoints; |
| 355 | #endif |
Jason Baron | bf5438fc | 2010-09-17 11:09:00 -0400 | [diff] [blame] | 356 | #ifdef HAVE_JUMP_LABEL |
| 357 | struct jump_entry *jump_entries; |
| 358 | unsigned int num_jump_entries; |
| 359 | #endif |
Frederic Weisbecker | 769b044 | 2009-03-06 17:21:49 +0100 | [diff] [blame] | 360 | #ifdef CONFIG_TRACING |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 361 | const char **trace_bprintk_fmt_start; |
| 362 | unsigned int num_trace_bprintk_fmt; |
| 363 | #endif |
Steven Rostedt | 6d72373 | 2009-04-10 14:53:50 -0400 | [diff] [blame] | 364 | #ifdef CONFIG_EVENT_TRACING |
| 365 | struct ftrace_event_call *trace_events; |
| 366 | unsigned int num_trace_events; |
| 367 | #endif |
Steven Rostedt | 93eb677 | 2009-04-15 13:24:06 -0400 | [diff] [blame] | 368 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
| 369 | unsigned long *ftrace_callsites; |
| 370 | unsigned int num_ftrace_callsites; |
| 371 | #endif |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 372 | |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 373 | #ifdef CONFIG_MODULE_UNLOAD |
| 374 | /* What modules depend on me? */ |
Linus Torvalds | 2c02dfe | 2010-05-31 12:19:37 -0700 | [diff] [blame] | 375 | struct list_head source_list; |
| 376 | /* What modules do I depend on? */ |
| 377 | struct list_head target_list; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 378 | |
| 379 | /* Who is waiting for us to be unloaded */ |
| 380 | struct task_struct *waiter; |
| 381 | |
| 382 | /* Destruction function. */ |
| 383 | void (*exit)(void); |
| 384 | |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 385 | struct module_ref { |
Nick Piggin | 5fbfb18 | 2010-04-01 19:09:40 +1100 | [diff] [blame] | 386 | unsigned int incs; |
| 387 | unsigned int decs; |
Tejun Heo | 43cf38e | 2010-02-02 14:38:57 +0900 | [diff] [blame] | 388 | } __percpu *refptr; |
Richard Kennedy | af54068 | 2008-07-22 19:24:26 -0500 | [diff] [blame] | 389 | #endif |
Peter Oberparleiter | b99b87f | 2009-06-17 16:28:03 -0700 | [diff] [blame] | 390 | |
| 391 | #ifdef CONFIG_CONSTRUCTORS |
| 392 | /* Constructor functions. */ |
| 393 | ctor_fn_t *ctors; |
| 394 | unsigned int num_ctors; |
| 395 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | }; |
Roman Zippel | e61a1c1 | 2007-05-09 02:35:15 -0700 | [diff] [blame] | 397 | #ifndef MODULE_ARCH_INIT |
| 398 | #define MODULE_ARCH_INIT {} |
| 399 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
Tim Abbott | c6b3780 | 2008-12-05 19:03:59 -0500 | [diff] [blame] | 401 | extern struct mutex module_mutex; |
| 402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | /* FIXME: It'd be nice to isolate modules during init, too, so they |
| 404 | aren't used before they (may) fail. But presently too much code |
| 405 | (IDE & SCSI) require entry into the module during init.*/ |
| 406 | static inline int module_is_live(struct module *mod) |
| 407 | { |
| 408 | return mod->state != MODULE_STATE_GOING; |
| 409 | } |
| 410 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | struct module *__module_text_address(unsigned long addr); |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 412 | struct module *__module_address(unsigned long addr); |
| 413 | bool is_module_address(unsigned long addr); |
Tejun Heo | 10fad5e | 2010-03-10 18:57:54 +0900 | [diff] [blame] | 414 | bool is_module_percpu_address(unsigned long addr); |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 415 | bool is_module_text_address(unsigned long addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
Masami Hiramatsu | a06f621 | 2009-01-06 14:41:49 -0800 | [diff] [blame] | 417 | static inline int within_module_core(unsigned long addr, struct module *mod) |
| 418 | { |
| 419 | return (unsigned long)mod->module_core <= addr && |
| 420 | addr < (unsigned long)mod->module_core + mod->core_size; |
| 421 | } |
| 422 | |
| 423 | static inline int within_module_init(unsigned long addr, struct module *mod) |
| 424 | { |
| 425 | return (unsigned long)mod->module_init <= addr && |
| 426 | addr < (unsigned long)mod->module_init + mod->init_size; |
| 427 | } |
| 428 | |
Tim Abbott | c6b3780 | 2008-12-05 19:03:59 -0500 | [diff] [blame] | 429 | /* Search for module by name: must hold module_mutex. */ |
| 430 | struct module *find_module(const char *name); |
| 431 | |
| 432 | struct symsearch { |
| 433 | const struct kernel_symbol *start, *stop; |
| 434 | const unsigned long *crcs; |
| 435 | enum { |
| 436 | NOT_GPL_ONLY, |
| 437 | GPL_ONLY, |
| 438 | WILL_BE_GPL_ONLY, |
| 439 | } licence; |
| 440 | bool unused; |
| 441 | }; |
| 442 | |
| 443 | /* Search for an exported symbol by name. */ |
| 444 | const struct kernel_symbol *find_symbol(const char *name, |
| 445 | struct module **owner, |
| 446 | const unsigned long **crc, |
| 447 | bool gplok, |
| 448 | bool warn); |
| 449 | |
| 450 | /* Walk the exported symbol table */ |
| 451 | bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, |
| 452 | unsigned int symnum, void *data), void *data); |
| 453 | |
Alexey Dobriyan | ea07890 | 2007-05-08 00:28:39 -0700 | [diff] [blame] | 454 | /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | symnum out of range. */ |
Alexey Dobriyan | ea07890 | 2007-05-08 00:28:39 -0700 | [diff] [blame] | 456 | int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type, |
| 457 | char *name, char *module_name, int *exported); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
| 459 | /* Look for this name: can be of form module:name. */ |
| 460 | unsigned long module_kallsyms_lookup_name(const char *name); |
| 461 | |
Anders Kaseorg | 75a6661 | 2008-12-05 19:03:58 -0500 | [diff] [blame] | 462 | int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, |
| 463 | struct module *, unsigned long), |
| 464 | void *data); |
| 465 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | extern void __module_put_and_exit(struct module *mod, long code) |
| 467 | __attribute__((noreturn)); |
| 468 | #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code); |
| 469 | |
| 470 | #ifdef CONFIG_MODULE_UNLOAD |
| 471 | unsigned int module_refcount(struct module *mod); |
| 472 | void __symbol_put(const char *symbol); |
| 473 | #define symbol_put(x) __symbol_put(MODULE_SYMBOL_PREFIX #x) |
| 474 | void symbol_put_addr(void *addr); |
| 475 | |
| 476 | /* Sometimes we know we already have a refcount, and it's easier not |
| 477 | to handle the error case (which only happens with rmmod --wait). */ |
| 478 | static inline void __module_get(struct module *module) |
| 479 | { |
| 480 | if (module) { |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 481 | preempt_disable(); |
Nick Piggin | 5fbfb18 | 2010-04-01 19:09:40 +1100 | [diff] [blame] | 482 | __this_cpu_inc(module->refptr->incs); |
Li Zefan | ae832d1 | 2010-03-24 10:57:43 +0800 | [diff] [blame] | 483 | trace_module_get(module, _THIS_IP_); |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 484 | preempt_enable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | } |
| 486 | } |
| 487 | |
| 488 | static inline int try_module_get(struct module *module) |
| 489 | { |
| 490 | int ret = 1; |
| 491 | |
| 492 | if (module) { |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 493 | preempt_disable(); |
| 494 | |
Li Zefan | 7ead8b8 | 2009-08-17 16:56:28 +0800 | [diff] [blame] | 495 | if (likely(module_is_live(module))) { |
Nick Piggin | 5fbfb18 | 2010-04-01 19:09:40 +1100 | [diff] [blame] | 496 | __this_cpu_inc(module->refptr->incs); |
Li Zefan | ae832d1 | 2010-03-24 10:57:43 +0800 | [diff] [blame] | 497 | trace_module_get(module, _THIS_IP_); |
Nick Piggin | 5fbfb18 | 2010-04-01 19:09:40 +1100 | [diff] [blame] | 498 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | ret = 0; |
Christoph Lameter | e1783a2 | 2010-01-05 15:34:50 +0900 | [diff] [blame] | 500 | |
| 501 | preempt_enable(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | } |
| 503 | return ret; |
| 504 | } |
| 505 | |
Al Viro | f6a5703 | 2006-10-18 01:47:25 -0400 | [diff] [blame] | 506 | extern void module_put(struct module *module); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | |
| 508 | #else /*!CONFIG_MODULE_UNLOAD*/ |
| 509 | static inline int try_module_get(struct module *module) |
| 510 | { |
| 511 | return !module || module_is_live(module); |
| 512 | } |
| 513 | static inline void module_put(struct module *module) |
| 514 | { |
| 515 | } |
| 516 | static inline void __module_get(struct module *module) |
| 517 | { |
| 518 | } |
| 519 | #define symbol_put(x) do { } while(0) |
| 520 | #define symbol_put_addr(p) do { } while(0) |
| 521 | |
| 522 | #endif /* CONFIG_MODULE_UNLOAD */ |
Anders Kaseorg | dfd62d1 | 2010-11-24 15:21:10 -0600 | [diff] [blame] | 523 | int ref_module(struct module *a, struct module *b); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
| 525 | /* This is a #define so the string doesn't get put in every .o file */ |
| 526 | #define module_name(mod) \ |
| 527 | ({ \ |
| 528 | struct module *__mod = (mod); \ |
| 529 | __mod ? __mod->name : "kernel"; \ |
| 530 | }) |
| 531 | |
Rusty Russell | 6dd06c9 | 2008-01-29 17:13:22 -0500 | [diff] [blame] | 532 | /* For kallsyms to ask for address resolution. namebuf should be at |
| 533 | * least KSYM_NAME_LEN long: a pointer to namebuf is returned if |
| 534 | * found, otherwise NULL. */ |
Andrew Morton | 92dfc9d | 2008-02-08 04:18:43 -0800 | [diff] [blame] | 535 | const char *module_address_lookup(unsigned long addr, |
Rusty Russell | 6dd06c9 | 2008-01-29 17:13:22 -0500 | [diff] [blame] | 536 | unsigned long *symbolsize, |
| 537 | unsigned long *offset, |
| 538 | char **modname, |
| 539 | char *namebuf); |
Alexey Dobriyan | 9d65cb4 | 2007-05-08 00:28:43 -0700 | [diff] [blame] | 540 | int lookup_module_symbol_name(unsigned long addr, char *symname); |
Alexey Dobriyan | a5c43da | 2007-05-08 00:28:47 -0700 | [diff] [blame] | 541 | int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | |
| 543 | /* For extable.c to search modules' exception tables. */ |
| 544 | const struct exception_table_entry *search_module_extables(unsigned long addr); |
| 545 | |
| 546 | int register_module_notifier(struct notifier_block * nb); |
| 547 | int unregister_module_notifier(struct notifier_block * nb); |
| 548 | |
| 549 | extern void print_modules(void); |
| 550 | |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 551 | extern void module_update_tracepoints(void); |
| 552 | extern int module_get_iter_tracepoints(struct tracepoint_iter *iter); |
| 553 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | #else /* !CONFIG_MODULES... */ |
| 555 | #define EXPORT_SYMBOL(sym) |
| 556 | #define EXPORT_SYMBOL_GPL(sym) |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 557 | #define EXPORT_SYMBOL_GPL_FUTURE(sym) |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 558 | #define EXPORT_UNUSED_SYMBOL(sym) |
| 559 | #define EXPORT_UNUSED_SYMBOL_GPL(sym) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | |
| 561 | /* Given an address, look for it in the exception tables. */ |
| 562 | static inline const struct exception_table_entry * |
| 563 | search_module_extables(unsigned long addr) |
| 564 | { |
| 565 | return NULL; |
| 566 | } |
| 567 | |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 568 | static inline struct module *__module_address(unsigned long addr) |
| 569 | { |
| 570 | return NULL; |
| 571 | } |
| 572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | static inline struct module *__module_text_address(unsigned long addr) |
| 574 | { |
| 575 | return NULL; |
| 576 | } |
| 577 | |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 578 | static inline bool is_module_address(unsigned long addr) |
Ingo Molnar | 4d435f9 | 2006-07-03 00:24:24 -0700 | [diff] [blame] | 579 | { |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 580 | return false; |
| 581 | } |
| 582 | |
Randy Dunlap | d5e50da | 2010-03-31 11:33:42 +0900 | [diff] [blame] | 583 | static inline bool is_module_percpu_address(unsigned long addr) |
| 584 | { |
| 585 | return false; |
| 586 | } |
| 587 | |
Rusty Russell | e610499 | 2009-03-31 13:05:31 -0600 | [diff] [blame] | 588 | static inline bool is_module_text_address(unsigned long addr) |
| 589 | { |
| 590 | return false; |
Ingo Molnar | 4d435f9 | 2006-07-03 00:24:24 -0700 | [diff] [blame] | 591 | } |
| 592 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | /* Get/put a kernel symbol (calls should be symmetric) */ |
| 594 | #define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); }) |
| 595 | #define symbol_put(x) do { } while(0) |
| 596 | #define symbol_put_addr(x) do { } while(0) |
| 597 | |
| 598 | static inline void __module_get(struct module *module) |
| 599 | { |
| 600 | } |
| 601 | |
| 602 | static inline int try_module_get(struct module *module) |
| 603 | { |
| 604 | return 1; |
| 605 | } |
| 606 | |
| 607 | static inline void module_put(struct module *module) |
| 608 | { |
| 609 | } |
| 610 | |
| 611 | #define module_name(mod) "kernel" |
| 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | /* For kallsyms to ask for address resolution. NULL means not found. */ |
Andrew Morton | 92dfc9d | 2008-02-08 04:18:43 -0800 | [diff] [blame] | 614 | static inline const char *module_address_lookup(unsigned long addr, |
Rusty Russell | 6dd06c9 | 2008-01-29 17:13:22 -0500 | [diff] [blame] | 615 | unsigned long *symbolsize, |
| 616 | unsigned long *offset, |
| 617 | char **modname, |
| 618 | char *namebuf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | { |
| 620 | return NULL; |
| 621 | } |
| 622 | |
Alexey Dobriyan | 9d65cb4 | 2007-05-08 00:28:43 -0700 | [diff] [blame] | 623 | static inline int lookup_module_symbol_name(unsigned long addr, char *symname) |
| 624 | { |
| 625 | return -ERANGE; |
| 626 | } |
| 627 | |
Alexey Dobriyan | a5c43da | 2007-05-08 00:28:47 -0700 | [diff] [blame] | 628 | static inline int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name) |
| 629 | { |
| 630 | return -ERANGE; |
| 631 | } |
| 632 | |
Alexey Dobriyan | ea07890 | 2007-05-08 00:28:39 -0700 | [diff] [blame] | 633 | static inline int module_get_kallsym(unsigned int symnum, unsigned long *value, |
| 634 | char *type, char *name, |
| 635 | char *module_name, int *exported) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | { |
Alexey Dobriyan | ea07890 | 2007-05-08 00:28:39 -0700 | [diff] [blame] | 637 | return -ERANGE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | } |
| 639 | |
| 640 | static inline unsigned long module_kallsyms_lookup_name(const char *name) |
| 641 | { |
| 642 | return 0; |
| 643 | } |
| 644 | |
Anders Kaseorg | 75a6661 | 2008-12-05 19:03:58 -0500 | [diff] [blame] | 645 | static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, |
| 646 | struct module *, |
| 647 | unsigned long), |
| 648 | void *data) |
| 649 | { |
| 650 | return 0; |
| 651 | } |
| 652 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | static inline int register_module_notifier(struct notifier_block * nb) |
| 654 | { |
| 655 | /* no events will happen anyway, so this can always succeed */ |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | static inline int unregister_module_notifier(struct notifier_block * nb) |
| 660 | { |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | #define module_put_and_exit(code) do_exit(code) |
| 665 | |
| 666 | static inline void print_modules(void) |
| 667 | { |
| 668 | } |
| 669 | |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 670 | static inline void module_update_tracepoints(void) |
| 671 | { |
| 672 | } |
| 673 | |
| 674 | static inline int module_get_iter_tracepoints(struct tracepoint_iter *iter) |
| 675 | { |
| 676 | return 0; |
| 677 | } |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 678 | #endif /* CONFIG_MODULES */ |
| 679 | |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 680 | #ifdef CONFIG_SYSFS |
Greg Kroah-Hartman | 7405c1e | 2007-11-01 10:39:50 -0700 | [diff] [blame] | 681 | extern struct kset *module_kset; |
| 682 | extern struct kobj_type module_ktype; |
| 683 | extern int module_sysfs_initialized; |
Randy Dunlap | ef665c1 | 2007-02-13 15:19:06 -0800 | [diff] [blame] | 684 | #endif /* CONFIG_SYSFS */ |
| 685 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | #define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x) |
| 687 | |
| 688 | /* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */ |
| 689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | #define __MODULE_STRING(x) __stringify(x) |
| 691 | |
matthieu castet | 84e1c6b | 2010-11-16 22:35:16 +0100 | [diff] [blame] | 692 | #ifdef CONFIG_DEBUG_SET_MODULE_RONX |
| 693 | extern void set_all_modules_text_rw(void); |
| 694 | extern void set_all_modules_text_ro(void); |
| 695 | #else |
| 696 | static inline void set_all_modules_text_rw(void) { } |
| 697 | static inline void set_all_modules_text_ro(void) { } |
| 698 | #endif |
Andrew Morton | 0d9c25d | 2009-06-16 15:33:37 -0700 | [diff] [blame] | 699 | |
| 700 | #ifdef CONFIG_GENERIC_BUG |
Linus Torvalds | 5336377 | 2010-10-05 11:29:27 -0700 | [diff] [blame] | 701 | void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *, |
Andrew Morton | 0d9c25d | 2009-06-16 15:33:37 -0700 | [diff] [blame] | 702 | struct module *); |
| 703 | void module_bug_cleanup(struct module *); |
| 704 | |
| 705 | #else /* !CONFIG_GENERIC_BUG */ |
| 706 | |
Linus Torvalds | 5336377 | 2010-10-05 11:29:27 -0700 | [diff] [blame] | 707 | static inline void module_bug_finalize(const Elf_Ehdr *hdr, |
Andrew Morton | 0d9c25d | 2009-06-16 15:33:37 -0700 | [diff] [blame] | 708 | const Elf_Shdr *sechdrs, |
| 709 | struct module *mod) |
| 710 | { |
Andrew Morton | 0d9c25d | 2009-06-16 15:33:37 -0700 | [diff] [blame] | 711 | } |
| 712 | static inline void module_bug_cleanup(struct module *mod) {} |
| 713 | #endif /* CONFIG_GENERIC_BUG */ |
| 714 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | #endif /* _LINUX_MODULE_H */ |