* Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996
* Rewritten again by Rusty Russell, 2002
*/
-#include <linux/config.h>
-#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/stat.h>
#include <linux/kmod.h>
#include <linux/elf.h>
#include <linux/stringify.h>
+#include <linux/kobject.h>
+#include <linux/moduleparam.h>
#include <asm/local.h>
#include <asm/module.h>
/* Not Yet Implemented */
#define MODULE_SUPPORTED_DEVICE(name)
-#define print_modules()
/* v850 toolchain uses a `_' prefix for all user symbols */
#ifndef MODULE_SYMBOL_PREFIX
char name[MODULE_NAME_LEN];
};
+struct module;
+
+struct module_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct module_attribute *, struct module *, char *);
+ ssize_t (*store)(struct module_attribute *, struct module *,
+ const char *, size_t count);
+ void (*setup)(struct module *, const char *);
+ int (*test)(struct module *);
+ void (*free)(struct module *);
+};
+
+struct module_kobject
+{
+ struct kobject kobj;
+ struct module *mod;
+};
+
/* These are either module local, or the kernel's dummy ones. */
extern int init_module(void);
extern void cleanup_module(void);
struct exception_table_entry *finish);
void sort_main_extable(void);
-#ifdef MODULE
-#define ___module_cat(a,b) __mod_ ## a ## b
-#define __module_cat(a,b) ___module_cat(a,b)
-#define __MODULE_INFO(tag, name, info) \
-static const char __module_cat(name,__LINE__)[] \
- __attribute_used__ \
- __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
+extern struct subsystem module_subsys;
+#ifdef MODULE
#define MODULE_GENERIC_TABLE(gtype,name) \
extern const struct gtype##_id __mod_##gtype##_table \
__attribute__ ((unused, alias(__stringify(name))))
extern struct module __this_module;
#define THIS_MODULE (&__this_module)
-
#else /* !MODULE */
-
#define MODULE_GENERIC_TABLE(gtype,name)
-#define __MODULE_INFO(tag, name, info)
#define THIS_MODULE ((struct module *)0)
#endif
* "GPL and additional rights" [GNU Public License v2 rights and more]
* "Dual BSD/GPL" [GNU Public License v2
* or BSD license choice]
+ * "Dual MIT/GPL" [GNU Public License v2
+ * or MIT license choice]
* "Dual MPL/GPL" [GNU Public License v2
* or Mozilla license choice]
*
customizations, eg "rh3" or "rusty1".
Using this automatically adds a checksum of the .c files and the
- local headers to the end. Use MODULE_VERSION("") if you want just
- this. Macro includes room for this.
+ local headers in "srcversion".
*/
-#define MODULE_VERSION(_version) \
- MODULE_INFO(version, _version "\0xxxxxxxxxxxxxxxxxxxxxxxx")
+#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
+
+/* Optional firmware file (or files) needed by the module
+ * format is simply firmware file name. Multiple firmware
+ * files require multiple MODULE_FIRMWARE() specifiers */
+#define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
/* Given an address, look for it in the exception tables */
const struct exception_table_entry *search_exception_tables(unsigned long add);
/* For every exported symbol, place a struct in the __ksymtab section */
#define __EXPORT_SYMBOL(sym, sec) \
+ extern typeof(sym) sym; \
__CRC_SYMBOL(sym, sec) \
static const char __kstrtab_##sym[] \
__attribute__((section("__ksymtab_strings"))) \
#define EXPORT_SYMBOL_GPL(sym) \
__EXPORT_SYMBOL(sym, "_gpl")
+#define EXPORT_SYMBOL_GPL_FUTURE(sym) \
+ __EXPORT_SYMBOL(sym, "_gpl_future")
+
+
+#ifdef CONFIG_UNUSED_SYMBOLS
+#define EXPORT_UNUSED_SYMBOL(sym) __EXPORT_SYMBOL(sym, "_unused")
+#define EXPORT_UNUSED_SYMBOL_GPL(sym) __EXPORT_SYMBOL(sym, "_unused_gpl")
+#else
+#define EXPORT_UNUSED_SYMBOL(sym)
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)
#endif
-/* We don't mangle the actual symbol anymore, so no need for
- * special casing EXPORT_SYMBOL_NOVERS. FIXME: Deprecated */
-#define EXPORT_SYMBOL_NOVERS(sym) EXPORT_SYMBOL(sym)
+#endif
struct module_ref
{
MODULE_STATE_GOING,
};
+/* Similar stuff for section attributes. */
+struct module_sect_attr
+{
+ struct module_attribute mattr;
+ char *name;
+ unsigned long address;
+};
+
+struct module_sect_attrs
+{
+ struct attribute_group grp;
+ int nsections;
+ struct module_sect_attr attrs[0];
+};
+
+struct module_param_attrs;
+
struct module
{
enum module_state state;
/* Unique handle for this module */
char name[MODULE_NAME_LEN];
+ /* Sysfs stuff. */
+ struct module_kobject mkobj;
+ struct module_param_attrs *param_attrs;
+ struct module_attribute *modinfo_attrs;
+ const char *version;
+ const char *srcversion;
+ struct kobject *drivers_dir;
+
/* Exported symbols */
const struct kernel_symbol *syms;
unsigned int num_syms;
unsigned int num_gpl_syms;
const unsigned long *gpl_crcs;
+ /* unused exported symbols. */
+ const struct kernel_symbol *unused_syms;
+ unsigned int num_unused_syms;
+ const unsigned long *unused_crcs;
+ /* GPL-only, unused exported symbols. */
+ const struct kernel_symbol *unused_gpl_syms;
+ unsigned int num_unused_gpl_syms;
+ const unsigned long *unused_gpl_crcs;
+
+ /* symbols that will be GPL-only in the near future. */
+ const struct kernel_symbol *gpl_future_syms;
+ unsigned int num_gpl_future_syms;
+ const unsigned long *gpl_future_crcs;
+
/* Exception table */
unsigned int num_exentries;
const struct exception_table_entry *extable;
/* The size of the executable code in each section. */
unsigned long init_text_size, core_text_size;
+ /* The handle returned from unwind_add_table. */
+ void *unwind_info;
+
/* Arch-specific module values */
struct mod_arch_specific arch;
/* Am I unsafe to unload? */
int unsafe;
- /* Am I GPL-compatible */
- int license_gplok;
+ unsigned int taints; /* same bits as kernel:tainted */
+
+#ifdef CONFIG_GENERIC_BUG
+ /* Support for BUG */
+ struct list_head bug_list;
+ struct bug_entry *bug_table;
+ unsigned num_bugs;
+#endif
+
+ /* Is this module GPG signed */
+ int gpgsig_ok;
#ifdef CONFIG_MODULE_UNLOAD
/* Reference counts */
Elf_Sym *symtab;
unsigned long num_symtab;
char *strtab;
+
+ /* Section attributes */
+ struct module_sect_attrs *sect_attrs;
#endif
/* Per-cpu data. */
return mod->state != MODULE_STATE_GOING;
}
-/* Is this address in a module? */
+/* Is this address in a module? (second is with no locks, for oops) */
struct module *module_text_address(unsigned long addr);
+struct module *__module_text_address(unsigned long addr);
+int is_module_address(unsigned long addr);
/* Returns module and fills in value, defined and namebuf, or NULL if
symnum out of range. */
-struct module *module_get_kallsym(unsigned int symnum,
- unsigned long *value,
- char *type,
- char namebuf[128]);
+struct module *module_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, size_t namelen);
/* Look for this name: can be of form module:name. */
unsigned long module_kallsyms_lookup_name(const char *name);
return ret;
}
-static inline void module_put(struct module *module)
-{
- if (module) {
- unsigned int cpu = get_cpu();
- local_dec(&module->ref[cpu].count);
- /* Maybe they're waiting for us to drop reference? */
- if (unlikely(!module_is_live(module)))
- wake_up_process(module->waiter);
- put_cpu();
- }
-}
+extern void module_put(struct module *module);
#else /*!CONFIG_MODULE_UNLOAD*/
static inline int try_module_get(struct module *module)
int register_module_notifier(struct notifier_block * nb);
int unregister_module_notifier(struct notifier_block * nb);
+extern void print_modules(void);
+
+struct device_driver;
+void module_add_driver(struct module *, struct device_driver *);
+void module_remove_driver(struct device_driver *);
+
#else /* !CONFIG_MODULES... */
#define EXPORT_SYMBOL(sym)
#define EXPORT_SYMBOL_GPL(sym)
-#define EXPORT_SYMBOL_NOVERS(sym)
+#define EXPORT_SYMBOL_GPL_FUTURE(sym)
+#define EXPORT_UNUSED_SYMBOL(sym)
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)
/* Given an address, look for it in the exception tables. */
static inline const struct exception_table_entry *
return NULL;
}
+/* Is this address in a module? (don't take a lock, we're oopsing) */
+static inline struct module *__module_text_address(unsigned long addr)
+{
+ return NULL;
+}
+
+static inline int is_module_address(unsigned long addr)
+{
+ return 0;
+}
+
/* Get/put a kernel symbol (calls should be symmetric) */
#define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
#define symbol_put(x) do { } while(0)
static inline struct module *module_get_kallsym(unsigned int symnum,
unsigned long *value,
- char *type,
- char namebuf[128])
+ char *type, char *name,
+ size_t namelen)
{
return NULL;
}
#define module_put_and_exit(code) do_exit(code)
-#endif /* CONFIG_MODULES */
-
-#define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
-
-/* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
+static inline void print_modules(void)
+{
+}
-struct obsolete_modparm {
- char name[64];
- char type[64-sizeof(void *)];
- void *addr;
-};
-#ifdef MODULE
-/* DEPRECATED: Do not use. */
-#define MODULE_PARM(var,type) \
-struct obsolete_modparm __parm_##var __attribute__((section("__obsparm"))) = \
-{ __stringify(var), type };
+struct device_driver;
+struct module;
-static inline void __deprecated MOD_INC_USE_COUNT(struct module *module)
+static inline void module_add_driver(struct module *module, struct device_driver *driver)
{
- __unsafe(module);
-
-#if defined(CONFIG_MODULE_UNLOAD) && defined(MODULE)
- local_inc(&module->ref[get_cpu()].count);
- put_cpu();
-#else
- (void)try_module_get(module);
-#endif
}
-static inline void __deprecated MOD_DEC_USE_COUNT(struct module *module)
+static inline void module_remove_driver(struct device_driver *driver)
{
- module_put(module);
}
-#define MOD_INC_USE_COUNT MOD_INC_USE_COUNT(THIS_MODULE)
-#define MOD_DEC_USE_COUNT MOD_DEC_USE_COUNT(THIS_MODULE)
-#else
-#define MODULE_PARM(var,type)
-#define MOD_INC_USE_COUNT do { } while (0)
-#define MOD_DEC_USE_COUNT do { } while (0)
-#endif
+#endif /* CONFIG_MODULES */
-#define __MODULE_STRING(x) __stringify(x)
+#define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
+
+/* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
-/* Use symbol_get and symbol_put instead. You'll thank me. */
-#define HAVE_INTER_MODULE
-extern void inter_module_register(const char *, struct module *, const void *);
-extern void inter_module_unregister(const char *);
-extern const void *inter_module_get(const char *);
-extern const void *inter_module_get_request(const char *, const char *);
-extern void inter_module_put(const char *);
+#define __MODULE_STRING(x) __stringify(x)
#endif /* _LINUX_MODULE_H */
git://git.onelab.eu / linux-2.6.git / blobdiff