diff options
Diffstat (limited to 'include/linux/module.h')
| -rw-r--r-- | include/linux/module.h | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/include/linux/module.h b/include/linux/module.h index 2bb0c3085706..0c3207d26ac0 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -18,6 +18,7 @@ #include <linux/moduleparam.h> #include <linux/jump_label.h> #include <linux/export.h> +#include <linux/extable.h> /* only as arch move module.h -> extable.h */ #include <linux/rbtree_latch.h> #include <linux/percpu.h> @@ -37,6 +38,7 @@ struct modversion_info { }; struct module; +struct exception_table_entry; struct module_kobject { struct kobject kobj; @@ -155,18 +157,6 @@ extern void cleanup_module(void); #define __INITRODATA_OR_MODULE __INITRODATA #endif /*CONFIG_MODULES*/ -/* Archs provide a method of finding the correct exception table. */ -struct exception_table_entry; - -const struct exception_table_entry * -search_extable(const struct exception_table_entry *first, - const struct exception_table_entry *last, - unsigned long value); -void sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish); -void sort_main_extable(void); -void trim_init_extable(struct module *m); - /* Generic info of form tag = "info" */ #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info) @@ -268,9 +258,6 @@ extern const typeof(name) __mod_##type##__##name##_device_table \ * 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); - struct notifier_block; #ifdef CONFIG_MODULES @@ -311,6 +298,8 @@ struct module_layout { unsigned int text_size; /* Size of RO section of the module (text+rodata) */ unsigned int ro_size; + /* Size of RO after init section */ + unsigned int ro_after_init_size; #ifdef CONFIG_MODULES_TREE_LOOKUP struct mod_tree_node mtn; @@ -330,6 +319,15 @@ struct mod_kallsyms { char *strtab; }; +#ifdef CONFIG_LIVEPATCH +struct klp_modinfo { + Elf_Ehdr hdr; + Elf_Shdr *sechdrs; + char *secstrings; + unsigned int symndx; +}; +#endif + struct module { enum module_state state; @@ -456,7 +454,11 @@ struct module { #endif #ifdef CONFIG_LIVEPATCH + bool klp; /* Is this a livepatch module? */ bool klp_alive; + + /* Elf information */ + struct klp_modinfo *klp_info; #endif #ifdef CONFIG_MODULE_UNLOAD @@ -562,8 +564,8 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *, unsigned long), void *data); -extern void __module_put_and_exit(struct module *mod, long code) - __attribute__((noreturn)); +extern void __noreturn __module_put_and_exit(struct module *mod, + long code); #define module_put_and_exit(code) __module_put_and_exit(THIS_MODULE, code) #ifdef CONFIG_MODULE_UNLOAD @@ -617,9 +619,6 @@ const char *module_address_lookup(unsigned long addr, int lookup_module_symbol_name(unsigned long addr, char *symname); int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name); -/* For extable.c to search modules' exception tables. */ -const struct exception_table_entry *search_module_extables(unsigned long addr); - int register_module_notifier(struct notifier_block *nb); int unregister_module_notifier(struct notifier_block *nb); @@ -630,14 +629,19 @@ static inline bool module_requested_async_probing(struct module *module) return module && module->async_probe_requested; } -#else /* !CONFIG_MODULES... */ - -/* Given an address, look for it in the exception tables. */ -static inline const struct exception_table_entry * -search_module_extables(unsigned long addr) +#ifdef CONFIG_LIVEPATCH +static inline bool is_livepatch_module(struct module *mod) { - return NULL; + return mod->klp; } +#else /* !CONFIG_LIVEPATCH */ +static inline bool is_livepatch_module(struct module *mod) +{ + return false; +} +#endif /* CONFIG_LIVEPATCH */ + +#else /* !CONFIG_MODULES... */ static inline struct module *__module_address(unsigned long addr) { @@ -763,12 +767,12 @@ extern int module_sysfs_initialized; #ifdef CONFIG_DEBUG_SET_MODULE_RONX extern void set_all_modules_text_rw(void); extern void set_all_modules_text_ro(void); -extern void module_enable_ro(const struct module *mod); +extern void module_enable_ro(const struct module *mod, bool after_init); extern void module_disable_ro(const struct module *mod); #else static inline void set_all_modules_text_rw(void) { } static inline void set_all_modules_text_ro(void) { } -static inline void module_enable_ro(const struct module *mod) { } +static inline void module_enable_ro(const struct module *mod, bool after_init) { } static inline void module_disable_ro(const struct module *mod) { } #endif |