最終更新:2014-05-08 (木) 06:08:58 (2285d)  

module
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struct module {
        enum module_state state;

        /* Member of list of modules */
        struct list_head list;

        /* Unique handle for this module */
        char name[MODULE_NAME_LEN];

        /* Sysfs stuff. */
        struct module_kobject mkobj;
        struct module_attribute *modinfo_attrs;
        const char *version;
        const char *srcversion;
        struct kobject *holders_dir;

        /* Exported symbols */
        const struct kernel_symbol *syms;
        const unsigned long *crcs;
        unsigned int num_syms;

        /* Kernel parameters. */
        struct kernel_param *kp;
        unsigned int num_kp;

        /* GPL-only exported symbols. */
        unsigned int num_gpl_syms;
        const struct kernel_symbol *gpl_syms;
        const unsigned long *gpl_crcs;

#ifdef CONFIG_UNUSED_SYMBOLS
        /* unused exported symbols. */
        const struct kernel_symbol *unused_syms;
        const unsigned long *unused_crcs;
        unsigned int num_unused_syms;

        /* GPL-only, unused exported symbols. */
        unsigned int num_unused_gpl_syms;
        const struct kernel_symbol *unused_gpl_syms;
        const unsigned long *unused_gpl_crcs;
#endif

#ifdef CONFIG_MODULE_SIG
        /* Signature was verified. */
        bool sig_ok;
#endif

        /* symbols that will be GPL-only in the near future. */
        const struct kernel_symbol *gpl_future_syms;
        const unsigned long *gpl_future_crcs;
        unsigned int num_gpl_future_syms;

        /* Exception table */
        unsigned int num_exentries;
        struct exception_table_entry *extable;

        /* Startup function. */
        int (*init)(void);

        /* If this is non-NULL, vfree after init() returns */
        void *module_init;

        /* Here is the actual code + data, vfree'd on unload. */
        void *module_core;

        /* Here are the sizes of the init and core sections */
        unsigned int init_size, core_size;

        /* The size of the executable code in each section.  */
        unsigned int init_text_size, core_text_size;

        /* Size of RO sections of the module (text+rodata) */
        unsigned int init_ro_size, core_ro_size;

        /* Arch-specific module values */
        struct mod_arch_specific arch;

        unsigned int taints;    /* same bits as kernel:tainted */

#ifdef CONFIG_GENERIC_BUG
        /* Support for BUG */
        unsigned num_bugs;
        struct list_head bug_list;
        struct bug_entry *bug_table;
#endif

#ifdef CONFIG_KALLSYMS
        /*
         * We keep the symbol and string tables for kallsyms.
         * The core_* fields below are temporary, loader-only (they
         * could really be discarded after module init).
         */
        Elf_Sym *symtab, *core_symtab;
        unsigned int num_symtab, core_num_syms;
        char *strtab, *core_strtab;

        /* Section attributes */
        struct module_sect_attrs *sect_attrs;

        /* Notes attributes */
        struct module_notes_attrs *notes_attrs;
#endif

        /* The command line arguments (may be mangled).  People like
           keeping pointers to this stuff */
        char *args;

#ifdef CONFIG_SMP
        /* Per-cpu data. */
        void __percpu *percpu;
        unsigned int percpu_size;
#endif

#ifdef CONFIG_TRACEPOINTS
        unsigned int num_tracepoints;
        struct tracepoint * const *tracepoints_ptrs;
#endif
#ifdef HAVE_JUMP_LABEL
        struct jump_entry *jump_entries;
        unsigned int num_jump_entries;
#endif
#ifdef CONFIG_TRACING
        unsigned int num_trace_bprintk_fmt;
        const char **trace_bprintk_fmt_start;
#endif
#ifdef CONFIG_EVENT_TRACING
        struct ftrace_event_call **trace_events;
        unsigned int num_trace_events;
#endif
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
        unsigned int num_ftrace_callsites;
        unsigned long *ftrace_callsites;
#endif

#ifdef CONFIG_MODULE_UNLOAD
        /* What modules depend on me? */
        struct list_head source_list;
        /* What modules do I depend on? */
        struct list_head target_list;

        /* Destruction function. */
        void (*exit)(void);

        struct module_ref __percpu *refptr;
#endif

#ifdef CONFIG_CONSTRUCTORS
        /* Constructor functions. */
        ctor_fn_t *ctors;
        unsigned int num_ctors;
#endif
};