897 строки
24 KiB
C
897 строки
24 KiB
C
#ifndef _LINUX_MODULE_H
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#define _LINUX_MODULE_H
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/*
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* Dynamic loading of modules into the kernel.
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*
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* Rewritten by Richard Henderson <rth@tamu.edu> Dec 1996
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* Rewritten again by Rusty Russell, 2002
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*/
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#include <linux/list.h>
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#include <linux/stat.h>
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#include <linux/compiler.h>
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#include <linux/cache.h>
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#include <linux/kmod.h>
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#include <linux/init.h>
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#include <linux/elf.h>
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#include <linux/stringify.h>
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#include <linux/kobject.h>
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#include <linux/moduleparam.h>
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#include <linux/jump_label.h>
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#include <linux/export.h>
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#include <linux/rbtree_latch.h>
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#include <linux/error-injection.h>
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#include <linux/tracepoint-defs.h>
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#include <linux/srcu.h>
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#include <linux/percpu.h>
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#include <asm/module.h>
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/* Not Yet Implemented */
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#define MODULE_SUPPORTED_DEVICE(name)
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#define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN
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struct modversion_info {
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unsigned long crc;
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char name[MODULE_NAME_LEN];
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};
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struct module;
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struct exception_table_entry;
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struct module_kobject {
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struct kobject kobj;
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struct module *mod;
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struct kobject *drivers_dir;
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struct module_param_attrs *mp;
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struct completion *kobj_completion;
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} __randomize_layout;
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struct module_attribute {
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struct attribute attr;
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ssize_t (*show)(struct module_attribute *, struct module_kobject *,
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char *);
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ssize_t (*store)(struct module_attribute *, struct module_kobject *,
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const char *, size_t count);
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void (*setup)(struct module *, const char *);
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int (*test)(struct module *);
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void (*free)(struct module *);
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};
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struct module_version_attribute {
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struct module_attribute mattr;
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const char *module_name;
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const char *version;
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} __attribute__ ((__aligned__(sizeof(void *))));
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extern ssize_t __modver_version_show(struct module_attribute *,
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struct module_kobject *, char *);
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extern struct module_attribute module_uevent;
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/* These are either module local, or the kernel's dummy ones. */
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extern int init_module(void);
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extern void cleanup_module(void);
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#ifndef MODULE
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/**
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* module_init() - driver initialization entry point
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* @x: function to be run at kernel boot time or module insertion
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*
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* module_init() will either be called during do_initcalls() (if
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* builtin) or at module insertion time (if a module). There can only
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* be one per module.
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*/
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#define module_init(x) __initcall(x);
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/**
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* module_exit() - driver exit entry point
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* @x: function to be run when driver is removed
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*
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* module_exit() will wrap the driver clean-up code
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* with cleanup_module() when used with rmmod when
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* the driver is a module. If the driver is statically
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* compiled into the kernel, module_exit() has no effect.
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* There can only be one per module.
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*/
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#define module_exit(x) __exitcall(x);
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#else /* MODULE */
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/*
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* In most cases loadable modules do not need custom
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* initcall levels. There are still some valid cases where
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* a driver may be needed early if built in, and does not
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* matter when built as a loadable module. Like bus
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* snooping debug drivers.
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*/
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#define early_initcall(fn) module_init(fn)
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#define core_initcall(fn) module_init(fn)
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#define core_initcall_sync(fn) module_init(fn)
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#define postcore_initcall(fn) module_init(fn)
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#define postcore_initcall_sync(fn) module_init(fn)
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#define arch_initcall(fn) module_init(fn)
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#define subsys_initcall(fn) module_init(fn)
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#define subsys_initcall_sync(fn) module_init(fn)
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#define fs_initcall(fn) module_init(fn)
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#define fs_initcall_sync(fn) module_init(fn)
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#define rootfs_initcall(fn) module_init(fn)
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#define device_initcall(fn) module_init(fn)
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#define device_initcall_sync(fn) module_init(fn)
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#define late_initcall(fn) module_init(fn)
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#define late_initcall_sync(fn) module_init(fn)
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#define console_initcall(fn) module_init(fn)
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/* Each module must use one module_init(). */
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#define module_init(initfn) \
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static inline initcall_t __maybe_unused __inittest(void) \
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{ return initfn; } \
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int init_module(void) __copy(initfn) __attribute__((alias(#initfn)));
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/* This is only required if you want to be unloadable. */
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#define module_exit(exitfn) \
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static inline exitcall_t __maybe_unused __exittest(void) \
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{ return exitfn; } \
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void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn)));
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#endif
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/* This means "can be init if no module support, otherwise module load
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may call it." */
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#ifdef CONFIG_MODULES
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#define __init_or_module
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#define __initdata_or_module
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#define __initconst_or_module
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#define __INIT_OR_MODULE .text
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#define __INITDATA_OR_MODULE .data
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#define __INITRODATA_OR_MODULE .section ".rodata","a",%progbits
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#else
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#define __init_or_module __init
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#define __initdata_or_module __initdata
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#define __initconst_or_module __initconst
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#define __INIT_OR_MODULE __INIT
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#define __INITDATA_OR_MODULE __INITDATA
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#define __INITRODATA_OR_MODULE __INITRODATA
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#endif /*CONFIG_MODULES*/
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/* Generic info of form tag = "info" */
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#define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
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/* For userspace: you can also call me... */
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#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
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/* Soft module dependencies. See man modprobe.d for details.
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* Example: MODULE_SOFTDEP("pre: module-foo module-bar post: module-baz")
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*/
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#define MODULE_SOFTDEP(_softdep) MODULE_INFO(softdep, _softdep)
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/*
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* The following license idents are currently accepted as indicating free
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* software modules
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*
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* "GPL" [GNU Public License v2]
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* "GPL v2" [GNU Public License v2]
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* "GPL and additional rights" [GNU Public License v2 rights and more]
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* "Dual BSD/GPL" [GNU Public License v2
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* or BSD license choice]
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* "Dual MIT/GPL" [GNU Public License v2
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* or MIT license choice]
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* "Dual MPL/GPL" [GNU Public License v2
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* or Mozilla license choice]
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*
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* The following other idents are available
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*
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* "Proprietary" [Non free products]
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*
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* Both "GPL v2" and "GPL" (the latter also in dual licensed strings) are
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* merely stating that the module is licensed under the GPL v2, but are not
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* telling whether "GPL v2 only" or "GPL v2 or later". The reason why there
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* are two variants is a historic and failed attempt to convey more
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* information in the MODULE_LICENSE string. For module loading the
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* "only/or later" distinction is completely irrelevant and does neither
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* replace the proper license identifiers in the corresponding source file
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* nor amends them in any way. The sole purpose is to make the
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* 'Proprietary' flagging work and to refuse to bind symbols which are
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* exported with EXPORT_SYMBOL_GPL when a non free module is loaded.
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*
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* In the same way "BSD" is not a clear license information. It merely
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* states, that the module is licensed under one of the compatible BSD
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* license variants. The detailed and correct license information is again
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* to be found in the corresponding source files.
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*
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* There are dual licensed components, but when running with Linux it is the
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* GPL that is relevant so this is a non issue. Similarly LGPL linked with GPL
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* is a GPL combined work.
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*
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* This exists for several reasons
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* 1. So modinfo can show license info for users wanting to vet their setup
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* is free
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* 2. So the community can ignore bug reports including proprietary modules
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* 3. So vendors can do likewise based on their own policies
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*/
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#define MODULE_LICENSE(_license) MODULE_INFO(license, _license)
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/*
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* Author(s), use "Name <email>" or just "Name", for multiple
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* authors use multiple MODULE_AUTHOR() statements/lines.
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*/
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#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
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/* What your module does. */
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#define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
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#ifdef MODULE
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/* Creates an alias so file2alias.c can find device table. */
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#define MODULE_DEVICE_TABLE(type, name) \
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extern typeof(name) __mod_##type##__##name##_device_table \
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__attribute__ ((unused, alias(__stringify(name))))
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#else /* !MODULE */
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#define MODULE_DEVICE_TABLE(type, name)
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#endif
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/* Version of form [<epoch>:]<version>[-<extra-version>].
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* Or for CVS/RCS ID version, everything but the number is stripped.
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* <epoch>: A (small) unsigned integer which allows you to start versions
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* anew. If not mentioned, it's zero. eg. "2:1.0" is after
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* "1:2.0".
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* <version>: The <version> may contain only alphanumerics and the
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* character `.'. Ordered by numeric sort for numeric parts,
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* ascii sort for ascii parts (as per RPM or DEB algorithm).
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* <extraversion>: Like <version>, but inserted for local
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* customizations, eg "rh3" or "rusty1".
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* Using this automatically adds a checksum of the .c files and the
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* local headers in "srcversion".
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*/
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#if defined(MODULE) || !defined(CONFIG_SYSFS)
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#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
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#else
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#define MODULE_VERSION(_version) \
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MODULE_INFO(version, _version); \
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static struct module_version_attribute ___modver_attr = { \
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.mattr = { \
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.attr = { \
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.name = "version", \
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.mode = S_IRUGO, \
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}, \
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.show = __modver_version_show, \
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}, \
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.module_name = KBUILD_MODNAME, \
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.version = _version, \
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}; \
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static const struct module_version_attribute \
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__used __attribute__ ((__section__ ("__modver"))) \
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* __moduleparam_const __modver_attr = &___modver_attr
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#endif
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/* Optional firmware file (or files) needed by the module
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* format is simply firmware file name. Multiple firmware
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* files require multiple MODULE_FIRMWARE() specifiers */
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#define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
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#define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
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struct notifier_block;
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#ifdef CONFIG_MODULES
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extern int modules_disabled; /* for sysctl */
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/* Get/put a kernel symbol (calls must be symmetric) */
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void *__symbol_get(const char *symbol);
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void *__symbol_get_gpl(const char *symbol);
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#define symbol_get(x) ((typeof(&x))(__symbol_get(__stringify(x))))
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/* modules using other modules: kdb wants to see this. */
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struct module_use {
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struct list_head source_list;
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struct list_head target_list;
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struct module *source, *target;
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};
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enum module_state {
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MODULE_STATE_LIVE, /* Normal state. */
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MODULE_STATE_COMING, /* Full formed, running module_init. */
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MODULE_STATE_GOING, /* Going away. */
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MODULE_STATE_UNFORMED, /* Still setting it up. */
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};
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struct mod_tree_node {
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struct module *mod;
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struct latch_tree_node node;
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};
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struct module_layout {
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/* The actual code + data. */
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void *base;
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/* Total size. */
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unsigned int size;
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/* The size of the executable code. */
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unsigned int text_size;
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/* Size of RO section of the module (text+rodata) */
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unsigned int ro_size;
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/* Size of RO after init section */
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unsigned int ro_after_init_size;
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#ifdef CONFIG_MODULES_TREE_LOOKUP
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struct mod_tree_node mtn;
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#endif
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};
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#ifdef CONFIG_MODULES_TREE_LOOKUP
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/* Only touch one cacheline for common rbtree-for-core-layout case. */
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#define __module_layout_align ____cacheline_aligned
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#else
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#define __module_layout_align
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#endif
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struct mod_kallsyms {
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Elf_Sym *symtab;
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unsigned int num_symtab;
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char *strtab;
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char *typetab;
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};
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#ifdef CONFIG_LIVEPATCH
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struct klp_modinfo {
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Elf_Ehdr hdr;
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Elf_Shdr *sechdrs;
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char *secstrings;
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unsigned int symndx;
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};
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#endif
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struct module {
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enum module_state state;
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/* Member of list of modules */
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struct list_head list;
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/* Unique handle for this module */
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char name[MODULE_NAME_LEN];
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/* Sysfs stuff. */
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struct module_kobject mkobj;
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struct module_attribute *modinfo_attrs;
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const char *version;
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const char *srcversion;
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struct kobject *holders_dir;
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/* Exported symbols */
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const struct kernel_symbol *syms;
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const s32 *crcs;
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unsigned int num_syms;
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/* Kernel parameters. */
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#ifdef CONFIG_SYSFS
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struct mutex param_lock;
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#endif
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struct kernel_param *kp;
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unsigned int num_kp;
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/* GPL-only exported symbols. */
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unsigned int num_gpl_syms;
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const struct kernel_symbol *gpl_syms;
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const s32 *gpl_crcs;
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#ifdef CONFIG_UNUSED_SYMBOLS
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/* unused exported symbols. */
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const struct kernel_symbol *unused_syms;
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const s32 *unused_crcs;
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unsigned int num_unused_syms;
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/* GPL-only, unused exported symbols. */
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unsigned int num_unused_gpl_syms;
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const struct kernel_symbol *unused_gpl_syms;
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const s32 *unused_gpl_crcs;
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#endif
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#ifdef CONFIG_MODULE_SIG
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/* Signature was verified. */
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bool sig_ok;
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#endif
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bool async_probe_requested;
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/* symbols that will be GPL-only in the near future. */
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const struct kernel_symbol *gpl_future_syms;
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const s32 *gpl_future_crcs;
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unsigned int num_gpl_future_syms;
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/* Exception table */
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unsigned int num_exentries;
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struct exception_table_entry *extable;
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/* Startup function. */
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int (*init)(void);
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/* Core layout: rbtree is accessed frequently, so keep together. */
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struct module_layout core_layout __module_layout_align;
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struct module_layout init_layout;
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/* Arch-specific module values */
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struct mod_arch_specific arch;
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unsigned long taints; /* same bits as kernel:taint_flags */
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#ifdef CONFIG_GENERIC_BUG
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/* Support for BUG */
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unsigned num_bugs;
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struct list_head bug_list;
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struct bug_entry *bug_table;
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#endif
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#ifdef CONFIG_KALLSYMS
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/* Protected by RCU and/or module_mutex: use rcu_dereference() */
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struct mod_kallsyms *kallsyms;
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struct mod_kallsyms core_kallsyms;
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/* Section attributes */
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struct module_sect_attrs *sect_attrs;
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/* Notes attributes */
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struct module_notes_attrs *notes_attrs;
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#endif
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/* The command line arguments (may be mangled). People like
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keeping pointers to this stuff */
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char *args;
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#ifdef CONFIG_SMP
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/* Per-cpu data. */
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void __percpu *percpu;
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unsigned int percpu_size;
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#endif
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#ifdef CONFIG_TRACEPOINTS
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unsigned int num_tracepoints;
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tracepoint_ptr_t *tracepoints_ptrs;
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#endif
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#ifdef CONFIG_TREE_SRCU
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unsigned int num_srcu_structs;
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struct srcu_struct **srcu_struct_ptrs;
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#endif
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#ifdef CONFIG_BPF_EVENTS
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unsigned int num_bpf_raw_events;
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struct bpf_raw_event_map *bpf_raw_events;
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#endif
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#ifdef CONFIG_JUMP_LABEL
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struct jump_entry *jump_entries;
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unsigned int num_jump_entries;
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#endif
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#ifdef CONFIG_TRACING
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unsigned int num_trace_bprintk_fmt;
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const char **trace_bprintk_fmt_start;
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#endif
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#ifdef CONFIG_EVENT_TRACING
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struct trace_event_call **trace_events;
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unsigned int num_trace_events;
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struct trace_eval_map **trace_evals;
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unsigned int num_trace_evals;
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#endif
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#ifdef CONFIG_FTRACE_MCOUNT_RECORD
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unsigned int num_ftrace_callsites;
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unsigned long *ftrace_callsites;
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#endif
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#ifdef CONFIG_LIVEPATCH
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bool klp; /* Is this a livepatch module? */
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bool klp_alive;
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/* Elf information */
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struct klp_modinfo *klp_info;
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#endif
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#ifdef CONFIG_MODULE_UNLOAD
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/* What modules depend on me? */
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struct list_head source_list;
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/* What modules do I depend on? */
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struct list_head target_list;
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/* Destruction function. */
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void (*exit)(void);
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atomic_t refcnt;
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#endif
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#ifdef CONFIG_CONSTRUCTORS
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/* Constructor functions. */
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ctor_fn_t *ctors;
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unsigned int num_ctors;
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#endif
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#ifdef CONFIG_FUNCTION_ERROR_INJECTION
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struct error_injection_entry *ei_funcs;
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unsigned int num_ei_funcs;
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#endif
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} ____cacheline_aligned __randomize_layout;
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#ifndef MODULE_ARCH_INIT
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#define MODULE_ARCH_INIT {}
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#endif
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#ifndef HAVE_ARCH_KALLSYMS_SYMBOL_VALUE
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static inline unsigned long kallsyms_symbol_value(const Elf_Sym *sym)
|
|
{
|
|
return sym->st_value;
|
|
}
|
|
#endif
|
|
|
|
extern struct mutex module_mutex;
|
|
|
|
/* FIXME: It'd be nice to isolate modules during init, too, so they
|
|
aren't used before they (may) fail. But presently too much code
|
|
(IDE & SCSI) require entry into the module during init.*/
|
|
static inline bool module_is_live(struct module *mod)
|
|
{
|
|
return mod->state != MODULE_STATE_GOING;
|
|
}
|
|
|
|
struct module *__module_text_address(unsigned long addr);
|
|
struct module *__module_address(unsigned long addr);
|
|
bool is_module_address(unsigned long addr);
|
|
bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr);
|
|
bool is_module_percpu_address(unsigned long addr);
|
|
bool is_module_text_address(unsigned long addr);
|
|
|
|
static inline bool within_module_core(unsigned long addr,
|
|
const struct module *mod)
|
|
{
|
|
return (unsigned long)mod->core_layout.base <= addr &&
|
|
addr < (unsigned long)mod->core_layout.base + mod->core_layout.size;
|
|
}
|
|
|
|
static inline bool within_module_init(unsigned long addr,
|
|
const struct module *mod)
|
|
{
|
|
return (unsigned long)mod->init_layout.base <= addr &&
|
|
addr < (unsigned long)mod->init_layout.base + mod->init_layout.size;
|
|
}
|
|
|
|
static inline bool within_module(unsigned long addr, const struct module *mod)
|
|
{
|
|
return within_module_init(addr, mod) || within_module_core(addr, mod);
|
|
}
|
|
|
|
/* Search for module by name: must hold module_mutex. */
|
|
struct module *find_module(const char *name);
|
|
|
|
struct symsearch {
|
|
const struct kernel_symbol *start, *stop;
|
|
const s32 *crcs;
|
|
enum {
|
|
NOT_GPL_ONLY,
|
|
GPL_ONLY,
|
|
WILL_BE_GPL_ONLY,
|
|
} licence;
|
|
bool unused;
|
|
};
|
|
|
|
/*
|
|
* Search for an exported symbol by name.
|
|
*
|
|
* Must be called with module_mutex held or preemption disabled.
|
|
*/
|
|
const struct kernel_symbol *find_symbol(const char *name,
|
|
struct module **owner,
|
|
const s32 **crc,
|
|
bool gplok,
|
|
bool warn);
|
|
|
|
/*
|
|
* Walk the exported symbol table
|
|
*
|
|
* Must be called with module_mutex held or preemption disabled.
|
|
*/
|
|
bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
|
|
struct module *owner,
|
|
void *data), void *data);
|
|
|
|
/* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
|
|
symnum out of range. */
|
|
int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
|
|
char *name, char *module_name, int *exported);
|
|
|
|
/* Look for this name: can be of form module:name. */
|
|
unsigned long module_kallsyms_lookup_name(const char *name);
|
|
|
|
int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
|
|
struct module *, unsigned long),
|
|
void *data);
|
|
|
|
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
|
|
int module_refcount(struct module *mod);
|
|
void __symbol_put(const char *symbol);
|
|
#define symbol_put(x) __symbol_put(__stringify(x))
|
|
void symbol_put_addr(void *addr);
|
|
|
|
/* Sometimes we know we already have a refcount, and it's easier not
|
|
to handle the error case (which only happens with rmmod --wait). */
|
|
extern void __module_get(struct module *module);
|
|
|
|
/* This is the Right Way to get a module: if it fails, it's being removed,
|
|
* so pretend it's not there. */
|
|
extern bool try_module_get(struct module *module);
|
|
|
|
extern void module_put(struct module *module);
|
|
|
|
#else /*!CONFIG_MODULE_UNLOAD*/
|
|
static inline bool try_module_get(struct module *module)
|
|
{
|
|
return !module || module_is_live(module);
|
|
}
|
|
static inline void module_put(struct module *module)
|
|
{
|
|
}
|
|
static inline void __module_get(struct module *module)
|
|
{
|
|
}
|
|
#define symbol_put(x) do { } while (0)
|
|
#define symbol_put_addr(p) do { } while (0)
|
|
|
|
#endif /* CONFIG_MODULE_UNLOAD */
|
|
int ref_module(struct module *a, struct module *b);
|
|
|
|
/* This is a #define so the string doesn't get put in every .o file */
|
|
#define module_name(mod) \
|
|
({ \
|
|
struct module *__mod = (mod); \
|
|
__mod ? __mod->name : "kernel"; \
|
|
})
|
|
|
|
/* Dereference module function descriptor */
|
|
void *dereference_module_function_descriptor(struct module *mod, void *ptr);
|
|
|
|
/* For kallsyms to ask for address resolution. namebuf should be at
|
|
* least KSYM_NAME_LEN long: a pointer to namebuf is returned if
|
|
* found, otherwise NULL. */
|
|
const char *module_address_lookup(unsigned long addr,
|
|
unsigned long *symbolsize,
|
|
unsigned long *offset,
|
|
char **modname,
|
|
char *namebuf);
|
|
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);
|
|
|
|
int register_module_notifier(struct notifier_block *nb);
|
|
int unregister_module_notifier(struct notifier_block *nb);
|
|
|
|
extern void print_modules(void);
|
|
|
|
static inline bool module_requested_async_probing(struct module *module)
|
|
{
|
|
return module && module->async_probe_requested;
|
|
}
|
|
|
|
#ifdef CONFIG_LIVEPATCH
|
|
static inline bool is_livepatch_module(struct module *mod)
|
|
{
|
|
return mod->klp;
|
|
}
|
|
#else /* !CONFIG_LIVEPATCH */
|
|
static inline bool is_livepatch_module(struct module *mod)
|
|
{
|
|
return false;
|
|
}
|
|
#endif /* CONFIG_LIVEPATCH */
|
|
|
|
bool is_module_sig_enforced(void);
|
|
void set_module_sig_enforced(void);
|
|
|
|
#else /* !CONFIG_MODULES... */
|
|
|
|
static inline struct module *__module_address(unsigned long addr)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct module *__module_text_address(unsigned long addr)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline bool is_module_address(unsigned long addr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool is_module_percpu_address(unsigned long addr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool __is_module_percpu_address(unsigned long addr, unsigned long *can_addr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool is_module_text_address(unsigned long addr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool within_module_core(unsigned long addr,
|
|
const struct module *mod)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool within_module_init(unsigned long addr,
|
|
const struct module *mod)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool within_module(unsigned long addr, const struct module *mod)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/* 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)
|
|
#define symbol_put_addr(x) do { } while (0)
|
|
|
|
static inline void __module_get(struct module *module)
|
|
{
|
|
}
|
|
|
|
static inline bool try_module_get(struct module *module)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline void module_put(struct module *module)
|
|
{
|
|
}
|
|
|
|
#define module_name(mod) "kernel"
|
|
|
|
/* For kallsyms to ask for address resolution. NULL means not found. */
|
|
static inline const char *module_address_lookup(unsigned long addr,
|
|
unsigned long *symbolsize,
|
|
unsigned long *offset,
|
|
char **modname,
|
|
char *namebuf)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int lookup_module_symbol_name(unsigned long addr, char *symname)
|
|
{
|
|
return -ERANGE;
|
|
}
|
|
|
|
static inline int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name)
|
|
{
|
|
return -ERANGE;
|
|
}
|
|
|
|
static inline int module_get_kallsym(unsigned int symnum, unsigned long *value,
|
|
char *type, char *name,
|
|
char *module_name, int *exported)
|
|
{
|
|
return -ERANGE;
|
|
}
|
|
|
|
static inline unsigned long module_kallsyms_lookup_name(const char *name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *,
|
|
struct module *,
|
|
unsigned long),
|
|
void *data)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int register_module_notifier(struct notifier_block *nb)
|
|
{
|
|
/* no events will happen anyway, so this can always succeed */
|
|
return 0;
|
|
}
|
|
|
|
static inline int unregister_module_notifier(struct notifier_block *nb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#define module_put_and_exit(code) do_exit(code)
|
|
|
|
static inline void print_modules(void)
|
|
{
|
|
}
|
|
|
|
static inline bool module_requested_async_probing(struct module *module)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool is_module_sig_enforced(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline void set_module_sig_enforced(void)
|
|
{
|
|
}
|
|
|
|
/* Dereference module function descriptor */
|
|
static inline
|
|
void *dereference_module_function_descriptor(struct module *mod, void *ptr)
|
|
{
|
|
return ptr;
|
|
}
|
|
|
|
#endif /* CONFIG_MODULES */
|
|
|
|
#ifdef CONFIG_SYSFS
|
|
extern struct kset *module_kset;
|
|
extern struct kobj_type module_ktype;
|
|
extern int module_sysfs_initialized;
|
|
#endif /* CONFIG_SYSFS */
|
|
|
|
#define symbol_request(x) try_then_request_module(symbol_get(x), "symbol:" #x)
|
|
|
|
/* BELOW HERE ALL THESE ARE OBSOLETE AND WILL VANISH */
|
|
|
|
#define __MODULE_STRING(x) __stringify(x)
|
|
|
|
#ifdef CONFIG_STRICT_MODULE_RWX
|
|
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, 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, bool after_init) { }
|
|
static inline void module_disable_ro(const struct module *mod) { }
|
|
#endif
|
|
|
|
#ifdef CONFIG_GENERIC_BUG
|
|
void module_bug_finalize(const Elf_Ehdr *, const Elf_Shdr *,
|
|
struct module *);
|
|
void module_bug_cleanup(struct module *);
|
|
|
|
#else /* !CONFIG_GENERIC_BUG */
|
|
|
|
static inline void module_bug_finalize(const Elf_Ehdr *hdr,
|
|
const Elf_Shdr *sechdrs,
|
|
struct module *mod)
|
|
{
|
|
}
|
|
static inline void module_bug_cleanup(struct module *mod) {}
|
|
#endif /* CONFIG_GENERIC_BUG */
|
|
|
|
#ifdef CONFIG_RETPOLINE
|
|
extern bool retpoline_module_ok(bool has_retpoline);
|
|
#else
|
|
static inline bool retpoline_module_ok(bool has_retpoline)
|
|
{
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_MODULE_SIG
|
|
static inline bool module_sig_ok(struct module *module)
|
|
{
|
|
return module->sig_ok;
|
|
}
|
|
#else /* !CONFIG_MODULE_SIG */
|
|
static inline bool module_sig_ok(struct module *module)
|
|
{
|
|
return true;
|
|
}
|
|
#endif /* CONFIG_MODULE_SIG */
|
|
|
|
#endif /* _LINUX_MODULE_H */
|