X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=kernel%2Fmodule.c;h=0d8d21ee792c4e5812694162d241b7975ffd99bf;hb=92b29b86fe2e183d44eb467e5e74a5f718ef2e43;hp=705e1d5d516cc54b1056003737407af9c7090447;hpb=da39ba5e1d65e997a98f6eb93ba6e6eb505f6e3c;p=safe%2Fjmp%2Flinux-2.6

diff --git a/kernel/module.c b/kernel/module.c
index 705e1d5..0d8d21e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -46,6 +46,8 @@
 #include <asm/cacheflush.h>
 #include <linux/license.h>
 #include <asm/sections.h>
+#include <linux/tracepoint.h>
+#include <linux/ftrace.h>
 
 #if 0
 #define DEBUGP printk
@@ -70,6 +72,9 @@ static DECLARE_WAIT_QUEUE_HEAD(module_wq);
 
 static BLOCKING_NOTIFIER_HEAD(module_notify_list);
 
+/* Bounds of module allocation, for speeding __module_text_address */
+static unsigned long module_addr_min = -1UL, module_addr_max = 0;
+
 int register_module_notifier(struct notifier_block * nb)
 {
 	return blocking_notifier_chain_register(&module_notify_list, nb);
@@ -97,7 +102,7 @@ static inline int strong_try_module_get(struct module *mod)
 static inline void add_taint_module(struct module *mod, unsigned flag)
 {
 	add_taint(flag);
-	mod->taints |= flag;
+	mod->taints |= (1U << flag);
 }
 
 /*
@@ -134,17 +139,19 @@ extern const struct kernel_symbol __start___ksymtab_gpl[];
 extern const struct kernel_symbol __stop___ksymtab_gpl[];
 extern const struct kernel_symbol __start___ksymtab_gpl_future[];
 extern const struct kernel_symbol __stop___ksymtab_gpl_future[];
-extern const struct kernel_symbol __start___ksymtab_unused[];
-extern const struct kernel_symbol __stop___ksymtab_unused[];
-extern const struct kernel_symbol __start___ksymtab_unused_gpl[];
-extern const struct kernel_symbol __stop___ksymtab_unused_gpl[];
 extern const struct kernel_symbol __start___ksymtab_gpl_future[];
 extern const struct kernel_symbol __stop___ksymtab_gpl_future[];
 extern const unsigned long __start___kcrctab[];
 extern const unsigned long __start___kcrctab_gpl[];
 extern const unsigned long __start___kcrctab_gpl_future[];
+#ifdef CONFIG_UNUSED_SYMBOLS
+extern const struct kernel_symbol __start___ksymtab_unused[];
+extern const struct kernel_symbol __stop___ksymtab_unused[];
+extern const struct kernel_symbol __start___ksymtab_unused_gpl[];
+extern const struct kernel_symbol __stop___ksymtab_unused_gpl[];
 extern const unsigned long __start___kcrctab_unused[];
 extern const unsigned long __start___kcrctab_unused_gpl[];
+#endif
 
 #ifndef CONFIG_MODVERSIONS
 #define symversion(base, idx) NULL
@@ -152,152 +159,170 @@ extern const unsigned long __start___kcrctab_unused_gpl[];
 #define symversion(base, idx) ((base != NULL) ? ((base) + (idx)) : NULL)
 #endif
 
-/* lookup symbol in given range of kernel_symbols */
-static const struct kernel_symbol *lookup_symbol(const char *name,
-	const struct kernel_symbol *start,
-	const struct kernel_symbol *stop)
-{
-	const struct kernel_symbol *ks = start;
-	for (; ks < stop; ks++)
-		if (strcmp(ks->name, name) == 0)
-			return ks;
-	return NULL;
-}
-
-static bool always_ok(bool gplok, bool warn, const char *name)
-{
-	return true;
-}
-
-static bool printk_unused_warning(bool gplok, bool warn, const char *name)
-{
-	if (warn) {
-		printk(KERN_WARNING "Symbol %s is marked as UNUSED, "
-		       "however this module is using it.\n", name);
-		printk(KERN_WARNING
-		       "This symbol will go away in the future.\n");
-		printk(KERN_WARNING
-		       "Please evalute if this is the right api to use and if "
-		       "it really is, submit a report the linux kernel "
-		       "mailinglist together with submitting your code for "
-		       "inclusion.\n");
-	}
-	return true;
-}
-
-static bool gpl_only_unused_warning(bool gplok, bool warn, const char *name)
-{
-	if (!gplok)
-		return false;
-	return printk_unused_warning(gplok, warn, name);
-}
-
-static bool gpl_only(bool gplok, bool warn, const char *name)
-{
-	return gplok;
-}
-
-static bool warn_if_not_gpl(bool gplok, bool warn, const char *name)
-{
-	if (!gplok && warn) {
-		printk(KERN_WARNING "Symbol %s is being used "
-		       "by a non-GPL module, which will not "
-		       "be allowed in the future\n", name);
-		printk(KERN_WARNING "Please see the file "
-		       "Documentation/feature-removal-schedule.txt "
-		       "in the kernel source tree for more details.\n");
-	}
-	return true;
-}
-
 struct symsearch {
 	const struct kernel_symbol *start, *stop;
 	const unsigned long *crcs;
-	bool (*check)(bool gplok, bool warn, const char *name);
+	enum {
+		NOT_GPL_ONLY,
+		GPL_ONLY,
+		WILL_BE_GPL_ONLY,
+	} licence;
+	bool unused;
 };
 
-/* Look through this array of symbol tables for a symbol match which
- * passes the check function. */
-static const struct kernel_symbol *search_symarrays(const struct symsearch *arr,
-						    unsigned int num,
-						    const char *name,
-						    bool gplok,
-						    bool warn,
-						    const unsigned long **crc)
+static bool each_symbol_in_section(const struct symsearch *arr,
+				   unsigned int arrsize,
+				   struct module *owner,
+				   bool (*fn)(const struct symsearch *syms,
+					      struct module *owner,
+					      unsigned int symnum, void *data),
+				   void *data)
 {
-	unsigned int i;
-	const struct kernel_symbol *ks;
-
-	for (i = 0; i < num; i++) {
-		ks = lookup_symbol(name, arr[i].start, arr[i].stop);
-		if (!ks || !arr[i].check(gplok, warn, name))
-			continue;
+	unsigned int i, j;
 
-		if (crc)
-			*crc = symversion(arr[i].crcs, ks - arr[i].start);
-		return ks;
+	for (j = 0; j < arrsize; j++) {
+		for (i = 0; i < arr[j].stop - arr[j].start; i++)
+			if (fn(&arr[j], owner, i, data))
+				return true;
 	}
-	return NULL;
+
+	return false;
 }
 
-/* Find a symbol, return value, (optional) crc and (optional) module
- * which owns it */
-static unsigned long find_symbol(const char *name,
-				 struct module **owner,
-				 const unsigned long **crc,
-				 bool gplok,
-				 bool warn)
+/* Returns true as soon as fn returns true, otherwise false. */
+static bool each_symbol(bool (*fn)(const struct symsearch *arr,
+				   struct module *owner,
+				   unsigned int symnum, void *data),
+			void *data)
 {
 	struct module *mod;
-	const struct kernel_symbol *ks;
 	const struct symsearch arr[] = {
 		{ __start___ksymtab, __stop___ksymtab, __start___kcrctab,
-		  always_ok },
+		  NOT_GPL_ONLY, false },
 		{ __start___ksymtab_gpl, __stop___ksymtab_gpl,
-		  __start___kcrctab_gpl, gpl_only },
+		  __start___kcrctab_gpl,
+		  GPL_ONLY, false },
 		{ __start___ksymtab_gpl_future, __stop___ksymtab_gpl_future,
-		  __start___kcrctab_gpl_future, warn_if_not_gpl },
+		  __start___kcrctab_gpl_future,
+		  WILL_BE_GPL_ONLY, false },
+#ifdef CONFIG_UNUSED_SYMBOLS
 		{ __start___ksymtab_unused, __stop___ksymtab_unused,
-		  __start___kcrctab_unused, printk_unused_warning },
+		  __start___kcrctab_unused,
+		  NOT_GPL_ONLY, true },
 		{ __start___ksymtab_unused_gpl, __stop___ksymtab_unused_gpl,
-		  __start___kcrctab_unused_gpl, gpl_only_unused_warning },
+		  __start___kcrctab_unused_gpl,
+		  GPL_ONLY, true },
+#endif
 	};
 
-	/* Core kernel first. */
-	ks = search_symarrays(arr, ARRAY_SIZE(arr), name, gplok, warn, crc);
-	if (ks) {
-		if (owner)
-			*owner = NULL;
-		return ks->value;
-	}
+	if (each_symbol_in_section(arr, ARRAY_SIZE(arr), NULL, fn, data))
+		return true;
 
-	/* Now try modules. */
 	list_for_each_entry(mod, &modules, list) {
 		struct symsearch arr[] = {
 			{ mod->syms, mod->syms + mod->num_syms, mod->crcs,
-			  always_ok },
+			  NOT_GPL_ONLY, false },
 			{ mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
-			  mod->gpl_crcs, gpl_only },
+			  mod->gpl_crcs,
+			  GPL_ONLY, false },
 			{ mod->gpl_future_syms,
 			  mod->gpl_future_syms + mod->num_gpl_future_syms,
-			  mod->gpl_future_crcs, warn_if_not_gpl },
+			  mod->gpl_future_crcs,
+			  WILL_BE_GPL_ONLY, false },
+#ifdef CONFIG_UNUSED_SYMBOLS
 			{ mod->unused_syms,
 			  mod->unused_syms + mod->num_unused_syms,
-			  mod->unused_crcs, printk_unused_warning },
+			  mod->unused_crcs,
+			  NOT_GPL_ONLY, true },
 			{ mod->unused_gpl_syms,
 			  mod->unused_gpl_syms + mod->num_unused_gpl_syms,
-			  mod->unused_gpl_crcs, gpl_only_unused_warning },
+			  mod->unused_gpl_crcs,
+			  GPL_ONLY, true },
+#endif
 		};
 
-		ks = search_symarrays(arr, ARRAY_SIZE(arr),
-				      name, gplok, warn, crc);
-		if (ks) {
-			if (owner)
-				*owner = mod;
-			return ks->value;
+		if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
+			return true;
+	}
+	return false;
+}
+
+struct find_symbol_arg {
+	/* Input */
+	const char *name;
+	bool gplok;
+	bool warn;
+
+	/* Output */
+	struct module *owner;
+	const unsigned long *crc;
+	unsigned long value;
+};
+
+static bool find_symbol_in_section(const struct symsearch *syms,
+				   struct module *owner,
+				   unsigned int symnum, void *data)
+{
+	struct find_symbol_arg *fsa = data;
+
+	if (strcmp(syms->start[symnum].name, fsa->name) != 0)
+		return false;
+
+	if (!fsa->gplok) {
+		if (syms->licence == GPL_ONLY)
+			return false;
+		if (syms->licence == WILL_BE_GPL_ONLY && fsa->warn) {
+			printk(KERN_WARNING "Symbol %s is being used "
+			       "by a non-GPL module, which will not "
+			       "be allowed in the future\n", fsa->name);
+			printk(KERN_WARNING "Please see the file "
+			       "Documentation/feature-removal-schedule.txt "
+			       "in the kernel source tree for more details.\n");
 		}
 	}
 
+#ifdef CONFIG_UNUSED_SYMBOLS
+	if (syms->unused && fsa->warn) {
+		printk(KERN_WARNING "Symbol %s is marked as UNUSED, "
+		       "however this module is using it.\n", fsa->name);
+		printk(KERN_WARNING
+		       "This symbol will go away in the future.\n");
+		printk(KERN_WARNING
+		       "Please evalute if this is the right api to use and if "
+		       "it really is, submit a report the linux kernel "
+		       "mailinglist together with submitting your code for "
+		       "inclusion.\n");
+	}
+#endif
+
+	fsa->owner = owner;
+	fsa->crc = symversion(syms->crcs, symnum);
+	fsa->value = syms->start[symnum].value;
+	return true;
+}
+
+/* Find a symbol, return value, (optional) crc and (optional) module
+ * which owns it */
+static unsigned long find_symbol(const char *name,
+				 struct module **owner,
+				 const unsigned long **crc,
+				 bool gplok,
+				 bool warn)
+{
+	struct find_symbol_arg fsa;
+
+	fsa.name = name;
+	fsa.gplok = gplok;
+	fsa.warn = warn;
+
+	if (each_symbol(find_symbol_in_section, &fsa)) {
+		if (owner)
+			*owner = fsa.owner;
+		if (crc)
+			*crc = fsa.crc;
+		return fsa.value;
+	}
+
 	DEBUGP("Failed to find symbol %s\n", name);
 	return -ENOENT;
 }
@@ -655,7 +680,7 @@ static int try_stop_module(struct module *mod, int flags, int *forced)
 	if (flags & O_NONBLOCK) {
 		struct stopref sref = { mod, flags, forced };
 
-		return stop_machine_run(__try_stop_module, &sref, NR_CPUS);
+		return stop_machine(__try_stop_module, &sref, NULL);
 	} else {
 		/* We don't need to stop the machine for this. */
 		mod->state = MODULE_STATE_GOING;
@@ -761,6 +786,7 @@ sys_delete_module(const char __user *name_user, unsigned int flags)
 	mutex_lock(&module_mutex);
 	/* Store the name of the last unloaded module for diagnostic purposes */
 	strlcpy(last_unloaded_module, mod->name, sizeof(last_unloaded_module));
+	unregister_dynamic_debug_module(mod->name);
 	free_module(mod);
 
  out:
@@ -900,7 +926,7 @@ static const char vermagic[] = VERMAGIC_STRING;
 static int try_to_force_load(struct module *mod, const char *symname)
 {
 #ifdef CONFIG_MODULE_FORCE_LOAD
-	if (!(tainted & TAINT_FORCED_MODULE))
+	if (!test_taint(TAINT_FORCED_MODULE))
 		printk("%s: no version for \"%s\" found: kernel tainted.\n",
 		       mod->name, symname);
 	add_taint_module(mod, TAINT_FORCED_MODULE);
@@ -1010,7 +1036,7 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
 	const unsigned long *crc;
 
 	ret = find_symbol(name, &owner, &crc,
-			  !(mod->taints & TAINT_PROPRIETARY_MODULE), true);
+			  !(mod->taints & (1 << TAINT_PROPRIETARY_MODULE)), true);
 	if (!IS_ERR_VALUE(ret)) {
 		/* use_module can fail due to OOM,
 		   or module initialization or unloading */
@@ -1150,7 +1176,7 @@ static void free_notes_attrs(struct module_notes_attrs *notes_attrs,
 		while (i-- > 0)
 			sysfs_remove_bin_file(notes_attrs->dir,
 					      &notes_attrs->attrs[i]);
-		kobject_del(notes_attrs->dir);
+		kobject_put(notes_attrs->dir);
 	}
 	kfree(notes_attrs);
 }
@@ -1393,7 +1419,7 @@ static int __unlink_module(void *_mod)
 static void free_module(struct module *mod)
 {
 	/* Delete from various lists */
-	stop_machine_run(__unlink_module, mod, NR_CPUS);
+	stop_machine(__unlink_module, mod, NULL);
 	remove_notes_attrs(mod);
 	remove_sect_attrs(mod);
 	mod_kobject_remove(mod);
@@ -1406,6 +1432,9 @@ static void free_module(struct module *mod)
 	/* Module unload stuff */
 	module_unload_free(mod);
 
+	/* release any pointers to mcount in this module */
+	ftrace_release(mod->module_core, mod->core_size);
+
 	/* This may be NULL, but that's OK */
 	module_free(mod, mod->module_init);
 	kfree(mod->args);
@@ -1452,8 +1481,10 @@ static int verify_export_symbols(struct module *mod)
 		{ mod->syms, mod->num_syms },
 		{ mod->gpl_syms, mod->num_gpl_syms },
 		{ mod->gpl_future_syms, mod->num_gpl_future_syms },
+#ifdef CONFIG_UNUSED_SYMBOLS
 		{ mod->unused_syms, mod->num_unused_syms },
 		{ mod->unused_gpl_syms, mod->num_unused_gpl_syms },
+#endif
 	};
 
 	for (i = 0; i < ARRAY_SIZE(arr); i++) {
@@ -1533,7 +1564,7 @@ static int simplify_symbols(Elf_Shdr *sechdrs,
 }
 
 /* Update size with this section: return offset. */
-static long get_offset(unsigned long *size, Elf_Shdr *sechdr)
+static long get_offset(unsigned int *size, Elf_Shdr *sechdr)
 {
 	long ret;
 
@@ -1609,7 +1640,7 @@ static void set_license(struct module *mod, const char *license)
 		license = "unspecified";
 
 	if (!license_is_gpl_compatible(license)) {
-		if (!(tainted & TAINT_PROPRIETARY_MODULE))
+		if (!test_taint(TAINT_PROPRIETARY_MODULE))
 			printk(KERN_WARNING "%s: module license '%s' taints "
 				"kernel.\n", mod->name, license);
 		add_taint_module(mod, TAINT_PROPRIETARY_MODULE);
@@ -1666,6 +1697,19 @@ static void setup_modinfo(struct module *mod, Elf_Shdr *sechdrs,
 }
 
 #ifdef CONFIG_KALLSYMS
+
+/* lookup symbol in given range of kernel_symbols */
+static const struct kernel_symbol *lookup_symbol(const char *name,
+	const struct kernel_symbol *start,
+	const struct kernel_symbol *stop)
+{
+	const struct kernel_symbol *ks = start;
+	for (; ks < stop; ks++)
+		if (strcmp(ks->name, name) == 0)
+			return ks;
+	return NULL;
+}
+
 static int is_exported(const char *name, const struct module *mod)
 {
 	if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))
@@ -1745,15 +1789,57 @@ static inline void add_kallsyms(struct module *mod,
 }
 #endif /* CONFIG_KALLSYMS */
 
+#ifdef CONFIG_DYNAMIC_PRINTK_DEBUG
+static void dynamic_printk_setup(Elf_Shdr *sechdrs, unsigned int verboseindex)
+{
+	struct mod_debug *debug_info;
+	unsigned long pos, end;
+	unsigned int num_verbose;
+
+	pos = sechdrs[verboseindex].sh_addr;
+	num_verbose = sechdrs[verboseindex].sh_size /
+				sizeof(struct mod_debug);
+	end = pos + (num_verbose * sizeof(struct mod_debug));
+
+	for (; pos < end; pos += sizeof(struct mod_debug)) {
+		debug_info = (struct mod_debug *)pos;
+		register_dynamic_debug_module(debug_info->modname,
+			debug_info->type, debug_info->logical_modname,
+			debug_info->flag_names, debug_info->hash,
+			debug_info->hash2);
+	}
+}
+#else
+static inline void dynamic_printk_setup(Elf_Shdr *sechdrs,
+					unsigned int verboseindex)
+{
+}
+#endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */
+
+static void *module_alloc_update_bounds(unsigned long size)
+{
+	void *ret = module_alloc(size);
+
+	if (ret) {
+		/* Update module bounds. */
+		if ((unsigned long)ret < module_addr_min)
+			module_addr_min = (unsigned long)ret;
+		if ((unsigned long)ret + size > module_addr_max)
+			module_addr_max = (unsigned long)ret + size;
+	}
+	return ret;
+}
+
 /* Allocate and load the module: note that size of section 0 is always
    zero, and we rely on this for optional sections. */
-static struct module *load_module(void __user *umod,
+static noinline struct module *load_module(void __user *umod,
 				  unsigned long len,
 				  const char __user *uargs)
 {
 	Elf_Ehdr *hdr;
 	Elf_Shdr *sechdrs;
 	char *secstrings, *args, *modmagic, *strtab = NULL;
+	char *staging;
 	unsigned int i;
 	unsigned int symindex = 0;
 	unsigned int strindex = 0;
@@ -1771,15 +1857,22 @@ static struct module *load_module(void __user *umod,
 	unsigned int gplfutureindex;
 	unsigned int gplfuturecrcindex;
 	unsigned int unwindex = 0;
+#ifdef CONFIG_UNUSED_SYMBOLS
 	unsigned int unusedindex;
 	unsigned int unusedcrcindex;
 	unsigned int unusedgplindex;
 	unsigned int unusedgplcrcindex;
+#endif
 	unsigned int markersindex;
 	unsigned int markersstringsindex;
+	unsigned int verboseindex;
+	unsigned int tracepointsindex;
+	unsigned int tracepointsstringsindex;
+	unsigned int mcountindex;
 	struct module *mod;
 	long err = 0;
 	void *percpu = NULL, *ptr = NULL; /* Stops spurious gcc warning */
+	void *mseg;
 	struct exception_table_entry *extable;
 	mm_segment_t old_fs;
 
@@ -1857,13 +1950,15 @@ static struct module *load_module(void __user *umod,
 	exportindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab");
 	gplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl");
 	gplfutureindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_gpl_future");
-	unusedindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused");
-	unusedgplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused_gpl");
 	crcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab");
 	gplcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl");
 	gplfuturecrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_gpl_future");
+#ifdef CONFIG_UNUSED_SYMBOLS
+	unusedindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused");
+	unusedgplindex = find_sec(hdr, sechdrs, secstrings, "__ksymtab_unused_gpl");
 	unusedcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_unused");
 	unusedgplcrcindex = find_sec(hdr, sechdrs, secstrings, "__kcrctab_unused_gpl");
+#endif
 	setupindex = find_sec(hdr, sechdrs, secstrings, "__param");
 	exindex = find_sec(hdr, sechdrs, secstrings, "__ex_table");
 	obsparmindex = find_sec(hdr, sechdrs, secstrings, "__obsparm");
@@ -1904,6 +1999,14 @@ static struct module *load_module(void __user *umod,
 		goto free_hdr;
 	}
 
+	staging = get_modinfo(sechdrs, infoindex, "staging");
+	if (staging) {
+		add_taint_module(mod, TAINT_CRAP);
+		printk(KERN_WARNING "%s: module is from the staging directory,"
+		       " the quality is unknown, you have been warned.\n",
+		       mod->name);
+	}
+
 	/* Now copy in args */
 	args = strndup_user(uargs, ~0UL >> 1);
 	if (IS_ERR(args)) {
@@ -1942,7 +2045,7 @@ static struct module *load_module(void __user *umod,
 	layout_sections(mod, hdr, sechdrs, secstrings);
 
 	/* Do the allocs. */
-	ptr = module_alloc(mod->core_size);
+	ptr = module_alloc_update_bounds(mod->core_size);
 	if (!ptr) {
 		err = -ENOMEM;
 		goto free_percpu;
@@ -1950,7 +2053,7 @@ static struct module *load_module(void __user *umod,
 	memset(ptr, 0, mod->core_size);
 	mod->module_core = ptr;
 
-	ptr = module_alloc(mod->init_size);
+	ptr = module_alloc_update_bounds(mod->init_size);
 	if (!ptr && mod->init_size) {
 		err = -ENOMEM;
 		goto free_core;
@@ -2025,14 +2128,15 @@ static struct module *load_module(void __user *umod,
 		mod->gpl_crcs = (void *)sechdrs[gplcrcindex].sh_addr;
 	mod->num_gpl_future_syms = sechdrs[gplfutureindex].sh_size /
 					sizeof(*mod->gpl_future_syms);
-	mod->num_unused_syms = sechdrs[unusedindex].sh_size /
-					sizeof(*mod->unused_syms);
-	mod->num_unused_gpl_syms = sechdrs[unusedgplindex].sh_size /
-					sizeof(*mod->unused_gpl_syms);
 	mod->gpl_future_syms = (void *)sechdrs[gplfutureindex].sh_addr;
 	if (gplfuturecrcindex)
 		mod->gpl_future_crcs = (void *)sechdrs[gplfuturecrcindex].sh_addr;
 
+#ifdef CONFIG_UNUSED_SYMBOLS
+	mod->num_unused_syms = sechdrs[unusedindex].sh_size /
+					sizeof(*mod->unused_syms);
+	mod->num_unused_gpl_syms = sechdrs[unusedgplindex].sh_size /
+					sizeof(*mod->unused_gpl_syms);
 	mod->unused_syms = (void *)sechdrs[unusedindex].sh_addr;
 	if (unusedcrcindex)
 		mod->unused_crcs = (void *)sechdrs[unusedcrcindex].sh_addr;
@@ -2040,13 +2144,17 @@ static struct module *load_module(void __user *umod,
 	if (unusedgplcrcindex)
 		mod->unused_gpl_crcs
 			= (void *)sechdrs[unusedgplcrcindex].sh_addr;
+#endif
 
 #ifdef CONFIG_MODVERSIONS
-	if ((mod->num_syms && !crcindex) ||
-	    (mod->num_gpl_syms && !gplcrcindex) ||
-	    (mod->num_gpl_future_syms && !gplfuturecrcindex) ||
-	    (mod->num_unused_syms && !unusedcrcindex) ||
-	    (mod->num_unused_gpl_syms && !unusedgplcrcindex)) {
+	if ((mod->num_syms && !crcindex)
+	    || (mod->num_gpl_syms && !gplcrcindex)
+	    || (mod->num_gpl_future_syms && !gplfuturecrcindex)
+#ifdef CONFIG_UNUSED_SYMBOLS
+	    || (mod->num_unused_syms && !unusedcrcindex)
+	    || (mod->num_unused_gpl_syms && !unusedgplcrcindex)
+#endif
+		) {
 		printk(KERN_WARNING "%s: No versions for exported symbols.\n", mod->name);
 		err = try_to_force_load(mod, "nocrc");
 		if (err)
@@ -2056,6 +2164,13 @@ static struct module *load_module(void __user *umod,
 	markersindex = find_sec(hdr, sechdrs, secstrings, "__markers");
  	markersstringsindex = find_sec(hdr, sechdrs, secstrings,
 					"__markers_strings");
+	verboseindex = find_sec(hdr, sechdrs, secstrings, "__verbose");
+	tracepointsindex = find_sec(hdr, sechdrs, secstrings, "__tracepoints");
+	tracepointsstringsindex = find_sec(hdr, sechdrs, secstrings,
+					"__tracepoints_strings");
+
+	mcountindex = find_sec(hdr, sechdrs, secstrings,
+			       "__mcount_loc");
 
 	/* Now do relocations. */
 	for (i = 1; i < hdr->e_shnum; i++) {
@@ -2083,6 +2198,12 @@ static struct module *load_module(void __user *umod,
 	mod->num_markers =
 		sechdrs[markersindex].sh_size / sizeof(*mod->markers);
 #endif
+#ifdef CONFIG_TRACEPOINTS
+	mod->tracepoints = (void *)sechdrs[tracepointsindex].sh_addr;
+	mod->num_tracepoints =
+		sechdrs[tracepointsindex].sh_size / sizeof(*mod->tracepoints);
+#endif
+
 
         /* Find duplicate symbols */
 	err = verify_export_symbols(mod);
@@ -2101,11 +2222,22 @@ static struct module *load_module(void __user *umod,
 
 	add_kallsyms(mod, sechdrs, symindex, strindex, secstrings);
 
+	if (!mod->taints) {
 #ifdef CONFIG_MARKERS
-	if (!mod->taints)
 		marker_update_probe_range(mod->markers,
 			mod->markers + mod->num_markers);
 #endif
+	dynamic_printk_setup(sechdrs, verboseindex);
+#ifdef CONFIG_TRACEPOINTS
+		tracepoint_update_probe_range(mod->tracepoints,
+			mod->tracepoints + mod->num_tracepoints);
+#endif
+	}
+
+	/* sechdrs[0].sh_size is always zero */
+	mseg = (void *)sechdrs[mcountindex].sh_addr;
+	ftrace_init_module(mseg, mseg + sechdrs[mcountindex].sh_size);
+
 	err = module_finalize(hdr, sechdrs, mod);
 	if (err < 0)
 		goto cleanup;
@@ -2136,7 +2268,7 @@ static struct module *load_module(void __user *umod,
 	/* Now sew it into the lists so we can get lockdep and oops
          * info during argument parsing.  Noone should access us, since
          * strong_try_module_get() will fail. */
-	stop_machine_run(__link_module, mod, NR_CPUS);
+	stop_machine(__link_module, mod, NULL);
 
 	/* Size of section 0 is 0, so this works well if no params */
 	err = parse_args(mod->name, mod->args,
@@ -2170,11 +2302,12 @@ static struct module *load_module(void __user *umod,
 	return mod;
 
  unlink:
-	stop_machine_run(__unlink_module, mod, NR_CPUS);
+	stop_machine(__unlink_module, mod, NULL);
 	module_arch_cleanup(mod);
  cleanup:
 	kobject_del(&mod->mkobj.kobj);
 	kobject_put(&mod->mkobj.kobj);
+	ftrace_release(mod->module_core, mod->core_size);
  free_unload:
 	module_unload_free(mod);
 	module_free(mod, mod->module_init);
@@ -2227,7 +2360,7 @@ sys_init_module(void __user *umod,
 
 	/* Start the module */
 	if (mod->init != NULL)
-		ret = mod->init();
+		ret = do_one_initcall(mod->init);
 	if (ret < 0) {
 		/* Init routine failed: abort.  Try to protect us from
                    buggy refcounters. */
@@ -2491,10 +2624,12 @@ static char *module_flags(struct module *mod, char *buf)
 	    mod->state == MODULE_STATE_GOING ||
 	    mod->state == MODULE_STATE_COMING) {
 		buf[bx++] = '(';
-		if (mod->taints & TAINT_PROPRIETARY_MODULE)
+		if (mod->taints & (1 << TAINT_PROPRIETARY_MODULE))
 			buf[bx++] = 'P';
-		if (mod->taints & TAINT_FORCED_MODULE)
+		if (mod->taints & (1 << TAINT_FORCED_MODULE))
 			buf[bx++] = 'F';
+		if (mod->taints & (1 << TAINT_CRAP))
+			buf[bx++] = 'C';
 		/*
 		 * TAINT_FORCED_RMMOD: could be added.
 		 * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
@@ -2519,7 +2654,7 @@ static int m_show(struct seq_file *m, void *p)
 	struct module *mod = list_entry(p, struct module, list);
 	char buf[8];
 
-	seq_printf(m, "%s %lu",
+	seq_printf(m, "%s %u",
 		   mod->name, mod->init_size + mod->core_size);
 	print_unload_info(m, mod);
 
@@ -2602,6 +2737,9 @@ struct module *__module_text_address(unsigned long addr)
 {
 	struct module *mod;
 
+	if (addr < module_addr_min || addr > module_addr_max)
+		return NULL;
+
 	list_for_each_entry(mod, &modules, list)
 		if (within(addr, mod->module_init, mod->init_text_size)
 		    || within(addr, mod->module_core, mod->core_text_size))
@@ -2653,3 +2791,50 @@ void module_update_markers(void)
 	mutex_unlock(&module_mutex);
 }
 #endif
+
+#ifdef CONFIG_TRACEPOINTS
+void module_update_tracepoints(void)
+{
+	struct module *mod;
+
+	mutex_lock(&module_mutex);
+	list_for_each_entry(mod, &modules, list)
+		if (!mod->taints)
+			tracepoint_update_probe_range(mod->tracepoints,
+				mod->tracepoints + mod->num_tracepoints);
+	mutex_unlock(&module_mutex);
+}
+
+/*
+ * Returns 0 if current not found.
+ * Returns 1 if current found.
+ */
+int module_get_iter_tracepoints(struct tracepoint_iter *iter)
+{
+	struct module *iter_mod;
+	int found = 0;
+
+	mutex_lock(&module_mutex);
+	list_for_each_entry(iter_mod, &modules, list) {
+		if (!iter_mod->taints) {
+			/*
+			 * Sorted module list
+			 */
+			if (iter_mod < iter->module)
+				continue;
+			else if (iter_mod > iter->module)
+				iter->tracepoint = NULL;
+			found = tracepoint_get_iter_range(&iter->tracepoint,
+				iter_mod->tracepoints,
+				iter_mod->tracepoints
+					+ iter_mod->num_tracepoints);
+			if (found) {
+				iter->module = iter_mod;
+				break;
+			}
+		}
+	}
+	mutex_unlock(&module_mutex);
+	return found;
+}
+#endif