diff options
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/kernel/module.c b/kernel/module.c index 35f7de00bf0d..0a049837008e 100644 --- a/kernel/module.c +++ b/kernel/module.c | |||
| @@ -2216,6 +2216,10 @@ static noinline struct module *load_module(void __user *umod, | |||
| 2216 | mod->unused_gpl_crcs = section_addr(hdr, sechdrs, secstrings, | 2216 | mod->unused_gpl_crcs = section_addr(hdr, sechdrs, secstrings, |
| 2217 | "__kcrctab_unused_gpl"); | 2217 | "__kcrctab_unused_gpl"); |
| 2218 | #endif | 2218 | #endif |
| 2219 | #ifdef CONFIG_CONSTRUCTORS | ||
| 2220 | mod->ctors = section_objs(hdr, sechdrs, secstrings, ".ctors", | ||
| 2221 | sizeof(*mod->ctors), &mod->num_ctors); | ||
| 2222 | #endif | ||
| 2219 | 2223 | ||
| 2220 | #ifdef CONFIG_MARKERS | 2224 | #ifdef CONFIG_MARKERS |
| 2221 | mod->markers = section_objs(hdr, sechdrs, secstrings, "__markers", | 2225 | mod->markers = section_objs(hdr, sechdrs, secstrings, "__markers", |
| @@ -2389,6 +2393,17 @@ static noinline struct module *load_module(void __user *umod, | |||
| 2389 | goto free_hdr; | 2393 | goto free_hdr; |
| 2390 | } | 2394 | } |
| 2391 | 2395 | ||
| 2396 | /* Call module constructors. */ | ||
| 2397 | static void do_mod_ctors(struct module *mod) | ||
| 2398 | { | ||
| 2399 | #ifdef CONFIG_CONSTRUCTORS | ||
| 2400 | unsigned long i; | ||
| 2401 | |||
| 2402 | for (i = 0; i < mod->num_ctors; i++) | ||
| 2403 | mod->ctors[i](); | ||
| 2404 | #endif | ||
| 2405 | } | ||
| 2406 | |||
| 2392 | /* This is where the real work happens */ | 2407 | /* This is where the real work happens */ |
| 2393 | SYSCALL_DEFINE3(init_module, void __user *, umod, | 2408 | SYSCALL_DEFINE3(init_module, void __user *, umod, |
| 2394 | unsigned long, len, const char __user *, uargs) | 2409 | unsigned long, len, const char __user *, uargs) |
| @@ -2417,6 +2432,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, | |||
| 2417 | blocking_notifier_call_chain(&module_notify_list, | 2432 | blocking_notifier_call_chain(&module_notify_list, |
| 2418 | MODULE_STATE_COMING, mod); | 2433 | MODULE_STATE_COMING, mod); |
| 2419 | 2434 | ||
| 2435 | do_mod_ctors(mod); | ||
| 2420 | /* Start the module */ | 2436 | /* Start the module */ |
| 2421 | if (mod->init != NULL) | 2437 | if (mod->init != NULL) |
| 2422 | ret = do_one_initcall(mod->init); | 2438 | ret = do_one_initcall(mod->init); |
| @@ -2435,9 +2451,9 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, | |||
| 2435 | return ret; | 2451 | return ret; |
| 2436 | } | 2452 | } |
| 2437 | if (ret > 0) { | 2453 | if (ret > 0) { |
| 2438 | printk(KERN_WARNING "%s: '%s'->init suspiciously returned %d, " | 2454 | printk(KERN_WARNING |
| 2439 | "it should follow 0/-E convention\n" | 2455 | "%s: '%s'->init suspiciously returned %d, it should follow 0/-E convention\n" |
| 2440 | KERN_WARNING "%s: loading module anyway...\n", | 2456 | "%s: loading module anyway...\n", |
| 2441 | __func__, mod->name, ret, | 2457 | __func__, mod->name, ret, |
| 2442 | __func__); | 2458 | __func__); |
| 2443 | dump_stack(); | 2459 | dump_stack(); |
| @@ -2455,6 +2471,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, | |||
| 2455 | mutex_lock(&module_mutex); | 2471 | mutex_lock(&module_mutex); |
| 2456 | /* Drop initial reference. */ | 2472 | /* Drop initial reference. */ |
| 2457 | module_put(mod); | 2473 | module_put(mod); |
| 2474 | trim_init_extable(mod); | ||
| 2458 | module_free(mod, mod->module_init); | 2475 | module_free(mod, mod->module_init); |
| 2459 | mod->module_init = NULL; | 2476 | mod->module_init = NULL; |
| 2460 | mod->init_size = 0; | 2477 | mod->init_size = 0; |
| @@ -2898,7 +2915,7 @@ void print_modules(void) | |||
| 2898 | struct module *mod; | 2915 | struct module *mod; |
| 2899 | char buf[8]; | 2916 | char buf[8]; |
| 2900 | 2917 | ||
| 2901 | printk("Modules linked in:"); | 2918 | printk(KERN_DEFAULT "Modules linked in:"); |
| 2902 | /* Most callers should already have preempt disabled, but make sure */ | 2919 | /* Most callers should already have preempt disabled, but make sure */ |
| 2903 | preempt_disable(); | 2920 | preempt_disable(); |
| 2904 | list_for_each_entry_rcu(mod, &modules, list) | 2921 | list_for_each_entry_rcu(mod, &modules, list) |
