1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Module kdb support
4  *
5  * Copyright (C) 2010 Jason Wessel
6  */
7 
8 #include <linux/module.h>
9 #include <linux/kdb.h>
10 #include "internal.h"
11 
12 /*
13  * kdb_lsmod - This function implements the 'lsmod' command.  Lists
14  *	currently loaded kernel modules.
15  *	Mostly taken from userland lsmod.
16  */
kdb_lsmod(int argc,const char ** argv)17 int kdb_lsmod(int argc, const char **argv)
18 {
19 	struct module *mod;
20 
21 	if (argc != 0)
22 		return KDB_ARGCOUNT;
23 
24 	kdb_printf("Module                  Size  modstruct     Used by\n");
25 	list_for_each_entry(mod, &modules, list) {
26 		if (mod->state == MODULE_STATE_UNFORMED)
27 			continue;
28 
29 		kdb_printf("%-20s%8u", mod->name, mod->core_layout.size);
30 #ifdef CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC
31 		kdb_printf("/%8u", mod->data_layout.size);
32 #endif
33 		kdb_printf("  0x%px ", (void *)mod);
34 #ifdef CONFIG_MODULE_UNLOAD
35 		kdb_printf("%4d ", module_refcount(mod));
36 #endif
37 		if (mod->state == MODULE_STATE_GOING)
38 			kdb_printf(" (Unloading)");
39 		else if (mod->state == MODULE_STATE_COMING)
40 			kdb_printf(" (Loading)");
41 		else
42 			kdb_printf(" (Live)");
43 		kdb_printf(" 0x%px", mod->core_layout.base);
44 #ifdef CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC
45 		kdb_printf("/0x%px", mod->data_layout.base);
46 #endif
47 
48 #ifdef CONFIG_MODULE_UNLOAD
49 		{
50 			struct module_use *use;
51 
52 			kdb_printf(" [ ");
53 			list_for_each_entry(use, &mod->source_list,
54 					    source_list)
55 				kdb_printf("%s ", use->target->name);
56 			kdb_printf("]\n");
57 		}
58 #endif
59 	}
60 
61 	return 0;
62 }
63