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->mem[MOD_TEXT].size);
30 kdb_printf("/%8u", mod->mem[MOD_RODATA].size);
31 kdb_printf("/%8u", mod->mem[MOD_RO_AFTER_INIT].size);
32 kdb_printf("/%8u", mod->mem[MOD_DATA].size);
33
34 kdb_printf(" 0x%px ", (void *)mod);
35 #ifdef CONFIG_MODULE_UNLOAD
36 kdb_printf("%4d ", module_refcount(mod));
37 #endif
38 if (mod->state == MODULE_STATE_GOING)
39 kdb_printf(" (Unloading)");
40 else if (mod->state == MODULE_STATE_COMING)
41 kdb_printf(" (Loading)");
42 else
43 kdb_printf(" (Live)");
44 kdb_printf(" 0x%px", mod->mem[MOD_TEXT].base);
45 kdb_printf("/0x%px", mod->mem[MOD_RODATA].base);
46 kdb_printf("/0x%px", mod->mem[MOD_RO_AFTER_INIT].base);
47 kdb_printf("/0x%px", mod->mem[MOD_DATA].base);
48
49 #ifdef CONFIG_MODULE_UNLOAD
50 {
51 struct module_use *use;
52
53 kdb_printf(" [ ");
54 list_for_each_entry(use, &mod->source_list,
55 source_list)
56 kdb_printf("%s ", use->target->name);
57 kdb_printf("]\n");
58 }
59 #endif
60 }
61
62 return 0;
63 }
64