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-rw-r--r--kernel/kallsyms.c30
-rw-r--r--kernel/module.c12
2 files changed, 22 insertions, 20 deletions
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index d086c91d44ed..f1ea6f66ac6c 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -301,25 +301,20 @@ void __print_symbol(const char *fmt, unsigned long address)
301struct kallsym_iter 301struct kallsym_iter
302{ 302{
303 loff_t pos; 303 loff_t pos;
304 struct module *owner;
305 unsigned long value; 304 unsigned long value;
306 unsigned int nameoff; /* If iterating in core kernel symbols */ 305 unsigned int nameoff; /* If iterating in core kernel symbols */
307 char type; 306 char type;
308 char name[KSYM_NAME_LEN+1]; 307 char name[KSYM_NAME_LEN+1];
308 char module_name[MODULE_NAME_LEN + 1];
309 int exported;
309}; 310};
310 311
311static int get_ksymbol_mod(struct kallsym_iter *iter) 312static int get_ksymbol_mod(struct kallsym_iter *iter)
312{ 313{
313 iter->owner = module_get_kallsym(iter->pos - kallsyms_num_syms, 314 if (module_get_kallsym(iter->pos - kallsyms_num_syms, &iter->value,
314 &iter->value, &iter->type, 315 &iter->type, iter->name, iter->module_name,
315 iter->name); 316 &iter->exported) < 0)
316 if (iter->owner == NULL)
317 return 0; 317 return 0;
318
319 /* Label it "global" if it is exported, "local" if not exported. */
320 iter->type = is_exported(iter->name, iter->owner)
321 ? toupper(iter->type) : tolower(iter->type);
322
323 return 1; 318 return 1;
324} 319}
325 320
@@ -328,7 +323,7 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
328{ 323{
329 unsigned off = iter->nameoff; 324 unsigned off = iter->nameoff;
330 325
331 iter->owner = NULL; 326 iter->module_name[0] = '\0';
332 iter->value = kallsyms_addresses[iter->pos]; 327 iter->value = kallsyms_addresses[iter->pos];
333 328
334 iter->type = kallsyms_get_symbol_type(off); 329 iter->type = kallsyms_get_symbol_type(off);
@@ -392,12 +387,17 @@ static int s_show(struct seq_file *m, void *p)
392 if (!iter->name[0]) 387 if (!iter->name[0])
393 return 0; 388 return 0;
394 389
395 if (iter->owner) 390 if (iter->module_name[0]) {
391 char type;
392
393 /* Label it "global" if it is exported,
394 * "local" if not exported. */
395 type = iter->exported ? toupper(iter->type) :
396 tolower(iter->type);
396 seq_printf(m, "%0*lx %c %s\t[%s]\n", 397 seq_printf(m, "%0*lx %c %s\t[%s]\n",
397 (int)(2*sizeof(void*)), 398 (int)(2*sizeof(void*)),
398 iter->value, iter->type, iter->name, 399 iter->value, type, iter->name, iter->module_name);
399 module_name(iter->owner)); 400 } else
400 else
401 seq_printf(m, "%0*lx %c %s\n", 401 seq_printf(m, "%0*lx %c %s\n",
402 (int)(2*sizeof(void*)), 402 (int)(2*sizeof(void*)),
403 iter->value, iter->type, iter->name); 403 iter->value, iter->type, iter->name);
diff --git a/kernel/module.c b/kernel/module.c
index 43a529a1fa48..5ee65994a3bc 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1472,7 +1472,7 @@ static void setup_modinfo(struct module *mod, Elf_Shdr *sechdrs,
1472} 1472}
1473 1473
1474#ifdef CONFIG_KALLSYMS 1474#ifdef CONFIG_KALLSYMS
1475int is_exported(const char *name, const struct module *mod) 1475static int is_exported(const char *name, const struct module *mod)
1476{ 1476{
1477 if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab)) 1477 if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))
1478 return 1; 1478 return 1;
@@ -2124,8 +2124,8 @@ const char *module_address_lookup(unsigned long addr,
2124 return NULL; 2124 return NULL;
2125} 2125}
2126 2126
2127struct module *module_get_kallsym(unsigned int symnum, unsigned long *value, 2127int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
2128 char *type, char *name) 2128 char *name, char *module_name, int *exported)
2129{ 2129{
2130 struct module *mod; 2130 struct module *mod;
2131 2131
@@ -2136,13 +2136,15 @@ struct module *module_get_kallsym(unsigned int symnum, unsigned long *value,
2136 *type = mod->symtab[symnum].st_info; 2136 *type = mod->symtab[symnum].st_info;
2137 strlcpy(name, mod->strtab + mod->symtab[symnum].st_name, 2137 strlcpy(name, mod->strtab + mod->symtab[symnum].st_name,
2138 KSYM_NAME_LEN + 1); 2138 KSYM_NAME_LEN + 1);
2139 strlcpy(module_name, mod->name, MODULE_NAME_LEN + 1);
2140 *exported = is_exported(name, mod);
2139 mutex_unlock(&module_mutex); 2141 mutex_unlock(&module_mutex);
2140 return mod; 2142 return 0;
2141 } 2143 }
2142 symnum -= mod->num_symtab; 2144 symnum -= mod->num_symtab;
2143 } 2145 }
2144 mutex_unlock(&module_mutex); 2146 mutex_unlock(&module_mutex);
2145 return NULL; 2147 return -ERANGE;
2146} 2148}
2147 2149
2148static unsigned long mod_find_symname(struct module *mod, const char *name) 2150static unsigned long mod_find_symname(struct module *mod, const char *name)