From 844e3cded9c8665e95b1e43b707a6c3adcbc901f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sun, 28 Feb 2016 05:29:16 -0300 Subject: Linux-libre 4.4.3-gnu --- kernel/module.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'kernel/module.c') diff --git a/kernel/module.c b/kernel/module.c index 38c7bd558..14833e6d5 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -3515,7 +3515,7 @@ static int load_module(struct load_info *info, const char __user *uargs, /* Module is ready to execute: parsing args may do that. */ after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp, - -32768, 32767, NULL, + -32768, 32767, mod, unknown_module_param_cb); if (IS_ERR(after_dashes)) { err = PTR_ERR(after_dashes); @@ -3646,6 +3646,11 @@ static inline int is_arm_mapping_symbol(const char *str) && (str[2] == '\0' || str[2] == '.'); } +static const char *symname(struct module *mod, unsigned int symnum) +{ + return mod->strtab + mod->symtab[symnum].st_name; +} + static const char *get_ksymbol(struct module *mod, unsigned long addr, unsigned long *size, @@ -3668,15 +3673,15 @@ static const char *get_ksymbol(struct module *mod, /* We ignore unnamed symbols: they're uninformative * and inserted at a whim. */ + if (*symname(mod, i) == '\0' + || is_arm_mapping_symbol(symname(mod, i))) + continue; + if (mod->symtab[i].st_value <= addr - && mod->symtab[i].st_value > mod->symtab[best].st_value - && *(mod->strtab + mod->symtab[i].st_name) != '\0' - && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name)) + && mod->symtab[i].st_value > mod->symtab[best].st_value) best = i; if (mod->symtab[i].st_value > addr - && mod->symtab[i].st_value < nextval - && *(mod->strtab + mod->symtab[i].st_name) != '\0' - && !is_arm_mapping_symbol(mod->strtab + mod->symtab[i].st_name)) + && mod->symtab[i].st_value < nextval) nextval = mod->symtab[i].st_value; } @@ -3687,7 +3692,7 @@ static const char *get_ksymbol(struct module *mod, *size = nextval - mod->symtab[best].st_value; if (offset) *offset = addr - mod->symtab[best].st_value; - return mod->strtab + mod->symtab[best].st_name; + return symname(mod, best); } /* For kallsyms to ask for address resolution. NULL means not found. Careful @@ -3782,8 +3787,7 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type, if (symnum < mod->num_symtab) { *value = mod->symtab[symnum].st_value; *type = mod->symtab[symnum].st_info; - strlcpy(name, mod->strtab + mod->symtab[symnum].st_name, - KSYM_NAME_LEN); + strlcpy(name, symname(mod, symnum), KSYM_NAME_LEN); strlcpy(module_name, mod->name, MODULE_NAME_LEN); *exported = is_exported(name, *value, mod); preempt_enable(); @@ -3800,7 +3804,7 @@ static unsigned long mod_find_symname(struct module *mod, const char *name) unsigned int i; for (i = 0; i < mod->num_symtab; i++) - if (strcmp(name, mod->strtab+mod->symtab[i].st_name) == 0 && + if (strcmp(name, symname(mod, i)) == 0 && mod->symtab[i].st_info != 'U') return mod->symtab[i].st_value; return 0; @@ -3844,7 +3848,7 @@ int module_kallsyms_on_each_symbol(int (*fn)(void *, const char *, if (mod->state == MODULE_STATE_UNFORMED) continue; for (i = 0; i < mod->num_symtab; i++) { - ret = fn(data, mod->strtab + mod->symtab[i].st_name, + ret = fn(data, symname(mod, i), mod, mod->symtab[i].st_value); if (ret != 0) return ret; -- cgit v1.2.3