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| author | Vincent Whitchurch <vincent.whitchurch@axis.com> | 2018-12-14 19:05:54 +0300 |
|---|---|---|
| committer | Jessica Yu <jeyu@kernel.org> | 2018-12-14 22:27:21 +0300 |
| commit | 5439c985c5a83a8419f762115afdf560ab72a452 (patch) | |
| tree | 78e646e94cda55489bebe347421ff708a71738fe /kernel/module.c | |
| parent | 2d25bc55235314d869459c574be14e8faa73aca3 (diff) | |
| download | linux-5439c985c5a83a8419f762115afdf560ab72a452.tar.xz | |
module: Overwrite st_size instead of st_info
st_info is currently overwritten after relocation and used to store the
elf_type(). However, we're going to need it fix kallsyms on ARM's
Thumb-2 kernels, so preserve st_info and overwrite the st_size field
instead. st_size is neither used by the module core nor by any
architecture.
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/module.c b/kernel/module.c index 1b5edf78694c..b36ff8a3d562 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2684,7 +2684,7 @@ static void add_kallsyms(struct module *mod, const struct load_info *info) /* Set types up while we still have access to sections. */ for (i = 0; i < mod->kallsyms->num_symtab; i++) - mod->kallsyms->symtab[i].st_info + mod->kallsyms->symtab[i].st_size = elf_type(&mod->kallsyms->symtab[i], info); /* Now populate the cut down core kallsyms for after init. */ @@ -4070,7 +4070,7 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type, kallsyms = rcu_dereference_sched(mod->kallsyms); if (symnum < kallsyms->num_symtab) { *value = kallsyms->symtab[symnum].st_value; - *type = kallsyms->symtab[symnum].st_info; + *type = kallsyms->symtab[symnum].st_size; strlcpy(name, kallsyms_symbol_name(kallsyms, symnum), KSYM_NAME_LEN); strlcpy(module_name, mod->name, MODULE_NAME_LEN); *exported = is_exported(name, *value, mod); |