[v10,perf,bpf-next,9/9] bpf: add module name [bpf] to ksymbols for bpf programs
diff mbox series

Message ID 20190116162931.1542429-10-songliubraving@fb.com
State Changes Requested
Delegated to: BPF Maintainers
Headers show
Series
  • reveal invisible bpf programs
Related show

Commit Message

Song Liu Jan. 16, 2019, 4:29 p.m. UTC
With this patch, /proc/kallsyms will show BPF programs as

  <addr> t bpf_prog_<tag>_<name> [bpf]

Signed-off-by: Song Liu <songliubraving@fb.com>
---
 kernel/kallsyms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Peter Zijlstra Jan. 17, 2019, 1:10 p.m. UTC | #1
On Wed, Jan 16, 2019 at 08:29:31AM -0800, Song Liu wrote:
> With this patch, /proc/kallsyms will show BPF programs as
> 
>   <addr> t bpf_prog_<tag>_<name> [bpf]
> 
> Signed-off-by: Song Liu <songliubraving@fb.com>

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

> ---
>  kernel/kallsyms.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
> index f3a04994e063..14934afa9e68 100644
> --- a/kernel/kallsyms.c
> +++ b/kernel/kallsyms.c
> @@ -494,7 +494,7 @@ static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
>  
>  static int get_ksymbol_bpf(struct kallsym_iter *iter)
>  {
> -	iter->module_name[0] = '\0';
> +	strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
>  	iter->exported = 0;
>  	return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
>  			       &iter->value, &iter->type,
> -- 
> 2.17.1
>

Patch
diff mbox series

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index f3a04994e063..14934afa9e68 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -494,7 +494,7 @@  static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
 
 static int get_ksymbol_bpf(struct kallsym_iter *iter)
 {
-	iter->module_name[0] = '\0';
+	strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
 	iter->exported = 0;
 	return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
 			       &iter->value, &iter->type,