lkml.org 
[lkml]   [2022]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] objtool: Fix -Wformat-truncation seen with GCC 12.
Hi,

On Wed, 12 Jan 2022, Martin Liška wrote:

> The patch fixes the following warning that seems reasonable:
>
> check.c:2836:58: error: '%d' directive output may be truncated writing between
> 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
> 2836 | snprintf(pvname, sizeof(pvname), "pv_ops[%d]", idx);
>
> Signed-off-by: Martin Liška <mliska@suse.cz>
> ---
> tools/objtool/check.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/objtool/check.c b/tools/objtool/check.c
> index a9a1f7259d62..9555f7ad57cd 100644
> --- a/tools/objtool/check.c
> +++ b/tools/objtool/check.c
> @@ -2852,7 +2852,7 @@ static inline bool func_uaccess_safe(struct symbol
> *func)
>
> static inline const char *call_dest_name(struct instruction *insn)
> {
> - static char pvname[16];
> + static char pvname[20];
> struct reloc *rel;
> int idx;

a similar patch has already been posted (not merged yet though).

https://lore.kernel.org/all/20211223182707.42590-1-kilobyte@angband.pl/

Thanks

Miroslav
\
 
 \ /
  Last update: 2022-01-12 10:42    [W:0.054 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site