kconfig: Avoid format overflow warning from GCC 8.1
PATCH 1/1 kconfig: Avoid format overflow warning from GCC 8.1
cherry-pick kernel commit 2ae89c7 (2018-06-05)
to avoid warnings when compiling with GCC 8.1
In file included from scripts/kconfig/zconf.tab.c:2486:scripts/kconfig/confdata.c: In function ‘conf_write’:scripts/kconfig/confdata.c:771:22: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(newname, "%s%s", dirname, basename);
^~
scripts/kconfig/confdata.c:771:19: note: assuming directive output of 7 bytes
sprintf(newname, "%s%s", dirname, basename);
^~~~~~scripts/kconfig/confdata.c:771:2: note: ‘sprintf’ output 1 or more bytes (assuming 4104) into a destination of size 4097
sprintf(newname, "%s%s", dirname, basename);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~scripts/kconfig/confdata.c:774:23: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
^~~~~~~~~~~scripts/kconfig/confdata.c:774:3: note: ‘sprintf’ output between 13 and 4119 bytes into a destination of size 4097
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--- scripts/kconfig/confdata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
scripts/kconfig/confdata.c +1 -1
@@ -743,7 +743,7 @@ int conf_write(const char *name)struct menu *menu;const char *basename;const char *str; -char dirname[PATH_MAX +1 ], tmpname[PATH_MAX +1 ], newname[PATH_MAX +1 ]; +char dirname[PATH_MAX +1 ], tmpname[PATH_MAX +22 ], newname[PATH_MAX +8 ];char *env; dirname[0 ] =0 ;
Signature · 1 line
2.18.0
PATCH 1/1 kconfig: Avoid format overflow warning from GCC 8.1
2018-07-06 5:55 GMT+09:00 Luis Araneda <[email protected]>:
Quoted 15 lines
cherry-pick kernel commit 2ae89c7 (2018-06-05)
to avoid warnings when compiling with GCC 8.1In file included from
scripts/kconfig/zconf.tab.c:2486:scripts/kconfig/confdata.c: In function ‘conf_write’:scripts/kconfig/confdata.c:771:22: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]sprintf(newname, "%s%s", dirname, basename); ^~ scripts/kconfig/confdata.c:771:19: note: assuming directive output of 7 bytes sprintf(newname, "%s%s", dirname, basename); ^~~~~~
scripts/kconfig/confdata.c:771:2: note: ‘sprintf’ output 1 or more bytes (assuming 4104) into a destination of size 4097
sprintf(newname, "%s%s", dirname, basename);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~scripts/kconfig/confdata.c:774:23: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
Quoted 8 lines
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); ^~~~~~~~~~~ scripts/kconfig/confdata.c:774:3: note: ‘sprintf’ output between 13 and 4119 bytes into a destination of size 4097 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Signed-off-by Luis Araneda <[email protected]>---
Applied to u-boot-uniphier.
Quoted 23 lines
scripts/kconfig/confdata.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)scripts/kconfig/confdata.c +1
-2@@ -743,7 +743,7 @@ int conf_write(const char *name)struct menu *menu;const char *basename;const char *str; -char dirname[PATH_MAX +1 ], tmpname[PATH_MAX +1 ], newname[PATH_MAX +1 ]; +char dirname[PATH_MAX +1 ], tmpname[PATH_MAX +22 ], newname[PATH_MAX +8 ];char *env; dirname[0 ] =0 ; --2.18.0
_______________________________________________
U-Boot mailing list
U-Boot at lists.denx.de
https://lists.denx.de/listinfo/u-boot
Signature · 2 lines
Best Regards Masahiro Yamada