On Mon, Mar 26, 2018 at 10:29 PM, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > CONFIG_GCOV_FORMAT_AUTODETECT compiles either gcc_3_4.c or gcc_4_7.c > according to your GCC version. > > We can achieve the equivalent behavior by setting reasonable dependency > with the knowledge of the compiler version. > > If GCC older than 4.7 is used, GCOV_FORMAT_3_4 is the default, but users > are still allowed to select GCOV_FORMAT_4_7 in case the newer format is > back-ported. > > On the other hand, If GCC 4.7 or newer is used, there is no reason to > use GCOV_FORMAT_3_4, so it should be hidden. > > If you down-grade your compiler GCC 4.7 or older, oldconfig/syncconfig > will display a prompt for the choice because GCOV_FORMAT_3_4 becomes > visible as a new symbol. > > Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -Kees -- Kees Cook Pixel Security -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
