UPSTREAM: gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
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 downgrade the compiler to 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@socionext.com>
Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
(cherry picked from commit 6a61b70b43c9c4cbc7314bf6c8b5ba8b0d6e1e7b)
Bug: 132997968
Test: defconfig + CONFIG_GCOV_KERNEL records coverage
Change-Id: I95820233098507e80d846759e32abeead2580a32
2 files changed