* split the CFLAGS_GCOV block out of the top-level Makefile into
scripts/Makefile.gcov
* include it via include-$(CONFIG_GCOV_KERNEL) like neighbour
KASAN/KCOV/UBSAN makefiles do
* keep the include before scripts/Makefile.gcc-plugins: the try-run
must not get -fplugin= options, plugins do not exist on clean builds
CFLAGS_GCOV is no longer defined when CONFIG_GCOV_KERNEL is off:
* its user in scripts/Makefile.lib is guarded by the CONFIG_GCOV_KERNEL
* in i915/xe header an empty value is harmless
The try-run compiler invocations also stop running on builds without
GCOV.
Link: https://lore.kernel.org/20261001-b4-prep-gcov-v1-2-794792e06f24@virtuozzo.com
Signed-off-by: Konstantin Khorenko <khorenko@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nicolas Schier <nsc@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mikhail Zaslonko <zaslonko@linux.ibm.com>
