From: Leon Romanovsky Date: Fri, 4 Sep 2020 15:58:08 +0000 (+0300) Subject: gcov: Disable gcov build with GCC 10 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cfc905f158eaa099d6258031614d11869e7ef71c;p=linux.git gcov: Disable gcov build with GCC 10 GCOV built with GCC 10 doesn't initialize n_function variable. This produces different kernel panics as was seen by Colin in Ubuntu and me in FC 32. As a workaround, let's disable GCOV build for broken GCC 10 version. Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891288 Link: https://lore.kernel.org/lkml/20200827133932.3338519-1-leon@kernel.org Link: https://lore.kernel.org/lkml/CAHk-=whbijeSdSvx-Xcr0DPMj0BiwhJ+uiNnDSVZcr_h_kg7UA@mail.gmail.com/ Cc: Colin Ian King Signed-off-by: Leon Romanovsky Signed-off-by: Linus Torvalds --- diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig index 3110c77230c7f..bb4b680e8455a 100644 --- a/kernel/gcov/Kconfig +++ b/kernel/gcov/Kconfig @@ -4,6 +4,7 @@ menu "GCOV-based kernel profiling" config GCOV_KERNEL bool "Enable gcov-based kernel profiling" depends on DEBUG_FS + depends on !CC_IS_GCC || GCC_VERSION < 100000 select CONSTRUCTORS if !UML default n help