Commit 2eab791f authored Mar 08, 2021 by Jiri Slaby Committed by Masahiro Yamada Mar 11, 2021

kbuild: dummy-tools: support MPROFILE_KERNEL checks for ppc



ppc64le checks for -mprofile-kernel to define MPROFILE_KERNEL Kconfig.
Kconfig calls arch/powerpc/tools/gcc-check-mprofile-kernel.sh for that
purpose. This script performs two checks:
1) build with -mprofile-kernel should contain "_mcount"
2) build with -mprofile-kernel with a function marked as "notrace"
   should not produce "_mcount"

So support this in dummy-tools' gcc, so that we have MPROFILE_KERNEL
always true.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

parent ce6ed1c4

scripts/dummy-tools/gcc

+9 −0

Original line number	Diff line number	Diff line
		@@ -73,6 +73,15 @@ if arg_contain -S "$@"; then
		echo "%gs"
		exit 0
		fi

		# For arch/powerpc/tools/gcc-check-mprofile-kernel.sh
		if arg_contain -m64 "$@" && arg_contain -mlittle-endian "$@" &&
		arg_contain -mprofile-kernel "$@"; then
		if ! test -t 0 && ! grep -q notrace; then
		echo "_mcount"
		fi
		exit 0
		fi
		fi

		# To set GCC_PLUGINS