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| author | Jiri Slaby <jslaby@suse.cz> | 2021-03-08 07:28:20 +0100 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-03-11 14:40:50 +0900 |
| commit | 2eab791f940b98d0bdd4d1e8c4857f3dec3c7d04 (patch) | |
| tree | fc8a1434ecbf04430320d3f904ff4cab25985a28 | |
| parent | ce6ed1c4c9876c2880f52f18c41ef2a30d070bc5 (diff) | |
| download | lwn-2eab791f940b98d0bdd4d1e8c4857f3dec3c7d04.tar.gz lwn-2eab791f940b98d0bdd4d1e8c4857f3dec3c7d04.zip | |
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>
| -rwxr-xr-x | scripts/dummy-tools/gcc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc index 0d0589cf8184..7b10332b23ba 100755 --- a/scripts/dummy-tools/gcc +++ b/scripts/dummy-tools/gcc @@ -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 |