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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-02-17 00:19:36 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-03-02 21:18:19 +0900 |
| commit | a83e4ca26af8fcf1e0d1a3fb681732e239ef5496 (patch) | |
| tree | 87d82ce38b43c0bbee5108630495775305c8f7c9 | |
| parent | f84fdf8df1c15f1e66478340bf0da5449f30a0af (diff) | |
| download | lwn-a83e4ca26af8fcf1e0d1a3fb681732e239ef5496.tar.gz lwn-a83e4ca26af8fcf1e0d1a3fb681732e239ef5496.zip | |
kbuild: remove cc-option switch from -Wframe-larger-than=
This CONFIG option was added by commit 35bb5b1e0e84 ("Add option to
enable -Wframe-larger-than= on gcc 4.4"). At that time, the cc-option
check was needed.
According to Documentation/process/changes.rst, the current minimal
supported version of GCC is 4.6, so you can assume GCC supports it.
Clang supports it as well.
Remove the cc-option switch and redundant comments.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 3 |
2 files changed, 2 insertions, 3 deletions
@@ -729,7 +729,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ endif ifneq ($(CONFIG_FRAME_WARN),0) -KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) +KBUILD_CFLAGS += -Wframe-larger-than=$(CONFIG_FRAME_WARN) endif stackp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 69def4a9df00..fb6b93ffdf77 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -266,7 +266,7 @@ config ENABLE_MUST_CHECK attribute warn_unused_result" messages. config FRAME_WARN - int "Warn for stack frames larger than (needs gcc 4.4)" + int "Warn for stack frames larger than" range 0 8192 default 2048 if GCC_PLUGIN_LATENT_ENTROPY default 1280 if (!64BIT && PARISC) @@ -276,7 +276,6 @@ config FRAME_WARN Tell gcc to warn at build time for stack frames larger than this. Setting this too low will cause a lot of warnings. Setting it to 0 disables the warning. - Requires gcc 4.4 config STRIP_ASM_SYMS bool "Strip assembler-generated symbols during link" |