[Buildroot] [PATCH 1/2] linux: introduce LINUX_KCFLAGS to add additional options to the C compiler
Romain Naour
romain.naour at gmail.com
Sat Sep 26 19:13:29 UTC 2020
Since 9a50447b5d4b2ab0162e3235395ab9a4c8a647d5 KCFLAGS is set
to disable a compiler warning but doesn't allow to provide
more flags.
This refactoring introduce LINUX_KCFLAGS to provide more
options to the C compiler.
Signed-off-by: Romain Naour <romain.naour at gmail.com>
---
linux/linux.mk | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/linux/linux.mk b/linux/linux.mk
index e07e014d1e..b9b223e3f3 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -71,7 +71,8 @@ LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES))
# host-pkgconf will look for host libraries and not target ones.
LINUX_MAKE_ENV = \
$(HOST_MAKE_ENV) \
- BR_BINARIES_DIR=$(BINARIES_DIR)
+ BR_BINARIES_DIR=$(BINARIES_DIR) \
+ KCFLAGS="$(LINUX_KCFLAGS)"
LINUX_INSTALL_IMAGES = YES
LINUX_DEPENDENCIES = host-kmod \
@@ -154,7 +155,7 @@ endif
# sanitize the arguments passed from user space in registers.
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82435
ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_8),y)
-LINUX_MAKE_ENV += KCFLAGS=-Wno-attribute-alias
+LINUX_KCFLAGS += -Wno-attribute-alias
endif
ifeq ($(BR2_LINUX_KERNEL_DTB_OVERLAY_SUPPORT),y)
--
2.25.4
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