kbuild: add user-supplied CPPFLAGS, AFLAGS and CFLAGS

Like Linux Kernel, this commit provides environment variables KCPPFLAGS, KAFLAGS and KCFLAGS, which are useful to pass additional options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
10 years ago · 0e6256d077
parent 71ba24581c
commit 0e6256d077
1 changed files with 5 additions and 0 deletions
--- a/5
+++ b/5
@ -584,6 +584,11 @@ endif

 export CONFIG_SYS_TEXT_BASE

+# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
+KBUILD_CPPFLAGS += $(KCPPFLAGS)
+KBUILD_AFLAGS += $(KAFLAGS)
+KBUILD_CFLAGS += $(KCFLAGS)
+
 # Use UBOOTINCLUDE when you must reference the include/ directory.
 # Needed to be compatible with the O= option
 UBOOTINCLUDE    := \