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Date: Sat, 20 Dec 2008 15:31:13 +0100
From: Sam Ravnborg <sam@...nborg.org>
To: kbuild <linux-kbuild@...r.kernel.org>,
lkml <linux-kernel@...r.kernel.org>
Cc: Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH 02/26] kbuild: expand -I in KBUILD_CPPFLAGS
kbuild failed to expand include flags in KBUILD_CPPFLAGS
resulting in code like this in arch Makefiles:
ifeq ($(KBUILD_SRC),)
KBUILD_CPPFLAGS += -Iinclude/foo
else
KBUILD_CPPFLAGS += -I$(srctree)/include/foo
endif
Move use of LINUXINCLUDE into Makefile.lib to allow
us to expand -I directives of KBUILD_CPPFLAGS so
we can avoid the above code.
Signed-off-by: Sam Ravnborg <sam@...nborg.org>
---
Makefile | 4 ++--
scripts/Makefile.lib | 15 +++++++++------
2 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/Makefile b/Makefile
index 9a49960..3075586 100644
--- a/Makefile
+++ b/Makefile
@@ -336,7 +336,7 @@ LINUXINCLUDE := -Iinclude \
-I$(srctree)/arch/$(hdr-arch)/include \
-include include/linux/autoconf.h
-KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
+KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \
@@ -1638,7 +1638,7 @@ cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
$(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
- $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
+ $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
quiet_cmd_as_o_S = AS $@
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index b4ca38a..e063657 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -104,9 +104,11 @@ else
debug_flags =
endif
-orig_c_flags = $(KBUILD_CFLAGS) $(ccflags-y) $(CFLAGS_$(basetarget).o)
+orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
+ $(ccflags-y) $(CFLAGS_$(basetarget).o)
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
-_a_flags = $(KBUILD_AFLAGS) $(asflags-y) $(AFLAGS_$(basetarget).o)
+_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) \
+ $(asflags-y) $(AFLAGS_$(basetarget).o)
_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
# If building the kernel in a separate objtree expand all occurrences
@@ -127,15 +129,16 @@ __a_flags = $(call flags,_a_flags)
__cpp_flags = $(call flags,_cpp_flags)
endif
-c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
- $(__c_flags) $(modkern_cflags) \
+c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__c_flags) $(modkern_cflags) \
-D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags) \
$(debug_flags)
-a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
+a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
$(__a_flags) $(modkern_aflags)
-cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(__cpp_flags)
+cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
+ $(__cpp_flags)
ld_flags = $(LDFLAGS) $(ldflags-y)
--
1.6.0.2.GIT
--
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