The patch titled
uml: fix compilation options for USER_OBJS
has been added to the -mm tree. Its filename is
uml-fix-compilation-options-for-user_objs.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: uml: fix compilation options for USER_OBJS
From: Jeff Dike <jdike@xxxxxxxxxxx>, Paolo Giarrusso <blaisorblade@xxxxxxxx>
Make sure that when compiling USER_OBJS the correct compilation options are
passed; since they are compiled with USER_CFLAGS which is derived from
CFLAGS, make sure it is a recursively evaluated variable, so that changes
to CFLAGS done afterwards the inclusion of arch/$(ARCH)/Makefile are
reflected in USER_CFLAGS.
For instance, without this patch userspace objects are never compiled with
debug info active.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@xxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/um/Makefile | 21 +++++++++++----------
arch/um/Makefile-i386 | 4 +---
arch/um/Makefile-x86_64 | 4 ++--
3 files changed, 14 insertions(+), 15 deletions(-)
diff -puN arch/um/Makefile~uml-fix-compilation-options-for-user_objs arch/um/Makefile
--- a/arch/um/Makefile~uml-fix-compilation-options-for-user_objs
+++ a/arch/um/Makefile
@@ -64,9 +64,14 @@ CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSU
AFLAGS += $(ARCH_INCLUDE)
-USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
-USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
- $(MODE_INCLUDE) -D_FILE_OFFSET_BITS=64
+USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
+ $(patsubst -I%,,$(CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
+ -D_FILE_OFFSET_BITS=64
+
+include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)
+
+#This will adjust *FLAGS accordingly to the platform.
+include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
# -Derrno=kernel_errno - This turns all kernel references to errno into
# kernel_errno to separate them from the libc errno. This allows -fno-common
@@ -74,15 +79,11 @@ USER_CFLAGS := $(patsubst -D__KERNEL__,,
# errnos.
# These apply to kernelspace only.
-CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
- -Dmktime=kernel_mktime
+KERNEL_DEFINES = -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
+ -Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES)
+CFLAGS += $(KERNEL_DEFINES)
CFLAGS += $(call cc-option,-fno-unit-at-a-time,)
-include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)
-
-#This will adjust *FLAGS accordingly to the platform.
-include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
-
# These are needed for clean and mrproper, since in that case .config is not
# included; the values here are meaningless
diff -puN arch/um/Makefile-i386~uml-fix-compilation-options-for-user_objs arch/um/Makefile-i386
--- a/arch/um/Makefile-i386~uml-fix-compilation-options-for-user_objs
+++ a/arch/um/Makefile-i386
@@ -16,7 +16,6 @@ OBJCOPYFLAGS := -O binary -R .note -R
ifeq ("$(origin SUBARCH)", "command line")
ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
CFLAGS += $(call cc-option,-m32)
-USER_CFLAGS += $(call cc-option,-m32)
AFLAGS += $(call cc-option,-m32)
LINK-y += $(call cc-option,-m32)
UML_OBJCOPYFLAGS += -F $(ELF_FORMAT)
@@ -25,7 +24,7 @@ export LDFLAGS HOSTCFLAGS HOSTLDFLAGS UM
endif
endif
-CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH)
+ARCH_KERNEL_DEFINES += -U__$(SUBARCH)__ -U$(SUBARCH)
# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
include $(srctree)/arch/i386/Makefile.cpu
@@ -38,4 +37,3 @@ cflags-y += $(call cc-option,-mpreferred
cflags-y += -ffreestanding
CFLAGS += $(cflags-y)
-USER_CFLAGS += $(cflags-y)
diff -puN arch/um/Makefile-x86_64~uml-fix-compilation-options-for-user_objs arch/um/Makefile-x86_64
--- a/arch/um/Makefile-x86_64~uml-fix-compilation-options-for-user_objs
+++ a/arch/um/Makefile-x86_64
@@ -8,8 +8,8 @@ _extra_flags_ = -fno-builtin -m64
#We #undef __x86_64__ for kernelspace, not for userspace where
#it's needed for headers to work!
-CFLAGS += -U__$(SUBARCH)__ $(_extra_flags_)
-USER_CFLAGS += $(_extra_flags_)
+ARCH_KERNEL_DEFINES = -U__$(SUBARCH)__
+CFLAGS += $(_extra_flags_)
CHECKFLAGS += -m64
AFLAGS += -m64
_
Patches currently in -mm which might be from jdike@xxxxxxxxxxx are
origin.patch
fix-remove-the-use-of-_syscallx-macros-in-uml.patch
uml-fix-compilation-options-for-user_objs.patch
uml-fix-prototypes.patch
uml-make-execvp-safe-for-our-usage.patch
tty-signal-tty-locking.patch
uml-add-generic-bug-support.patch
add-process_session-helper-routine-deprecate-old-field-fix-warnings-fix.patch
-
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