linux-stable/arch/um/scripts/Makefile.rules
Johannes Berg fc54a4f159 um: prevent user code in modules
By not doing the user code cflags mangling we can simply
break the build for any user code sneaking into modules.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2023-04-20 23:06:38 +02:00

28 lines
1.1 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
# ===========================================================================
# arch/um: Generic definitions
# ===========================================================================
USER_SINGLE_OBJS := \
$(foreach f,$(patsubst %.o,%,$(obj-y)),$($(f)-objs))
USER_OBJS += $(filter %_user.o,$(obj-y) $(USER_SINGLE_OBJS))
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include/linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o)
# These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
# using it directly.
UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))
$(UNPROFILE_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(basetarget).o)
$(USER_OBJS) $(UNPROFILE_OBJS): \
CHECKFLAGS := $(patsubst $(NOSTDINC_FLAGS),,$(CHECKFLAGS))
# The stubs can't try to call mcount or update basic block data
define unprofile
$(patsubst -pg,,$(patsubst -fprofile-arcs -ftest-coverage,,$(1)))
endef