OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0
0002 include ../scripts/Makefile.include
0003 include ../scripts/Makefile.arch
0004
0005 # always use the host compiler
0006 AR       = $(HOSTAR)
0007 CC       = $(HOSTCC)
0008 LD       = $(HOSTLD)
0009
0010 ifeq ($(srctree),)
0011 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
0012 srctree := $(patsubst %/,%,$(dir $(srctree)))
0013 endif
0014
0015 SUBCMD_SRCDIR           = $(srctree)/tools/lib/subcmd/
0016 LIBSUBCMD_OUTPUT        = $(or $(OUTPUT),$(CURDIR)/)
0017 LIBSUBCMD               = $(LIBSUBCMD_OUTPUT)libsubcmd.a
0018
0019 OBJTOOL    := $(OUTPUT)objtool
0020 OBJTOOL_IN := $(OBJTOOL)-in.o
0021
0022 LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
0023 LIBELF_LIBS  := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
0024
0025 all: $(OBJTOOL)
0026
0027 INCLUDES := -I$(srctree)/tools/include \
0028             -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
0029             -I$(srctree)/tools/arch/$(SRCARCH)/include  \
0030             -I$(srctree)/tools/objtool/include \
0031             -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
0032 WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs
0033 CFLAGS   := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
0034 LDFLAGS  += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
0035
0036 # Allow old libelf to be used:
0037 elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
0038 CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
0039
0040 AWK = awk
0041
0042 BUILD_ORC := n
0043
0044 ifeq ($(SRCARCH),x86)
0045         BUILD_ORC := y
0046 endif
0047
0048 export BUILD_ORC
0049 export srctree OUTPUT CFLAGS SRCARCH AWK
0050 include $(srctree)/tools/build/Makefile.include
0051
0052 $(OBJTOOL_IN): fixdep FORCE
0053         @$(CONFIG_SHELL) ./sync-check.sh
0054         @$(MAKE) $(build)=objtool
0055
0056 $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
0057         $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
0058
0059
0060 $(LIBSUBCMD): fixdep FORCE
0061         $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
0062
0063 clean:
0064         $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
0065         $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
0066         $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep $(LIBSUBCMD)
0067
0068 FORCE:
0069
0070 .PHONY: clean FORCE