| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 2 | include ../scripts/Makefile.include |
| Arnaldo Carvalho de Melo | 630e7a2 | 2016-07-22 09:59:24 -0300 | [diff] [blame] | 3 | include ../scripts/Makefile.arch |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 4 | |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 5 | ifeq ($(ARCH),x86_64) |
| 6 | ARCH := x86 |
| 7 | endif |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 8 | |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 9 | # always use the host compiler |
| Nathan Chancellor | e738fb3 | 2019-05-16 12:49:42 -0500 | [diff] [blame] | 10 | HOSTAR ?= ar |
| Mikulas Patocka | 14c47b54 | 2017-12-02 16:17:44 -0600 | [diff] [blame] | 11 | HOSTCC ?= gcc |
| 12 | HOSTLD ?= ld |
| Nathan Chancellor | e738fb3 | 2019-05-16 12:49:42 -0500 | [diff] [blame] | 13 | AR = $(HOSTAR) |
| Mikulas Patocka | 14c47b54 | 2017-12-02 16:17:44 -0600 | [diff] [blame] | 14 | CC = $(HOSTCC) |
| 15 | LD = $(HOSTLD) |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 16 | |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 17 | ifeq ($(srctree),) |
| Uwe Kleine-König | e19b7ce | 2016-11-22 09:30:26 +0100 | [diff] [blame] | 18 | srctree := $(patsubst %/,%,$(dir $(CURDIR))) |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 19 | srctree := $(patsubst %/,%,$(dir $(srctree))) |
| 20 | endif |
| 21 | |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 22 | SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/ |
| Uwe Kleine-König | e19b7ce | 2016-11-22 09:30:26 +0100 | [diff] [blame] | 23 | LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/) |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 24 | LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 25 | |
| 26 | OBJTOOL := $(OUTPUT)objtool |
| 27 | OBJTOOL_IN := $(OBJTOOL)-in.o |
| 28 | |
| Rolf Eike Beer | 0603e3a | 2019-03-26 12:48:39 -0500 | [diff] [blame] | 29 | LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null) |
| 30 | LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf) |
| 31 | |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 32 | all: $(OBJTOOL) |
| 33 | |
| Josh Poimboeuf | 6a77cff | 2017-11-06 07:21:50 -0600 | [diff] [blame] | 34 | INCLUDES := -I$(srctree)/tools/include \ |
| 35 | -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ |
| Josh Poimboeuf | 9eb7198 | 2017-11-07 21:01:52 -0600 | [diff] [blame] | 36 | -I$(srctree)/tools/objtool/arch/$(ARCH)/include |
| Josh Poimboeuf | 21ec3bf | 2017-07-27 15:56:56 -0500 | [diff] [blame] | 37 | WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed |
| Josh Poimboeuf | 037d73a | 2019-08-29 18:28:49 -0500 | [diff] [blame] | 38 | CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS) |
| Rolf Eike Beer | 0603e3a | 2019-03-26 12:48:39 -0500 | [diff] [blame] | 39 | LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 40 | |
| Jan Beulich | 2e51f26 | 2016-05-16 15:31:07 -0500 | [diff] [blame] | 41 | # Allow old libelf to be used: |
| Rasmus Villemoes | 9564a8c | 2018-04-08 23:35:28 +0200 | [diff] [blame] | 42 | elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr) |
| Jan Beulich | 2e51f26 | 2016-05-16 15:31:07 -0500 | [diff] [blame] | 43 | CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) |
| 44 | |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 45 | AWK = awk |
| Josh Poimboeuf | 60cbdf5 | 2016-07-22 14:19:20 -0500 | [diff] [blame] | 46 | export srctree OUTPUT CFLAGS SRCARCH AWK |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 47 | include $(srctree)/tools/build/Makefile.include |
| 48 | |
| 49 | $(OBJTOOL_IN): fixdep FORCE |
| 50 | @$(MAKE) $(build)=objtool |
| 51 | |
| 52 | $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) |
| Andrew Morton | 0f908cc | 2018-01-12 16:53:17 -0800 | [diff] [blame] | 53 | @$(CONFIG_SHELL) ./sync-check.sh |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 54 | $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ |
| 55 | |
| 56 | |
| 57 | $(LIBSUBCMD): fixdep FORCE |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 58 | $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 59 | |
| Josh Poimboeuf | c1d45c3 | 2016-03-02 18:39:37 -0600 | [diff] [blame] | 60 | clean: |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 61 | $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) |
| 62 | $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete |
| Josh Poimboeuf | 6a77cff | 2017-11-06 07:21:50 -0600 | [diff] [blame] | 63 | $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep |
| Josh Poimboeuf | 442f04c | 2016-02-28 22:22:41 -0600 | [diff] [blame] | 64 | |
| 65 | FORCE: |
| 66 | |
| 67 | .PHONY: clean FORCE |