Makefile 2.0 KB

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  1. # SPDX-License-Identifier: GPL-2.0
  2. include ../scripts/Makefile.include
  3. include ../scripts/Makefile.arch
  4. # always use the host compiler
  5. AR = $(HOSTAR)
  6. CC = $(HOSTCC)
  7. LD = $(HOSTLD)
  8. ifeq ($(srctree),)
  9. srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  10. srctree := $(patsubst %/,%,$(dir $(srctree)))
  11. endif
  12. SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
  13. LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
  14. LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
  15. OBJTOOL := $(OUTPUT)objtool
  16. OBJTOOL_IN := $(OBJTOOL)-in.o
  17. LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null)
  18. LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
  19. all: $(OBJTOOL)
  20. INCLUDES := -I$(srctree)/tools/include \
  21. -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
  22. -I$(srctree)/tools/arch/$(SRCARCH)/include \
  23. -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
  24. WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs
  25. CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
  26. LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
  27. # Allow old libelf to be used:
  28. elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
  29. CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
  30. AWK = awk
  31. SUBCMD_CHECK := n
  32. SUBCMD_ORC := n
  33. ifeq ($(SRCARCH),x86)
  34. SUBCMD_CHECK := y
  35. SUBCMD_ORC := y
  36. endif
  37. ifeq ($(SUBCMD_ORC),y)
  38. CFLAGS += -DINSN_USE_ORC
  39. endif
  40. export SUBCMD_CHECK SUBCMD_ORC
  41. export srctree OUTPUT CFLAGS SRCARCH AWK
  42. include $(srctree)/tools/build/Makefile.include
  43. $(OBJTOOL_IN): fixdep FORCE
  44. @$(CONFIG_SHELL) ./sync-check.sh
  45. @$(MAKE) $(build)=objtool
  46. $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
  47. $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
  48. $(LIBSUBCMD): fixdep FORCE
  49. $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
  50. clean:
  51. $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
  52. $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
  53. $(Q)$(RM) $(OUTPUT)arch/x86/inat-tables.c $(OUTPUT)fixdep
  54. FORCE:
  55. .PHONY: clean FORCE