tools/objtool/Makefile

   1 include ../scripts/Makefile.include
   2 include ../scripts/Makefile.arch
   3
   4 ifeq ($(ARCH),x86_64)
   5 ARCH := x86
   6 endif
   7
   8 # always use the host compiler
   9 HOSTCC  ?= gcc
  10 HOSTLD  ?= ld
  11 CC       = $(HOSTCC)
  12 LD       = $(HOSTLD)
  13 AR       = ar
  14
  15 ifeq ($(srctree),)
  16 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  17 srctree := $(patsubst %/,%,$(dir $(srctree)))
  18 endif
  19
  20 SUBCMD_SRCDIR           = $(srctree)/tools/lib/subcmd/
  21 LIBSUBCMD_OUTPUT        = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
  22 LIBSUBCMD               = $(LIBSUBCMD_OUTPUT)libsubcmd.a
  23
  24 OBJTOOL    := $(OUTPUT)objtool
  25 OBJTOOL_IN := $(OBJTOOL)-in.o
  26
  27 all: $(OBJTOOL)
  28
  29 INCLUDES := -I$(srctree)/tools/include \
  30             -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
  31             -I$(srctree)/tools/objtool/arch/$(ARCH)/include
  32 CFLAGS   += -Wall -Werror $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -fomit-frame-pointer -O2 -g $(INCLUDES)
  33 LDFLAGS  += -lelf $(LIBSUBCMD)
  34
  35 # Allow old libelf to be used:
  36 elfshdr := $(shell echo '\#include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
  37 CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
  38
  39 AWK = awk
  40 export srctree OUTPUT CFLAGS SRCARCH AWK
  41 include $(srctree)/tools/build/Makefile.include
  42
  43 $(OBJTOOL_IN): fixdep FORCE
  44         @$(MAKE) $(build)=objtool
  45
  46 $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
  47         @sh ./sync-check.sh
  48         $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
  49
  50
  51 $(LIBSUBCMD): fixdep FORCE
  52         $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
  53
  54 clean:
  55         $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
  56         $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
  57         $(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
  58
  59 FORCE:
  60
  61 .PHONY: clean FORCE