mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-13 14:24:11 +08:00
1d516bd72a
commit ab4e0744e9 upstream.
Decouple ORC entries from instructions. This simplifies the
control/data flow, and is going to make it easier to support alternative
instructions which change the stack layout.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
2.0 KiB
Makefile
72 lines
2.0 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
include ../scripts/Makefile.include
|
|
include ../scripts/Makefile.arch
|
|
|
|
# always use the host compiler
|
|
AR = $(HOSTAR)
|
|
CC = $(HOSTCC)
|
|
LD = $(HOSTLD)
|
|
|
|
ifeq ($(srctree),)
|
|
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
|
|
srctree := $(patsubst %/,%,$(dir $(srctree)))
|
|
endif
|
|
|
|
SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
|
|
LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
|
|
LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
|
|
|
|
OBJTOOL := $(OUTPUT)objtool
|
|
OBJTOOL_IN := $(OBJTOOL)-in.o
|
|
|
|
LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null)
|
|
LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
|
|
|
|
all: $(OBJTOOL)
|
|
|
|
INCLUDES := -I$(srctree)/tools/include \
|
|
-I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
|
|
-I$(srctree)/tools/arch/$(SRCARCH)/include \
|
|
-I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
|
|
WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed -Wno-nested-externs
|
|
CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
|
|
LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
|
|
|
|
# Allow old libelf to be used:
|
|
elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr)
|
|
CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED)
|
|
|
|
AWK = awk
|
|
|
|
SUBCMD_CHECK := n
|
|
SUBCMD_ORC := n
|
|
|
|
ifeq ($(SRCARCH),x86)
|
|
SUBCMD_CHECK := y
|
|
SUBCMD_ORC := y
|
|
endif
|
|
|
|
export SUBCMD_CHECK SUBCMD_ORC
|
|
export srctree OUTPUT CFLAGS SRCARCH AWK
|
|
include $(srctree)/tools/build/Makefile.include
|
|
|
|
$(OBJTOOL_IN): fixdep FORCE
|
|
@$(CONFIG_SHELL) ./sync-check.sh
|
|
@$(MAKE) $(build)=objtool
|
|
|
|
$(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN)
|
|
$(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
|
|
|
|
|
|
$(LIBSUBCMD): fixdep FORCE
|
|
$(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT)
|
|
|
|
clean:
|
|
$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
|
|
$(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
|
|
$(Q)$(RM) $(OUTPUT)arch/x86/inat-tables.c $(OUTPUT)fixdep
|
|
|
|
FORCE:
|
|
|
|
.PHONY: clean FORCE
|