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|
# SPDX-License-Identifier: GPL-2.0-only
include ../../scripts/Makefile.include
include ../../scripts/Makefile.arch
srctree := $(abspath $(CURDIR)/../../../)
ifeq ($(V),1)
Q =
msg =
else
Q = @
ifeq ($(silent),1)
msg =
else
msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
endif
MAKEFLAGS=--no-print-directory
endif
# Overrides for the prepare step libraries.
HOST_OVERRIDES := AR="$(HOSTAR)" CC="$(HOSTCC)" LD="$(HOSTLD)" ARCH="$(HOSTARCH)" \
CROSS_COMPILE="" EXTRA_CFLAGS="$(HOSTCFLAGS)"
RM ?= rm
HOSTCC ?= gcc
HOSTLD ?= ld
HOSTAR ?= ar
CROSS_COMPILE =
OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
LIBBPF_SRC := $(srctree)/tools/lib/bpf/
SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
BPFOBJ := $(OUTPUT)/libbpf/libbpf.a
LIBBPF_OUT := $(abspath $(dir $(BPFOBJ)))/
SUBCMDOBJ := $(OUTPUT)/libsubcmd/libsubcmd.a
SUBCMD_OUT := $(abspath $(dir $(SUBCMDOBJ)))/
LIBBPF_DESTDIR := $(LIBBPF_OUT)
LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include
SUBCMD_DESTDIR := $(SUBCMD_OUT)
SUBCMD_INCLUDE := $(SUBCMD_DESTDIR)include
BINARY := $(OUTPUT)/resolve_btfids
BINARY_IN := $(BINARY)-in.o
all: $(BINARY)
prepare: $(BPFOBJ) $(SUBCMDOBJ)
$(OUTPUT) $(OUTPUT)/libsubcmd $(LIBBPF_OUT):
$(call msg,MKDIR,,$@)
$(Q)mkdir -p $(@)
$(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
$(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(SUBCMD_OUT) \
DESTDIR=$(SUBCMD_DESTDIR) $(HOST_OVERRIDES) prefix= subdir= \
$(abspath $@) install_headers
$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUT)
$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(LIBBPF_OUT) \
DESTDIR=$(LIBBPF_DESTDIR) $(HOST_OVERRIDES) prefix= subdir= \
$(abspath $@) install_headers
LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
HOSTCFLAGS_resolve_btfids += -g \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
-I$(LIBBPF_INCLUDE) \
-I$(SUBCMD_INCLUDE) \
$(LIBELF_FLAGS)
LIBS = $(LIBELF_LIBS) -lz
export srctree OUTPUT HOSTCFLAGS_resolve_btfids Q HOSTCC HOSTLD HOSTAR
include $(srctree)/tools/build/Makefile.include
$(BINARY_IN): fixdep FORCE prepare | $(OUTPUT)
$(Q)$(MAKE) $(build)=resolve_btfids
$(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
$(call msg,LINK,$@)
$(Q)$(HOSTCC) $(BINARY_IN) $(KBUILD_HOSTLDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS)
clean_objects := $(wildcard $(OUTPUT)/*.o \
$(OUTPUT)/.*.o.cmd \
$(OUTPUT)/.*.o.d \
$(LIBBPF_OUT) \
$(LIBBPF_DESTDIR) \
$(SUBCMD_OUT) \
$(SUBCMD_DESTDIR) \
$(OUTPUT)/resolve_btfids)
ifneq ($(clean_objects),)
clean: fixdep-clean
$(call msg,CLEAN,$(BINARY))
$(Q)$(RM) -rf $(clean_objects)
else
clean:
endif
tags:
$(call msg,GEN,,tags)
$(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC)
FORCE:
.PHONY: all FORCE clean tags prepare
|
