tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2include ../../scripts/Makefile.include
3include ../../scripts/Makefile.arch
4
5ifeq ($(srctree),)
6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7srctree := $(patsubst %/,%,$(dir $(srctree)))
8srctree := $(patsubst %/,%,$(dir $(srctree)))
9endif
10
11ifeq ($(V),1)
12 Q =
13 msg =
14else
15 Q = @
16 msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
17 MAKEFLAGS=--no-print-directory
18endif
19
20# always use the host compiler
21AR = $(HOSTAR)
22CC = $(HOSTCC)
23LD = $(HOSTLD)
24ARCH = $(HOSTARCH)
25
26OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
27
28LIBBPF_SRC := $(srctree)/tools/lib/bpf/
29SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
30
31BPFOBJ := $(OUTPUT)/libbpf.a
32SUBCMDOBJ := $(OUTPUT)/libsubcmd.a
33
34BINARY := $(OUTPUT)/resolve_btfids
35BINARY_IN := $(BINARY)-in.o
36
37all: $(BINARY)
38
39$(OUTPUT):
40 $(call msg,MKDIR,,$@)
41 $(Q)mkdir -p $(OUTPUT)
42
43$(SUBCMDOBJ): fixdep FORCE
44 $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(OUTPUT)
45
46$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)
47 $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
48
49CFLAGS := -g \
50 -I$(srctree)/tools/include \
51 -I$(srctree)/tools/include/uapi \
52 -I$(LIBBPF_SRC) \
53 -I$(SUBCMD_SRC)
54
55LIBS = -lelf -lz
56
57export srctree OUTPUT CFLAGS Q
58include $(srctree)/tools/build/Makefile.include
59
60$(BINARY_IN): fixdep FORCE
61 $(Q)$(MAKE) $(build)=resolve_btfids
62
63$(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
64 $(call msg,LINK,$@)
65 $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS)
66
67libsubcmd-clean:
68 $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(OUTPUT) clean
69
70libbpf-clean:
71 $(Q)$(MAKE) -C $(LIBBPF_SRC) OUTPUT=$(OUTPUT) clean
72
73clean: libsubcmd-clean libbpf-clean fixdep-clean
74 $(call msg,CLEAN,$(BINARY))
75 $(Q)$(RM) -f $(BINARY); \
76 $(RM) -rf $(if $(OUTPUT),$(OUTPUT),.)/feature; \
77 find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
78
79tags:
80 $(call msg,GEN,,tags)
81 $(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC)
82
83FORCE:
84
85.PHONY: all FORCE clean tags