xref: /openbmc/linux/tools/bpf/Makefile (revision 2fa5ebe3)
1 # SPDX-License-Identifier: GPL-2.0
2 include ../scripts/Makefile.include
3 
4 prefix ?= /usr/local
5 
6 LEX = flex
7 YACC = bison
8 MAKE = make
9 INSTALL ?= install
10 
11 CFLAGS += -Wall -O2
12 CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi \
13 	  -I$(srctree)/tools/include
14 
15 # This will work when bpf is built in tools env. where srctree
16 # isn't set and when invoked from selftests build, where srctree
17 # is set to ".". building_out_of_srctree is undefined for in srctree
18 # builds
19 ifeq ($(srctree),)
20 update_srctree := 1
21 endif
22 ifndef building_out_of_srctree
23 update_srctree := 1
24 endif
25 ifeq ($(update_srctree),1)
26 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
27 srctree := $(patsubst %/,%,$(dir $(srctree)))
28 endif
29 
30 ifeq ($(V),1)
31   Q =
32 else
33   Q = @
34 endif
35 
36 FEATURE_USER = .bpf
37 FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled
38 FEATURE_DISPLAY = libbfd
39 
40 check_feat := 1
41 NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean
42 ifdef MAKECMDGOALS
43 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
44   check_feat := 0
45 endif
46 endif
47 
48 ifeq ($(check_feat),1)
49 ifeq ($(FEATURES_DUMP),)
50 include $(srctree)/tools/build/Makefile.feature
51 else
52 include $(FEATURES_DUMP)
53 endif
54 endif
55 
56 ifeq ($(feature-disassembler-four-args), 1)
57 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
58 endif
59 ifeq ($(feature-disassembler-init-styled), 1)
60 CFLAGS += -DDISASM_INIT_STYLED
61 endif
62 
63 $(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y
64 	$(QUIET_BISON)$(YACC) -o $@ -d $<
65 
66 $(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l
67 	$(QUIET_FLEX)$(LEX) -o $@ $<
68 
69 $(OUTPUT)%.o: $(srctree)/tools/bpf/%.c
70 	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
71 
72 $(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c
73 	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
74 $(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c
75 	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
76 
77 PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm
78 
79 all: $(PROGS) bpftool runqslower
80 
81 $(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm'
82 $(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o
83 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl
84 
85 $(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o
86 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline
87 
88 $(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o
89 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^
90 
91 $(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c
92 $(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c
93 $(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c
94 
95 clean: bpftool_clean runqslower_clean resolve_btfids_clean
96 	$(call QUIET_CLEAN, bpf-progs)
97 	$(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \
98 	       $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.*
99 	$(call QUIET_CLEAN, core-gen)
100 	$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf
101 	$(Q)$(RM) -r -- $(OUTPUT)feature
102 
103 install: $(PROGS) bpftool_install
104 	$(call QUIET_INSTALL, bpf_jit_disasm)
105 	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin
106 	$(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm
107 	$(call QUIET_INSTALL, bpf_dbg)
108 	$(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg
109 	$(call QUIET_INSTALL, bpf_asm)
110 	$(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm
111 
112 bpftool:
113 	$(call descend,bpftool)
114 
115 bpftool_install:
116 	$(call descend,bpftool,install)
117 
118 bpftool_clean:
119 	$(call descend,bpftool,clean)
120 
121 runqslower:
122 	$(call descend,runqslower)
123 
124 runqslower_clean:
125 	$(call descend,runqslower,clean)
126 
127 resolve_btfids:
128 	$(call descend,resolve_btfids)
129 
130 resolve_btfids_clean:
131 	$(call descend,resolve_btfids,clean)
132 
133 .PHONY: all install clean bpftool bpftool_install bpftool_clean \
134 	runqslower runqslower_clean \
135 	resolve_btfids resolve_btfids_clean
136