summaryrefslogtreecommitdiff
path: root/tools/bpf/Makefile
blob: 664601ab1705ab1a11e7b747157c299be2de03e2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include

prefix ?= /usr/local

LEX = flex
YACC = bison
MAKE = make
INSTALL ?= install

CFLAGS += -Wall -O2
CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi \
	  -I$(srctree)/tools/include

# This will work when bpf is built in tools env. where srctree
# isn't set and when invoked from selftests build, where srctree
# is set to ".". building_out_of_srctree is undefined for in srctree
# builds
ifeq ($(srctree),)
update_srctree := 1
endif
ifndef building_out_of_srctree
update_srctree := 1
endif
ifeq ($(update_srctree),1)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif

ifeq ($(V),1)
  Q =
else
  Q = @
endif

FEATURE_USER = .bpf
FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled
FEATURE_DISPLAY = libbfd disassembler-four-args

check_feat := 1
NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean
ifdef MAKECMDGOALS
ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
  check_feat := 0
endif
endif

ifeq ($(check_feat),1)
ifeq ($(FEATURES_DUMP),)
include $(srctree)/tools/build/Makefile.feature
else
include $(FEATURES_DUMP)
endif
endif

ifeq ($(feature-disassembler-four-args), 1)
CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
endif
ifeq ($(feature-disassembler-init-styled), 1)
CFLAGS += -DDISASM_INIT_STYLED
endif

$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y
	$(QUIET_BISON)$(YACC) -o $@ -d $<

$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l
	$(QUIET_FLEX)$(LEX) -o $@ $<

$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c
	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<

$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c
	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c
	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<

PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm

all: $(PROGS) bpftool runqslower

$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm'
$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o
	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl

$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o
	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline

$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o
	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^

$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c
$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c
$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c

clean: bpftool_clean runqslower_clean resolve_btfids_clean
	$(call QUIET_CLEAN, bpf-progs)
	$(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \
	       $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.*
	$(call QUIET_CLEAN, core-gen)
	$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf
	$(Q)$(RM) -r -- $(OUTPUT)feature

install: $(PROGS) bpftool_install
	$(call QUIET_INSTALL, bpf_jit_disasm)
	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin
	$(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm
	$(call QUIET_INSTALL, bpf_dbg)
	$(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg
	$(call QUIET_INSTALL, bpf_asm)
	$(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm

bpftool:
	$(call descend,bpftool)

bpftool_install:
	$(call descend,bpftool,install)

bpftool_clean:
	$(call descend,bpftool,clean)

runqslower:
	$(call descend,runqslower)

runqslower_clean:
	$(call descend,runqslower,clean)

resolve_btfids:
	$(call descend,resolve_btfids)

resolve_btfids_clean:
	$(call descend,resolve_btfids,clean)

.PHONY: all install clean bpftool bpftool_install bpftool_clean \
	runqslower runqslower_clean \
	resolve_btfids resolve_btfids_clean