1139825Simp# SPDX-License-Identifier: GPL-2.0
21960Sdginclude ../scripts/Makefile.include
31960Sdg
41960Sdgprefix ?= /usr/local
51960Sdg
61960SdgLEX = flex
71960SdgYACC = bison
81960SdgMAKE = make
91960SdgINSTALL ?= install
101960Sdg
111960SdgCFLAGS += -Wall -O2
121960SdgCFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi \
131960Sdg	  -I$(srctree)/tools/include
141960Sdg
151960Sdg# This will work when bpf is built in tools env. where srctree
161960Sdg# isn't set and when invoked from selftests build, where srctree
171960Sdg# is set to ".". building_out_of_srctree is undefined for in srctree
181960Sdg# builds
191960Sdgifeq ($(srctree),)
201960Sdgupdate_srctree := 1
211960Sdgendif
221960Sdgifndef building_out_of_srctree
231960Sdgupdate_srctree := 1
241960Sdgendif
251960Sdgifeq ($(update_srctree),1)
261960Sdgsrctree := $(patsubst %/,%,$(dir $(CURDIR)))
271960Sdgsrctree := $(patsubst %/,%,$(dir $(srctree)))
281960Sdgendif
291960Sdg
301960Sdgifeq ($(V),1)
311960Sdg  Q =
321960Sdgelse
3350477Speter  Q = @
341960Sdgendif
351960Sdg
362165SpaulFEATURE_USER = .bpf
3715493SbdeFEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled
382165SpaulFEATURE_DISPLAY = libbfd
3933057Sbde
4033057Sbdecheck_feat := 1
4133057SbdeNON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean
4233057Sbdeifdef MAKECMDGOALS
4376235Sbpifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
4475631Salfred  check_feat := 0
4576235Sbpendif
4675631Salfredendif
471960Sdg
481960Sdgifeq ($(check_feat),1)
491960Sdgifeq ($(FEATURES_DUMP),)
501960Sdginclude $(srctree)/tools/build/Makefile.feature
511960Sdgelse
521960Sdginclude $(FEATURES_DUMP)
5360938Sjakeendif
5422521Sdysonendif
551960Sdg
5622521Sdysonifeq ($(feature-disassembler-four-args), 1)
5722521SdysonCFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
5822521Sdysonendif
5922521Sdysonifeq ($(feature-disassembler-init-styled), 1)
6022521SdysonCFLAGS += -DDISASM_INIT_STYLED
6122521Sdysonendif
6222521Sdyson
6322521Sdyson$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y
6422521Sdyson	$(QUIET_BISON)$(YACC) -o $@ -d $<
6560938Sjake
661960Sdg$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l
671960Sdg	$(QUIET_FLEX)$(LEX) -o $@ $<
681960Sdg
691960Sdg$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c
701960Sdg	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
7192719Salfred
721960Sdg$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c
731960Sdg	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
7492719Salfred$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c
7592719Salfred	$(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $<
761960Sdg
772165SpaulPROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm
7815493Sbde
79all: $(PROGS) bpftool runqslower
80
81$(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
95clean: 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
103install: $(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
112bpftool:
113	$(call descend,bpftool)
114
115bpftool_install:
116	$(call descend,bpftool,install)
117
118bpftool_clean:
119	$(call descend,bpftool,clean)
120
121runqslower:
122	$(call descend,runqslower)
123
124runqslower_clean:
125	$(call descend,runqslower,clean)
126
127resolve_btfids:
128	$(call descend,resolve_btfids)
129
130resolve_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