linux/tools/bpf/Makefile
Roman Gushchin fb982666e3 tools/bpftool: fix bpftool build with bintutils >= 2.9
Bpftool build is broken with binutils version 2.29 and later.
The cause is commit 003ca0fd2286 ("Refactor disassembler selection")
in the binutils repo, which changed the disassembler() function
signature.

Fix this by adding a new "feature" to the tools/build/features
infrastructure and make it responsible for decision which
disassembler() function signature to use.

Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-30 01:07:36 +01:00

78 lines
1.6 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
prefix = /usr
CC = gcc
LEX = flex
YACC = bison
MAKE = make
CFLAGS += -Wall -O2
CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
FEATURE_USER = .bpf
FEATURE_TESTS = libbfd disassembler-four-args
FEATURE_DISPLAY = libbfd disassembler-four-args
check_feat := 1
NON_CHECK_FEAT_TARGETS := clean bpftool_clean
ifdef MAKECMDGOALS
ifeq ($(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
%.yacc.c: %.y
$(YACC) -o $@ -d $<
%.lex.c: %.l
$(LEX) -o $@ $<
all: bpf_jit_disasm bpf_dbg bpf_asm bpftool
bpf_jit_disasm : CFLAGS += -DPACKAGE='bpf_jit_disasm'
bpf_jit_disasm : LDLIBS = -lopcodes -lbfd -ldl
bpf_jit_disasm : bpf_jit_disasm.o
bpf_dbg : LDLIBS = -lreadline
bpf_dbg : bpf_dbg.o
bpf_asm : LDLIBS =
bpf_asm : bpf_asm.o bpf_exp.yacc.o bpf_exp.lex.o
bpf_exp.lex.o : bpf_exp.yacc.c
clean: bpftool_clean
rm -rf *.o bpf_jit_disasm bpf_dbg bpf_asm bpf_exp.yacc.* bpf_exp.lex.*
install: bpftool_install
install bpf_jit_disasm $(prefix)/bin/bpf_jit_disasm
install bpf_dbg $(prefix)/bin/bpf_dbg
install bpf_asm $(prefix)/bin/bpf_asm
bpftool:
$(MAKE) -C bpftool
bpftool_install:
$(MAKE) -C bpftool install
bpftool_clean:
$(MAKE) -C bpftool clean
.PHONY: bpftool FORCE