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Makefile
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Makefile
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# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
OUTPUT := $(abspath .output)
CLANG ?= clang
LLVM_STRIP ?= llvm-strip
BPFTOOL_SRC := $(abspath ./bpftool/src)
BPFTOOL ?= $(OUTPUT)/bpftool/bpftool
LIBBPF_SRC := $(abspath ../src/cc/libbpf/src)
LIBBPF_OBJ := $(abspath $(OUTPUT)/libbpf.a)
INCLUDES := -I$(OUTPUT) -I../src/cc/libbpf/include/uapi
CFLAGS := -g -O2 -Wall
BPFCFLAGS := -g -O2 -Wall
INSTALL ?= install
prefix ?= /usr/local
ARCH := $(shell uname -m | sed 's/x86_64/x86/' | sed 's/aarch64/arm64/' \
| sed 's/ppc64le/powerpc/' | sed 's/mips.*/mips/' \
| sed 's/riscv64/riscv/' | sed 's/loongarch.*/loongarch/')
BTFHUB_ARCHIVE ?= $(abspath btfhub-archive)
ifeq ($(wildcard $(ARCH)/),)
$(error Architecture $(ARCH) is not supported yet. Please open an issue)
endif
APPS = \
bashreadline \
bindsnoop \
biolatency \
biopattern \
biosnoop \
biostacks \
bitesize \
cachestat \
cpudist \
cpufreq \
drsnoop \
execsnoop \
exitsnoop \
filelife \
filetop \
fsdist \
fsslower \
funclatency \
gethostlatency \
hardirqs \
klockstat \
ksnoop \
llcstat \
mdflush \
mountsnoop \
numamove \
offcputime \
oomkill \
opensnoop \
readahead \
runqlat \
runqlen \
runqslower \
sigsnoop \
slabratetop \
softirqs \
solisten \
statsnoop \
syscount \
tcptracer \
tcpconnect \
tcpconnlat \
tcplife \
tcprtt \
tcpsynbl \
vfsstat \
#
# export variables that are used in Makefile.btfgen as well.
export OUTPUT BPFTOOL ARCH BTFHUB_ARCHIVE APPS
FSDIST_ALIASES = btrfsdist ext4dist nfsdist xfsdist
FSSLOWER_ALIASES = btrfsslower ext4slower nfsslower xfsslower
SIGSNOOP_ALIAS = killsnoop
APP_ALIASES = $(FSDIST_ALIASES) $(FSSLOWER_ALIASES) ${SIGSNOOP_ALIAS}
COMMON_OBJ = \
$(OUTPUT)/trace_helpers.o \
$(OUTPUT)/syscall_helpers.o \
$(OUTPUT)/errno_helpers.o \
$(OUTPUT)/map_helpers.o \
$(OUTPUT)/uprobe_helpers.o \
$(OUTPUT)/btf_helpers.o \
$(if $(ENABLE_MIN_CORE_BTFS),$(OUTPUT)/min_core_btf_tar.o) \
#
define allow-override
$(if $(or $(findstring environment,$(origin $(1))),\
$(findstring command line,$(origin $(1)))),,\
$(eval $(1) = $(2)))
endef
$(call allow-override,CC,$(CROSS_COMPILE)cc)
$(call allow-override,LD,$(CROSS_COMPILE)ld)
.PHONY: all
all: $(APPS) $(APP_ALIASES)
ifeq ($(V),1)
Q =
msg =
else
Q = @
msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
MAKEFLAGS += --no-print-directory
endif
ifneq ($(EXTRA_CFLAGS),)
CFLAGS += $(EXTRA_CFLAGS)
endif
ifneq ($(EXTRA_LDFLAGS),)
LDFLAGS += $(EXTRA_LDFLAGS)
endif
.PHONY: clean
clean:
$(call msg,CLEAN)
$(Q)rm -rf $(OUTPUT) $(APPS) $(APP_ALIASES)
$(OUTPUT) $(OUTPUT)/libbpf:
$(call msg,MKDIR,$@)
$(Q)mkdir -p $@
.PHONY: bpftool
bpftool:
$(Q)mkdir -p $(OUTPUT)/bpftool
$(Q)$(MAKE) ARCH= CROSS_COMPILE= OUTPUT=$(OUTPUT)/bpftool/ -C $(BPFTOOL_SRC)
$(APPS): %: $(OUTPUT)/%.o $(LIBBPF_OBJ) $(COMMON_OBJ) | $(OUTPUT)
$(call msg,BINARY,$@)
$(Q)$(CC) $(CFLAGS) $^ $(LDFLAGS) -lelf -lz -o $@
$(patsubst %,$(OUTPUT)/%.o,$(APPS)): %.o: %.skel.h
$(OUTPUT)/%.o: %.c $(wildcard %.h) $(LIBBPF_OBJ) | $(OUTPUT)
$(call msg,CC,$@)
$(Q)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(OUTPUT) bpftool
$(call msg,GEN-SKEL,$@)
$(Q)$(BPFTOOL) gen skeleton $< > $@
$(OUTPUT)/%.bpf.o: %.bpf.c $(LIBBPF_OBJ) $(wildcard %.h) $(ARCH)/vmlinux.h | $(OUTPUT)
$(call msg,BPF,$@)
$(Q)$(CLANG) $(BPFCFLAGS) -target bpf -D__TARGET_ARCH_$(ARCH) \
-I$(ARCH)/ $(INCLUDES) -c $(filter %.c,$^) -o $@ && \
$(LLVM_STRIP) -g $@
btfhub-archive: force
$(call msg,GIT,$@)
$(Q)[ -d "$(BTFHUB_ARCHIVE)" ] || git clone -q https://github.com/aquasecurity/btfhub-archive/ $(BTFHUB_ARCHIVE)
$(Q)cd $(BTFHUB_ARCHIVE) && git pull
ifdef ENABLE_MIN_CORE_BTFS
$(OUTPUT)/min_core_btf_tar.o: $(patsubst %,$(OUTPUT)/%.bpf.o,$(APPS)) btfhub-archive | bpftool
$(Q)$(MAKE) -f Makefile.btfgen
endif
# Build libbpf.a
$(LIBBPF_OBJ): $(wildcard $(LIBBPF_SRC)/*.[ch]) | $(OUTPUT)/libbpf
$(call msg,LIB,$@)
$(Q)$(MAKE) -C $(LIBBPF_SRC) BUILD_STATIC_ONLY=1 \
OBJDIR=$(dir $@)libbpf DESTDIR=$(dir $@) \
INCLUDEDIR= LIBDIR= UAPIDIR= \
install
$(FSSLOWER_ALIASES): fsslower
$(call msg,SYMLINK,$@)
$(Q)ln -f -s $^ $@
$(FSDIST_ALIASES): fsdist
$(call msg,SYMLINK,$@)
$(Q)ln -f -s $^ $@
$(SIGSNOOP_ALIAS): sigsnoop
$(call msg,SYMLINK,$@)
$(Q)ln -f -s $^ $@
install: $(APPS) $(APP_ALIASES)
$(call msg, INSTALL libbpf-tools)
$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin
$(Q)$(INSTALL) $(APPS) $(DESTDIR)$(prefix)/bin
$(Q)cp -a $(APP_ALIASES) $(DESTDIR)$(prefix)/bin
.PHONY: force
force:
# delete failed targets
.DELETE_ON_ERROR:
# keep intermediate (.skel.h, .bpf.o, etc) targets
.SECONDARY: