mirror of
https://github.com/h3xduck/TripleCross.git
synced 2025-12-21 17:23:07 +08:00
90 lines
2.8 KiB
Makefile
90 lines
2.8 KiB
Makefile
# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
|
|
OUTPUT := .output
|
|
CLANG ?= clang
|
|
LLVM_STRIP ?= llvm-strip
|
|
BPFTOOL ?= $(abspath ../../tools/bpftool)
|
|
LIBBPF_SRC := $(abspath ../../libbpf/src)
|
|
LIBBPF_OBJ := $(abspath $(OUTPUT)/libbpf.a)
|
|
VMLINUX := ../../vmlinux/vmlinux.h
|
|
# Use our own libbpf API headers and Linux UAPI headers distributed with
|
|
# libbpf to avoid dependency on system-wide headers, which could be missing or
|
|
# outdated
|
|
INCLUDES := -I$(OUTPUT) -I../../libbpf/include/uapi -I$(dir $(VMLINUX))
|
|
CFLAGS := -g -Wall
|
|
ARCH := $(shell uname -m | sed 's/x86_64/x86/')
|
|
|
|
APPS = minimal bootstrap uprobe kprobe fentry
|
|
|
|
# Get Clang's default includes on this system. We'll explicitly add these dirs
|
|
# to the includes list when compiling with `-target bpf` because otherwise some
|
|
# architecture-specific dirs will be "missing" on some architectures/distros -
|
|
# headers such as asm/types.h, asm/byteorder.h, asm/socket.h, asm/sockios.h,
|
|
# sys/cdefs.h etc. might be missing.
|
|
#
|
|
# Use '-idirafter': Don't interfere with include mechanics except where the
|
|
# build would have failed anyways.
|
|
CLANG_BPF_SYS_INCLUDES = $(shell $(CLANG) -v -E - </dev/null 2>&1 \
|
|
| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
|
|
|
|
ifeq ($(V),1)
|
|
Q =
|
|
msg =
|
|
else
|
|
Q = @
|
|
msg = @printf ' %-8s %s%s\n' \
|
|
"$(1)" \
|
|
"$(patsubst $(abspath $(OUTPUT))/%,%,$(2))" \
|
|
"$(if $(3), $(3))";
|
|
MAKEFLAGS += --no-print-directory
|
|
endif
|
|
|
|
.PHONY: all
|
|
all: $(APPS)
|
|
|
|
.PHONY: clean
|
|
clean:
|
|
$(call msg,CLEAN)
|
|
$(Q)rm -rf $(OUTPUT) $(APPS)
|
|
|
|
$(OUTPUT) $(OUTPUT)/libbpf:
|
|
$(call msg,MKDIR,$@)
|
|
$(Q)mkdir -p $@
|
|
|
|
# Build libbpf
|
|
$(LIBBPF_OBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf
|
|
$(call msg,LIB,$@)
|
|
$(Q)$(MAKE) -C $(LIBBPF_SRC) BUILD_STATIC_ONLY=1 \
|
|
OBJDIR=$(dir $@)/libbpf DESTDIR=$(dir $@) \
|
|
INCLUDEDIR= LIBDIR= UAPIDIR= \
|
|
install
|
|
|
|
# Build BPF code
|
|
$(OUTPUT)/%.bpf.o: %.bpf.c $(LIBBPF_OBJ) $(wildcard %.h) $(VMLINUX) | $(OUTPUT)
|
|
$(call msg,BPF,$@)
|
|
$(Q)$(CLANG) -g -O2 -target bpf -D__TARGET_ARCH_$(ARCH) $(INCLUDES) $(CLANG_BPF_SYS_INCLUDES) -c $(filter %.c,$^) -o $@
|
|
$(Q)$(LLVM_STRIP) -g $@ # strip useless DWARF info
|
|
|
|
# Generate BPF skeletons
|
|
$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(OUTPUT)
|
|
$(call msg,GEN-SKEL,$@)
|
|
$(Q)$(BPFTOOL) gen skeleton $< > $@
|
|
|
|
# Build user-space code
|
|
$(patsubst %,$(OUTPUT)/%.o,$(APPS)): %.o: %.skel.h
|
|
|
|
$(OUTPUT)/%.o: %.c $(wildcard %.h) | $(OUTPUT)
|
|
$(call msg,CC,$@)
|
|
$(Q)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
|
|
|
|
# Build application binary
|
|
$(APPS): %: $(OUTPUT)/%.o $(LIBBPF_OBJ) | $(OUTPUT)
|
|
$(call msg,BINARY,$@)
|
|
$(Q)$(CC) $(CFLAGS) $^ -lelf -lz -o $@
|
|
|
|
# delete failed targets
|
|
.DELETE_ON_ERROR:
|
|
|
|
# keep intermediate (.skel.h, .bpf.o, etc) targets
|
|
.SECONDARY:
|
|
|