Volg/Makefile at main · 1sis/Volg · GitHub

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CC       := clang
BPF_CC   := clang

BDIR     := build
SRCDIR   := src
KDIR     := kernel
IDIR     := include
CDIR     := common

CFLAGS   := -Wall -O2 -g -I$(IDIR) -I$(CDIR)
LDFLAGS  := -static -luring -lbpf -lelf -lz -lzstd

BPF_CFLAGS := -target bpf -D__TARGET_ARCH_x86 -I$(CDIR) -I$(KDIR) -O2 -g

USER_SRC := $(wildcard $(SRCDIR)/*.c)
USER_OBJ := $(USER_SRC:$(SRCDIR)/%.c=$(BDIR)/%.o)
USER_BIN := $(BDIR)/volg

BPF_SRC  := $(KDIR)/xdp_prog.c
BPF_OBJ  := $(BDIR)/xdp_prog.o
BLOB_H   := $(CDIR)/xdp_blob.h

.PHONY: all setup clean

all: setup $(BPF_OBJ) $(BLOB_H) $(USER_BIN)

setup:
	@mkdir -p $(BDIR)

# 1. Compilation BPF
$(BPF_OBJ): $(BPF_SRC)
	@echo "[+] Compiling BPF object: $<"
	$(BPF_CC) $(BPF_CFLAGS) -c $< -o $@

$(BLOB_H): $(BPF_OBJ)
	@echo "[+] Generating BPF blob header: $@"
	@xxd -i $< > $@

$(BDIR)/%.o: $(SRCDIR)/%.c $(BLOB_H)
	@echo "[+] Compiling User object: $<"
	$(CC) $(CFLAGS) -c $< -o $@

# 4. Linkage
$(USER_BIN): $(USER_OBJ)
	@echo "[!] Linking binary: $@"
	$(CC) $(USER_OBJ) -o $@ $(LDFLAGS)

clean:
	@echo "[-] Cleaning up..."
	rm -rf $(BDIR) $(BLOB_H)