Update

Makefile

@@ -1,12 +1,13 @@
 GCC=gcc
 CL=clang-11
 CFLAGS=-Wall
-LIBS=-lbpf
+LIBS=-L../libbpf/src -l:libbpf.a -lelf -lz
+#LIBS=-lbpf
 
 all: dns-trace.ebpf.o dns-trace
 
 dns-trace.ebpf.o: src/dns-trace.ebpf.c
-	$(CL) -g -O2 -target bpf -c src/dns-trace.ebpf.c -o src/dns-trace.ebpf.o
+	$(CL) -g -O2 -target bpf -D __TARGET_ARCH_x86_64 -D __BPF_TRACING__ -L../libbpf/src -l:libbpf.a -c src/dns-trace.ebpf.c -o src/dns-trace.ebpf.o
 
 dns-trace: src/dns-trace.c
 	$(GCC) $(CFLAGS) src/dns-trace.c -o dns-trace $(LIBS)

README.md

@@ -0,0 +1,18 @@
+# Introduction
+
+## Requirements
+First, you need to install these packages:
+
+```
+apt-get install bpftool clang libbpf-dev gcc-multilib 
+```
+
+Clone the project and compile it:
+```
+$ git clone https://github.com/libbpf/libbpf/
+cd libbpf/src && make
+```
+
+After that, you can execute the program:
+
+