diff --git a/.gitignore b/.gitignore
index 6245cc2..5b77a52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 
 *.o
 
-a.out
\ No newline at end of file
+a.out
+
+# Directories
+output/
diff --git a/02-segfault/Makefile b/02-segfault/Makefile
new file mode 100644
index 0000000..499ef08
--- /dev/null
+++ b/02-segfault/Makefile
@@ -0,0 +1,73 @@
+#*******************************************************************************
+# xxx Co., Ltd. All Right Reserved.
+# Author       : yegaoyang@hikvision.com.cn
+# Version      : V1.0.0  202x.xx.xx
+# Description  :
+# Note         :
+#*******************************************************************************
+
+#*******************************************************************************
+# Target name
+#*******************************************************************************
+TARGET_NAME = test_segfault
+
+#*******************************************************************************
+# Source and oject files
+#*******************************************************************************
+OBJS := segfault.o
+
+#*******************************************************************************
+# Path information
+#*******************************************************************************
+LOCAL_DIR    := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))
+
+# Subdirectory
+#     Output
+OUTPUT_DIR   := $(LOCAL_DIR)/output
+INSTALL_DIR  ?= $(LOCAL_DIR)/__install
+#$(info Output directoty : $(OUTPUT_DIR))
+#$(info Install directoty: $(INSTALL_DIR))
+
+#*******************************************************************************
+# Compile configure
+#*******************************************************************************
+
+# Toolchain
+CROSS_COMPILE ?= /home/gaoyang3513/Source/06-SG20x/02-Projects/SDK_SG200x_DuoS/host-tools/gcc/riscv64-linux-musl-x86_64/bin/riscv64-unknown-linux-musl-
+
+CC      := $(CROSS_COMPILE)gcc
+LD      := $(CROSS_COMPILE)ld
+AR      := $(CROSS_COMPILE)ar
+STRIP   := $(CROSS_COMPILE)strip
+
+# Falgs
+CFLAGS  := -Wall -O2 -DUSER_API -g
+LDFLAGS := -static
+ARFLAGS :=
+
+#*******************************************************************************
+# Variables
+#*******************************************************************************
+MULTI_CORES ?= $(shell grep -c ^processor /proc/cpuinfo)
+
+#*******************************************************************************
+# Targets
+#*******************************************************************************
+# Specify suffix names and pseudo-targets
+.SUFFIXES: .c,.o
+.PHONY:  all clean checkenv $(TARGET_NAME)
+
+all: checkenv $(TARGET_NAME)
+
+clean:
+	@rm -rf $(OBJS) $(TARGET_NAME)
+
+checkenv:
+	@mkdir -p $(OUTPUT_DIR)
+
+$(TARGET_NAME):$(OBJS)
+	@$(CC) -o $(OUTPUT_DIR)/$@ $^ $(LDFLAGS)
+	@chmod +x $(OUTPUT_DIR)/$@
+
+%.o:%.c
+	@$(CC) -o $@ -c $< $(CFLAGS)
diff --git a/02-segfault/segfault.c b/02-segfault/segfault.c
new file mode 100644
index 0000000..6605266
--- /dev/null
+++ b/02-segfault/segfault.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() {
+    int *ptr = NULL; // 初始化一个指向NULL的指针
+    *ptr = 1; // 尝试写入NULL指针引用的地址，这将导致段错误
+    return 0;
+}
\ No newline at end of file