valgrind 安装与简单测试

#下载安装包
wget https://sourceware.org/pub/valgrind/valgrind-3.20.0.tar.bz2
#解压文件
tar -xvf valgrind-3.20.0.tar.bz2
# 编译安装
cd valgrind-3.20.0/
sh autogen.sh #(配置标准的autoconf工具，可选)
./configure
make && make install

cat a.c
###############################
#include <stdlib.h>

void f(void)
{
   int* x = malloc(10 * sizeof(int));
   x[10] = 0;        // problem 1: heap block overrun
}                    // problem 2: memory leak -- x not freed

int main(void)
{
   f();
   return 0;
}

#编译示例代码
gcc a.c

valgrind --leak-check=yes ./a.out