1: valgrind introduce http://valgrind.org/docs/manual/mc-manual.html
2: make/run valgrind in host platform - 列表内容 - wget http://www.valgrind.org/downloads/valgrind-3.8.1.tar.bz2 - tar xvf valgrind-3.8.1.tar.bz2 - cd valgrind-3.8.1 - ./configure –PRefix=/usr/local/webserver/valgrind - make - make install
3: how to use valgrind http://blog.csdn.net/21aspnet/article/details/8172124 http://blog.csdn.net/sduliulun/article/details/7732906 http://blog.chinaunix.net/uid-23629988-id-3033741.html
#include <stdlib.h> int* func(void) { int* x = malloc(10 * sizeof(int)); x[10] = 0; //问题1: 数组下标越界 } int main(void) { int* x=NULL; x=func(); //free(x); x=NULL; return 0; //问题2: 内存没有释放 }编译 $gcc -g -o test test.c
内存检查 $ valgrind –tool=memcheck –leak-check=yes –show-reachable=yes ./test
报告：
说明 Invalid write of size 4：表示数组越界写了4字节 40 bytes in 1 blocks：表示因程序退出而发生内存泄露40字节
文档： Valgrind 中包含的 Memcheck 工具可以检查以下的程序错误：
使用未初始化的内存 (Use of uninitialised memory) 使用已经释放了的内存 (Reading/writing memory after it has been free’d) 使用超过malloc分配的内存空间(Reading/writing off the end of malloc’d blocks) 对堆栈的非法访问 (Reading/writing inappropriate areas on the stack) 申请的空间是否有释放 (Memory leaks – where pointers to malloc’d blocks are lost forever) malloc/free/new/delete申请和释放内存的匹配(Mismatched use of malloc/new/new [] vs free/delete/delete []) src和dst的重叠(Overlapping src and dst pointers in memcpy() and related functions) 重复free
4: references http://blog.csdn.net/yangzhiloveyou/article/details/7935078 http://www.cnblogs.com/shuaihanhungry/p/5818713.html
cross compile valgrind http://www.itdadao.com/articles/c15a376180p0.html http://blog.csdn.net/roland_sun/article/details/46049485 https://gist.github.com/mnemonicflow/131eb830a4d74911bf5a https://sergiolima.Wordpress.com/2015/07/07/vallgrind-and-android-working-together/
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