#include <stdio.h> static void display(int i, int *ptr); int main(void) { int x = 5; int *xptr = &x; printf("In main():\n"); printf(" x is %d and is stored at %p.\n", x, &x); printf(" xptr points to %p which holds %d…

解决了我一个大问题!!! http://stackoverflow.com/questions/5048112/use-gdb-to-debug-a-c-program-called-from-a-shell-script There are two options that you can do: 1) invoke GDB directly within the shell script. This would imply that you don't have standard in an…

Tool GDB Examining Memory (data or in machine instructions) You can use the command x (for “examine”) to examine memory in any of several formats, independently of your program's data types. x/nfu addr x addr x n, the repeat count The repeat count is…

今天调试有个linux环境的应用时,gdb提示A syntax error in expression, near `variable)'.,最后经查,gdb版本过低(比如7.2)或者源代码不匹配所致,确保源代码匹配,gdb在gcc之后发布,问题解决.…

https://mp.weixin.qq.com/s/EJVqw7JPjjaib68tENl5AQ 简单介绍TLDebugModuleInner中的Program Buffer Access. 1. implementation-specific bits set by harts executing code 1) haltedBitRegs/resumeReqRegs haltedBitRegs和resumeReqRegs在dmactive为假的情况下,值为0.在dmactive为真的情况下…

https://mp.weixin.qq.com/s/kjhJJ3moRQzxHt6pJOXEgg 简单介绍TLDebugModuleInner中Program Buffer寄存器的实现. 1. programBufferMem 1) 定义 以字节为单位的Program Buffer寄存器: 2) 复位值 dmactive为假时,其值为0: 2. programBufferNxt 用于存放programBufferMem寄存器的将要使用的值. 3. 寄存器组 programBufferMem是一…

title: buffer-overflow date: 2016-01-10 14:17:17 categories: information-security tags: buffer-overflow --- Excrcise1 Now, you can write some code. Your job is to print the address of the variable buffer, in the C program stack1.c, and compile the C…

http://blog.jobbole.com/107925/ gdb 调试入门,大牛写的高质量指南 http://blog.jobbole.com/107759/ gdb是the GNU Debugger的简称.它是一款UNIX平台的调试器(debugger),可用于为C, C++, Objective-C, Java, Fortran等程序debug. 在gdb中,你可以通过设置断点(break point)来控制程序运行的进度,并查看断点时的变量和函数调用状况,从而发现可能的问题.在许多I…

今天为调试一段代码,使用gcc将程序用-g选项重新编译.但是使用gdb进行debug时,仍然出现“no debug symbols found”的错误.仔细检查了一下Makefile,原来后面定义的连接选项中指定了-s.gcc的文档中说明如下: -sRemove all symbol table and relocation information from the executable. 去掉-s后,可以用gdb进行调试了…

mac上eclipse用gdb调试 With its new OS release, Apple has discontinued the use of GDB in OS X. Since 2005 Apple has steadily been moving away from the GNU toolchain in favor of LLVM. This means that Xcode now uses LLDB instead. LLDB looks to be a very nic…