linux调试常用命令和工具

环境变量：
MALLOC_CHECK_  can set to 0,1,2,3
 0  不产生错误信息，也不中止程序
 1  产生错误信息，但不中止程序
 2  不产生错误信息，但中止程序
 3  产生错误信息，并且中止程序

命令：
gdb -- The GNU debuger
strace -- trace system calls and signals
nm -- list symbols from object files
lsof -- list open files
ld -- The GNU linker
ldconfig -- configure dynamic linker run time bindings


工具：
library & system call trace:
> ltrace , strace

memcheck:
valgrind --tool=memcheck ./prog
MEMWATCH
YAMD(Yet Another Malloc Debugger)

debuggers:
gdb , ddd
kgdb
kdb

Dump Facility:
linux kernel crash dump - lkcd

Linux Trace Toolkit:
ltt

Custom Kernel Instrumentation:
dprobes

Special Console functions:
 Magic SysReq key

Error/Debug Messages

System error logs:
/var/log/*
dmesg

Syslog

Console

application debug level



reference:

1. Mastering Linux debugging techniques
http://www.ibm.com/developerworks/linux/library/l-debug/
2. Ten Commands Every Linux Developer Should Know

3. ~ygz/378-03S/IBM-debug.pdf
4. GNU GDB Debugger Command Cheat Sheet