Which debug tool can I use in Linux, such as Redhat 7.3?
 

I want to debug a apps. But I need a good debug tool. The platform is Linux X86.

hehe what happened to gdb that comes along :) ?? you dont like it ??
anyway google shows lot more linux debuggers may be one of them would be suitable :)
http://www.google.co.in/search?hl=en&q=debugger+linux&meta=

If the program you wanna debug come with source and this source is C/C++, you should stick to GDB.

If you do not have the luxury of having the source, I would definetely use Fenris... It is a real shame that it does not exist for Win32 OSs :(

you can use IDA or you can serch for LINICE debugger

How about DDD debuger ? This one includes in REd Hat 9.

aka

It's a pity that Fenris can't recognize my libc prolog when compiling it.
I'm using RedHat 9.

LinICE is pretty good and also open source. It is similar to SoftICE.

http://www.devic.us/linice/linice.htm

http://www.linice.com/

Use it!

Does it support remote debugging?
I need a debugger which can work in Xvnc or SSH console. GDB has some bug which will lead to wrong calling stack printing after coredump in multi-threaded programs without source code.

SoftIce for Linux

Thanks, all.
I will try to use linice and ddd.

you can also use ALD if you're just debugging normal codes.

It's tiny,and easy to use.