Re: [LI] core dump in user login

[Rajesh Fowkar <rfowkar@xxxxxxxxxxxxxxx>]

Hi Pramod,

Thanks. I will check the PCQ  CD for ltrace/strace RPM.

Rajesh

On Wed, 26 Jan 2000, you wrote:
> Hello,
> 	strace is for "system call tracing". It shows you what all system
> calls your program executes. For example, if you trace a simple
> "hello world" program, you will find that your program executes the
> write() syscall because  the printf() library function ultimately calls
> the write() system call. Knowing what all syscalls your program 
> executes (strace also shows you the arguments to the syscall) is
> sometimes invaluable in debugging programs whose source is not
> available.
> 	ltrace is similar to strace, but it does not trace to the
> syscall level. It simply shows you all the library functions your
> program executes. For example, suppose you have a piece of code
> like this:
> 	main()
> 	{
> 		printf("hello world");
> 	}
> You compile this to a.out and simply type 'ltrace a.out'. Here is the
> output on my machine:
> 	atexit(0x40005d10)
>  	__libc__init_first(1, ..... <lots of arguments>)
> 	atexit(0x080484c0)
> 	printf("hello world")
> 	exit(11)
> 	-------------------------------
> 
> strace should be available by default on your Red hat machine. If not,
> check out the RPM's. 
> 	
> 

-- 
Rajesh(ALIAS Shriram)
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