-----Original Message----- From: kernelnewbies-bounces@kernelnewbies.org [mailto:kernelnewbies- bounces@kernelnewbies.org] On Behalf Of Matthias Brugger Sent: Tuesday, August 06, 2013 7:14 PM To: nidhi mittal hada Cc: kernelnewbies@kernelnewbies.org Subject: Re: Understanding disassembly x86 + understanding function call + parameter pass and stack frame
2013/8/6 nidhi mittal hada <nidhimittal19@gmail.com>: [...]
Hi All,
I am using crash tool to analyze core dump obtained from red hat linux on x86_64 platform. [...]
Putting some of the doubts..
a)like which sequence the parameters, return address, etc are pushed on stack? May be you would like to take a look at below link: http://www.cs.virginia.edu/~evans/cs216/guides/x86.html [Section: Calling Convention] has the exact answer to your question.
b)Which registers are used, if some registers play some spl. role ? You also might want to read the tutorials: http://cocoafactory.com/blog/2012/11/23/x86-64-assembly-language-tutorial-pa... This tutorial is in four parts. Part-2 has information on all the registers and their roles.
c)lets say for a program a.c i use gcc -S a.c ...do we have some other command to generate somewhat more clear assembly code, may be with some comments in English Take a look at information on objdump command. You can compile the debug binary of the code and use objdump with certain options on that binary- this will dump the assembly code along with inline C code.
[...]
Any kind of help in understanding this will be appreciated ..
Thanks Nidhi
Hope it helps. -- Thanks, Nilesh