From mboxrd@z Thu Jan 1 00:00:00 1970 From: ramasubramanian.rahul@gmail.com (Rahul Ramasubramanian) Date: Fri, 27 May 2011 03:11:00 -0400 Subject: How a program could generate the memory addresses for its variables, when it is about to run? In-Reply-To: References: Message-ID: To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org hi this may help http://www.akae.cn/study/ebook/computerscience/Linkers%20and%20Loaders.pdf On Fri, May 27, 2011 at 2:56 AM, Rajat Sharma wrote: > Hi Sandeep, > > probably you want to look at how your program is loaded in memory. For > example an ELF binary is understood by ELF format handler inside > kernel. Format handler supply their load_binary methods to load a > program image im memory and initial its different virtual memory areas > (stack, heap etc.). exec system call searches for correct format > handler for you based on file header. > > Please go thoroghly through Understanding the Linux Kernel, 3rd > Edition, Chapter 20. Program ExZecution. > > -Rajat > > On Fri, May 27, 2011 at 12:14 PM, sandeep kumar > wrote: > > hi all, > > I am new to the linux kernel internals. I know there is a memory > management > > subsystem which handles all the memory related things. > > > > But Now i want to know a bit deeper how things work. > > > > I want to start with the following question, > > How a program could generate the memory addresses for its variables, when > it > > is about to run? > > > > Can please somebody give pointers how to learn this kind of things like, > > "in the early stages (when our program is about to be executed..about to > > become a process) what are the things that will be done by the kernel?" > > > > Please help me in this regard, > > > > Thanking you, > > Sandeep Kumar A. > > > > > > > > _______________________________________________ > > Kernelnewbies mailing list > > Kernelnewbies at kernelnewbies.org > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20110527/b2308d8b/attachment.html