site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Thread-index: AcihjCxAauanEw1/Ed2dxQAdT0T19A== Thread-topic: mach-o section question User-agent: Microsoft-Entourage/11.4.0.080122 OK, just started reading it... that is going to take me a while to fully figure out. If/when I get into trouble, do you mind if I ask you questions? Thanks, Cem Karan On 4/17/08 8:49 PM, "Godfrey van der Linden" <gvdl@mac.com> wrote:

Yeah I agree with Stephen. Reading the mach-o header directly will probably be more robust than depending on the output of nm. There is some fairly easy to understand code in the kernel sources that parses the fat and mach-o headers.

See xnu/libsa/kld_patch.c: kld_file_map(). There is a lot of other stuff in there that you don't need but the parsing of the fat and mach- o headers are fairly straight forward. I know this code pretty well since I wrote it ;-).

Cheers

Godfrey

On 2008-04-18, at 0:24 , stephen joseph butler wrote:

...

On Wed, Apr 16, 2008 at 9:36 AM, Army Research Lab <ckaran@arl.army.mil

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wrote: Can anyone fill me in on what those unknown sections are? I briefly looked at the Mac OS X ABI Mach-O File Format Reference (http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORun time/Reference/reference.html), which is where I got the few definitions I have above, but I'd like to know more.

Have you checked the headers in /usr/include/mach-o/? Poking around loader.h, I see defines for some of your sections with some quick comments. There might be more information hidden in other files. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/gvdl%40mac.com

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