Date: Sun, 09 May 1999 00:37:40 +0800 From: Peter Wemm <peter@netplex.com.au> To: Doug Rabson <dfr@nlsystems.com> Cc: cvs-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/kern kern_linker.c kern_module.c src/sys/sys module.h Message-ID: <19990508163742.91AFA1F58@spinner.netplex.com.au> In-Reply-To: Your message of "Sat, 08 May 1999 17:18:26 %2B0100." <Pine.BSF.4.05.9905081717250.18703-100000@herring.nlsystems.com>
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Doug Rabson wrote: > On Sat, 8 May 1999, Peter Wemm wrote: > > > > Modified files: > > > sys/kern kern_linker.c kern_module.c > > > sys/sys module.h > > > Log: > > > First stages of a module dependency cleanup. > > > > My plan is to have a module_set and probably dependency_set containing > > solely a list of pointers to modules in files or module dependency and > > version information. These will be a LOT easier to get to from the loader > > than parsing the sysinit_set tables looking for module_register_init, and > > should be reasonably easy to handle dependency information. > > Good idea. I wonder if it will be possible to write a userland tool which > dlopens the kld file and reads out the module information. The interesting thing is that the dependency information can be defined in pretty much the same way that DECLARE_MODULE() works. We don't need to worry about data structures for linking dependencies to modules etc, because all the information goes with the .o files. If they are linked into a monolithic kernel, it's all merged into one set. If the same binary is made into a kld, then the data is useable by the loader etc and is easy to get to. The dependency info can probably specify filename hints too if required. FWIW, I see dependency information as a different mechanism to the new-bus stuff. Exec handlers, VFS and misc kernel components, etc are not part of the new-bus scheme at all. Cheers, -Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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