Date: Mon, 05 Jan 2009 10:55:19 +0200 From: Danny Braniss <danny@cs.huji.ac.il> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: current@freebsd.org Subject: Re: upcoming elfdump refactoring Message-ID: <E1LJlF1-000L2y-Cv@kabab.cs.huji.ac.il> In-Reply-To: <20090105010105.GA47387@onelab2.iet.unipi.it> References: <20090104234238.GA44381@onelab2.iet.unipi.it> <49615475.2030803@FreeBSD.org> <20090105010105.GA47387@onelab2.iet.unipi.it>
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> On Sun, Jan 04, 2009 at 04:29:41PM -0800, Maxim Sobolev wrote: > > Luigi Rizzo wrote: > > >I need to extract value and size of some symbols from an ELF file, > > >and make them available to a C program, something like > > > > > > nm -S /boot/kernel/kernel | grep -E "(kernload|kernbase|uscanner_devs)" > > > > > >Rather than using the above tools plus popen() and some parsing code, > > >I have refactored src/usr.bin/elfdump/elfdump.c , > > >making the main routine externally callable, returning the > > >desired info in a struct rather than print them out. > > > > > >I don't know if/how other programs might need to call elfdump(), > > >but given that the changes I made have no functional or performance > > >drawback, I would like to commit them to the tree. > > >Objections ? > > > > > >(note, the diff will be large because in the process I also removed > > >global variables and staticize/constify things) > > > > Why not make this function part of libelf? > > because i was not aware of its existance (also a reason why I posted > the request - i didn't want to reinvent the wheel). > Thanks for the pointer, I will look at libelf and see if it already > contains soemthing that does what i need. > while you are at it, can you check why there is a null when you do: config -x kernel ie: sunfire> config -x /boot/kernel/kernel | grep device Binary file (standard input) matches sunfire> config -x /boot/kernel/kernel | cat -v| tail device cue device kue device rue device firewire device sbp device fwe device fwip device dcons device dcons_crom ^@sunfire> i think the libelf is involved. > cheers > luigi > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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