i plan on writing my next kernel newbie column on debugging both the kernel and loadable modules with gdb (based on that section from LDD3), but there are a few issues i want to clarify.
in ch 4 of LDD3 (readable online at http://lwn.net/Kernel/LDD3/), on p 100, one reads: "Note that, in order to have symbol information available for gdb, you must compile your kernel with the CONFIG_DEBUG_INFO option set. The result is a far larger kernel image on disk, but, without that information, digging through kernel variables is almost impossible." i'm pretty sure that isn't strictly true. if i recall correctly, even eithout CONFIG_DEBUG_INFO, you can still debug by simple variable name -- it's only the more complicated structures that you can't debug. does anyone know the exact limitations on debugging if you choose *not* to set CONFIG_DEBUG_INFO? thanks. rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Annoying Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday "Kernel Newbie Corner" column @ linux.com: http://cli.gs/WG6WYX ======================================================================== -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
