On Thu, Nov 25, 2010 at 01:08:58PM +0100, Erik Cederstrand wrote: > Kernel modules: > ---------------------- > In the ELF section .gnu-debuglink, there is a link to the corresponding > *.ko.symbols file. It seems to be an inode or such rather than a file path > since nothing shows up in strings(1). I have commented out "makeoptions > DEBUG=-g" in the GENERIC kernel conf file which I am testing now, but I'd > like to know what is actually going on.
The .gnu_debuglink segment contains the name of the debug symbols file (i.e. not a full path or an inode number). I'm not sure why it doesn't show up with strings(1), but you can see it with a hex editor. When gdb loads an object file with a gnu_debuglink segment, it looks in a few pre-defined locations for the corresponding symbols file. The gdb docs explain it pretty well: http://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html -Mark _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
