Hi All, Sorry for the newb questions, but I'm trying to setup KGDB for my embedded development environment and I'm slightly confused.
Compiling a 2.6.27.3 kernel for a Kilauea (PowerPC 405EX) development board. U-boot 1.3.2 on target and ELDK 4.2 cross-tools on Debian (Lenny) host. Everything works fine w/regard to cross-compiling, booting, etc. Now trying to configure KGDB so I can do some kernel/driver coding and debugging. Have enabled KGDB and DEBUG_INFO config options and re-compiled my target kernel. Here's where I start to get confused: 1.) When configuring the kernel should I be seeing I/O driver options for serial or ethernet ports? I don't. Looking at some older examples online it seems there were options for selecting a serial port or ethernet during kernel config. Reading the KGDB DocBook (Ch 2) leads me to believe I should see some I/O driver options. 2.) Tried setting "kgdboc=ttyS0,115200" and "kgdbwait" (in that order) as boot args in U-Boot. Boot begins and pauses after kernel and device tree are loaded. Attempting to run "target remote /dev/ttyS0" on my host and getting: Ignoring packet error, continuing...(3 times) and Malformed response to offset query, timeout. Pretty sure I've got everything connected correctly, but back to item #1 not sure I'm missing an I/O driver or have some other issue? 3.) What is the status of KGDB in the 2.6.27 tree? It seems to have been added to the kernel in previous versions, but I can't tell if it's complete and working properly for my architecture. Should I be attempting to use the patch from the KGDB sourceforge project? Thanks, -jmh _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
