diff options
Diffstat (limited to 'emulators/psim-freebsd/files/HOW-TO')
| -rw-r--r-- | emulators/psim-freebsd/files/HOW-TO | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/emulators/psim-freebsd/files/HOW-TO b/emulators/psim-freebsd/files/HOW-TO new file mode 100644 index 000000000000..1522bb9baaf9 --- /dev/null +++ b/emulators/psim-freebsd/files/HOW-TO @@ -0,0 +1,69 @@ +$FreeBSD$ + +Instructions for building and running the FreeBSD kernel under PSIM: + +1. On a FreeBSD system, check out a new source tree and run: + # cd src/sys/powerpc/conf + # config -g GENERIC + +2. On a NetBSD PPC system with the source NFS mounted, apply the Makefile.patch + to add the proper CWARN flags and remove the "-elf" flag. + + Compile the kernel (your mount point may vary): + # make -m /mnt/share/mk MACHINE_ARCH=powerpc + +3. On the FreeBSD system, grap /usr/src/release/write_mfs_in_kernel.c and + run it using <http://people.freebsd.org/~mp/psim/ppcdisk.bz2> to add + the md image: + + # ./write_mfs_in_kernel kernel.debug ppcdisk + +5. Run the simulator. The following .gdbinit is available as + /usr/local/share/examples/psim-freebsd/dot.gdbinit: + + display/i $pc + define pglobal + print *(struct globaldata *)$sprg0 + end + target sim -e chirp -r 33554432 + set architecture powerpc:604 + load + +# psim-freebsd kernel.debug +GNU gdb 20011012 (MI_OUT) +Copyright 2001 Free Software Foundation, Inc. +GDB is free software, covered by the GNU General Public License, and you are +welcome to change it and/or distribute copies of it under certain conditions. +Type "show copying" to see the conditions. +There is absolutely no warranty for GDB. Type "show warranty" for details. +This GDB was configured as "--host=i386-portbld-freebsd5.0 --target=powerpc-freebsd-elf"... +Connected to the simulator. +The target architecture is assumed to be powerpc:604 +chirp: note descriptor missing load-base +(gdb) b cpu_switch +Breakpoint 1 at 0x1d8d58 +(gdb) run +Starting program: /usr/vsrc/sys/powerpc/compile/GENERIC/kernel.debug +Copyright (c) 1992-2001 The FreeBSD Project. +Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 + The Regents of the University of California. All rights reserved. +FreeBSD 5.0-CURRENT #0: Fri Oct 12 12:47:40 PDT 2001 + root@netppc:/mnt/vsrc/sys/powerpc/compile/GENERIC +CPU: PowerPC Version 0 (Revision 0) +real memory = 33554432 (32768K bytes) +avail memory = 29794304 (29096K bytes) +Timecounter "powerpc" frequency 16666666 Hz +rn_init: radix functions require max_keylen be set +Mounting root from ufs:/dev/md0c + +Breakpoint 1, 0x001d8d58 in cpu_switch () +1: x/i $pc 0x1d8d58 <cpu_switch+24>: mfsprg r3,0 +(gdb) where +#0 0x001d8d58 in cpu_switch () +#1 0x0014baa4 in mi_switch () at ../../../kern/kern_synch.c:765 +#2 0x0014af0c in msleep (ident=0x308cf8, mtx=0x0, priority=68, + wmesg=0x1e27f8 "sched", timo=1000) at ../../../kern/kern_synch.c:484 +#3 0x001c0e58 in scheduler (dummy=0xcda) at ../../../vm/vm_glue.c:439 +#4 0x0011d720 in mi_startup () at ../../../kern/init_main.c:209 +#5 0x00114880 in kernel_text () +(gdb) |