CVSROOT: /cvs
Module name: src
Changes by: gkoeh...@cvs.openbsd.org 2022/01/28 11:37:40
Modified files:
sys/arch/powerpc/ddb: db_interface.c db_trace.c
sys/arch/powerpc/include: db_machdep.h
sys/arch/powerpc64/powerpc64: db_trace.c
Log message:
Give ddb more access to registers on macppc, powerpc64
Edit db_regs[] in db_trace.c on both powerpc and powerpc64, so ddb can
access $r14, $r15, $r16, $dar, $dsisr.
Only for powerpc: change db_trap_glue to copy all registers to and
from ddb_regs (it was skipping some); change db_set_single_step and
db_clear_single_step to flip the correct bit of srr1; delete
FIXUP_PC_AFTER_BREAK, which was off by 1 instruction.
"ddb{1}> s" on my PowerMac7,3 (dual G5 at 2700 MHz) began to panic
like, "*cpu0: mutex 0xa7d0a0 not held in tc_update_timekeep". Add an
arbitrary delay(100) after sending PPC_IPI_DDB; I want cpu0 to get the
ipi before it can see db_active == 1 and skip acquiring a mutex.
ok kettenis@
