CVSROOT: /cvs
Module name: src
Changes by: gkoeh...@cvs.openbsd.org 2020/06/12 16:01:01
Modified files:
sys/arch/powerpc64/include: db_machdep.h pmap.h
sys/arch/powerpc64/powerpc64: db_memrw.c db_trace.c locore.S
pmap.c syncicache.c trap.c
Log message:
Teach powerpc64 ddb to x, w, break, step, trace.
Copy and adapt db_memrw.c from amd64, so ddb can read and write kernel
memory. It can now insert breakpoints in the kernel text. Change
__syncicache() to prevent an infinite loop when len isn't a multiple
of cacheline_size.
Get breakpoints and single-stepping to work.
Single-stepping uses msr bit PSL_SE (single-step trace enable).
Adapt db_trace.c db_stack_trace_print() from powerpc 32, but without
all its features. For now, powerpc64 trace doesn't print function
arguments and doesn't recognize traps.
"go for it" kettenis@
