PC-BSD/trueos 2635d60sys/cddl/dev/dtrace/powerpc dtrace_isa.c dtrace_asm.S

powerpc/dtrace: Actually fix stack traces

Fix stack unwinding such that requesting N stack frames in lockstat will
actually give you N frames, not anywhere from 0-3 as had been before.

lockstat prints the mutex function instead of the caller as the reported
locker, but the stack frame is detailed enough to find the real caller.

MFC after:      2 weeks
DeltaFile
+15-22sys/cddl/dev/dtrace/powerpc/dtrace_isa.c
+10-0sys/cddl/dev/dtrace/powerpc/dtrace_asm.S
+25-222 files

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