On Fri, Apr 22, 2016 at 07:19:11PM +0300, Alexander Shishkin wrote: > +/* > + * Address range filtering: limiting the data to certain > + * instruction address ranges. Filters are ioctl()ed to us from > + * userspace as ascii strings. > + * > + * Filter string format: > + * > + * ACTION SOURCE:RANGE_SPEC > + * where ACTION is one of the > + * * "filter": limit the trace to this region > + * * "start": start tracing from this address > + * * "stop": stop tracing at this address/region; > + * SOURCE is either "file" or "kernel" > + * RANGE_SPEC is > + * * for "kernel": <start address>[/<size>] > + * * for "file": <start address>[/<size>]@</path/to/object/file>
SOURCE seems entirely redundant > + * > + * if <size> is not specified, the range is treated as a single address. single instruction, right?
