Re: [RFC] perf record: missing buildid for callstack modules

From: Peter Zijlstra
Date: Fri Jan 15 2016 - 16:36:54 EST

On Fri, Jan 15, 2016 at 10:58:48AM -0800, Stephane Eranian wrote:
> then it would be clear what is what, no field with dual meaning.
> Now, that assumes that no pathname can be longer than 65535 bytes.

include/uapi/linux/limits.h:#define PATH_MAX 4096 /* # chars in a path name including nul */

Also, our RECORDS cannot exceed 64k.