Author: rwatson
Date: Sun Mar 15 14:12:40 2015
New Revision: 280035
URL: https://svnweb.freebsd.org/changeset/base/280035
Log:
Replace the completely arbitrary '3' with '9' for the number of frames to
skip using the DTrace 'profile' provider on ARM. This causes stack traces
to skip various driver-and callout-related things as they do on x86, where
the likewise arbitrary values are '6' (32-bit) and '10' (64-bit) for
similar sorts of reasons.
MFC after: 3 days
Sponsored by: DARPA, AFRL
Modified:
head/sys/cddl/dev/profile/profile.c
Modified: head/sys/cddl/dev/profile/profile.c
==============================================================================
--- head/sys/cddl/dev/profile/profile.c Sun Mar 15 14:05:55 2015
(r280034)
+++ head/sys/cddl/dev/profile/profile.c Sun Mar 15 14:12:40 2015
(r280035)
@@ -135,7 +135,7 @@ struct profile_probe_percpu;
#ifdef __arm__
/* bogus */
-#define PROF_ARTIFICIAL_FRAMES 3
+#define PROF_ARTIFICIAL_FRAMES 9
#endif
typedef struct profile_probe {
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