Ryan Johnson wrote:
Is there a way to print stack traces as part of an aggregation key in
dtrace? I'm trying to count occurrences of different stack traces, but
my program has lots of indirect function calls and the output of
stack() often doesn't contain the current function. Aggregating on
@who[caller,stack()] should fix this in theory, but I can't get the
printing to work right.
Ah! Turns out this question was already asked in 2005, and the answer is
"%k"
On a related note, it seems that "%A" can translate user-level
addresses to symbols in a printf/printa, which is not documented
AFAICT and has caused me pain in the past (see
http://kr.sun.com/developers/solaris/techdocs/dtrace_tips_public.pdf)
I've updated the printf/printa wiki page to mention both %A and %k.
Ryan
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