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perf script: "sym" field really means show IP data

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Currently the "sym" output field is used to dump instruction pointers
and callchain stack. Sample addresses can also be converted to symbols,
so the meaning of "sym" needs to be fixed. This patch adds an "ip"
option and if it is selected the user can also opt to dump symbols for
them. If the user opts to dump IP without syms only the address is
shown.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1306528124-25861-2-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Ahern
2011-05-27 14:28:43 -06:00
committed by Arnaldo Carvalho de Melo
parent 2cee77c450
commit 787bef174f
4 changed files with 58 additions and 38 deletions
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10
tools/perf/Documentation/perf-script.txt
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@ -115,10 +115,10 @@ OPTIONS
-f::
--fields::
Comma separated list of fields to print. Options are:
comm, tid, pid, time, cpu, event, trace, sym. Field
comm, tid, pid, time, cpu, event, trace, ip, sym. Field
list can be prepended with the type, trace, sw or hw,
to indicate to which event type the field list applies.
e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace
e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace
perf script -f <fields>
@ -132,17 +132,17 @@ OPTIONS
The arguments are processed in the order received. A later usage can
reset a prior request. e.g.:
-f trace: -f comm,tid,time,sym
-f trace: -f comm,tid,time,ip,sym
The first -f suppresses trace events (field list is ""), but then the
second invocation sets the fields to comm,tid,time,sym. In this case a
second invocation sets the fields to comm,tid,time,ip,sym. In this case a
warning is given to the user:
"Overriding previous field request for all events."
Alternativey, consider the order:
-f comm,tid,time,sym -f trace:
-f comm,tid,time,ip,sym -f trace:
The first -f sets the fields for all events and the second -f
suppresses trace events. The user is given a warning message about