Instruction tracing will typically have access to information about the
instruction being executed for a particular ip sample. Some of that
information will be available in the 'flags' member of struct
perf_sample.
With the addition of transactions events synthesis to Instruction
Tracing options, there is a need to be able easily to see the flags
because they show whether the ip is at the start, commit or abort of a
tranasaction.
Consequently add an option to display the flags.
The flags are "bcrosyiABEx" which stand for branch, call, return,
conditional, system, asynchronous, interrupt, transaction abort, trace
begin, trace end, and in transaction, respectively.
Example using Intel PT:
perf script -fip,time,event,sym,addr,flags
...
1288.721584105: branches:u: bo 401146 main => 401152 main
1288.721584105: transactions: x 0 401164 main
1288.721584105: branches:u: bx 40117c main => 40119b main
1288.721584105: branches:u: box 4011a4 main => 40117e main
1288.721584105: branches:u: bcx 401187 main => 401094 g
...
1288.721591645: branches:u: bx 4010c4 g => 4010cb g
1288.721591645: branches:u: brx 4010cc g => 401189 main
1288.721591645: transactions: 0 4011a6 main
1288.721593199: branches:u: b 4011a9 main => 4011af main
1288.721593199: branches:u: bo 4011bc main => 40113e main
1288.721593199: branches:u: b 401150 main => 40115a main
1288.721593199: transactions: x 0 401164 main
1288.721593199: branches:u: bx 40117c main => 40119b main
1288.721593199: branches:u: box 4011a4 main => 40117e main
1288.721593199: branches:u: bcx 401187 main => 40105e f
...
1288.722284747: branches:u: brx 401093 f => 401189 main
1288.722284747: branches:u: box 4011a4 main => 40117e main
1288.722284747: branches:u: bcx 401187 main => 40105e f
1288.722285883: transactions: bA 0 401071 f
1288.722285883: branches:u: bA 401071 f => 40116a main
1288.722285883: branches:u: bE 40116a main => 0 [unknown]
1288.722297174: branches:u: bB 0 [unknown] => 40116a main
...
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1428594864-29309-26-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
400ea6d327