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authorNamhyung Kim2013-04-11 10:25:04 +0200
committerArnaldo Carvalho de Melo2017-01-26 15:42:59 +0100
commitcd4ceb63438e9e28299f4352ae7b75d2967a772d (patch)
tree0c1e0fb0dfee28f9f216f4ab5eec2b8a312e2d0f /tools/perf/util/header.c
parentperf scripting perl: Do not die() when not founding event for a type (diff)
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perf util: Save pid-cmdline mapping into tracing header
Current trace info data lacks the saved cmdline mapping which is needed for pevent to find out the comm of a task. Add this and bump up the version number so that perf can determine its presence when reading. This is mostly corresponding to trace.dat file version 6, but still lacks 4 byte of number of cpus, and 10 bytes of type string - and I think we don't need those anyway. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jeremy Eder <jeder@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com>, Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> [ Change version test from == to >= ] Link: http://lkml.kernel.org/n/tip-vaooqpxsikxbb3359p0corcb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
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