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H A D | thread-stack.c | 2dcde4e1 Thu Sep 20 08:00:46 CDT 2018 Adrian Hunter <adrian.hunter@intel.com> perf tools: Improve thread_stack__process() for trace begin / end
thread_stack__process() is used to create call paths for database export. Improve the handling of trace begin / end to allow for a trace that ends in a call.
Previously, the Intel PT decoder would indicate begin / end by a branch from / to zero. That hides useful information, in particular when a trace ends with a call. Before remedying that, enhance the thread stack so that it identifies the trace end by the flag instead of by ip == 0.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20180920130048.31432-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2dcde4e1 Thu Sep 20 08:00:46 CDT 2018 Adrian Hunter <adrian.hunter@intel.com> perf tools: Improve thread_stack__process() for trace begin / end thread_stack__process() is used to create call paths for database export. Improve the handling of trace begin / end to allow for a trace that ends in a call. Previously, the Intel PT decoder would indicate begin / end by a branch from / to zero. That hides useful information, in particular when a trace ends with a call. Before remedying that, enhance the thread stack so that it identifies the trace end by the flag instead of by ip == 0. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20180920130048.31432-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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