[COMMON][TRACE] Add debug print if chdir does not work
yet another gcc 5.2 nuisance. fixes: common/trace.c: In function ‘trace_perf_capture’: common/trace.c:1633:2: warning: ignoring return value of ‘chdir’, declared with attribute warn_unused_result [-Wunused-result] chdir("/data"); ^ Reported-by:Robert C Nelson <robertcnelson@gmail.com> Signed-off-by:
Nishanth Menon <nm@ti.com>
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