Re: [PATCH] perf report: Add warning when libunwind not compiled in

2019-10-14 Thread Arnaldo Carvalho de Melo
Em Fri, Oct 11, 2019 at 10:21:22AM +0800, Jin Yao escreveu: > We received a user report that call-graph dwarf mode was enabled in perf > record but perf report didn't unwind the callstack correctly. The reason was, > libunwind was not compiled in. > > We can use 'perf -vv' to check the compiled

[PATCH] perf report: Add warning when libunwind not compiled in

2019-10-10 Thread Jin Yao
We received a user report that call-graph dwarf mode was enabled in perf record but perf report didn't unwind the callstack correctly. The reason was, libunwind was not compiled in. We can use 'perf -vv' to check the compiled libraries but it would be valuable to report a warning to user directly