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Message-ID: <5204592A.1040307@gmail.com> Date: Thu, 08 Aug 2013 22:51:22 -0400 From: David Ahern <dsahern@...il.com> To: Arnaldo Carvalho de Melo <acme@...stprotocols.net> CC: linux-kernel@...r.kernel.org, mingo@...nel.org, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>, Frederic Weisbecker <fweisbec@...il.com>, Peter Zijlstra <peterz@...radead.org>, Stephane Eranian <eranian@...gle.com> Subject: Re: [PATCH 08/19] perf symbol: Save vmlinux or kallsyms path loaded On 8/8/13 11:08 AM, Arnaldo Carvalho de Melo wrote: > Em Wed, Aug 07, 2013 at 10:50:50PM -0400, David Ahern escreveu: >> Save vmlinux or kallsyms path loaded using embedded default lookup (ie., >> not a user specified path). Upcoming perf sched timehist command requires >> kernel symbols for properly computing idle times and prints a warning >> if the kernel symbols are not loaded. > > With this we will not know if the user passed something to set those > variables or if internally we did it, doesn't this break any existing > code assumption? I believe this only affects code paths that go to default locations. I am not aware of any code that looks at the path once the syms are loaded. AFAIK the timehist command is the first. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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