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Date: Thu, 1 Oct 2015 20:10:41 +0100 From: Russell King - ARM Linux <linux@....linux.org.uk> To: Drew Richardson <drew.richardson@....com> Cc: will.deacon@....com, a.p.zijlstra@...llo.nl, mingo@...hat.com, acme@...nel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, wade.cherry@....com, pawel.moll@....com Subject: Re: [PATCH] arm: perf: Fix userspace call stack walking On Thu, Oct 01, 2015 at 10:26:47AM -0700, Drew Richardson wrote: > The layout of stack frames has changed over time. Testing using a > arm-linux-gnueabi gcc-4.2 from 2007 the original code didn't work but > this new code does. It also works with clang as well as newer versions > of gcc. Can you point to a modern ARM distribution where perf actually works with calltraces into userspace? -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- 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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