similar to: Policy for compiler-rt ABI stability and external dependencies?

Hi llvm-dev, I have unit tests set up in the XRay implementation (compiler-rt/lib/xray/tests/unit) following the pattern that the TSAN and other sanitiser unit tests. However, I'm running into the following problem: When I make changes to the runtime (in this case, XRay) and do `ninja all check-xray`, it seems that the unit tests don't get re-liked to the new version of the runtime. It

> On 4 Oct 2017, at 04:43, Chris Bieneman <beanz at apple.com> wrote: > > I want to make sure I understand the problem so I can try to reproduce it. > > When you say "make changes to the runtime" you mean code in compiler-rt/lib/xray ? > Yes. > Are you using the mono-repo prototype? If not, where do you have compiler-rt's sources (llvm/projects or

On Fri, 16 Nov 2018 at 00:35, Bruce Hoult <brucehoult at sifive.com> wrote: > Yes, I'd expect only a tiny fraction of commits to change the interface between say, clang and llvm in an incompatible way, but where they do it's essential to get both sides at the same time if you want to to have every commit buildable for things such as bisection or incremental rebasing (as I think

On Wed, Mar 8, 2017 at 2:28 PM Tim Shen <timshen at google.com> wrote: > On Wed, Mar 8, 2017 at 1:49 PM David Blaikie <dblaikie at gmail.com> wrote: > > So I stumbled across an issue that I think is a bit fundamental: > > The xray runtime uses the C++ standard library. > > This seems like a problem because whatever C++ standard library is used to > compile the

On Sun, Mar 12, 2017, 4:10 PM Dean Michael Berris <dean.berris at gmail.com> wrote: > > > On 9 Mar 2017, at 09:32, David Blaikie via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > > > I agree that we should clean up the standard library usage even just for > consistency. > > > > +1 -- now that I think about it, it should be fairly doable

On Wed, Nov 30, 2016 at 3:26 AM Renato Golin <renato.golin at linaro.org> wrote: > On 30 November 2016 at 05:08, Dean Michael Berris via llvm-dev > <llvm-dev at lists.llvm.org> wrote: > > - Is there a preference between the two options provided above? > > - Any other alternatives we should consider? > > - Which parts of which options do you prefer, and is there

On Mon, Jan 7, 2019 at 3:21 PM Dean Michael Berris <dean.berris at gmail.com> wrote: > On Mon, Jan 7, 2019 at 8:43 PM Dangeti Tharun kumar > <cs15mtech11002 at iith.ac.in> wrote: > > > > Hi Dean, > > > > I have tried with -instr-map-1 and -instr-map-2, it didn't work. > > > > Yeah, I'm looking through the code and it looks like

On Wed, Nov 22, 2017 at 10:37 AM, Dean Michael Berris <dean.berris at gmail.com> wrote: > > On 22 Nov 2017, at 02:32, comic fans <comicfans44 at gmail.com> wrote: > > with some dirty hack , I've made xray runtime 'built' on windows , > > > \o/ with more test, I've found that trampoline didn't got built for windows :/ currently cmake didn't

# Objective Implement an XRay mode 'xray-profiling' that gathers stack trace latencies/durations and builds histograms to provide basic statistics about where time is going in an execution of the application. # Background XRay has two modes currently implemented in compiler-rt: a basic (nee naive) mode and flight data recorder (FDR) mode. Basic mode logging, when enabled, will collect

Aside: would it be useful to execute a build of the libc++/libc++abi with msan normally during release, and change the driver to look for these msan-built C++ libs when "-fsanitize=memory"? That would drastically cut down on the complexity of using msan. On Fri, Aug 31, 2018 at 5:43 AM Dean Michael Berris via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Thanks Vitaly and

Sent from my iPhone > On 6 Dec 2017, at 4:17 am, Brian Cain <brian.cain at gmail.com> wrote: > > > >> On Tue, Dec 5, 2017 at 9:49 AM, Dean Michael Berris via cfe-dev <cfe-dev at lists.llvm.org> wrote: >> Hi cfe-dev@ and llvm-dev@, >> >> I've attached a Chrome trace-viewer readable trace of a clang built with XRay instrumentation (additional

FYI: Patch is now available for review in https://reviews.llvm.org/D44620. On Thu, Feb 15, 2018 at 1:34 PM Dean Michael Berris <dean.berris at gmail.com> wrote: > # Objective > > Implement an XRay mode 'xray-profiling' that gathers stack trace > latencies/durations and builds histograms to provide basic statistics about > where time is going in an execution of the

Hi, The call graphs generated by "*llvm-xray graph*" has function names, while the "*llvm-xray graph-diff*" doesn't shows function names. This is the command I am using llvm-xray graph-diff xray-log.clang.1 xray-log.clang.2 -instr-map=../xray-build/bin/clang -o diff.dot Attached is the portion of the generated diff graph. Am I missing any flag? [image: graph_diff.jpg]

Another option is just to run corresponding script from *https://llvm.org/svn/llvm-project/zorg/trunk/zorg/buildbot/builders/sanitizers/ <https://llvm.org/svn/llvm-project/zorg/trunk/zorg/buildbot/builders/sanitizers/>* in empty directory. On Thu, Aug 30, 2018 at 5:00 AM Peter Smith via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hello Dean, > > I've not done this

> On 3 Dec 2018, at 23:01, Matthew Pickering via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Is anyone able to help me with this or suggest where I might be able > to get help? You’ve asked the right place, apologies for the delay I’m supposed to be answering these questions. > > Matt > On Mon, Nov 26, 2018 at 3:02 PM Matthew Pickering > <matthewtpickering

Hi Dean, I have tried with -instr-map-1 and -instr-map-2, it didn't work. Is there a way to find the function name from the identifier? -DTharun On Mon, Jan 7, 2019 at 2:29 PM Dean Michael Berris <dean.berris at gmail.com> wrote: > Hi Dangeti, > > That's interesting -- can you try providing both `-instr-map-1=` and > `-instr-map-2=` even though they're the same

Hi llvm-dev, I'm trying to reproduce an msan failure in one of the bots, but I can't seem to get the right incantation of building LLVM with msan. Here's what I've been doing: 1) Build the toolchain in one build directory, including `compiler-rt`. 2) Build the toolchain again with the just built toolchain in step 1, but this time with `-DLLVM_USE_SANITIZER=MemoryWithOrigins`. I

I'm still somewhat unclear about what you mean by "metadata record entry at the beginning of the block". I understand that I can make a MetadataRecord that contains the pid/tid since a metadata record contains 16 bytes. However, I don't understand what do you mean by the "beginning of the block". Do you mean right after the file header? My understanding is that at

On Fri, Jun 17, 2016 at 5:42 AM Matthias Braun via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Some of this overlaps with the features in XRay ( > http://lists.llvm.org/pipermail/llvm-dev/2016-April/098901.html). > > Matthias beat me to it! >From reading the RFC, it seems that some of what XRay is doing on the instrumentation side is very similar to what CSI enables. The

Hi llvm-dev, I've been implementing a tool for analysing XRay traces. A recap of XRay's original RFC [0] mentions a tool that does function call accounting as a starting point. This is implemented currently in D21987 [1], and is being reviewed by David Blaikie. One key issue in that review is the dependency between the log format determined by the XRay runtime implementation in