search for: hieta

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2020 Sep 30
5
[Release-testers] [11.0.0 Release] Release Candidate 5 is here
I’m happy to run them, although I’d appreciate a pointer to the appropriate documentation. From: llvm-dev <llvm-dev-bounces at lists.llvm.org> on behalf of Tobias Hieta via llvm-dev <llvm-dev at lists.llvm.org> Reply-To: Tobias Hieta <tobias at plexapp.com> Date: Wednesday, September 30, 2020 at 11:15 AM To: Hans Wennborg <hans at chromium.org> Cc: llvm-dev <llvm-dev at lists.llvm.org>, Release-testers <release-testers at lists.llvm.org&...
2019 Oct 18
2
llvm-strip creates unloadable shared objects on linux-armv7hf
...echt), grimar (George Rimar). If you include these people >> on the reviewers then I'm sure they'll be able to add anyone else that >> they think would be interested. >> >> Hope this helps >> >> Peter >> >> On Thu, 17 Oct 2019 at 12:53, Tobias Hieta <tobias at plexapp.com> wrote: >> > >> > Hello Peter, >> > >> > I was able to fix this issue with this simple patch against llvm-objcopy: >> > >> > diff --git a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp >> > b/llvm/tools/llvm-obj...
2019 Oct 17
4
llvm-strip creates unloadable shared objects on linux-armv7hf
...Oct 17, 2019 at 11:06 AM Rui Ueyama <ruiu at google.com> wrote: > > One thing I noticed is that llvm-strip seemed to remove a .ARM.attributes section. Can you try --keep-section=.ARM.attributes to tell to the command to keep the section? > > On Thu, Oct 17, 2019 at 5:37 PM Tobias Hieta via llvm-dev <llvm-dev at lists.llvm.org> wrote: >> >> Hello, >> >> Recently we tried to streamline our toolchain by removing some GNU >> tools with LLVM tools to avoid having multiple copies of strip, nm, ar >> and similar tools. Today we ran into a really...
2019 Oct 17
2
llvm-strip creates unloadable shared objects on linux-armv7hf
...ve in llvm-objdump are MaskRay (Fangrui Song), rupprect (Jordan Rupprecht), grimar (George Rimar). If you include these people on the reviewers then I'm sure they'll be able to add anyone else that they think would be interested. Hope this helps Peter On Thu, 17 Oct 2019 at 12:53, Tobias Hieta <tobias at plexapp.com> wrote: > > Hello Peter, > > I was able to fix this issue with this simple patch against llvm-objcopy: > > diff --git a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp > b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp > index dd6a7d7e14b..c0dfd3a9838 100...
2020 Feb 03
2
ASAN not finding any bugs?
...exbrachetmialot at gmail.com> wrote: > > I haven’t looked at the code gen yet because I’m not on my computer right now but I suspect that at -Os the compiler is optimizing this away because it knows it to be undefined behavior. Try with -O0. > > On Mon, Feb 3, 2020 at 10:53 AM Tobias Hieta via llvm-dev <llvm-dev at lists.llvm.org> wrote: >> >> Hello, >> >> I am building sanitizers for our different platforms and trying to use >> it in an example program, but while it seems like ASAN is running it's >> init functions (see stdout below with...
2020 Jul 23
2
How to debug a missing symbol with ThinLTO?
...se llvm-ranlib from llvm 10 instead. * Don't use `ranlib`. Then the static library won't have SYMDEF and linker will fallback to parse all the object file in the static library. That will sacrifice some link time but it will link correctly. Steven > On Jul 22, 2020, at 11:41 PM, Tobias Hieta <tobias at plexapp.com> wrote: > > Steven, > > This is confusing. In the orig_command_line you can see that src/.libs/libogg.a is passed to the command line and even when running verbose clang I can see that clang invokes the linker with libogg.a on the line: > > "/...
2020 Sep 10
2
[RFC] New Feature Proposal: De-Optimizing Cold Functions using PGO Info
FYI David is referring to PGSO (profile-guided size optimization) as it exists directly under that name, see: https://reviews.llvm.org/D67120. And yeah using PGSO is selecting optsize while this change is selecting optnone. On 9/9/20, 10:58 AM, "llvm-dev on behalf of Tobias Hieta via llvm-dev" <llvm-dev-bounces at lists.llvm.org<mailto:llvm-dev-bounces at lists.llvm.org> on behalf of llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote: Would it make sense to have a flag to select optnone or optsize? We would probably also do the trad...
2019 Jan 24
2
LLVM/Clang 8.0.0-rc1 source tarballs?
Thanks for the information Tobias. - Sedat - On Thu, Jan 24, 2019 at 3:31 PM Tobias Hieta <tobias at plexapp.com> wrote: > > Sedat, > > In Hans announcement yesterday he pointed out that he would upload source tarballs as soon as possible: > > "I'll get the source tarballs and docs published as soon as possible, and binaries as they become available&quot...
2020 Jul 22
2
How to debug a missing symbol with ThinLTO?
...ar/folders/5c/85r7gp0909j5jbytzds1j7b40000gn/T/thinlto-bf51d2 -lto_library data_files/libLTO.dylib -no_deduplicate -dynamic -arch x86_64 -macosx_version_min 10.15.0 -debug_snapshot -filelist objects/filelist dylibs/libSystem.tbd dylibs/libc++.tbd Steven > On Jul 22, 2020, at 11:42 AM, Tobias Hieta <tobias at plexapp.com> wrote: > > Hello, > > Thanks for the reply Teresa and Steven, > > I uploaded the snapshot to GDrive: https://drive.google.com/file/d/11Ngst9FOnVL4fWYlKalzoFXL--B1SaOb/view?usp=sharing <https://drive.google.com/file/d/11Ngst9FOnVL4fWYlKalzoFXL--B...
2020 Jul 22
2
How to debug a missing symbol with ThinLTO?
...on't have a way to run the MacOS compiler myself, and it uses the old LTO API which I am less familiar with. Typically these issues happen if you don't use llvm-ar, but it looks like you are using that so I'm not sure. > > Teresa > > On Wed, Jul 22, 2020 at 12:29 AM Tobias Hieta <tobias at plexapp.com <mailto:tobias at plexapp.com>> wrote: > David, > > Thanks for looking into this. I did a small reproduction on my machine > outside of my build system. So here is how to reproduce: > > Download https://downloads.xiph.org/releases/ogg/libogg-1....
2020 Jul 22
2
How to debug a missing symbol with ThinLTO?
...of thing happens more often in C++ with templates where one > object depends (incorrectly) on an implicit instantiation created in > another object, rather than carrying its own instantiation. > > Not sure what might cause it in C code. > > On Tue, Jul 21, 2020 at 11:47 PM Tobias Hieta via llvm-dev > <llvm-dev at lists.llvm.org> wrote: > > > > Hello, > > > > I am building libogg with clang (10.0.1) on macOS and if I pass > > "-flto=thin" to C and LDFLAGS it will not link correctly claiming > > missing symbols when linking to...
2020 Sep 10
2
[RFC] New Feature Proposal: De-Optimizing Cold Functions using PGO Info
...Thanks, > > Wenlei > > > > *From: *llvm-dev <llvm-dev-bounces at lists.llvm.org> on behalf of Modi Mo > via llvm-dev <llvm-dev at lists.llvm.org> > *Reply-To: *Modi Mo <modimo at fb.com> > *Date: *Wednesday, September 9, 2020 at 5:55 PM > *To: *Tobias Hieta <tobias at plexapp.com>, Renato Golin <rengolin at gmail.com> > *Cc: *"ddevienne at gmail.com" <ddevienne at gmail.com>, llvm-dev < > llvm-dev at lists.llvm.org>, "cfe-dev (cfe-dev at lists.llvm.org)" < > cfe-dev at lists.llvm.org> > *Su...
2020 Mar 24
6
LLVM 10.0.0 Release
...0/projects/libcxx/docs/ReleaseNotes.html Special thanks to the release testers and packagers: Alexandre Ganea, Andrew Kelley, Anil Mahmud, Bernhard Rosenkraenzer, Brian Cain, Dimitry Andric, Martijn Otto, Michael Kruse, Michał Górny, Neil Nelson, Rainer Orth, Serge Guelton, Sylvestre Ledru, Tobias Hieta, and Yvan Roux. Without your work, this release would not be possible. For questions or comments about the release, please contact the community on the mailing lists. Onwards to LLVM 11! And take care. Thanks, Hans
2020 Mar 24
6
LLVM 10.0.0 Release
...0/projects/libcxx/docs/ReleaseNotes.html Special thanks to the release testers and packagers: Alexandre Ganea, Andrew Kelley, Anil Mahmud, Bernhard Rosenkraenzer, Brian Cain, Dimitry Andric, Martijn Otto, Michael Kruse, Michał Górny, Neil Nelson, Rainer Orth, Serge Guelton, Sylvestre Ledru, Tobias Hieta, and Yvan Roux. Without your work, this release would not be possible. For questions or comments about the release, please contact the community on the mailing lists. Onwards to LLVM 11! And take care. Thanks, Hans
2019 Dec 10
2
[Release-testers] LLVM 9.0.1-rc2 has been tagged
On 12/10/2019 12:06 AM, Tobias Hieta wrote: > Hello, > > I finally figured out that I still need Python 2.7 in order to get > tests running correctly on macOS. But this lead to a bunch of test > fails when using the script: > > FAIL: LLVM :: Bindings/Go/go.test (23671 of 61786) I've seen this go failure bef...
2018 Nov 20
4
llvm.org pre-built clang significantly slower than apple/xcode clang
Hello LLVM/Clang developers, We recently switched to use the same clang version on all our platforms. This included switching from apple-clang from xcode to a pre-built binary we downloaded from llvm.org. We noticed that this actually came with a pretty big performance regression in compile times. If we do the simplest test program like this: #include <string> #include <iostream>
2019 Oct 17
3
LLVM 9.0.0 prebuilt binaries for MacOS
Vedant, Thanks for building the packages before. Could you detail what's required to build these binaries on macOS so that someone else could replicate it? Thanks, Tobias On Mon, Oct 14, 2019 at 8:29 PM Vedant Kumar via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi Gio, > > I prepared the macOS packages for the past few releases, but have less time to keep up with
2018 Nov 20
2
[cfe-dev] llvm.org pre-built clang significantly slower than apple/xcode clang
...M_LINK_LLVM_DYLIB:BOOL=ON which would improve the load time of the compiler by combining all of the llvm libs into a single dylib and would eliminate the speed decrease from using the default use of assertions in the built compiler. > Jack > > On Tue, Nov 20, 2018 at 6:56 AM Tobias Hieta via cfe-dev <cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>> wrote: > Hello LLVM/Clang developers, > > We recently switched to use the same clang version on all our platforms. This included switching from apple-clang from xcode to a pre-built binary we downloaded...
2020 Jul 22
2
How to debug a missing symbol with ThinLTO?
Hello, I am building libogg with clang (10.0.1) on macOS and if I pass "-flto=thin" to C and LDFLAGS it will not link correctly claiming missing symbols when linking to the archive (libogg.a). undef: _ogg_stream_init Undefined symbols for architecture x86_64: "_ogg_stream_init", referenced from: _main in lto.o Removing lto=thin fixes the problem. Inspecting the AR libs with
2019 Oct 17
2
llvm-strip creates unloadable shared objects on linux-armv7hf
Hello, Recently we tried to streamline our toolchain by removing some GNU tools with LLVM tools to avoid having multiple copies of strip, nm, ar and similar tools. Today we ran into a really strange issue where shared objects where not loadable. We where able to track this down to llvm-strip with default arguments creating a shared object that doesn't load correctly. It works if we switch