<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 17, 2017, at 3:17 PM, Jonathan Roelofs <<a href="mailto:jonathan@codesourcery.com" class="">jonathan@codesourcery.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">On 1/17/17 3:54 PM, Stephen Checkoway via llvm-dev wrote:</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><br class=""><blockquote type="cite" class="">On Jan 17, 2017, at 16:00, Mehdi Amini <<a href="mailto:mehdi.amini@apple.com" class="">mehdi.amini@apple.com</a>> wrote:<br class=""><br class=""><blockquote type="cite" class=""><br class="">On Jan 17, 2017, at 12:44 PM, Stephen Checkoway <<a href="mailto:s@pahtak.org" class="">s@pahtak.org</a>> wrote:<br class=""><br class=""><br class=""><br class="">cmake -GNinja ../llvm-project/llvm -DLLVM_ENABLE_PROJECTS="clang;libcxx;compiler-rt”<br class=""></blockquote><br class="">It builds for me right now on OSX (running `ninja check-all` right now), can you `git pull`, try again from a clean build dir, and send me the trace (including the hash you’re on and your OS / platform as well).<br class=""></blockquote><br class="">I did a git pull which updated me to f53d70f759a0b87048576bc87729b368a2d767a9, deleted the build directory (and the libcxx-abi symlink I created), and reran cmake and ninja and I'm not getting any errors involving missing libcxx-abi. I wish I'd saved the error log. I'm really confused by this since I can't find any reference to a libcxx-abi. I'm completely willing to believe user error here (although I cannot for the life of me figure out what I could have done).<br class=""></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Helps if you spell it 'libcxxabi' not 'libcxx-abi'.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><br class="">That said, libcxx still does not build. I get the same undefined references to various __cxa_ functions (e.g., __cxa_allocate_exception, __cxa_throw, __cxa_free_exception) and some vtables (e.g., __cxxabiv1::__si_class_type_info).<br class=""></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">These are all symbols from libcxxabi.</span></div></blockquote><blockquote type="cite" class=""><div class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><br class="">I'm running Ubuntu 16.04.1 LTS on x86-64. I haven't tried on OS X.<br class=""></blockquote></div></blockquote><div><br class=""></div><div>So apparently Linux requires libcxxabi in order to build libcxx, while macOS will use the system one. Sorry, bad example on my side in the doc.</div><div><br class=""></div><div>I just updated the example to say instead:</div><div><br class=""></div><div> cmake -GNinja ../llvm-project/llvm -DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi”</div><div><br class=""></div><div>— </div><div>Mehdi</div><div><br class=""></div><br class=""><blockquote type="cite" class=""><div class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class=""><br class=""><br class="">[nook:~/programming/llvm/llvm-project] (master) steve$ git pull --rebase<br class="">remote: Counting objects: 12, done.<br class="">remote: Compressing objects: 100% (3/3), done.<br class="">remote: Total 12 (delta 9), reused 12 (delta 9), pack-reused 0<br class="">Unpacking objects: 100% (12/12), done.<br class="">From <a href="https://github.com/llvm-project/llvm-project" class="">https://github.com/llvm-project/llvm-project</a><br class=""> b1f3d87..f53d70f master -> origin/master<br class="">First, rewinding head to replay your work on top of it...<br class="">Fast-forwarded master to f53d70f759a0b87048576bc87729b368a2d767a9.<br class="">[nook:~/programming/llvm/llvm-project] (master) steve$ git rev-parse HEAD<br class="">f53d70f759a0b87048576bc87729b368a2d767a9<br class="">[nook:~/programming/llvm/llvm-project] (master) steve$ cd ..<br class="">[nook:~/programming/llvm] steve$ mkdir clang-build<br class="">[nook:~/programming/llvm] steve$ cd clang-build<br class="">[nook:~/programming/llvm/clang-build] steve$ cmake -GNinja ../llvm-project/llvm -DLLVM_ENABLE_PROJECTS="clang;libcxx;compiler-rt"<br class=""><snip><br class="">[nook:~/programming/llvm/clang-build] steve$ ninja<br class=""><snip failed build><br class="">[nook:~/programming/llvm/clang-build] steve$ uname -a<br class="">Linux nook 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux<br class="">[nook:~/programming/llvm/clang-build] steve$ lsb_release -a<br class="">No LSB modules are available.<br class="">Distributor ID:<span class="Apple-tab-span" style="white-space: pre;"> </span>Ubuntu<br class="">Description:<span class="Apple-tab-span" style="white-space: pre;"> </span>Ubuntu 16.04.1 LTS<br class="">Release:<span class="Apple-tab-span" style="white-space: pre;"> </span>16.04<br class="">Codename:<span class="Apple-tab-span" style="white-space: pre;"> </span>xenial<br class=""><br class=""></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">--<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Jon Roelofs</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="mailto:jonathan@codesourcery.com" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">jonathan@codesourcery.com</a><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">CodeSourcery / Mentor Embedded</span></div></blockquote></div><br class=""></body></html>