<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<blockquote type="cite">Thanks for that, Stefan. I built the main
branch of LLVM (I have been using the 11.1 release branch) and
tried again with --jit-kind=orc. That does indeed fix the crash.</blockquote>
Nice, so this issue originated from module splitting in orc-lazy
mode. Your options are:<br>
(1) Keep the --jit-kind=orc greedy mode, which materializes all
reachable code upfront and can be fine if you deal with small
amounts only.<br>
(2) Go lazy but compile modules as a whole with --jit-kind=orc-lazy
--per-module-lazy; it's the most performant lazy flavor in my
experience and it hopefully avoids the CodeGen error as well.<br>
(3) Or go lazy and supply your own partitioning function. Then you
could tune everything yourself in detail.<br>
<br>
<blockquote type="cite">But lli fails with unresolved symbols:
<div><br>
</div>
<div> Symbols not found: [ __emutls_v._Init_thread_epoch,
__emutls_get_address, _Init_thread_header, _Init_thread_footer,
??3@YAXPEAX_K@Z, ??_7type_info@@6B@,
?_Facet_Register@std@@YAXPEAV_Facet_base@1@@Z ]</div>
</blockquote>
I think these are all Windows-specific issues that are not currently
supported in RuntimeDyld and, honestly, I don't know if it's
realistic to still expect it to happen. My understanding is that
someone will have to write a COFF backend for JITLink to have a
chance at solving all the Windows mysteries eventually.<br>
<br>
In the meantime, you can try to compile with exceptions disabled and
fake/provide a delete from the host process. The TLS ones you
probably know. I guess the std::locale::facet one indicates you are
missing a library, libcmt.lib or libcpmt.lib maybe?<br>
<br>
Good luck.<br>
<br>
<div class="moz-cite-prefix">On 06/04/2021 12:19, Geoff Levner
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAHMBa1sYeX6zcJOsvvgKaJ+Zpk6sHf3kg084e7mvFG40-9t3gw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>Thanks for that, Stefan. I built the main branch of LLVM (I
have been using the 11.1 release branch) and tried again with
--jit-kind=orc. That does indeed fix the crash. But lli fails
with unresolved symbols:</div>
<div><br>
</div>
<div> Symbols not found: [ __emutls_v._Init_thread_epoch,
__emutls_get_address, _Init_thread_header,
_Init_thread_footer, ??3@YAXPEAX_K@Z, ??_7type_info@@6B@,
?_Facet_Register@std@@YAXPEAV_Facet_base@1@@Z ]</div>
<div><br>
</div>
<div>Geoff<br>
</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Apr 3, 2021 at 1:53 PM
Stefan Gränitz <<a href="mailto:stefan.graenitz@gmail.com"
moz-do-not-send="true">stefan.graenitz@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> Hi Geoff<br>
<br>
<blockquote type="cite">LLVM ERROR: Associative COMDAT
symbol 'GVName' is not a key for its COMDAT.</blockquote>
This is in CodeGen TargetLoweringObjectFileCOFF so this
isn't necessarily JIT specific. Maybe a backtrace would be
helpful?<br>
<br>
<blockquote type="cite">lli --jit-end=orc-lazy hello.bc</blockquote>
Greedy Orc mode recently landed in lli: <a
href="https://reviews.llvm.org/rGe1579894d2051db8"
target="_blank" moz-do-not-send="true">https://reviews.llvm.org/rGe1579894d2051db8</a><br>
You might want to retry with that in order to rule out the
lazy-JIT-infrastructure as a cause for the error.<br>
<br>
<blockquote type="cite">should I just give up now on porting
our Orc-based application to Windows?</blockquote>
I am not aware of anyone actively working on improved Orc
Windows support right now.<br>
<br>
<div>On 02/04/2021 12:40, Geoff Levner via llvm-dev wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Sorry, there is a typo in my previous
message: read "jit-kind" where I typed "jit-end".<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Apr 2, 2021 at
12:37 PM Geoff Levner <<a
href="mailto:glevner@gmail.com" target="_blank"
moz-do-not-send="true">glevner@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>Given this C++ code (hello.cpp):</div>
<div><br>
</div>
<div><span style="font-family:monospace">
#include <iostream><br>
int main()<br>
{<br>
std::cout << "Hi, mom." <<
std::endl;<br>
return 0;<br>
}</span></div>
<div><br>
</div>
<div>On Linux (CentOS 7), no problem:</div>
<div><br>
</div>
<div><span style="font-family:monospace"> >
clang++ -c -emit-llvm hello.cpp</span></div>
<div><span style="font-family:monospace"> >
lli --jit-end=orc-lazy hello.bc</span></div>
<div><span style="font-family:monospace"> Hi,
mom.</span></div>
<div><span style="font-family:monospace"> ></span></div>
<div><br>
</div>
<div>But on Windows (7):</div>
<div>
<div><br>
</div>
<div><span style="font-family:monospace"> >
clang++ -c -emit-llvm hello.cpp</span></div>
<div><span style="font-family:monospace"> >
lli --jit-end=orc-lazy hello.bc</span></div>
</div>
<div><span style="font-family:monospace"> LLVM
ERROR: Associative COMDAT symbol
'??_7_Iostream_error_category2@std@@6B@' is not
a key for its COMDAT.<br>
PLEASE submit a bug report to <a
href="https://bugs.llvm.org/" target="_blank"
moz-do-not-send="true">https://bugs.llvm.org/</a>
and include the crash backtrace.</span></div>
<div><br>
</div>
<div>I know Orc JIT lacks COMDAT support, but I
thought that just caused duplicate symbols
sometimes. Am I doing something stupid here? Or
should I just give up now on porting our Orc-based
application to Windows? (The application
JIT-compiles C++ modules which rely heavily on
STL.)<br>
</div>
<div><br>
</div>
<div>Geoff</div>
<div><br>
</div>
</div>
</blockquote>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
LLVM Developers mailing list
<a href="mailto:llvm-dev@lists.llvm.org" target="_blank" moz-do-not-send="true">llvm-dev@lists.llvm.org</a>
<a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" target="_blank" moz-do-not-send="true">https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a>
</pre>
</blockquote>
<pre cols="72">--
<a href="https://flowcrypt.com/pub/stefan.graenitz@gmail.com" target="_blank" moz-do-not-send="true">https://flowcrypt.com/pub/stefan.graenitz@gmail.com</a></pre>
</div>
</blockquote>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="https://flowcrypt.com/pub/stefan.graenitz@gmail.com">https://flowcrypt.com/pub/stefan.graenitz@gmail.com</a></pre>
</body>
</html>