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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Please backport r372038 to 9.0"
href="https://bugs.llvm.org/show_bug.cgi?id=43736">43736</a>
</td>
</tr>
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<th>Summary</th>
<td>Please backport r372038 to 9.0
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>9.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mgorny@gentoo.org
</td>
</tr>
<tr>
<th>CC</th>
<td>caij2003@gmail.com, llvm-bugs@lists.llvm.org, phosek@chromium.org
</td>
</tr>
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<th>Blocks</th>
<td>43360
</td>
</tr></table>
<p>
<div>
<pre>The crtbegin/crtend files in 9.0.0 are broken, and cause -rtlib=compiler-rt to
create executables that crash immediately. Please backport the fix listed
below.
@Jian Cai, @Petr, can you approve?
---
commit 155a43edb0c161bb5122ad4eeee991b43a0278bc
Author: Jian Cai <<a href="mailto:caij2003@gmail.com">caij2003@gmail.com</a>>
Date: 2019-09-16 23:47:47 +0200
[compiler-rt][crt] make test case nontrivial in check_cxx_section_exists
Summary:
.init_array gets optimized away when building with -O2 and as a result,
check_cxx_section_exists failed to pass -DCOMPILER_RT_HAS_INITFINI_ARRAY
when building crtbegin.o and crtend.o, which causes binaries linked with
them encounter segmentation fault. See <a href="https://crbug.com/855759">https://crbug.com/855759</a> for
details. This change prevents .init_array section to be optimized away
even with -O2 or higher optimization level.
Subscribers: dberris, mgorny, #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
Differential Revision: <a href="https://reviews.llvm.org/D67628">https://reviews.llvm.org/D67628</a>
llvm-svn: 372038</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [meta] 9.0.1 Release Blockers"
href="https://bugs.llvm.org/show_bug.cgi?id=43360">Bug 43360</a>] [meta] 9.0.1 Release Blockers
</li>
</ul>
</div>
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