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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Windows] Implement priorities in llvm.global_ctors in MSVC environments"
href="https://bugs.llvm.org/show_bug.cgi?id=38552">38552</a>
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<th>Summary</th>
<td>[Windows] Implement priorities in llvm.global_ctors in MSVC environments
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Common Code Generator Code
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>rnk@google.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>The llvm.global_ctors array has three elements in each entry: initializer,
priority, and comdat key.
For Windows-MSVC environments, we do nothing with the priority, we put all
initializers in .CRT$XCU sections here:
static MCSectionCOFF *getCOFFStaticStructorSection(MCContext &Ctx,
const Triple &T, bool
IsCtor,
unsigned Priority,
const MCSymbol *KeySym,
MCSectionCOFF *Default) {
if (T.isKnownWindowsMSVCEnvironment() || T.isWindowsItaniumEnvironment())
return Ctx.getAssociativeCOFFSection(Default, KeySym, 0);
Oops.
It's tricky, becuase we have to turn a number from a name into a string that
sorts alphabetically between XCA and XCU. In particular, XCL is interesting,
because at that point, the CRT runs its initializers.</pre>
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