<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - GCC warns about a reserved destructor priority on llvm_writeout_and_clear"
href="https://bugs.llvm.org/show_bug.cgi?id=47399">47399</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>GCC warns about a reserved destructor priority on llvm_writeout_and_clear
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>11.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jistone@redhat.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, maskray@google.com
</td>
</tr></table>
<p>
<div>
<pre>From Rust: <a href="https://github.com/rust-lang/rust/pull/76224#issuecomment-685880913">https://github.com/rust-lang/rust/pull/76224#issuecomment-685880913</a>
Since: <a href="https://reviews.llvm.org/D82253">https://reviews.llvm.org/D82253</a>
../lib/profile/GCDAProfiling.c:637:1: warning: destructor priorities from 0 to
100 are reserved for the implementation [-Wprio-ctor-dtor]
637 | static void llvm_writeout_and_clear(void) {
| ^~~~~~
That function in full:
#ifndef _WIN32
// __attribute__((destructor)) and destructors whose priorities are greater
than
// 100 run before this function and can thus be tracked. The priority is
// compatible with GCC 7 onwards.
__attribute__((destructor(100)))
#endif
static void llvm_writeout_and_clear(void) {
llvm_writeout_files();
fn_list_remove(&writeout_fn_list);
}
GCC has MAX_RESERVED_INIT_PRIORITY 100, and warns for anything <= MAX. Perhaps
this should use 101?</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>