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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [LLVM-COV] No coverage for "destructor" function"
href="https://bugs.llvm.org/show_bug.cgi?id=50630">50630</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[LLVM-COV] No coverage for "destructor" function
</td>
</tr>
<tr>
<th>Product</th>
<td>Runtime Libraries
</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>libprofile library
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>cnwy1996@outlook.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>$ clang -v
clang version 11.0.0
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/wangyang/llvm-project/build/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Candidate multilib: .;@m64
Selected multilib: .;@m64
$ cat test.c
#include<stdio.h>
extern void abort(void);
extern void exit(int);
int i;
void __attribute__((constructor)) c2() {
printf("1\n");
if (i)
abort();
}
void __attribute__((destructor)) d1() {
printf("2\n");
if (i)
abort();
}
void main() {}
$ clang -w -O0 -g -fcoverage-mapping -fprofile-instr-generate=test.profraw
test.c; ./a.out; llvm-profdata merge test.profraw -o test.profdata; llvm-cov
show a.out -instr-profile=test.profdata test.c > test.lcov; cat test.lcov
1
2
1| |#include<stdio.h>
2| |extern void abort(void);
3| |extern void exit(int);
4| |int i;
5| |
6| 1|void __attribute__((constructor)) c2() {
7| 1| printf("1\n");
8| 1| if (i)
9| 0| abort();
10| 1|}
11| |
12| 0|void __attribute__((destructor)) d1() {
13| 0| printf("2\n");
14| 0| if (i)
15| 0| abort();
16| 0|}
17| |
18| 1|void main() {}
Obviously,function d1 was executed.</pre>
</div>
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