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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Coverage with option "--coverage" instruments sanitizer's code."
href="https://bugs.llvm.org/show_bug.cgi?id=42106">42106</a>
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<th>Summary</th>
<td>Coverage with option "--coverage" instruments sanitizer's code.
</td>
</tr>
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<th>Product</th>
<td>compiler-rt
</td>
</tr>
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<th>Version</th>
<td>8.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>profile
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>valerakonychev@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22065" name="attach_22065" title="cov.main.c.html">attachment 22065</a> <a href="attachment.cgi?id=22065&action=edit" title="cov.main.c.html">[details]</a></span>
cov.main.c.html
If code is compiled with options "--coverage" and "-fsanitize", result coverage
report will contain information about branches of sanitizers code.
For example, I compiled simple program main.c:
clang -O0 -g --coverage -fsanitize=address,undefined main.c -o main
int main()
{
float a = 1.0;
return 0;
}
llvm-cov gcov main.c shows:
-: 0:Source:main.c
-: 0:Graph:main.gcno
-: 0:Data:main.gcda
-: 0:Runs:1
-: 0:Programs:1
-: 1:int main()
-: 2:{
2: 3: float a = 1.0; // !!!!!! Problem !!!!!!!
1: 4: return 0;
1: 5:}
Result html report made with gcovr:
gcovr --html --html-details --gcov-executable='llvm-cov gcov' -r . -o cov.html
I've attached report in cov.main.c.html
The report shows coverage assumes there is an branch at the line '3: float a
= 1.0;'. This branch is added by sanitizer's code, I've checked it by excluding
option "-fsanitize".</pre>
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