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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ccc-analyzer filters too many compiler flags for Pre-Compiled Headers"
href="http://llvm.org/bugs/show_bug.cgi?id=16413">16413</a>
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<th>Summary</th>
<td>ccc-analyzer filters too many compiler flags for Pre-Compiled Headers
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.2
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
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<th>Reporter</th>
<td>kmowery@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10735" name="attach_10735" title="ccc-analyzer patch to resolve this bug">attachment 10735</a> <a href="attachment.cgi?id=10735&action=edit" title="ccc-analyzer patch to resolve this bug">[details]</a></span>
ccc-analyzer patch to resolve this bug
If ccc-analyzer is run as part of a compilation which includes pre-compiled
header files, the analyze clang invocation fails with errors like these:
error: const-qualified string support was enabled in PCH file but is currently
disabled
error: __OPTIMIZE__ predefined macro was enabled in PCH file but is currently
disabled
error: exception handling was disabled in PCH file but is currently enabled
error: run-time type information was disabled in PCH file but is currently
enabled
To solve these problems, ccc-analyzer needs to pass along the following flags:
-Wwrite-string (since this actually implies -fconst-strings)
any -O level
all -f flags
This is perhaps not an exhaustive list, but I am able to complete an analysis
of WebKit by including these flags.
I have attached a diff (generated by git) against ccc-analyzer (clang-3.2)
which should fix these issues.
I believe clang-3.3 suffers from the same issues, but other bugs are preventing
me from fully testing it currently.</pre>
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