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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 - _FORTIFY_SOURCE and optimization(like -O1, -O2, etc.) prevents CUDA compilation"
href="https://bugs.llvm.org/show_bug.cgi?id=41390">41390</a>
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<th>Summary</th>
<td>_FORTIFY_SOURCE and optimization(like -O1, -O2, etc.) prevents CUDA compilation
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>CUDA
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kazukuro0824@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>#include <stdio.h>
int main()
{
printf("test\n");
}
This code can't be compiled when you run Clang like below:
$ clang -x cuda -O2 -D_FORTIFY_SOURCE=1 -c test.cu.cc
That's because string_fortified.h, included from string.h, tries to re-declare
some built-in functions. (See also
<a href="https://sourceware.org/git/?p=glibc.git;a=blob;f=string/string.h;h=c38eea971f4396c678598f51602082318ec5349d;hb=HEAD#l494">https://sourceware.org/git/?p=glibc.git;a=blob;f=string/string.h;h=c38eea971f4396c678598f51602082318ec5349d;hb=HEAD#l494</a>)
So, I think __clang_cuda_runtime_wrapper.h:216 should be reconsidered.
For example:
#include <string.h>
to
#if defined(__fortify_function)
#define __tmp_value __fortify_function
#undef __fortify_function
#include <string.h>
#define __fortify_function __tmp_value
#undef __tmp_value
#else
#include <string.h>
#endif</pre>
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