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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - wasm-ld fails in Windows 7"
href="https://bugs.llvm.org/show_bug.cgi?id=48378">48378</a>
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<th>Summary</th>
<td>wasm-ld fails in Windows 7
</td>
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<th>Product</th>
<td>lld
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>release blocker
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>cs134@ukr.net
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, smithp352@googlemail.com
</td>
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<p>
<div>
<pre>Recently I installed emscripten (emsdk) and it failed to compile hello world,
saying this:
wasm-ld: error: failed to write the output file: permission denied
I debugged wasm-ld and found out this:
"\llvm\lib\Support\Windows\Path.inc" have function "static std::error_code
setDeleteDisposition(HANDLE Handle, bool Delete)"
It calls SetFileInformationByHandle on file handle to set it for deletion after
closing.
But I have Windows 7 and it behaves differently from Windows 10!
"static std::error_code rename_handle(HANDLE FromHandle, const Twine &To)"
called when it tries to commit all changes done to a temporary file.
this function calls "rename_internal", and "rename_internal" calls
"GetFinalPathNameByHandleW"
On Windows 7Â GetFinalPathNameByHandleW fails with error code 5
(ERROR_ACCESS_DENIED) when it tries to get path of file scheduled for deletion.
On Windows 10 everything works perfectly.
Here's sample code in Python to quickly test this behavior:
<a href="https://pastebin.com/v51m3uBU">https://pastebin.com/v51m3uBU</a>
Possible solution is to set Disposition.DeleteFile back to false before calling
GetFinalPathNameByHandleW.</pre>
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