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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Erroneous warning: section 'X' mentioned in a -j/--section option, but not found in any input file"
href="https://bugs.llvm.org/show_bug.cgi?id=50085">50085</a>
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<th>Summary</th>
<td>Erroneous warning: section 'X' mentioned in a -j/--section option, but not found in any input file
</td>
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<th>Product</th>
<td>tools
</td>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>llvm-objdump
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>rupprecht@google.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Found in <a href="https://github.com/ClangBuiltLinux/linux/issues/859">https://github.com/ClangBuiltLinux/linux/issues/859</a>.
$ bin/clang -xc -c /dev/null -o /tmp/null.o
$ bin/llvm-objdump -j .text -h /tmp/null.o # -j and -h work fine
/tmp/null.o: file format elf64-x86-64
Sections:
Idx Name Size VMA Type
2 .text 00000000 0000000000000000 TEXT
$ bin/llvm-objdump -j .text -t /tmp/null.o # -j and -t don't work fine
/tmp/null.o: file format elf64-x86-64
SYMBOL TABLE:
0000000000000000 l df *ABS* 0000000000000000 null
bin/llvm-objdump: warning: section '.text' mentioned in a -j/--section option,
but not found in any input file
The warning for -j should only fire for options (like -h) that iterate over
sections. For -t (printing the symbol table), we shouldn't print the warning,
even though we never "saw" the section we're looking for (... because we
*didn't* iterate over any sections).
The error is misleading -- either we should omit it, or we should notify the
user more directly that -j is not applicable for flags like -t.
GNU objdump prints the same warning for the repro above, but I think they would
consider it a bug too.</pre>
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