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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Shrink SHT_GROUP if its members are deleted"
href="https://bugs.llvm.org/show_bug.cgi?id=46064">46064</a>
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<th>Summary</th>
<td>Shrink SHT_GROUP if its members are deleted
</td>
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<th>Product</th>
<td>tools
</td>
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<th>Version</th>
<td>trunk
</td>
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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>
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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-objcopy/strip
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>i@maskray.me
</td>
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<th>CC</th>
<td>alexander.v.shaposhnikov@gmail.com, jake.h.ehrlich@gmail.com, jh7370.2008@my.bristol.ac.uk, llvm-bugs@lists.llvm.org, rupprecht@google.com
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<p>
<div>
<pre>.section .foo,"aG",@progbits,foo,comdat
.section .bar,"aG",@progbits,foo,comdat
% as a.s -o a.o
% objcopy -R .foo a.o b.o; readelf -x .group b.o
Hex dump of section '.group':
0x00000000 01000000 05000000 ........
% llvm-objcopy -R .foo a.o b.o; readelf -x .group b.o
Hex dump of section '.group':
0x00000000 01000000 05000000 05000000 ............
GNU objcopy used to write zeros for the deleted member but it changed to
decrease sh_size after
<a href="https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=415f38a6d04c239b62ef3b384eb8376e5838e8df">https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=415f38a6d04c239b62ef3b384eb8376e5838e8df</a></pre>
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