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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 - lld produces an empty relocation if it did target a discarded section"
href="https://bugs.llvm.org/show_bug.cgi?id=51047">51047</a>
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<th>Summary</th>
<td>lld produces an empty relocation if it did target a discarded section
</td>
</tr>
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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>Linux
</td>
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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>
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<th>Component</th>
<td>ELF
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>jan.kratochvil@redhat.com
</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>echo '__attribute__((__section__("discardme"))) char
x;__attribute__((__section__(".debug_info"))) char *xp = &x;'|clang -Wall -c -o
discard.o -x c -;echo 'SECTIONS { /DISCARD/ : { *(discardme) } }'
<span class="quote">>discard.lds;ld.lld -r -m elf_x86_64 -T discard.lds -o discard2.o</span >
discard.o;llvm-readelf -r discard2.o
Actual:
Relocation section '.rela.debug_info' at offset 0x48 contains 1 entries:
Offset Info Type Symbol's Value
Symbol's Name + Addend
0000000000000000 0000000000000001 R_X86_64_64 0
Expected either - as ld.bfd creates:
Relocation section '.rela.debug_info' at offset 0x140 contains 1 entries:
Offset Info Type Symbol's Value
Symbol's Name + Addend
0000000000000000 0000000000000000 R_X86_64_NONE 0
Expected or (preferred, this is what ld.bfd creates in real world cases):
There are no relocations in this file.
FAIL: lld-12.0.0-1.fc34.x86_64
FAIL: LLD 13.0.0 8cf7ddbdd4e5af966a369e170c73250f2e3920e7 = 2021-07-10
PASS: ld.bfd = binutils-2.35.1-41.fc34.x86_64
FAIL: ld.gold = binutils-gold-2.35.1-41.fc34.x86_64</pre>
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