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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLD crashes if ARM.exidx input section is empty"
href="https://bugs.llvm.org/show_bug.cgi?id=36598">36598</a>
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<th>Summary</th>
<td>LLD crashes if ARM.exidx input section is empty
</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>normal
</td>
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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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<th>Reporter</th>
<td>konstantin.schwarz@hightec-rt.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
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<pre>ld.lld crashes if it is invoked with the following input
// test.s
.text
.globl _start
_start:
// linker.script
SECTIONS
{
.foo:
{
exidx_start = .;
*(.ARM.exidx*)
exidx_end = .;
}
}
The test.s file is assembled in the following way:
llvm-mc -filetype=obj -triple=arm-arm-none-eabi test.s -o test.o
The program does not contain an ARM.exidx section, hence the InputSection
pointer 'First' in OutputSection::finalize is a nullptr and dereferenced later
on.</pre>
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