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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 - valgrind missing debug info on LLD linked binaries"
href="https://bugs.llvm.org/show_bug.cgi?id=37021">37021</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>valgrind missing debug info on LLD linked binaries
</td>
</tr>
<tr>
<th>Product</th>
<td>lld
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>ELF
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>superjoe30@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>When linking a clang-produced .o file with LLD, valgrind does not see the debug
info. However when linking the same .o file with binutils ld, valgrind does see
the debug info.
Upstream issue: <a href="https://github.com/zig-lang/zig/issues/896">https://github.com/zig-lang/zig/issues/896</a>
Steps to reproduce:
// test.c
static int *foo(void) {
return (int *)10000000;
}
int main(void) {
int *x = foo();
*x += 1;
}
// looks good with binutils ld
clang -o test test.c -g
valgrind ./test
==23250== at 0x400597: main (test.c:7)
// with lld, valgrind does not see debug info
clang -o test test.c -g -fuse-ld=lld
valgrind ./test
==24210== at 0x2010F7: ??? (in /home/andy/tmp/test)
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - lld's debug info is not compatible with valgrind"
href="show_bug.cgi?id=35032">https://bugs.llvm.org/show_bug.cgi?id=35032</a> seems like a duplicate, but it is
marked fixed, and this seems to still be an issue in trunk.</pre>
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</p>
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