<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [WebAssembly] undefined symbol: __heap_base"
href="https://bugs.llvm.org/show_bug.cgi?id=43934">43934</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[WebAssembly] undefined symbol: __heap_base
</td>
</tr>
<tr>
<th>Product</th>
<td>lld
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>wasm
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dan433584@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, sbc@chromium.org
</td>
</tr></table>
<p>
<div>
<pre>wasm-ld has code to define __heap_base, however it doesn't appear to be defined
when __heap_base is referenced.
Here's a reduced testcase; compile with -nostdlib:
```
void *volatile p;
extern void __heap_base;
void _start(void) {
p = &__heap_base;
}
```
I get this error:
```
$ clang -nostdlib test.c
wasm-ld: error: /tmp/s-01d300.o: undefined symbol: __heap_base
```
This comes up in wasi-libc, as of this PR:
<a href="https://github.com/CraneStation/wasi-libc/pull/114">https://github.com/CraneStation/wasi-libc/pull/114</a></pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>