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<head>
<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - SIGALRM prevents tracing"
href="https://bugs.llvm.org/show_bug.cgi?id=36593">36593</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SIGALRM prevents tracing
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>5.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@lists.llvm.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stsp@list.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Hello.
Attached is a fully automated test-case.
Unpack tst.tar.gz and run "make lldb".
It will compile the binary and run lldb
with the custom .lldbinit script.
It will stop at the break-point.
Then you can press "n" to step, but nothing
happens:
---
(lldb) n
Process 9843 stopped
* thread #1, name = 'tst', stop reason = breakpoint 1.1 -4.1
frame #0: 0x00007ffff6cea9c4 libfdpp.so`DynAlloc(what="dosobj", num=1,
size=512) at dyninit.cc:59
56
57 __FAR(void)DynAlloc(const char *what, unsigned num, unsigned size)
58 {
-> 59 if (size != 512)
60 printf("TEST FAILED! size=%i\n", size);
61 else
62 printf("TEST PASSED! size=%i\n", size);
(lldb) n
Process 9843 stopped
* thread #1, name = 'tst', stop reason = breakpoint 1.1 -6.1
frame #0: 0x00007ffff6cea9c4 libfdpp.so`DynAlloc(what="dosobj", num=1,
size=512) at dyninit.cc:59
56
57 __FAR(void)DynAlloc(const char *what, unsigned num, unsigned size)
58 {
-> 59 if (size != 512)
60 printf("TEST FAILED! size=%i\n", size);
61 else
62 printf("TEST PASSED! size=%i\n", size);
(lldb) n
Process 9843 stopped
* thread #1, name = 'tst', stop reason = breakpoint 1.1 -8.1
frame #0: 0x00007ffff6cea9c4 libfdpp.so`DynAlloc(what="dosobj", num=1,
size=512) at dyninit.cc:59
56
57 __FAR(void)DynAlloc(const char *what, unsigned num, unsigned size)
58 {
-> 59 if (size != 512)
60 printf("TEST FAILED! size=%i\n", size);
61 else
62 printf("TEST PASSED! size=%i\n", size);
(lldb)
---
Its always at the same line.
Disabling SIGALRM in tst.cc makes it to work, so
it seems lldb doesn't handle signals.</pre>
</div>
</p>
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