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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Unable to step into __cxa_allocate_exception"
href="https://bugs.llvm.org/show_bug.cgi?id=36438">36438</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Unable to step into __cxa_allocate_exception
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>6.0
</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>dantipov@nvidia.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=19902" name="attach_19902" title="Sample program">attachment 19902</a> <a href="attachment.cgi?id=19902&action=edit" title="Sample program">[details]</a></span>
Sample program
$ /home/dantipov/.local/llvm-6.0.0/bin/lldb t-throw
(lldb) target create "t-throw"
Current executable set to 't-throw' (x86_64).
(lldb) b t-throw.cc:10
Breakpoint 1: where = t-throw`main + 18 at t-throw.cc:10, address =
0x00000000004009a9
(lldb) r
Process 22330 launched: '/home/dantipov/tmp/t-throw' (x86_64)
Process 22330 stopped
* thread #1, name = 't-throw', stop reason = breakpoint 1.1
frame #0: 0x00000000004009a9 t-throw`main(argc=1, argv=0x00007fffffffe2f8)
at t-throw.cc:10
7 try {
8 try {
9 try {
-> 10 throw new T ();
11 } catch (...) {
12 throw;
13 }
(lldb) step
gotcha
Process 22330 exited with status = 1 (0x00000001)
vs:
$ gdb -q t-throw
Reading symbols from t-throw...done.
(gdb) b t-throw.cc:10
Breakpoint 1 at 0x4009a9: file t-throw.cc, line 10.
(gdb) r
Starting program: /home/dantipov/tmp/t-throw
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Breakpoint 1, main (argc=1, argv=0x7fffffffe2f8) at t-throw.cc:10
10 throw new T ();
(gdb) s
__cxxabiv1::__cxa_allocate_exception (thrown_size=8) at
../../../../libstdc++-v3/libsupc++/eh_alloc.cc:280
280 {
(gdb) bt
#0 __cxxabiv1::__cxa_allocate_exception (thrown_size=8) at
../../../../libstdc++-v3/libsupc++/eh_alloc.cc:280
#1 0x00000000004009b3 in main (argc=1, argv=0x7fffffffe2f8) at t-throw.cc:10</pre>
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