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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 - UTF8 data printed differently before and after program start"
href="https://bugs.llvm.org/show_bug.cgi?id=45856">45856</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>UTF8 data printed differently before and after program start
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>pro.mathias.lang@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>jdevlieghere@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>test.cpp:
```
extern const char8_t data[12] = u8"Hello World";
int main () { return 0; }
```
Compiled with `clang++ -g -std=c++2a test.cpp`.
Running it under LLDB:
```
(lldb) target create "./a.out"
Current executable set to
'/Users/geod24/projects/dlang/llvm-project/lldb/a.out' (x86_64).
(lldb) p data
(const char8_t [12]) $0 = {
[0] = 0x48 u8'H'
[1] = 0x65 u8'e'
[2] = 0x6c u8'l'
[3] = 0x6c u8'l'
[4] = 0x6f u8'o'
[5] = 0x20 u8' '
[6] = 0x57 u8'W'
[7] = 0x6f u8'o'
[8] = 0x72 u8'r'
[9] = 0x6c u8'l'
[10] = 0x64 u8'd'
[11] = 0x00 u8'\0'
}
(lldb) b main
Breakpoint 1: where = a.out`main + 13 at test.cpp:2:15, address =
0x0000000100000f9d
(lldb) run
Process 54857 launched: '/Users/geod24/projects/dlang/llvm-project/lldb/a.out'
(x86_64)
Process 54857 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100000f9d a.out`main at test.cpp:2:15
1 extern const char8_t data[12] = u8"Hello World";
-> 2 int main () { return 0; }
Target 0: (a.out) stopped.
(lldb) p data
(const char8_t [12]) $1 = u8"Hello World"
```
I would expect the output to be consistent before and after the program
started.
Tested under MacOSX 10.15, with the latest lldb (f058d397ff8). The issue isn't
C++ specific, as it was found while working on <a href="https://reviews.llvm.org/D79559">https://reviews.llvm.org/D79559</a>
.</pre>
</div>
</p>
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