https://bugs.llvm.org/show_bug.cgi?id=40943
Bug ID: 40943
Summary: lldb crashes (on linux) when debugging optimized code
(-O2)
Product: lldb
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: dav...@freebsd.org
CC: apra...@apple.com, lab...@google.com,
llvm-b...@lists.llvm.org, ztur...@google.com
$ cat outer.c
void optimize_me_not() {}
$ cat abc.c
a;
main() {
optimize_me_not();
{
int b[1];
b[0] = 1;
a = 0;
}
}
$ clang-trunk abc.c /home/davide/reduce-crash/outer.c -g -O2 -o a.out
$
$ cat cmds
b 3
r
kill
quit
$ lldb-trunk a.out -s cmds -b
(lldb) target create "a.out"
Current executable set to 'a.out' (x86_64).
(lldb) command source -s 0 'cmds'
Executing commands in '/home/davide/reduce-crash/cmds'.
Segmentation fault (core dumped)
$ clang-trunk --version
clang version 9.0.0 (trunk 355281)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
$ lldb-trunk --version
lldb version 9.0.0 (https://llvm.org/svn/llvm-project/lldb/trunk revision
355281)
clang revision 355281
llvm revision 355281
$ uname -a
Linux 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC 2019 x86_64
x86_64 x86_64 GNU/Linux
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