Implement xfer:libraries-svr4:read packet

Summary:
This is the fourth patch to improve module loading in a series that started here (where I explain the motivation and solution): D62499

Implement the `xfer:libraries-svr4` packet by adding a new function that generates the list and then in Handle_xfer I generate the XML for it. The XML is really simple so I'm just using string concatenation because I believe it's more readable than having to deal with a DOM api.

Reviewers: clayborg, xiaobai, labath

Reviewed By: labath

Subscribers: emaste, mgorny, srhines, krytarowski, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62502

llvm-svn: 363707

1 files changed, 15 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/tools/lldb-server/libraries-svr4/main.cpp b/lldb/packages/Python/lldbsuite/test/tools/lldb-server/libraries-svr4/main.cpp
new file mode 100644
index 00000000000..b62ca71b561
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/tools/lldb-server/libraries-svr4/main.cpp
@@ -0,0 +1,15 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+int main(int argc, char **argv) {
+  // Perform a null pointer access.
+  int *const null_int_ptr = nullptr;
+  *null_int_ptr = 0xDEAD;
+
+  return 0;
+}