diff --git a/lldb/source/Plugins/Process/AIX/Ptrace.h b/lldb/source/Plugins/Process/AIX/Ptrace.h
new file mode 100644
index 0000000000000..06678d1e1a248
--- /dev/null
+++ b/lldb/source/Plugins/Process/AIX/Ptrace.h
@@ -0,0 +1,42 @@
+//===-- Ptrace.h ------------------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+// This file defines ptrace functions & structures
+
+#ifndef LIBLLDB_HOST_AIX_PTRACE_H_
+#define LIBLLDB_HOST_AIX_PTRACE_H_
+
+#include <sys/ptrace.h>
+
+// Support ptrace extensions even when compiled without required kernel support
+#ifndef PTRACE_GETREGS
+#define PTRACE_GETREGS (PT_COMMAND_MAX + 1)
+#endif
+#ifndef PTRACE_SETREGS
+#define PTRACE_SETREGS (PT_COMMAND_MAX + 2)
+#endif
+#ifndef PTRACE_GETFPREGS
+#define PTRACE_GETFPREGS (PT_COMMAND_MAX + 3)
+#endif
+#ifndef PTRACE_SETFPREGS
+#define PTRACE_SETFPREGS (PT_COMMAND_MAX + 4)
+#endif
+#ifndef PTRACE_GETREGSET
+#define PTRACE_GETREGSET 0x4204
+#endif
+#ifndef PTRACE_SETREGSET
+#define PTRACE_SETREGSET 0x4205
+#endif
+#ifndef PTRACE_GETVRREGS
+#define PTRACE_GETVRREGS (PT_COMMAND_MAX + 5)
+#endif
+#ifndef PTRACE_GETVSRREGS
+#define PTRACE_GETVSRREGS (PT_COMMAND_MAX + 6)
+#endif
+
+#endif // LIBLLDB_HOST_AIX_PTRACE_H_