Implement -target-attach and -target-detach

Summary:
This changes add -target-attach and -target-detach. 

-target-attach allows lldb-mi to attach to an existing process by it's process id, matching gdb mi's syntax of '-target-attach <pid'. Additionally, support has been added for attaching to a process by name using '-target-attach -n <name>'. Combining this with --waitfor will allow lldb mi to attach to a process by name when the process starts. 

-target-detach simply detaches from the current process

Patch from chuckr@microsoft.com

Test Plan: I have added three tests, one each for -target-attach <pid>, -target-attach -n <name>, and -target-attach -n <name> --waitfor

Reviewers: paulmaybee, abidh, ChuckR

Subscribers: greggm, lldb-commits

Differential Revision: http://reviews.llvm.org/D9484

llvm-svn: 236705

1 files changed, 21 insertions, 0 deletions

diff --git a/lldb/test/tools/lldb-mi/target/test_attach.cpp b/lldb/test/tools/lldb-mi/target/test_attach.cpp
new file mode 100644
index 00000000000..caaf33a46fa
--- /dev/null
+++ b/lldb/test/tools/lldb-mi/target/test_attach.cpp
@@ -0,0 +1,21 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <cstdio>
+
+int
+main(int argc, char const *argv[]) 
+{
+    int i = 0;
+    for (;;)
+    {
+        i++; // BP_i++
+    }
+    return 0;
+}