[Reproducers] SBReproducer framework: Capture & Replay

This is part two of the reproducer instrumentation framework. It
contains the code to capture and replay function calls. The main user of
this framework will be the SB API layer.

For all the details refer to the RFC on the mailing list:
http://lists.llvm.org/pipermail/lldb-dev/2019-January/014530.html

Differential revision: https://reviews.llvm.org/D56322

llvm-svn: 353324

1 files changed, 13 insertions, 1 deletions

diff --git a/lldb/tools/driver/Driver.cpp b/lldb/tools/driver/Driver.cpp
index 8d7decde776..45effa4e518 100644
--- a/lldb/tools/driver/Driver.cpp
+++ b/lldb/tools/driver/Driver.cpp
@@ -13,6 +13,7 @@
 #include "lldb/API/SBDebugger.h"
 #include "lldb/API/SBHostOS.h"
 #include "lldb/API/SBLanguageRuntime.h"
+#include "lldb/API/SBReproducer.h"
 #include "lldb/API/SBStream.h"
 #include "lldb/API/SBStringList.h"
 
@@ -888,8 +889,10 @@ main(int argc, char const *argv[])
                          << '\n';
   }
 
-  SBInitializerOptions options;
+  // Remember if we're in replay mode for later.
+  bool replay = false;
 
+  SBInitializerOptions options;
   if (auto *arg = input_args.getLastArg(OPT_capture)) {
     auto arg_value = arg->getValue();
     options.SetReproducerPath(arg_value);
@@ -900,6 +903,7 @@ main(int argc, char const *argv[])
     auto arg_value = arg->getValue();
     options.SetReplayReproducer(true);
     options.SetReproducerPath(arg_value);
+    replay = true;
   }
 
   SBError error = SBDebugger::Initialize(options);
@@ -909,6 +913,14 @@ main(int argc, char const *argv[])
     return 1;
   }
 
+  if (replay) {
+    SBReproducer reproducer;
+    if (!reproducer.Replay()) {
+      WithColor::error() << "something went wrong running the reporducer.\n";
+    }
+    return 0;
+  }
+
   SBHostOS::ThreadCreated("<lldb.driver.main-thread>");
 
   signal(SIGINT, sigint_handler);