From c1c19a6f0266f77c6177f5f54c9955be5abc93d8 Mon Sep 17 00:00:00 2001
From: Jim Ingham <jingham@apple.com>
Date: Thu, 19 Apr 2012 16:57:50 +0000
Subject: In debug mode, assert when we fail to get the sequence mutex.  We
 need to remove as many places where this can happen as possible.

llvm-svn: 155138
---
 .../gdb-remote/GDBRemoteRegisterContext.cpp        | 27 ++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp')

diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
index 7ace1ebe477..70ffacbcc4e 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
@@ -245,6 +245,12 @@ GDBRemoteRegisterContext::ReadRegisterBytes (const RegisterInfo *reg_info, DataE
         else
         {
             LogSP log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet (GDBR_LOG_THREAD | GDBR_LOG_PACKETS));
+#if LLDB_CONFIGURATION_DEBUG
+            StreamString strm;
+            gdb_comm.DumpHistory(strm);
+            Host::SetCrashDescription (strm.GetData());
+            assert (!"Didn't get sequence mutex for read register.");
+#else
             if (log)
             {
                 if (log->GetVerbose())
@@ -258,6 +264,7 @@ GDBRemoteRegisterContext::ReadRegisterBytes (const RegisterInfo *reg_info, DataE
                     log->Printf("error: failed to get packet sequence mutex, not sending read register for \"%s\"", reg_info->name);
                 }
             }
+#endif
         }
 
         // Make sure we got a valid register value after reading it
@@ -441,6 +448,12 @@ GDBRemoteRegisterContext::WriteRegisterBytes (const lldb_private::RegisterInfo *
         else
         {
             LogSP log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet (GDBR_LOG_THREAD | GDBR_LOG_PACKETS));
+#if LLDB_CONFIGURATION_DEBUG
+            StreamString strm;
+            gdb_comm.DumpHistory(strm);
+            Host::SetCrashDescription (strm.GetData());
+            assert (!"Didn't get sequence mutex.");
+#else
             if (log)
             {
                 if (log->GetVerbose())
@@ -452,6 +465,7 @@ GDBRemoteRegisterContext::WriteRegisterBytes (const lldb_private::RegisterInfo *
                 else
                     log->Printf("error: failed to get packet sequence mutex, not sending write register for \"%s\"", reg_info->name);
             }
+#endif
         }
     }
     return false;
@@ -511,6 +525,12 @@ GDBRemoteRegisterContext::ReadAllRegisterValues (lldb::DataBufferSP &data_sp)
     else
     {
         LogSP log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet (GDBR_LOG_THREAD | GDBR_LOG_PACKETS));
+#if LLDB_CONFIGURATION_DEBUG
+        StreamString strm;
+        gdb_comm.DumpHistory(strm);
+        Host::SetCrashDescription (strm.GetData());
+        assert (!"Didn't get sequence mutex.");
+#else
         if (log)
         {
             if (log->GetVerbose())
@@ -522,6 +542,7 @@ GDBRemoteRegisterContext::ReadAllRegisterValues (lldb::DataBufferSP &data_sp)
             else
                 log->Printf("error: failed to get packet sequence mutex, not sending read all registers");
         }
+#endif
     }
 
     data_sp.reset();
@@ -644,12 +665,14 @@ GDBRemoteRegisterContext::WriteAllRegisterValues (const lldb::DataBufferSP &data
     else
     {
         LogSP log (ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet (GDBR_LOG_THREAD | GDBR_LOG_PACKETS));
-        if (log)
+        if (1 /* log */)
         {
-            if (log->GetVerbose())
+            if (1 /*log->GetVerbose() */)
             {
                 StreamString strm;
                 gdb_comm.DumpHistory(strm);
+                Host::SetCrashDescription (strm.GetData());
+                assert (!"Didn't get sequence mutex.");
                 log->Printf("error: failed to get packet sequence mutex, not sending write all registers:\n%s", strm.GetData());
             }
             else
-- 
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