Refactor Unix signals.

Summary:
- Consolidate Unix signals selection in UnixSignals.
- Make Unix signals available from platform.
- Add jSignalsInfo packet to retrieve Unix signals from remote platform.
- Get a copy of the platform signal for each remote process.
- Update SB API for signals.
- Update signal utility in test suite.

Reviewers: ovyalov, clayborg

Subscribers: chaoren, jingham, labath, emaste, tberghammer, lldb-commits

Differential Revision: http://reviews.llvm.org/D11094

llvm-svn: 242101
diff --git a/lldb/source/Host/linux/Host.cpp b/lldb/source/Host/linux/Host.cpp
index dddd2f3..6217b1d 100644
--- a/lldb/source/Host/linux/Host.cpp
+++ b/lldb/source/Host/linux/Host.cpp
@@ -36,8 +36,7 @@
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "Plugins/Process/Linux/ProcFileReader.h"
-#include "Plugins/Process/Utility/LinuxSignals.h"
-#include "Plugins/Process/Utility/MipsLinuxSignals.h"
+
 using namespace lldb;
 using namespace lldb_private;
 
@@ -390,26 +389,6 @@
     return i;
 }
 
-// TODO: Generalize this with a function Host::GetSignals() as discussed at http://reviews.llvm.org/D10180 
-const lldb_private::UnixSignalsSP&
-Host::GetUnixSignals ()
-{
-    ArchSpec target_arch = HostInfoBase::GetArchitecture();
-    if(target_arch.GetTriple ().getArch () == llvm::Triple::mips64 ||
-       target_arch.GetTriple ().getArch () == llvm::Triple::mips64el ||
-       target_arch.GetTriple ().getArch () == llvm::Triple::mips ||
-       target_arch.GetTriple ().getArch () == llvm::Triple::mipsel) {
-        static const lldb_private::UnixSignalsSP s_unix_signals_sp (new process_linux::MipsLinuxSignals ());
-        return s_unix_signals_sp;
-    }
-    else
-    {
-        static const lldb_private::UnixSignalsSP s_unix_signals_sp (new process_linux::LinuxSignals ());
-        return s_unix_signals_sp;
-    }
-
-}
-
 Error
 Host::ShellExpandArguments (ProcessLaunchInfo &launch_info)
 {