Consolidate UnixSignals setting/getting in Process.

See http://reviews.llvm.org/D5108 for details.

This change does the following:

* eliminates the Process::GetUnixSignals() virtual method and replaces with a fixed getter.
* replaces the Process UnixSignals storage with a shared pointer.
* adds a Process constructor variant that can be passed the UnixSignalsSP. When the constructor without the UnixSignalsSP is specified, the Host's default UnixSignals is used.
* adds a host-specific version of GetUnixSignals() that is used when we need the host's appropriate UnixSignals variant.
* replaces GetUnixSignals() overrides in PlatformElfCore, ProcessGDBRemote, ProcessFreeBSD and ProcessLinux with code that appropriately sets the Process::UnixSignals for the process.

This change also enables some future patches that will enable llgs to be used for local Linux debugging.

llvm-svn: 216748

1 files changed, 9 insertions, 0 deletions

diff --git a/lldb/source/Host/linux/Host.cpp b/lldb/source/Host/linux/Host.cpp
index a7cca2cb44f..0bad90ee22e 100644
--- a/lldb/source/Host/linux/Host.cpp
+++ b/lldb/source/Host/linux/Host.cpp
@@ -30,6 +30,7 @@
 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "Plugins/Process/Linux/ProcFileReader.h"
+#include "Plugins/Process/Utility/LinuxSignals.h"
 
 using namespace lldb;
 using namespace lldb_private;
@@ -424,3 +425,11 @@ Host::GetEnvironment (StringList &env)
         env.AppendString(env_entry);
     return i;
 }
+
+const lldb_private::UnixSignalsSP&
+Host::GetUnixSignals ()
+{
+    static const lldb_private::UnixSignalsSP s_unix_signals_sp (new process_linux::LinuxSignals ());
+    return s_unix_signals_sp;
+}
+