Add lldb-gdbserver support for Linux x86_64.

This change brings in lldb-gdbserver (llgs) specifically for Linux x86_64.
(More architectures coming soon).

Not every debugserver option is covered yet.  Currently
the lldb-gdbserver command line can start unattached,
start attached to a pid (process-name attach not supported yet),
or accept lldb attaching and launching a process or connecting
by process id.

The history of this large change can be found here:
https://github.com/tfiala/lldb/tree/dev-tfiala-native-protocol-linux-x86_64

Until mid/late April, I was not sharing the work and continued
to rebase it off of head (developed via id tfiala@google.com).  I switched over to
user todd.fiala@gmail.com in the middle, and once I went to github, I did
merges rather than rebasing so I could share with others.

llvm-svn: 212069

1 files changed, 9 insertions, 6 deletions

diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
index e6ef1fb8acf..b9b9dca07be 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_i386.cpp
@@ -100,18 +100,14 @@ RegisterContextLinux_i386::RegisterContextLinux_i386(const ArchSpec &target_arch
 {
 }
 
-RegisterContextLinux_i386::~RegisterContextLinux_i386()
-{
-}
-
 size_t
-RegisterContextLinux_i386::GetGPRSize()
+RegisterContextLinux_i386::GetGPRSize() const
 {
     return sizeof(GPR);
 }
 
 const RegisterInfo *
-RegisterContextLinux_i386::GetRegisterInfo()
+RegisterContextLinux_i386::GetRegisterInfo() const
 {
     switch (m_target_arch.GetMachine())
     {
@@ -122,3 +118,10 @@ RegisterContextLinux_i386::GetRegisterInfo()
             return NULL;
     }
 }
+
+uint32_t
+RegisterContextLinux_i386::GetRegisterCount () const
+{
+    return static_cast<uint32_t> (sizeof (g_register_infos_i386) / sizeof (g_register_infos_i386 [0]));
+}
+