Implement initial Altivec support

Summary:
This adds the register plumbing, as well as register reading in FreeBSD core
dumps.  Further work on the POSIX/FreeBSD ProcessMonitor is required in order to
support ptrace access to these registers.

Reviewers: tfiala, emaste

Reviewed By: emaste

Subscribers: emaste, lldb-commits

Differential Revision: http://reviews.llvm.org/D7039

llvm-svn: 228278

2 files changed, 23 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.cpp b/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.cpp
index c0bce1120dc..80e1c198422 100644
--- a/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.cpp
+++ b/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.cpp
@@ -50,6 +50,13 @@ RegisterContextPOSIXProcessMonitor_powerpc::ReadFPR()
 }
 
 bool
+RegisterContextPOSIXProcessMonitor_powerpc::ReadVMX()
+{
+    // XXX: Need a way to read/write process VMX registers with ptrace.
+    return false;
+}
+
+bool
 RegisterContextPOSIXProcessMonitor_powerpc::WriteGPR()
 {
     ProcessMonitor &monitor = GetMonitor();
@@ -64,6 +71,13 @@ RegisterContextPOSIXProcessMonitor_powerpc::WriteFPR()
 }
 
 bool
+RegisterContextPOSIXProcessMonitor_powerpc::WriteVMX()
+{
+    // XXX: Need a way to read/write process VMX registers with ptrace.
+    return false;
+}
+
+bool
 RegisterContextPOSIXProcessMonitor_powerpc::ReadRegister(const unsigned reg,
                                                         RegisterValue &value)
 {
diff --git a/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.h b/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.h
index 92a33128551..5c686df4836 100644
--- a/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.h
+++ b/lldb/source/Plugins/Process/POSIX/RegisterContextPOSIXProcessMonitor_powerpc.h
@@ -23,17 +23,26 @@ public:
 
 protected:
     bool
+    IsVMX();
+
+    bool
     ReadGPR();
 
     bool
     ReadFPR();
 
     bool
+    ReadVMX();
+
+    bool
     WriteGPR();
 
     bool
     WriteFPR();
 
+    bool
+    WriteVMX();
+
     // lldb_private::RegisterContext
     bool
     ReadRegister(const unsigned reg, lldb_private::RegisterValue &value);