[LLDB][MIPS] Read/Write register for MIPS64

Patch by Sagar Thakur

Reviewers: clayborg, tberghammer.

Subscribers: jaydeep, bhushan, mohit.bhakkad, llvm-commits.

Differential Revision: http://reviews.llvm.org/D8695

llvm-svn: 233685

1 files changed, 19 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
index 0dfee5ef473..6f3aa685e65 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
@@ -657,6 +657,17 @@ namespace
                     m_error.SetErrorString("failed to get architecture");
             }
         }
+#elif defined (__mips__)
+        elf_gregset_t regs;
+        PTRACE(PTRACE_GETREGS, m_tid, NULL, &regs, sizeof regs, m_error);
+        if (m_error.Success())
+        {
+            lldb_private::ArchSpec arch;
+            if (monitor->GetArchitecture(arch))
+                m_value.SetBytes((void *)(((unsigned char *)(regs)) + m_offset), 8, arch.GetByteOrder());
+            else
+                m_error.SetErrorString("failed to get architecture");
+        }
 #else
         Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_REGISTERS));
 
@@ -733,6 +744,14 @@ namespace
                 PTRACE(PTRACE_SETREGSET, m_tid, &regset, &ioVec, sizeof regs, m_error);
             }
         }
+#elif defined (__mips__)
+        elf_gregset_t regs;
+        PTRACE(PTRACE_GETREGS, m_tid, NULL, &regs, sizeof regs, m_error);
+        if (m_error.Success())
+        {
+            ::memcpy((void *)(((unsigned char *)(&regs)) + m_offset), m_value.GetBytes(), 8);
+            PTRACE(PTRACE_SETREGS, m_tid, NULL, &regs, sizeof regs, m_error);
+        }
 #else
         void* buf;
         Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_REGISTERS));