1 files changed, 79 insertions, 0 deletions
diff --git a/source/Core/DumpRegisterValue.cpp b/source/Core/DumpRegisterValue.cpp
new file mode 100644
index 0000000000000..99334ca78a6d4
--- /dev/null
+++ b/source/Core/DumpRegisterValue.cpp
@@ -0,0 +1,79 @@
+//===-- DumpRegisterValue.cpp -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Core/DumpRegisterValue.h"
+#include "lldb/Core/DumpDataExtractor.h"
+#include "lldb/Core/RegisterValue.h"
+#include "lldb/Utility/DataExtractor.h"
+#include "lldb/Utility/StreamString.h"
+#include "lldb/lldb-private-types.h"
+
+using namespace lldb;
+
+bool lldb_private::DumpRegisterValue(const RegisterValue &reg_val, Stream *s,
+                                     const RegisterInfo *reg_info,
+                                     bool prefix_with_name,
+                                     bool prefix_with_alt_name, Format format,
+                                     uint32_t reg_name_right_align_at) {
+  DataExtractor data;
+  if (reg_val.GetData(data)) {
+    bool name_printed = false;
+    // For simplicity, alignment of the register name printing applies only in
+    // the most common case where:
+    //
+    //     prefix_with_name^prefix_with_alt_name is true
+    //
+    StreamString format_string;
+    if (reg_name_right_align_at && (prefix_with_name ^ prefix_with_alt_name))
+      format_string.Printf("%%%us", reg_name_right_align_at);
+    else
+      format_string.Printf("%%s");
+    std::string fmt = format_string.GetString();
+    if (prefix_with_name) {
+      if (reg_info->name) {
+        s->Printf(fmt.c_str(), reg_info->name);
+        name_printed = true;
+      } else if (reg_info->alt_name) {
+        s->Printf(fmt.c_str(), reg_info->alt_name);
+        prefix_with_alt_name = false;
+        name_printed = true;
+      }
+    }
+    if (prefix_with_alt_name) {
+      if (name_printed)
+        s->PutChar('/');
+      if (reg_info->alt_name) {
+        s->Printf(fmt.c_str(), reg_info->alt_name);
+        name_printed = true;
+      } else if (!name_printed) {
+        // No alternate name but we were asked to display a name, so show the
+        // main name
+        s->Printf(fmt.c_str(), reg_info->name);
+        name_printed = true;
+      }
+    }
+    if (name_printed)
+      s->PutCString(" = ");
+
+    if (format == eFormatDefault)
+      format = reg_info->format;
+
+    DumpDataExtractor(data, s,
+                      0,                    // Offset in "data"
+                      format,               // Format to use when dumping
+                      reg_info->byte_size,  // item_byte_size
+                      1,                    // item_count
+                      UINT32_MAX,           // num_per_line
+                      LLDB_INVALID_ADDRESS, // base_addr
+                      0,                    // item_bit_size
+                      0);                   // item_bit_offset
+    return true;
+  }
+  return false;
+}