vendor/llvm-project/llvmorg-11-init-20887-g2e10b7a39b9vendor/llvm-project/master

1 files changed, 30 insertions, 1 deletions

diff --git a/lldb/source/Target/RegisterContext.cpp b/lldb/source/Target/RegisterContext.cpp
index f29cf435d028..cdc7653cea6d 100644
--- a/lldb/source/Target/RegisterContext.cpp
+++ b/lldb/source/Target/RegisterContext.cpp
@@ -1,4 +1,4 @@
-//===-- RegisterContext.cpp -------------------------------------*- C++ -*-===//
+//===-- RegisterContext.cpp -----------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -274,6 +274,24 @@ uint32_t RegisterContext::SetHardwareBreakpoint(lldb::addr_t addr,
   return LLDB_INVALID_INDEX32;
 }
 
+// Used when parsing DWARF and EH frame information and any other object file
+// sections that contain register numbers in them.
+uint32_t
+RegisterContext::ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
+                                                     uint32_t num) {
+  const uint32_t num_regs = GetRegisterCount();
+
+  assert(kind < kNumRegisterKinds);
+  for (uint32_t reg_idx = 0; reg_idx < num_regs; ++reg_idx) {
+    const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_idx);
+
+    if (reg_info->kinds[kind] == num)
+      return reg_idx;
+  }
+
+  return LLDB_INVALID_REGNUM;
+}
+
 bool RegisterContext::ClearHardwareBreakpoint(uint32_t hw_idx) { return false; }
 
 uint32_t RegisterContext::NumSupportedHardwareWatchpoints() { return 0; }
@@ -397,6 +415,17 @@ Status RegisterContext::WriteRegisterValueToMemory(
   return error;
 }
 
+lldb::ByteOrder RegisterContext::GetByteOrder() {
+  // Get the target process whose privileged thread was used for the register
+  // read.
+  lldb::ByteOrder byte_order = lldb::eByteOrderInvalid;
+  lldb_private::Process *process = CalculateProcess().get();
+
+  if (process)
+    byte_order = process->GetByteOrder();
+  return byte_order;
+}
+
 bool RegisterContext::ReadAllRegisterValues(
     lldb_private::RegisterCheckpoint &reg_checkpoint) {
   return ReadAllRegisterValues(reg_checkpoint.GetData());