[Lldb-commits] [lldb] [LLDB][Process/Utility] Introduce NativeRegisterContextDBReg class (PR #118043)

[via lldb-commits]

================
@@ -0,0 +1,401 @@
+//===-- NativeRegisterContextDBReg.cpp ------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "NativeRegisterContextDBReg.h"
+
+#include "lldb/Utility/LLDBLog.h"
+#include "lldb/Utility/Log.h"
+#include "lldb/Utility/RegisterValue.h"
+
+using namespace lldb_private;
+
+uint32_t NativeRegisterContextDBReg::NumSupportedHardwareBreakpoints() {
+  Log *log = GetLog(LLDBLog::Breakpoints);
+
+  // Read hardware breakpoint and watchpoint information.
+  Status error = ReadHardwareDebugInfo();
+
+  if (error.Fail()) {
+    LLDB_LOG(log, "failed to read debug registers");
+    return 0;
+  }
+
+  LLDB_LOG(log, "{0}", m_max_hbp_supported);
+  return m_max_hbp_supported;
+}
+
+uint32_t NativeRegisterContextDBReg::SetHardwareBreakpoint(lldb::addr_t addr,
+                                                           size_t size) {
+  Log *log = GetLog(LLDBLog::Breakpoints);
+  LLDB_LOG(log, "addr: {0:x}, size: {1:x}", addr, size);
+
+  // Read hardware breakpoint and watchpoint information.
+  Status error = ReadHardwareDebugInfo();
+  if (error.Fail()) {
+    LLDB_LOG(log,
+             "unable to set breakpoint: failed to read debug registers: {0}");
+    return LLDB_INVALID_INDEX32;
+  }
+
+  uint32_t control_value = 0, bp_index = 0;
+
+  // Check hardware breakpoint size and address.
----------------
wangleiat wrote:

Thank you, I will remove the redundant comments.

https://github.com/llvm/llvm-project/pull/118043