1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/llvm/tools/lldb/source/Host/common/SoftwareBreakpoint.h b/contrib/llvm/tools/lldb/source/Host/common/SoftwareBreakpoint.h
new file mode 100644
index 0000000..1fed19e
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Host/common/SoftwareBreakpoint.h
@@ -0,0 +1,51 @@
+//===-- SoftwareBreakpoint.h ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_SoftwareBreakpoint_h_
+#define liblldb_SoftwareBreakpoint_h_
+
+#include "lldb/lldb-private-forward.h"
+#include "NativeBreakpoint.h"
+
+namespace lldb_private
+{
+    class SoftwareBreakpoint : public NativeBreakpoint
+    {
+    public:
+        static Error
+        CreateSoftwareBreakpoint (NativeProcessProtocol &process, lldb::addr_t addr, size_t size_hint, NativeBreakpointSP &breakpoint_spn);
+
+        SoftwareBreakpoint (NativeProcessProtocol &process, lldb::addr_t addr, const uint8_t *saved_opcodes, const uint8_t *trap_opcodes, size_t opcode_size);
+
+    protected:
+        Error
+        DoEnable () override;
+
+        Error
+        DoDisable () override;
+
+        bool
+        IsSoftwareBreakpoint () const override;
+
+    private:
+        /// Max number of bytes that a software trap opcode sequence can occupy.
+        static const size_t MAX_TRAP_OPCODE_SIZE = 8;
+
+        NativeProcessProtocol &m_process;
+        uint8_t m_saved_opcodes [MAX_TRAP_OPCODE_SIZE];
+        uint8_t m_trap_opcodes [MAX_TRAP_OPCODE_SIZE];
+        const size_t m_opcode_size;
+
+        static Error
+        EnableSoftwareBreakpoint (NativeProcessProtocol &process, lldb::addr_t addr, size_t bp_opcode_size, const uint8_t *bp_opcode_bytes, uint8_t *saved_opcode_bytes);
+
+    };
+}
+
+#endif // #ifndef liblldb_SoftwareBreakpoint_h_