1 files changed, 68 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdHelp.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdHelp.c
new file mode 100644
index 00000000..8a630afa
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdHelp.c
@@ -0,0 +1,68 @@
+/** @file
+
+Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+
+**/
+
+#include "Edb.h"
+
+/**
+
+  DebuggerCommand - Help.
+
+  @param  CommandArg      - The argument for this command
+  @param  DebuggerPrivate - EBC Debugger private data structure
+  @param  ExceptionType   - Interrupt type.
+  @param  SystemContext   - EBC system context.
+
+  @retval EFI_DEBUG_CONTINUE - formal return value
+
+**/
+EFI_DEBUG_STATUS
+DebuggerHelp (
+  IN     CHAR16                    *CommandArg,
+  IN     EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
+  IN     EFI_EXCEPTION_TYPE        ExceptionType,
+  IN OUT EFI_SYSTEM_CONTEXT        SystemContext
+  )
+{
+  UINTN Index;
+
+  //
+  // if no argument, print all the command title
+  //
+  if (CommandArg == NULL) {
+    for (Index = 0; DebuggerPrivate->DebuggerCommandSet[Index].CommandName != NULL; Index++) {
+      EDBPrint (DebuggerPrivate->DebuggerCommandSet[Index].ClassName);
+      if (StrCmp (DebuggerPrivate->DebuggerCommandSet[Index].CommandTitle, L"") != 0) {
+        EDBPrint (L"  ");
+        EDBPrint (DebuggerPrivate->DebuggerCommandSet[Index].CommandTitle);
+      }
+    }
+    return EFI_DEBUG_CONTINUE;
+  }
+
+  //
+  // If there is argument, the argument should be command name.
+  // Find the command and print the detail information.
+  //
+  for (Index = 0; DebuggerPrivate->DebuggerCommandSet[Index].CommandName != NULL; Index++) {
+    if (StriCmp (CommandArg, DebuggerPrivate->DebuggerCommandSet[Index].CommandName) == 0) {
+      EDBPrint (DebuggerPrivate->DebuggerCommandSet[Index].CommandHelp);
+      EDBPrint (DebuggerPrivate->DebuggerCommandSet[Index].CommandSyntax);
+      return EFI_DEBUG_CONTINUE;
+    }
+  }
+
+  //
+  // Command not found.
+  //
+  EDBPrint (L"No help info for this command\n");
+
+  //
+  // Done
+  //
+  return EFI_DEBUG_CONTINUE;
+}