MdeModulePkg/Include/Library/DebugAgentLib.h

   1 /** @file
   2   Debug Agent Library provide source-level debug capability.
   3
   4 Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __DEBUG_AGENT_LIB_H__
  10 #define __DEBUG_AGENT_LIB_H__
  11
  12 #define DEBUG_AGENT_INIT_PREMEM_SEC           1
  13 #define DEBUG_AGENT_INIT_POSTMEM_SEC          2
  14 #define DEBUG_AGENT_INIT_DXE_CORE             3
  15 #define DEBUG_AGENT_INIT_SMM                  4
  16 #define DEBUG_AGENT_INIT_ENTER_SMI            5
  17 #define DEBUG_AGENT_INIT_EXIT_SMI             6
  18 #define DEBUG_AGENT_INIT_S3                   7
  19 #define DEBUG_AGENT_INIT_DXE_AP               8
  20 #define DEBUG_AGENT_INIT_PEI                  9
  21 #define DEBUG_AGENT_INIT_DXE_LOAD             10
  22 #define DEBUG_AGENT_INIT_DXE_UNLOAD           11
  23 #define DEBUG_AGENT_INIT_THUNK_PEI_IA32TOX64  12
  24
  25 //
  26 // Context for DEBUG_AGENT_INIT_POSTMEM_SEC
  27 //
  28 typedef struct {
  29   UINTN    HeapMigrateOffset;
  30   UINTN    StackMigrateOffset;
  31 } DEBUG_AGENT_CONTEXT_POSTMEM_SEC;
  32
  33 /**
  34   Caller provided function to be invoked at the end of InitializeDebugAgent().
  35
  36   Refer to the description for InitializeDebugAgent() for more details.
  37
  38   @param[in] Context    The first input parameter of InitializeDebugAgent().
  39
  40 **/
  41 typedef
  42 VOID
  43 (EFIAPI *DEBUG_AGENT_CONTINUE)(
  44   IN VOID        *Context
  45   );
  46
  47 /**
  48   Initialize debug agent.
  49
  50   This function is used to set up debug environment to support source level debugging.
  51   If certain Debug Agent Library instance has to save some private data in the stack,
  52   this function must work on the mode that doesn't return to the caller, then
  53   the caller needs to wrap up all rest of logic after InitializeDebugAgent() into one
  54   function and pass it into InitializeDebugAgent(). InitializeDebugAgent() is
  55   responsible to invoke the passing-in function at the end of InitializeDebugAgent().
  56
  57   If the parameter Function is not NULL, Debug Agent Library instance will invoke it by
  58   passing in the Context to be its parameter.
  59
  60   If Function() is NULL, Debug Agent Library instance will return after setup debug
  61   environment.
  62
  63   @param[in] InitFlag     Init flag is used to decide the initialize process.
  64   @param[in] Context      Context needed according to InitFlag; it was optional.
  65   @param[in] Function     Continue function called by debug agent library; it was
  66                           optional.
  67
  68 **/
  69 VOID
  70 EFIAPI
  71 InitializeDebugAgent (
  72   IN UINT32                InitFlag,
  73   IN VOID                  *Context  OPTIONAL,
  74   IN DEBUG_AGENT_CONTINUE  Function  OPTIONAL
  75   );
  76
  77 /**
  78   Enable/Disable the interrupt of debug timer and return the interrupt state
  79   prior to the operation.
  80
  81   If EnableStatus is TRUE, enable the interrupt of debug timer.
  82   If EnableStatus is FALSE, disable the interrupt of debug timer.
  83
  84   @param[in] EnableStatus    Enable/Disable.
  85
  86   @retval TRUE  Debug timer interrupt were enabled on entry to this call.
  87   @retval FALSE Debug timer interrupt were disabled on entry to this call.
  88
  89 **/
  90 BOOLEAN
  91 EFIAPI
  92 SaveAndSetDebugTimerInterrupt (
  93   IN BOOLEAN  EnableStatus
  94   );
  95
  96 #endif