+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2006 - 2007, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
-\r
- DebugImageInfo.c\r
- \r
-Abstract:\r
-\r
- Support functions for managing debug image info table when loading and unloading\r
- images.\r
-\r
---*/\r
-\r
-#include <DxeMain.h>\r
-\r
-\r
-static EFI_DEBUG_IMAGE_INFO_TABLE_HEADER mDebugInfoTableHeader = {\r
- 0, // volatile UINT32 UpdateStatus;\r
- 0, // UINT32 TableSize;\r
- NULL // EFI_DEBUG_IMAGE_INFO *EfiDebugImageInfoTable;\r
-};\r
-\r
-static EFI_SYSTEM_TABLE_POINTER *mDebugTable = NULL;\r
-\r
- \r
-VOID\r
-CoreInitializeDebugImageInfoTable (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Creates and initializes the DebugImageInfo Table. Also creates the configuration\r
- table and registers it into the system table.\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- NA\r
-\r
-Notes:\r
- This function allocates memory, frees it, and then allocates memory at an\r
- address within the initial allocation. Since this function is called early\r
- in DXE core initialization (before drivers are dispatched), this should not\r
- be a problem.\r
-\r
---*/\r
-{ \r
- EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS Mem;\r
- UINTN NumberOfPages; \r
-\r
- //\r
- // Allocate boot services memory for the structure. It's required to be aligned on\r
- // a 4M boundary, so allocate a 4M block (plus what we require), free it up, calculate\r
- // a 4M aligned address within the memory we just freed, and then allocate memory at that\r
- // address for our initial structure.\r
- //\r
- NumberOfPages = FOUR_MEG_PAGES + EFI_SIZE_TO_PAGES(sizeof (EFI_SYSTEM_TABLE_POINTER)); \r
-\r
- Status = CoreAllocatePages (AllocateAnyPages, EfiBootServicesData, NumberOfPages , &Mem); \r
- ASSERT_EFI_ERROR (Status);\r
- if (EFI_ERROR(Status)) {\r
- return;\r
- }\r
- Status = CoreFreePages (Mem, NumberOfPages); \r
- ASSERT_EFI_ERROR (Status);\r
- if (EFI_ERROR(Status)) {\r
- return;\r
- }\r
- //\r
- // Now get a 4M aligned address within the memory range we were given.\r
- // Then allocate memory at that address\r
- //\r
- Mem = (Mem + FOUR_MEG_MASK) & (~FOUR_MEG_MASK);\r
- \r
- Status = CoreAllocatePages (AllocateAddress, EfiBootServicesData, NumberOfPages - FOUR_MEG_PAGES, &Mem); \r
- ASSERT_EFI_ERROR (Status);\r
- if (EFI_ERROR(Status)) {\r
- return;\r
- }\r
- //\r
- // We now have a 4M aligned page allocated, so fill in the data structure.\r
- // Ideally we would update the CRC now as well, but the service may not yet be available.\r
- // See comments in the CoreUpdateDebugTableCrc32() function below for details.\r
- //\r
- mDebugTable = (EFI_SYSTEM_TABLE_POINTER *)(UINTN)Mem;\r
- mDebugTable->Signature = EFI_SYSTEM_TABLE_SIGNATURE;\r
- mDebugTable->EfiSystemTableBase = (EFI_PHYSICAL_ADDRESS) (UINTN) gDxeCoreST;\r
- mDebugTable->Crc32 = 0;\r
- Status = CoreInstallConfigurationTable (&gEfiDebugImageInfoTableGuid, &mDebugInfoTableHeader);\r
- ASSERT_EFI_ERROR (Status);\r
-}\r
-\r
-VOID\r
-CoreUpdateDebugTableCrc32 (\r
- VOID\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Update the CRC32 in the Debug Table.\r
- Since the CRC32 service is made available by the Runtime driver, we have to\r
- wait for the Runtime Driver to be installed before the CRC32 can be computed.\r
- This function is called elsewhere by the core when the runtime architectural\r
- protocol is produced.\r
-\r
-Arguments:\r
- None\r
-\r
-Returns:\r
- NA\r
-\r
---*/\r
-{\r
- ASSERT(mDebugTable != NULL);\r
- mDebugTable->Crc32 = 0;\r
- gDxeCoreBS->CalculateCrc32 ((VOID *)mDebugTable, sizeof (EFI_SYSTEM_TABLE_POINTER), &mDebugTable->Crc32);\r
-}\r
-\r
-VOID\r
-CoreNewDebugImageInfoEntry (\r
- IN UINT32 ImageInfoType,\r
- IN EFI_LOADED_IMAGE_PROTOCOL *LoadedImage,\r
- IN EFI_HANDLE ImageHandle\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Adds a new DebugImageInfo structure to the DebugImageInfo Table. Re-Allocates\r
- the table if it's not large enough to accomidate another entry.\r
-\r
-Arguments:\r
-\r
- ImageInfoType - type of debug image information\r
- LoadedImage - pointer to the loaded image protocol for the image being loaded\r
- ImageHandle - image handle for the image being loaded\r
-\r
-Returns:\r
- NA\r
-\r
---*/\r
-{ \r
- EFI_DEBUG_IMAGE_INFO *Table;\r
- EFI_DEBUG_IMAGE_INFO *NewTable;\r
- UINTN Index;\r
- UINTN MaxTableIndex;\r
- UINTN TableSize;\r
-\r
- //\r
- // Set the flag indicating that we're in the process of updating the table.\r
- //\r
- mDebugInfoTableHeader.UpdateStatus |= EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;\r
-\r
- Table = mDebugInfoTableHeader.EfiDebugImageInfoTable;\r
- MaxTableIndex = mDebugInfoTableHeader.TableSize;\r
-\r
- for (Index = 0; Index < MaxTableIndex; Index++) {\r
- if (Table[Index].NormalImage == NULL) {\r
- //\r
- // We have found a free entry so exit the loop\r
- //\r
- break;\r
- }\r
- }\r
- if (Index == MaxTableIndex) {\r
- //\r
- // Table is full, so re-allocate another page for a larger table...\r
- //\r
- TableSize = MaxTableIndex * EFI_DEBUG_TABLE_ENTRY_SIZE;\r
- NewTable = CoreAllocateZeroBootServicesPool (TableSize + EFI_PAGE_SIZE);\r
- if (NewTable == NULL) {\r
- mDebugInfoTableHeader.UpdateStatus &= ~EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;\r
- return;\r
- }\r
- //\r
- // Copy the old table into the new one\r
- //\r
- CopyMem (NewTable, Table, TableSize);\r
- //\r
- // Free the old table\r
- //\r
- CoreFreePool (Table);\r
- //\r
- // Update the table header\r
- //\r
- Table = NewTable;\r
- mDebugInfoTableHeader.EfiDebugImageInfoTable = NewTable;\r
- mDebugInfoTableHeader.TableSize += EFI_PAGE_SIZE / EFI_DEBUG_TABLE_ENTRY_SIZE;\r
- }\r
- //\r
- // Allocate data for new entry\r
- //\r
- Table[Index].NormalImage = CoreAllocateZeroBootServicesPool (sizeof (EFI_DEBUG_IMAGE_INFO_NORMAL));\r
- if (Table[Index].NormalImage != NULL) {\r
- //\r
- // Update the entry\r
- //\r
- Table[Index].NormalImage->ImageInfoType = (UINT32) ImageInfoType;\r
- Table[Index].NormalImage->LoadedImageProtocolInstance = LoadedImage;\r
- Table[Index].NormalImage->ImageHandle = ImageHandle;\r
- }\r
- mDebugInfoTableHeader.UpdateStatus &= ~EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;\r
-}\r
-\r
-\r
-VOID\r
-CoreRemoveDebugImageInfoEntry (\r
- EFI_HANDLE ImageHandle\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Removes and frees an entry from the DebugImageInfo Table.\r
-\r
-Arguments:\r
-\r
- ImageHandle - image handle for the image being unloaded\r
-\r
-Returns:\r
-\r
- NA\r
-\r
---*/\r
-{ \r
- EFI_DEBUG_IMAGE_INFO *Table;\r
- UINTN Index;\r
-\r
- mDebugInfoTableHeader.UpdateStatus |= EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;\r
-\r
- Table = mDebugInfoTableHeader.EfiDebugImageInfoTable;\r
-\r
- for (Index = 0; Index < mDebugInfoTableHeader.TableSize; Index++) {\r
- if (Table[Index].NormalImage != NULL && Table[Index].NormalImage->ImageHandle == ImageHandle) {\r
- //\r
- // Found a match. Free up the record, then NULL the pointer to indicate the slot\r
- // is free.\r
- //\r
- CoreFreePool (Table[Index].NormalImage);\r
- Table[Index].NormalImage = NULL;\r
- break;\r
- }\r
- }\r
- mDebugInfoTableHeader.UpdateStatus &= ~EFI_DEBUG_IMAGE_INFO_UPDATE_IN_PROGRESS;\r
-}\r
-\r
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