On 11/22/18 18:26, Ard Biesheuvel wrote:
> The BdsLib library has been moved into Platform/ARM a while ago,
> but the BdsLib.h header was left behind, and so all users in
> Platform/ARM are still relying on it to be available in ArmPkg.
> 
> So let's add a copy to Platform/ARM and wire it up, so we can
> drop it from ArmPkg going forward. Note that the BdsLib
> implementation included ArmLib.h from ArmPkg without using
> anything it provides, so drop that false dependency as well.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <[email protected]>
> ---
>  Platform/ARM/ARM.dec                                   |   3 +
>  Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.inf |   2 +-
>  Platform/ARM/Include/Library/BdsLib.h                  | 212 
> ++++++++++++++++++++
>  Platform/ARM/Library/BdsLib/BdsInternal.h              |   1 -
>  Platform/ARM/Library/BdsLib/BdsLib.inf                 |   2 +-
>  5 files changed, 217 insertions(+), 3 deletions(-)
> 
> diff --git a/Platform/ARM/ARM.dec b/Platform/ARM/ARM.dec
> index f9bf3294a0ca..6a6eeb6559fd 100644
> --- a/Platform/ARM/ARM.dec
> +++ b/Platform/ARM/ARM.dec
> @@ -21,5 +21,8 @@
>  [Includes]
>    Include                        # Root include for the package
>  
> +[LibraryClasses]
> +  BdsLib|Include/Library/BdsLib.h
> +
>  [Guids]
>    gArmBootMonFsFileInfoGuid   = { 0x41e26b9c, 0xada6, 0x45b3, { 0x80, 0x8e, 
> 0x23, 0x57, 0xa3, 0x5b, 0x60, 0xd6 } }
> diff --git a/Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.inf 
> b/Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.inf
> index f9a5aee3596e..d4aef4bfce92 100644
> --- a/Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.inf
> +++ b/Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.inf
> @@ -28,10 +28,10 @@
>    ShellSetFdt.c
>  
>  [Packages]
> -  ArmPkg/ArmPkg.dec
>    EmbeddedPkg/EmbeddedPkg.dec
>    MdeModulePkg/MdeModulePkg.dec
>    MdePkg/MdePkg.dec
> +  Platform/ARM/ARM.dec
>    Platform/ARM/Drivers/FdtPlatformDxe/FdtPlatformDxe.dec
>    ShellPkg/ShellPkg.dec
>  
> diff --git a/Platform/ARM/Include/Library/BdsLib.h 
> b/Platform/ARM/Include/Library/BdsLib.h
> new file mode 100644
> index 000000000000..4528c2e8739b
> --- /dev/null
> +++ b/Platform/ARM/Include/Library/BdsLib.h
> @@ -0,0 +1,212 @@
> +/** @file
> +*
> +*  Copyright (c) 2013-2015, ARM Limited. All rights reserved.
> +*
> +*  This program and the accompanying materials
> +*  are licensed and made available under the terms and conditions of the BSD 
> License
> +*  which accompanies this distribution.  The full text of the license may be 
> found at
> +*  http://opensource.org/licenses/bsd-license.php
> +*
> +*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
> +*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR 
> IMPLIED.
> +*
> +**/
> +
> +#ifndef __BDS_ENTRY_H__
> +#define __BDS_ENTRY_H__
> +
> +#define IS_DEVICE_PATH_NODE(node,type,subtype)    \
> +        (((node)->Type == (type)) && ((node)->SubType == (subtype)))
> +
> +/**
> +  This is defined by the UEFI specs, don't change it
> +**/
> +typedef struct {
> +  UINT16                      LoadOptionIndex;
> +  EFI_LOAD_OPTION             *LoadOption;
> +  UINTN                       LoadOptionSize;
> +
> +  UINT32                      Attributes;
> +  UINT16                      FilePathListLength;
> +  CHAR16                      *Description;
> +  EFI_DEVICE_PATH_PROTOCOL    *FilePathList;
> +
> +  VOID*                       OptionalData;
> +  UINTN                       OptionalDataSize;
> +} BDS_LOAD_OPTION;
> +
> +/**
> +  Connect a Device Path and return the handle of the driver that support 
> this DevicePath
> +
> +  @param  DevicePath            Device Path of the File to connect
> +  @param  Handle                Handle of the driver that support this 
> DevicePath
> +  @param  RemainingDevicePath   Remaining DevicePath nodes that do not match 
> the driver DevicePath
> +
> +  @retval EFI_SUCCESS           A driver that matches the Device Path has 
> been found
> +  @retval EFI_NOT_FOUND         No handles match the search.
> +  @retval EFI_INVALID_PARAMETER DevicePath or Handle is NULL
> +
> +**/
> +EFI_STATUS
> +BdsConnectDevicePath (
> +  IN  EFI_DEVICE_PATH_PROTOCOL* DevicePath,
> +  OUT EFI_HANDLE                *Handle,
> +  OUT EFI_DEVICE_PATH_PROTOCOL  **RemainingDevicePath
> +  );
> +
> +/**
> +  Connect all DXE drivers
> +
> +  @retval EFI_SUCCESS           All drivers have been connected
> +  @retval EFI_NOT_FOUND         No handles match the search.
> +  @retval EFI_OUT_OF_RESOURCES  There is not resource pool memory to store 
> the matching results.
> +
> +**/
> +EFI_STATUS
> +BdsConnectAllDrivers (
> +  VOID
> +  );
> +
> +/**
> +  Return the value of a global variable defined by its VariableName.
> +  The variable must be defined with the VendorGuid gEfiGlobalVariableGuid.
> +
> +  @param  VariableName          A Null-terminated string that is the name of 
> the vendor's
> +                                variable.
> +  @param  DefaultValue          Value returned by the function if the 
> variable does not exist
> +  @param  DataSize              On input, the size in bytes of the return 
> Data buffer.
> +                                On output the size of data returned in Data.
> +  @param  Value                 Value read from the UEFI Variable or copy of 
> the default value
> +                                if the UEFI Variable does not exist
> +
> +  @retval EFI_SUCCESS           All drivers have been connected
> +  @retval EFI_NOT_FOUND         No handles match the search.
> +  @retval EFI_OUT_OF_RESOURCES  There is not resource pool memory to store 
> the matching results.
> +
> +**/
> +EFI_STATUS
> +GetGlobalEnvironmentVariable (
> +  IN     CONST CHAR16*   VariableName,
> +  IN     VOID*           DefaultValue,
> +  IN OUT UINTN*          Size,
> +  OUT    VOID**          Value
> +  );
> +
> +/**
> +  Return the value of the variable defined by its VariableName and VendorGuid
> +
> +  @param  VariableName          A Null-terminated string that is the name of 
> the vendor's
> +                                variable.
> +  @param  VendorGuid            A unique identifier for the vendor.
> +  @param  DefaultValue          Value returned by the function if the 
> variable does not exist
> +  @param  DataSize              On input, the size in bytes of the return 
> Data buffer.
> +                                On output the size of data returned in Data.
> +  @param  Value                 Value read from the UEFI Variable or copy of 
> the default value
> +                                if the UEFI Variable does not exist
> +
> +  @retval EFI_SUCCESS           All drivers have been connected
> +  @retval EFI_NOT_FOUND         No handles match the search.
> +  @retval EFI_OUT_OF_RESOURCES  There is not resource pool memory to store 
> the matching results.
> +
> +**/
> +EFI_STATUS
> +GetEnvironmentVariable (
> +  IN     CONST CHAR16*   VariableName,
> +  IN     EFI_GUID*       VendorGuid,
> +  IN     VOID*           DefaultValue,
> +  IN OUT UINTN*          Size,
> +  OUT    VOID**          Value
> +  );
> +
> +EFI_STATUS
> +BootOptionFromLoadOptionIndex (
> +  IN  UINT16            LoadOptionIndex,
> +  OUT BDS_LOAD_OPTION** BdsLoadOption
> +  );
> +
> +EFI_STATUS
> +BootOptionFromLoadOptionVariable (
> +  IN  CHAR16*           BootVariableName,
> +  OUT BDS_LOAD_OPTION** BdsLoadOption
> +  );
> +
> +EFI_STATUS
> +BootOptionToLoadOptionVariable (
> +  IN BDS_LOAD_OPTION*   BdsLoadOption
> +  );
> +
> +UINT16
> +BootOptionAllocateBootIndex (
> +  VOID
> +  );
> +
> +/**
> +  Start an EFI Application from a Device Path
> +
> +  @param  ParentImageHandle     Handle of the calling image
> +  @param  DevicePath            Location of the EFI Application
> +
> +  @retval EFI_SUCCESS           All drivers have been connected
> +  @retval EFI_NOT_FOUND         The Linux kernel Device Path has not been 
> found
> +  @retval EFI_OUT_OF_RESOURCES  There is not enough resource memory to store 
> the matching results.
> +
> +**/
> +EFI_STATUS
> +BdsStartEfiApplication (
> +  IN EFI_HANDLE                  ParentImageHandle,
> +  IN EFI_DEVICE_PATH_PROTOCOL    *DevicePath,
> +  IN UINTN                       LoadOptionsSize,
> +  IN VOID*                       LoadOptions
> +  );
> +
> +EFI_STATUS
> +BdsLoadImage (
> +  IN     EFI_DEVICE_PATH       *DevicePath,
> +  IN     EFI_ALLOCATE_TYPE     Type,
> +  IN OUT EFI_PHYSICAL_ADDRESS* Image,
> +  OUT    UINTN                 *FileSize
> +  );
> +
> +/**
> + * Call BS.ExitBootServices with the appropriate Memory Map information
> + */
> +EFI_STATUS
> +ShutdownUefiBootServices (
> +  VOID
> +  );
> +
> +/**
> +  Locate an EFI application in a the Firmware Volumes by its name
> +
> +  @param  EfiAppGuid            Guid of the EFI Application into the 
> Firmware Volume
> +  @param  DevicePath            EFI Device Path of the EFI application
> +
> +  @return EFI_SUCCESS           The function completed successfully.
> +  @return EFI_NOT_FOUND         The protocol could not be located.
> +  @return EFI_OUT_OF_RESOURCES  There are not enough resources to find the 
> protocol.
> +
> +**/
> +EFI_STATUS
> +LocateEfiApplicationInFvByName (
> +  IN  CONST CHAR16*             EfiAppName,
> +  OUT EFI_DEVICE_PATH           **DevicePath
> +  );
> +
> +/**
> +  Locate an EFI application in a the Firmware Volumes by its GUID
> +
> +  @param  EfiAppGuid            Guid of the EFI Application into the 
> Firmware Volume
> +  @param  DevicePath            EFI Device Path of the EFI application
> +
> +  @return EFI_SUCCESS           The function completed successfully.
> +  @return EFI_NOT_FOUND         The protocol could not be located.
> +  @return EFI_OUT_OF_RESOURCES  There are not enough resources to find the 
> protocol.
> +
> +**/
> +EFI_STATUS
> +LocateEfiApplicationInFvByGuid (
> +  IN  CONST EFI_GUID            *EfiAppGuid,
> +  OUT EFI_DEVICE_PATH           **DevicePath
> +  );
> +
> +#endif
> diff --git a/Platform/ARM/Library/BdsLib/BdsInternal.h 
> b/Platform/ARM/Library/BdsLib/BdsInternal.h
> index f70aae603d69..bb4566e3a6c4 100644
> --- a/Platform/ARM/Library/BdsLib/BdsInternal.h
> +++ b/Platform/ARM/Library/BdsLib/BdsInternal.h
> @@ -16,7 +16,6 @@
>  #define __BDS_INTERNAL_H__
>  
>  #include <PiDxe.h>
> -#include <Library/ArmLib.h>
>  #include <Library/BaseLib.h>
>  #include <Library/BaseMemoryLib.h>
>  #include <Library/DxeServicesTableLib.h>
> diff --git a/Platform/ARM/Library/BdsLib/BdsLib.inf 
> b/Platform/ARM/Library/BdsLib/BdsLib.inf
> index 96c1d6e7e200..637ef5a08128 100644
> --- a/Platform/ARM/Library/BdsLib/BdsLib.inf
> +++ b/Platform/ARM/Library/BdsLib/BdsLib.inf
> @@ -27,10 +27,10 @@
>    BdsLoadOption.c
>  
>  [Packages]
> -  ArmPkg/ArmPkg.dec
>    EmbeddedPkg/EmbeddedPkg.dec
>    MdeModulePkg/MdeModulePkg.dec
>    MdePkg/MdePkg.dec
> +  Platform/ARM/ARM.dec
>  
>  [LibraryClasses]
>    ArmLib
> 

Seems OK to me.

Acked-by: Laszlo Ersek <[email protected]>
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