> On Sep 17, 2019, at 1:28 PM, Ni, Ray <ray...@intel.com> wrote:
>
> Andrew,
> I agree. Your solution is like "use strict;" in Perl language.
> (https://perldoc.perl.org/strict.html)
> Maybe "STRICT_UEFI_TYPES" without "ER". I don't see any strict in today's
> code. 😊
>
Ray,
I'm flexible on the name, I was just trying to give a good example of what I
was suggesting.
Thanks,
Andrew Fish
> Thanks,
> Ray
>
>> -----Original Message-----
>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Andrew Fish
>> via Groups.Io
>> Sent: Tuesday, September 17, 2019 1:22 PM
>> To: Ni, Ray <ray...@intel.com>
>> Cc: devel@edk2.groups.io; ler...@redhat.com; Achin Gupta
>> <achin.gu...@arm.com>; Anthony Perard
>> <anthony.per...@citrix.com>; Ard Biesheuvel <ard.biesheu...@linaro.org>;
>> You, Benjamin <benjamin....@intel.com>;
>> Zhang, Chao B <chao.b.zh...@intel.com>; Bi, Dandan <dandan...@intel.com>;
>> David Woodhouse
>> <dw...@infradead.org>; Dong, Eric <eric.d...@intel.com>; Dong, Guo
>> <guo.d...@intel.com>; Wu, Hao A
>> <hao.a...@intel.com>; Carsey, Jaben <jaben.car...@intel.com>; Wang, Jian J
>> <jian.j.w...@intel.com>; Wu, Jiaxin
>> <jiaxin...@intel.com>; Yao, Jiewen <jiewen....@intel.com>; Justen, Jordan L
>> <jordan.l.jus...@intel.com>; Julien Grall
>> <julien.gr...@arm.com>; Leif Lindholm <leif.lindh...@linaro.org>; Gao,
>> Liming <liming....@intel.com>; Ma, Maurice
>> <maurice...@intel.com>; Kinney, Michael D <michael.d.kin...@intel.com>; Fu,
>> Siyuan <siyuan...@intel.com>; Supreeth
>> Venkatesh <supreeth.venkat...@arm.com>; Gao, Zhichao <zhichao....@intel.com>
>> Subject: Re: [edk2-devel] [PATCH 01/35] DO NOT APPLY: edk2: turn standard
>> handle types into pointers to non-VOID
>>
>>
>>
>>> On Sep 17, 2019, at 1:06 PM, Ni, Ray <ray...@intel.com> wrote:
>>>
>>> Laszlo,
>>> Thank you very much for this work.
>>> They are quite helpful to detect potential issues.
>>>
>>> But without this specific patch being checked in, future break will still
>>> happen.
>>> I don't want it to be checked in ASAP because I know that there are quite a
>>> lot of close source code that may get build
>> break due to this change.
>>> Besides that, what prevent you make the decision to check in the changes?
>>>
>>
>> Ray,
>>
>> I was thinking the same thing. Could we make this an optional feature via a
>> #define? We could always default to the Spec
>> Behavior, and new projects could opt into the stricter version.
>>
>> #ifndef STRICTER_UEFI_TYPES
>> typedef VOID *EFI_PEI_FV_HANDLE;
>> #else
>> struct EFI_PEI_FV_OBJECT;
>> typedef struct EFI_PEI_FV_OBJECT *EFI_PEI_FV_HANDLE;
>> #endif
>>
>> Thanks,
>>
>> Andrew Fish
>>
>>> Thanks,
>>> Ray
>>>
>>>
>>>> -----Original Message-----
>>>> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Laszlo Ersek
>>>> Sent: Tuesday, September 17, 2019 12:49 PM
>>>> To: edk2-devel-groups-io <devel@edk2.groups.io>
>>>> Cc: Achin Gupta <achin.gu...@arm.com>; Andrew Fish <af...@apple.com>;
>>>> Anthony Perard
>> <anthony.per...@citrix.com>;
>>>> Ard Biesheuvel <ard.biesheu...@linaro.org>; You, Benjamin
>>>> <benjamin....@intel.com>; Zhang, Chao B
>>>> <chao.b.zh...@intel.com>; Bi, Dandan <dandan...@intel.com>; David
>>>> Woodhouse <dw...@infradead.org>; Dong,
>> Eric
>>>> <eric.d...@intel.com>; Dong, Guo <guo.d...@intel.com>; Wu, Hao A
>>>> <hao.a...@intel.com>; Carsey, Jaben
>>>> <jaben.car...@intel.com>; Wang, Jian J <jian.j.w...@intel.com>; Wu, Jiaxin
>>>> <jiaxin...@intel.com>; Yao, Jiewen
>>>> <jiewen....@intel.com>; Justen, Jordan L <jordan.l.jus...@intel.com>;
>>>> Julien Grall <julien.gr...@arm.com>; Leif
>> Lindholm
>>>> <leif.lindh...@linaro.org>; Gao, Liming <liming....@intel.com>; Ma,
>>>> Maurice <maurice...@intel.com>; Kinney,
>> Michael
>>>> D <michael.d.kin...@intel.com>; Ni, Ray <ray...@intel.com>; Fu, Siyuan
>>>> <siyuan...@intel.com>; Supreeth Venkatesh
>>>> <supreeth.venkat...@arm.com>; Gao, Zhichao <zhichao....@intel.com>
>>>> Subject: [edk2-devel] [PATCH 01/35] DO NOT APPLY: edk2: turn standard
>>>> handle types into pointers to non-VOID
>>>>
>>>> Unfortunately, the UEFI / PI / Shell specs define a number of handle types
>>>> as pointers to VOID. This is a design mistake; those types should have
>>>> been pointers to incomplete union or structure types. Any
>>>> pointer-to-object type converts implicitly to, and from, pointer-to-void,
>>>> which prevents compilers from catching at least the following two types of
>>>> mistakes:
>>>>
>>>> - mixing up one handle type with another (for example, EFI_HANDLE with
>>>> EFI_EVENT),
>>>>
>>>> - getting the depth of indirection wrong (for example, mixing up
>>>> (EFI_HANDLE*) with EFI_HANDLE).
>>>>
>>>> In order to root out such mistakes in the edk2 codebase, introduce
>>>> incomplete structure types with unique tags, such as:
>>>>
>>>> struct EFI_FOOBAR_OBJECT;
>>>> typedef struct EFI_FOOBAR_OBJECT *EFI_FOOBAR_HANDLE;
>>>>
>>>> replacing the spec mandated
>>>>
>>>> typedef VOID *EFI_FOOBAR_HANDLE;
>>>>
>>>> (For some types, such as:
>>>>
>>>> - EFI_ACPI_HANDLE,
>>>> - EFI_EVENT,
>>>> - EFI_FONT_HANDLE,
>>>> - EFI_HANDLE,
>>>> - EFI_HII_HANDLE,
>>>> - EFI_S3_BOOT_SCRIPT_POSITION,
>>>> - SHELL_FILE_HANDLE,
>>>>
>>>> we connect the actual complete type (the internal, implementation-specific
>>>> type) to the typedef. Some of these also demonstrate how the code could
>>>> have looked in practice if the specs had used proper opaque (=incomplete)
>>>> types.)
>>>>
>>>> Then, unleash "build" on the package DSC files. This causes the compiler
>>>> to warn about incompatible pointer assignments, and to stop the build.
>>>>
>>>> The rest of the series addresses the resultant warnings. Each patch
>>>> belongs in one of two categories:
>>>>
>>>> - semantic cleanups (no functional / behavioral changes),
>>>> - actual bugfixes.
>>>>
>>>> As the subject line of this patch states, this specific patch is *not*
>>>> meant to be applied. It is just a "what if" patch that temporarily
>>>> isolates the standard types from each other, the way the specs should
>>>> have, so that the compiler have more information to work with.
>>>>
>>>> Cc: Achin Gupta <achin.gu...@arm.com>
>>>> Cc: Andrew Fish <af...@apple.com>
>>>> Cc: Anthony Perard <anthony.per...@citrix.com>
>>>> Cc: Ard Biesheuvel <ard.biesheu...@linaro.org>
>>>> Cc: Benjamin You <benjamin....@intel.com>
>>>> Cc: Chao Zhang <chao.b.zh...@intel.com>
>>>> Cc: Dandan Bi <dandan...@intel.com>
>>>> Cc: David Woodhouse <dw...@infradead.org>
>>>> Cc: Eric Dong <eric.d...@intel.com>
>>>> Cc: Guo Dong <guo.d...@intel.com>
>>>> Cc: Hao A Wu <hao.a...@intel.com>
>>>> Cc: Jaben Carsey <jaben.car...@intel.com>
>>>> Cc: Jian J Wang <jian.j.w...@intel.com>
>>>> Cc: Jian Wang <jian.j.w...@intel.com>
>>>> Cc: Jiaxin Wu <jiaxin...@intel.com>
>>>> Cc: Jiewen Yao <jiewen....@intel.com>
>>>> Cc: Jordan Justen <jordan.l.jus...@intel.com>
>>>> Cc: Julien Grall <julien.gr...@arm.com>
>>>> Cc: Leif Lindholm <leif.lindh...@linaro.org>
>>>> Cc: Liming Gao <liming....@intel.com>
>>>> Cc: Maurice Ma <maurice...@intel.com>
>>>> Cc: Michael D Kinney <michael.d.kin...@intel.com>
>>>> Cc: Ray Ni <ray...@intel.com>
>>>> Cc: Siyuan Fu <siyuan...@intel.com>
>>>> Cc: Supreeth Venkatesh <supreeth.venkat...@arm.com>
>>>> Cc: Zhichao Gao <zhichao....@intel.com>
>>>> Signed-off-by: Laszlo Ersek <ler...@redhat.com>
>>>> ---
>>>> MdePkg/Include/Pi/PiPeiCis.h | 6 ++++--
>>>> MdePkg/Include/Protocol/AcpiSystemDescriptionTable.h | 3 ++-
>>>> MdePkg/Include/Protocol/Bis.h | 3 ++-
>>>> MdePkg/Include/Protocol/Eap.h | 3 ++-
>>>> MdePkg/Include/Protocol/HiiFont.h | 3 +--
>>>> MdePkg/Include/Protocol/MmMp.h | 3 ++-
>>>> MdePkg/Include/Protocol/S3SaveState.h | 2 +-
>>>> MdePkg/Include/Protocol/Shell.h | 3 ++-
>>>> MdePkg/Include/Protocol/UserManager.h | 9 ++++++---
>>>> MdePkg/Include/Uefi/UefiBaseType.h | 6 ++++--
>>>> MdePkg/Include/Uefi/UefiInternalFormRepresentation.h | 3 ++-
>>>> MdeModulePkg/Core/Dxe/Event/Event.h | 2 +-
>>>> MdeModulePkg/Core/Dxe/Hand/Handle.h | 2 +-
>>>> MdeModulePkg/Core/PiSmmCore/PiSmmCore.h | 2 +-
>>>> MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h | 2 +-
>>>> MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h | 2 +-
>>>> StandaloneMmPkg/Core/StandaloneMmCore.h | 2 +-
>>>> 17 files changed, 34 insertions(+), 22 deletions(-)
>>>>
>>>> diff --git a/MdePkg/Include/Pi/PiPeiCis.h b/MdePkg/Include/Pi/PiPeiCis.h
>>>> index d9d4ed7d413a..3e9e82b62ae9 100644
>>>> --- a/MdePkg/Include/Pi/PiPeiCis.h
>>>> +++ b/MdePkg/Include/Pi/PiPeiCis.h
>>>> @@ -18,12 +18,14 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>>>> ///
>>>> /// The handles of EFI FV.
>>>> ///
>>>> -typedef VOID *EFI_PEI_FV_HANDLE;
>>>> +struct EFI_PEI_FV_OBJECT;
>>>> +typedef struct EFI_PEI_FV_OBJECT *EFI_PEI_FV_HANDLE;
>>>>
>>>> ///
>>>> /// The handles of EFI FFS.
>>>> ///
>>>> -typedef VOID *EFI_PEI_FILE_HANDLE;
>>>> +struct EFI_PEI_FILE_OBJECT;
>>>> +typedef struct EFI_PEI_FILE_OBJECT *EFI_PEI_FILE_HANDLE;
>>>>
>>>> ///
>>>> /// Declare the forward reference data structure for EFI_PEI_SERVICE.
>>>> diff --git a/MdePkg/Include/Protocol/AcpiSystemDescriptionTable.h
>>>> b/MdePkg/Include/Protocol/AcpiSystemDescriptionTable.h
>>>> index a8e0b24c6c8d..8a1863f3e03d 100644
>>>> --- a/MdePkg/Include/Protocol/AcpiSystemDescriptionTable.h
>>>> +++ b/MdePkg/Include/Protocol/AcpiSystemDescriptionTable.h
>>>> @@ -16,7 +16,8 @@
>>>> { 0xeb97088e, 0xcfdf, 0x49c6, { 0xbe, 0x4b, 0xd9, 0x6, 0xa5, 0xb2, 0xe,
>>>> 0x86 }}
>>>>
>>>> typedef UINT32 EFI_ACPI_TABLE_VERSION;
>>>> -typedef VOID *EFI_ACPI_HANDLE;
>>>> +struct EFI_ACPI_OBJECT;
>>>> +typedef struct EFI_ACPI_OBJECT *EFI_ACPI_HANDLE;
>>>>
>>>> #define EFI_ACPI_TABLE_VERSION_NONE (1 << 0)
>>>> #define EFI_ACPI_TABLE_VERSION_1_0B (1 << 1)
>>>> diff --git a/MdePkg/Include/Protocol/Bis.h b/MdePkg/Include/Protocol/Bis.h
>>>> index 2be6718f4bc2..8eca94512d03 100644
>>>> --- a/MdePkg/Include/Protocol/Bis.h
>>>> +++ b/MdePkg/Include/Protocol/Bis.h
>>>> @@ -37,7 +37,8 @@ typedef struct _EFI_BIS_PROTOCOL EFI_BIS_PROTOCOL;
>>>> //
>>>> // Basic types
>>>> //
>>>> -typedef VOID *BIS_APPLICATION_HANDLE;
>>>> +struct BIS_APPLICATION_OBJECT;
>>>> +typedef struct BIS_APPLICATION_OBJECT *BIS_APPLICATION_HANDLE;
>>>> typedef UINT16 BIS_ALG_ID;
>>>> typedef UINT32 BIS_CERT_ID;
>>>>
>>>> diff --git a/MdePkg/Include/Protocol/Eap.h b/MdePkg/Include/Protocol/Eap.h
>>>> index 203d0f40b0dd..06584ef409d0 100644
>>>> --- a/MdePkg/Include/Protocol/Eap.h
>>>> +++ b/MdePkg/Include/Protocol/Eap.h
>>>> @@ -28,7 +28,8 @@ typedef struct _EFI_EAP_PROTOCOL EFI_EAP_PROTOCOL;
>>>> /// Type for the identification number assigned to the Port by the
>>>> /// System in which the Port resides.
>>>> ///
>>>> -typedef VOID * EFI_PORT_HANDLE;
>>>> +struct EFI_PORT_OBJECT;
>>>> +typedef struct EFI_PORT_OBJECT *EFI_PORT_HANDLE;
>>>>
>>>> ///
>>>> /// EAP Authentication Method Type (RFC 3748)
>>>> diff --git a/MdePkg/Include/Protocol/HiiFont.h
>>>> b/MdePkg/Include/Protocol/HiiFont.h
>>>> index 1f2e321ea4e2..450cad9ada70 100644
>>>> --- a/MdePkg/Include/Protocol/HiiFont.h
>>>> +++ b/MdePkg/Include/Protocol/HiiFont.h
>>>> @@ -19,8 +19,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>>>> { 0xe9ca4775, 0x8657, 0x47fc, { 0x97, 0xe7, 0x7e, 0xd6, 0x5a, 0x8, 0x43,
>>>> 0x24 } }
>>>>
>>>> typedef struct _EFI_HII_FONT_PROTOCOL EFI_HII_FONT_PROTOCOL;
>>>> -
>>>> -typedef VOID *EFI_FONT_HANDLE;
>>>> +typedef LIST_ENTRY *EFI_FONT_HANDLE;
>>>>
>>>> ///
>>>> /// EFI_HII_OUT_FLAGS.
>>>> diff --git a/MdePkg/Include/Protocol/MmMp.h
>>>> b/MdePkg/Include/Protocol/MmMp.h
>>>> index beace1386cbe..cd4e0db47e08 100644
>>>> --- a/MdePkg/Include/Protocol/MmMp.h
>>>> +++ b/MdePkg/Include/Protocol/MmMp.h
>>>> @@ -36,7 +36,8 @@
>>>> //
>>>> // Completion token
>>>> //
>>>> -typedef VOID* MM_COMPLETION;
>>>> +struct MM_COMPLETION_OBJECT;
>>>> +typedef struct MM_COMPLETION_OBJECT* MM_COMPLETION;
>>>>
>>>> typedef struct {
>>>> MM_COMPLETION Completion;
>>>> diff --git a/MdePkg/Include/Protocol/S3SaveState.h
>>>> b/MdePkg/Include/Protocol/S3SaveState.h
>>>> index c1b8f8b9e08d..235c36be6737 100644
>>>> --- a/MdePkg/Include/Protocol/S3SaveState.h
>>>> +++ b/MdePkg/Include/Protocol/S3SaveState.h
>>>> @@ -21,7 +21,7 @@
>>>> { 0xe857caf6, 0xc046, 0x45dc, { 0xbe, 0x3f, 0xee, 0x7, 0x65, 0xfb,
>>>> 0xa8, 0x87 }}
>>>>
>>>>
>>>> -typedef VOID *EFI_S3_BOOT_SCRIPT_POSITION;
>>>> +typedef UINT8 *EFI_S3_BOOT_SCRIPT_POSITION;
>>>>
>>>> typedef struct _EFI_S3_SAVE_STATE_PROTOCOL EFI_S3_SAVE_STATE_PROTOCOL;
>>>>
>>>> diff --git a/MdePkg/Include/Protocol/Shell.h
>>>> b/MdePkg/Include/Protocol/Shell.h
>>>> index cfb7878228c5..bf791792b4f2 100644
>>>> --- a/MdePkg/Include/Protocol/Shell.h
>>>> +++ b/MdePkg/Include/Protocol/Shell.h
>>>> @@ -11,12 +11,13 @@
>>>> #define __EFI_SHELL_PROTOCOL_H__
>>>>
>>>> #include <Guid/FileInfo.h>
>>>> +#include <Protocol/SimpleFileSystem.h>
>>>>
>>>> #define EFI_SHELL_PROTOCOL_GUID \
>>>> { \
>>>> 0x6302d008, 0x7f9b, 0x4f30, { 0x87, 0xac, 0x60, 0xc9, 0xfe, 0xf5, 0xda,
>>>> 0x4e } \
>>>> }
>>>> -typedef VOID *SHELL_FILE_HANDLE;
>>>> +typedef EFI_FILE_PROTOCOL *SHELL_FILE_HANDLE;
>>>>
>>>> typedef enum {
>>>> ///
>>>> diff --git a/MdePkg/Include/Protocol/UserManager.h
>>>> b/MdePkg/Include/Protocol/UserManager.h
>>>> index 26ac4955f1ec..9abfcffbeebf 100644
>>>> --- a/MdePkg/Include/Protocol/UserManager.h
>>>> +++ b/MdePkg/Include/Protocol/UserManager.h
>>>> @@ -24,8 +24,10 @@
>>>> 0xbaf1e6de, 0x209e, 0x4adb, { 0x8d, 0x96, 0xfd, 0x8b, 0x71, 0xf3, 0xf6,
>>>> 0x83 } \
>>>> }
>>>>
>>>> -typedef VOID *EFI_USER_PROFILE_HANDLE;
>>>> -typedef VOID *EFI_USER_INFO_HANDLE;
>>>> +struct EFI_USER_PROFILE_OBJECT;
>>>> +typedef struct EFI_USER_PROFILE_OBJECT *EFI_USER_PROFILE_HANDLE;
>>>> +struct EFI_USER_INFO_OBJECT;
>>>> +typedef struct EFI_USER_INFO_OBJECT *EFI_USER_INFO_HANDLE;
>>>>
>>>> ///
>>>> /// The attributes of the user profile information.
>>>> @@ -157,7 +159,8 @@ typedef CHAR16 *EFI_USER_INFO_CREDENTIAL_PROVIDER_NAME;
>>>> /// Biometric Exchange Formats Framework) specification.
>>>> ///
>>>> #define EFI_USER_INFO_CBEFF_RECORD 0x0B
>>>> -typedef VOID *EFI_USER_INFO_CBEFF;
>>>> +struct EFI_USER_INFO_CBEFF_OBJECT;
>>>> +typedef struct EFI_USER_INFO_CBEFF_OBJECT *EFI_USER_INFO_CBEFF;
>>>> ///
>>>> /// Indicates how close of a match the fingerprint must be in order to be
>>>> considered a match.
>>>> ///
>>>> diff --git a/MdePkg/Include/Uefi/UefiBaseType.h
>>>> b/MdePkg/Include/Uefi/UefiBaseType.h
>>>> index a62f13dd064f..be5831991b52 100644
>>>> --- a/MdePkg/Include/Uefi/UefiBaseType.h
>>>> +++ b/MdePkg/Include/Uefi/UefiBaseType.h
>>>> @@ -28,11 +28,13 @@ typedef RETURN_STATUS EFI_STATUS;
>>>> ///
>>>> /// A collection of related interfaces.
>>>> ///
>>>> -typedef VOID *EFI_HANDLE;
>>>> +struct EFI_OBJECT;
>>>> +typedef struct EFI_OBJECT *EFI_HANDLE;
>>>> ///
>>>> /// Handle to an event structure.
>>>> ///
>>>> -typedef VOID *EFI_EVENT;
>>>> +struct EFI_EVENT_OBJECT;
>>>> +typedef struct EFI_EVENT_OBJECT *EFI_EVENT;
>>>> ///
>>>> /// Task priority level.
>>>> ///
>>>> diff --git a/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
>>>> b/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
>>>> index 4a1346a599d0..93bf9e9e0f13 100644
>>>> --- a/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
>>>> +++ b/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
>>>> @@ -20,7 +20,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>>>> ///
>>>> /// The following types are currently defined:
>>>> ///
>>>> -typedef VOID* EFI_HII_HANDLE;
>>>> +struct EFI_HII_OBJECT;
>>>> +typedef struct EFI_HII_OBJECT* EFI_HII_HANDLE;
>>>> typedef CHAR16* EFI_STRING;
>>>> typedef UINT16 EFI_IMAGE_ID;
>>>> typedef UINT16 EFI_QUESTION_ID;
>>>> diff --git a/MdeModulePkg/Core/Dxe/Event/Event.h
>>>> b/MdeModulePkg/Core/Dxe/Event/Event.h
>>>> index 8141c5003eec..42590cb1dd09 100644
>>>> --- a/MdeModulePkg/Core/Dxe/Event/Event.h
>>>> +++ b/MdeModulePkg/Core/Dxe/Event/Event.h
>>>> @@ -37,7 +37,7 @@ typedef struct {
>>>> } TIMER_EVENT_INFO;
>>>>
>>>> #define EVENT_SIGNATURE SIGNATURE_32('e','v','n','t')
>>>> -typedef struct {
>>>> +typedef struct EFI_EVENT_OBJECT {
>>>> UINTN Signature;
>>>> UINT32 Type;
>>>> UINT32 SignalCount;
>>>> diff --git a/MdeModulePkg/Core/Dxe/Hand/Handle.h
>>>> b/MdeModulePkg/Core/Dxe/Hand/Handle.h
>>>> index 83eb2b9f3afe..1f1ab3274e8a 100644
>>>> --- a/MdeModulePkg/Core/Dxe/Hand/Handle.h
>>>> +++ b/MdeModulePkg/Core/Dxe/Hand/Handle.h
>>>> @@ -15,7 +15,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
>>>> ///
>>>> /// IHANDLE - contains a list of protocol handles
>>>> ///
>>>> -typedef struct {
>>>> +typedef struct EFI_OBJECT {
>>>> UINTN Signature;
>>>> /// All handles list of IHANDLE
>>>> LIST_ENTRY AllHandles;
>>>> diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
>>>> b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
>>>> index 0908e7f4e9e7..c55da58d465e 100644
>>>> --- a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
>>>> +++ b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
>>>> @@ -145,7 +145,7 @@ typedef struct {
>>>> ///
>>>> /// IHANDLE - contains a list of protocol handles
>>>> ///
>>>> -typedef struct {
>>>> +typedef struct EFI_OBJECT {
>>>> UINTN Signature;
>>>> /// All handles list of IHANDLE
>>>> LIST_ENTRY AllHandles;
>>>> diff --git a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
>>>> b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
>>>> index 50d4c96edb63..bfebbb1f8182 100644
>>>> --- a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
>>>> +++ b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
>>>> @@ -88,7 +88,7 @@ struct _EFI_AML_NODE_LIST {
>>>> // This buffer should not be freed.
>>>> // Size is the total size of this ACPI node buffer.
>>>> //
>>>> -typedef struct {
>>>> +typedef struct EFI_ACPI_OBJECT {
>>>> UINT32 Signature;
>>>> UINT8 *Buffer;
>>>> UINTN Size;
>>>> diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
>>>> b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
>>>> index 4a3feab94df5..48972d0fcad6 100644
>>>> --- a/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
>>>> +++ b/MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabase.h
>>>> @@ -274,7 +274,7 @@ typedef struct _HII_DATABASE_PACKAGE_LIST_INSTANCE {
>>>>
>>>> #define HII_HANDLE_SIGNATURE SIGNATURE_32 ('h','i','h','l')
>>>>
>>>> -typedef struct {
>>>> +typedef struct EFI_HII_OBJECT {
>>>> UINTN Signature;
>>>> LIST_ENTRY Handle;
>>>> UINTN Key;
>>>> diff --git a/StandaloneMmPkg/Core/StandaloneMmCore.h
>>>> b/StandaloneMmPkg/Core/StandaloneMmCore.h
>>>> index 4d0eed273f50..dcf91bc5e916 100644
>>>> --- a/StandaloneMmPkg/Core/StandaloneMmCore.h
>>>> +++ b/StandaloneMmPkg/Core/StandaloneMmCore.h
>>>> @@ -105,7 +105,7 @@ typedef struct {
>>>> ///
>>>> /// IHANDLE - contains a list of protocol handles
>>>> ///
>>>> -typedef struct {
>>>> +typedef struct EFI_OBJECT {
>>>> UINTN Signature;
>>>> /// All handles list of IHANDLE
>>>> LIST_ENTRY AllHandles;
>>>> --
>>>> 2.19.1.3.g30247aa5d201
>>>>
>>>>
>>>>
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>>>
>>
>>
>>
>
>
>
>
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