> On Jan 30, 2019, at 8:05 AM, Ryszard Knop <ryszard.k...@linux.intel.com>
> wrote:
>
> Hmm, is there a list/something I can generate to see which globals
> build tools emit? There are some more variables I'd happily get rid
> of, eg if I could drop gSystemTable and others.
>
Ryszard,
You need to use libs by including the include file, and listing the lib in the
INF. The library constructor initializes the globals.
https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/DxeServicesTableLib.h
<https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/DxeServicesTableLib.h>
https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/UefiBootServicesTableLib.h
<https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/UefiBootServicesTableLib.h>
https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/UefiRuntimeServicesTableLib.h
For edk2 the library constructors get called prior calling your drivers entry
point.
Thanks,
Andrew Fish
> Reviewed-by: Ryszard Knop <ryszard.k...@linux.intel.com>
>
> On Wed, 2018-11-14 at 18:33 -0800, ard.biesheuvela wrote:
>> Remove duplicate definition of gImageHandle, which is emitted by
>> the build tools as well.
>>
>> Contributed-under: TianoCore Contribution Agreement 1.1
>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
>> ---
>> IntelUndiPkg/XGigUndiDxe/Init.c | 2 --
>> 1 file changed, 2 deletions(-)
>>
>> diff --git a/IntelUndiPkg/XGigUndiDxe/Init.c
>> b/IntelUndiPkg/XGigUndiDxe/Init.c
>> index 84e06ea071c5..03e3942a1944 100644
>> --- a/IntelUndiPkg/XGigUndiDxe/Init.c
>> +++ b/IntelUndiPkg/XGigUndiDxe/Init.c
>> @@ -47,7 +47,6 @@ UINT16 mActiveChildren = 0;
>> EFI_EVENT gEventNotifyExitBs;
>> EFI_EVENT gEventNotifyVirtual;
>>
>> -EFI_HANDLE gImageHandle;
>> EFI_SYSTEM_TABLE *gSystemTable;
>>
>> EFI_GUID gEfiNiiPointerGuid = EFI_NII_POINTER_PROTOCOL_GUID;
>> @@ -502,7 +501,6 @@ InitializeXGigUndiDriver (
>> {
>> EFI_STATUS Status;
>>
>> - gImageHandle = ImageHandle;
>> gSystemTable = SystemTable;
>>
>> Status = EfiLibInstallDriverBinding (ImageHandle, SystemTable,
>> &gUndiDriverBinding, ImageHandle);
>
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