Re: writing EDK compatible application.

[Marvin H?user <Marvin.Haeuser@outlook.com>]

Hey,

The entry point declarations and the calling conventions have not changed since EFI 1.10, though X64 was not a supported platform for 1.10 if I remember correctly.
To be honest, I never saw an x64 EFI 1.10 implementation other than Apple's, though even if it still signals that version, it's actually more UEFI by now.
I don't own a Mac, so if it's the platform you tested your app on, I can't tell you why it didn't work, but I would suggest you to run the app from an EFI Shell.

Regards,
Marvin.

> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of
> Amit kumar
> Sent: Tuesday, July 4, 2017 7:21 PM
> To: edk2-devel@lists.01.org
> Subject: [edk2] writing EDK compatible application.
> 
> 
> HI,
> 
> I have written a code (say helloworld program ) using edk2 framework,
> named the output efi file as BOOTx64.efi and placed it on a removable media
> in EFI/BOOT/ directory so that the application is listed in one time boot menu.
> When selected from boot menu it prints "Hello World".
> Which works as expected when tested on UEFI 2.3 and above platforms.
> But the same code fails to execute on EFI 1.10 platforms. Which i suppose is
> the problem with application entry point.
> Can somebody suggest me a way so that the application entry function can
> be compatible to both the platform. Even when written according to UEFI
> 2.5+ Spec ?
> 
> Thanks
> Amit
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