I think you are on to something, I am using UEFI not the EDK shell. That would
explain why ShellExecute is crashing.
I'm seeing a compile error though:
Error LNK2001: unresolved external symbol _EfiShellExecute
I tried including various header files and libraries but I'm not sure if the
below references are correct.
There are no sample apps that use EfiShellExecute and google came up with
nothing so I'm at a bit of a loss on how to reference EfiShellExecute into my
app correctly.
Project H File
#include <Protocol/EfiShell.h>
-----------------
Project INF File
[LibraryClasses]
UefiShellLib
-----------------
MdeModulePkg.dsc
[LibraryClasses]
UefiShellLib|ShellPkg\Library\UefiShellLib/UefiShellLib.inf
From: [email protected]
To: [email protected]
Date: Fri, 19 Sep 2014 16:30:18 +0000
Subject: Re: [edk2] ShellExecute crashing in NT emulator
It appears you are using the EDK Shell (not the UEFI shell) since you are using
ShellEnvironment2. Is that your intention?
In the UEFI shell, this would be ShellPkg/Include/Protocol/EfiShell.h and the
corresponding function is:
typedef
EFI_STATUS
(EFIAPI *EFI_SHELL_EXECUTE) (
IN EFI_HANDLE *ParentImageHandle,
IN CHAR16 *CommandLine OPTIONAL,
IN CHAR16 **Environment OPTIONAL,
OUT EFI_STATUS *StatusCode OPTIONAL
);
Tim
From: J. E. [mailto:[email protected]]
Sent: Thursday, September 18, 2014 10:22 PM
To: [email protected]
Subject: Re: [edk2] ShellExecute crashing in NT emulator
Yep thats the first thing I did, search all of UDK for SHELLENV_GET_ENV using
Agent Ransack which searches binary and unicode as well.
I found nothing except for the EfiShellEnvironment2.h and UefiShellLib.lib
files.
No idea where SHELLENV_GET_ENV is defined, it doesnt make sense.
If I boot and run the app in the proper EFI Shell, ShellExecute doesn't hang,
but execution fails. Status is always EFI_SUCCESS
The echo commands in the NSH file do not output text onscreen, and the efi file
in the NSH doesn't launch.
Status = ShellExecute(ImageHandle, L"fs1:", TRUE, NULL, NULL);
Status = ShellExecute(ImageHandle, L"cd fs1:\\TEST", TRUE, NULL, NULL);
Status = ShellExecute(ImageHandle, L"run.nsh", TRUE, NULL, NULL);
The above commands work fine if I type them in manually in the EFI shell.
ShellExecute just seems broken, I can find the code so I cant debug it.
Everything compiles ok.
Maybe I should download the latest source instead of using the UDK2014 release,
or change the compiler to GCC or Intel.
From:
[email protected]
Date: Thu, 18 Sep 2014 18:48:25 -0700
To: [email protected]
Subject: Re: [edk2] ShellExecute crashing in NT emulator
Sent from my iPhone
On Sep 18, 2014, at 6:01 PM, J. E. <[email protected]> wrote:
It is crashing in SHELLENV_EXECUTE but I cant seem to find the c source for
this function in
UDK\ShellPkg\Include\Protocol\EfiShellEnvironment2.h
typedef
EFI_STATUS
(EFIAPI *SHELLENV_EXECUTE) (
IN EFI_HANDLE *ParentImageHandle,
IN CHAR16 *CommandLine,
IN BOOLEAN DebugOutput
);
Which c file has the actual source code?
For protocols look at the global, EFI_GUID. Grep for that global. The producer
will pass it as an argument to install protocol boot service.
Thanks,
Andrew Fish
From:
[email protected]
Date: Thu, 18 Sep 2014 16:38:51 -0700
To: [email protected]
Subject: Re: [edk2] ShellExecute crashing in NT emulator
On Sep 18, 2014, at 4:24 PM, J. E. <[email protected]> wrote:
I am compiling and running secmain from the command line with no debugger,
compiler is VS2005.
Perhaps there is a way to dump the exception to file?
Not sure as I don’t use VC++.
It happens in Windows 7 64 as well.
I'll see if I can debug the ShellExecute function directly to find out which
line is crashing out
Look at:
http://tianocore.sourceforge.net/wiki/NT32
Thanks,
Andrew Fish
From:
[email protected]
Date: Thu, 18 Sep 2014 10:25:30 -0700
To: [email protected]
Subject: Re: [edk2] ShellExecute crashing in NT emulator
On Sep 18, 2014, at 6:22 AM, J. E. <[email protected]> wrote:
The below code is crashing the emulator, any ideas?
Do you get a stack trace and error messages from the crash?
Thanks,
Andrew Fish
Is it a Windows 8 thing? (can't test a Win7 system or via proper EFI shell
right now)
EFI_STATUS
EFIAPI
UefiMain (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = ShellExecute(ImageHandle, L"startup.nsh", FALSE, NULL, NULL);
// Crash dxecore.dll
Status = ShellExecute(ImageHandle, NULL, FALSE, NULL, NULL);
// Crash dxecore.dll
}
UDK2014
Win8.1 64bit
UEFI Mode
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