diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-12-22 17:06:43 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2016-12-26 19:14:49 +0800 |
| commit | 4e4db0c4b54ee5d5377fca0e4c2330286b1b0b41 (patch) | |
| tree | 751790d383df04329bb700e8fe800c3d459eeaae /Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c | |
| parent | 1922f267f671b43de0ea43138ccb5806657056b4 (diff) | |
| download | edk2-platforms-4e4db0c4b54ee5d5377fca0e4c2330286b1b0b41.tar.xz | |
ShellPkg: Move to new location
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c')
| -rw-r--r-- | Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c b/Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c new file mode 100644 index 0000000000..525c1f14cf --- /dev/null +++ b/Core/ShellPkg/Library/UefiShellCEntryLib/UefiShellCEntryLib.c @@ -0,0 +1,99 @@ +/** @file
+ Provides application point extension for "C" style main funciton
+
+ Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
+ 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.
+
+**/
+
+#include <Base.h>
+
+#include <Protocol/SimpleFileSystem.h>
+#include <Protocol/LoadedImage.h>
+#include <Protocol/EfiShellInterface.h>
+#include <Protocol/EfiShellParameters.h>
+
+#include <Library/ShellCEntryLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ UEFI entry point for an application that will in turn call the
+ ShellAppMain function which has parameters similar to a standard C
+ main function.
+
+ An application that uses UefiShellCEntryLib must have a ShellAppMain
+ function as prototyped in Include/Library/ShellCEntryLib.h.
+
+ Note that the Shell uses POSITIVE integers for error values, while UEFI
+ uses NEGATIVE values. If the application is to be used within a script,
+ it needs to return one of the SHELL_STATUS values defined in ShellBase.h.
+
+ @param ImageHandle The image handle of the UEFI Application.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The application exited normally.
+ @retval Other An error occurred.
+
+**/
+EFI_STATUS
+EFIAPI
+ShellCEntryLib (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ INTN ReturnFromMain;
+ EFI_SHELL_PARAMETERS_PROTOCOL *EfiShellParametersProtocol;
+ EFI_SHELL_INTERFACE *EfiShellInterface;
+ EFI_STATUS Status;
+
+ ReturnFromMain = -1;
+ EfiShellParametersProtocol = NULL;
+ EfiShellInterface = NULL;
+
+ Status = SystemTable->BootServices->OpenProtocol(ImageHandle,
+ &gEfiShellParametersProtocolGuid,
+ (VOID **)&EfiShellParametersProtocol,
+ ImageHandle,
+ NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (!EFI_ERROR(Status)) {
+ //
+ // use shell 2.0 interface
+ //
+ ReturnFromMain = ShellAppMain (
+ EfiShellParametersProtocol->Argc,
+ EfiShellParametersProtocol->Argv
+ );
+ } else {
+ //
+ // try to get shell 1.0 interface instead.
+ //
+ Status = SystemTable->BootServices->OpenProtocol(ImageHandle,
+ &gEfiShellInterfaceGuid,
+ (VOID **)&EfiShellInterface,
+ ImageHandle,
+ NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (!EFI_ERROR(Status)) {
+ //
+ // use shell 1.0 interface
+ //
+ ReturnFromMain = ShellAppMain (
+ EfiShellInterface->Argc,
+ EfiShellInterface->Argv
+ );
+ } else {
+ ASSERT(FALSE);
+ }
+ }
+ return ReturnFromMain;
+}
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