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1 | /** @file\r | |
2 | Provides application point extension for "C" style main funciton \r | |
3 | \r | |
4 | Copyright (c) 2009, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Base.h>\r | |
16 | \r | |
17 | #include <Protocol/SimpleFileSystem.h>\r | |
18 | #include <Protocol/EfiShellInterface.h>\r | |
19 | #include <Protocol/EfiShellParameters.h>\r | |
20 | \r | |
21 | #include <Library/ShellCEntryLib.h>\r | |
22 | #include <Library/DebugLib.h>\r | |
23 | \r | |
24 | INTN\r | |
25 | EFIAPI \r | |
26 | ShellAppMain (\r | |
27 | IN INTN Argc, \r | |
28 | IN CHAR16 **Argv\r | |
29 | );\r | |
30 | \r | |
31 | /**\r | |
32 | UEFI entry point for an application that will in turn call the\r | |
33 | ShellAppMain function which has parameters similar to a standard C\r | |
34 | main function.\r | |
35 | \r | |
36 | An application that uses UefiShellCEntryLib must have a ShellAppMain\r | |
37 | function as prototyped in Include/Library/ShellCEntryLib.h.\r | |
38 | \r | |
39 | @param ImageHandle The image handle of the UEFI Application.\r | |
40 | @param SystemTable A pointer to the EFI System Table.\r | |
41 | \r | |
42 | @retval EFI_SUCCESS The application exited normally.\r | |
43 | @retval Other An error occurred.\r | |
44 | \r | |
45 | **/\r | |
46 | EFI_STATUS\r | |
47 | EFIAPI\r | |
48 | ShellCEntryLib (\r | |
49 | IN EFI_HANDLE ImageHandle,\r | |
50 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
51 | )\r | |
52 | {\r | |
53 | INT32 ReturnFromMain;\r | |
54 | EFI_SHELL_PARAMETERS_PROTOCOL *EfiShellParametersProtocol;\r | |
55 | EFI_SHELL_INTERFACE *EfiShellInterface;\r | |
56 | EFI_STATUS Status;\r | |
57 | \r | |
58 | ReturnFromMain = -1;\r | |
59 | EfiShellParametersProtocol = NULL;\r | |
60 | EfiShellInterface = NULL;\r | |
61 | \r | |
62 | Status = SystemTable->BootServices->OpenProtocol(ImageHandle, \r | |
63 | &gEfiShellParametersProtocolGuid,\r | |
64 | (VOID **)&EfiShellParametersProtocol,\r | |
65 | ImageHandle,\r | |
66 | NULL,\r | |
67 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
68 | );\r | |
69 | if (!EFI_ERROR(Status)) {\r | |
70 | //\r | |
71 | // use shell 2.0 interface\r | |
72 | //\r | |
73 | ReturnFromMain = ShellAppMain (\r | |
74 | EfiShellParametersProtocol->Argc,\r | |
75 | EfiShellParametersProtocol->Argv\r | |
76 | );\r | |
77 | } else {\r | |
78 | //\r | |
79 | // try to get shell 1.0 interface instead.\r | |
80 | //\r | |
81 | Status = SystemTable->BootServices->OpenProtocol(ImageHandle, \r | |
82 | &gEfiShellInterfaceGuid,\r | |
83 | (VOID **)&EfiShellInterface,\r | |
84 | ImageHandle,\r | |
85 | NULL,\r | |
86 | EFI_OPEN_PROTOCOL_GET_PROTOCOL\r | |
87 | );\r | |
88 | if (!EFI_ERROR(Status)) {\r | |
89 | //\r | |
90 | // use shell 1.0 interface\r | |
91 | // \r | |
92 | ReturnFromMain = ShellAppMain (\r | |
93 | EfiShellInterface->Argc,\r | |
94 | EfiShellInterface->Argv\r | |
95 | );\r | |
96 | } else {\r | |
97 | ASSERT(FALSE);\r | |
98 | }\r | |
99 | }\r | |
100 | if (ReturnFromMain == 0) {\r | |
101 | return (EFI_SUCCESS);\r | |
102 | } else {\r | |
103 | return (EFI_UNSUPPORTED);\r | |
104 | }\r | |
105 | }\r |