1. Sync the latest network stack. Add NetLibCreateIPv4DPathNode () in netlib library.
[mirror_edk2.git] / MdeModulePkg / Universal / DebugSupportDxe / DebugSupport.c
CommitLineData
c1f23d63 1/*++\r
2\r
3Copyright (c) 2006, Intel Corporation \r
4All rights reserved. This program and the accompanying materials \r
5are licensed and made available under the terms and conditions of the BSD License \r
6which accompanies this distribution. The full text of the license may be found at \r
7http://opensource.org/licenses/bsd-license.php \r
8 \r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
11\r
12Module Name:\r
13\r
14 DebugSupport.c\r
15\r
16Abstract:\r
17\r
18 Top level C file for debug support driver. Contains initialization function.\r
19\r
20Revision History\r
21\r
22--*/\r
23\r
24//\r
25// private header files\r
26//\r
27#include "plDebugSupport.h"\r
28\r
29//\r
30// This is a global that is the actual interface\r
31//\r
32EFI_DEBUG_SUPPORT_PROTOCOL gDebugSupportProtocolInterface = {\r
33 EFI_ISA,\r
34 GetMaximumProcessorIndex,\r
35 RegisterPeriodicCallback,\r
36 RegisterExceptionCallback,\r
37 InvalidateInstructionCache\r
38};\r
39\r
40//\r
41// Driver Entry Point\r
42//\r
43EFI_STATUS\r
44InitializeDebugSupportDriver (\r
45 IN EFI_HANDLE ImageHandle,\r
46 IN EFI_SYSTEM_TABLE *SystemTable\r
47 )\r
48/*++\r
49\r
50Routine Description:\r
51 Driver entry point. Checks to see there's not already a DebugSupport protocol\r
52 installed for the selected processor before installing protocol.\r
53\r
54Arguments:\r
55 IN EFI_HANDLE ImageHandle,\r
56 IN EFI_SYSTEM_TABLE *SystemTable\r
57\r
58Returns:\r
59\r
60 EFI_STATUS\r
61\r
62--*/\r
63// TODO: ImageHandle - add argument and description to function comment\r
64// TODO: SystemTable - add argument and description to function comment\r
65{\r
66 EFI_LOADED_IMAGE_PROTOCOL *LoadedImageProtocolPtr;\r
67 EFI_STATUS Status;\r
68 EFI_HANDLE Handle;\r
69 EFI_HANDLE *HandlePtr;\r
70 UINTN NumHandles;\r
71 EFI_DEBUG_SUPPORT_PROTOCOL *DebugSupportProtocolPtr;\r
72\r
73 //\r
74 // Install Protocol Interface...\r
75 //\r
76 // First check to see that the debug support protocol for this processor\r
77 // type is not already installed\r
78 //\r
79 Status = gBS->LocateHandleBuffer (\r
80 ByProtocol,\r
81 &gEfiDebugSupportProtocolGuid,\r
82 NULL,\r
83 &NumHandles,\r
84 &HandlePtr\r
85 );\r
86\r
87 if (Status != EFI_NOT_FOUND) {\r
88 do {\r
89 NumHandles--;\r
90 Status = gBS->OpenProtocol (\r
91 HandlePtr[NumHandles],\r
92 &gEfiDebugSupportProtocolGuid,\r
93 (VOID **) &DebugSupportProtocolPtr,\r
94 ImageHandle,\r
95 NULL,\r
96 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
97 );\r
98 if (Status == EFI_SUCCESS && DebugSupportProtocolPtr->Isa == EFI_ISA) {\r
99 FreePool (HandlePtr);\r
100 Status = EFI_ALREADY_STARTED;\r
101 goto ErrExit;\r
102 }\r
103 } while (NumHandles > 0);\r
104 FreePool (HandlePtr);\r
105 }\r
106\r
107 //\r
108 // Get our image information and install platform specific unload handler\r
109 //\r
110 Status = gBS->OpenProtocol (\r
111 ImageHandle,\r
112 &gEfiLoadedImageProtocolGuid,\r
113 (VOID **) &LoadedImageProtocolPtr,\r
114 ImageHandle,\r
115 NULL,\r
116 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
117 );\r
118 ASSERT (!EFI_ERROR (Status));\r
119 if (Status != EFI_SUCCESS) {\r
120 goto ErrExit;\r
121 }\r
122\r
123 LoadedImageProtocolPtr->Unload = plUnloadDebugSupportDriver;\r
124\r
125 //\r
126 // Call hook for platform specific initialization\r
127 //\r
128 Status = plInitializeDebugSupportDriver ();\r
129 ASSERT (!EFI_ERROR (Status));\r
130 if (Status != EFI_SUCCESS) {\r
131 goto ErrExit;\r
132 }\r
133\r
134 //\r
135 // Install DebugSupport protocol to new handle\r
136 //\r
137 Handle = NULL;\r
138 Status = gBS->InstallProtocolInterface (\r
139 &Handle,\r
140 &gEfiDebugSupportProtocolGuid,\r
141 EFI_NATIVE_INTERFACE,\r
142 &gDebugSupportProtocolInterface\r
143 );\r
144 ASSERT (!EFI_ERROR (Status));\r
145 if (Status != EFI_SUCCESS) {\r
146 goto ErrExit;\r
147 }\r
148\r
149ErrExit:\r
150 return Status;\r
151}\r