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b06f85ae | 1 | /**@file\r |
2 | \r | |
a3deae0d | 3 | Copyright (c) 2006 - 2010, Intel Corporation\r |
b06f85ae | 4 | All rights reserved. This program and the accompanying materials\r |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | PeCoffGetEntryPoint.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | Tiano PE/COFF loader\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | **/\r | |
23 | \r | |
24 | #include <PiPei.h>\r | |
25 | #include <IndustryStandard/PeImage.h>\r | |
26 | #include <WinNtPeim.h>\r | |
27 | #include <Ppi/NtPeiLoadFile.h>\r | |
28 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
29 | #include <Library/PeiServicesLib.h>\r | |
30 | #include <Library/DebugLib.h>\r | |
31 | \r | |
32 | \r | |
33 | RETURN_STATUS\r | |
34 | EFIAPI\r | |
35 | PeCoffLoaderGetEntryPoint (\r | |
36 | IN VOID *Pe32Data,\r | |
37 | IN OUT VOID **EntryPoint\r | |
38 | )\r | |
39 | /*++\r | |
40 | \r | |
41 | Routine Description:\r | |
42 | \r | |
43 | Loads a PE/COFF image into memory, this is not follow the original purpose of \r | |
44 | PeCoffGetEntryPoint library class. But it's ok that Unix package not run on a real \r | |
45 | platform and this is for source level debug.\r | |
46 | \r | |
47 | Arguments:\r | |
48 | \r | |
49 | Pe32Data - Pointer to a PE/COFF Image\r | |
50 | \r | |
51 | EntryPoint - Pointer to the entry point of the PE/COFF image\r | |
52 | \r | |
53 | Returns:\r | |
54 | \r | |
55 | EFI_SUCCESS if the EntryPoint was returned\r | |
56 | EFI_INVALID_PARAMETER if the EntryPoint could not be found from Pe32Data\r | |
57 | \r | |
58 | --*/\r | |
59 | {\r | |
60 | EFI_STATUS Status;\r | |
61 | EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;\r | |
62 | NT_PEI_LOAD_FILE_PPI *PeiNtService;\r | |
63 | EFI_PHYSICAL_ADDRESS ImageAddress;\r | |
64 | UINT64 ImageSize;\r | |
65 | EFI_PHYSICAL_ADDRESS ImageEntryPoint;\r | |
66 | \r | |
67 | ASSERT (Pe32Data != NULL);\r | |
68 | ASSERT (EntryPoint != NULL);\r | |
69 | \r | |
70 | Status = PeiServicesLocatePpi (\r | |
71 | &gNtPeiLoadFilePpiGuid,\r | |
72 | 0,\r | |
73 | &PpiDescriptor,\r | |
74 | (VOID**)&PeiNtService\r | |
75 | );\r | |
76 | ASSERT_EFI_ERROR (Status);\r | |
77 | \r | |
78 | Status = PeiNtService->PeiLoadFileService (\r | |
79 | Pe32Data,\r | |
80 | &ImageAddress,\r | |
81 | &ImageSize,\r | |
82 | &ImageEntryPoint\r | |
83 | );\r | |
84 | if (EFI_ERROR (Status)) {\r | |
85 | return Status;\r | |
86 | }\r | |
87 | \r | |
88 | *EntryPoint = (VOID*)(UINTN)ImageEntryPoint;\r | |
89 | return Status;\r | |
90 | }\r | |
91 | \r | |
92 | /**\r | |
93 | Returns the machine type of PE/COFF image. \r | |
94 | This is copied from MDE BasePeCoffGetEntryPointLib, the code should be sync with it.\r | |
95 | The reason is NT32 package needs to load the image to memory to support source\r | |
96 | level debug.\r | |
97 | \r | |
98 | \r | |
99 | @param Pe32Data Pointer to a PE/COFF header\r | |
100 | \r | |
101 | @return Machine type or zero if not a valid iamge\r | |
102 | \r | |
103 | **/\r | |
104 | UINT16\r | |
105 | EFIAPI\r | |
106 | PeCoffLoaderGetMachineType (\r | |
107 | IN VOID *Pe32Data\r | |
108 | )\r | |
109 | { \r | |
110 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
111 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
112 | \r | |
113 | ASSERT (Pe32Data != NULL);\r | |
114 | \r | |
115 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
116 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
117 | //\r | |
118 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
119 | //\r | |
120 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
121 | } else {\r | |
122 | //\r | |
123 | // DOS image header is not present, so PE header is at the image base.\r | |
124 | //\r | |
125 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
126 | }\r | |
127 | \r | |
128 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
129 | return Hdr.Te->Machine;\r | |
130 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r | |
131 | return Hdr.Pe32->FileHeader.Machine;\r | |
132 | }\r | |
133 | \r | |
134 | return 0x0000;\r | |
135 | }\r | |
136 | \r | |
137 | /**\r | |
138 | Returns a pointer to the PDB file name for a PE/COFF image that has been\r | |
139 | loaded into system memory with the PE/COFF Loader Library functions.\r | |
140 | \r | |
141 | Returns the PDB file name for the PE/COFF image specified by Pe32Data. If\r | |
142 | the PE/COFF image specified by Pe32Data is not a valid, then NULL is\r | |
143 | returned. If the PE/COFF image specified by Pe32Data does not contain a\r | |
144 | debug directory entry, then NULL is returned. If the debug directory entry\r | |
145 | in the PE/COFF image specified by Pe32Data does not contain a PDB file name,\r | |
146 | then NULL is returned.\r | |
147 | If Pe32Data is NULL, then ASSERT().\r | |
148 | \r | |
149 | @param Pe32Data Pointer to the PE/COFF image that is loaded in system\r | |
150 | memory.\r | |
151 | \r | |
152 | @return The PDB file name for the PE/COFF image specified by Pe32Data or NULL\r | |
153 | if it cannot be retrieved.\r | |
154 | \r | |
155 | **/\r | |
156 | VOID *\r | |
157 | EFIAPI\r | |
158 | PeCoffLoaderGetPdbPointer (\r | |
159 | IN VOID *Pe32Data\r | |
160 | )\r | |
161 | {\r | |
162 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
163 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
164 | EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;\r | |
165 | EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;\r | |
166 | UINTN DirCount;\r | |
167 | VOID *CodeViewEntryPointer;\r | |
168 | INTN TEImageAdjust;\r | |
169 | UINT32 NumberOfRvaAndSizes;\r | |
170 | UINT16 Magic;\r | |
171 | \r | |
172 | ASSERT (Pe32Data != NULL);\r | |
173 | \r | |
174 | TEImageAdjust = 0;\r | |
175 | DirectoryEntry = NULL;\r | |
176 | DebugEntry = NULL;\r | |
177 | NumberOfRvaAndSizes = 0;\r | |
178 | \r | |
179 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
180 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
181 | //\r | |
182 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
183 | //\r | |
184 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
185 | } else {\r | |
186 | //\r | |
187 | // DOS image header is not present, so PE header is at the image base.\r | |
188 | //\r | |
189 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
190 | }\r | |
191 | \r | |
192 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
193 | if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {\r | |
194 | DirectoryEntry = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];\r | |
195 | TEImageAdjust = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;\r | |
196 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +\r | |
197 | Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress +\r | |
198 | TEImageAdjust);\r | |
199 | }\r | |
200 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r | |
201 | //\r | |
202 | // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.\r | |
203 | // It is due to backward-compatibility, for some system might\r | |
204 | // generate PE32+ image with PE32 Magic.\r | |
205 | //\r | |
206 | switch (Hdr.Pe32->FileHeader.Machine) {\r | |
207 | case IMAGE_FILE_MACHINE_I386:\r | |
208 | //\r | |
209 | // Assume PE32 image with IA32 Machine field.\r | |
210 | //\r | |
211 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;\r | |
212 | break;\r | |
213 | case IMAGE_FILE_MACHINE_X64:\r | |
214 | case IMAGE_FILE_MACHINE_IA64:\r | |
215 | //\r | |
216 | // Assume PE32+ image with X64 or IA64 Machine field\r | |
217 | //\r | |
218 | Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;\r | |
219 | break;\r | |
220 | default:\r | |
221 | //\r | |
222 | // For unknow Machine field, use Magic in optional Header\r | |
223 | //\r | |
224 | Magic = Hdr.Pe32->OptionalHeader.Magic;\r | |
225 | }\r | |
226 | \r | |
227 | if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r | |
228 | //\r | |
229 | // Use PE32 offset get Debug Directory Entry\r | |
230 | //\r | |
231 | NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r | |
232 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
233 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);\r | |
234 | } else if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r | |
235 | //\r | |
236 | // Use PE32+ offset get Debug Directory Entry\r | |
237 | //\r | |
238 | NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r | |
239 | DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);\r | |
240 | DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);\r | |
241 | }\r | |
242 | \r | |
243 | if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {\r | |
244 | DirectoryEntry = NULL;\r | |
245 | DebugEntry = NULL;\r | |
246 | }\r | |
247 | } else {\r | |
248 | return NULL;\r | |
249 | }\r | |
250 | \r | |
251 | if (DebugEntry == NULL || DirectoryEntry == NULL) {\r | |
252 | return NULL;\r | |
253 | }\r | |
254 | \r | |
255 | for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {\r | |
256 | if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {\r | |
257 | if (DebugEntry->SizeOfData > 0) {\r | |
258 | CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);\r | |
259 | switch (* (UINT32 *) CodeViewEntryPointer) {\r | |
260 | case CODEVIEW_SIGNATURE_NB10:\r | |
261 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));\r | |
262 | case CODEVIEW_SIGNATURE_RSDS:\r | |
263 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));\r | |
264 | case CODEVIEW_SIGNATURE_MTOC: \r | |
265 | return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));\r | |
266 | break;\r | |
267 | default:\r | |
268 | break;\r | |
269 | }\r | |
270 | }\r | |
271 | }\r | |
272 | }\r | |
273 | \r | |
274 | return NULL;\r | |
275 | }\r | |
225290eb A |
276 | \r |
277 | /**\r | |
278 | Returns the size of the PE/COFF headers\r | |
279 | \r | |
280 | Returns the size of the PE/COFF header specified by Pe32Data.\r | |
281 | If Pe32Data is NULL, then ASSERT().\r | |
282 | \r | |
283 | @param Pe32Data Pointer to the PE/COFF image that is loaded in system\r | |
284 | memory.\r | |
285 | \r | |
a3deae0d | 286 | @return Size of PE/COFF header in bytes or zero if not a valid image.\r |
225290eb A |
287 | \r |
288 | **/\r | |
a3deae0d | 289 | UINT32\r |
290 | EFIAPI\r | |
291 | PeCoffGetSizeOfHeaders (\r | |
292 | IN VOID *Pe32Data\r | |
293 | )\r | |
294 | {\r | |
295 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
296 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
297 | UINTN SizeOfHeaders;\r | |
298 | \r | |
225290eb | 299 | ASSERT (Pe32Data != NULL);\r |
a3deae0d | 300 | \r |
301 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
302 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
303 | //\r | |
304 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
305 | //\r | |
306 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
307 | } else {\r | |
308 | //\r | |
309 | // DOS image header is not present, so PE header is at the image base.\r | |
310 | //\r | |
311 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
312 | }\r | |
313 | \r | |
314 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
315 | SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;\r | |
316 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r | |
317 | SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;\r | |
318 | } else {\r | |
319 | SizeOfHeaders = 0;\r | |
320 | }\r | |
321 | \r | |
322 | return SizeOfHeaders;\r | |
225290eb A |
323 | }\r |
324 | \r |