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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2008, Intel Corporation \r | |
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 | PeCoffLoaderEx.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | IA32, X64 and IPF Specific relocation fixups\r | |
19 | \r | |
20 | Revision History\r | |
21 | \r | |
22 | --*/\r | |
23 | \r | |
24 | #include <Common/UefiBaseTypes.h>\r | |
25 | #include <IndustryStandard/PeImage.h>\r | |
26 | #include "PeCoffLib.h"\r | |
27 | \r | |
28 | #define EXT_IMM64(Value, Address, Size, InstPos, ValPos) \\r | |
29 | Value |= (((UINT64)((*(Address) >> InstPos) & (((UINT64)1 << Size) - 1))) << ValPos)\r | |
30 | \r | |
31 | #define INS_IMM64(Value, Address, Size, InstPos, ValPos) \\r | |
32 | *(UINT32*)Address = (*(UINT32*)Address & ~(((1 << Size) - 1) << InstPos)) | \\r | |
33 | ((UINT32)((((UINT64)Value >> ValPos) & (((UINT64)1 << Size) - 1))) << InstPos)\r | |
34 | \r | |
35 | #define IMM64_IMM7B_INST_WORD_X 3 \r | |
36 | #define IMM64_IMM7B_SIZE_X 7 \r | |
37 | #define IMM64_IMM7B_INST_WORD_POS_X 4 \r | |
38 | #define IMM64_IMM7B_VAL_POS_X 0 \r | |
39 | \r | |
40 | #define IMM64_IMM9D_INST_WORD_X 3 \r | |
41 | #define IMM64_IMM9D_SIZE_X 9 \r | |
42 | #define IMM64_IMM9D_INST_WORD_POS_X 18 \r | |
43 | #define IMM64_IMM9D_VAL_POS_X 7 \r | |
44 | \r | |
45 | #define IMM64_IMM5C_INST_WORD_X 3 \r | |
46 | #define IMM64_IMM5C_SIZE_X 5 \r | |
47 | #define IMM64_IMM5C_INST_WORD_POS_X 13 \r | |
48 | #define IMM64_IMM5C_VAL_POS_X 16 \r | |
49 | \r | |
50 | #define IMM64_IC_INST_WORD_X 3 \r | |
51 | #define IMM64_IC_SIZE_X 1 \r | |
52 | #define IMM64_IC_INST_WORD_POS_X 12 \r | |
53 | #define IMM64_IC_VAL_POS_X 21 \r | |
54 | \r | |
55 | #define IMM64_IMM41a_INST_WORD_X 1 \r | |
56 | #define IMM64_IMM41a_SIZE_X 10 \r | |
57 | #define IMM64_IMM41a_INST_WORD_POS_X 14 \r | |
58 | #define IMM64_IMM41a_VAL_POS_X 22 \r | |
59 | \r | |
60 | #define IMM64_IMM41b_INST_WORD_X 1 \r | |
61 | #define IMM64_IMM41b_SIZE_X 8 \r | |
62 | #define IMM64_IMM41b_INST_WORD_POS_X 24 \r | |
63 | #define IMM64_IMM41b_VAL_POS_X 32 \r | |
64 | \r | |
65 | #define IMM64_IMM41c_INST_WORD_X 2 \r | |
66 | #define IMM64_IMM41c_SIZE_X 23 \r | |
67 | #define IMM64_IMM41c_INST_WORD_POS_X 0 \r | |
68 | #define IMM64_IMM41c_VAL_POS_X 40 \r | |
69 | \r | |
70 | #define IMM64_SIGN_INST_WORD_X 3 \r | |
71 | #define IMM64_SIGN_SIZE_X 1 \r | |
72 | #define IMM64_SIGN_INST_WORD_POS_X 27 \r | |
73 | #define IMM64_SIGN_VAL_POS_X 63 \r | |
74 | \r | |
75 | RETURN_STATUS\r | |
76 | PeCoffLoaderRelocateIa32Image (\r | |
77 | IN UINT16 *Reloc,\r | |
78 | IN OUT CHAR8 *Fixup,\r | |
79 | IN OUT CHAR8 **FixupData,\r | |
80 | IN UINT64 Adjust\r | |
81 | )\r | |
82 | /*++\r | |
83 | \r | |
84 | Routine Description:\r | |
85 | \r | |
86 | Performs an IA-32 specific relocation fixup\r | |
87 | \r | |
88 | Arguments:\r | |
89 | \r | |
90 | Reloc - Pointer to the relocation record\r | |
91 | \r | |
92 | Fixup - Pointer to the address to fix up\r | |
93 | \r | |
94 | FixupData - Pointer to a buffer to log the fixups\r | |
95 | \r | |
96 | Adjust - The offset to adjust the fixup\r | |
97 | \r | |
98 | Returns:\r | |
99 | \r | |
100 | EFI_UNSUPPORTED - Unsupported now\r | |
101 | \r | |
102 | --*/\r | |
103 | {\r | |
104 | return RETURN_UNSUPPORTED;\r | |
105 | }\r | |
106 | \r | |
107 | RETURN_STATUS\r | |
108 | PeCoffLoaderRelocateIpfImage (\r | |
109 | IN UINT16 *Reloc,\r | |
110 | IN OUT CHAR8 *Fixup, \r | |
111 | IN OUT CHAR8 **FixupData,\r | |
112 | IN UINT64 Adjust\r | |
113 | )\r | |
114 | /*++\r | |
115 | \r | |
116 | Routine Description:\r | |
117 | \r | |
118 | Performs an Itanium-based specific relocation fixup\r | |
119 | \r | |
120 | Arguments:\r | |
121 | \r | |
122 | Reloc - Pointer to the relocation record\r | |
123 | \r | |
124 | Fixup - Pointer to the address to fix up\r | |
125 | \r | |
126 | FixupData - Pointer to a buffer to log the fixups\r | |
127 | \r | |
128 | Adjust - The offset to adjust the fixup\r | |
129 | \r | |
130 | Returns:\r | |
131 | \r | |
132 | Status code\r | |
133 | \r | |
134 | --*/\r | |
135 | {\r | |
136 | UINT64 *F64;\r | |
137 | UINT64 FixupVal;\r | |
138 | \r | |
139 | switch ((*Reloc) >> 12) {\r | |
140 | \r | |
141 | case EFI_IMAGE_REL_BASED_DIR64:\r | |
142 | F64 = (UINT64 *) Fixup;\r | |
143 | *F64 = *F64 + (UINT64) Adjust;\r | |
144 | if (*FixupData != NULL) {\r | |
145 | *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));\r | |
146 | *(UINT64 *)(*FixupData) = *F64;\r | |
147 | *FixupData = *FixupData + sizeof(UINT64);\r | |
148 | }\r | |
149 | break;\r | |
150 | \r | |
151 | case EFI_IMAGE_REL_BASED_IA64_IMM64:\r | |
152 | \r | |
153 | //\r | |
154 | // Align it to bundle address before fixing up the\r | |
155 | // 64-bit immediate value of the movl instruction.\r | |
156 | //\r | |
157 | \r | |
158 | Fixup = (CHAR8 *)((UINTN) Fixup & (UINTN) ~(15));\r | |
159 | FixupVal = (UINT64)0;\r | |
160 | \r | |
161 | // \r | |
162 | // Extract the lower 32 bits of IMM64 from bundle\r | |
163 | //\r | |
164 | EXT_IMM64(FixupVal,\r | |
165 | (UINT32 *)Fixup + IMM64_IMM7B_INST_WORD_X,\r | |
166 | IMM64_IMM7B_SIZE_X,\r | |
167 | IMM64_IMM7B_INST_WORD_POS_X,\r | |
168 | IMM64_IMM7B_VAL_POS_X\r | |
169 | );\r | |
170 | \r | |
171 | EXT_IMM64(FixupVal,\r | |
172 | (UINT32 *)Fixup + IMM64_IMM9D_INST_WORD_X,\r | |
173 | IMM64_IMM9D_SIZE_X,\r | |
174 | IMM64_IMM9D_INST_WORD_POS_X,\r | |
175 | IMM64_IMM9D_VAL_POS_X\r | |
176 | );\r | |
177 | \r | |
178 | EXT_IMM64(FixupVal,\r | |
179 | (UINT32 *)Fixup + IMM64_IMM5C_INST_WORD_X,\r | |
180 | IMM64_IMM5C_SIZE_X,\r | |
181 | IMM64_IMM5C_INST_WORD_POS_X,\r | |
182 | IMM64_IMM5C_VAL_POS_X\r | |
183 | );\r | |
184 | \r | |
185 | EXT_IMM64(FixupVal,\r | |
186 | (UINT32 *)Fixup + IMM64_IC_INST_WORD_X,\r | |
187 | IMM64_IC_SIZE_X,\r | |
188 | IMM64_IC_INST_WORD_POS_X,\r | |
189 | IMM64_IC_VAL_POS_X\r | |
190 | );\r | |
191 | \r | |
192 | EXT_IMM64(FixupVal,\r | |
193 | (UINT32 *)Fixup + IMM64_IMM41a_INST_WORD_X,\r | |
194 | IMM64_IMM41a_SIZE_X,\r | |
195 | IMM64_IMM41a_INST_WORD_POS_X,\r | |
196 | IMM64_IMM41a_VAL_POS_X\r | |
197 | );\r | |
198 | \r | |
199 | // \r | |
200 | // Update 64-bit address\r | |
201 | //\r | |
202 | FixupVal += Adjust;\r | |
203 | \r | |
204 | // \r | |
205 | // Insert IMM64 into bundle\r | |
206 | //\r | |
207 | INS_IMM64(FixupVal,\r | |
208 | ((UINT32 *)Fixup + IMM64_IMM7B_INST_WORD_X),\r | |
209 | IMM64_IMM7B_SIZE_X,\r | |
210 | IMM64_IMM7B_INST_WORD_POS_X,\r | |
211 | IMM64_IMM7B_VAL_POS_X\r | |
212 | );\r | |
213 | \r | |
214 | INS_IMM64(FixupVal,\r | |
215 | ((UINT32 *)Fixup + IMM64_IMM9D_INST_WORD_X),\r | |
216 | IMM64_IMM9D_SIZE_X,\r | |
217 | IMM64_IMM9D_INST_WORD_POS_X,\r | |
218 | IMM64_IMM9D_VAL_POS_X\r | |
219 | );\r | |
220 | \r | |
221 | INS_IMM64(FixupVal,\r | |
222 | ((UINT32 *)Fixup + IMM64_IMM5C_INST_WORD_X),\r | |
223 | IMM64_IMM5C_SIZE_X,\r | |
224 | IMM64_IMM5C_INST_WORD_POS_X,\r | |
225 | IMM64_IMM5C_VAL_POS_X\r | |
226 | );\r | |
227 | \r | |
228 | INS_IMM64(FixupVal,\r | |
229 | ((UINT32 *)Fixup + IMM64_IC_INST_WORD_X),\r | |
230 | IMM64_IC_SIZE_X,\r | |
231 | IMM64_IC_INST_WORD_POS_X,\r | |
232 | IMM64_IC_VAL_POS_X\r | |
233 | );\r | |
234 | \r | |
235 | INS_IMM64(FixupVal,\r | |
236 | ((UINT32 *)Fixup + IMM64_IMM41a_INST_WORD_X),\r | |
237 | IMM64_IMM41a_SIZE_X,\r | |
238 | IMM64_IMM41a_INST_WORD_POS_X,\r | |
239 | IMM64_IMM41a_VAL_POS_X\r | |
240 | );\r | |
241 | \r | |
242 | INS_IMM64(FixupVal,\r | |
243 | ((UINT32 *)Fixup + IMM64_IMM41b_INST_WORD_X),\r | |
244 | IMM64_IMM41b_SIZE_X,\r | |
245 | IMM64_IMM41b_INST_WORD_POS_X,\r | |
246 | IMM64_IMM41b_VAL_POS_X\r | |
247 | );\r | |
248 | \r | |
249 | INS_IMM64(FixupVal,\r | |
250 | ((UINT32 *)Fixup + IMM64_IMM41c_INST_WORD_X),\r | |
251 | IMM64_IMM41c_SIZE_X,\r | |
252 | IMM64_IMM41c_INST_WORD_POS_X,\r | |
253 | IMM64_IMM41c_VAL_POS_X\r | |
254 | );\r | |
255 | \r | |
256 | INS_IMM64(FixupVal,\r | |
257 | ((UINT32 *)Fixup + IMM64_SIGN_INST_WORD_X),\r | |
258 | IMM64_SIGN_SIZE_X,\r | |
259 | IMM64_SIGN_INST_WORD_POS_X,\r | |
260 | IMM64_SIGN_VAL_POS_X\r | |
261 | );\r | |
262 | \r | |
263 | F64 = (UINT64 *) Fixup;\r | |
264 | if (*FixupData != NULL) {\r | |
265 | *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));\r | |
266 | *(UINT64 *)(*FixupData) = *F64;\r | |
267 | *FixupData = *FixupData + sizeof(UINT64);\r | |
268 | }\r | |
269 | break;\r | |
270 | \r | |
271 | default:\r | |
272 | return RETURN_UNSUPPORTED;\r | |
273 | }\r | |
274 | \r | |
275 | return RETURN_SUCCESS;\r | |
276 | }\r | |
277 | \r | |
278 | RETURN_STATUS\r | |
279 | PeCoffLoaderRelocateX64Image (\r | |
280 | IN UINT16 *Reloc,\r | |
281 | IN OUT CHAR8 *Fixup, \r | |
282 | IN OUT CHAR8 **FixupData,\r | |
283 | IN UINT64 Adjust\r | |
284 | )\r | |
285 | /**\r | |
286 | Performs an x64 specific relocation fixup\r | |
287 | \r | |
288 | @param Reloc Pointer to the relocation record\r | |
289 | @param Fixup Pointer to the address to fix up\r | |
290 | @param FixupData Pointer to a buffer to log the fixups\r | |
291 | @param Adjust The offset to adjust the fixup\r | |
292 | \r | |
293 | @retval RETURN_SUCCESS Success to perform relocation\r | |
294 | @retval RETURN_UNSUPPORTED Unsupported.\r | |
295 | **/\r | |
296 | {\r | |
297 | UINT64 *F64;\r | |
298 | \r | |
299 | switch ((*Reloc) >> 12) {\r | |
300 | \r | |
301 | case EFI_IMAGE_REL_BASED_DIR64:\r | |
302 | F64 = (UINT64 *) Fixup;\r | |
303 | *F64 = *F64 + (UINT64) Adjust;\r | |
304 | if (*FixupData != NULL) {\r | |
305 | *FixupData = ALIGN_POINTER(*FixupData, sizeof(UINT64));\r | |
306 | *(UINT64 *)(*FixupData) = *F64;\r | |
307 | *FixupData = *FixupData + sizeof(UINT64);\r | |
308 | }\r | |
309 | break;\r | |
310 | \r | |
311 | default:\r | |
312 | return RETURN_UNSUPPORTED;\r | |
313 | }\r | |
314 | \r | |
315 | return RETURN_SUCCESS;\r | |
316 | }\r | |
317 | \r |