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99ad8390 | 1 | /* BFD back-end for Intel 386 PE IMAGE COFF files. |
d87bef3a | 2 | Copyright (C) 2006-2023 Free Software Foundation, Inc. |
99ad8390 NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
99ad8390 NC |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. | |
68ffbac6 | 20 | |
99ad8390 NC |
21 | Written by Kai Tietz, OneVision Software GmbH&CoKg. */ |
22 | ||
99ad8390 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
99ad8390 | 25 | |
07d6d2b8 AM |
26 | #define TARGET_SYM x86_64_pei_vec |
27 | #define TARGET_NAME "pei-x86-64" | |
99ad8390 NC |
28 | #define COFF_IMAGE_WITH_PE |
29 | #define COFF_WITH_PE | |
30 | #define COFF_WITH_pex64 | |
0a1b45a2 | 31 | #define PCRELOFFSET true |
ef72a554 | 32 | #if defined (USE_MINGW64_LEADING_UNDERSCORES) |
07d6d2b8 | 33 | #define TARGET_UNDERSCORE '_' |
ef72a554 | 34 | #else |
07d6d2b8 | 35 | #define TARGET_UNDERSCORE 0 |
ef72a554 | 36 | #endif |
88183869 DK |
37 | /* Long section names not allowed in executable images, only object files. */ |
38 | #define COFF_LONG_SECTION_NAMES 0 | |
99ad8390 NC |
39 | #define COFF_SUPPORT_GNU_LINKONCE |
40 | #define COFF_LONG_FILENAMES | |
e48570bb | 41 | #define PDATA_ROW_SIZE (3 * 4) |
99ad8390 NC |
42 | |
43 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ | |
44 | { COFF_SECTION_NAME_EXACT_MATCH (".bss"), \ | |
45 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ | |
51ec9544 | 46 | { COFF_SECTION_NAME_PARTIAL_MATCH (".data"), \ |
99ad8390 | 47 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
51ec9544 | 48 | { COFF_SECTION_NAME_PARTIAL_MATCH (".rdata"), \ |
99ad8390 | 49 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
51ec9544 | 50 | { COFF_SECTION_NAME_PARTIAL_MATCH (".text"), \ |
99ad8390 NC |
51 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 4 }, \ |
52 | { COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \ | |
53 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
54 | { COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \ | |
55 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
56 | { COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \ | |
57 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
58 | { COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \ | |
59 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 } | |
60 | ||
e48570bb DK |
61 | /* Note we have to make sure not to include headers twice. |
62 | Not all headers are wrapped in #ifdef guards, so we define | |
63 | PEI_HEADERS to prevent double including in coff-x86_64.c */ | |
64 | #define PEI_HEADERS | |
65 | #include "sysdep.h" | |
66 | #include "bfd.h" | |
67 | #include "libbfd.h" | |
68 | #include "coff/x86_64.h" | |
69 | #include "coff/internal.h" | |
70 | #include "coff/pe.h" | |
71 | #include "libcoff.h" | |
72 | #include "libpei.h" | |
73 | #include "libiberty.h" | |
74 | ||
75 | #undef AOUTSZ | |
76 | #define AOUTSZ PEPAOUTSZ | |
77 | #define PEAOUTHDR PEPAOUTHDR | |
78 | ||
48d5accb TG |
79 | /* Name of registers according to SEH conventions. */ |
80 | ||
81 | static const char * const pex_regs[16] = { | |
e48570bb DK |
82 | "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi", |
83 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15" | |
84 | }; | |
85 | ||
48d5accb TG |
86 | /* Swap in a runtime function. */ |
87 | ||
e48570bb DK |
88 | static void |
89 | pex64_get_runtime_function (bfd *abfd, struct pex64_runtime_function *rf, | |
90 | const void *data) | |
91 | { | |
92 | const struct external_pex64_runtime_function *ex_rf = | |
93 | (const struct external_pex64_runtime_function *) data; | |
94 | rf->rva_BeginAddress = bfd_get_32 (abfd, ex_rf->rva_BeginAddress); | |
95 | rf->rva_EndAddress = bfd_get_32 (abfd, ex_rf->rva_EndAddress); | |
96 | rf->rva_UnwindData = bfd_get_32 (abfd, ex_rf->rva_UnwindData); | |
e48570bb DK |
97 | } |
98 | ||
48d5accb TG |
99 | /* Swap in unwind info header. */ |
100 | ||
0a1b45a2 | 101 | static bool |
3e33b239 NC |
102 | pex64_get_unwind_info (bfd *abfd, struct pex64_unwind_info *ui, |
103 | void *data, void *data_end) | |
e48570bb DK |
104 | { |
105 | struct external_pex64_unwind_info *ex_ui = | |
106 | (struct external_pex64_unwind_info *) data; | |
107 | bfd_byte *ex_dta = (bfd_byte *) data; | |
3e33b239 | 108 | bfd_byte *ex_dta_end = (bfd_byte *) data_end; |
e48570bb DK |
109 | |
110 | memset (ui, 0, sizeof (struct pex64_unwind_info)); | |
3e33b239 | 111 | |
ecfc6ddb | 112 | if (ex_dta_end - ex_dta < 4) |
0a1b45a2 | 113 | return false; |
3e33b239 | 114 | |
e48570bb DK |
115 | ui->Version = PEX64_UWI_VERSION (ex_ui->Version_Flags); |
116 | ui->Flags = PEX64_UWI_FLAGS (ex_ui->Version_Flags); | |
117 | ui->SizeOfPrologue = (bfd_vma) ex_ui->SizeOfPrologue; | |
118 | ui->CountOfCodes = (bfd_vma) ex_ui->CountOfCodes; | |
119 | ui->FrameRegister = PEX64_UWI_FRAMEREG (ex_ui->FrameRegisterOffset); | |
120 | ui->FrameOffset = PEX64_UWI_FRAMEOFF (ex_ui->FrameRegisterOffset); | |
121 | ui->sizeofUnwindCodes = PEX64_UWI_SIZEOF_UWCODE_ARRAY (ui->CountOfCodes); | |
122 | ui->SizeOfBlock = ui->sizeofUnwindCodes + 4; | |
3e33b239 NC |
123 | ui->rawUnwindCodes = ex_dta + 4; |
124 | ui->rawUnwindCodesEnd = ex_dta_end; | |
854399ea | 125 | |
ecfc6ddb | 126 | if ((size_t) (ex_dta_end - ex_dta) < ui->SizeOfBlock) |
0a1b45a2 | 127 | return false; |
ecfc6ddb | 128 | ex_dta += ui->SizeOfBlock; |
4b24dd1a | 129 | |
e48570bb DK |
130 | switch (ui->Flags) |
131 | { | |
e48570bb | 132 | case UNW_FLAG_CHAININFO: |
ecfc6ddb | 133 | if (ex_dta_end - ex_dta < 12) |
0a1b45a2 | 134 | return false; |
48d5accb TG |
135 | ui->rva_BeginAddress = bfd_get_32 (abfd, ex_dta + 0); |
136 | ui->rva_EndAddress = bfd_get_32 (abfd, ex_dta + 4); | |
137 | ui->rva_UnwindData = bfd_get_32 (abfd, ex_dta + 8); | |
138 | ui->SizeOfBlock += 12; | |
0a1b45a2 | 139 | return true; |
48d5accb TG |
140 | case UNW_FLAG_EHANDLER: |
141 | case UNW_FLAG_UHANDLER: | |
142 | case UNW_FLAG_FHANDLER: | |
ecfc6ddb | 143 | if (ex_dta_end - ex_dta < 4) |
0a1b45a2 | 144 | return false; |
48d5accb | 145 | ui->rva_ExceptionHandler = bfd_get_32 (abfd, ex_dta); |
e48570bb | 146 | ui->SizeOfBlock += 4; |
0a1b45a2 | 147 | return true; |
e48570bb | 148 | default: |
0a1b45a2 | 149 | return true; |
e48570bb | 150 | } |
e48570bb DK |
151 | } |
152 | ||
48d5accb TG |
153 | /* Display unwind codes. */ |
154 | ||
e48570bb | 155 | static void |
48d5accb | 156 | pex64_xdata_print_uwd_codes (FILE *file, bfd *abfd, |
2b597f54 TG |
157 | struct pex64_unwind_info *ui, |
158 | struct pex64_runtime_function *rf) | |
e48570bb | 159 | { |
48d5accb TG |
160 | unsigned int i; |
161 | unsigned int tmp; /* At least 32 bits. */ | |
162 | int save_allowed; | |
e48570bb | 163 | |
48d5accb | 164 | if (ui->CountOfCodes == 0 || ui->rawUnwindCodes == NULL) |
e48570bb DK |
165 | return; |
166 | ||
48d5accb TG |
167 | /* According to UNWIND_CODE documentation: |
168 | If an FP reg is used, the any unwind code taking an offset must only be | |
169 | used after the FP reg is established in the prolog. | |
170 | But there are counter examples of that in system dlls... */ | |
0a1b45a2 | 171 | save_allowed = true; |
e48570bb | 172 | |
48d5accb TG |
173 | i = 0; |
174 | ||
ecfc6ddb AM |
175 | if ((size_t) (ui->rawUnwindCodesEnd - ui->rawUnwindCodes) |
176 | < ui->CountOfCodes * 2) | |
3e33b239 NC |
177 | { |
178 | fprintf (file, _("warning: corrupt unwind data\n")); | |
179 | return; | |
180 | } | |
181 | ||
2b597f54 TG |
182 | if (ui->Version == 2 |
183 | && PEX64_UNWCODE_CODE (ui->rawUnwindCodes[1]) == UWOP_EPILOG) | |
48d5accb | 184 | { |
2b597f54 | 185 | /* Display epilog opcode (whose docoding is not fully documented). |
07d6d2b8 | 186 | Looks to be designed to speed-up unwinding, as there is no need |
2b597f54 TG |
187 | to decode instruction flow if outside an epilog. */ |
188 | unsigned int func_size = rf->rva_EndAddress - rf->rva_BeginAddress; | |
189 | ||
190 | fprintf (file, "\tv2 epilog (length: %02x) at pc+:", | |
191 | ui->rawUnwindCodes[0]); | |
3e33b239 | 192 | |
2b597f54 TG |
193 | if (PEX64_UNWCODE_INFO (ui->rawUnwindCodes[1])) |
194 | fprintf (file, " 0x%x", func_size - ui->rawUnwindCodes[0]); | |
3e33b239 | 195 | |
2b597f54 | 196 | i++; |
48d5accb | 197 | for (; i < ui->CountOfCodes; i++) |
e48570bb | 198 | { |
48d5accb | 199 | const bfd_byte *dta = ui->rawUnwindCodes + 2 * i; |
2b597f54 | 200 | unsigned int off; |
48d5accb | 201 | |
2b597f54 | 202 | if (PEX64_UNWCODE_CODE (dta[1]) != UWOP_EPILOG) |
48d5accb | 203 | break; |
2b597f54 TG |
204 | off = dta[0] | (PEX64_UNWCODE_INFO (dta[1]) << 8); |
205 | if (off == 0) | |
206 | fprintf (file, " [pad]"); | |
207 | else | |
208 | fprintf (file, " 0x%x", func_size - off); | |
e48570bb | 209 | } |
48d5accb | 210 | fputc ('\n', file); |
e48570bb | 211 | } |
48d5accb TG |
212 | |
213 | for (; i < ui->CountOfCodes; i++) | |
e48570bb | 214 | { |
48d5accb TG |
215 | const bfd_byte *dta = ui->rawUnwindCodes + 2 * i; |
216 | unsigned int info = PEX64_UNWCODE_INFO (dta[1]); | |
0a1b45a2 | 217 | int unexpected = false; |
48d5accb TG |
218 | |
219 | fprintf (file, "\t pc+0x%02x: ", (unsigned int) dta[0]); | |
03da31c6 | 220 | |
e48570bb DK |
221 | switch (PEX64_UNWCODE_CODE (dta[1])) |
222 | { | |
223 | case UWOP_PUSH_NONVOL: | |
48d5accb | 224 | fprintf (file, "push %s", pex_regs[info]); |
e48570bb | 225 | break; |
03da31c6 | 226 | |
e48570bb | 227 | case UWOP_ALLOC_LARGE: |
48d5accb | 228 | if (info == 0) |
e48570bb | 229 | { |
ecfc6ddb | 230 | if (ui->rawUnwindCodesEnd - dta < 4) |
03da31c6 NC |
231 | { |
232 | fprintf (file, _("warning: corrupt unwind data\n")); | |
233 | return; | |
234 | } | |
235 | tmp = bfd_get_16 (abfd, dta + 2) * 8; | |
48d5accb | 236 | i++; |
e48570bb DK |
237 | } |
238 | else | |
48d5accb | 239 | { |
ecfc6ddb | 240 | if (ui->rawUnwindCodesEnd - dta < 6) |
03da31c6 NC |
241 | { |
242 | fprintf (file, _("warning: corrupt unwind data\n")); | |
243 | return; | |
244 | } | |
245 | tmp = bfd_get_32 (abfd, dta + 2); | |
48d5accb TG |
246 | i += 2; |
247 | } | |
248 | fprintf (file, "alloc large area: rsp = rsp - 0x%x", tmp); | |
e48570bb | 249 | break; |
03da31c6 | 250 | |
e48570bb | 251 | case UWOP_ALLOC_SMALL: |
48d5accb | 252 | fprintf (file, "alloc small area: rsp = rsp - 0x%x", (info + 1) * 8); |
e48570bb | 253 | break; |
03da31c6 | 254 | |
e48570bb | 255 | case UWOP_SET_FPREG: |
48d5accb TG |
256 | /* According to the documentation, info field is unused. */ |
257 | fprintf (file, "FPReg: %s = rsp + 0x%x (info = 0x%x)", | |
258 | pex_regs[ui->FrameRegister], | |
259 | (unsigned int) ui->FrameOffset * 16, info); | |
260 | unexpected = ui->FrameRegister == 0; | |
0a1b45a2 | 261 | save_allowed = false; |
e48570bb | 262 | break; |
03da31c6 | 263 | |
e48570bb | 264 | case UWOP_SAVE_NONVOL: |
ecfc6ddb | 265 | if (ui->rawUnwindCodesEnd - dta < 4) |
03da31c6 NC |
266 | { |
267 | fprintf (file, _("warning: corrupt unwind data\n")); | |
268 | return; | |
269 | } | |
270 | tmp = bfd_get_16 (abfd, dta + 2) * 8; | |
48d5accb TG |
271 | i++; |
272 | fprintf (file, "save %s at rsp + 0x%x", pex_regs[info], tmp); | |
273 | unexpected = !save_allowed; | |
e48570bb | 274 | break; |
03da31c6 | 275 | |
e48570bb | 276 | case UWOP_SAVE_NONVOL_FAR: |
ecfc6ddb | 277 | if (ui->rawUnwindCodesEnd - dta < 6) |
03da31c6 NC |
278 | { |
279 | fprintf (file, _("warning: corrupt unwind data\n")); | |
280 | return; | |
281 | } | |
282 | tmp = bfd_get_32 (abfd, dta + 2); | |
48d5accb TG |
283 | i += 2; |
284 | fprintf (file, "save %s at rsp + 0x%x", pex_regs[info], tmp); | |
285 | unexpected = !save_allowed; | |
e48570bb | 286 | break; |
03da31c6 | 287 | |
e48570bb | 288 | case UWOP_SAVE_XMM: |
48d5accb TG |
289 | if (ui->Version == 1) |
290 | { | |
ecfc6ddb | 291 | if (ui->rawUnwindCodesEnd - dta < 4) |
03da31c6 NC |
292 | { |
293 | fprintf (file, _("warning: corrupt unwind data\n")); | |
294 | return; | |
295 | } | |
296 | tmp = bfd_get_16 (abfd, dta + 2) * 8; | |
48d5accb TG |
297 | i++; |
298 | fprintf (file, "save mm%u at rsp + 0x%x", info, tmp); | |
299 | unexpected = !save_allowed; | |
300 | } | |
301 | else if (ui->Version == 2) | |
302 | { | |
2b597f54 | 303 | fprintf (file, "epilog %02x %01x", dta[0], info); |
0a1b45a2 | 304 | unexpected = true; |
48d5accb | 305 | } |
e48570bb | 306 | break; |
03da31c6 | 307 | |
e48570bb | 308 | case UWOP_SAVE_XMM_FAR: |
ecfc6ddb | 309 | if (ui->rawUnwindCodesEnd - dta < 6) |
03da31c6 NC |
310 | { |
311 | fprintf (file, _("warning: corrupt unwind data\n")); | |
312 | return; | |
313 | } | |
314 | tmp = bfd_get_32 (abfd, dta + 2) * 8; | |
48d5accb TG |
315 | i += 2; |
316 | fprintf (file, "save mm%u at rsp + 0x%x", info, tmp); | |
317 | unexpected = !save_allowed; | |
e48570bb | 318 | break; |
03da31c6 | 319 | |
e48570bb | 320 | case UWOP_SAVE_XMM128: |
ecfc6ddb | 321 | if (ui->rawUnwindCodesEnd - dta < 4) |
03da31c6 NC |
322 | { |
323 | fprintf (file, _("warning: corrupt unwind data\n")); | |
324 | return; | |
325 | } | |
326 | tmp = bfd_get_16 (abfd, dta + 2) * 16; | |
48d5accb TG |
327 | i++; |
328 | fprintf (file, "save xmm%u at rsp + 0x%x", info, tmp); | |
329 | unexpected = !save_allowed; | |
e48570bb | 330 | break; |
03da31c6 | 331 | |
e48570bb | 332 | case UWOP_SAVE_XMM128_FAR: |
ecfc6ddb | 333 | if (ui->rawUnwindCodesEnd - dta < 6) |
03da31c6 NC |
334 | { |
335 | fprintf (file, _("warning: corrupt unwind data\n")); | |
336 | return; | |
337 | } | |
338 | tmp = bfd_get_32 (abfd, dta + 2) * 16; | |
48d5accb TG |
339 | i += 2; |
340 | fprintf (file, "save xmm%u at rsp + 0x%x", info, tmp); | |
341 | unexpected = !save_allowed; | |
e48570bb | 342 | break; |
03da31c6 | 343 | |
e48570bb DK |
344 | case UWOP_PUSH_MACHFRAME: |
345 | fprintf (file, "interrupt entry (SS, old RSP, EFLAGS, CS, RIP"); | |
48d5accb TG |
346 | if (info == 0) |
347 | fprintf (file, ")"); | |
348 | else if (info == 1) | |
349 | fprintf (file, ",ErrorCode)"); | |
e48570bb | 350 | else |
48d5accb | 351 | fprintf (file, ", unknown(%u))", info); |
e48570bb | 352 | break; |
03da31c6 | 353 | |
e48570bb | 354 | default: |
0a9d414a NC |
355 | /* PR 17512: file: 2245-7442-0.004. */ |
356 | fprintf (file, _("Unknown: %x"), PEX64_UNWCODE_CODE (dta[1])); | |
357 | break; | |
03da31c6 NC |
358 | } |
359 | ||
48d5accb TG |
360 | if (unexpected) |
361 | fprintf (file, " [Unexpected!]"); | |
362 | fputc ('\n', file); | |
e48570bb DK |
363 | } |
364 | } | |
365 | ||
48d5accb TG |
366 | /* Check wether section SEC_NAME contains the xdata at address ADDR. */ |
367 | ||
e48570bb DK |
368 | static asection * |
369 | pex64_get_section_by_rva (bfd *abfd, bfd_vma addr, const char *sec_name) | |
370 | { | |
371 | asection *section = bfd_get_section_by_name (abfd, sec_name); | |
372 | bfd_vma vsize; | |
373 | bfd_size_type datasize = 0; | |
374 | ||
375 | if (section == NULL | |
376 | || coff_section_data (abfd, section) == NULL | |
377 | || pei_section_data (abfd, section) == NULL) | |
378 | return NULL; | |
379 | vsize = section->vma - pe_data (abfd)->pe_opthdr.ImageBase; | |
380 | datasize = section->size; | |
381 | if (!datasize || vsize > addr || (vsize + datasize) < addr) | |
382 | return NULL; | |
383 | return section; | |
384 | } | |
385 | ||
2b597f54 TG |
386 | /* Dump xdata at for function RF to FILE. The argument XDATA_SECTION |
387 | designate the bfd section containing the xdata, XDATA is its content, | |
388 | and ENDX the size if known (or NULL). */ | |
48d5accb | 389 | |
e48570bb | 390 | static void |
48d5accb | 391 | pex64_dump_xdata (FILE *file, bfd *abfd, |
2b597f54 TG |
392 | asection *xdata_section, bfd_byte *xdata, bfd_vma *endx, |
393 | struct pex64_runtime_function *rf) | |
e48570bb | 394 | { |
48d5accb | 395 | bfd_vma vaddr; |
2eb03909 | 396 | bfd_vma end_addr; |
2b597f54 | 397 | bfd_vma addr = rf->rva_UnwindData; |
0a9d414a | 398 | bfd_size_type sec_size = xdata_section->rawsize > 0 ? xdata_section->rawsize : xdata_section->size; |
48d5accb | 399 | struct pex64_unwind_info ui; |
e48570bb | 400 | |
48d5accb TG |
401 | vaddr = xdata_section->vma - pe_data (abfd)->pe_opthdr.ImageBase; |
402 | addr -= vaddr; | |
2eb03909 | 403 | |
0a9d414a NC |
404 | /* PR 17512: file: 2245-7442-0.004. */ |
405 | if (addr >= sec_size) | |
406 | { | |
407 | fprintf (file, _("warning: xdata section corrupt\n")); | |
408 | return; | |
409 | } | |
410 | ||
1360ae66 | 411 | if (endx) |
0a9d414a NC |
412 | { |
413 | end_addr = endx[0] - vaddr; | |
414 | /* PR 17512: file: 2245-7442-0.004. */ | |
415 | if (end_addr > sec_size) | |
416 | { | |
3e33b239 | 417 | fprintf (file, _("warning: xdata section corrupt\n")); |
0a9d414a NC |
418 | end_addr = sec_size; |
419 | } | |
420 | } | |
1360ae66 | 421 | else |
0a9d414a | 422 | end_addr = sec_size; |
e48570bb | 423 | |
3e33b239 NC |
424 | if (! pex64_get_unwind_info (abfd, &ui, xdata + addr, xdata + end_addr)) |
425 | { | |
426 | fprintf (file, _("warning: xdata section corrupt\n")); | |
427 | return; | |
428 | } | |
1b786873 | 429 | |
48d5accb TG |
430 | if (ui.Version != 1 && ui.Version != 2) |
431 | { | |
432 | unsigned int i; | |
433 | fprintf (file, "\tVersion %u (unknown).\n", | |
434 | (unsigned int) ui.Version); | |
435 | for (i = 0; addr < end_addr; addr += 1, i++) | |
e48570bb | 436 | { |
48d5accb TG |
437 | if ((i & 15) == 0) |
438 | fprintf (file, "\t %03x:", i); | |
439 | fprintf (file, " %02x", xdata[addr]); | |
440 | if ((i & 15) == 15) | |
441 | fprintf (file, "\n"); | |
e48570bb | 442 | } |
48d5accb TG |
443 | if ((i & 15) != 0) |
444 | fprintf (file, "\n"); | |
445 | return; | |
446 | } | |
e48570bb | 447 | |
48d5accb TG |
448 | fprintf (file, "\tVersion: %d, Flags: ", ui.Version); |
449 | switch (ui.Flags) | |
450 | { | |
451 | case UNW_FLAG_NHANDLER: | |
452 | fprintf (file, "none"); | |
453 | break; | |
454 | case UNW_FLAG_EHANDLER: | |
455 | fprintf (file, "UNW_FLAG_EHANDLER"); | |
456 | break; | |
457 | case UNW_FLAG_UHANDLER: | |
458 | fprintf (file, "UNW_FLAG_UHANDLER"); | |
459 | break; | |
460 | case UNW_FLAG_FHANDLER: | |
461 | fprintf | |
462 | (file, "UNW_FLAG_EHANDLER | UNW_FLAG_UHANDLER"); | |
463 | break; | |
464 | case UNW_FLAG_CHAININFO: | |
465 | fprintf (file, "UNW_FLAG_CHAININFO"); | |
466 | break; | |
467 | default: | |
468 | fprintf (file, "unknown flags value 0x%x", (unsigned int) ui.Flags); | |
469 | break; | |
470 | } | |
471 | fputc ('\n', file); | |
472 | fprintf (file, "\tNbr codes: %u, ", (unsigned int) ui.CountOfCodes); | |
473 | fprintf (file, "Prologue size: 0x%02x, Frame offset: 0x%x, ", | |
474 | (unsigned int) ui.SizeOfPrologue, (unsigned int) ui.FrameOffset); | |
475 | fprintf (file, "Frame reg: %s\n", | |
476 | ui.FrameRegister == 0 ? "none" | |
477 | : pex_regs[(unsigned int) ui.FrameRegister]); | |
478 | ||
0a9d414a | 479 | /* PR 17512: file: 2245-7442-0.004. */ |
854399ea | 480 | if (ui.CountOfCodes * 2 + ui.rawUnwindCodes > xdata + xdata_section->size) |
0a9d414a NC |
481 | fprintf (file, _("Too many unwind codes (%ld)\n"), (long) ui.CountOfCodes); |
482 | else | |
483 | pex64_xdata_print_uwd_codes (file, abfd, &ui, rf); | |
48d5accb TG |
484 | |
485 | switch (ui.Flags) | |
486 | { | |
487 | case UNW_FLAG_EHANDLER: | |
488 | case UNW_FLAG_UHANDLER: | |
489 | case UNW_FLAG_FHANDLER: | |
f493c217 AM |
490 | fprintf (file, "\tHandler: %016" PRIx64 ".\n", |
491 | ui.rva_ExceptionHandler + pe_data (abfd)->pe_opthdr.ImageBase); | |
48d5accb TG |
492 | break; |
493 | case UNW_FLAG_CHAININFO: | |
f493c217 AM |
494 | fprintf (file, "\tChain: start: %016" PRIx64 ", end: %016" PRIx64, |
495 | ui.rva_BeginAddress, ui.rva_EndAddress); | |
496 | fprintf (file, "\n\t unwind data: %016" PRIx64 ".\n", | |
497 | ui.rva_UnwindData); | |
48d5accb TG |
498 | break; |
499 | } | |
500 | ||
501 | /* Now we need end of this xdata block. */ | |
502 | addr += ui.SizeOfBlock; | |
503 | if (addr < end_addr) | |
504 | { | |
505 | unsigned int i; | |
506 | fprintf (file,"\tUser data:\n"); | |
507 | for (i = 0; addr < end_addr; addr += 1, i++) | |
508 | { | |
509 | if ((i & 15) == 0) | |
510 | fprintf (file, "\t %03x:", i); | |
511 | fprintf (file, " %02x", xdata[addr]); | |
512 | if ((i & 15) == 15) | |
2eb03909 | 513 | fprintf (file, "\n"); |
48d5accb TG |
514 | } |
515 | if ((i & 15) != 0) | |
516 | fprintf (file, "\n"); | |
e48570bb | 517 | } |
e48570bb DK |
518 | } |
519 | ||
48d5accb TG |
520 | /* Helper function to sort xdata. The entries of xdata are sorted to know |
521 | the size of each entry. */ | |
522 | ||
1360ae66 KT |
523 | static int |
524 | sort_xdata_arr (const void *l, const void *r) | |
525 | { | |
526 | const bfd_vma *lp = (const bfd_vma *) l; | |
527 | const bfd_vma *rp = (const bfd_vma *) r; | |
528 | ||
529 | if (*lp == *rp) | |
530 | return 0; | |
531 | return (*lp < *rp ? -1 : 1); | |
532 | } | |
533 | ||
48d5accb TG |
534 | /* Display unwind tables for x86-64. */ |
535 | ||
0a1b45a2 | 536 | static bool |
854399ea | 537 | pex64_bfd_print_pdata_section (bfd *abfd, void *vfile, asection *pdata_section) |
e48570bb DK |
538 | { |
539 | FILE *file = (FILE *) vfile; | |
48d5accb TG |
540 | bfd_byte *pdata = NULL; |
541 | bfd_byte *xdata = NULL; | |
854399ea | 542 | asection *xdata_section = NULL; |
48d5accb | 543 | bfd_vma xdata_base; |
e48570bb | 544 | bfd_size_type i; |
854399ea | 545 | bfd_size_type datasize; |
2eb03909 | 546 | bfd_size_type stop; |
854399ea PM |
547 | bfd_vma prev_beginaddress = (bfd_vma) -1; |
548 | bfd_vma prev_unwinddata_rva = (bfd_vma) -1; | |
48d5accb | 549 | bfd_vma imagebase; |
e48570bb | 550 | int onaline = PDATA_ROW_SIZE; |
2eb03909 | 551 | int seen_error = 0; |
48d5accb | 552 | bfd_vma *xdata_arr = NULL; |
1360ae66 | 553 | int xdata_arr_cnt; |
0a1b45a2 | 554 | bool virt_size_is_zero = false; |
e48570bb | 555 | |
48d5accb TG |
556 | /* Sanity checks. */ |
557 | if (pdata_section == NULL | |
558 | || coff_section_data (abfd, pdata_section) == NULL | |
559 | || pei_section_data (abfd, pdata_section) == NULL) | |
0a1b45a2 | 560 | return true; |
e48570bb | 561 | |
48d5accb | 562 | stop = pei_section_data (abfd, pdata_section)->virt_size; |
854399ea PM |
563 | if ((stop % onaline) != 0) |
564 | fprintf (file, | |
695344c0 | 565 | /* xgettext:c-format */ |
854399ea PM |
566 | _("Warning: %s section size (%ld) is not a multiple of %d\n"), |
567 | pdata_section->name, (long) stop, onaline); | |
568 | ||
569 | datasize = pdata_section->size; | |
570 | if (datasize == 0) | |
6937bb54 | 571 | { |
854399ea PM |
572 | if (stop) |
573 | fprintf (file, _("Warning: %s section size is zero\n"), | |
574 | pdata_section->name); | |
0a1b45a2 | 575 | return true; |
6937bb54 | 576 | } |
854399ea PM |
577 | |
578 | /* virt_size might be zero for objects. */ | |
579 | if (stop == 0 && strcmp (abfd->xvec->name, "pe-x86-64") == 0) | |
580 | { | |
179f2db0 | 581 | stop = datasize; |
0a1b45a2 | 582 | virt_size_is_zero = true; |
854399ea PM |
583 | } |
584 | else if (datasize < stop) | |
585 | { | |
586 | fprintf (file, | |
695344c0 | 587 | /* xgettext:c-format */ |
854399ea | 588 | _("Warning: %s section size (%ld) is smaller than virtual size (%ld)\n"), |
09eb8b7b L |
589 | pdata_section->name, (unsigned long) datasize, |
590 | (unsigned long) stop); | |
179f2db0 AM |
591 | /* Be sure not to read past datasize. */ |
592 | stop = datasize; | |
854399ea | 593 | } |
e48570bb | 594 | |
48d5accb | 595 | /* Display functions table. */ |
e48570bb | 596 | fprintf (file, |
854399ea PM |
597 | _("\nThe Function Table (interpreted %s section contents)\n"), |
598 | pdata_section->name); | |
e48570bb DK |
599 | |
600 | fprintf (file, _("vma:\t\t\tBeginAddress\t EndAddress\t UnwindData\n")); | |
601 | ||
48d5accb TG |
602 | if (!bfd_malloc_and_get_section (abfd, pdata_section, &pdata)) |
603 | goto done; | |
e48570bb | 604 | |
48d5accb | 605 | /* Table of xdata entries. */ |
1360ae66 KT |
606 | xdata_arr = (bfd_vma *) xmalloc (sizeof (bfd_vma) * ((stop / onaline) + 1)); |
607 | xdata_arr_cnt = 0; | |
48d5accb | 608 | |
854399ea PM |
609 | if (strcmp (abfd->xvec->name, "pei-x86-64") == 0) |
610 | imagebase = pe_data (abfd)->pe_opthdr.ImageBase; | |
611 | else | |
612 | imagebase = 0; | |
48d5accb | 613 | |
2eb03909 | 614 | for (i = 0; i < stop; i += onaline) |
e48570bb DK |
615 | { |
616 | struct pex64_runtime_function rf; | |
617 | ||
618 | if (i + PDATA_ROW_SIZE > stop) | |
619 | break; | |
6937bb54 | 620 | |
48d5accb | 621 | pex64_get_runtime_function (abfd, &rf, &pdata[i]); |
e48570bb DK |
622 | |
623 | if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0 | |
624 | && rf.rva_UnwindData == 0) | |
625 | /* We are probably into the padding of the section now. */ | |
626 | break; | |
f493c217 AM |
627 | fprintf (file, " %016" PRIx64, i + pdata_section->vma); |
628 | fprintf (file, ":\t%016" PRIx64, imagebase + rf.rva_BeginAddress); | |
629 | fprintf (file, " %016" PRIx64, imagebase + rf.rva_EndAddress); | |
630 | fprintf (file, " %016" PRIx64 "\n", imagebase + rf.rva_UnwindData); | |
2eb03909 KT |
631 | if (i != 0 && rf.rva_BeginAddress <= prev_beginaddress) |
632 | { | |
633 | seen_error = 1; | |
634 | fprintf (file, " has %s begin address as predecessor\n", | |
635 | (rf.rva_BeginAddress < prev_beginaddress ? "smaller" : "same")); | |
07d6d2b8 | 636 | } |
2eb03909 KT |
637 | prev_beginaddress = rf.rva_BeginAddress; |
638 | /* Now we check for negative addresses. */ | |
639 | if ((prev_beginaddress & 0x80000000) != 0) | |
640 | { | |
641 | seen_error = 1; | |
642 | fprintf (file, " has negative begin address\n"); | |
643 | } | |
644 | if ((rf.rva_EndAddress & 0x80000000) != 0) | |
645 | { | |
646 | seen_error = 1; | |
647 | fprintf (file, " has negative end address\n"); | |
648 | } | |
649 | if ((rf.rva_UnwindData & 0x80000000) != 0) | |
650 | { | |
651 | seen_error = 1; | |
652 | fprintf (file, " has negative unwind address\n"); | |
653 | } | |
854399ea PM |
654 | else if ((rf.rva_UnwindData && !PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf)) |
655 | || virt_size_is_zero) | |
656 | xdata_arr[xdata_arr_cnt++] = rf.rva_UnwindData; | |
2eb03909 KT |
657 | } |
658 | ||
659 | if (seen_error) | |
48d5accb | 660 | goto done; |
1360ae66 KT |
661 | |
662 | /* Add end of list marker. */ | |
663 | xdata_arr[xdata_arr_cnt++] = ~((bfd_vma) 0); | |
664 | ||
665 | /* Sort start RVAs of xdata. */ | |
666 | if (xdata_arr_cnt > 1) | |
667 | qsort (xdata_arr, (size_t) xdata_arr_cnt, sizeof (bfd_vma), | |
668 | sort_xdata_arr); | |
669 | ||
48d5accb TG |
670 | /* Find the section containing the unwind data (.xdata). */ |
671 | xdata_base = xdata_arr[0]; | |
854399ea PM |
672 | /* For sections with long names, first look for the same |
673 | section name, replacing .pdata by .xdata prefix. */ | |
674 | if (strcmp (pdata_section->name, ".pdata") != 0) | |
675 | { | |
de0d7895 | 676 | size_t len = strlen (pdata_section->name); |
e1fa0163 | 677 | char *xdata_name = xmalloc (len + 1); |
854399ea | 678 | |
de0d7895 | 679 | xdata_name = memcpy (xdata_name, pdata_section->name, len + 1); |
854399ea | 680 | /* Transform .pdata prefix into .xdata prefix. */ |
de0d7895 | 681 | if (len > 1) |
854399ea PM |
682 | xdata_name [1] = 'x'; |
683 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, | |
684 | xdata_name); | |
e1fa0163 | 685 | free (xdata_name); |
854399ea PM |
686 | } |
687 | /* Second, try the .xdata section itself. */ | |
48d5accb TG |
688 | if (!xdata_section) |
689 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".xdata"); | |
854399ea PM |
690 | /* Otherwise, if xdata_base is non zero, search also inside |
691 | other standard sections. */ | |
692 | if (!xdata_section && xdata_base) | |
693 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".rdata"); | |
694 | if (!xdata_section && xdata_base) | |
695 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".data"); | |
696 | if (!xdata_section && xdata_base) | |
48d5accb | 697 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".pdata"); |
854399ea | 698 | if (!xdata_section && xdata_base) |
48d5accb | 699 | xdata_section = pex64_get_section_by_rva (abfd, xdata_base, ".text"); |
854399ea | 700 | /* Transfer xdata section into xdata array. */ |
48d5accb TG |
701 | if (!xdata_section |
702 | || !bfd_malloc_and_get_section (abfd, xdata_section, &xdata)) | |
703 | goto done; | |
2eb03909 | 704 | |
854399ea PM |
705 | /* Avoid "also used "... ouput for single unwind info |
706 | in object file. */ | |
707 | prev_unwinddata_rva = (bfd_vma) -1; | |
708 | ||
48d5accb | 709 | /* Do dump of pdata related xdata. */ |
2eb03909 KT |
710 | for (i = 0; i < stop; i += onaline) |
711 | { | |
712 | struct pex64_runtime_function rf; | |
713 | ||
714 | if (i + PDATA_ROW_SIZE > stop) | |
715 | break; | |
0a9d414a | 716 | |
48d5accb | 717 | pex64_get_runtime_function (abfd, &rf, &pdata[i]); |
2eb03909 KT |
718 | |
719 | if (rf.rva_BeginAddress == 0 && rf.rva_EndAddress == 0 | |
720 | && rf.rva_UnwindData == 0) | |
721 | /* We are probably into the padding of the section now. */ | |
722 | break; | |
723 | if (i == 0) | |
07d6d2b8 | 724 | fprintf (file, _("\nDump of %s\n"), xdata_section->name); |
48d5accb | 725 | |
f493c217 | 726 | fprintf (file, " %016" PRIx64, rf.rva_UnwindData + imagebase); |
48d5accb TG |
727 | |
728 | if (prev_unwinddata_rva == rf.rva_UnwindData) | |
729 | { | |
730 | /* Do not dump again the xdata for the same entry. */ | |
f493c217 AM |
731 | fprintf (file, " also used for function at %016" PRIx64 "\n", |
732 | rf.rva_BeginAddress + imagebase); | |
48d5accb TG |
733 | continue; |
734 | } | |
735 | else | |
736 | prev_unwinddata_rva = rf.rva_UnwindData; | |
2eb03909 | 737 | |
f493c217 AM |
738 | fprintf (file, " (rva: %08x): %016" PRIx64 " - %016" PRIx64 "\n", |
739 | (unsigned int) rf.rva_UnwindData, | |
740 | rf.rva_BeginAddress + imagebase, | |
741 | rf.rva_EndAddress + imagebase); | |
e48570bb | 742 | |
854399ea | 743 | if (rf.rva_UnwindData != 0 || virt_size_is_zero) |
e48570bb | 744 | { |
48d5accb | 745 | if (PEX64_IS_RUNTIME_FUNCTION_CHAINED (&rf)) |
e48570bb | 746 | { |
48d5accb | 747 | bfd_vma altent = PEX64_GET_UNWINDDATA_UNIFIED_RVA (&rf); |
fd361982 | 748 | bfd_vma pdata_vma = bfd_section_vma (pdata_section); |
48d5accb TG |
749 | struct pex64_runtime_function arf; |
750 | ||
751 | fprintf (file, "\t shares information with "); | |
752 | altent += imagebase; | |
753 | ||
754 | if (altent >= pdata_vma | |
179f2db0 | 755 | && altent - pdata_vma + PDATA_ROW_SIZE <= stop) |
48d5accb TG |
756 | { |
757 | pex64_get_runtime_function | |
758 | (abfd, &arf, &pdata[altent - pdata_vma]); | |
f493c217 AM |
759 | fprintf (file, "pdata element at 0x%016" PRIx64, |
760 | arf.rva_UnwindData); | |
48d5accb TG |
761 | } |
762 | else | |
763 | fprintf (file, "unknown pdata element"); | |
e48570bb DK |
764 | fprintf (file, ".\n"); |
765 | } | |
766 | else | |
1360ae66 KT |
767 | { |
768 | bfd_vma *p; | |
769 | ||
770 | /* Search for the current entry in the sorted array. */ | |
771 | p = (bfd_vma *) | |
07d6d2b8 | 772 | bsearch (&rf.rva_UnwindData, xdata_arr, |
1360ae66 KT |
773 | (size_t) xdata_arr_cnt, sizeof (bfd_vma), |
774 | sort_xdata_arr); | |
775 | ||
776 | /* Advance to the next pointer into the xdata section. We may | |
777 | have shared xdata entries, which will result in a string of | |
778 | identical pointers in the array; advance past all of them. */ | |
779 | while (p[0] <= rf.rva_UnwindData) | |
780 | ++p; | |
0a9d414a | 781 | |
1360ae66 KT |
782 | if (p[0] == ~((bfd_vma) 0)) |
783 | p = NULL; | |
784 | ||
2b597f54 | 785 | pex64_dump_xdata (file, abfd, xdata_section, xdata, p, &rf); |
1360ae66 | 786 | } |
e48570bb DK |
787 | } |
788 | } | |
789 | ||
48d5accb TG |
790 | done: |
791 | free (pdata); | |
1360ae66 | 792 | free (xdata_arr); |
48d5accb | 793 | free (xdata); |
e48570bb | 794 | |
0a1b45a2 | 795 | return true; |
e48570bb DK |
796 | } |
797 | ||
cf7a3c01 AM |
798 | struct pex64_paps |
799 | { | |
800 | void *obj; | |
801 | /* Number of found pdata sections. */ | |
802 | unsigned int pdata_count; | |
803 | }; | |
854399ea PM |
804 | |
805 | /* Functionn prototype. */ | |
0a1b45a2 | 806 | bool pex64_bfd_print_pdata (bfd *, void *); |
854399ea PM |
807 | |
808 | /* Helper function for bfd_map_over_section. */ | |
809 | static void | |
cf7a3c01 | 810 | pex64_print_all_pdata_sections (bfd *abfd, asection *pdata, void *arg) |
854399ea | 811 | { |
cf7a3c01 | 812 | struct pex64_paps *paps = arg; |
08dedd66 | 813 | if (startswith (pdata->name, ".pdata")) |
854399ea | 814 | { |
cf7a3c01 AM |
815 | if (pex64_bfd_print_pdata_section (abfd, paps->obj, pdata)) |
816 | paps->pdata_count++; | |
854399ea PM |
817 | } |
818 | } | |
819 | ||
0a1b45a2 | 820 | bool |
854399ea PM |
821 | pex64_bfd_print_pdata (bfd *abfd, void *vfile) |
822 | { | |
823 | asection *pdata_section = bfd_get_section_by_name (abfd, ".pdata"); | |
cf7a3c01 | 824 | struct pex64_paps paps; |
854399ea PM |
825 | |
826 | if (pdata_section) | |
827 | return pex64_bfd_print_pdata_section (abfd, vfile, pdata_section); | |
828 | ||
cf7a3c01 AM |
829 | paps.obj = vfile; |
830 | paps.pdata_count = 0; | |
831 | bfd_map_over_sections (abfd, pex64_print_all_pdata_sections, &paps); | |
832 | return paps.pdata_count != 0; | |
854399ea PM |
833 | } |
834 | ||
e48570bb | 835 | #define bfd_pe_print_pdata pex64_bfd_print_pdata |
854399ea | 836 | #define bfd_coff_std_swap_table bfd_coff_pei_swap_table |
e48570bb | 837 | |
99ad8390 | 838 | #include "coff-x86_64.c" |