Line data Source code
1 : /*
2 : * Copyright (c) 2015 Cisco and/or its affiliates.
3 : * Licensed under the Apache License, Version 2.0 (the "License");
4 : * you may not use this file except in compliance with the License.
5 : * You may obtain a copy of the License at:
6 : *
7 : * http://www.apache.org/licenses/LICENSE-2.0
8 : *
9 : * Unless required by applicable law or agreed to in writing, software
10 : * distributed under the License is distributed on an "AS IS" BASIS,
11 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 : * See the License for the specific language governing permissions and
13 : * limitations under the License.
14 : */
15 : /*
16 : Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
17 :
18 : Permission is hereby granted, free of charge, to any person obtaining
19 : a copy of this software and associated documentation files (the
20 : "Software"), to deal in the Software without restriction, including
21 : without limitation the rights to use, copy, modify, merge, publish,
22 : distribute, sublicense, and/or sell copies of the Software, and to
23 : permit persons to whom the Software is furnished to do so, subject to
24 : the following conditions:
25 :
26 : The above copyright notice and this permission notice shall be
27 : included in all copies or substantial portions of the Software.
28 :
29 : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 : EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 : MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 : NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33 : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34 : OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35 : WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 : */
37 :
38 : #ifndef included_clib_elf_h
39 : #define included_clib_elf_h
40 :
41 : #include <vppinfra/format.h>
42 : #include <vppinfra/hash.h>
43 : #include <vppinfra/vec.h>
44 : #include <vppinfra/byte_order.h>
45 :
46 : #define foreach_elf_file_class \
47 : _ (CLASS_NONE) _ (32BIT) _ (64BIT)
48 :
49 : #define foreach_elf_data_encoding \
50 : _ (ENCODING_NONE) \
51 : _ (TWOS_COMPLEMENT_LITTLE_ENDIAN) \
52 : _ (TWOS_COMPLEMENT_BIG_ENDIAN)
53 :
54 : #define ELF_VERSION_NONE (0)
55 : #define ELF_VERSION_CURRENT (1)
56 :
57 : #define foreach_elf_abi \
58 : _ (SYSV, 0) \
59 : _ (HPUX, 1) \
60 : _ (NETBSD, 2) \
61 : _ (LINUX, 3) \
62 : _ (SOLARIS, 6) \
63 : _ (AIX, 7) \
64 : _ (IRIX, 8) \
65 : _ (FREEBSD, 9) \
66 : _ (COMPAQ_TRU64, 10) \
67 : _ (MODESTO, 11) \
68 : _ (OPENBSD, 12) \
69 : _ (ARM, 97) \
70 : _ (STANDALONE, 255)
71 :
72 : /* Legal values for type (object file type). */
73 : #define foreach_elf_file_type \
74 : _ (NONE, 0) \
75 : _ (RELOC, 1) \
76 : _ (EXEC, 2) \
77 : _ (SHARED, 3) \
78 : _ (CORE, 4) \
79 : _ (OS_SPECIFIC_LO, 0xfe00) \
80 : _ (OS_SPECIFIC_HI, 0xfeff) \
81 : _ (ARCH_SPECIFIC_LO, 0xff00) \
82 : _ (ARCH_SPECIFIC_HI, 0xffff)
83 :
84 : /* Legal values for architecture. */
85 : #define foreach_elf_architecture \
86 : _ (NONE, 0) /* No machine */ \
87 : _ (M32, 1) /* AT&T WE 32100 */ \
88 : _ (SPARC, 2) /* SUN SPARC */ \
89 : _ (386, 3) /* Intel 80386 */ \
90 : _ (68K, 4) /* Motorola m68k family */ \
91 : _ (88K, 5) /* Motorola m88k family */ \
92 : _ (860, 7) /* Intel 80860 */ \
93 : _ (MIPS, 8) /* MIPS R3000 big-endian */ \
94 : _ (S370, 9) /* IBM System/370 */ \
95 : _ (MIPS_RS3_LE, 10) /* MIPS R3000 little-endian */ \
96 : _ (PARISC, 15) /* HPPA */ \
97 : _ (VPP500, 17) /* Fujitsu VPP500 */ \
98 : _ (SPARC32PLUS, 18) /* Sun's "v8plus" */ \
99 : _ (960, 19) /* Intel 80960 */ \
100 : _ (PPC, 20) /* PowerPC */ \
101 : _ (PPC64, 21) /* PowerPC 64-bit */ \
102 : _ (S390, 22) /* IBM S390 */ \
103 : _ (V800, 36) /* NEC V800 series */ \
104 : _ (FR20, 37) /* Fujitsu FR20 */ \
105 : _ (RH32, 38) /* TRW RH-32 */ \
106 : _ (RCE, 39) /* Motorola RCE */ \
107 : _ (ARM, 40) /* ARM */ \
108 : _ (FAKE_ALPHA, 41) /* Digital Alpha */ \
109 : _ (SH, 42) /* Hitachi SH */ \
110 : _ (SPARCV9, 43) /* SPARC v9 64-bit */ \
111 : _ (TRICORE, 44) /* Siemens Tricore */ \
112 : _ (ARC, 45) /* Argonaut RISC Core */ \
113 : _ (H8_300, 46) /* Hitachi H8/300 */ \
114 : _ (H8_300H, 47) /* Hitachi H8/300H */ \
115 : _ (H8S, 48) /* Hitachi H8S */ \
116 : _ (H8_500, 49) /* Hitachi H8/500 */ \
117 : _ (IA_64, 50) /* Intel Merced */ \
118 : _ (MIPS_X, 51) /* Stanford MIPS-X */ \
119 : _ (COLDFIRE, 52) /* Motorola Coldfire */ \
120 : _ (68HC12, 53) /* Motorola M68HC12 */ \
121 : _ (MMA, 54) /* Fujitsu MMA Multimedia Accel. */ \
122 : _ (PCP, 55) /* Siemens PCP */ \
123 : _ (NCPU, 56) /* Sony nCPU embedded RISC */ \
124 : _ (NDR1, 57) /* Denso NDR1 microprocessor */ \
125 : _ (STARCORE, 58) /* Motorola Start*Core processor */ \
126 : _ (ME16, 59) /* Toyota ME16 processor */ \
127 : _ (ST100, 60) /* STMicroelectronic ST100 */ \
128 : _ (TINYJ, 61) /* Advanced Logic Corp. Tinyj */ \
129 : _ (X86_64, 62) /* AMD x86-64 architecture */ \
130 : _ (PDSP, 63) /* Sony DSP Processor */ \
131 : _ (FX66, 66) /* Siemens FX66 microcontroller */ \
132 : _ (ST9PLUS, 67) /* STMicroelectronics ST9+ 8/16 mc */ \
133 : _ (ST7, 68) /* STmicroelectronics ST7 8 bit mc */ \
134 : _ (68HC16, 69) /* Motorola MC68HC16 */ \
135 : _ (68HC11, 70) /* Motorola MC68HC11 */ \
136 : _ (68HC08, 71) /* Motorola MC68HC08 */ \
137 : _ (68HC05, 72) /* Motorola MC68HC05 */ \
138 : _ (SVX, 73) /* Silicon Graphics SVx */ \
139 : _ (ST19, 74) /* STMicroelectronics ST19 8 bit mc */ \
140 : _ (VAX, 75) /* Digital VAX */ \
141 : _ (CRIS, 76) /* Axis 32-bit embedded proc. */ \
142 : _ (JAVELIN, 77) /* Infineon 32-bit embedded proc. */ \
143 : _ (FIREPATH, 78) /* Element 14 64-bit DSP Processor */ \
144 : _ (ZSP, 79) /* LSI Logic 16-bit DSP Processor */ \
145 : _ (MMIX, 80) /* Knuth's 64-bit processor */ \
146 : _ (HUANY, 81) /* Harvard machine-independent */ \
147 : _ (PRISM, 82) /* SiTera Prism */ \
148 : _ (AVR, 83) /* Atmel AVR 8-bit microcontroller */ \
149 : _ (FR30, 84) /* Fujitsu FR30 */ \
150 : _ (D10V, 85) /* Mitsubishi D10V */ \
151 : _ (D30V, 86) /* Mitsubishi D30V */ \
152 : _ (V850, 87) /* NEC v850 */ \
153 : _ (M32R, 88) /* Mitsubishi M32R */ \
154 : _ (MN10300, 89) /* Matsushita MN10300 */ \
155 : _ (MN10200, 90) /* Matsushita MN10200 */ \
156 : _ (PJ, 91) /* picoJava */ \
157 : _ (OPENRISC, 92) /* OpenRISC 32-bit processor */ \
158 : _ (ARC_A5, 93) /* ARC Cores Tangent-A5 */ \
159 : _ (XTENSA, 94) /* Tensilica Xtensa Architecture */ \
160 : _ (ALPHA, 0x9026)
161 :
162 : #define _(f) ELF_##f,
163 :
164 : typedef enum
165 : {
166 : foreach_elf_file_class ELF_N_FILE_CLASS,
167 : } elf_file_class_t;
168 :
169 : typedef enum
170 : {
171 : foreach_elf_data_encoding ELF_N_DATA_ENCODING,
172 : } elf_data_encoding_t;
173 :
174 : #undef _
175 :
176 : #define _(f,i) ELF_##f = i,
177 :
178 : typedef enum
179 : {
180 : foreach_elf_abi
181 : } elf_abi_t;
182 :
183 : typedef enum
184 : {
185 : foreach_elf_file_type
186 : } elf_file_type_t;
187 :
188 : #undef _
189 :
190 : typedef enum
191 : {
192 : #define _(f,i) ELF_ARCH_##f = i,
193 : foreach_elf_architecture
194 : #undef _
195 : } elf_architecture_t;
196 :
197 : typedef struct
198 : {
199 : /* 0x7f ELF */
200 : u8 magic[4];
201 :
202 : elf_file_class_t file_class:8;
203 : elf_data_encoding_t data_encoding:8;
204 : u8 file_version_ident;
205 : elf_abi_t abi:8;
206 : u8 abi_version;
207 :
208 : u8 pad[7];
209 :
210 : elf_file_type_t file_type:16;
211 : elf_architecture_t architecture:16;
212 :
213 : u32 file_version;
214 : } elf_first_header_t;
215 :
216 : /* 32/64 bit file header following basic file header. */
217 : #define foreach_elf32_file_header \
218 : _ (u32, entry_point) \
219 : _ (u32, segment_header_file_offset) \
220 : _ (u32, section_header_file_offset) \
221 : _ (u32, flags) \
222 : _ (u16, n_bytes_this_header) \
223 : _ (u16, segment_header_size) \
224 : _ (u16, segment_header_count) \
225 : _ (u16, section_header_size) \
226 : _ (u16, section_header_count) \
227 : _ (u16, section_header_string_table_index)
228 :
229 : #define foreach_elf64_file_header \
230 : _ (u64, entry_point) \
231 : _ (u64, segment_header_file_offset) \
232 : _ (u64, section_header_file_offset) \
233 : _ (u32, flags) \
234 : _ (u16, n_bytes_this_header) \
235 : _ (u16, segment_header_size) \
236 : _ (u16, segment_header_count) \
237 : _ (u16, section_header_size) \
238 : _ (u16, section_header_count) \
239 : _ (u16, section_header_string_table_index)
240 :
241 : /* Section header. */
242 : #define foreach_elf32_section_header \
243 : _ (u32, name) \
244 : _ (u32, type) \
245 : _ (u32, flags) \
246 : _ (u32, exec_address) \
247 : _ (u32, file_offset) \
248 : _ (u32, file_size) \
249 : _ (u32, link) \
250 : _ (u32, additional_info) \
251 : _ (u32, align) \
252 : _ (u32, entry_size)
253 :
254 : #define foreach_elf64_section_header \
255 : _ (u32, name) \
256 : _ (u32, type) \
257 : _ (u64, flags) \
258 : _ (u64, exec_address) \
259 : _ (u64, file_offset) \
260 : _ (u64, file_size) \
261 : _ (u32, link) \
262 : _ (u32, additional_info) \
263 : _ (u64, align) \
264 : _ (u64, entry_size)
265 :
266 : /* Program segment header. */
267 : #define foreach_elf32_segment_header \
268 : _ (u32, type) \
269 : _ (u32, file_offset) \
270 : _ (u32, virtual_address) \
271 : _ (u32, physical_address) \
272 : _ (u32, file_size) \
273 : _ (u32, memory_size) \
274 : _ (u32, flags) \
275 : _ (u32, align)
276 :
277 : #define foreach_elf64_segment_header \
278 : _ (u32, type) \
279 : _ (u32, flags) \
280 : _ (u64, file_offset) \
281 : _ (u64, virtual_address) \
282 : _ (u64, physical_address) \
283 : _ (u64, file_size) \
284 : _ (u64, memory_size) \
285 : _ (u64, align)
286 :
287 : /* Symbol table. */
288 : #define foreach_elf32_symbol_header \
289 : _ (u32, name) \
290 : _ (u32, value) \
291 : _ (u32, size) \
292 : /* binding upper 4 bits; type lower 4 bits */ \
293 : _ (u8, binding_and_type) \
294 : _ (u8, visibility) \
295 : _ (u16, section_index)
296 :
297 : #define foreach_elf64_symbol_header \
298 : _ (u32, name) \
299 : _ (u8, binding_and_type) \
300 : _ (u8, visibility) \
301 : _ (u16, section_index) \
302 : _ (u64, value) \
303 : _ (u64, size)
304 :
305 : #define _(t,f) t f;
306 :
307 : typedef struct
308 : {
309 : foreach_elf32_file_header} elf32_file_header_t;
310 :
311 : typedef struct
312 : {
313 : foreach_elf64_file_header} elf64_file_header_t;
314 :
315 : typedef struct
316 : {
317 : foreach_elf32_section_header} elf32_section_header_t;
318 :
319 : typedef struct
320 : {
321 : foreach_elf64_section_header} elf64_section_header_t;
322 :
323 : typedef struct
324 : {
325 : foreach_elf32_segment_header} elf32_segment_header_t;
326 :
327 : typedef struct
328 : {
329 : foreach_elf64_segment_header} elf64_segment_header_t;
330 :
331 : typedef struct
332 : {
333 : foreach_elf32_symbol_header} elf32_symbol_t;
334 :
335 : typedef struct
336 : {
337 : foreach_elf64_symbol_header} elf64_symbol_t;
338 : #undef _
339 :
340 : /* Special section names. */
341 : #define foreach_elf_symbol_reserved_section_index \
342 : _ (ABSOLUTE, 0xfff1) /* Associated symbol is absolute */ \
343 : _ (COMMON, 0xfff2) /* Associated symbol is common */ \
344 : _ (XINDEX, 0xffff) /* Index is in extra table. */
345 :
346 : #define ELF_SYMBOL_SECTION_RESERVED_LO 0xff00
347 : #define ELF_SYMBOL_SECTION_RESERVED_HI 0xffff
348 : #define ELF_SYMBOL_SECTION_ARCH_SPECIFIC_LO 0xff00
349 : #define ELF_SYMBOL_SECTION_ARCH_SPECIFIC_HI 0xff1f
350 : #define ELF_SYMBOL_SECTION_OS_SPECIFIC_LO 0xff20
351 : #define ELF_SYMBOL_SECTION_OS_SPECIFIC_HI 0xff3f
352 :
353 : /* Section types. */
354 : #define foreach_elf_section_type \
355 : _ (UNUSED, 0) \
356 : _ (PROGRAM_DATA, 1) \
357 : _ (SYMBOL_TABLE, 2) \
358 : _ (STRING_TABLE, 3) \
359 : _ (RELOCATION_ADD, 4) \
360 : _ (SYMBOL_TABLE_HASH, 5) \
361 : _ (DYNAMIC, 6) /* Dynamic linking information */ \
362 : _ (NOTE, 7) /* Notes */ \
363 : _ (NO_BITS, 8) /* Program space with no data (bss) */ \
364 : _ (RELOCATION, 9) /* Relocation entries, no addends */ \
365 : _ (DYNAMIC_SYMBOL_TABLE, 11) /* Dynamic linker symbol table */ \
366 : _ (INIT_ARRAY, 14) /* Array of constructors */ \
367 : _ (FINI_ARRAY, 15) /* Array of destructors */ \
368 : _ (PREINIT_ARRAY, 16) /* Array of pre-constructors */ \
369 : _ (GROUP, 17) /* Section group */ \
370 : _ (SYMTAB_SHNDX, 18) /* Extended section indices */ \
371 : _ (OS_SPECIFIC_LO, 0x60000000) /* Start OS-specific */ \
372 : _ (GNU_LIBLIST, 0x6ffffff7) /* Prelink library list */ \
373 : _ (CHECKSUM, 0x6ffffff8) /* Checksum for DSO content. */ \
374 : _ (SUNW_MOVE, 0x6ffffffa) \
375 : _ (SUNW_COMDAT, 0x6ffffffb) \
376 : _ (SUNW_SYMINFO, 0x6ffffffc) \
377 : _ (GNU_VERDEF, 0x6ffffffd) /* Version definition section. */ \
378 : _ (GNU_VERNEED, 0x6ffffffe) /* Version needs section. */ \
379 : _ (GNU_VERSYM, 0x6fffffff) /* Version symbol table. */ \
380 : _ (ARCH_SPECIFIC_LO, 0x70000000) /* Start of processor-specific */ \
381 : _ (ARCH_SPECIFIC_HI, 0x7fffffff) /* End of processor-specific */ \
382 : _ (APP_SPECIFIC_LO, 0x80000000) /* Start of application-specific */ \
383 : _ (APP_SPECIFIC_HI, 0x8fffffff) /* End of application-specific */
384 :
385 : /* Section flags. */
386 : #define foreach_elf_section_flag \
387 : _ (WRITE, 0) \
388 : _ (ALLOC, 1) \
389 : _ (EXEC, 2) \
390 : _ (MERGE, 3) \
391 : _ (STRING_TABLE, 5) \
392 : _ (INFO_LINK, 6) \
393 : _ (PRESERVE_LINK_ORDER, 7) \
394 : _ (OS_NON_CONFORMING, 8) \
395 : _ (GROUP, 9) \
396 : _ (TLS, 10) \
397 : _ (OS_SPECIFIC_LO, 20) \
398 : _ (OS_SPECIFIC_HI, 27) \
399 : _ (ARCH_SPECIFIC_LO, 28) \
400 : _ (ARCH_SPECIFIC_HI, 31)
401 :
402 : typedef enum
403 : {
404 : #define _(f,i) ELF_SECTION_##f = i,
405 : foreach_elf_section_type
406 : #undef _
407 : ELF_SECTION_OS_SPECIFIC_HI = 0x6fffffff,
408 : } elf_section_type_t;
409 :
410 : typedef enum
411 : {
412 : #define _(f,i) ELF_SECTION_FLAG_BIT_##f = i,
413 : foreach_elf_section_flag
414 : #undef _
415 : } elf_section_flag_bit_t;
416 :
417 : typedef enum
418 : {
419 : #define _(f,i) ELF_SECTION_FLAG_##f = 1 << ELF_SECTION_FLAG_BIT_##f,
420 : foreach_elf_section_flag
421 : #undef _
422 : } elf_section_flag_t;
423 :
424 : /* Symbol bindings (upper 4 bits of binding_and_type). */
425 : #define foreach_elf_symbol_binding \
426 : _ (LOCAL, 0) /* Local symbol */ \
427 : _ (GLOBAL, 1) /* Global symbol */ \
428 : _ (WEAK, 2) /* Weak symbol */ \
429 : _ (OS_SPECIFIC_LO, 10) /* Start of OS-specific */ \
430 : _ (OS_SPECIFIC_HI, 12) /* End of OS-specific */ \
431 : _ (ARCH_SPECIFIC_LO, 13) /* Start of processor-specific */ \
432 : _ (ARCH_SPECIFIC_HI, 15) /* End of processor-specific */
433 :
434 : /* Symbol types (lower 4 bits of binding_and_type). */
435 : #define foreach_elf_symbol_type \
436 : _ (NONE, 0) \
437 : _ (DATA, 1) /* Symbol is a data object */ \
438 : _ (CODE, 2) /* Symbol is a code object */ \
439 : _ (SECTION, 3) /* Symbol associated with a section */ \
440 : _ (FILE, 4) /* Symbol's name is file name */ \
441 : _ (COMMON, 5) /* Symbol is a common data object */ \
442 : _ (TLS, 6) /* Symbol is thread-local data */ \
443 : _ (OS_SPECIFIC_LO, 10) /* Start of OS-specific */ \
444 : _ (OS_SPECIFIC_HI, 12) /* End of OS-specific */ \
445 : _ (ARCH_SPECIFIC_LO, 13) /* Start of processor-specific */ \
446 : _ (ARCH_SPECIFIC_HI, 15) /* End of processor-specific */
447 :
448 : /* Symbol visibility. */
449 : #define foreach_elf_symbol_visibility \
450 : _ (DEFAULT, 0) /* Default symbol visibility rules */ \
451 : _ (INTERNAL, 1) /* Processor specific hidden class */ \
452 : _ (HIDDEN, 2) /* Unavailable in other modules */ \
453 : _ (PROTECTED, 3) /* Not preemptible, not exported */
454 :
455 : /* The syminfo section if available contains additional
456 : information about every dynamic symbol. */
457 : typedef struct
458 : {
459 : u16 bound_to;
460 : u16 flags;
461 : } elf_symbol_info_t;
462 :
463 : /* Possible values for bound_to. */
464 : #define foreach_elf_symbol_info_bound_to \
465 : _ (SELF, 0xffff) /* Symbol bound to self */ \
466 : _ (PARENT, 0xfffe) /* Symbol bound to parent */ \
467 : _ (RESERVED_LO, 0xff00) \
468 : _ (RESERVED_HI, 0xffff)
469 :
470 : /* Symbol info flags. */
471 : #define foreach_elf_symbol_info_flags \
472 : _ (DIRECT) /* Direct bound symbol */ \
473 : _ (PASS_THRU) /* Pass-thru symbol for translator */ \
474 : _ (COPY) /* Symbol is a copy-reloc */ \
475 : _ (LAZY_LOAD) /* Symbol bound to object to be lazy loaded */
476 :
477 : /* Relocation table entry with/without addend. */
478 : typedef struct
479 : {
480 : u32 address;
481 : u32 symbol_and_type; /* high 24 symbol, low 8 type. */
482 : i32 addend[0];
483 : } elf32_relocation_t;
484 :
485 : typedef struct
486 : {
487 : u64 address;
488 : u64 symbol_and_type; /* high 32 symbol, low 32 type. */
489 : i64 addend[0];
490 : } elf64_relocation_t;
491 :
492 : typedef struct
493 : {
494 : u64 address;
495 : u64 symbol_and_type;
496 : u64 addend;
497 : } elf_relocation_with_addend_t;
498 :
499 : #define elf_relocation_next(r,type) \
500 : ((void *) ((r) + 1) \
501 : + ((type) == ELF_SECTION_RELOCATION_ADD ? sizeof ((r)->addend[0]) : 0))
502 :
503 : /* Segment type. */
504 : #define foreach_elf_segment_type \
505 : _ (UNUSED, 0) \
506 : _ (LOAD, 1) /* Loadable program segment */ \
507 : _ (DYNAMIC, 2) /* Dynamic linking information */ \
508 : _ (INTERP, 3) /* Program interpreter */ \
509 : _ (NOTE, 4) /* Auxiliary information */ \
510 : _ (SEGMENT_TABLE, 6) /* Entry for header table itself */ \
511 : _ (TLS, 7) /* Thread-local storage segment */ \
512 : _ (OS_SPECIFIC_LO, 0x60000000) /* Start of OS-specific */ \
513 : _ (GNU_EH_FRAME, 0x6474e550) /* GCC .eh_frame_hdr segment */ \
514 : _ (GNU_STACK, 0x6474e551) /* Indicates stack executability */ \
515 : _ (GNU_RELRO, 0x6474e552) /* Read-only after relocation */ \
516 : _ (SUNW_BSS, 0x6ffffffa) /* Sun specific BSS */ \
517 : _ (SUNW_STACK, 0x6ffffffb) /* Sun specific stack */ \
518 : _ (OS_SPECIFIC_HI, 0x6fffffff) /* End of OS-specific */ \
519 : _ (ARCH_SPECIFIC_LO, 0x70000000) /* Start of processor-specific */ \
520 : _ (ARCH_SPECIFIC_HI, 0x7fffffff) /* End of processor-specific */
521 :
522 : /* Segment flags. */
523 : #define foreach_elf_segment_flag \
524 : _ (EXEC, 0) \
525 : _ (WRITE, 1) \
526 : _ (READ, 2) \
527 : _ (OS_SPECIFIC_LO, 20) \
528 : _ (OS_SPECIFIC_HI, 27) \
529 : _ (ARCH_SPECIFIC_LO, 28) \
530 : _ (ARCH_SPECIFIC_HI, 31)
531 :
532 : typedef enum
533 : {
534 : #define _(f,i) ELF_SEGMENT_##f = i,
535 : foreach_elf_segment_type
536 : #undef _
537 : } elf_segment_type_t;
538 :
539 : typedef enum
540 : {
541 : #define _(f,i) ELF_SEGMENT_FLAG_BIT_##f = i,
542 : foreach_elf_segment_flag
543 : #undef _
544 : } elf_segment_flag_bit_t;
545 :
546 : typedef enum
547 : {
548 : #define _(f,i) ELF_SEGMENT_FLAG_##f = 1 << ELF_SEGMENT_FLAG_BIT_##f,
549 : foreach_elf_segment_flag
550 : #undef _
551 : } elf_segment_flag_t;
552 :
553 : #define foreach_elf32_dynamic_entry_header \
554 : _ (u32, type) \
555 : _ (u32, data)
556 :
557 : #define foreach_elf64_dynamic_entry_header \
558 : _ (u64, type) \
559 : _ (u64, data)
560 :
561 : #define _(t,f) t f;
562 :
563 : typedef struct
564 : {
565 : foreach_elf32_dynamic_entry_header} elf32_dynamic_entry_t;
566 :
567 : typedef struct
568 : {
569 : foreach_elf64_dynamic_entry_header} elf64_dynamic_entry_t;
570 :
571 : #undef _
572 :
573 : #define foreach_elf_dynamic_entry_type \
574 : _ (END, 0) /* Marks end of dynamic section */ \
575 : _ (NEEDED_LIBRARY, 1) /* Name of needed library */ \
576 : _ (PLT_RELOCATION_SIZE, 2) /* Size in bytes of PLT relocs */ \
577 : _ (PLT_GOT, 3) /* Processor defined value */ \
578 : _ (SYMBOL_HASH, 4) /* Address of symbol hash table */ \
579 : _ (STRING_TABLE, 5) /* Address of string table */ \
580 : _ (SYMBOL_TABLE, 6) /* Address of symbol table */ \
581 : _ (RELA_ADDRESS, 7) /* Address of Rela relocs */ \
582 : _ (RELA_SIZE, 8) /* Total size of Rela relocs */ \
583 : _ (RELA_ENTRY_SIZE, 9) /* Size of one Rela reloc */ \
584 : _ (STRING_TABLE_SIZE, 10) /* Size of string table */ \
585 : _ (SYMBOL_TABLE_ENTRY_SIZE, 11) /* Size of one symbol table entry */ \
586 : _ (INIT_FUNCTION, 12) /* Address of init function */ \
587 : _ (FINI_FUNCTION, 13) /* Address of termination function */ \
588 : _ (SONAME, 14) /* Name of shared object */ \
589 : _ (RPATH, 15) /* Library search path (deprecated) */ \
590 : _ (SYMBOLIC, 16) /* Start symbol search here */ \
591 : _ (REL, 17) /* Address of Rel relocs */ \
592 : _ (RELSZ, 18) /* Total size of Rel relocs */ \
593 : _ (RELENT, 19) /* Size of one Rel reloc */ \
594 : _ (PLT_RELOCATION_TYPE, 20) /* Type of reloc in PLT */ \
595 : _ (DEBUG, 21) /* For debugging; unspecified */ \
596 : _ (TEXTREL, 22) /* Reloc might modify .text */ \
597 : _ (PLT_RELOCATION_ADDRESS, 23) /* Address of PLT relocs */ \
598 : _ (BIND_NOW, 24) /* Process relocations of object */ \
599 : _ (INIT_ARRAY, 25) /* Array with addresses of init fct */ \
600 : _ (FINI_ARRAY, 26) /* Array with addresses of fini fct */ \
601 : _ (INIT_ARRAYSZ, 27) /* Size in bytes of DT_INIT_ARRAY */ \
602 : _ (FINI_ARRAYSZ, 28) /* Size in bytes of DT_FINI_ARRAY */ \
603 : _ (RUN_PATH, 29) /* Library search path */ \
604 : _ (FLAGS, 30) /* Flags for object being loaded */ \
605 : _ (ENCODING, 31) /* Start of encoded range */ \
606 : _ (PREINIT_ARRAY, 32) /* Array with addresses of fns */ \
607 : _ (PREINIT_ARRAY_SIZE, 33) /* Size of PREINIT_ARRAY in bytes. */ \
608 : _ (GNU_PRELINKED, 0x6ffffdf5) /* Prelinking timestamp */ \
609 : _ (GNU_CONFLICTSZ, 0x6ffffdf6) /* Size of conflict section */ \
610 : _ (GNU_LIBLISTSZ, 0x6ffffdf7) /* Size of library list */ \
611 : _ (CHECKSUM, 0x6ffffdf8) \
612 : _ (PLTPADSZ, 0x6ffffdf9) \
613 : _ (MOVEENT, 0x6ffffdfa) \
614 : _ (MOVESZ, 0x6ffffdfb) \
615 : _ (FEATURE_1, 0x6ffffdfc) /* Feature selection (DTF_*). */ \
616 : _ (POSFLAG_1, 0x6ffffdfd) /* Flags for following entries. */ \
617 : _ (SYMINSZ, 0x6ffffdfe) /* Size of syminfo table (in bytes) */ \
618 : _ (SYMINENT, 0x6ffffdff) /* Entry size of syminfo */ \
619 : _ (GNU_HASH, 0x6ffffef5) \
620 : _ (GNU_CONFLICT, 0x6ffffef8) /* Start of conflict section */ \
621 : _ (GNU_LIBLIST, 0x6ffffef9) /* Library list */ \
622 : _ (CONFIG, 0x6ffffefa) /* Configuration information. */ \
623 : _ (DEPAUDIT, 0x6ffffefb) /* Dependency auditing. */ \
624 : _ (AUDIT, 0x6ffffefc) /* Object auditing. */ \
625 : _ (PLTPAD, 0x6ffffefd) /* PLT padding. */ \
626 : _ (MOVETAB, 0x6ffffefe) /* Move table. */ \
627 : _ (SYMINFO, 0x6ffffeff) /* Syminfo table. */ \
628 : _ (VERSYM, 0x6ffffff0) \
629 : _ (RELACOUNT, 0x6ffffff9) \
630 : _ (RELCOUNT, 0x6ffffffa) \
631 : _ (FLAGS_1, 0x6ffffffb) /* State flags, see DF_1_* below. */ \
632 : _ (VERSION_DEF, 0x6ffffffc) /* Address of version definition table */ \
633 : _ (VERSION_DEF_COUNT, 0x6ffffffd) /* Number of version definitions */ \
634 : _ (VERSION_NEED, 0x6ffffffe) /* Address of table with needed versions */ \
635 : _ (VERSION_NEED_COUNT, 0x6fffffff) /* Number of needed versions */ \
636 : _ (AUXILIARY, 0x7ffffffd) /* Shared object to load before self */ \
637 : _ (FILTER, 0x7fffffff) /* Shared object to get values from */
638 :
639 : typedef enum
640 : {
641 : #define _(f,n) ELF_DYNAMIC_ENTRY_##f = (n),
642 : foreach_elf_dynamic_entry_type
643 : #undef _
644 : } elf_dynamic_entry_type_t;
645 :
646 : /* Values of `d_un.d_val' in the DT_FLAGS entry. */
647 : #define ELF_DYNAMIC_FLAGS_ORIGIN (1 << 0) /* Object may use DF_ORIGIN */
648 : #define ELF_DYNAMIC_FLAGS_SYMBOLIC (1 << 1) /* Symbol resolutions starts here */
649 : #define ELF_DYNAMIC_FLAGS_TEXT_RELOCATIONS (1 << 2) /* Object contains text relocations */
650 : #define ELF_DYNAMIC_FLAGS_BIND_NOW (1 << 3) /* No lazy binding for this object */
651 : #define ELF_DYNAMIC_FLAGS_STATIC_TLS (1 << 4) /* Module uses the static TLS model */
652 :
653 : /* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
654 : entry in the dynamic section. */
655 : #define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */
656 : #define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */
657 : #define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */
658 : #define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object. */
659 : #define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime. */
660 : #define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object */
661 : #define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */
662 : #define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */
663 : #define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */
664 : #define DF_1_TRANS 0x00000200
665 : #define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */
666 : #define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */
667 : #define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */
668 : #define DF_1_CONFALT 0x00002000 /* Configuration alternative created. */
669 : #define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */
670 : #define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */
671 : #define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */
672 :
673 : /* Flags for the feature selection in DT_FEATURE_1. */
674 : #define DTF_1_PARINIT 0x00000001
675 : #define DTF_1_CONFEXP 0x00000002
676 :
677 : /* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */
678 : #define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */
679 : #define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not
680 : generally available. */
681 :
682 : /* Version definition sections. */
683 : typedef struct
684 : {
685 : u16 version;
686 : u16 flags;
687 : u16 index;
688 : u16 aux_count;
689 : u32 name_hash;
690 : u32 aux_byte_offset;
691 : u32 byte_offset_next_version_definition;
692 : } elf_dynamic_version_definition_t;
693 :
694 : typedef struct
695 : {
696 : u32 name;
697 : u32 next_offset; /* byte offset of ver def aux next entry */
698 : } elf_dynamic_version_definition_aux_t;
699 :
700 : /* Version definition flags. */
701 : #define ELF_DYNAMIC_VERSION_FILE (1 << 0) /* Version definition of file itself */
702 : #define ELF_DYNAMIC_VERSION_WEAK (1 << 1) /* Weak version identifier */
703 :
704 : /* Version symbol index. */
705 : #define ELF_DYNAMIC_VERSYM_LOCAL 0 /* Symbol is local. */
706 : #define ELF_DYNAMIC_VERSYM_GLOBAL 1 /* Symbol is global. */
707 : #define ELF_DYNAMIC_VERSYM_RESERVED_LO 0xff00 /* Beginning of reserved entries. */
708 : #define ELF_DYNAMIC_VERSYM_ELIMINATE 0xff01 /* Symbol is to be eliminated. */
709 :
710 : /* Version dependency section. */
711 : #define foreach_elf_dynamic_version_need_field \
712 : _ (u16, version) \
713 : _ (u16, aux_count) \
714 : _ (u32, file_name_offset) \
715 : _ (u32, first_aux_offset) \
716 : _ (u32, next_offset)
717 :
718 : #define foreach_elf_dynamic_version_need_aux_field \
719 : _ (u32, hash) \
720 : _ (u16, flags) \
721 : _ (u16, versym_index) \
722 : _ (u32, name) \
723 : _ (u32, next_offset)
724 :
725 : typedef struct
726 : {
727 : #define _(t,f) t f;
728 : foreach_elf_dynamic_version_need_field
729 : #undef _
730 : } elf_dynamic_version_need_t;
731 :
732 : typedef struct
733 : {
734 : #define _(t,f) t f;
735 : foreach_elf_dynamic_version_need_aux_field
736 : #undef _
737 : } elf_dynamic_version_need_aux_t;
738 :
739 : typedef union
740 : {
741 : elf_dynamic_version_need_t need;
742 : elf_dynamic_version_need_aux_t aux;
743 : } elf_dynamic_version_need_union_t;
744 :
745 : /* Note section contents. Each entry in the note section begins with
746 : a header of a fixed form. */
747 :
748 : typedef struct
749 : {
750 : u32 name_size;
751 : u32 descriptor_size;
752 : u32 type;
753 : } elf_note_t;
754 :
755 : /* Known names of notes. */
756 :
757 : /* Solaris entries in the note section have this name. */
758 : #define ELF_NOTE_SOLARIS "SUNW Solaris"
759 :
760 : /* Note entries for GNU systems have this name. */
761 : #define ELF_NOTE_GNU "GNU"
762 :
763 :
764 : /* Defined types of notes for Solaris. */
765 :
766 : /* Value of descriptor (one word) is desired pagesize for the binary. */
767 : #define ELF_NOTE_PAGESIZE_HINT 1
768 :
769 :
770 : /* Defined note types for GNU systems. */
771 :
772 : /* ABI information. The descriptor consists of words:
773 : word 0: OS descriptor
774 : word 1: major version of the ABI
775 : word 2: minor version of the ABI
776 : word 3: subminor version of the ABI
777 : */
778 : #ifndef ELF_NOTE_ABI
779 : #define ELF_NOTE_ABI 1
780 : #endif
781 :
782 : /* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI
783 : note section entry. */
784 : #define ELF_NOTE_OS_LINUX 0
785 : #define ELF_NOTE_OS_GNU 1
786 : #define ELF_NOTE_OS_SOLARIS2 2
787 : #define ELF_NOTE_OS_FREEBSD 3
788 :
789 : /* AMD x86-64 relocations. */
790 : #define foreach_elf_x86_64_relocation_type \
791 : _ (NONE, 0) /* No reloc */ \
792 : _ (DIRECT_64, 1) /* Direct 64 bit */ \
793 : _ (PC_REL_I32, 2) /* PC relative 32 bit signed */ \
794 : _ (GOT_REL_32, 3) /* 32 bit GOT entry */ \
795 : _ (PLT_REL_32, 4) /* 32 bit PLT address */ \
796 : _ (COPY, 5) /* Copy symbol at runtime */ \
797 : _ (CREATE_GOT, 6) /* Create GOT entry */ \
798 : _ (CREATE_PLT, 7) /* Create PLT entry */ \
799 : _ (RELATIVE, 8) /* Adjust by program base */ \
800 : _ (PC_REL_I32_GOT, 9) /* 32 bit PC relative offset to GOT */ \
801 : _ (DIRECT_U32, 10) /* Direct 32 bit zero extended */ \
802 : _ (DIRECT_I32, 11) /* Direct 32 bit sign extended */ \
803 : _ (DIRECT_U16, 12) /* Direct 16 bit zero extended */ \
804 : _ (PC_REL_I16, 13) /* 16 bit sign extended pc relative */ \
805 : _ (DIRECT_I8, 14) /* Direct 8 bit sign extended */ \
806 : _ (PC_REL_I8, 15) /* 8 bit sign extended pc relative */ \
807 : _ (DTPMOD64, 16) /* ID of module containing symbol */ \
808 : _ (DTPOFF64, 17) /* Offset in module's TLS block */ \
809 : _ (TPOFF64, 18) /* Offset in initial TLS block */ \
810 : _ (TLSGD, 19) /* 32 bit signed PC relative offset to two GOT entries for GD symbol */ \
811 : _ (TLSLD, 20) /* 32 bit signed PC relative offset to two GOT entries for LD symbol */ \
812 : _ (DTPOFF32, 21) /* Offset in TLS block */ \
813 : _ (GOTTPOFF, 22) /* 32 bit signed PC relative offset to GOT entry for IE symbol */ \
814 : _ (TPOFF32, 23) /* Offset in initial TLS, block) */
815 :
816 : typedef struct
817 : {
818 : elf64_symbol_t *symbols;
819 :
820 : u32 section_index;
821 :
822 : u8 *string_table;
823 :
824 : uword *symbol_by_name;
825 : } elf_symbol_table_t;
826 :
827 : always_inline void
828 93912 : elf_symbol_table_free (elf_symbol_table_t * s)
829 : {
830 93912 : vec_free (s->symbols);
831 93912 : hash_free (s->symbol_by_name);
832 93912 : }
833 :
834 : always_inline u8 *
835 0 : elf_symbol_name (elf_symbol_table_t * t, elf64_symbol_t * sym)
836 : {
837 0 : return vec_elt_at_index (t->string_table, sym->name);
838 : }
839 :
840 : typedef struct
841 : {
842 : elf_relocation_with_addend_t *relocations;
843 :
844 : u32 section_index;
845 : } elf_relocation_table_t;
846 :
847 : always_inline void
848 93912 : elf_relocation_table_free (elf_relocation_table_t * r)
849 : {
850 93912 : vec_free (r->relocations);
851 93912 : }
852 :
853 : typedef struct
854 : {
855 : elf64_section_header_t header;
856 :
857 : u32 index;
858 :
859 : /* Index of segments containing this section. */
860 : uword *segment_index_bitmap;
861 :
862 : /* Aligned size (included padding not included in
863 : header.file_size). */
864 : u64 align_size;
865 :
866 : i64 exec_address_change;
867 :
868 : u8 *contents;
869 : } elf_section_t;
870 :
871 : typedef struct
872 : {
873 : elf64_segment_header_t header;
874 :
875 : /* Sections contained in this segment. */
876 : uword *section_index_bitmap;
877 :
878 : u32 index;
879 :
880 : u8 *contents;
881 : } elf_segment_t;
882 :
883 : typedef struct
884 : {
885 : u8 need_byte_swap;
886 :
887 : u8 parsed_symbols;
888 :
889 : char *file_name;
890 :
891 : elf_first_header_t first_header;
892 :
893 : elf64_file_header_t file_header;
894 :
895 : elf_segment_t *segments;
896 :
897 : elf_section_t *sections;
898 :
899 : uword *section_by_name;
900 : uword *section_by_start_address;
901 :
902 : elf_symbol_table_t *symbol_tables;
903 : elf_relocation_table_t *relocation_tables;
904 :
905 : char *interpreter;
906 :
907 : elf64_dynamic_entry_t *dynamic_entries;
908 : u8 *dynamic_string_table;
909 : u32 dynamic_string_table_section_index;
910 : u32 dynamic_symbol_table_section_index;
911 : u32 dynamic_symbol_table_index;
912 : u32 dynamic_section_index;
913 : u16 *versym;
914 : u32 versym_section_index;
915 : elf_dynamic_version_need_union_t *verneed;
916 : u32 verneed_section_index;
917 : } elf_main_t;
918 :
919 : always_inline void
920 46956 : elf_main_init (elf_main_t * em)
921 : {
922 46956 : clib_memset (em, 0, sizeof (em[0]));
923 46956 : }
924 :
925 : always_inline void
926 47515 : elf_main_free (elf_main_t * em)
927 : {
928 : uword i;
929 :
930 564031 : for (i = 0; i < vec_len (em->segments); i++)
931 516516 : vec_free (em->segments[i].contents);
932 47515 : vec_free (em->segments);
933 :
934 1803889 : for (i = 0; i < vec_len (em->sections); i++)
935 1756380 : vec_free (em->sections[i].contents);
936 47515 : vec_free (em->sections);
937 :
938 47515 : hash_free (em->section_by_name);
939 141427 : for (i = 0; i < vec_len (em->symbol_tables); i++)
940 93912 : elf_symbol_table_free (em->symbol_tables + i);
941 141427 : for (i = 0; i < vec_len (em->relocation_tables); i++)
942 93912 : elf_relocation_table_free (em->relocation_tables + i);
943 :
944 47515 : vec_free (em->dynamic_entries);
945 47515 : vec_free (em->interpreter);
946 47515 : }
947 :
948 : always_inline void
949 : elf_get_segment_contents (elf_main_t * em, void *data, uword segment_index)
950 : {
951 : elf_segment_t *g = vec_elt_at_index (em->segments, segment_index);
952 : if (!g->contents)
953 : vec_add (g->contents, data + g->header.file_offset,
954 : g->header.memory_size);
955 : }
956 :
957 : always_inline void *
958 836466 : elf_get_section_contents (elf_main_t * em,
959 : uword section_index, uword elt_size)
960 : {
961 : elf_section_t *s;
962 : void *result;
963 :
964 836466 : s = vec_elt_at_index (em->sections, section_index);
965 :
966 836466 : result = 0;
967 836466 : if (vec_len (s->contents) > 0)
968 : {
969 836466 : vec_attr_t va = { .elt_sz = elt_size };
970 : /* Make vector copy of contents with given element size. */
971 : result =
972 836466 : _vec_realloc_internal (result, vec_len (s->contents) / elt_size, &va);
973 836466 : clib_memcpy (result, s->contents, vec_len (s->contents));
974 : }
975 :
976 836466 : return result;
977 : }
978 :
979 : always_inline void
980 0 : elf_set_section_contents (elf_main_t * em,
981 : uword section_index,
982 : void *new_contents, uword n_content_bytes)
983 : {
984 : elf_section_t *s;
985 :
986 0 : s = vec_elt_at_index (em->sections, section_index);
987 0 : vec_free (s->contents);
988 0 : vec_add (s->contents, new_contents, n_content_bytes);
989 0 : }
990 :
991 : always_inline u8 *
992 5841940 : elf_section_name (elf_main_t * em, elf_section_t * s)
993 : {
994 5841940 : elf_section_t *es = vec_elt_at_index (em->sections,
995 : em->
996 : file_header.section_header_string_table_index);
997 5841940 : return vec_elt_at_index (es->contents, s->header.name);
998 : }
999 :
1000 : always_inline u8
1001 929065000 : elf_swap_u8 (elf_main_t * em, u8 x)
1002 : {
1003 929065000 : return x;
1004 : }
1005 :
1006 : always_inline u16
1007 465351000 : elf_swap_u16 (elf_main_t * em, u16 x)
1008 : {
1009 465351000 : return em->need_byte_swap ? clib_byte_swap_u16 (x) : x;
1010 : }
1011 :
1012 : always_inline u32
1013 482193000 : elf_swap_u32 (elf_main_t * em, u32 x)
1014 : {
1015 482193000 : return em->need_byte_swap ? clib_byte_swap_u32 (x) : x;
1016 : }
1017 :
1018 : always_inline u64
1019 958945000 : elf_swap_u64 (elf_main_t * em, u64 x)
1020 : {
1021 958945000 : return em->need_byte_swap ? clib_byte_swap_u64 (x) : x;
1022 : }
1023 :
1024 : #define FORMAT_ELF_MAIN_SYMBOLS (1 << 0)
1025 : #define FORMAT_ELF_MAIN_RELOCATIONS (1 << 1)
1026 : #define FORMAT_ELF_MAIN_DYNAMIC (1 << 2)
1027 :
1028 : format_function_t format_elf_main;
1029 : format_function_t format_elf_symbol;
1030 :
1031 : clib_error_t *elf_read_file (elf_main_t * em, char *file_name);
1032 : clib_error_t *elf_write_file (elf_main_t * em, char *file_name);
1033 : clib_error_t *elf_delete_named_section (elf_main_t * em, char *section_name);
1034 : clib_error_t *elf_parse (elf_main_t * em, void *data, uword data_bytes);
1035 : void elf_parse_symbols (elf_main_t * em);
1036 :
1037 : clib_error_t *elf_get_section_by_name (elf_main_t * em, char *section_name,
1038 : elf_section_t ** result);
1039 : clib_error_t *elf_get_section_by_start_address (elf_main_t * em,
1040 : uword start_address,
1041 : elf_section_t ** result);
1042 :
1043 : void
1044 : elf_create_section_with_contents (elf_main_t * em,
1045 : char *section_name,
1046 : elf64_section_header_t * header,
1047 : void *contents, uword n_content_bytes);
1048 : uword elf_delete_segment_with_type (elf_main_t * em,
1049 : elf_segment_type_t segment_type);
1050 : void elf_set_dynamic_entries (elf_main_t * em);
1051 :
1052 : #endif /* included_clib_elf_h */
1053 :
1054 : /*
1055 : * fd.io coding-style-patch-verification: ON
1056 : *
1057 : * Local Variables:
1058 : * eval: (c-set-style "gnu")
1059 : * End:
1060 : */
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