1 // SPDX-License-Identifier: GPL-2.0-or-later
3 /***************************************************************************
4 * Copyright (C) 2007 by Dominic Rath *
5 * Dominic.Rath@gmx.de *
7 * Copyright (C) 2007,2008 Øyvind Harboe *
8 * oyvind.harboe@zylin.com *
10 * Copyright (C) 2008 by Spencer Oliver *
11 * spen@spen-soft.co.uk *
13 * Copyright (C) 2009 by Franck Hereson *
14 * franck.hereson@secad.fr *
16 * Copyright (C) 2018 by Advantest *
17 * florian.meister@advantest.com *
18 ***************************************************************************/
26 #include <helper/log.h>
28 /* convert ELF header field to host endianness */
29 #define field16(elf, field) \
30 ((elf->endianness == ELFDATA2LSB) ? \
31 le_to_h_u16((uint8_t *)&field) : be_to_h_u16((uint8_t *)&field))
33 #define field32(elf, field) \
34 ((elf->endianness == ELFDATA2LSB) ? \
35 le_to_h_u32((uint8_t *)&field) : be_to_h_u32((uint8_t *)&field))
37 #define field64(elf, field) \
38 ((elf->endianness == ELFDATA2LSB) ? \
39 le_to_h_u64((uint8_t *)&field) : be_to_h_u64((uint8_t *)&field))
41 static int autodetect_image_type(struct image
*image
, const char *url
)
44 struct fileio
*fileio
;
48 /* read the first 9 bytes of image */
49 retval
= fileio_open(&fileio
, url
, FILEIO_READ
, FILEIO_BINARY
);
50 if (retval
!= ERROR_OK
)
52 retval
= fileio_read(fileio
, 9, buffer
, &read_bytes
);
55 /* If the file is smaller than 9 bytes, it can only be bin */
56 if (retval
== ERROR_OK
&& read_bytes
!= 9) {
57 LOG_DEBUG("Less than 9 bytes in the image file found.");
58 LOG_DEBUG("BIN image detected.");
59 image
->type
= IMAGE_BINARY
;
63 if (retval
!= ERROR_OK
)
66 /* check header against known signatures */
67 if (strncmp((char *)buffer
, ELFMAG
, SELFMAG
) == 0) {
68 LOG_DEBUG("ELF image detected.");
69 image
->type
= IMAGE_ELF
;
70 } else if ((buffer
[0] == ':') /* record start byte */
71 && (isxdigit(buffer
[1]))
72 && (isxdigit(buffer
[2]))
73 && (isxdigit(buffer
[3]))
74 && (isxdigit(buffer
[4]))
75 && (isxdigit(buffer
[5]))
76 && (isxdigit(buffer
[6]))
77 && (buffer
[7] == '0') /* record type : 00 -> 05 */
78 && (buffer
[8] >= '0') && (buffer
[8] < '6')) {
79 LOG_DEBUG("IHEX image detected.");
80 image
->type
= IMAGE_IHEX
;
81 } else if ((buffer
[0] == 'S') /* record start byte */
82 && (isxdigit(buffer
[1]))
83 && (isxdigit(buffer
[2]))
84 && (isxdigit(buffer
[3]))
85 && (buffer
[1] >= '0') && (buffer
[1] < '9')) {
86 LOG_DEBUG("S19 image detected.");
87 image
->type
= IMAGE_SRECORD
;
89 LOG_DEBUG("BIN image detected.");
90 image
->type
= IMAGE_BINARY
;
96 static int identify_image_type(struct image
*image
, const char *type_string
, const char *url
)
99 if (!strcmp(type_string
, "bin")) {
100 image
->type
= IMAGE_BINARY
;
101 } else if (!strcmp(type_string
, "ihex")) {
102 image
->type
= IMAGE_IHEX
;
103 } else if (!strcmp(type_string
, "elf")) {
104 image
->type
= IMAGE_ELF
;
105 } else if (!strcmp(type_string
, "mem")) {
106 image
->type
= IMAGE_MEMORY
;
107 } else if (!strcmp(type_string
, "s19")) {
108 image
->type
= IMAGE_SRECORD
;
109 } else if (!strcmp(type_string
, "build")) {
110 image
->type
= IMAGE_BUILDER
;
112 LOG_ERROR("Unknown image type: %s, use one of: bin, ihex, elf, mem, s19, build", type_string
);
113 return ERROR_IMAGE_TYPE_UNKNOWN
;
116 return autodetect_image_type(image
, url
);
121 static int image_ihex_buffer_complete_inner(struct image
*image
,
123 struct imagesection
*section
)
125 struct image_ihex
*ihex
= image
->type_private
;
126 struct fileio
*fileio
= ihex
->fileio
;
127 uint32_t full_address
;
128 uint32_t cooked_bytes
;
129 bool end_rec
= false;
131 /* we can't determine the number of sections that we'll have to create ahead of time,
132 * so we locally hold them until parsing is finished */
136 retval
= fileio_size(fileio
, &filesize
);
137 if (retval
!= ERROR_OK
)
140 ihex
->buffer
= malloc(filesize
>> 1);
142 image
->num_sections
= 0;
144 while (!fileio_feof(fileio
)) {
146 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
147 section
[image
->num_sections
].base_address
= 0x0;
148 section
[image
->num_sections
].size
= 0x0;
149 section
[image
->num_sections
].flags
= 0;
151 while (fileio_fgets(fileio
, 1023, lpsz_line
) == ERROR_OK
) {
154 uint32_t record_type
;
156 uint8_t cal_checksum
= 0;
157 size_t bytes_read
= 0;
159 /* skip comments and blank lines */
160 if ((lpsz_line
[0] == '#') || (strlen(lpsz_line
+ strspn(lpsz_line
, "\n\t\r ")) == 0))
163 if (sscanf(&lpsz_line
[bytes_read
], ":%2" SCNx32
"%4" SCNx32
"%2" SCNx32
, &count
,
164 &address
, &record_type
) != 3)
165 return ERROR_IMAGE_FORMAT_ERROR
;
168 cal_checksum
+= (uint8_t)count
;
169 cal_checksum
+= (uint8_t)(address
>> 8);
170 cal_checksum
+= (uint8_t)address
;
171 cal_checksum
+= (uint8_t)record_type
;
173 if (record_type
== 0) { /* Data Record */
174 if ((full_address
& 0xffff) != address
) {
175 /* we encountered a nonconsecutive location, create a new section,
176 * unless the current section has zero size, in which case this specifies
177 * the current section's base address
179 if (section
[image
->num_sections
].size
!= 0) {
180 image
->num_sections
++;
181 if (image
->num_sections
>= IMAGE_MAX_SECTIONS
) {
182 /* too many sections */
183 LOG_ERROR("Too many sections found in IHEX file");
184 return ERROR_IMAGE_FORMAT_ERROR
;
186 section
[image
->num_sections
].size
= 0x0;
187 section
[image
->num_sections
].flags
= 0;
188 section
[image
->num_sections
].private =
189 &ihex
->buffer
[cooked_bytes
];
191 section
[image
->num_sections
].base_address
=
192 (full_address
& 0xffff0000) | address
;
193 full_address
= (full_address
& 0xffff0000) | address
;
196 while (count
-- > 0) {
198 sscanf(&lpsz_line
[bytes_read
], "%2x", &value
);
199 ihex
->buffer
[cooked_bytes
] = (uint8_t)value
;
200 cal_checksum
+= (uint8_t)ihex
->buffer
[cooked_bytes
];
203 section
[image
->num_sections
].size
+= 1;
206 } else if (record_type
== 1) { /* End of File Record */
207 /* finish the current section */
208 image
->num_sections
++;
210 /* copy section information */
211 image
->sections
= malloc(sizeof(struct imagesection
) * image
->num_sections
);
212 for (unsigned int i
= 0; i
< image
->num_sections
; i
++) {
213 image
->sections
[i
].private = section
[i
].private;
214 image
->sections
[i
].base_address
= section
[i
].base_address
;
215 image
->sections
[i
].size
= section
[i
].size
;
216 image
->sections
[i
].flags
= section
[i
].flags
;
221 } else if (record_type
== 2) { /* Linear Address Record */
222 uint16_t upper_address
;
224 sscanf(&lpsz_line
[bytes_read
], "%4hx", &upper_address
);
225 cal_checksum
+= (uint8_t)(upper_address
>> 8);
226 cal_checksum
+= (uint8_t)upper_address
;
229 if ((full_address
>> 4) != upper_address
) {
230 /* we encountered a nonconsecutive location, create a new section,
231 * unless the current section has zero size, in which case this specifies
232 * the current section's base address
234 if (section
[image
->num_sections
].size
!= 0) {
235 image
->num_sections
++;
236 if (image
->num_sections
>= IMAGE_MAX_SECTIONS
) {
237 /* too many sections */
238 LOG_ERROR("Too many sections found in IHEX file");
239 return ERROR_IMAGE_FORMAT_ERROR
;
241 section
[image
->num_sections
].size
= 0x0;
242 section
[image
->num_sections
].flags
= 0;
243 section
[image
->num_sections
].private =
244 &ihex
->buffer
[cooked_bytes
];
246 section
[image
->num_sections
].base_address
=
247 (full_address
& 0xffff) | (upper_address
<< 4);
248 full_address
= (full_address
& 0xffff) | (upper_address
<< 4);
250 } else if (record_type
== 3) { /* Start Segment Address Record */
253 /* "Start Segment Address Record" will not be supported
254 * but we must consume it, and do not create an error. */
255 while (count
-- > 0) {
256 sscanf(&lpsz_line
[bytes_read
], "%2" SCNx32
, &dummy
);
257 cal_checksum
+= (uint8_t)dummy
;
260 } else if (record_type
== 4) { /* Extended Linear Address Record */
261 uint16_t upper_address
;
263 sscanf(&lpsz_line
[bytes_read
], "%4hx", &upper_address
);
264 cal_checksum
+= (uint8_t)(upper_address
>> 8);
265 cal_checksum
+= (uint8_t)upper_address
;
268 if ((full_address
>> 16) != upper_address
) {
269 /* we encountered a nonconsecutive location, create a new section,
270 * unless the current section has zero size, in which case this specifies
271 * the current section's base address
273 if (section
[image
->num_sections
].size
!= 0) {
274 image
->num_sections
++;
275 if (image
->num_sections
>= IMAGE_MAX_SECTIONS
) {
276 /* too many sections */
277 LOG_ERROR("Too many sections found in IHEX file");
278 return ERROR_IMAGE_FORMAT_ERROR
;
280 section
[image
->num_sections
].size
= 0x0;
281 section
[image
->num_sections
].flags
= 0;
282 section
[image
->num_sections
].private =
283 &ihex
->buffer
[cooked_bytes
];
285 section
[image
->num_sections
].base_address
=
286 (full_address
& 0xffff) | (upper_address
<< 16);
287 full_address
= (full_address
& 0xffff) | (upper_address
<< 16);
289 } else if (record_type
== 5) { /* Start Linear Address Record */
290 uint32_t start_address
;
292 sscanf(&lpsz_line
[bytes_read
], "%8" SCNx32
, &start_address
);
293 cal_checksum
+= (uint8_t)(start_address
>> 24);
294 cal_checksum
+= (uint8_t)(start_address
>> 16);
295 cal_checksum
+= (uint8_t)(start_address
>> 8);
296 cal_checksum
+= (uint8_t)start_address
;
299 image
->start_address_set
= true;
300 image
->start_address
= be_to_h_u32((uint8_t *)&start_address
);
302 LOG_ERROR("unhandled IHEX record type: %i", (int)record_type
);
303 return ERROR_IMAGE_FORMAT_ERROR
;
306 sscanf(&lpsz_line
[bytes_read
], "%2" SCNx32
, &checksum
);
308 if ((uint8_t)checksum
!= (uint8_t)(~cal_checksum
+ 1)) {
309 /* checksum failed */
310 LOG_ERROR("incorrect record checksum found in IHEX file");
311 return ERROR_IMAGE_CHECKSUM
;
316 LOG_WARNING("continuing after end-of-file record: %.40s", lpsz_line
);
324 LOG_ERROR("premature end of IHEX file, no matching end-of-file record found");
325 return ERROR_IMAGE_FORMAT_ERROR
;
330 * Allocate memory dynamically instead of on the stack. This
331 * is important w/embedded hosts.
333 static int image_ihex_buffer_complete(struct image
*image
)
335 char *lpsz_line
= malloc(1023);
337 LOG_ERROR("Out of memory");
340 struct imagesection
*section
= malloc(sizeof(struct imagesection
) * IMAGE_MAX_SECTIONS
);
343 LOG_ERROR("Out of memory");
348 retval
= image_ihex_buffer_complete_inner(image
, lpsz_line
, section
);
356 static int image_elf32_read_headers(struct image
*image
)
358 struct image_elf
*elf
= image
->type_private
;
363 bool load_to_vaddr
= false;
365 retval
= fileio_seek(elf
->fileio
, 0);
366 if (retval
!= ERROR_OK
) {
367 LOG_ERROR("cannot seek to ELF file header, read failed");
371 elf
->header32
= malloc(sizeof(Elf32_Ehdr
));
373 if (!elf
->header32
) {
374 LOG_ERROR("insufficient memory to perform operation");
375 return ERROR_FILEIO_OPERATION_FAILED
;
378 retval
= fileio_read(elf
->fileio
, sizeof(Elf32_Ehdr
), (uint8_t *)elf
->header32
, &read_bytes
);
379 if (retval
!= ERROR_OK
) {
380 LOG_ERROR("cannot read ELF file header, read failed");
381 return ERROR_FILEIO_OPERATION_FAILED
;
383 if (read_bytes
!= sizeof(Elf32_Ehdr
)) {
384 LOG_ERROR("cannot read ELF file header, only partially read");
385 return ERROR_FILEIO_OPERATION_FAILED
;
388 elf
->segment_count
= field16(elf
, elf
->header32
->e_phnum
);
389 if (elf
->segment_count
== 0) {
390 LOG_ERROR("invalid ELF file, no program headers");
391 return ERROR_IMAGE_FORMAT_ERROR
;
394 retval
= fileio_seek(elf
->fileio
, field32(elf
, elf
->header32
->e_phoff
));
395 if (retval
!= ERROR_OK
) {
396 LOG_ERROR("cannot seek to ELF program header table, read failed");
400 elf
->segments32
= malloc(elf
->segment_count
*sizeof(Elf32_Phdr
));
401 if (!elf
->segments32
) {
402 LOG_ERROR("insufficient memory to perform operation");
403 return ERROR_FILEIO_OPERATION_FAILED
;
406 retval
= fileio_read(elf
->fileio
, elf
->segment_count
*sizeof(Elf32_Phdr
),
407 (uint8_t *)elf
->segments32
, &read_bytes
);
408 if (retval
!= ERROR_OK
) {
409 LOG_ERROR("cannot read ELF segment headers, read failed");
412 if (read_bytes
!= elf
->segment_count
*sizeof(Elf32_Phdr
)) {
413 LOG_ERROR("cannot read ELF segment headers, only partially read");
414 return ERROR_FILEIO_OPERATION_FAILED
;
417 /* count useful segments (loadable), ignore BSS section */
418 image
->num_sections
= 0;
419 for (i
= 0; i
< elf
->segment_count
; i
++)
421 elf
->segments32
[i
].p_type
) == PT_LOAD
) &&
422 (field32(elf
, elf
->segments32
[i
].p_filesz
) != 0))
423 image
->num_sections
++;
425 if (image
->num_sections
== 0) {
426 LOG_ERROR("invalid ELF file, no loadable segments");
427 return ERROR_IMAGE_FORMAT_ERROR
;
431 * some ELF linkers produce binaries with *all* the program header
432 * p_paddr fields zero (there can be however one loadable segment
433 * that has valid physical address 0x0).
434 * If we have such a binary with more than
435 * one PT_LOAD header, then use p_vaddr instead of p_paddr
436 * (ARM ELF standard demands p_paddr = 0 anyway, and BFD
437 * library uses this approach to workaround zero-initialized p_paddrs
438 * when obtaining lma - look at elf.c of BDF)
440 for (nload
= 0, i
= 0; i
< elf
->segment_count
; i
++)
441 if (elf
->segments32
[i
].p_paddr
!= 0)
443 else if ((field32(elf
,
444 elf
->segments32
[i
].p_type
) == PT_LOAD
) &&
445 (field32(elf
, elf
->segments32
[i
].p_memsz
) != 0))
448 if (i
>= elf
->segment_count
&& nload
> 1)
449 load_to_vaddr
= true;
451 /* alloc and fill sections array with loadable segments */
452 image
->sections
= malloc(image
->num_sections
* sizeof(struct imagesection
));
453 if (!image
->sections
) {
454 LOG_ERROR("insufficient memory to perform operation");
455 return ERROR_FILEIO_OPERATION_FAILED
;
458 for (i
= 0, j
= 0; i
< elf
->segment_count
; i
++) {
460 elf
->segments32
[i
].p_type
) == PT_LOAD
) &&
461 (field32(elf
, elf
->segments32
[i
].p_filesz
) != 0)) {
462 image
->sections
[j
].size
= field32(elf
, elf
->segments32
[i
].p_filesz
);
464 image
->sections
[j
].base_address
= field32(elf
,
465 elf
->segments32
[i
].p_vaddr
);
467 image
->sections
[j
].base_address
= field32(elf
,
468 elf
->segments32
[i
].p_paddr
);
469 image
->sections
[j
].private = &elf
->segments32
[i
];
470 image
->sections
[j
].flags
= field32(elf
, elf
->segments32
[i
].p_flags
);
475 image
->start_address_set
= true;
476 image
->start_address
= field32(elf
, elf
->header32
->e_entry
);
481 static int image_elf64_read_headers(struct image
*image
)
483 struct image_elf
*elf
= image
->type_private
;
488 bool load_to_vaddr
= false;
490 retval
= fileio_seek(elf
->fileio
, 0);
491 if (retval
!= ERROR_OK
) {
492 LOG_ERROR("cannot seek to ELF file header, read failed");
496 elf
->header64
= malloc(sizeof(Elf64_Ehdr
));
498 if (!elf
->header64
) {
499 LOG_ERROR("insufficient memory to perform operation");
500 return ERROR_FILEIO_OPERATION_FAILED
;
503 retval
= fileio_read(elf
->fileio
, sizeof(Elf64_Ehdr
), (uint8_t *)elf
->header64
, &read_bytes
);
504 if (retval
!= ERROR_OK
) {
505 LOG_ERROR("cannot read ELF file header, read failed");
506 return ERROR_FILEIO_OPERATION_FAILED
;
508 if (read_bytes
!= sizeof(Elf64_Ehdr
)) {
509 LOG_ERROR("cannot read ELF file header, only partially read");
510 return ERROR_FILEIO_OPERATION_FAILED
;
513 elf
->segment_count
= field16(elf
, elf
->header64
->e_phnum
);
514 if (elf
->segment_count
== 0) {
515 LOG_ERROR("invalid ELF file, no program headers");
516 return ERROR_IMAGE_FORMAT_ERROR
;
519 retval
= fileio_seek(elf
->fileio
, field64(elf
, elf
->header64
->e_phoff
));
520 if (retval
!= ERROR_OK
) {
521 LOG_ERROR("cannot seek to ELF program header table, read failed");
525 elf
->segments64
= malloc(elf
->segment_count
*sizeof(Elf64_Phdr
));
526 if (!elf
->segments64
) {
527 LOG_ERROR("insufficient memory to perform operation");
528 return ERROR_FILEIO_OPERATION_FAILED
;
531 retval
= fileio_read(elf
->fileio
, elf
->segment_count
*sizeof(Elf64_Phdr
),
532 (uint8_t *)elf
->segments64
, &read_bytes
);
533 if (retval
!= ERROR_OK
) {
534 LOG_ERROR("cannot read ELF segment headers, read failed");
537 if (read_bytes
!= elf
->segment_count
*sizeof(Elf64_Phdr
)) {
538 LOG_ERROR("cannot read ELF segment headers, only partially read");
539 return ERROR_FILEIO_OPERATION_FAILED
;
542 /* count useful segments (loadable), ignore BSS section */
543 image
->num_sections
= 0;
544 for (i
= 0; i
< elf
->segment_count
; i
++)
546 elf
->segments64
[i
].p_type
) == PT_LOAD
) &&
547 (field64(elf
, elf
->segments64
[i
].p_filesz
) != 0))
548 image
->num_sections
++;
550 if (image
->num_sections
== 0) {
551 LOG_ERROR("invalid ELF file, no loadable segments");
552 return ERROR_IMAGE_FORMAT_ERROR
;
556 * some ELF linkers produce binaries with *all* the program header
557 * p_paddr fields zero (there can be however one loadable segment
558 * that has valid physical address 0x0).
559 * If we have such a binary with more than
560 * one PT_LOAD header, then use p_vaddr instead of p_paddr
561 * (ARM ELF standard demands p_paddr = 0 anyway, and BFD
562 * library uses this approach to workaround zero-initialized p_paddrs
563 * when obtaining lma - look at elf.c of BDF)
565 for (nload
= 0, i
= 0; i
< elf
->segment_count
; i
++)
566 if (elf
->segments64
[i
].p_paddr
!= 0)
568 else if ((field32(elf
,
569 elf
->segments64
[i
].p_type
) == PT_LOAD
) &&
570 (field64(elf
, elf
->segments64
[i
].p_memsz
) != 0))
573 if (i
>= elf
->segment_count
&& nload
> 1)
574 load_to_vaddr
= true;
576 /* alloc and fill sections array with loadable segments */
577 image
->sections
= malloc(image
->num_sections
* sizeof(struct imagesection
));
578 if (!image
->sections
) {
579 LOG_ERROR("insufficient memory to perform operation");
580 return ERROR_FILEIO_OPERATION_FAILED
;
583 for (i
= 0, j
= 0; i
< elf
->segment_count
; i
++) {
585 elf
->segments64
[i
].p_type
) == PT_LOAD
) &&
586 (field64(elf
, elf
->segments64
[i
].p_filesz
) != 0)) {
587 image
->sections
[j
].size
= field64(elf
, elf
->segments64
[i
].p_filesz
);
589 image
->sections
[j
].base_address
= field64(elf
,
590 elf
->segments64
[i
].p_vaddr
);
592 image
->sections
[j
].base_address
= field64(elf
,
593 elf
->segments64
[i
].p_paddr
);
594 image
->sections
[j
].private = &elf
->segments64
[i
];
595 image
->sections
[j
].flags
= field64(elf
, elf
->segments64
[i
].p_flags
);
600 image
->start_address_set
= true;
601 image
->start_address
= field64(elf
, elf
->header64
->e_entry
);
606 static int image_elf_read_headers(struct image
*image
)
608 struct image_elf
*elf
= image
->type_private
;
610 unsigned char e_ident
[EI_NIDENT
];
613 retval
= fileio_read(elf
->fileio
, EI_NIDENT
, e_ident
, &read_bytes
);
614 if (retval
!= ERROR_OK
) {
615 LOG_ERROR("cannot read ELF file header, read failed");
616 return ERROR_FILEIO_OPERATION_FAILED
;
618 if (read_bytes
!= EI_NIDENT
) {
619 LOG_ERROR("cannot read ELF file header, only partially read");
620 return ERROR_FILEIO_OPERATION_FAILED
;
623 if (strncmp((char *)e_ident
, ELFMAG
, SELFMAG
) != 0) {
624 LOG_ERROR("invalid ELF file, bad magic number");
625 return ERROR_IMAGE_FORMAT_ERROR
;
628 elf
->endianness
= e_ident
[EI_DATA
];
629 if ((elf
->endianness
!= ELFDATA2LSB
)
630 && (elf
->endianness
!= ELFDATA2MSB
)) {
631 LOG_ERROR("invalid ELF file, unknown endianness setting");
632 return ERROR_IMAGE_FORMAT_ERROR
;
635 switch (e_ident
[EI_CLASS
]) {
637 LOG_DEBUG("ELF32 image detected.");
638 elf
->is_64_bit
= false;
639 return image_elf32_read_headers(image
);
642 LOG_DEBUG("ELF64 image detected.");
643 elf
->is_64_bit
= true;
644 return image_elf64_read_headers(image
);
647 LOG_ERROR("invalid ELF file, only 32/64 bit ELF files are supported");
648 return ERROR_IMAGE_FORMAT_ERROR
;
652 static int image_elf32_read_section(struct image
*image
,
654 target_addr_t offset
,
659 struct image_elf
*elf
= image
->type_private
;
660 Elf32_Phdr
*segment
= (Elf32_Phdr
*)image
->sections
[section
].private;
661 size_t read_size
, really_read
;
666 LOG_DEBUG("load segment %d at 0x%" TARGET_PRIxADDR
" (sz = 0x%" PRIx32
")", section
, offset
, size
);
668 /* read initialized data in current segment if any */
669 if (offset
< field32(elf
, segment
->p_filesz
)) {
670 /* maximal size present in file for the current segment */
671 read_size
= MIN(size
, field32(elf
, segment
->p_filesz
) - offset
);
672 LOG_DEBUG("read elf: size = 0x%zx at 0x%" TARGET_PRIxADDR
"", read_size
,
673 field32(elf
, segment
->p_offset
) + offset
);
674 /* read initialized area of the segment */
675 retval
= fileio_seek(elf
->fileio
, field32(elf
, segment
->p_offset
) + offset
);
676 if (retval
!= ERROR_OK
) {
677 LOG_ERROR("cannot find ELF segment content, seek failed");
680 retval
= fileio_read(elf
->fileio
, read_size
, buffer
, &really_read
);
681 if (retval
!= ERROR_OK
) {
682 LOG_ERROR("cannot read ELF segment content, read failed");
686 *size_read
+= read_size
;
687 /* need more data ? */
695 static int image_elf64_read_section(struct image
*image
,
697 target_addr_t offset
,
702 struct image_elf
*elf
= image
->type_private
;
703 Elf64_Phdr
*segment
= (Elf64_Phdr
*)image
->sections
[section
].private;
704 size_t read_size
, really_read
;
709 LOG_DEBUG("load segment %d at 0x%" TARGET_PRIxADDR
" (sz = 0x%" PRIx32
")", section
, offset
, size
);
711 /* read initialized data in current segment if any */
712 if (offset
< field64(elf
, segment
->p_filesz
)) {
713 /* maximal size present in file for the current segment */
714 read_size
= MIN(size
, field64(elf
, segment
->p_filesz
) - offset
);
715 LOG_DEBUG("read elf: size = 0x%zx at 0x%" TARGET_PRIxADDR
"", read_size
,
716 field64(elf
, segment
->p_offset
) + offset
);
717 /* read initialized area of the segment */
718 retval
= fileio_seek(elf
->fileio
, field64(elf
, segment
->p_offset
) + offset
);
719 if (retval
!= ERROR_OK
) {
720 LOG_ERROR("cannot find ELF segment content, seek failed");
723 retval
= fileio_read(elf
->fileio
, read_size
, buffer
, &really_read
);
724 if (retval
!= ERROR_OK
) {
725 LOG_ERROR("cannot read ELF segment content, read failed");
729 *size_read
+= read_size
;
730 /* need more data ? */
738 static int image_elf_read_section(struct image
*image
,
740 target_addr_t offset
,
745 struct image_elf
*elf
= image
->type_private
;
748 return image_elf64_read_section(image
, section
, offset
, size
, buffer
, size_read
);
750 return image_elf32_read_section(image
, section
, offset
, size
, buffer
, size_read
);
753 static int image_mot_buffer_complete_inner(struct image
*image
,
755 struct imagesection
*section
)
757 struct image_mot
*mot
= image
->type_private
;
758 struct fileio
*fileio
= mot
->fileio
;
759 uint32_t full_address
;
760 uint32_t cooked_bytes
;
761 bool end_rec
= false;
763 /* we can't determine the number of sections that we'll have to create ahead of time,
764 * so we locally hold them until parsing is finished */
768 retval
= fileio_size(fileio
, &filesize
);
769 if (retval
!= ERROR_OK
)
772 mot
->buffer
= malloc(filesize
>> 1);
774 image
->num_sections
= 0;
776 while (!fileio_feof(fileio
)) {
778 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
779 section
[image
->num_sections
].base_address
= 0x0;
780 section
[image
->num_sections
].size
= 0x0;
781 section
[image
->num_sections
].flags
= 0;
783 while (fileio_fgets(fileio
, 1023, lpsz_line
) == ERROR_OK
) {
786 uint32_t record_type
;
788 uint8_t cal_checksum
= 0;
789 uint32_t bytes_read
= 0;
791 /* skip comments and blank lines */
792 if ((lpsz_line
[0] == '#') || (strlen(lpsz_line
+ strspn(lpsz_line
, "\n\t\r ")) == 0))
795 /* get record type and record length */
796 if (sscanf(&lpsz_line
[bytes_read
], "S%1" SCNx32
"%2" SCNx32
, &record_type
,
798 return ERROR_IMAGE_FORMAT_ERROR
;
801 cal_checksum
+= (uint8_t)count
;
803 /* skip checksum byte */
806 if (record_type
== 0) {
807 /* S0 - starting record (optional) */
810 while (count
-- > 0) {
811 sscanf(&lpsz_line
[bytes_read
], "%2x", &value
);
812 cal_checksum
+= (uint8_t)value
;
815 } else if (record_type
>= 1 && record_type
<= 3) {
816 switch (record_type
) {
818 /* S1 - 16 bit address data record */
819 sscanf(&lpsz_line
[bytes_read
], "%4" SCNx32
, &address
);
820 cal_checksum
+= (uint8_t)(address
>> 8);
821 cal_checksum
+= (uint8_t)address
;
827 /* S2 - 24 bit address data record */
828 sscanf(&lpsz_line
[bytes_read
], "%6" SCNx32
, &address
);
829 cal_checksum
+= (uint8_t)(address
>> 16);
830 cal_checksum
+= (uint8_t)(address
>> 8);
831 cal_checksum
+= (uint8_t)address
;
837 /* S3 - 32 bit address data record */
838 sscanf(&lpsz_line
[bytes_read
], "%8" SCNx32
, &address
);
839 cal_checksum
+= (uint8_t)(address
>> 24);
840 cal_checksum
+= (uint8_t)(address
>> 16);
841 cal_checksum
+= (uint8_t)(address
>> 8);
842 cal_checksum
+= (uint8_t)address
;
849 if (full_address
!= address
) {
850 /* we encountered a nonconsecutive location, create a new section,
851 * unless the current section has zero size, in which case this specifies
852 * the current section's base address
854 if (section
[image
->num_sections
].size
!= 0) {
855 image
->num_sections
++;
856 section
[image
->num_sections
].size
= 0x0;
857 section
[image
->num_sections
].flags
= 0;
858 section
[image
->num_sections
].private =
859 &mot
->buffer
[cooked_bytes
];
861 section
[image
->num_sections
].base_address
= address
;
862 full_address
= address
;
865 while (count
-- > 0) {
867 sscanf(&lpsz_line
[bytes_read
], "%2x", &value
);
868 mot
->buffer
[cooked_bytes
] = (uint8_t)value
;
869 cal_checksum
+= (uint8_t)mot
->buffer
[cooked_bytes
];
872 section
[image
->num_sections
].size
+= 1;
875 } else if (record_type
== 5 || record_type
== 6) {
876 /* S5 and S6 are the data count records, we ignore them */
879 while (count
-- > 0) {
880 sscanf(&lpsz_line
[bytes_read
], "%2" SCNx32
, &dummy
);
881 cal_checksum
+= (uint8_t)dummy
;
884 } else if (record_type
>= 7 && record_type
<= 9) {
885 /* S7, S8, S9 - ending records for 32, 24 and 16bit */
886 image
->num_sections
++;
888 /* copy section information */
889 image
->sections
= malloc(sizeof(struct imagesection
) * image
->num_sections
);
890 for (unsigned int i
= 0; i
< image
->num_sections
; i
++) {
891 image
->sections
[i
].private = section
[i
].private;
892 image
->sections
[i
].base_address
= section
[i
].base_address
;
893 image
->sections
[i
].size
= section
[i
].size
;
894 image
->sections
[i
].flags
= section
[i
].flags
;
900 LOG_ERROR("unhandled S19 record type: %i", (int)(record_type
));
901 return ERROR_IMAGE_FORMAT_ERROR
;
904 /* account for checksum, will always be 0xFF */
905 sscanf(&lpsz_line
[bytes_read
], "%2" SCNx32
, &checksum
);
906 cal_checksum
+= (uint8_t)checksum
;
908 if (cal_checksum
!= 0xFF) {
909 /* checksum failed */
910 LOG_ERROR("incorrect record checksum found in S19 file");
911 return ERROR_IMAGE_CHECKSUM
;
916 LOG_WARNING("continuing after end-of-file record: %.40s", lpsz_line
);
924 LOG_ERROR("premature end of S19 file, no matching end-of-file record found");
925 return ERROR_IMAGE_FORMAT_ERROR
;
930 * Allocate memory dynamically instead of on the stack. This
931 * is important w/embedded hosts.
933 static int image_mot_buffer_complete(struct image
*image
)
935 char *lpsz_line
= malloc(1023);
937 LOG_ERROR("Out of memory");
940 struct imagesection
*section
= malloc(sizeof(struct imagesection
) * IMAGE_MAX_SECTIONS
);
943 LOG_ERROR("Out of memory");
948 retval
= image_mot_buffer_complete_inner(image
, lpsz_line
, section
);
956 int image_open(struct image
*image
, const char *url
, const char *type_string
)
958 int retval
= ERROR_OK
;
960 retval
= identify_image_type(image
, type_string
, url
);
961 if (retval
!= ERROR_OK
)
964 if (image
->type
== IMAGE_BINARY
) {
965 struct image_binary
*image_binary
;
967 image_binary
= image
->type_private
= malloc(sizeof(struct image_binary
));
969 retval
= fileio_open(&image_binary
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
);
970 if (retval
!= ERROR_OK
)
971 goto free_mem_on_error
;
974 retval
= fileio_size(image_binary
->fileio
, &filesize
);
975 if (retval
!= ERROR_OK
) {
976 fileio_close(image_binary
->fileio
);
977 goto free_mem_on_error
;
980 image
->num_sections
= 1;
981 image
->sections
= malloc(sizeof(struct imagesection
));
982 image
->sections
[0].base_address
= 0x0;
983 image
->sections
[0].size
= filesize
;
984 image
->sections
[0].flags
= 0;
985 } else if (image
->type
== IMAGE_IHEX
) {
986 struct image_ihex
*image_ihex
;
988 image_ihex
= image
->type_private
= malloc(sizeof(struct image_ihex
));
990 retval
= fileio_open(&image_ihex
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
);
991 if (retval
!= ERROR_OK
)
992 goto free_mem_on_error
;
994 retval
= image_ihex_buffer_complete(image
);
995 if (retval
!= ERROR_OK
) {
997 "failed buffering IHEX image, check server output for additional information");
998 fileio_close(image_ihex
->fileio
);
999 goto free_mem_on_error
;
1001 } else if (image
->type
== IMAGE_ELF
) {
1002 struct image_elf
*image_elf
;
1004 image_elf
= image
->type_private
= malloc(sizeof(struct image_elf
));
1006 retval
= fileio_open(&image_elf
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
);
1007 if (retval
!= ERROR_OK
)
1008 goto free_mem_on_error
;
1010 retval
= image_elf_read_headers(image
);
1011 if (retval
!= ERROR_OK
) {
1012 fileio_close(image_elf
->fileio
);
1013 goto free_mem_on_error
;
1015 } else if (image
->type
== IMAGE_MEMORY
) {
1016 struct target
*target
= get_target(url
);
1019 LOG_ERROR("target '%s' not defined", url
);
1023 struct image_memory
*image_memory
;
1025 image
->num_sections
= 1;
1026 image
->sections
= malloc(sizeof(struct imagesection
));
1027 image
->sections
[0].base_address
= 0x0;
1028 image
->sections
[0].size
= 0xffffffff;
1029 image
->sections
[0].flags
= 0;
1031 image_memory
= image
->type_private
= malloc(sizeof(struct image_memory
));
1033 image_memory
->target
= target
;
1034 image_memory
->cache
= NULL
;
1035 image_memory
->cache_address
= 0x0;
1036 } else if (image
->type
== IMAGE_SRECORD
) {
1037 struct image_mot
*image_mot
;
1039 image_mot
= image
->type_private
= malloc(sizeof(struct image_mot
));
1041 retval
= fileio_open(&image_mot
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
);
1042 if (retval
!= ERROR_OK
)
1043 goto free_mem_on_error
;
1045 retval
= image_mot_buffer_complete(image
);
1046 if (retval
!= ERROR_OK
) {
1048 "failed buffering S19 image, check server output for additional information");
1049 fileio_close(image_mot
->fileio
);
1050 goto free_mem_on_error
;
1052 } else if (image
->type
== IMAGE_BUILDER
) {
1053 image
->num_sections
= 0;
1054 image
->base_address_set
= false;
1055 image
->sections
= NULL
;
1056 image
->type_private
= NULL
;
1059 if (image
->base_address_set
) {
1061 for (unsigned int section
= 0; section
< image
->num_sections
; section
++)
1062 image
->sections
[section
].base_address
+= image
->base_address
;
1063 /* we're done relocating. The two statements below are mainly
1064 * for documentation purposes: stop anyone from empirically
1065 * thinking they should use these values henceforth. */
1066 image
->base_address
= 0;
1067 image
->base_address_set
= false;
1073 free(image
->type_private
);
1074 image
->type_private
= NULL
;
1078 int image_read_section(struct image
*image
,
1080 target_addr_t offset
,
1087 /* don't read past the end of a section */
1088 if (offset
+ size
> image
->sections
[section
].size
) {
1090 "read past end of section: 0x%8.8" TARGET_PRIxADDR
" + 0x%8.8" PRIx32
" > 0x%8.8" PRIx32
"",
1093 image
->sections
[section
].size
);
1094 return ERROR_COMMAND_SYNTAX_ERROR
;
1097 if (image
->type
== IMAGE_BINARY
) {
1098 struct image_binary
*image_binary
= image
->type_private
;
1100 /* only one section in a plain binary */
1102 return ERROR_COMMAND_SYNTAX_ERROR
;
1104 /* seek to offset */
1105 retval
= fileio_seek(image_binary
->fileio
, offset
);
1106 if (retval
!= ERROR_OK
)
1109 /* return requested bytes */
1110 retval
= fileio_read(image_binary
->fileio
, size
, buffer
, size_read
);
1111 if (retval
!= ERROR_OK
)
1113 } else if (image
->type
== IMAGE_IHEX
) {
1114 memcpy(buffer
, (uint8_t *)image
->sections
[section
].private + offset
, size
);
1118 } else if (image
->type
== IMAGE_ELF
) {
1119 return image_elf_read_section(image
, section
, offset
, size
, buffer
, size_read
);
1120 } else if (image
->type
== IMAGE_MEMORY
) {
1121 struct image_memory
*image_memory
= image
->type_private
;
1122 uint32_t address
= image
->sections
[section
].base_address
+ offset
;
1126 while ((size
- *size_read
) > 0) {
1127 uint32_t size_in_cache
;
1129 if (!image_memory
->cache
1130 || (address
< image_memory
->cache_address
)
1132 (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
))) {
1133 if (!image_memory
->cache
)
1134 image_memory
->cache
= malloc(IMAGE_MEMORY_CACHE_SIZE
);
1136 if (target_read_buffer(image_memory
->target
, address
&
1137 ~(IMAGE_MEMORY_CACHE_SIZE
- 1),
1138 IMAGE_MEMORY_CACHE_SIZE
, image_memory
->cache
) != ERROR_OK
) {
1139 free(image_memory
->cache
);
1140 image_memory
->cache
= NULL
;
1141 return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE
;
1143 image_memory
->cache_address
= address
&
1144 ~(IMAGE_MEMORY_CACHE_SIZE
- 1);
1148 (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
) - address
;
1150 memcpy(buffer
+ *size_read
,
1151 image_memory
->cache
+ (address
- image_memory
->cache_address
),
1152 (size_in_cache
> size
) ? size
: size_in_cache
1155 *size_read
+= (size_in_cache
> size
) ? size
: size_in_cache
;
1156 address
+= (size_in_cache
> size
) ? size
: size_in_cache
;
1158 } else if (image
->type
== IMAGE_SRECORD
) {
1159 memcpy(buffer
, (uint8_t *)image
->sections
[section
].private + offset
, size
);
1163 } else if (image
->type
== IMAGE_BUILDER
) {
1164 memcpy(buffer
, (uint8_t *)image
->sections
[section
].private + offset
, size
);
1173 int image_add_section(struct image
*image
, target_addr_t base
, uint32_t size
, uint64_t flags
, uint8_t const *data
)
1175 struct imagesection
*section
;
1177 /* only image builder supports adding sections */
1178 if (image
->type
!= IMAGE_BUILDER
)
1179 return ERROR_COMMAND_SYNTAX_ERROR
;
1181 /* see if there's a previous section */
1182 if (image
->num_sections
) {
1183 section
= &image
->sections
[image
->num_sections
- 1];
1185 /* see if it's enough to extend the last section,
1186 * adding data to previous sections or merging is not supported */
1187 if (((section
->base_address
+ section
->size
) == base
) &&
1188 (section
->flags
== flags
)) {
1189 section
->private = realloc(section
->private, section
->size
+ size
);
1190 memcpy((uint8_t *)section
->private + section
->size
, data
, size
);
1191 section
->size
+= size
;
1196 /* allocate new section */
1197 image
->num_sections
++;
1199 realloc(image
->sections
, sizeof(struct imagesection
) * image
->num_sections
);
1200 section
= &image
->sections
[image
->num_sections
- 1];
1201 section
->base_address
= base
;
1202 section
->size
= size
;
1203 section
->flags
= flags
;
1204 section
->private = malloc(sizeof(uint8_t) * size
);
1205 memcpy((uint8_t *)section
->private, data
, size
);
1210 void image_close(struct image
*image
)
1212 if (image
->type
== IMAGE_BINARY
) {
1213 struct image_binary
*image_binary
= image
->type_private
;
1215 fileio_close(image_binary
->fileio
);
1216 } else if (image
->type
== IMAGE_IHEX
) {
1217 struct image_ihex
*image_ihex
= image
->type_private
;
1219 fileio_close(image_ihex
->fileio
);
1221 free(image_ihex
->buffer
);
1222 image_ihex
->buffer
= NULL
;
1223 } else if (image
->type
== IMAGE_ELF
) {
1224 struct image_elf
*image_elf
= image
->type_private
;
1226 fileio_close(image_elf
->fileio
);
1228 if (image_elf
->is_64_bit
) {
1229 free(image_elf
->header64
);
1230 image_elf
->header64
= NULL
;
1232 free(image_elf
->segments64
);
1233 image_elf
->segments64
= NULL
;
1235 free(image_elf
->header32
);
1236 image_elf
->header32
= NULL
;
1238 free(image_elf
->segments32
);
1239 image_elf
->segments32
= NULL
;
1241 } else if (image
->type
== IMAGE_MEMORY
) {
1242 struct image_memory
*image_memory
= image
->type_private
;
1244 free(image_memory
->cache
);
1245 image_memory
->cache
= NULL
;
1246 } else if (image
->type
== IMAGE_SRECORD
) {
1247 struct image_mot
*image_mot
= image
->type_private
;
1249 fileio_close(image_mot
->fileio
);
1251 free(image_mot
->buffer
);
1252 image_mot
->buffer
= NULL
;
1253 } else if (image
->type
== IMAGE_BUILDER
) {
1254 for (unsigned int i
= 0; i
< image
->num_sections
; i
++) {
1255 free(image
->sections
[i
].private);
1256 image
->sections
[i
].private = NULL
;
1260 free(image
->type_private
);
1261 image
->type_private
= NULL
;
1263 free(image
->sections
);
1264 image
->sections
= NULL
;
1267 int image_calculate_checksum(const uint8_t *buffer
, uint32_t nbytes
, uint32_t *checksum
)
1269 uint32_t crc
= 0xffffffff;
1270 LOG_DEBUG("Calculating checksum");
1272 static uint32_t crc32_table
[256];
1274 static bool first_init
;
1276 /* Initialize the CRC table and the decoding table. */
1277 unsigned int i
, j
, c
;
1278 for (i
= 0; i
< 256; i
++) {
1280 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
1281 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
1288 while (nbytes
> 0) {
1295 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buffer
++) & 255];
1300 LOG_DEBUG("Calculating checksum done; checksum=0x%" PRIx32
, crc
);