1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
33 #include "replacements.h"
39 /* convert ELF header field to host endianness */
40 #define field16(elf,field)\
41 ((elf->endianness==ELFDATA2LSB)? \
42 le_to_h_u16((u8*)&field):be_to_h_u16((u8*)&field))
44 #define field32(elf,field)\
45 ((elf->endianness==ELFDATA2LSB)? \
46 le_to_h_u32((u8*)&field):be_to_h_u32((u8*)&field))
48 static int autodetect_image_type(image_t
*image
, char *url
)
55 /* read the first 4 bytes of image */
56 if ((retval
= fileio_open(&fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
58 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
, "cannot open image: %s", fileio
.error_str
);
59 ERROR(image
->error_str
);
62 if ((retval
= fileio_read(&fileio
, 9, buffer
, &read_bytes
)) != ERROR_OK
)
64 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
, "cannot read image header: %s", fileio
.error_str
);
65 ERROR(image
->error_str
);
66 return ERROR_FILEIO_OPERATION_FAILED
;
70 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
, "cannot read image, only partially read");
71 ERROR(image
->error_str
);
72 return ERROR_FILEIO_OPERATION_FAILED
;
74 fileio_close(&fileio
);
76 /* check header against known signatures */
77 if (strncmp((char*)buffer
,ELFMAG
,SELFMAG
)==0)
79 DEBUG("ELF image detected.");
80 image
->type
= IMAGE_ELF
;
82 else if ((buffer
[0]==':') /* record start byte */
83 &&(isxdigit(buffer
[1]))
84 &&(isxdigit(buffer
[2]))
85 &&(isxdigit(buffer
[3]))
86 &&(isxdigit(buffer
[4]))
87 &&(isxdigit(buffer
[5]))
88 &&(isxdigit(buffer
[6]))
89 &&(buffer
[7]=='0') /* record type : 00 -> 05 */
90 &&(buffer
[8]>='0')&&(buffer
[8]<'6'))
92 DEBUG("IHEX image detected.");
93 image
->type
= IMAGE_IHEX
;
95 else if ((buffer
[0] == 'S') /* record start byte */
96 &&(isxdigit(buffer
[1]))
97 &&(isxdigit(buffer
[2]))
98 &&(isxdigit(buffer
[3]))
99 &&(buffer
[1] >= '0') && (buffer
[1] < '9'))
101 DEBUG("S19 image detected.");
102 image
->type
= IMAGE_SRECORD
;
106 image
->type
= IMAGE_BINARY
;
112 int identify_image_type(image_t
*image
, char *type_string
, char *url
)
116 if (!strcmp(type_string
, "bin"))
118 image
->type
= IMAGE_BINARY
;
120 else if (!strcmp(type_string
, "ihex"))
122 image
->type
= IMAGE_IHEX
;
124 else if (!strcmp(type_string
, "elf"))
126 image
->type
= IMAGE_ELF
;
128 else if (!strcmp(type_string
, "mem"))
130 image
->type
= IMAGE_MEMORY
;
132 else if (!strcmp(type_string
, "s19"))
134 image
->type
= IMAGE_SRECORD
;
136 else if (!strcmp(type_string
, "build"))
138 image
->type
= IMAGE_BUILDER
;
142 return ERROR_IMAGE_TYPE_UNKNOWN
;
147 return autodetect_image_type(image
, url
);
153 int image_ihex_buffer_complete(image_t
*image
)
155 image_ihex_t
*ihex
= image
->type_private
;
156 fileio_t
*fileio
= &ihex
->fileio
;
157 u32 full_address
= 0x0;
162 /* we can't determine the number of sections that we'll have to create ahead of time,
163 * so we locally hold them until parsing is finished */
164 image_section_t section
[IMAGE_MAX_SECTIONS
];
166 ihex
->buffer
= malloc(fileio
->size
>> 1);
168 image
->num_sections
= 0;
169 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
170 section
[image
->num_sections
].base_address
= 0x0;
171 section
[image
->num_sections
].size
= 0x0;
172 section
[image
->num_sections
].flags
= 0;
174 while (fileio_fgets(fileio
, 1023, lpszLine
) == ERROR_OK
)
183 if (sscanf(&lpszLine
[bytes_read
], ":%2x%4x%2x", &count
, &address
, &record_type
) != 3)
185 return ERROR_IMAGE_FORMAT_ERROR
;
189 cal_checksum
+= (u8
)count
;
190 cal_checksum
+= (u8
)(address
>> 8);
191 cal_checksum
+= (u8
)address
;
192 cal_checksum
+= (u8
)record_type
;
194 if (record_type
== 0) /* Data Record */
196 if ((full_address
& 0xffff) != address
)
198 /* we encountered a nonconsecutive location, create a new section,
199 * unless the current section has zero size, in which case this specifies
200 * the current section's base address
202 if (section
[image
->num_sections
].size
!= 0)
204 image
->num_sections
++;
205 section
[image
->num_sections
].size
= 0x0;
206 section
[image
->num_sections
].flags
= 0;
207 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
209 section
[image
->num_sections
].base_address
=
210 (full_address
& 0xffff0000) | address
;
211 full_address
= (full_address
& 0xffff0000) | address
;
216 sscanf(&lpszLine
[bytes_read
], "%2x", (u32
*)&ihex
->buffer
[cooked_bytes
]);
217 cal_checksum
+= (u8
)ihex
->buffer
[cooked_bytes
];
220 section
[image
->num_sections
].size
+= 1;
224 else if (record_type
== 1) /* End of File Record */
226 /* finish the current section */
227 image
->num_sections
++;
229 /* copy section information */
230 image
->sections
= malloc(sizeof(image_section_t
) * image
->num_sections
);
231 for (i
= 0; i
< image
->num_sections
; i
++)
233 image
->sections
[i
].private = section
[i
].private;
234 image
->sections
[i
].base_address
= section
[i
].base_address
;
235 image
->sections
[i
].size
= section
[i
].size
;
236 image
->sections
[i
].flags
= section
[i
].flags
;
241 else if (record_type
== 2) /* Linear Address Record */
245 sscanf(&lpszLine
[bytes_read
], "%4hx", &upper_address
);
246 cal_checksum
+= (u8
)(upper_address
>> 8);
247 cal_checksum
+= (u8
)upper_address
;
250 if ((full_address
>> 4) != upper_address
)
252 /* we encountered a nonconsecutive location, create a new section,
253 * unless the current section has zero size, in which case this specifies
254 * the current section's base address
256 if (section
[image
->num_sections
].size
!= 0)
258 image
->num_sections
++;
259 section
[image
->num_sections
].size
= 0x0;
260 section
[image
->num_sections
].flags
= 0;
261 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
263 section
[image
->num_sections
].base_address
=
264 (full_address
& 0xffff) | (upper_address
<< 4);
265 full_address
= (full_address
& 0xffff) | (upper_address
<< 4);
268 else if (record_type
== 4) /* Extended Linear Address Record */
272 sscanf(&lpszLine
[bytes_read
], "%4hx", &upper_address
);
273 cal_checksum
+= (u8
)(upper_address
>> 8);
274 cal_checksum
+= (u8
)upper_address
;
277 if ((full_address
>> 16) != upper_address
)
279 /* we encountered a nonconsecutive location, create a new section,
280 * unless the current section has zero size, in which case this specifies
281 * the current section's base address
283 if (section
[image
->num_sections
].size
!= 0)
285 image
->num_sections
++;
286 section
[image
->num_sections
].size
= 0x0;
287 section
[image
->num_sections
].flags
= 0;
288 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
290 section
[image
->num_sections
].base_address
=
291 (full_address
& 0xffff) | (upper_address
<< 16);
292 full_address
= (full_address
& 0xffff) | (upper_address
<< 16);
295 else if (record_type
== 5) /* Start Linear Address Record */
299 sscanf(&lpszLine
[bytes_read
], "%8x", &start_address
);
300 cal_checksum
+= (u8
)(start_address
>> 24);
301 cal_checksum
+= (u8
)(start_address
>> 16);
302 cal_checksum
+= (u8
)(start_address
>> 8);
303 cal_checksum
+= (u8
)start_address
;
306 image
->start_address_set
= 1;
307 image
->start_address
= be_to_h_u32((u8
*)&start_address
);
311 ERROR("unhandled IHEX record type: %i", record_type
);
312 return ERROR_IMAGE_FORMAT_ERROR
;
315 sscanf(&lpszLine
[bytes_read
], "%2x", &checksum
);
318 if ((u8
)checksum
!= (u8
)(~cal_checksum
+ 1))
320 /* checksum failed */
321 ERROR("incorrect record checksum found in IHEX file");
322 return ERROR_IMAGE_CHECKSUM
;
326 ERROR("premature end of IHEX file, no end-of-file record found");
327 return ERROR_IMAGE_FORMAT_ERROR
;
330 int image_elf_read_headers(image_t
*image
)
332 image_elf_t
*elf
= image
->type_private
;
337 elf
->header
= malloc(sizeof(Elf32_Ehdr
));
339 if ((retval
= fileio_read(&elf
->fileio
, sizeof(Elf32_Ehdr
), (u8
*)elf
->header
, &read_bytes
)) != ERROR_OK
)
341 ERROR("cannot read ELF file header, read failed");
342 return ERROR_FILEIO_OPERATION_FAILED
;
344 if (read_bytes
!= sizeof(Elf32_Ehdr
))
346 ERROR("cannot read ELF file header, only partially read");
347 return ERROR_FILEIO_OPERATION_FAILED
;
350 if (strncmp((char*)elf
->header
->e_ident
,ELFMAG
,SELFMAG
)!=0)
352 ERROR("invalid ELF file, bad magic number");
353 return ERROR_IMAGE_FORMAT_ERROR
;
355 if (elf
->header
->e_ident
[EI_CLASS
]!=ELFCLASS32
)
357 ERROR("invalid ELF file, only 32bits files are supported");
358 return ERROR_IMAGE_FORMAT_ERROR
;
362 elf
->endianness
= elf
->header
->e_ident
[EI_DATA
];
363 if ((elf
->endianness
!=ELFDATA2LSB
)
364 &&(elf
->endianness
!=ELFDATA2MSB
))
366 ERROR("invalid ELF file, unknown endianess setting");
367 return ERROR_IMAGE_FORMAT_ERROR
;
370 elf
->segment_count
= field16(elf
,elf
->header
->e_phnum
);
371 if (elf
->segment_count
==0)
373 ERROR("invalid ELF file, no program headers");
374 return ERROR_IMAGE_FORMAT_ERROR
;
377 elf
->segments
= malloc(elf
->segment_count
*sizeof(Elf32_Phdr
));
379 if ((retval
= fileio_read(&elf
->fileio
, elf
->segment_count
*sizeof(Elf32_Phdr
), (u8
*)elf
->segments
, &read_bytes
)) != ERROR_OK
)
381 ERROR("cannot read ELF segment headers, read failed");
384 if (read_bytes
!= elf
->segment_count
*sizeof(Elf32_Phdr
))
386 ERROR("cannot read ELF segment headers, only partially read");
387 return ERROR_FILEIO_OPERATION_FAILED
;
390 /* count useful segments (loadable), ignore BSS section */
391 image
->num_sections
= 0;
392 for (i
=0;i
<elf
->segment_count
;i
++)
393 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
394 image
->num_sections
++;
395 /* alloc and fill sections array with loadable segments */
396 image
->sections
= malloc(image
->num_sections
* sizeof(image_section_t
));
397 for (i
=0,j
=0;i
<elf
->segment_count
;i
++)
399 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
401 image
->sections
[j
].size
= field32(elf
,elf
->segments
[i
].p_memsz
);
402 image
->sections
[j
].base_address
= field32(elf
,elf
->segments
[i
].p_paddr
);
403 image
->sections
[j
].private = &elf
->segments
[i
];
404 image
->sections
[j
].flags
= field32(elf
,elf
->segments
[i
].p_flags
);
409 image
->start_address_set
= 1;
410 image
->start_address
= field32(elf
,elf
->header
->e_entry
);
415 int image_elf_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
417 image_elf_t
*elf
= image
->type_private
;
418 Elf32_Phdr
*segment
= (Elf32_Phdr
*)image
->sections
[section
].private;
419 u32 read_size
,really_read
;
424 DEBUG("load segment %d at 0x%x (sz=0x%x)",section
,offset
,size
);
426 /* read initialized data in current segment if any */
427 if (offset
<field32(elf
,segment
->p_filesz
))
429 /* maximal size present in file for the current segment */
430 read_size
= MIN(size
, field32(elf
,segment
->p_filesz
)-offset
);
431 DEBUG("read elf: size = 0x%x at 0x%x",read_size
,
432 field32(elf
,segment
->p_offset
)+offset
);
433 /* read initialized area of the segment */
434 if ((retval
= fileio_seek(&elf
->fileio
, field32(elf
,segment
->p_offset
)+offset
)) != ERROR_OK
)
436 ERROR("cannot find ELF segment content, seek failed");
439 if ((retval
= fileio_read(&elf
->fileio
, read_size
, buffer
, &really_read
)) != ERROR_OK
)
441 ERROR("cannot read ELF segment content, read failed");
447 *size_read
+= read_size
;
448 /* need more data ? */
452 /* if there is remaining zeroed area in current segment */
453 if (offset
<field32(elf
,segment
->p_memsz
))
455 /* fill zeroed part (BSS) of the segment */
456 read_size
= MIN(size
, field32(elf
,segment
->p_memsz
)-offset
);
457 DEBUG("zero fill: size = 0x%x",read_size
);
458 memset(buffer
,0,read_size
);
459 *size_read
+= read_size
;
465 int image_mot_buffer_complete(image_t
*image
)
467 image_mot_t
*mot
= image
->type_private
;
468 fileio_t
*fileio
= &mot
->fileio
;
469 u32 full_address
= 0x0;
474 /* we can't determine the number of sections that we'll have to create ahead of time,
475 * so we locally hold them until parsing is finished */
476 image_section_t section
[IMAGE_MAX_SECTIONS
];
478 mot
->buffer
= malloc(fileio
->size
>> 1);
480 image
->num_sections
= 0;
481 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
482 section
[image
->num_sections
].base_address
= 0x0;
483 section
[image
->num_sections
].size
= 0x0;
484 section
[image
->num_sections
].flags
= 0;
486 while (fileio_fgets(fileio
, 1023, lpszLine
) == ERROR_OK
)
495 /* get record type and record length */
496 if (sscanf(&lpszLine
[bytes_read
], "S%1x%2x", &record_type
, &count
) != 2)
498 return ERROR_IMAGE_FORMAT_ERROR
;
502 cal_checksum
+= (u8
)count
;
504 /* skip checksum byte */
507 if (record_type
== 0)
509 /* S0 - starting record (optional) */
512 while (count
-- > 0) {
513 sscanf(&lpszLine
[bytes_read
], "%2x", &iValue
);
514 cal_checksum
+= (u8
)iValue
;
518 else if (record_type
>= 1 && record_type
<= 3)
520 switch( record_type
)
523 /* S1 - 16 bit address data record */
524 sscanf(&lpszLine
[bytes_read
], "%4x", &address
);
525 cal_checksum
+= (u8
)(address
>> 8);
526 cal_checksum
+= (u8
)address
;
532 /* S2 - 24 bit address data record */
533 sscanf(&lpszLine
[bytes_read
], "%6x", &address
);
534 cal_checksum
+= (u8
)(address
>> 16);
535 cal_checksum
+= (u8
)(address
>> 8);
536 cal_checksum
+= (u8
)address
;
542 /* S3 - 32 bit address data record */
543 sscanf(&lpszLine
[bytes_read
], "%8x", &address
);
544 cal_checksum
+= (u8
)(address
>> 24);
545 cal_checksum
+= (u8
)(address
>> 16);
546 cal_checksum
+= (u8
)(address
>> 8);
547 cal_checksum
+= (u8
)address
;
554 if (full_address
!= address
)
556 /* we encountered a nonconsecutive location, create a new section,
557 * unless the current section has zero size, in which case this specifies
558 * the current section's base address
560 if (section
[image
->num_sections
].size
!= 0)
562 image
->num_sections
++;
563 section
[image
->num_sections
].size
= 0x0;
564 section
[image
->num_sections
].flags
= 0;
565 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
567 section
[image
->num_sections
].base_address
= address
;
568 full_address
= address
;
573 sscanf(&lpszLine
[bytes_read
], "%2x", (u32
*)&mot
->buffer
[cooked_bytes
]);
574 cal_checksum
+= (u8
)mot
->buffer
[cooked_bytes
];
577 section
[image
->num_sections
].size
+= 1;
581 else if (record_type
>= 7 && record_type
<= 9)
583 /* S7, S8, S9 - ending records for 32, 24 and 16bit */
584 image
->num_sections
++;
586 /* copy section information */
587 image
->sections
= malloc(sizeof(image_section_t
) * image
->num_sections
);
588 for (i
= 0; i
< image
->num_sections
; i
++)
590 image
->sections
[i
].private = section
[i
].private;
591 image
->sections
[i
].base_address
= section
[i
].base_address
;
592 image
->sections
[i
].size
= section
[i
].size
;
593 image
->sections
[i
].flags
= section
[i
].flags
;
600 ERROR("unhandled S19 record type: %i", record_type
);
601 return ERROR_IMAGE_FORMAT_ERROR
;
604 /* account for checksum, will always be 0xFF */
605 sscanf(&lpszLine
[bytes_read
], "%2x", &checksum
);
606 cal_checksum
+= (u8
)checksum
;
609 if( cal_checksum
!= 0xFF )
611 /* checksum failed */
612 ERROR("incorrect record checksum found in S19 file");
613 return ERROR_IMAGE_CHECKSUM
;
617 ERROR("premature end of S19 file, no end-of-file record found");
618 return ERROR_IMAGE_FORMAT_ERROR
;
621 int image_open(image_t
*image
, char *url
, char *type_string
)
623 int retval
= ERROR_OK
;
625 if ((retval
= identify_image_type(image
, type_string
, url
)) != ERROR_OK
)
630 if (image
->type
== IMAGE_BINARY
)
632 image_binary_t
*image_binary
;
634 image_binary
= image
->type_private
= malloc(sizeof(image_binary_t
));
636 if ((retval
= fileio_open(&image_binary
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
638 strncpy(image
->error_str
, image_binary
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
639 ERROR(image
->error_str
);
643 image
->num_sections
= 1;
644 image
->sections
= malloc(sizeof(image_section_t
));
645 image
->sections
[0].base_address
= 0x0;
646 image
->sections
[0].size
= image_binary
->fileio
.size
;
647 image
->sections
[0].flags
= 0;
649 else if (image
->type
== IMAGE_IHEX
)
651 image_ihex_t
*image_ihex
;
653 image_ihex
= image
->type_private
= malloc(sizeof(image_ihex_t
));
655 if ((retval
= fileio_open(&image_ihex
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
657 strncpy(image
->error_str
, image_ihex
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
658 ERROR(image
->error_str
);
662 if ((retval
= image_ihex_buffer_complete(image
)) != ERROR_OK
)
664 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
,
665 "failed buffering IHEX image, check daemon output for additional information");
666 ERROR(image
->error_str
);
667 fileio_close(&image_ihex
->fileio
);
671 else if (image
->type
== IMAGE_ELF
)
673 image_elf_t
*image_elf
;
675 image_elf
= image
->type_private
= malloc(sizeof(image_elf_t
));
677 if ((retval
= fileio_open(&image_elf
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
679 strncpy(image
->error_str
, image_elf
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
680 ERROR(image
->error_str
);
684 if ((retval
= image_elf_read_headers(image
)) != ERROR_OK
)
686 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
,
687 "failed to read ELF headers, check daemon output for additional information");
688 ERROR(image
->error_str
);
689 fileio_close(&image_elf
->fileio
);
693 else if (image
->type
== IMAGE_MEMORY
)
695 image_memory_t
*image_memory
;
697 image
->num_sections
= 1;
698 image
->sections
= malloc(sizeof(image_section_t
));
699 image
->sections
[0].base_address
= 0x0;
700 image
->sections
[0].size
= 0xffffffff;
701 image
->sections
[0].flags
= 0;
703 image_memory
= image
->type_private
= malloc(sizeof(image_memory_t
));
705 image_memory
->target
= get_target_by_num(strtoul(url
, NULL
, 0));;
706 image_memory
->cache
= NULL
;
707 image_memory
->cache_address
= 0x0;
709 else if (image
->type
== IMAGE_SRECORD
)
711 image_mot_t
*image_mot
;
713 image_mot
= image
->type_private
= malloc(sizeof(image_mot_t
));
715 if ((retval
= fileio_open(&image_mot
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
717 strncpy(image
->error_str
, image_mot
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
718 ERROR(image
->error_str
);
722 if ((retval
= image_mot_buffer_complete(image
)) != ERROR_OK
)
724 snprintf(image
->error_str
, IMAGE_MAX_ERROR_STRING
,
725 "failed buffering S19 image, check daemon output for additional information");
726 ERROR(image
->error_str
);
727 fileio_close(&image_mot
->fileio
);
731 else if (image
->type
== IMAGE_BUILDER
)
733 image
->num_sections
= 0;
734 image
->sections
= NULL
;
735 image
->type_private
= NULL
;
738 if (image
->base_address_set
)
742 for (section
=0; section
< image
->num_sections
; section
++)
744 image
->sections
[section
].base_address
+=image
->base_address
;
746 // we're done relocating. The two statements below are mainly
747 // for documenation purposes: stop anyone from empirically
748 // thinking they should use these values henceforth.
749 image
->base_address
=0;
750 image
->base_address_set
=0;
756 int image_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
760 /* don't read past the end of a section */
761 if (offset
+ size
> image
->sections
[section
].size
)
763 DEBUG("read past end of section: 0x%8.8x + 0x%8.8x > 0x%8.8x",
764 offset
, size
, image
->sections
[section
].size
);
765 return ERROR_INVALID_ARGUMENTS
;
768 if (image
->type
== IMAGE_BINARY
)
770 image_binary_t
*image_binary
= image
->type_private
;
772 /* only one section in a plain binary */
774 return ERROR_INVALID_ARGUMENTS
;
777 if ((retval
= fileio_seek(&image_binary
->fileio
, offset
)) != ERROR_OK
)
779 strncpy(image
->error_str
, image_binary
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
783 /* return requested bytes */
784 if ((retval
= fileio_read(&image_binary
->fileio
, size
, buffer
, size_read
)) != ERROR_OK
)
786 strncpy(image
->error_str
, image_binary
->fileio
.error_str
, IMAGE_MAX_ERROR_STRING
);
790 else if (image
->type
== IMAGE_IHEX
)
792 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
794 image
->error_str
[0] = '\0';
798 else if (image
->type
== IMAGE_ELF
)
800 return image_elf_read_section(image
, section
, offset
, size
, buffer
, size_read
);
802 else if (image
->type
== IMAGE_MEMORY
)
804 image_memory_t
*image_memory
= image
->type_private
;
805 u32 address
= image
->sections
[section
].base_address
+ offset
;
809 while ((size
- *size_read
) > 0)
813 if (!image_memory
->cache
814 || (address
< image_memory
->cache_address
)
815 || (address
>= (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
)))
817 if (!image_memory
->cache
)
818 image_memory
->cache
= malloc(IMAGE_MEMORY_CACHE_SIZE
);
820 if (target_read_buffer(image_memory
->target
, address
& ~(IMAGE_MEMORY_CACHE_SIZE
- 1),
821 IMAGE_MEMORY_CACHE_SIZE
, image_memory
->cache
) != ERROR_OK
)
823 free(image_memory
->cache
);
824 image_memory
->cache
= NULL
;
825 return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE
;
827 image_memory
->cache_address
= address
& ~(IMAGE_MEMORY_CACHE_SIZE
- 1);
830 size_in_cache
= (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
) - address
;
832 memcpy(buffer
+ *size_read
,
833 image_memory
->cache
+ (address
- image_memory
->cache_address
),
834 (size_in_cache
> size
) ? size
: size_in_cache
837 *size_read
+= (size_in_cache
> size
) ? size
: size_in_cache
;
838 address
+= (size_in_cache
> size
) ? size
: size_in_cache
;
841 else if (image
->type
== IMAGE_SRECORD
)
843 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
845 image
->error_str
[0] = '\0';
849 else if (image
->type
== IMAGE_BUILDER
)
851 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
853 image
->error_str
[0] = '\0';
861 int image_add_section(image_t
*image
, u32 base
, u32 size
, int flags
, u8
*data
)
863 image_section_t
*section
;
865 /* only image builder supports adding sections */
866 if (image
->type
!= IMAGE_BUILDER
)
867 return ERROR_INVALID_ARGUMENTS
;
869 /* see if there's a previous section */
870 if (image
->num_sections
)
872 section
= &image
->sections
[image
->num_sections
- 1];
874 /* see if it's enough to extend the last section,
875 * adding data to previous sections or merging is not supported */
876 if (((section
->base_address
+ section
->size
) == base
) && (section
->flags
== flags
))
878 section
->private = realloc(section
->private, section
->size
+ size
);
879 memcpy((u8
*)section
->private + section
->size
, data
, size
);
880 section
->size
+= size
;
885 /* allocate new section */
886 image
->num_sections
++;
887 image
->sections
= realloc(image
->sections
, sizeof(image_section_t
) * image
->num_sections
);
888 section
= &image
->sections
[image
->num_sections
- 1];
889 section
->base_address
= base
;
890 section
->size
= size
;
891 section
->flags
= flags
;
892 section
->private = malloc(sizeof(u8
) * size
);
893 memcpy((u8
*)section
->private, data
, size
);
898 int image_close(image_t
*image
)
900 if (image
->type
== IMAGE_BINARY
)
902 image_binary_t
*image_binary
= image
->type_private
;
904 fileio_close(&image_binary
->fileio
);
906 else if (image
->type
== IMAGE_IHEX
)
908 image_ihex_t
*image_ihex
= image
->type_private
;
910 fileio_close(&image_ihex
->fileio
);
912 if (image_ihex
->buffer
)
914 free(image_ihex
->buffer
);
915 image_ihex
->buffer
= NULL
;
918 else if (image
->type
== IMAGE_ELF
)
920 image_elf_t
*image_elf
= image
->type_private
;
922 fileio_close(&image_elf
->fileio
);
924 if (image_elf
->header
)
926 free(image_elf
->header
);
927 image_elf
->header
= NULL
;
930 if (image_elf
->segments
)
932 free(image_elf
->segments
);
933 image_elf
->segments
= NULL
;
936 else if (image
->type
== IMAGE_MEMORY
)
938 image_memory_t
*image_memory
= image
->type_private
;
940 if (image_memory
->cache
)
942 free(image_memory
->cache
);
943 image_memory
->cache
= NULL
;
946 else if (image
->type
== IMAGE_SRECORD
)
948 image_mot_t
*image_mot
= image
->type_private
;
950 fileio_close(&image_mot
->fileio
);
952 if (image_mot
->buffer
)
954 free(image_mot
->buffer
);
955 image_mot
->buffer
= NULL
;
958 else if (image
->type
== IMAGE_BUILDER
)
962 for (i
= 0; i
< image
->num_sections
; i
++)
964 free(image
->sections
[i
].private);
965 image
->sections
[i
].private = NULL
;
969 if (image
->type_private
)
971 free(image
->type_private
);
972 image
->type_private
= NULL
;
977 free(image
->sections
);
978 image
->sections
= NULL
;
984 static u32 crc32_table
[256] = {0, 0};
986 int image_calculate_checksum(u8
* buffer
, u32 nbytes
, u32
* checksum
)
988 u32 crc
= 0xffffffff;
992 /* Initialize the CRC table and the decoding table. */
995 for (i
= 0; i
< 256; i
++)
998 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
999 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
1007 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buffer
++) & 255];
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