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
)
60 if ((retval
= fileio_read(&fileio
, 9, buffer
, &read_bytes
)) != ERROR_OK
)
62 return ERROR_FILEIO_OPERATION_FAILED
;
66 return ERROR_FILEIO_OPERATION_FAILED
;
68 fileio_close(&fileio
);
70 /* check header against known signatures */
71 if (strncmp((char*)buffer
,ELFMAG
,SELFMAG
)==0)
73 DEBUG("ELF image detected.");
74 image
->type
= IMAGE_ELF
;
76 else if ((buffer
[0]==':') /* record start byte */
77 &&(isxdigit(buffer
[1]))
78 &&(isxdigit(buffer
[2]))
79 &&(isxdigit(buffer
[3]))
80 &&(isxdigit(buffer
[4]))
81 &&(isxdigit(buffer
[5]))
82 &&(isxdigit(buffer
[6]))
83 &&(buffer
[7]=='0') /* record type : 00 -> 05 */
84 &&(buffer
[8]>='0')&&(buffer
[8]<'6'))
86 DEBUG("IHEX image detected.");
87 image
->type
= IMAGE_IHEX
;
89 else if ((buffer
[0] == 'S') /* record start byte */
90 &&(isxdigit(buffer
[1]))
91 &&(isxdigit(buffer
[2]))
92 &&(isxdigit(buffer
[3]))
93 &&(buffer
[1] >= '0') && (buffer
[1] < '9'))
95 DEBUG("S19 image detected.");
96 image
->type
= IMAGE_SRECORD
;
100 image
->type
= IMAGE_BINARY
;
106 int identify_image_type(image_t
*image
, char *type_string
, char *url
)
110 if (!strcmp(type_string
, "bin"))
112 image
->type
= IMAGE_BINARY
;
114 else if (!strcmp(type_string
, "ihex"))
116 image
->type
= IMAGE_IHEX
;
118 else if (!strcmp(type_string
, "elf"))
120 image
->type
= IMAGE_ELF
;
122 else if (!strcmp(type_string
, "mem"))
124 image
->type
= IMAGE_MEMORY
;
126 else if (!strcmp(type_string
, "s19"))
128 image
->type
= IMAGE_SRECORD
;
130 else if (!strcmp(type_string
, "build"))
132 image
->type
= IMAGE_BUILDER
;
136 return ERROR_IMAGE_TYPE_UNKNOWN
;
141 return autodetect_image_type(image
, url
);
147 int image_ihex_buffer_complete(image_t
*image
)
149 image_ihex_t
*ihex
= image
->type_private
;
150 fileio_t
*fileio
= &ihex
->fileio
;
151 u32 full_address
= 0x0;
156 /* we can't determine the number of sections that we'll have to create ahead of time,
157 * so we locally hold them until parsing is finished */
158 image_section_t section
[IMAGE_MAX_SECTIONS
];
160 ihex
->buffer
= malloc(fileio
->size
>> 1);
162 image
->num_sections
= 0;
163 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
164 section
[image
->num_sections
].base_address
= 0x0;
165 section
[image
->num_sections
].size
= 0x0;
166 section
[image
->num_sections
].flags
= 0;
168 while (fileio_fgets(fileio
, 1023, lpszLine
) == ERROR_OK
)
177 if (sscanf(&lpszLine
[bytes_read
], ":%2x%4x%2x", &count
, &address
, &record_type
) != 3)
179 return ERROR_IMAGE_FORMAT_ERROR
;
183 cal_checksum
+= (u8
)count
;
184 cal_checksum
+= (u8
)(address
>> 8);
185 cal_checksum
+= (u8
)address
;
186 cal_checksum
+= (u8
)record_type
;
188 if (record_type
== 0) /* Data Record */
190 if ((full_address
& 0xffff) != address
)
192 /* we encountered a nonconsecutive location, create a new section,
193 * unless the current section has zero size, in which case this specifies
194 * the current section's base address
196 if (section
[image
->num_sections
].size
!= 0)
198 image
->num_sections
++;
199 section
[image
->num_sections
].size
= 0x0;
200 section
[image
->num_sections
].flags
= 0;
201 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
203 section
[image
->num_sections
].base_address
=
204 (full_address
& 0xffff0000) | address
;
205 full_address
= (full_address
& 0xffff0000) | address
;
210 sscanf(&lpszLine
[bytes_read
], "%2x", (u32
*)&ihex
->buffer
[cooked_bytes
]);
211 cal_checksum
+= (u8
)ihex
->buffer
[cooked_bytes
];
214 section
[image
->num_sections
].size
+= 1;
218 else if (record_type
== 1) /* End of File Record */
220 /* finish the current section */
221 image
->num_sections
++;
223 /* copy section information */
224 image
->sections
= malloc(sizeof(image_section_t
) * image
->num_sections
);
225 for (i
= 0; i
< image
->num_sections
; i
++)
227 image
->sections
[i
].private = section
[i
].private;
228 image
->sections
[i
].base_address
= section
[i
].base_address
;
229 image
->sections
[i
].size
= section
[i
].size
;
230 image
->sections
[i
].flags
= section
[i
].flags
;
235 else if (record_type
== 2) /* Linear Address Record */
239 sscanf(&lpszLine
[bytes_read
], "%4hx", &upper_address
);
240 cal_checksum
+= (u8
)(upper_address
>> 8);
241 cal_checksum
+= (u8
)upper_address
;
244 if ((full_address
>> 4) != upper_address
)
246 /* we encountered a nonconsecutive location, create a new section,
247 * unless the current section has zero size, in which case this specifies
248 * the current section's base address
250 if (section
[image
->num_sections
].size
!= 0)
252 image
->num_sections
++;
253 section
[image
->num_sections
].size
= 0x0;
254 section
[image
->num_sections
].flags
= 0;
255 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
257 section
[image
->num_sections
].base_address
=
258 (full_address
& 0xffff) | (upper_address
<< 4);
259 full_address
= (full_address
& 0xffff) | (upper_address
<< 4);
262 else if (record_type
== 3) /* Start Segment Address Record */
266 /* "Start Segment Address Record" will not be supported */
267 /* but we must consume it, and do not create an error. */
270 sscanf(&lpszLine
[bytes_read
], "%2x", &dummy
);
271 cal_checksum
+= (u8
)dummy
;
275 else if (record_type
== 4) /* Extended Linear Address Record */
279 sscanf(&lpszLine
[bytes_read
], "%4hx", &upper_address
);
280 cal_checksum
+= (u8
)(upper_address
>> 8);
281 cal_checksum
+= (u8
)upper_address
;
284 if ((full_address
>> 16) != upper_address
)
286 /* we encountered a nonconsecutive location, create a new section,
287 * unless the current section has zero size, in which case this specifies
288 * the current section's base address
290 if (section
[image
->num_sections
].size
!= 0)
292 image
->num_sections
++;
293 section
[image
->num_sections
].size
= 0x0;
294 section
[image
->num_sections
].flags
= 0;
295 section
[image
->num_sections
].private = &ihex
->buffer
[cooked_bytes
];
297 section
[image
->num_sections
].base_address
=
298 (full_address
& 0xffff) | (upper_address
<< 16);
299 full_address
= (full_address
& 0xffff) | (upper_address
<< 16);
302 else if (record_type
== 5) /* Start Linear Address Record */
306 sscanf(&lpszLine
[bytes_read
], "%8x", &start_address
);
307 cal_checksum
+= (u8
)(start_address
>> 24);
308 cal_checksum
+= (u8
)(start_address
>> 16);
309 cal_checksum
+= (u8
)(start_address
>> 8);
310 cal_checksum
+= (u8
)start_address
;
313 image
->start_address_set
= 1;
314 image
->start_address
= be_to_h_u32((u8
*)&start_address
);
318 ERROR("unhandled IHEX record type: %i", record_type
);
319 return ERROR_IMAGE_FORMAT_ERROR
;
322 sscanf(&lpszLine
[bytes_read
], "%2x", &checksum
);
325 if ((u8
)checksum
!= (u8
)(~cal_checksum
+ 1))
327 /* checksum failed */
328 ERROR("incorrect record checksum found in IHEX file");
329 return ERROR_IMAGE_CHECKSUM
;
333 ERROR("premature end of IHEX file, no end-of-file record found");
334 return ERROR_IMAGE_FORMAT_ERROR
;
337 int image_elf_read_headers(image_t
*image
)
339 image_elf_t
*elf
= image
->type_private
;
344 elf
->header
= malloc(sizeof(Elf32_Ehdr
));
346 if ((retval
= fileio_read(&elf
->fileio
, sizeof(Elf32_Ehdr
), (u8
*)elf
->header
, &read_bytes
)) != ERROR_OK
)
348 ERROR("cannot read ELF file header, read failed");
349 return ERROR_FILEIO_OPERATION_FAILED
;
351 if (read_bytes
!= sizeof(Elf32_Ehdr
))
353 ERROR("cannot read ELF file header, only partially read");
354 return ERROR_FILEIO_OPERATION_FAILED
;
357 if (strncmp((char*)elf
->header
->e_ident
,ELFMAG
,SELFMAG
)!=0)
359 ERROR("invalid ELF file, bad magic number");
360 return ERROR_IMAGE_FORMAT_ERROR
;
362 if (elf
->header
->e_ident
[EI_CLASS
]!=ELFCLASS32
)
364 ERROR("invalid ELF file, only 32bits files are supported");
365 return ERROR_IMAGE_FORMAT_ERROR
;
369 elf
->endianness
= elf
->header
->e_ident
[EI_DATA
];
370 if ((elf
->endianness
!=ELFDATA2LSB
)
371 &&(elf
->endianness
!=ELFDATA2MSB
))
373 ERROR("invalid ELF file, unknown endianess setting");
374 return ERROR_IMAGE_FORMAT_ERROR
;
377 elf
->segment_count
= field16(elf
,elf
->header
->e_phnum
);
378 if (elf
->segment_count
==0)
380 ERROR("invalid ELF file, no program headers");
381 return ERROR_IMAGE_FORMAT_ERROR
;
385 if ((retval
= fileio_seek(&elf
->fileio
, elf
->header
->e_phoff
)) != ERROR_OK
)
387 ERROR("cannot seek to ELF program header table, read failed");
392 elf
->segments
= malloc(elf
->segment_count
*sizeof(Elf32_Phdr
));
394 if ((retval
= fileio_read(&elf
->fileio
, elf
->segment_count
*sizeof(Elf32_Phdr
), (u8
*)elf
->segments
, &read_bytes
)) != ERROR_OK
)
396 ERROR("cannot read ELF segment headers, read failed");
399 if (read_bytes
!= elf
->segment_count
*sizeof(Elf32_Phdr
))
401 ERROR("cannot read ELF segment headers, only partially read");
402 return ERROR_FILEIO_OPERATION_FAILED
;
405 /* count useful segments (loadable), ignore BSS section */
406 image
->num_sections
= 0;
407 for (i
=0;i
<elf
->segment_count
;i
++)
408 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
409 image
->num_sections
++;
410 /* alloc and fill sections array with loadable segments */
411 image
->sections
= malloc(image
->num_sections
* sizeof(image_section_t
));
412 for (i
=0,j
=0;i
<elf
->segment_count
;i
++)
414 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
416 image
->sections
[j
].size
= field32(elf
,elf
->segments
[i
].p_filesz
);
417 image
->sections
[j
].base_address
= field32(elf
,elf
->segments
[i
].p_paddr
);
418 image
->sections
[j
].private = &elf
->segments
[i
];
419 image
->sections
[j
].flags
= field32(elf
,elf
->segments
[i
].p_flags
);
424 image
->start_address_set
= 1;
425 image
->start_address
= field32(elf
,elf
->header
->e_entry
);
430 int image_elf_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
432 image_elf_t
*elf
= image
->type_private
;
433 Elf32_Phdr
*segment
= (Elf32_Phdr
*)image
->sections
[section
].private;
434 u32 read_size
,really_read
;
439 DEBUG("load segment %d at 0x%x (sz=0x%x)",section
,offset
,size
);
441 /* read initialized data in current segment if any */
442 if (offset
<field32(elf
,segment
->p_filesz
))
444 /* maximal size present in file for the current segment */
445 read_size
= MIN(size
, field32(elf
,segment
->p_filesz
)-offset
);
446 DEBUG("read elf: size = 0x%x at 0x%x",read_size
,
447 field32(elf
,segment
->p_offset
)+offset
);
448 /* read initialized area of the segment */
449 if ((retval
= fileio_seek(&elf
->fileio
, field32(elf
,segment
->p_offset
)+offset
)) != ERROR_OK
)
451 ERROR("cannot find ELF segment content, seek failed");
454 if ((retval
= fileio_read(&elf
->fileio
, read_size
, buffer
, &really_read
)) != ERROR_OK
)
456 ERROR("cannot read ELF segment content, read failed");
462 *size_read
+= read_size
;
463 /* need more data ? */
471 int image_mot_buffer_complete(image_t
*image
)
473 image_mot_t
*mot
= image
->type_private
;
474 fileio_t
*fileio
= &mot
->fileio
;
475 u32 full_address
= 0x0;
480 /* we can't determine the number of sections that we'll have to create ahead of time,
481 * so we locally hold them until parsing is finished */
482 image_section_t section
[IMAGE_MAX_SECTIONS
];
484 mot
->buffer
= malloc(fileio
->size
>> 1);
486 image
->num_sections
= 0;
487 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
488 section
[image
->num_sections
].base_address
= 0x0;
489 section
[image
->num_sections
].size
= 0x0;
490 section
[image
->num_sections
].flags
= 0;
492 while (fileio_fgets(fileio
, 1023, lpszLine
) == ERROR_OK
)
501 /* get record type and record length */
502 if (sscanf(&lpszLine
[bytes_read
], "S%1x%2x", &record_type
, &count
) != 2)
504 return ERROR_IMAGE_FORMAT_ERROR
;
508 cal_checksum
+= (u8
)count
;
510 /* skip checksum byte */
513 if (record_type
== 0)
515 /* S0 - starting record (optional) */
518 while (count
-- > 0) {
519 sscanf(&lpszLine
[bytes_read
], "%2x", &iValue
);
520 cal_checksum
+= (u8
)iValue
;
524 else if (record_type
>= 1 && record_type
<= 3)
526 switch( record_type
)
529 /* S1 - 16 bit address data record */
530 sscanf(&lpszLine
[bytes_read
], "%4x", &address
);
531 cal_checksum
+= (u8
)(address
>> 8);
532 cal_checksum
+= (u8
)address
;
538 /* S2 - 24 bit address data record */
539 sscanf(&lpszLine
[bytes_read
], "%6x", &address
);
540 cal_checksum
+= (u8
)(address
>> 16);
541 cal_checksum
+= (u8
)(address
>> 8);
542 cal_checksum
+= (u8
)address
;
548 /* S3 - 32 bit address data record */
549 sscanf(&lpszLine
[bytes_read
], "%8x", &address
);
550 cal_checksum
+= (u8
)(address
>> 24);
551 cal_checksum
+= (u8
)(address
>> 16);
552 cal_checksum
+= (u8
)(address
>> 8);
553 cal_checksum
+= (u8
)address
;
560 if (full_address
!= address
)
562 /* we encountered a nonconsecutive location, create a new section,
563 * unless the current section has zero size, in which case this specifies
564 * the current section's base address
566 if (section
[image
->num_sections
].size
!= 0)
568 image
->num_sections
++;
569 section
[image
->num_sections
].size
= 0x0;
570 section
[image
->num_sections
].flags
= 0;
571 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
573 section
[image
->num_sections
].base_address
= address
;
574 full_address
= address
;
579 sscanf(&lpszLine
[bytes_read
], "%2x", (u32
*)&mot
->buffer
[cooked_bytes
]);
580 cal_checksum
+= (u8
)mot
->buffer
[cooked_bytes
];
583 section
[image
->num_sections
].size
+= 1;
587 else if (record_type
== 5)
589 /* S5 is the data count record, we ignore it */
594 sscanf(&lpszLine
[bytes_read
], "%2x", &dummy
);
595 cal_checksum
+= (u8
)dummy
;
599 else if (record_type
>= 7 && record_type
<= 9)
601 /* S7, S8, S9 - ending records for 32, 24 and 16bit */
602 image
->num_sections
++;
604 /* copy section information */
605 image
->sections
= malloc(sizeof(image_section_t
) * image
->num_sections
);
606 for (i
= 0; i
< image
->num_sections
; i
++)
608 image
->sections
[i
].private = section
[i
].private;
609 image
->sections
[i
].base_address
= section
[i
].base_address
;
610 image
->sections
[i
].size
= section
[i
].size
;
611 image
->sections
[i
].flags
= section
[i
].flags
;
618 ERROR("unhandled S19 record type: %i", record_type
);
619 return ERROR_IMAGE_FORMAT_ERROR
;
622 /* account for checksum, will always be 0xFF */
623 sscanf(&lpszLine
[bytes_read
], "%2x", &checksum
);
624 cal_checksum
+= (u8
)checksum
;
627 if( cal_checksum
!= 0xFF )
629 /* checksum failed */
630 ERROR("incorrect record checksum found in S19 file");
631 return ERROR_IMAGE_CHECKSUM
;
635 ERROR("premature end of S19 file, no end-of-file record found");
636 return ERROR_IMAGE_FORMAT_ERROR
;
639 int image_open(image_t
*image
, char *url
, char *type_string
)
641 int retval
= ERROR_OK
;
643 if ((retval
= identify_image_type(image
, type_string
, url
)) != ERROR_OK
)
648 if (image
->type
== IMAGE_BINARY
)
650 image_binary_t
*image_binary
;
652 image_binary
= image
->type_private
= malloc(sizeof(image_binary_t
));
654 if ((retval
= fileio_open(&image_binary
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
659 image
->num_sections
= 1;
660 image
->sections
= malloc(sizeof(image_section_t
));
661 image
->sections
[0].base_address
= 0x0;
662 image
->sections
[0].size
= image_binary
->fileio
.size
;
663 image
->sections
[0].flags
= 0;
665 else if (image
->type
== IMAGE_IHEX
)
667 image_ihex_t
*image_ihex
;
669 image_ihex
= image
->type_private
= malloc(sizeof(image_ihex_t
));
671 if ((retval
= fileio_open(&image_ihex
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
676 if ((retval
= image_ihex_buffer_complete(image
)) != ERROR_OK
)
678 ERROR("failed buffering IHEX image, check daemon output for additional information");
679 fileio_close(&image_ihex
->fileio
);
683 else if (image
->type
== IMAGE_ELF
)
685 image_elf_t
*image_elf
;
687 image_elf
= image
->type_private
= malloc(sizeof(image_elf_t
));
689 if ((retval
= fileio_open(&image_elf
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
694 if ((retval
= image_elf_read_headers(image
)) != ERROR_OK
)
696 fileio_close(&image_elf
->fileio
);
700 else if (image
->type
== IMAGE_MEMORY
)
702 image_memory_t
*image_memory
;
704 image
->num_sections
= 1;
705 image
->sections
= malloc(sizeof(image_section_t
));
706 image
->sections
[0].base_address
= 0x0;
707 image
->sections
[0].size
= 0xffffffff;
708 image
->sections
[0].flags
= 0;
710 image_memory
= image
->type_private
= malloc(sizeof(image_memory_t
));
712 image_memory
->target
= get_target_by_num(strtoul(url
, NULL
, 0));;
713 image_memory
->cache
= NULL
;
714 image_memory
->cache_address
= 0x0;
716 else if (image
->type
== IMAGE_SRECORD
)
718 image_mot_t
*image_mot
;
720 image_mot
= image
->type_private
= malloc(sizeof(image_mot_t
));
722 if ((retval
= fileio_open(&image_mot
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
727 if ((retval
= image_mot_buffer_complete(image
)) != ERROR_OK
)
729 ERROR("failed buffering S19 image, check daemon output for additional information");
730 fileio_close(&image_mot
->fileio
);
734 else if (image
->type
== IMAGE_BUILDER
)
736 image
->num_sections
= 0;
737 image
->sections
= NULL
;
738 image
->type_private
= NULL
;
741 if (image
->base_address_set
)
745 for (section
=0; section
< image
->num_sections
; section
++)
747 image
->sections
[section
].base_address
+=image
->base_address
;
749 /* we're done relocating. The two statements below are mainly
750 * for documenation purposes: stop anyone from empirically
751 * thinking they should use these values henceforth. */
752 image
->base_address
=0;
753 image
->base_address_set
=0;
759 int image_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
763 /* don't read past the end of a section */
764 if (offset
+ size
> image
->sections
[section
].size
)
766 DEBUG("read past end of section: 0x%8.8x + 0x%8.8x > 0x%8.8x",
767 offset
, size
, image
->sections
[section
].size
);
768 return ERROR_INVALID_ARGUMENTS
;
771 if (image
->type
== IMAGE_BINARY
)
773 image_binary_t
*image_binary
= image
->type_private
;
775 /* only one section in a plain binary */
777 return ERROR_INVALID_ARGUMENTS
;
780 if ((retval
= fileio_seek(&image_binary
->fileio
, offset
)) != ERROR_OK
)
785 /* return requested bytes */
786 if ((retval
= fileio_read(&image_binary
->fileio
, size
, buffer
, size_read
)) != ERROR_OK
)
791 else if (image
->type
== IMAGE_IHEX
)
793 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
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
);
848 else if (image
->type
== IMAGE_BUILDER
)
850 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
859 int image_add_section(image_t
*image
, u32 base
, u32 size
, int flags
, u8
*data
)
861 image_section_t
*section
;
863 /* only image builder supports adding sections */
864 if (image
->type
!= IMAGE_BUILDER
)
865 return ERROR_INVALID_ARGUMENTS
;
867 /* see if there's a previous section */
868 if (image
->num_sections
)
870 section
= &image
->sections
[image
->num_sections
- 1];
872 /* see if it's enough to extend the last section,
873 * adding data to previous sections or merging is not supported */
874 if (((section
->base_address
+ section
->size
) == base
) && (section
->flags
== flags
))
876 section
->private = realloc(section
->private, section
->size
+ size
);
877 memcpy((u8
*)section
->private + section
->size
, data
, size
);
878 section
->size
+= size
;
883 /* allocate new section */
884 image
->num_sections
++;
885 image
->sections
= realloc(image
->sections
, sizeof(image_section_t
) * image
->num_sections
);
886 section
= &image
->sections
[image
->num_sections
- 1];
887 section
->base_address
= base
;
888 section
->size
= size
;
889 section
->flags
= flags
;
890 section
->private = malloc(sizeof(u8
) * size
);
891 memcpy((u8
*)section
->private, data
, size
);
896 int image_close(image_t
*image
)
898 if (image
->type
== IMAGE_BINARY
)
900 image_binary_t
*image_binary
= image
->type_private
;
902 fileio_close(&image_binary
->fileio
);
904 else if (image
->type
== IMAGE_IHEX
)
906 image_ihex_t
*image_ihex
= image
->type_private
;
908 fileio_close(&image_ihex
->fileio
);
910 if (image_ihex
->buffer
)
912 free(image_ihex
->buffer
);
913 image_ihex
->buffer
= NULL
;
916 else if (image
->type
== IMAGE_ELF
)
918 image_elf_t
*image_elf
= image
->type_private
;
920 fileio_close(&image_elf
->fileio
);
922 if (image_elf
->header
)
924 free(image_elf
->header
);
925 image_elf
->header
= NULL
;
928 if (image_elf
->segments
)
930 free(image_elf
->segments
);
931 image_elf
->segments
= NULL
;
934 else if (image
->type
== IMAGE_MEMORY
)
936 image_memory_t
*image_memory
= image
->type_private
;
938 if (image_memory
->cache
)
940 free(image_memory
->cache
);
941 image_memory
->cache
= NULL
;
944 else if (image
->type
== IMAGE_SRECORD
)
946 image_mot_t
*image_mot
= image
->type_private
;
948 fileio_close(&image_mot
->fileio
);
950 if (image_mot
->buffer
)
952 free(image_mot
->buffer
);
953 image_mot
->buffer
= NULL
;
956 else if (image
->type
== IMAGE_BUILDER
)
960 for (i
= 0; i
< image
->num_sections
; i
++)
962 free(image
->sections
[i
].private);
963 image
->sections
[i
].private = NULL
;
967 if (image
->type_private
)
969 free(image
->type_private
);
970 image
->type_private
= NULL
;
975 free(image
->sections
);
976 image
->sections
= NULL
;
982 static u32 crc32_table
[256] = {0, 0};
984 int image_calculate_checksum(u8
* buffer
, u32 nbytes
, u32
* checksum
)
986 u32 crc
= 0xffffffff;
990 /* Initialize the CRC table and the decoding table. */
993 for (i
= 0; i
< 256; i
++)
996 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
997 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
1005 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buffer
++) & 255];
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