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
;
384 elf
->segments
= malloc(elf
->segment_count
*sizeof(Elf32_Phdr
));
386 if ((retval
= fileio_read(&elf
->fileio
, elf
->segment_count
*sizeof(Elf32_Phdr
), (u8
*)elf
->segments
, &read_bytes
)) != ERROR_OK
)
388 ERROR("cannot read ELF segment headers, read failed");
391 if (read_bytes
!= elf
->segment_count
*sizeof(Elf32_Phdr
))
393 ERROR("cannot read ELF segment headers, only partially read");
394 return ERROR_FILEIO_OPERATION_FAILED
;
397 /* count useful segments (loadable), ignore BSS section */
398 image
->num_sections
= 0;
399 for (i
=0;i
<elf
->segment_count
;i
++)
400 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
401 image
->num_sections
++;
402 /* alloc and fill sections array with loadable segments */
403 image
->sections
= malloc(image
->num_sections
* sizeof(image_section_t
));
404 for (i
=0,j
=0;i
<elf
->segment_count
;i
++)
406 if ((field32(elf
, elf
->segments
[i
].p_type
) == PT_LOAD
) && (field32(elf
, elf
->segments
[i
].p_filesz
) != 0))
408 image
->sections
[j
].size
= field32(elf
,elf
->segments
[i
].p_filesz
);
409 image
->sections
[j
].base_address
= field32(elf
,elf
->segments
[i
].p_paddr
);
410 image
->sections
[j
].private = &elf
->segments
[i
];
411 image
->sections
[j
].flags
= field32(elf
,elf
->segments
[i
].p_flags
);
416 image
->start_address_set
= 1;
417 image
->start_address
= field32(elf
,elf
->header
->e_entry
);
422 int image_elf_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
424 image_elf_t
*elf
= image
->type_private
;
425 Elf32_Phdr
*segment
= (Elf32_Phdr
*)image
->sections
[section
].private;
426 u32 read_size
,really_read
;
431 DEBUG("load segment %d at 0x%x (sz=0x%x)",section
,offset
,size
);
433 /* read initialized data in current segment if any */
434 if (offset
<field32(elf
,segment
->p_filesz
))
436 /* maximal size present in file for the current segment */
437 read_size
= MIN(size
, field32(elf
,segment
->p_filesz
)-offset
);
438 DEBUG("read elf: size = 0x%x at 0x%x",read_size
,
439 field32(elf
,segment
->p_offset
)+offset
);
440 /* read initialized area of the segment */
441 if ((retval
= fileio_seek(&elf
->fileio
, field32(elf
,segment
->p_offset
)+offset
)) != ERROR_OK
)
443 ERROR("cannot find ELF segment content, seek failed");
446 if ((retval
= fileio_read(&elf
->fileio
, read_size
, buffer
, &really_read
)) != ERROR_OK
)
448 ERROR("cannot read ELF segment content, read failed");
454 *size_read
+= read_size
;
455 /* need more data ? */
463 int image_mot_buffer_complete(image_t
*image
)
465 image_mot_t
*mot
= image
->type_private
;
466 fileio_t
*fileio
= &mot
->fileio
;
467 u32 full_address
= 0x0;
472 /* we can't determine the number of sections that we'll have to create ahead of time,
473 * so we locally hold them until parsing is finished */
474 image_section_t section
[IMAGE_MAX_SECTIONS
];
476 mot
->buffer
= malloc(fileio
->size
>> 1);
478 image
->num_sections
= 0;
479 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
480 section
[image
->num_sections
].base_address
= 0x0;
481 section
[image
->num_sections
].size
= 0x0;
482 section
[image
->num_sections
].flags
= 0;
484 while (fileio_fgets(fileio
, 1023, lpszLine
) == ERROR_OK
)
493 /* get record type and record length */
494 if (sscanf(&lpszLine
[bytes_read
], "S%1x%2x", &record_type
, &count
) != 2)
496 return ERROR_IMAGE_FORMAT_ERROR
;
500 cal_checksum
+= (u8
)count
;
502 /* skip checksum byte */
505 if (record_type
== 0)
507 /* S0 - starting record (optional) */
510 while (count
-- > 0) {
511 sscanf(&lpszLine
[bytes_read
], "%2x", &iValue
);
512 cal_checksum
+= (u8
)iValue
;
516 else if (record_type
>= 1 && record_type
<= 3)
518 switch( record_type
)
521 /* S1 - 16 bit address data record */
522 sscanf(&lpszLine
[bytes_read
], "%4x", &address
);
523 cal_checksum
+= (u8
)(address
>> 8);
524 cal_checksum
+= (u8
)address
;
530 /* S2 - 24 bit address data record */
531 sscanf(&lpszLine
[bytes_read
], "%6x", &address
);
532 cal_checksum
+= (u8
)(address
>> 16);
533 cal_checksum
+= (u8
)(address
>> 8);
534 cal_checksum
+= (u8
)address
;
540 /* S3 - 32 bit address data record */
541 sscanf(&lpszLine
[bytes_read
], "%8x", &address
);
542 cal_checksum
+= (u8
)(address
>> 24);
543 cal_checksum
+= (u8
)(address
>> 16);
544 cal_checksum
+= (u8
)(address
>> 8);
545 cal_checksum
+= (u8
)address
;
552 if (full_address
!= address
)
554 /* we encountered a nonconsecutive location, create a new section,
555 * unless the current section has zero size, in which case this specifies
556 * the current section's base address
558 if (section
[image
->num_sections
].size
!= 0)
560 image
->num_sections
++;
561 section
[image
->num_sections
].size
= 0x0;
562 section
[image
->num_sections
].flags
= 0;
563 section
[image
->num_sections
].private = &mot
->buffer
[cooked_bytes
];
565 section
[image
->num_sections
].base_address
= address
;
566 full_address
= address
;
571 sscanf(&lpszLine
[bytes_read
], "%2x", (u32
*)&mot
->buffer
[cooked_bytes
]);
572 cal_checksum
+= (u8
)mot
->buffer
[cooked_bytes
];
575 section
[image
->num_sections
].size
+= 1;
579 else if (record_type
== 5)
581 /* S5 is the data count record, we ignore it */
586 sscanf(&lpszLine
[bytes_read
], "%2x", &dummy
);
587 cal_checksum
+= (u8
)dummy
;
591 else if (record_type
>= 7 && record_type
<= 9)
593 /* S7, S8, S9 - ending records for 32, 24 and 16bit */
594 image
->num_sections
++;
596 /* copy section information */
597 image
->sections
= malloc(sizeof(image_section_t
) * image
->num_sections
);
598 for (i
= 0; i
< image
->num_sections
; i
++)
600 image
->sections
[i
].private = section
[i
].private;
601 image
->sections
[i
].base_address
= section
[i
].base_address
;
602 image
->sections
[i
].size
= section
[i
].size
;
603 image
->sections
[i
].flags
= section
[i
].flags
;
610 ERROR("unhandled S19 record type: %i", record_type
);
611 return ERROR_IMAGE_FORMAT_ERROR
;
614 /* account for checksum, will always be 0xFF */
615 sscanf(&lpszLine
[bytes_read
], "%2x", &checksum
);
616 cal_checksum
+= (u8
)checksum
;
619 if( cal_checksum
!= 0xFF )
621 /* checksum failed */
622 ERROR("incorrect record checksum found in S19 file");
623 return ERROR_IMAGE_CHECKSUM
;
627 ERROR("premature end of S19 file, no end-of-file record found");
628 return ERROR_IMAGE_FORMAT_ERROR
;
631 int image_open(image_t
*image
, char *url
, char *type_string
)
633 int retval
= ERROR_OK
;
635 if ((retval
= identify_image_type(image
, type_string
, url
)) != ERROR_OK
)
640 if (image
->type
== IMAGE_BINARY
)
642 image_binary_t
*image_binary
;
644 image_binary
= image
->type_private
= malloc(sizeof(image_binary_t
));
646 if ((retval
= fileio_open(&image_binary
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
651 image
->num_sections
= 1;
652 image
->sections
= malloc(sizeof(image_section_t
));
653 image
->sections
[0].base_address
= 0x0;
654 image
->sections
[0].size
= image_binary
->fileio
.size
;
655 image
->sections
[0].flags
= 0;
657 else if (image
->type
== IMAGE_IHEX
)
659 image_ihex_t
*image_ihex
;
661 image_ihex
= image
->type_private
= malloc(sizeof(image_ihex_t
));
663 if ((retval
= fileio_open(&image_ihex
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
668 if ((retval
= image_ihex_buffer_complete(image
)) != ERROR_OK
)
670 ERROR("failed buffering IHEX image, check daemon output for additional information");
671 fileio_close(&image_ihex
->fileio
);
675 else if (image
->type
== IMAGE_ELF
)
677 image_elf_t
*image_elf
;
679 image_elf
= image
->type_private
= malloc(sizeof(image_elf_t
));
681 if ((retval
= fileio_open(&image_elf
->fileio
, url
, FILEIO_READ
, FILEIO_BINARY
)) != ERROR_OK
)
686 if ((retval
= image_elf_read_headers(image
)) != ERROR_OK
)
688 fileio_close(&image_elf
->fileio
);
692 else if (image
->type
== IMAGE_MEMORY
)
694 image_memory_t
*image_memory
;
696 image
->num_sections
= 1;
697 image
->sections
= malloc(sizeof(image_section_t
));
698 image
->sections
[0].base_address
= 0x0;
699 image
->sections
[0].size
= 0xffffffff;
700 image
->sections
[0].flags
= 0;
702 image_memory
= image
->type_private
= malloc(sizeof(image_memory_t
));
704 image_memory
->target
= get_target_by_num(strtoul(url
, NULL
, 0));;
705 image_memory
->cache
= NULL
;
706 image_memory
->cache_address
= 0x0;
708 else if (image
->type
== IMAGE_SRECORD
)
710 image_mot_t
*image_mot
;
712 image_mot
= image
->type_private
= malloc(sizeof(image_mot_t
));
714 if ((retval
= fileio_open(&image_mot
->fileio
, url
, FILEIO_READ
, FILEIO_TEXT
)) != ERROR_OK
)
719 if ((retval
= image_mot_buffer_complete(image
)) != ERROR_OK
)
721 ERROR("failed buffering S19 image, check daemon output for additional information");
722 fileio_close(&image_mot
->fileio
);
726 else if (image
->type
== IMAGE_BUILDER
)
728 image
->num_sections
= 0;
729 image
->sections
= NULL
;
730 image
->type_private
= NULL
;
733 if (image
->base_address_set
)
737 for (section
=0; section
< image
->num_sections
; section
++)
739 image
->sections
[section
].base_address
+=image
->base_address
;
741 /* we're done relocating. The two statements below are mainly
742 * for documenation purposes: stop anyone from empirically
743 * thinking they should use these values henceforth. */
744 image
->base_address
=0;
745 image
->base_address_set
=0;
751 int image_read_section(image_t
*image
, int section
, u32 offset
, u32 size
, u8
*buffer
, u32
*size_read
)
755 /* don't read past the end of a section */
756 if (offset
+ size
> image
->sections
[section
].size
)
758 DEBUG("read past end of section: 0x%8.8x + 0x%8.8x > 0x%8.8x",
759 offset
, size
, image
->sections
[section
].size
);
760 return ERROR_INVALID_ARGUMENTS
;
763 if (image
->type
== IMAGE_BINARY
)
765 image_binary_t
*image_binary
= image
->type_private
;
767 /* only one section in a plain binary */
769 return ERROR_INVALID_ARGUMENTS
;
772 if ((retval
= fileio_seek(&image_binary
->fileio
, offset
)) != ERROR_OK
)
777 /* return requested bytes */
778 if ((retval
= fileio_read(&image_binary
->fileio
, size
, buffer
, size_read
)) != ERROR_OK
)
783 else if (image
->type
== IMAGE_IHEX
)
785 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
790 else if (image
->type
== IMAGE_ELF
)
792 return image_elf_read_section(image
, section
, offset
, size
, buffer
, size_read
);
794 else if (image
->type
== IMAGE_MEMORY
)
796 image_memory_t
*image_memory
= image
->type_private
;
797 u32 address
= image
->sections
[section
].base_address
+ offset
;
801 while ((size
- *size_read
) > 0)
805 if (!image_memory
->cache
806 || (address
< image_memory
->cache_address
)
807 || (address
>= (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
)))
809 if (!image_memory
->cache
)
810 image_memory
->cache
= malloc(IMAGE_MEMORY_CACHE_SIZE
);
812 if (target_read_buffer(image_memory
->target
, address
& ~(IMAGE_MEMORY_CACHE_SIZE
- 1),
813 IMAGE_MEMORY_CACHE_SIZE
, image_memory
->cache
) != ERROR_OK
)
815 free(image_memory
->cache
);
816 image_memory
->cache
= NULL
;
817 return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE
;
819 image_memory
->cache_address
= address
& ~(IMAGE_MEMORY_CACHE_SIZE
- 1);
822 size_in_cache
= (image_memory
->cache_address
+ IMAGE_MEMORY_CACHE_SIZE
) - address
;
824 memcpy(buffer
+ *size_read
,
825 image_memory
->cache
+ (address
- image_memory
->cache_address
),
826 (size_in_cache
> size
) ? size
: size_in_cache
829 *size_read
+= (size_in_cache
> size
) ? size
: size_in_cache
;
830 address
+= (size_in_cache
> size
) ? size
: size_in_cache
;
833 else if (image
->type
== IMAGE_SRECORD
)
835 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
840 else if (image
->type
== IMAGE_BUILDER
)
842 memcpy(buffer
, (u8
*)image
->sections
[section
].private + offset
, size
);
851 int image_add_section(image_t
*image
, u32 base
, u32 size
, int flags
, u8
*data
)
853 image_section_t
*section
;
855 /* only image builder supports adding sections */
856 if (image
->type
!= IMAGE_BUILDER
)
857 return ERROR_INVALID_ARGUMENTS
;
859 /* see if there's a previous section */
860 if (image
->num_sections
)
862 section
= &image
->sections
[image
->num_sections
- 1];
864 /* see if it's enough to extend the last section,
865 * adding data to previous sections or merging is not supported */
866 if (((section
->base_address
+ section
->size
) == base
) && (section
->flags
== flags
))
868 section
->private = realloc(section
->private, section
->size
+ size
);
869 memcpy((u8
*)section
->private + section
->size
, data
, size
);
870 section
->size
+= size
;
875 /* allocate new section */
876 image
->num_sections
++;
877 image
->sections
= realloc(image
->sections
, sizeof(image_section_t
) * image
->num_sections
);
878 section
= &image
->sections
[image
->num_sections
- 1];
879 section
->base_address
= base
;
880 section
->size
= size
;
881 section
->flags
= flags
;
882 section
->private = malloc(sizeof(u8
) * size
);
883 memcpy((u8
*)section
->private, data
, size
);
888 int image_close(image_t
*image
)
890 if (image
->type
== IMAGE_BINARY
)
892 image_binary_t
*image_binary
= image
->type_private
;
894 fileio_close(&image_binary
->fileio
);
896 else if (image
->type
== IMAGE_IHEX
)
898 image_ihex_t
*image_ihex
= image
->type_private
;
900 fileio_close(&image_ihex
->fileio
);
902 if (image_ihex
->buffer
)
904 free(image_ihex
->buffer
);
905 image_ihex
->buffer
= NULL
;
908 else if (image
->type
== IMAGE_ELF
)
910 image_elf_t
*image_elf
= image
->type_private
;
912 fileio_close(&image_elf
->fileio
);
914 if (image_elf
->header
)
916 free(image_elf
->header
);
917 image_elf
->header
= NULL
;
920 if (image_elf
->segments
)
922 free(image_elf
->segments
);
923 image_elf
->segments
= NULL
;
926 else if (image
->type
== IMAGE_MEMORY
)
928 image_memory_t
*image_memory
= image
->type_private
;
930 if (image_memory
->cache
)
932 free(image_memory
->cache
);
933 image_memory
->cache
= NULL
;
936 else if (image
->type
== IMAGE_SRECORD
)
938 image_mot_t
*image_mot
= image
->type_private
;
940 fileio_close(&image_mot
->fileio
);
942 if (image_mot
->buffer
)
944 free(image_mot
->buffer
);
945 image_mot
->buffer
= NULL
;
948 else if (image
->type
== IMAGE_BUILDER
)
952 for (i
= 0; i
< image
->num_sections
; i
++)
954 free(image
->sections
[i
].private);
955 image
->sections
[i
].private = NULL
;
959 if (image
->type_private
)
961 free(image
->type_private
);
962 image
->type_private
= NULL
;
967 free(image
->sections
);
968 image
->sections
= NULL
;
974 static u32 crc32_table
[256] = {0, 0};
976 int image_calculate_checksum(u8
* buffer
, u32 nbytes
, u32
* checksum
)
978 u32 crc
= 0xffffffff;
982 /* Initialize the CRC table and the decoding table. */
985 for (i
= 0; i
< 256; i
++)
988 for (c
= i
<< 24, j
= 8; j
> 0; --j
)
989 c
= c
& 0x80000000 ? (c
<< 1) ^ 0x04c11db7 : (c
<< 1);
997 crc
= (crc
<< 8) ^ crc32_table
[((crc
>> 24) ^ *buffer
++) & 255];
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