1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
36 #include "replacements.h"
42 /* convert ELF header field to host endianness */
43 #define field16(elf,field)\
44 ((elf->endianness==ELFDATA2LSB)? \
45 le_to_h_u16((u8*)&field):be_to_h_u16((u8*)&field))
47 #define field32(elf,field)\
48 ((elf->endianness==ELFDATA2LSB)? \
49 le_to_h_u32((u8*)&field):be_to_h_u32((u8*)&field))
51 static int autodetect_image_type(image_t *image, char *url)
58 /* read the first 4 bytes of image */
59 if ((retval = fileio_open(&fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK)
63 retval = fileio_read(&fileio, 9, buffer, &read_bytes);
69 retval=ERROR_FILEIO_OPERATION_FAILED;
72 fileio_close(&fileio);
77 /* check header against known signatures */
78 if (strncmp((char*)buffer,ELFMAG,SELFMAG)==0)
80 LOG_DEBUG("ELF image detected.");
81 image->type = IMAGE_ELF;
83 else if ((buffer[0]==':') /* record start byte */
84 &&(isxdigit(buffer[1]))
85 &&(isxdigit(buffer[2]))
86 &&(isxdigit(buffer[3]))
87 &&(isxdigit(buffer[4]))
88 &&(isxdigit(buffer[5]))
89 &&(isxdigit(buffer[6]))
90 &&(buffer[7]=='0') /* record type : 00 -> 05 */
91 &&(buffer[8]>='0')&&(buffer[8]<'6'))
93 LOG_DEBUG("IHEX image detected.");
94 image->type = IMAGE_IHEX;
96 else if ((buffer[0] == 'S') /* record start byte */
97 &&(isxdigit(buffer[1]))
98 &&(isxdigit(buffer[2]))
99 &&(isxdigit(buffer[3]))
100 &&(buffer[1] >= '0') && (buffer[1] < '9'))
102 LOG_DEBUG("S19 image detected.");
103 image->type = IMAGE_SRECORD;
107 image->type = IMAGE_BINARY;
113 int identify_image_type(image_t *image, char *type_string, char *url)
117 if (!strcmp(type_string, "bin"))
119 image->type = IMAGE_BINARY;
121 else if (!strcmp(type_string, "ihex"))
123 image->type = IMAGE_IHEX;
125 else if (!strcmp(type_string, "elf"))
127 image->type = IMAGE_ELF;
129 else if (!strcmp(type_string, "mem"))
131 image->type = IMAGE_MEMORY;
133 else if (!strcmp(type_string, "s19"))
135 image->type = IMAGE_SRECORD;
137 else if (!strcmp(type_string, "build"))
139 image->type = IMAGE_BUILDER;
143 return ERROR_IMAGE_TYPE_UNKNOWN;
148 return autodetect_image_type(image, url);
154 int image_ihex_buffer_complete(image_t *image)
156 image_ihex_t *ihex = image->type_private;
157 fileio_t *fileio = &ihex->fileio;
158 u32 full_address = 0x0;
163 /* we can't determine the number of sections that we'll have to create ahead of time,
164 * so we locally hold them until parsing is finished */
165 image_section_t section[IMAGE_MAX_SECTIONS];
167 ihex->buffer = malloc(fileio->size >> 1);
169 image->num_sections = 0;
170 section[image->num_sections].private = &ihex->buffer[cooked_bytes];
171 section[image->num_sections].base_address = 0x0;
172 section[image->num_sections].size = 0x0;
173 section[image->num_sections].flags = 0;
175 while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
184 if (sscanf(&lpszLine[bytes_read], ":%2x%4x%2x", &count, &address, &record_type) != 3)
186 return ERROR_IMAGE_FORMAT_ERROR;
190 cal_checksum += (u8)count;
191 cal_checksum += (u8)(address >> 8);
192 cal_checksum += (u8)address;
193 cal_checksum += (u8)record_type;
195 if (record_type == 0) /* Data Record */
197 if ((full_address & 0xffff) != address)
199 /* we encountered a nonconsecutive location, create a new section,
200 * unless the current section has zero size, in which case this specifies
201 * the current section's base address
203 if (section[image->num_sections].size != 0)
205 image->num_sections++;
206 section[image->num_sections].size = 0x0;
207 section[image->num_sections].flags = 0;
208 section[image->num_sections].private = &ihex->buffer[cooked_bytes];
210 section[image->num_sections].base_address =
211 (full_address & 0xffff0000) | address;
212 full_address = (full_address & 0xffff0000) | address;
217 sscanf(&lpszLine[bytes_read], "%2x", (u32*)&ihex->buffer[cooked_bytes]);
218 cal_checksum += (u8)ihex->buffer[cooked_bytes];
221 section[image->num_sections].size += 1;
225 else if (record_type == 1) /* End of File Record */
227 /* finish the current section */
228 image->num_sections++;
230 /* copy section information */
231 image->sections = malloc(sizeof(image_section_t) * image->num_sections);
232 for (i = 0; i < image->num_sections; i++)
234 image->sections[i].private = section[i].private;
235 image->sections[i].base_address = section[i].base_address;
236 image->sections[i].size = section[i].size;
237 image->sections[i].flags = section[i].flags;
242 else if (record_type == 2) /* Linear Address Record */
246 sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
247 cal_checksum += (u8)(upper_address >> 8);
248 cal_checksum += (u8)upper_address;
251 if ((full_address >> 4) != upper_address)
253 /* we encountered a nonconsecutive location, create a new section,
254 * unless the current section has zero size, in which case this specifies
255 * the current section's base address
257 if (section[image->num_sections].size != 0)
259 image->num_sections++;
260 section[image->num_sections].size = 0x0;
261 section[image->num_sections].flags = 0;
262 section[image->num_sections].private = &ihex->buffer[cooked_bytes];
264 section[image->num_sections].base_address =
265 (full_address & 0xffff) | (upper_address << 4);
266 full_address = (full_address & 0xffff) | (upper_address << 4);
269 else if (record_type == 3) /* Start Segment Address Record */
273 /* "Start Segment Address Record" will not be supported */
274 /* but we must consume it, and do not create an error. */
277 sscanf(&lpszLine[bytes_read], "%2x", &dummy);
278 cal_checksum += (u8)dummy;
282 else if (record_type == 4) /* Extended Linear Address Record */
286 sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
287 cal_checksum += (u8)(upper_address >> 8);
288 cal_checksum += (u8)upper_address;
291 if ((full_address >> 16) != upper_address)
293 /* we encountered a nonconsecutive location, create a new section,
294 * unless the current section has zero size, in which case this specifies
295 * the current section's base address
297 if (section[image->num_sections].size != 0)
299 image->num_sections++;
300 section[image->num_sections].size = 0x0;
301 section[image->num_sections].flags = 0;
302 section[image->num_sections].private = &ihex->buffer[cooked_bytes];
304 section[image->num_sections].base_address =
305 (full_address & 0xffff) | (upper_address << 16);
306 full_address = (full_address & 0xffff) | (upper_address << 16);
309 else if (record_type == 5) /* Start Linear Address Record */
313 sscanf(&lpszLine[bytes_read], "%8x", &start_address);
314 cal_checksum += (u8)(start_address >> 24);
315 cal_checksum += (u8)(start_address >> 16);
316 cal_checksum += (u8)(start_address >> 8);
317 cal_checksum += (u8)start_address;
320 image->start_address_set = 1;
321 image->start_address = be_to_h_u32((u8*)&start_address);
325 LOG_ERROR("unhandled IHEX record type: %i", record_type);
326 return ERROR_IMAGE_FORMAT_ERROR;
329 sscanf(&lpszLine[bytes_read], "%2x", &checksum);
332 if ((u8)checksum != (u8)(~cal_checksum + 1))
334 /* checksum failed */
335 LOG_ERROR("incorrect record checksum found in IHEX file");
336 return ERROR_IMAGE_CHECKSUM;
340 LOG_ERROR("premature end of IHEX file, no end-of-file record found");
341 return ERROR_IMAGE_FORMAT_ERROR;
344 int image_elf_read_headers(image_t *image)
346 image_elf_t *elf = image->type_private;
351 elf->header = malloc(sizeof(Elf32_Ehdr));
353 if(elf->header == NULL)
355 LOG_ERROR("insufficient memory to perform operation ");
356 return ERROR_FILEIO_OPERATION_FAILED;
359 if ((retval = fileio_read(&elf->fileio, sizeof(Elf32_Ehdr), (u8*)elf->header, &read_bytes)) != ERROR_OK)
361 LOG_ERROR("cannot read ELF file header, read failed");
362 return ERROR_FILEIO_OPERATION_FAILED;
364 if (read_bytes != sizeof(Elf32_Ehdr))
366 LOG_ERROR("cannot read ELF file header, only partially read");
367 return ERROR_FILEIO_OPERATION_FAILED;
370 if (strncmp((char*)elf->header->e_ident,ELFMAG,SELFMAG)!=0)
372 LOG_ERROR("invalid ELF file, bad magic number");
373 return ERROR_IMAGE_FORMAT_ERROR;
375 if (elf->header->e_ident[EI_CLASS]!=ELFCLASS32)
377 LOG_ERROR("invalid ELF file, only 32bits files are supported");
378 return ERROR_IMAGE_FORMAT_ERROR;
382 elf->endianness = elf->header->e_ident[EI_DATA];
383 if ((elf->endianness!=ELFDATA2LSB)
384 &&(elf->endianness!=ELFDATA2MSB))
386 LOG_ERROR("invalid ELF file, unknown endianess setting");
387 return ERROR_IMAGE_FORMAT_ERROR;
390 elf->segment_count = field16(elf,elf->header->e_phnum);
391 if (elf->segment_count==0)
393 LOG_ERROR("invalid ELF file, no program headers");
394 return ERROR_IMAGE_FORMAT_ERROR;
397 if ((retval = fileio_seek(&elf->fileio, field32(elf,elf->header->e_phoff))) != ERROR_OK)
399 LOG_ERROR("cannot seek to ELF program header table, read failed");
403 elf->segments = malloc(elf->segment_count*sizeof(Elf32_Phdr));
404 if(elf->segments == NULL)
406 LOG_ERROR("insufficient memory to perform operation ");
407 return ERROR_FILEIO_OPERATION_FAILED;
410 if ((retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr), (u8*)elf->segments, &read_bytes)) != ERROR_OK)
412 LOG_ERROR("cannot read ELF segment headers, read failed");
415 if (read_bytes != elf->segment_count*sizeof(Elf32_Phdr))
417 LOG_ERROR("cannot read ELF segment headers, only partially read");
418 return ERROR_FILEIO_OPERATION_FAILED;
421 /* count useful segments (loadable), ignore BSS section */
422 image->num_sections = 0;
423 for (i=0;i<elf->segment_count;i++)
424 if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0))
425 image->num_sections++;
426 /* alloc and fill sections array with loadable segments */
427 image->sections = malloc(image->num_sections * sizeof(image_section_t));
428 for (i=0,j=0;i<elf->segment_count;i++)
430 if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0))
432 image->sections[j].size = field32(elf,elf->segments[i].p_filesz);
433 image->sections[j].base_address = field32(elf,elf->segments[i].p_paddr);
434 image->sections[j].private = &elf->segments[i];
435 image->sections[j].flags = field32(elf,elf->segments[i].p_flags);
440 image->start_address_set = 1;
441 image->start_address = field32(elf,elf->header->e_entry);
446 int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read)
448 image_elf_t *elf = image->type_private;
449 Elf32_Phdr *segment = (Elf32_Phdr *)image->sections[section].private;
450 u32 read_size,really_read;
455 LOG_DEBUG("load segment %d at 0x%x (sz=0x%x)",section,offset,size);
457 /* read initialized data in current segment if any */
458 if (offset<field32(elf,segment->p_filesz))
460 /* maximal size present in file for the current segment */
461 read_size = MIN(size, field32(elf,segment->p_filesz)-offset);
462 LOG_DEBUG("read elf: size = 0x%x at 0x%x",read_size,
463 field32(elf,segment->p_offset)+offset);
464 /* read initialized area of the segment */
465 if ((retval = fileio_seek(&elf->fileio, field32(elf,segment->p_offset)+offset)) != ERROR_OK)
467 LOG_ERROR("cannot find ELF segment content, seek failed");
470 if ((retval = fileio_read(&elf->fileio, read_size, buffer, &really_read)) != ERROR_OK)
472 LOG_ERROR("cannot read ELF segment content, read failed");
478 *size_read += read_size;
479 /* need more data ? */
487 int image_mot_buffer_complete(image_t *image)
489 image_mot_t *mot = image->type_private;
490 fileio_t *fileio = &mot->fileio;
491 u32 full_address = 0x0;
496 /* we can't determine the number of sections that we'll have to create ahead of time,
497 * so we locally hold them until parsing is finished */
498 image_section_t section[IMAGE_MAX_SECTIONS];
500 mot->buffer = malloc(fileio->size >> 1);
502 image->num_sections = 0;
503 section[image->num_sections].private = &mot->buffer[cooked_bytes];
504 section[image->num_sections].base_address = 0x0;
505 section[image->num_sections].size = 0x0;
506 section[image->num_sections].flags = 0;
508 while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
517 /* get record type and record length */
518 if (sscanf(&lpszLine[bytes_read], "S%1x%2x", &record_type, &count) != 2)
520 return ERROR_IMAGE_FORMAT_ERROR;
524 cal_checksum += (u8)count;
526 /* skip checksum byte */
529 if (record_type == 0)
531 /* S0 - starting record (optional) */
534 while (count-- > 0) {
535 sscanf(&lpszLine[bytes_read], "%2x", &iValue);
536 cal_checksum += (u8)iValue;
540 else if (record_type >= 1 && record_type <= 3)
542 switch( record_type )
545 /* S1 - 16 bit address data record */
546 sscanf(&lpszLine[bytes_read], "%4x", &address);
547 cal_checksum += (u8)(address >> 8);
548 cal_checksum += (u8)address;
554 /* S2 - 24 bit address data record */
555 sscanf(&lpszLine[bytes_read], "%6x", &address);
556 cal_checksum += (u8)(address >> 16);
557 cal_checksum += (u8)(address >> 8);
558 cal_checksum += (u8)address;
564 /* S3 - 32 bit address data record */
565 sscanf(&lpszLine[bytes_read], "%8x", &address);
566 cal_checksum += (u8)(address >> 24);
567 cal_checksum += (u8)(address >> 16);
568 cal_checksum += (u8)(address >> 8);
569 cal_checksum += (u8)address;
576 if (full_address != address)
578 /* we encountered a nonconsecutive location, create a new section,
579 * unless the current section has zero size, in which case this specifies
580 * the current section's base address
582 if (section[image->num_sections].size != 0)
584 image->num_sections++;
585 section[image->num_sections].size = 0x0;
586 section[image->num_sections].flags = 0;
587 section[image->num_sections].private = &mot->buffer[cooked_bytes];
589 section[image->num_sections].base_address = address;
590 full_address = address;
595 sscanf(&lpszLine[bytes_read], "%2x", (u32*)&mot->buffer[cooked_bytes]);
596 cal_checksum += (u8)mot->buffer[cooked_bytes];
599 section[image->num_sections].size += 1;
603 else if (record_type == 5)
605 /* S5 is the data count record, we ignore it */
610 sscanf(&lpszLine[bytes_read], "%2x", &dummy);
611 cal_checksum += (u8)dummy;
615 else if (record_type >= 7 && record_type <= 9)
617 /* S7, S8, S9 - ending records for 32, 24 and 16bit */
618 image->num_sections++;
620 /* copy section information */
621 image->sections = malloc(sizeof(image_section_t) * image->num_sections);
622 for (i = 0; i < image->num_sections; i++)
624 image->sections[i].private = section[i].private;
625 image->sections[i].base_address = section[i].base_address;
626 image->sections[i].size = section[i].size;
627 image->sections[i].flags = section[i].flags;
634 LOG_ERROR("unhandled S19 record type: %i", record_type);
635 return ERROR_IMAGE_FORMAT_ERROR;
638 /* account for checksum, will always be 0xFF */
639 sscanf(&lpszLine[bytes_read], "%2x", &checksum);
640 cal_checksum += (u8)checksum;
643 if( cal_checksum != 0xFF )
645 /* checksum failed */
646 LOG_ERROR("incorrect record checksum found in S19 file");
647 return ERROR_IMAGE_CHECKSUM;
651 LOG_ERROR("premature end of S19 file, no end-of-file record found");
652 return ERROR_IMAGE_FORMAT_ERROR;
655 int image_open(image_t *image, char *url, char *type_string)
657 int retval = ERROR_OK;
659 if ((retval = identify_image_type(image, type_string, url)) != ERROR_OK)
664 if (image->type == IMAGE_BINARY)
666 image_binary_t *image_binary;
668 image_binary = image->type_private = malloc(sizeof(image_binary_t));
670 if ((retval = fileio_open(&image_binary->fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK)
675 image->num_sections = 1;
676 image->sections = malloc(sizeof(image_section_t));
677 image->sections[0].base_address = 0x0;
678 image->sections[0].size = image_binary->fileio.size;
679 image->sections[0].flags = 0;
681 else if (image->type == IMAGE_IHEX)
683 image_ihex_t *image_ihex;
685 image_ihex = image->type_private = malloc(sizeof(image_ihex_t));
687 if ((retval = fileio_open(&image_ihex->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
692 if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK)
694 LOG_ERROR("failed buffering IHEX image, check daemon output for additional information");
695 fileio_close(&image_ihex->fileio);
699 else if (image->type == IMAGE_ELF)
701 image_elf_t *image_elf;
703 image_elf = image->type_private = malloc(sizeof(image_elf_t));
705 if ((retval = fileio_open(&image_elf->fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK)
710 if ((retval = image_elf_read_headers(image)) != ERROR_OK)
712 fileio_close(&image_elf->fileio);
716 else if (image->type == IMAGE_MEMORY)
718 image_memory_t *image_memory;
720 image->num_sections = 1;
721 image->sections = malloc(sizeof(image_section_t));
722 image->sections[0].base_address = 0x0;
723 image->sections[0].size = 0xffffffff;
724 image->sections[0].flags = 0;
726 image_memory = image->type_private = malloc(sizeof(image_memory_t));
728 image_memory->target = get_target_by_num(strtoul(url, NULL, 0));;
729 image_memory->cache = NULL;
730 image_memory->cache_address = 0x0;
732 else if (image->type == IMAGE_SRECORD)
734 image_mot_t *image_mot;
736 image_mot = image->type_private = malloc(sizeof(image_mot_t));
738 if ((retval = fileio_open(&image_mot->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
743 if ((retval = image_mot_buffer_complete(image)) != ERROR_OK)
745 LOG_ERROR("failed buffering S19 image, check daemon output for additional information");
746 fileio_close(&image_mot->fileio);
750 else if (image->type == IMAGE_BUILDER)
752 image->num_sections = 0;
753 image->sections = NULL;
754 image->type_private = NULL;
757 if (image->base_address_set)
761 for (section=0; section < image->num_sections; section++)
763 image->sections[section].base_address+=image->base_address;
765 /* we're done relocating. The two statements below are mainly
766 * for documenation purposes: stop anyone from empirically
767 * thinking they should use these values henceforth. */
768 image->base_address=0;
769 image->base_address_set=0;
775 int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read)
779 /* don't read past the end of a section */
780 if (offset + size > image->sections[section].size)
782 LOG_DEBUG("read past end of section: 0x%8.8x + 0x%8.8x > 0x%8.8x",
783 offset, size, image->sections[section].size);
784 return ERROR_INVALID_ARGUMENTS;
787 if (image->type == IMAGE_BINARY)
789 image_binary_t *image_binary = image->type_private;
791 /* only one section in a plain binary */
793 return ERROR_INVALID_ARGUMENTS;
796 if ((retval = fileio_seek(&image_binary->fileio, offset)) != ERROR_OK)
801 /* return requested bytes */
802 if ((retval = fileio_read(&image_binary->fileio, size, buffer, size_read)) != ERROR_OK)
807 else if (image->type == IMAGE_IHEX)
809 memcpy(buffer, (u8*)image->sections[section].private + offset, size);
814 else if (image->type == IMAGE_ELF)
816 return image_elf_read_section(image, section, offset, size, buffer, size_read);
818 else if (image->type == IMAGE_MEMORY)
820 image_memory_t *image_memory = image->type_private;
821 u32 address = image->sections[section].base_address + offset;
825 while ((size - *size_read) > 0)
829 if (!image_memory->cache
830 || (address < image_memory->cache_address)
831 || (address >= (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE)))
833 if (!image_memory->cache)
834 image_memory->cache = malloc(IMAGE_MEMORY_CACHE_SIZE);
836 if (target_read_buffer(image_memory->target, address & ~(IMAGE_MEMORY_CACHE_SIZE - 1),
837 IMAGE_MEMORY_CACHE_SIZE, image_memory->cache) != ERROR_OK)
839 free(image_memory->cache);
840 image_memory->cache = NULL;
841 return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
843 image_memory->cache_address = address & ~(IMAGE_MEMORY_CACHE_SIZE - 1);
846 size_in_cache = (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE) - address;
848 memcpy(buffer + *size_read,
849 image_memory->cache + (address - image_memory->cache_address),
850 (size_in_cache > size) ? size : size_in_cache
853 *size_read += (size_in_cache > size) ? size : size_in_cache;
854 address += (size_in_cache > size) ? size : size_in_cache;
857 else if (image->type == IMAGE_SRECORD)
859 memcpy(buffer, (u8*)image->sections[section].private + offset, size);
864 else if (image->type == IMAGE_BUILDER)
866 memcpy(buffer, (u8*)image->sections[section].private + offset, size);
875 int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data)
877 image_section_t *section;
879 /* only image builder supports adding sections */
880 if (image->type != IMAGE_BUILDER)
881 return ERROR_INVALID_ARGUMENTS;
883 /* see if there's a previous section */
884 if (image->num_sections)
886 section = &image->sections[image->num_sections - 1];
888 /* see if it's enough to extend the last section,
889 * adding data to previous sections or merging is not supported */
890 if (((section->base_address + section->size) == base) && (section->flags == flags))
892 section->private = realloc(section->private, section->size + size);
893 memcpy((u8*)section->private + section->size, data, size);
894 section->size += size;
899 /* allocate new section */
900 image->num_sections++;
901 image->sections = realloc(image->sections, sizeof(image_section_t) * image->num_sections);
902 section = &image->sections[image->num_sections - 1];
903 section->base_address = base;
904 section->size = size;
905 section->flags = flags;
906 section->private = malloc(sizeof(u8) * size);
907 memcpy((u8*)section->private, data, size);
912 int image_close(image_t *image)
914 if (image->type == IMAGE_BINARY)
916 image_binary_t *image_binary = image->type_private;
918 fileio_close(&image_binary->fileio);
920 else if (image->type == IMAGE_IHEX)
922 image_ihex_t *image_ihex = image->type_private;
924 fileio_close(&image_ihex->fileio);
926 if (image_ihex->buffer)
928 free(image_ihex->buffer);
929 image_ihex->buffer = NULL;
932 else if (image->type == IMAGE_ELF)
934 image_elf_t *image_elf = image->type_private;
936 fileio_close(&image_elf->fileio);
938 if (image_elf->header)
940 free(image_elf->header);
941 image_elf->header = NULL;
944 if (image_elf->segments)
946 free(image_elf->segments);
947 image_elf->segments = NULL;
950 else if (image->type == IMAGE_MEMORY)
952 image_memory_t *image_memory = image->type_private;
954 if (image_memory->cache)
956 free(image_memory->cache);
957 image_memory->cache = NULL;
960 else if (image->type == IMAGE_SRECORD)
962 image_mot_t *image_mot = image->type_private;
964 fileio_close(&image_mot->fileio);
966 if (image_mot->buffer)
968 free(image_mot->buffer);
969 image_mot->buffer = NULL;
972 else if (image->type == IMAGE_BUILDER)
976 for (i = 0; i < image->num_sections; i++)
978 free(image->sections[i].private);
979 image->sections[i].private = NULL;
983 if (image->type_private)
985 free(image->type_private);
986 image->type_private = NULL;
991 free(image->sections);
992 image->sections = NULL;
998 static u32 crc32_table[256] = {0, 0};
1000 int image_calculate_checksum(u8* buffer, u32 nbytes, u32* checksum)
1002 u32 crc = 0xffffffff;
1004 if (!crc32_table[1])
1006 /* Initialize the CRC table and the decoding table. */
1009 for (i = 0; i < 256; i++)
1012 for (c = i << 24, j = 8; j > 0; --j)
1013 c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
1021 crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];