X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fimage.c;h=9a9c9553b87f1b66bdb71da7ebf684fb1bdb8a4f;hp=0c203f6b57b3df37c00c0c3eebe2982b49766858;hb=9f212b01be20da43ba534ad33b20419779c89335;hpb=29000b204d039bc1123027eba755329ab36a3dde diff --git a/src/target/image.c b/src/target/image.c index 0c203f6b57..9a9c9553b8 100644 --- a/src/target/image.c +++ b/src/target/image.c @@ -2,6 +2,15 @@ * Copyright (C) 2007 by Dominic Rath * * Dominic.Rath@gmx.de * * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * Copyright (C) 2008 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * Copyright (C) 2009 by Franck Hereson * + * franck.hereson@secad.fr * + * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * @@ -21,75 +30,63 @@ #include "config.h" #endif -#include -#include -#ifdef HAVE_ELF_H -#include -#endif - #include "image.h" - -#include "types.h" -#include "replacements.h" +#include "target.h" #include "log.h" -#include "fileio.h" -#include "target.h" /* convert ELF header field to host endianness */ #define field16(elf,field)\ - ((elf->endianness==ELFDATA2LSB)? \ - le_to_h_u16((u8*)&field):be_to_h_u16((u8*)&field)) + ((elf->endianness == ELFDATA2LSB)? \ + le_to_h_u16((uint8_t*)&field):be_to_h_u16((uint8_t*)&field)) #define field32(elf,field)\ - ((elf->endianness==ELFDATA2LSB)? \ - le_to_h_u32((u8*)&field):be_to_h_u32((u8*)&field)) + ((elf->endianness == ELFDATA2LSB)? \ + le_to_h_u32((uint8_t*)&field):be_to_h_u32((uint8_t*)&field)) -static int autodetect_image_type(image_t *image, char *url) +static int autodetect_image_type(image_t *image, const char *url) { int retval; - fileio_t fileio; - u32 read_bytes; - u8 buffer[9]; - + struct fileio fileio; + uint32_t read_bytes; + uint8_t buffer[9]; + /* read the first 4 bytes of image */ if ((retval = fileio_open(&fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK) { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, "cannot open image: %s", fileio.error_str); - ERROR(image->error_str); return retval; } - if ((retval = fileio_read(&fileio, 9, buffer, &read_bytes)) != ERROR_OK) - { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, "cannot read image header: %s", fileio.error_str); - ERROR(image->error_str); - return ERROR_FILEIO_OPERATION_FAILED; - } - if (read_bytes != 9) + retval = fileio_read(&fileio, 9, buffer, &read_bytes); + + if (retval == ERROR_OK) { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, "cannot read image, only partially read"); - ERROR(image->error_str); - return ERROR_FILEIO_OPERATION_FAILED; + if (read_bytes != 9) + { + retval = ERROR_FILEIO_OPERATION_FAILED; + } } fileio_close(&fileio); + if (retval != ERROR_OK) + return retval; + /* check header against known signatures */ - if (strncmp((char*)buffer,ELFMAG,SELFMAG)==0) + if (strncmp((char*)buffer,ELFMAG,SELFMAG) == 0) { - DEBUG("ELF image detected."); + LOG_DEBUG("ELF image detected."); image->type = IMAGE_ELF; } - else if ((buffer[0]==':') /* record start byte */ - &&(isxdigit(buffer[1])) - &&(isxdigit(buffer[2])) - &&(isxdigit(buffer[3])) - &&(isxdigit(buffer[4])) - &&(isxdigit(buffer[5])) - &&(isxdigit(buffer[6])) - &&(buffer[7]=='0') /* record type : 00 -> 05 */ - &&(buffer[8]>='0')&&(buffer[8]<'6')) - { - DEBUG("IHEX image detected."); + else if ((buffer[0]==':') /* record start byte */ + &&(isxdigit(buffer[1])) + &&(isxdigit(buffer[2])) + &&(isxdigit(buffer[3])) + &&(isxdigit(buffer[4])) + &&(isxdigit(buffer[5])) + &&(isxdigit(buffer[6])) + &&(buffer[7]=='0') /* record type : 00 -> 05 */ + &&(buffer[8]>='0') && (buffer[8]<'6')) + { + LOG_DEBUG("IHEX image detected."); image->type = IMAGE_IHEX; } else if ((buffer[0] == 'S') /* record start byte */ @@ -98,7 +95,7 @@ static int autodetect_image_type(image_t *image, char *url) &&(isxdigit(buffer[3])) &&(buffer[1] >= '0') && (buffer[1] < '9')) { - DEBUG("S19 image detected."); + LOG_DEBUG("S19 image detected."); image->type = IMAGE_SRECORD; } else @@ -109,7 +106,7 @@ static int autodetect_image_type(image_t *image, char *url) return ERROR_OK; } -int identify_image_type(image_t *image, char *type_string, char *url) +static int identify_image_type(image_t *image, const char *type_string, const char *url) { if (type_string) { @@ -146,66 +143,51 @@ int identify_image_type(image_t *image, char *type_string, char *url) { return autodetect_image_type(image, url); } - + return ERROR_OK; } -int image_ihex_buffer_complete(image_t *image) +static int image_ihex_buffer_complete(image_t *image) { image_ihex_t *ihex = image->type_private; - fileio_t *fileio = &ihex->fileio; - u32 raw_bytes_read, raw_bytes; - int retval; - u32 full_address = 0x0; - char *buffer = malloc(fileio->size); - u32 cooked_bytes; + struct fileio *fileio = &ihex->fileio; + uint32_t full_address = 0x0; + uint32_t cooked_bytes; int i; - + char lpszLine[1023]; + /* we can't determine the number of sections that we'll have to create ahead of time, * so we locally hold them until parsing is finished */ image_section_t section[IMAGE_MAX_SECTIONS]; - - if ((retval = fileio_read(fileio, fileio->size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK) - { - free(buffer); - ERROR("failed buffering IHEX file, read failed"); - return ERROR_FILEIO_OPERATION_FAILED; - } - - if (raw_bytes_read != fileio->size) - { - free(buffer); - ERROR("failed buffering complete IHEX file, only partially read"); - return ERROR_FILEIO_OPERATION_FAILED; - } ihex->buffer = malloc(fileio->size >> 1); - raw_bytes = 0x0; cooked_bytes = 0x0; image->num_sections = 0; section[image->num_sections].private = &ihex->buffer[cooked_bytes]; section[image->num_sections].base_address = 0x0; section[image->num_sections].size = 0x0; section[image->num_sections].flags = 0; - while (raw_bytes < raw_bytes_read) + + while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK) { - u32 count; - u32 address; - u32 record_type; - u32 checksum; - u8 cal_checksum = 0; - - if (sscanf(&buffer[raw_bytes], ":%2x%4x%2x", &count, &address, &record_type) != 3) + uint32_t count; + uint32_t address; + uint32_t record_type; + uint32_t checksum; + uint8_t cal_checksum = 0; + uint32_t bytes_read = 0; + + if (sscanf(&lpszLine[bytes_read], ":%2" SCNx32 "%4" SCNx32 "%2" SCNx32 , &count, &address, &record_type) != 3) { return ERROR_IMAGE_FORMAT_ERROR; } - raw_bytes += 9; - - cal_checksum += (u8)count; - cal_checksum += (u8)(address >> 8); - cal_checksum += (u8)address; - cal_checksum += (u8)record_type; - + bytes_read += 9; + + cal_checksum += (uint8_t)count; + cal_checksum += (uint8_t)(address >> 8); + cal_checksum += (uint8_t)address; + cal_checksum += (uint8_t)record_type; + if (record_type == 0) /* Data Record */ { if ((full_address & 0xffff) != address) @@ -217,6 +199,12 @@ int image_ihex_buffer_complete(image_t *image) if (section[image->num_sections].size != 0) { image->num_sections++; + if (image->num_sections >= IMAGE_MAX_SECTIONS) + { + /* too many sections */ + LOG_ERROR("Too many sections found in IHEX file"); + return ERROR_IMAGE_FORMAT_ERROR; + } section[image->num_sections].size = 0x0; section[image->num_sections].flags = 0; section[image->num_sections].private = &ihex->buffer[cooked_bytes]; @@ -225,12 +213,14 @@ int image_ihex_buffer_complete(image_t *image) (full_address & 0xffff0000) | address; full_address = (full_address & 0xffff0000) | address; } - + while (count-- > 0) { - sscanf(&buffer[raw_bytes], "%2hhx", &ihex->buffer[cooked_bytes]); - cal_checksum += (u8)ihex->buffer[cooked_bytes]; - raw_bytes += 2; + unsigned value; + sscanf(&lpszLine[bytes_read], "%2x", &value); + ihex->buffer[cooked_bytes] = (uint8_t)value; + cal_checksum += (uint8_t)ihex->buffer[cooked_bytes]; + bytes_read += 2; cooked_bytes += 1; section[image->num_sections].size += 1; full_address++; @@ -240,30 +230,74 @@ int image_ihex_buffer_complete(image_t *image) { /* finish the current section */ image->num_sections++; - + /* copy section information */ image->sections = malloc(sizeof(image_section_t) * image->num_sections); for (i = 0; i < image->num_sections; i++) { image->sections[i].private = section[i].private; - image->sections[i].base_address = section[i].base_address + - ((image->base_address_set) ? image->base_address : 0); + image->sections[i].base_address = section[i].base_address; image->sections[i].size = section[i].size; image->sections[i].flags = section[i].flags; } - - free(buffer); + return ERROR_OK; } + else if (record_type == 2) /* Linear Address Record */ + { + uint16_t upper_address; + + sscanf(&lpszLine[bytes_read], "%4hx", &upper_address); + cal_checksum += (uint8_t)(upper_address >> 8); + cal_checksum += (uint8_t)upper_address; + bytes_read += 4; + + if ((full_address >> 4) != upper_address) + { + /* we encountered a nonconsecutive location, create a new section, + * unless the current section has zero size, in which case this specifies + * the current section's base address + */ + if (section[image->num_sections].size != 0) + { + image->num_sections++; + if (image->num_sections >= IMAGE_MAX_SECTIONS) + { + /* too many sections */ + LOG_ERROR("Too many sections found in IHEX file"); + return ERROR_IMAGE_FORMAT_ERROR; + } + section[image->num_sections].size = 0x0; + section[image->num_sections].flags = 0; + section[image->num_sections].private = &ihex->buffer[cooked_bytes]; + } + section[image->num_sections].base_address = + (full_address & 0xffff) | (upper_address << 4); + full_address = (full_address & 0xffff) | (upper_address << 4); + } + } + else if (record_type == 3) /* Start Segment Address Record */ + { + uint32_t dummy; + + /* "Start Segment Address Record" will not be supported */ + /* but we must consume it, and do not create an error. */ + while (count-- > 0) + { + sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &dummy); + cal_checksum += (uint8_t)dummy; + bytes_read += 2; + } + } else if (record_type == 4) /* Extended Linear Address Record */ { - u16 upper_address; - - sscanf(&buffer[raw_bytes], "%4hx", &upper_address); - cal_checksum += (u8)(upper_address >> 8); - cal_checksum += (u8)upper_address; - raw_bytes += 4; - + uint16_t upper_address; + + sscanf(&lpszLine[bytes_read], "%4hx", &upper_address); + cal_checksum += (uint8_t)(upper_address >> 8); + cal_checksum += (uint8_t)upper_address; + bytes_read += 4; + if ((full_address >> 16) != upper_address) { /* we encountered a nonconsecutive location, create a new section, @@ -273,172 +307,184 @@ int image_ihex_buffer_complete(image_t *image) if (section[image->num_sections].size != 0) { image->num_sections++; + if (image->num_sections >= IMAGE_MAX_SECTIONS) + { + /* too many sections */ + LOG_ERROR("Too many sections found in IHEX file"); + return ERROR_IMAGE_FORMAT_ERROR; + } section[image->num_sections].size = 0x0; section[image->num_sections].flags = 0; section[image->num_sections].private = &ihex->buffer[cooked_bytes]; } - section[image->num_sections].base_address = + section[image->num_sections].base_address = (full_address & 0xffff) | (upper_address << 16); full_address = (full_address & 0xffff) | (upper_address << 16); } } else if (record_type == 5) /* Start Linear Address Record */ { - u32 start_address; - - sscanf(&buffer[raw_bytes], "%8x", &start_address); - cal_checksum += (u8)(start_address >> 24); - cal_checksum += (u8)(start_address >> 16); - cal_checksum += (u8)(start_address >> 8); - cal_checksum += (u8)start_address; - raw_bytes += 8; - + uint32_t start_address; + + sscanf(&lpszLine[bytes_read], "%8" SCNx32, &start_address); + cal_checksum += (uint8_t)(start_address >> 24); + cal_checksum += (uint8_t)(start_address >> 16); + cal_checksum += (uint8_t)(start_address >> 8); + cal_checksum += (uint8_t)start_address; + bytes_read += 8; + image->start_address_set = 1; - image->start_address = be_to_h_u32((u8*)&start_address); + image->start_address = be_to_h_u32((uint8_t*)&start_address); } else { - free(buffer); - ERROR("unhandled IHEX record type: %i", record_type); + LOG_ERROR("unhandled IHEX record type: %i", (int)record_type); return ERROR_IMAGE_FORMAT_ERROR; } - - sscanf(&buffer[raw_bytes], "%2x", &checksum); - raw_bytes += 2; - - if ((u8)checksum != (u8)(~cal_checksum + 1)) + + sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &checksum); + bytes_read += 2; + + if ((uint8_t)checksum != (uint8_t)(~cal_checksum + 1)) { /* checksum failed */ - free(buffer); - ERROR("incorrect record checksum found in IHEX file"); + LOG_ERROR("incorrect record checksum found in IHEX file"); return ERROR_IMAGE_CHECKSUM; } - - /* consume new-line character(s) */ - if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r')) - raw_bytes++; - - if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r')) - raw_bytes++; } - free(buffer); - ERROR("premature end of IHEX file, no end-of-file record found"); + LOG_ERROR("premature end of IHEX file, no end-of-file record found"); return ERROR_IMAGE_FORMAT_ERROR; } -int image_elf_read_headers(image_t *image) +static int image_elf_read_headers(image_t *image) { image_elf_t *elf = image->type_private; - u32 read_bytes; - u32 i,j; + uint32_t read_bytes; + uint32_t i,j; int retval; elf->header = malloc(sizeof(Elf32_Ehdr)); - if ((retval = fileio_read(&elf->fileio, sizeof(Elf32_Ehdr), (u8*)elf->header, &read_bytes)) != ERROR_OK) + if (elf->header == NULL) { - ERROR("cannot read ELF file header, read failed"); + LOG_ERROR("insufficient memory to perform operation "); + return ERROR_FILEIO_OPERATION_FAILED; + } + + if ((retval = fileio_read(&elf->fileio, sizeof(Elf32_Ehdr), (uint8_t*)elf->header, &read_bytes)) != ERROR_OK) + { + LOG_ERROR("cannot read ELF file header, read failed"); return ERROR_FILEIO_OPERATION_FAILED; } if (read_bytes != sizeof(Elf32_Ehdr)) { - ERROR("cannot read ELF file header, only partially read"); + LOG_ERROR("cannot read ELF file header, only partially read"); return ERROR_FILEIO_OPERATION_FAILED; } - if (strncmp((char*)elf->header->e_ident,ELFMAG,SELFMAG)!=0) + if (strncmp((char*)elf->header->e_ident,ELFMAG,SELFMAG) != 0) { - ERROR("invalid ELF file, bad magic number"); + LOG_ERROR("invalid ELF file, bad magic number"); return ERROR_IMAGE_FORMAT_ERROR; } if (elf->header->e_ident[EI_CLASS]!=ELFCLASS32) { - ERROR("invalid ELF file, only 32bits files are supported"); + LOG_ERROR("invalid ELF file, only 32bits files are supported"); return ERROR_IMAGE_FORMAT_ERROR; } - elf->endianness = elf->header->e_ident[EI_DATA]; - if ((elf->endianness!=ELFDATA2LSB) - &&(elf->endianness!=ELFDATA2MSB)) + if ((elf->endianness != ELFDATA2LSB) + &&(elf->endianness != ELFDATA2MSB)) { - ERROR("invalid ELF file, unknown endianess setting"); + LOG_ERROR("invalid ELF file, unknown endianess setting"); return ERROR_IMAGE_FORMAT_ERROR; } elf->segment_count = field16(elf,elf->header->e_phnum); - if (elf->segment_count==0) + if (elf->segment_count == 0) { - ERROR("invalid ELF file, no program headers"); + LOG_ERROR("invalid ELF file, no program headers"); return ERROR_IMAGE_FORMAT_ERROR; } + if ((retval = fileio_seek(&elf->fileio, field32(elf,elf->header->e_phoff))) != ERROR_OK) + { + LOG_ERROR("cannot seek to ELF program header table, read failed"); + return retval; + } + elf->segments = malloc(elf->segment_count*sizeof(Elf32_Phdr)); + if (elf->segments == NULL) + { + LOG_ERROR("insufficient memory to perform operation "); + return ERROR_FILEIO_OPERATION_FAILED; + } - if ((retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr), (u8*)elf->segments, &read_bytes)) != ERROR_OK) + if ((retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr), (uint8_t*)elf->segments, &read_bytes)) != ERROR_OK) { - ERROR("cannot read ELF segment headers, read failed"); + LOG_ERROR("cannot read ELF segment headers, read failed"); return retval; } if (read_bytes != elf->segment_count*sizeof(Elf32_Phdr)) { - ERROR("cannot read ELF segment headers, only partially read"); + LOG_ERROR("cannot read ELF segment headers, only partially read"); return ERROR_FILEIO_OPERATION_FAILED; } /* count useful segments (loadable), ignore BSS section */ image->num_sections = 0; - for (i=0;isegment_count;i++) + for (i = 0;i < elf->segment_count;i++) if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0)) image->num_sections++; /* alloc and fill sections array with loadable segments */ image->sections = malloc(image->num_sections * sizeof(image_section_t)); - for (i=0,j=0;isegment_count;i++) + for (i = 0,j = 0;i < elf->segment_count;i++) { if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0)) { - image->sections[j].size = field32(elf,elf->segments[i].p_memsz); + image->sections[j].size = field32(elf,elf->segments[i].p_filesz); image->sections[j].base_address = field32(elf,elf->segments[i].p_paddr); image->sections[j].private = &elf->segments[i]; image->sections[j].flags = field32(elf,elf->segments[i].p_flags); j++; } } - + image->start_address_set = 1; image->start_address = field32(elf,elf->header->e_entry); return ERROR_OK; } -int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read) +static int image_elf_read_section(image_t *image, int section, uint32_t offset, uint32_t size, uint8_t *buffer, uint32_t *size_read) { image_elf_t *elf = image->type_private; Elf32_Phdr *segment = (Elf32_Phdr *)image->sections[section].private; - u32 read_size,really_read; + uint32_t read_size,really_read; int retval; *size_read = 0; - - DEBUG("load segment %d at 0x%x (sz=0x%x)",section,offset,size); + + LOG_DEBUG("load segment %d at 0x%" PRIx32 " (sz = 0x%" PRIx32 ")",section,offset,size); /* read initialized data in current segment if any */ - if (offsetp_filesz)) + if (offset < field32(elf,segment->p_filesz)) { /* maximal size present in file for the current segment */ read_size = MIN(size, field32(elf,segment->p_filesz)-offset); - DEBUG("read elf: size = 0x%x at 0x%x",read_size, - field32(elf,segment->p_offset)+offset); + LOG_DEBUG("read elf: size = 0x%" PRIx32 " at 0x%" PRIx32 "",read_size, + field32(elf,segment->p_offset) + offset); /* read initialized area of the segment */ - if ((retval = fileio_seek(&elf->fileio, field32(elf,segment->p_offset)+offset)) != ERROR_OK) + if ((retval = fileio_seek(&elf->fileio, field32(elf,segment->p_offset) + offset)) != ERROR_OK) { - ERROR("cannot find ELF segment content, seek failed"); + LOG_ERROR("cannot find ELF segment content, seek failed"); return retval; } if ((retval = fileio_read(&elf->fileio, read_size, buffer, &really_read)) != ERROR_OK) { - ERROR("cannot read ELF segment content, read failed"); + LOG_ERROR("cannot read ELF segment content, read failed"); return retval; } buffer += read_size; @@ -449,124 +495,99 @@ int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8 if (!size) return ERROR_OK; } - /* if there is remaining zeroed area in current segment */ - if (offsetp_memsz)) - { - /* fill zeroed part (BSS) of the segment */ - read_size = MIN(size, field32(elf,segment->p_memsz)-offset); - DEBUG("zero fill: size = 0x%x",read_size); - memset(buffer,0,read_size); - *size_read += read_size; - } - + return ERROR_OK; } -int image_mot_buffer_complete(image_t *image) +static int image_mot_buffer_complete(image_t *image) { image_mot_t *mot = image->type_private; - fileio_t *fileio = &mot->fileio; - u32 raw_bytes_read, raw_bytes; - int retval; - u32 full_address = 0x0; - char *buffer = malloc(fileio->size); - u32 cooked_bytes; + struct fileio *fileio = &mot->fileio; + uint32_t full_address = 0x0; + uint32_t cooked_bytes; int i; - + char lpszLine[1023]; + /* we can't determine the number of sections that we'll have to create ahead of time, * so we locally hold them until parsing is finished */ image_section_t section[IMAGE_MAX_SECTIONS]; - - if ((retval = fileio_read(fileio, fileio->size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK) - { - free(buffer); - ERROR("failed buffering S19 file, read failed"); - return ERROR_FILEIO_OPERATION_FAILED; - } - - if (raw_bytes_read != fileio->size) - { - free(buffer); - ERROR("failed buffering complete IHEX file, only partially read"); - return ERROR_FILEIO_OPERATION_FAILED; - } mot->buffer = malloc(fileio->size >> 1); - raw_bytes = 0x0; cooked_bytes = 0x0; image->num_sections = 0; section[image->num_sections].private = &mot->buffer[cooked_bytes]; section[image->num_sections].base_address = 0x0; section[image->num_sections].size = 0x0; section[image->num_sections].flags = 0; - - while (raw_bytes < raw_bytes_read) - { - u32 count; - u32 address; - u32 record_type; - u32 checksum; - u8 cal_checksum = 0; - + + while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK) + { + uint32_t count; + uint32_t address; + uint32_t record_type; + uint32_t checksum; + uint8_t cal_checksum = 0; + uint32_t bytes_read = 0; + /* get record type and record length */ - if (sscanf(&buffer[raw_bytes], "S%1x%2x", &record_type, &count) != 2) + if (sscanf(&lpszLine[bytes_read], "S%1" SCNx32 "%2" SCNx32 , &record_type, &count) != 2) { return ERROR_IMAGE_FORMAT_ERROR; } - - raw_bytes += 4; - cal_checksum += (u8)count; - + + bytes_read += 4; + cal_checksum += (uint8_t)count; + /* skip checksum byte */ count -=1; - + if (record_type == 0) { /* S0 - starting record (optional) */ int iValue; - + while (count-- > 0) { - sscanf(&buffer[raw_bytes], "%2x", &iValue); - cal_checksum += (u8)iValue; - raw_bytes += 2; + sscanf(&lpszLine[bytes_read], "%2x", &iValue); + cal_checksum += (uint8_t)iValue; + bytes_read += 2; } } else if (record_type >= 1 && record_type <= 3) { - switch( record_type ) + switch (record_type) { case 1: /* S1 - 16 bit address data record */ - sscanf(&buffer[raw_bytes], "%4x", &address); - cal_checksum += (u8)(address >> 8); - cal_checksum += (u8)address; - raw_bytes += 4; + sscanf(&lpszLine[bytes_read], "%4" SCNx32, &address); + cal_checksum += (uint8_t)(address >> 8); + cal_checksum += (uint8_t)address; + bytes_read += 4; count -=2; break; - + case 2: /* S2 - 24 bit address data record */ - sscanf(&buffer[raw_bytes], "%6x", &address); - cal_checksum += (u8)(address >> 16); - cal_checksum += (u8)(address >> 8); - cal_checksum += (u8)address; - raw_bytes += 6; + sscanf(&lpszLine[bytes_read], "%6" SCNx32 , &address); + cal_checksum += (uint8_t)(address >> 16); + cal_checksum += (uint8_t)(address >> 8); + cal_checksum += (uint8_t)address; + bytes_read += 6; count -=3; break; - + case 3: /* S3 - 32 bit address data record */ - sscanf(&buffer[raw_bytes], "%8x", &address); - cal_checksum += (u8)(address >> 24); - cal_checksum += (u8)(address >> 16); - cal_checksum += (u8)(address >> 8); - cal_checksum += (u8)address; - raw_bytes += 8; + sscanf(&lpszLine[bytes_read], "%8" SCNx32 , &address); + cal_checksum += (uint8_t)(address >> 24); + cal_checksum += (uint8_t)(address >> 16); + cal_checksum += (uint8_t)(address >> 8); + cal_checksum += (uint8_t)address; + bytes_read += 8; count -=4; break; - + } - + if (full_address != address) { /* we encountered a nonconsecutive location, create a new section, @@ -580,124 +601,114 @@ int image_mot_buffer_complete(image_t *image) section[image->num_sections].flags = 0; section[image->num_sections].private = &mot->buffer[cooked_bytes]; } - section[image->num_sections].base_address = - full_address | address; - full_address = full_address | address; + section[image->num_sections].base_address = address; + full_address = address; } - + while (count-- > 0) { - sscanf(&buffer[raw_bytes], "%2hhx", &mot->buffer[cooked_bytes]); - cal_checksum += (u8)mot->buffer[cooked_bytes]; - raw_bytes += 2; + unsigned value; + sscanf(&lpszLine[bytes_read], "%2x", &value); + mot->buffer[cooked_bytes] = (uint8_t)value; + cal_checksum += (uint8_t)mot->buffer[cooked_bytes]; + bytes_read += 2; cooked_bytes += 1; section[image->num_sections].size += 1; full_address++; } } + else if (record_type == 5) + { + /* S5 is the data count record, we ignore it */ + uint32_t dummy; + + while (count-- > 0) + { + sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &dummy); + cal_checksum += (uint8_t)dummy; + bytes_read += 2; + } + } else if (record_type >= 7 && record_type <= 9) { /* S7, S8, S9 - ending records for 32, 24 and 16bit */ image->num_sections++; - + /* copy section information */ image->sections = malloc(sizeof(image_section_t) * image->num_sections); for (i = 0; i < image->num_sections; i++) { image->sections[i].private = section[i].private; - image->sections[i].base_address = section[i].base_address + - ((image->base_address_set) ? image->base_address : 0); + image->sections[i].base_address = section[i].base_address; image->sections[i].size = section[i].size; image->sections[i].flags = section[i].flags; } - - free(buffer); + return ERROR_OK; } else { - free(buffer); - ERROR("unhandled S19 record type: %i", record_type); + LOG_ERROR("unhandled S19 record type: %i", (int)(record_type)); return ERROR_IMAGE_FORMAT_ERROR; } - + /* account for checksum, will always be 0xFF */ - sscanf(&buffer[raw_bytes], "%2x", &checksum); - cal_checksum += (u8)checksum; - raw_bytes += 2; - - if( cal_checksum != 0xFF ) + sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &checksum); + cal_checksum += (uint8_t)checksum; + bytes_read += 2; + + if (cal_checksum != 0xFF) { /* checksum failed */ - free(buffer); - ERROR("incorrect record checksum found in S19 file"); + LOG_ERROR("incorrect record checksum found in S19 file"); return ERROR_IMAGE_CHECKSUM; } - - /* consume new-line character(s) */ - if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r')) - raw_bytes++; - - if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r')) - raw_bytes++; } - free(buffer); - ERROR("premature end of S19 file, no end-of-file record found"); + LOG_ERROR("premature end of S19 file, no end-of-file record found"); return ERROR_IMAGE_FORMAT_ERROR; } -int image_open(image_t *image, char *url, char *type_string) +int image_open(image_t *image, const char *url, const char *type_string) { int retval = ERROR_OK; - + if ((retval = identify_image_type(image, type_string, url)) != ERROR_OK) { return retval; } - + if (image->type == IMAGE_BINARY) { image_binary_t *image_binary; - + image_binary = image->type_private = malloc(sizeof(image_binary_t)); - + if ((retval = fileio_open(&image_binary->fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK) { - strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING); - ERROR(image->error_str); return retval; } - + image->num_sections = 1; image->sections = malloc(sizeof(image_section_t)); image->sections[0].base_address = 0x0; image->sections[0].size = image_binary->fileio.size; image->sections[0].flags = 0; - - if (image->base_address_set == 1) - image->sections[0].base_address = image->base_address; - - return ERROR_OK; } else if (image->type == IMAGE_IHEX) { image_ihex_t *image_ihex; - + image_ihex = image->type_private = malloc(sizeof(image_ihex_t)); - + if ((retval = fileio_open(&image_ihex->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK) { - strncpy(image->error_str, image_ihex->fileio.error_str, IMAGE_MAX_ERROR_STRING); - ERROR(image->error_str); return retval; } - + if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK) { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, - "failed buffering IHEX image, check daemon output for additional information"); - ERROR(image->error_str); + LOG_ERROR("failed buffering IHEX image, check daemon output for additional information"); fileio_close(&image_ihex->fileio); return retval; } @@ -705,59 +716,58 @@ int image_open(image_t *image, char *url, char *type_string) else if (image->type == IMAGE_ELF) { image_elf_t *image_elf; - + image_elf = image->type_private = malloc(sizeof(image_elf_t)); - + if ((retval = fileio_open(&image_elf->fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK) { - strncpy(image->error_str, image_elf->fileio.error_str, IMAGE_MAX_ERROR_STRING); - ERROR(image->error_str); return retval; } - + if ((retval = image_elf_read_headers(image)) != ERROR_OK) { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, - "failed to read ELF headers, check daemon output for additional information"); - ERROR(image->error_str); fileio_close(&image_elf->fileio); return retval; } } else if (image->type == IMAGE_MEMORY) { + target_t *target = get_target(url); + + if (target == NULL) + { + LOG_ERROR("target '%s' not defined", url); + return ERROR_FAIL; + } + image_memory_t *image_memory; - + image->num_sections = 1; image->sections = malloc(sizeof(image_section_t)); image->sections[0].base_address = 0x0; image->sections[0].size = 0xffffffff; image->sections[0].flags = 0; - + image_memory = image->type_private = malloc(sizeof(image_memory_t)); - - image_memory->target = get_target_by_num(strtoul(url, NULL, 0));; + + image_memory->target = target; image_memory->cache = NULL; image_memory->cache_address = 0x0; } else if (image->type == IMAGE_SRECORD) { image_mot_t *image_mot; - + image_mot = image->type_private = malloc(sizeof(image_mot_t)); - + if ((retval = fileio_open(&image_mot->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK) { - strncpy(image->error_str, image_mot->fileio.error_str, IMAGE_MAX_ERROR_STRING); - ERROR(image->error_str); return retval; } - + if ((retval = image_mot_buffer_complete(image)) != ERROR_OK) { - snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, - "failed buffering S19 image, check daemon output for additional information"); - ERROR(image->error_str); + LOG_ERROR("failed buffering S19 image, check daemon output for additional information"); fileio_close(&image_mot->fileio); return retval; } @@ -768,18 +778,33 @@ int image_open(image_t *image, char *url, char *type_string) image->sections = NULL; image->type_private = NULL; } - + + if (image->base_address_set) + { + /* relocate */ + int section; + for (section = 0; section < image->num_sections; section++) + { + image->sections[section].base_address += image->base_address; + } + /* we're done relocating. The two statements below are mainly + * for documenation purposes: stop anyone from empirically + * thinking they should use these values henceforth. */ + image->base_address = 0; + image->base_address_set = 0; + } + return retval; }; -int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read) +int image_read_section(image_t *image, int section, uint32_t offset, uint32_t size, uint8_t *buffer, uint32_t *size_read) { int retval; /* don't read past the end of a section */ if (offset + size > image->sections[section].size) { - DEBUG("read past end of section: 0x%8.8x + 0x%8.8x > 0x%8.8x", + LOG_DEBUG("read past end of section: 0x%8.8" PRIx32 " + 0x%8.8" PRIx32 " > 0x%8.8" PRIx32 "", offset, size, image->sections[section].size); return ERROR_INVALID_ARGUMENTS; } @@ -787,31 +812,28 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu if (image->type == IMAGE_BINARY) { image_binary_t *image_binary = image->type_private; - + /* only one section in a plain binary */ if (section != 0) return ERROR_INVALID_ARGUMENTS; - + /* seek to offset */ if ((retval = fileio_seek(&image_binary->fileio, offset)) != ERROR_OK) { - strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING); return retval; } - + /* return requested bytes */ if ((retval = fileio_read(&image_binary->fileio, size, buffer, size_read)) != ERROR_OK) { - strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING); return retval; } } else if (image->type == IMAGE_IHEX) { - memcpy(buffer, (u8*)image->sections[section].private + offset, size); + memcpy(buffer, (uint8_t*)image->sections[section].private + offset, size); *size_read = size; - image->error_str[0] = '\0'; - + return ERROR_OK; } else if (image->type == IMAGE_ELF) @@ -821,85 +843,84 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu else if (image->type == IMAGE_MEMORY) { image_memory_t *image_memory = image->type_private; - u32 address = image->sections[section].base_address + offset; - + uint32_t address = image->sections[section].base_address + offset; + *size_read = 0; - + while ((size - *size_read) > 0) { - u32 size_in_cache; - + uint32_t size_in_cache; + if (!image_memory->cache || (address < image_memory->cache_address) || (address >= (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE))) { if (!image_memory->cache) image_memory->cache = malloc(IMAGE_MEMORY_CACHE_SIZE); - + if (target_read_buffer(image_memory->target, address & ~(IMAGE_MEMORY_CACHE_SIZE - 1), IMAGE_MEMORY_CACHE_SIZE, image_memory->cache) != ERROR_OK) { free(image_memory->cache); + image_memory->cache = NULL; return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE; } image_memory->cache_address = address & ~(IMAGE_MEMORY_CACHE_SIZE - 1); } - + size_in_cache = (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE) - address; - + memcpy(buffer + *size_read, image_memory->cache + (address - image_memory->cache_address), (size_in_cache > size) ? size : size_in_cache - ); - +); + *size_read += (size_in_cache > size) ? size : size_in_cache; address += (size_in_cache > size) ? size : size_in_cache; } } else if (image->type == IMAGE_SRECORD) { - memcpy(buffer, (u8*)image->sections[section].private + offset, size); + memcpy(buffer, (uint8_t*)image->sections[section].private + offset, size); *size_read = size; - image->error_str[0] = '\0'; - + return ERROR_OK; } else if (image->type == IMAGE_BUILDER) { - memcpy(buffer, (u8*)image->sections[section].private + offset, size); + memcpy(buffer, (uint8_t*)image->sections[section].private + offset, size); *size_read = size; - image->error_str[0] = '\0'; - + return ERROR_OK; } - + return ERROR_OK; } -int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data) +int image_add_section(image_t *image, uint32_t base, uint32_t size, int flags, uint8_t *data) { image_section_t *section; - + /* only image builder supports adding sections */ if (image->type != IMAGE_BUILDER) return ERROR_INVALID_ARGUMENTS; - + /* see if there's a previous section */ if (image->num_sections) { section = &image->sections[image->num_sections - 1]; - + /* see if it's enough to extend the last section, * adding data to previous sections or merging is not supported */ if (((section->base_address + section->size) == base) && (section->flags == flags)) { section->private = realloc(section->private, section->size + size); - memcpy((u8*)section->private + section->size, data, size); + memcpy((uint8_t*)section->private + section->size, data, size); section->size += size; return ERROR_OK; } } - + /* allocate new section */ image->num_sections++; image->sections = realloc(image->sections, sizeof(image_section_t) * image->num_sections); @@ -907,72 +928,132 @@ int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data) section->base_address = base; section->size = size; section->flags = flags; - section->private = malloc(sizeof(u8) * size); - memcpy((u8*)section->private, data, size); - + section->private = malloc(sizeof(uint8_t) * size); + memcpy((uint8_t*)section->private, data, size); + return ERROR_OK; } -int image_close(image_t *image) +void image_close(image_t *image) { if (image->type == IMAGE_BINARY) { image_binary_t *image_binary = image->type_private; - + fileio_close(&image_binary->fileio); } else if (image->type == IMAGE_IHEX) { image_ihex_t *image_ihex = image->type_private; - + fileio_close(&image_ihex->fileio); - + if (image_ihex->buffer) + { free(image_ihex->buffer); + image_ihex->buffer = NULL; + } } else if (image->type == IMAGE_ELF) { image_elf_t *image_elf = image->type_private; - + fileio_close(&image_elf->fileio); if (image_elf->header) + { free(image_elf->header); + image_elf->header = NULL; + } if (image_elf->segments) + { free(image_elf->segments); + image_elf->segments = NULL; + } } else if (image->type == IMAGE_MEMORY) { image_memory_t *image_memory = image->type_private; - + if (image_memory->cache) + { free(image_memory->cache); + image_memory->cache = NULL; + } } else if (image->type == IMAGE_SRECORD) { image_mot_t *image_mot = image->type_private; - + fileio_close(&image_mot->fileio); - + if (image_mot->buffer) + { free(image_mot->buffer); + image_mot->buffer = NULL; + } } else if (image->type == IMAGE_BUILDER) { int i; - + for (i = 0; i < image->num_sections; i++) { free(image->sections[i].private); + image->sections[i].private = NULL; } } if (image->type_private) + { free(image->type_private); - + image->type_private = NULL; + } + if (image->sections) + { free(image->sections); - + image->sections = NULL; + } +} + +int image_calculate_checksum(uint8_t* buffer, uint32_t nbytes, uint32_t* checksum) +{ + uint32_t crc = 0xffffffff; + LOG_DEBUG("Calculating checksum"); + + uint32_t crc32_table[256]; + + /* Initialize the CRC table and the decoding table. */ + int i, j; + unsigned int c; + for (i = 0; i < 256; i++) + { + /* as per gdb */ + for (c = i << 24, j = 8; j > 0; --j) + c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1); + crc32_table[i] = c; + } + + while (nbytes > 0) + { + int run = nbytes; + if (run > 32768) + { + run = 32768; + } + nbytes -= run; + while (run--) + { + /* as per gdb */ + crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255]; + } + keep_alive(); + } + + LOG_DEBUG("Calculating checksum done"); + + *checksum = crc; return ERROR_OK; }