target_t -> struct target
[fw/openocd] / src / target / image.c
index a457b567b450bcc5521b427c87202a901908c37c..bba4675ff2806476f7d5a5a261e9238e1f62013c 100644 (file)
@@ -2,6 +2,15 @@
  *   Copyright (C) 2007 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   Copyright (C) 2007,2008 Ã˜yvind 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     *
 #include "config.h"
 #endif
 
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_ELF_H
-#include <elf.h>
-#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)\
+#define field16(elf,field)\
        ((elf->endianness == ELFDATA2LSB)? \
-               le_to_h_u16((u8*)&field) : be_to_h_u16((u8*)&field))
+               le_to_h_u16((uint8_t*)&field):be_to_h_u16((uint8_t*)&field))
 
-#define field32(elf, field)\
+#define field32(elf,field)\
        ((elf->endianness == ELFDATA2LSB)? \
-               le_to_h_u32((u8*)&field) : be_to_h_u32((u8*)&field))
+               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(struct image *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'))
+       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.");
+               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(struct image *image, const char *type_string, const char *url)
 {
        if (type_string)
        {
@@ -150,18 +147,18 @@ int identify_image_type(image_t *image, char *type_string, char *url)
        return ERROR_OK;
 }
 
-int image_ihex_buffer_complete(image_t *image)
+static int image_ihex_buffer_complete(struct image *image)
 {
-       image_ihex_t *ihex = image->type_private;
-       fileio_t *fileio = &ihex->fileio;
-       u32 full_address = 0x0;
-       u32 cooked_bytes;
+       struct image_ihex *ihex = image->type_private;
+       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];
+       struct imageection section[IMAGE_MAX_SECTIONS];
 
        ihex->buffer = malloc(fileio->size >> 1);
        cooked_bytes = 0x0;
@@ -173,23 +170,23 @@ int image_ihex_buffer_complete(image_t *image)
 
        while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
        {
-               u32 count;
-               u32 address;
-               u32 record_type;
-               u32 checksum;
-               u8 cal_checksum = 0;
-               u32 bytes_read = 0;
-
-               if (sscanf(&lpszLine[bytes_read], ":%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;
                }
                bytes_read += 9;
 
-               cal_checksum += (u8)count;
-               cal_checksum += (u8)(address >> 8);
-               cal_checksum += (u8)address;
-               cal_checksum += (u8)record_type;
+               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 */
                {
@@ -202,6 +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];
@@ -213,8 +216,10 @@ int image_ihex_buffer_complete(image_t *image)
 
                        while (count-- > 0)
                        {
-                               sscanf(&lpszLine[bytes_read], "%2x", (u32*)&ihex->buffer[cooked_bytes]);
-                               cal_checksum += (u8)ihex->buffer[cooked_bytes];
+                               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;
@@ -227,7 +232,7 @@ int image_ihex_buffer_complete(image_t *image)
                        image->num_sections++;
 
                        /* copy section information */
-                       image->sections = malloc(sizeof(image_section_t) * image->num_sections);
+                       image->sections = malloc(sizeof(struct imageection) * image->num_sections);
                        for (i = 0; i < image->num_sections; i++)
                        {
                                image->sections[i].private = section[i].private;
@@ -240,11 +245,11 @@ int image_ihex_buffer_complete(image_t *image)
                }
                else if (record_type == 2) /* Linear Address Record */
                {
-                       u16 upper_address;
+                       uint16_t upper_address;
 
                        sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
-                       cal_checksum += (u8)(upper_address >> 8);
-                       cal_checksum += (u8)upper_address;
+                       cal_checksum += (uint8_t)(upper_address >> 8);
+                       cal_checksum += (uint8_t)upper_address;
                        bytes_read += 4;
 
                        if ((full_address >> 4) != upper_address)
@@ -256,6 +261,12 @@ 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];
@@ -267,24 +278,24 @@ int image_ihex_buffer_complete(image_t *image)
                }
                else if (record_type == 3) /* Start Segment Address Record */
                {
-                       u32 dummy;
+                       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], "%2x", &dummy);
-                               cal_checksum += (u8)dummy;
+                               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;
+                       uint16_t upper_address;
 
                        sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
-                       cal_checksum += (u8)(upper_address >> 8);
-                       cal_checksum += (u8)upper_address;
+                       cal_checksum += (uint8_t)(upper_address >> 8);
+                       cal_checksum += (uint8_t)upper_address;
                        bytes_read += 4;
 
                        if ((full_address >> 16) != upper_address)
@@ -296,6 +307,12 @@ 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];
@@ -307,151 +324,167 @@ int image_ihex_buffer_complete(image_t *image)
                }
                else if (record_type == 5) /* Start Linear Address Record */
                {
-                       u32 start_address;
+                       uint32_t start_address;
 
-                       sscanf(&lpszLine[bytes_read], "%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;
+                       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
                {
-                       ERROR("unhandled IHEX record type: %i", record_type);
+                 LOG_ERROR("unhandled IHEX record type: %i", (int)record_type);
                        return ERROR_IMAGE_FORMAT_ERROR;
                }
 
-               sscanf(&lpszLine[bytes_read], "%2x", &checksum);
+               sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &checksum);
                bytes_read += 2;
 
-               if ((u8)checksum != (u8)(~cal_checksum + 1))
+               if ((uint8_t)checksum != (uint8_t)(~cal_checksum + 1))
                {
                        /* checksum failed */
-                       ERROR("incorrect record checksum found in IHEX file");
+                       LOG_ERROR("incorrect record checksum found in IHEX file");
                        return ERROR_IMAGE_CHECKSUM;
                }
        }
 
-       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(struct image *image)
 {
-       image_elf_t *elf = image->type_private;
-       u32 read_bytes;
-       u32 i,j;
+       struct image_elf *elf = image->type_private;
+       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)
        {
-               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)
+       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))
        {
-               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);
+       elf->segment_count = field16(elf,elf->header->e_phnum);
        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;
        }
 
-       elf->segments = malloc(elf->segment_count * sizeof(Elf32_Phdr));
+       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;
+       }
 
-       if ((retval = fileio_read(&elf->fileio, elf->segment_count * sizeof(Elf32_Phdr), (u8*)elf->segments, &read_bytes)) != ERROR_OK)
+       elf->segments = malloc(elf->segment_count*sizeof(Elf32_Phdr));
+       if (elf->segments == NULL)
        {
-               ERROR("cannot read ELF segment headers, read failed");
+               LOG_ERROR("insufficient memory to perform operation ");
+               return ERROR_FILEIO_OPERATION_FAILED;
+       }
+
+       if ((retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr), (uint8_t*)elf->segments, &read_bytes)) != ERROR_OK)
+       {
+               LOG_ERROR("cannot read ELF segment headers, read failed");
                return retval;
        }
-       if (read_bytes != elf->segment_count * sizeof(Elf32_Phdr))
+       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; i < elf->segment_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; i < elf->segment_count; i++)
+       image->sections = malloc(image->num_sections * sizeof(struct imageection));
+       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_filesz);
-                       image->sections[j].base_address = field32(elf, elf->segments[i].p_paddr);
+                       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);
+                       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);
+       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(struct image *image, int section, uint32_t offset, uint32_t size, uint8_t *buffer, uint32_t *size_read)
 {
-       image_elf_t *elf = image->type_private;
+       struct image_elf *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 (offset < field32(elf, segment->p_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);
+               read_size = MIN(size, field32(elf,segment->p_filesz)-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;
@@ -466,18 +499,18 @@ int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8
        return ERROR_OK;
 }
 
-int image_mot_buffer_complete(image_t *image)
+static int image_mot_buffer_complete(struct image *image)
 {
-       image_mot_t *mot = image->type_private;
-       fileio_t *fileio = &mot->fileio;
-       u32 full_address = 0x0;
-       u32 cooked_bytes;
+       struct image_mot *mot = image->type_private;
+       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];
+       struct imageection section[IMAGE_MAX_SECTIONS];
 
        mot->buffer = malloc(fileio->size >> 1);
        cooked_bytes = 0x0;
@@ -489,21 +522,21 @@ int image_mot_buffer_complete(image_t *image)
 
        while (fileio_fgets(fileio, 1023, lpszLine) == ERROR_OK)
        {
-               u32 count;
-               u32 address;
-               u32 record_type;
-               u32 checksum;
-               u8 cal_checksum = 0;
-               u32 bytes_read = 0;
+               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(&lpszLine[bytes_read], "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;
                }
 
                bytes_read += 4;
-               cal_checksum += (u8)count;
+               cal_checksum += (uint8_t)count;
 
                /* skip checksum byte */
                count -=1;
@@ -515,43 +548,44 @@ int image_mot_buffer_complete(image_t *image)
 
                        while (count-- > 0) {
                                sscanf(&lpszLine[bytes_read], "%2x", &iValue);
-                               cal_checksum += (u8)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(&lpszLine[bytes_read], "%4x", &address);
-                                       cal_checksum += (u8)(address >> 8);
-                                       cal_checksum += (u8)address;
+                                       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(&lpszLine[bytes_read], "%6x", &address);
-                                       cal_checksum += (u8)(address >> 16);
-                                       cal_checksum += (u8)(address >> 8);
-                                       cal_checksum += (u8)address;
+                                       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(&lpszLine[bytes_read], "%8x", &address);
-                                       cal_checksum += (u8)(address >> 24);
-                                       cal_checksum += (u8)(address >> 16);
-                                       cal_checksum += (u8)(address >> 8);
-                                       cal_checksum += (u8)address;
+                                       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)
@@ -573,8 +607,10 @@ int image_mot_buffer_complete(image_t *image)
 
                        while (count-- > 0)
                        {
-                               sscanf(&lpszLine[bytes_read], "%2x", (u32*)&mot->buffer[cooked_bytes]);
-                               cal_checksum += (u8)mot->buffer[cooked_bytes];
+                               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;
@@ -584,12 +620,12 @@ int image_mot_buffer_complete(image_t *image)
                else if (record_type == 5)
                {
                        /* S5 is the data count record, we ignore it */
-                       u32 dummy;
+                       uint32_t dummy;
 
                        while (count-- > 0)
                        {
-                               sscanf(&lpszLine[bytes_read], "%2x", &dummy);
-                               cal_checksum += (u8)dummy;
+                               sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &dummy);
+                               cal_checksum += (uint8_t)dummy;
                                bytes_read += 2;
                        }
                }
@@ -599,7 +635,7 @@ int image_mot_buffer_complete(image_t *image)
                        image->num_sections++;
 
                        /* copy section information */
-                       image->sections = malloc(sizeof(image_section_t) * image->num_sections);
+                       image->sections = malloc(sizeof(struct imageection) * image->num_sections);
                        for (i = 0; i < image->num_sections; i++)
                        {
                                image->sections[i].private = section[i].private;
@@ -612,28 +648,28 @@ int image_mot_buffer_complete(image_t *image)
                }
                else
                {
-                       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(&lpszLine[bytes_read], "%2x", &checksum);
-               cal_checksum += (u8)checksum;
+               sscanf(&lpszLine[bytes_read], "%2" SCNx32 , &checksum);
+               cal_checksum += (uint8_t)checksum;
                bytes_read += 2;
 
-               if( cal_checksum != 0xFF )
+               if (cal_checksum != 0xFF)
                {
                        /* checksum failed */
-                       ERROR("incorrect record checksum found in S19 file");
+                       LOG_ERROR("incorrect record checksum found in S19 file");
                        return ERROR_IMAGE_CHECKSUM;
                }
        }
 
-       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(struct image *image, const char *url, const char *type_string)
 {
        int retval = ERROR_OK;
 
@@ -644,101 +680,94 @@ int image_open(image_t *image, char *url, char *type_string)
 
        if (image->type == IMAGE_BINARY)
        {
-               image_binary_t *image_binary;
+               struct image_binary *image_binary;
 
-               image_binary = image->type_private = malloc(sizeof(image_binary_t));
+               image_binary = image->type_private = malloc(sizeof(struct image_binary));
 
                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 = malloc(sizeof(struct imageection));
                image->sections[0].base_address = 0x0;
                image->sections[0].size = image_binary->fileio.size;
                image->sections[0].flags = 0;
        }
        else if (image->type == IMAGE_IHEX)
        {
-               image_ihex_t *image_ihex;
+               struct image_ihex *image_ihex;
 
-               image_ihex = image->type_private = malloc(sizeof(image_ihex_t));
+               image_ihex = image->type_private = malloc(sizeof(struct image_ihex));
 
                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;
                }
        }
        else if (image->type == IMAGE_ELF)
        {
-               image_elf_t *image_elf;
+               struct image_elf *image_elf;
 
-               image_elf = image->type_private = malloc(sizeof(image_elf_t));
+               image_elf = image->type_private = malloc(sizeof(struct image_elf));
 
                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)
        {
-               image_memory_t *image_memory;
+               struct target *target = get_target(url);
+
+               if (target == NULL)
+               {
+                       LOG_ERROR("target '%s' not defined", url);
+                       return ERROR_FAIL;
+               }
+
+               struct image_memory *image_memory;
 
                image->num_sections = 1;
-               image->sections = malloc(sizeof(image_section_t));
+               image->sections = malloc(sizeof(struct imageection));
                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 = image->type_private = malloc(sizeof(struct image_memory));
 
-               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;
+               struct image_mot *image_mot;
 
-               image_mot = image->type_private = malloc(sizeof(image_mot_t));
+               image_mot = image->type_private = malloc(sizeof(struct image_mot));
 
                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;
                }
@@ -768,21 +797,21 @@ int image_open(image_t *image, char *url, char *type_string)
        return retval;
 };
 
-int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read)
+int image_read_section(struct image *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;
        }
 
        if (image->type == IMAGE_BINARY)
        {
-               image_binary_t *image_binary = image->type_private;
+               struct image_binary *image_binary = image->type_private;
 
                /* only one section in a plain binary */
                if (section != 0)
@@ -791,22 +820,19 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
                /* 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;
        }
@@ -816,14 +842,14 @@ 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;
+               struct image_memory *image_memory = image->type_private;
+               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)
@@ -847,7 +873,7 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
                        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;
@@ -855,17 +881,15 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        }
        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;
        }
@@ -873,9 +897,9 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        return ERROR_OK;
 }
 
-int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data)
+int image_add_section(struct image *image, uint32_t base, uint32_t size, int flags, uint8_t *data)
 {
-       image_section_t *section;
+       struct imageection *section;
 
        /* only image builder supports adding sections */
        if (image->type != IMAGE_BUILDER)
@@ -891,7 +915,7 @@ int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data)
                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;
                }
@@ -899,28 +923,28 @@ int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data)
 
        /* allocate new section */
        image->num_sections++;
-       image->sections = realloc(image->sections, sizeof(image_section_t) * image->num_sections);
+       image->sections = realloc(image->sections, sizeof(struct imageection) * image->num_sections);
        section = &image->sections[image->num_sections - 1];
        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(struct image *image)
 {
        if (image->type == IMAGE_BINARY)
        {
-               image_binary_t *image_binary = image->type_private;
+               struct image_binary *image_binary = image->type_private;
 
                fileio_close(&image_binary->fileio);
        }
        else if (image->type == IMAGE_IHEX)
        {
-               image_ihex_t *image_ihex = image->type_private;
+               struct image_ihex *image_ihex = image->type_private;
 
                fileio_close(&image_ihex->fileio);
 
@@ -932,7 +956,7 @@ int image_close(image_t *image)
        }
        else if (image->type == IMAGE_ELF)
        {
-               image_elf_t *image_elf = image->type_private;
+               struct image_elf *image_elf = image->type_private;
 
                fileio_close(&image_elf->fileio);
 
@@ -950,7 +974,7 @@ int image_close(image_t *image)
        }
        else if (image->type == IMAGE_MEMORY)
        {
-               image_memory_t *image_memory = image->type_private;
+               struct image_memory *image_memory = image->type_private;
 
                if (image_memory->cache)
                {
@@ -960,7 +984,7 @@ int image_close(image_t *image)
        }
        else if (image->type == IMAGE_SRECORD)
        {
-               image_mot_t *image_mot = image->type_private;
+               struct image_mot *image_mot = image->type_private;
 
                fileio_close(&image_mot->fileio);
 
@@ -992,39 +1016,44 @@ int image_close(image_t *image)
                free(image->sections);
                image->sections = NULL;
        }
-
-       return ERROR_OK;
 }
 
-static u32 crc32_table[256] = {0, 0};
-
-int image_calculate_checksum(u8* buffer, u32 nbytes, u32* checksum)
+int image_calculate_checksum(uint8_t* buffer, uint32_t nbytes, uint32_t* checksum)
 {
-       u32 crc = 0xffffffff;
+       uint32_t crc = 0xffffffff;
+       LOG_DEBUG("Calculating checksum");
 
-       if (!crc32_table[1])
+       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++)
        {
-               /* 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 */
-                       for (c = i << 24, j = 8; j > 0; --j)
-                               c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
-                       crc32_table[i] = c;
+                       crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];
                }
+               keep_alive();
        }
 
-       while (nbytes--)
-       {
-               /* as per gdb */
-               crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];
-       }
+       LOG_DEBUG("Calculating checksum done");
 
        *checksum = crc;
        return ERROR_OK;
 }
-
-
-