target/image: make i/j unsigned to avoid ubsan runtime error
[openocd.git] / src / target / image.c
index fa51ce33e49de5f937267c42efd97e122fe5551e..0d98c57b2a5d414edb2e835e0b488fafd315216e 100644 (file)
@@ -22,9 +22,7 @@
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -47,7 +45,7 @@
 static int autodetect_image_type(struct image *image, const char *url)
 {
        int retval;
-       struct fileio fileio;
+       struct fileio *fileio;
        size_t read_bytes;
        uint8_t buffer[9];
 
@@ -55,13 +53,13 @@ static int autodetect_image_type(struct image *image, const char *url)
        retval = fileio_open(&fileio, url, FILEIO_READ, FILEIO_BINARY);
        if (retval != ERROR_OK)
                return retval;
-       retval = fileio_read(&fileio, 9, buffer, &read_bytes);
+       retval = fileio_read(fileio, 9, buffer, &read_bytes);
 
        if (retval == ERROR_OK) {
                if (read_bytes != 9)
                        retval = ERROR_FILEIO_OPERATION_FAILED;
        }
-       fileio_close(&fileio);
+       fileio_close(fileio);
 
        if (retval != ERROR_OK)
                return retval;
@@ -122,9 +120,10 @@ static int image_ihex_buffer_complete_inner(struct image *image,
        struct imagesection *section)
 {
        struct image_ihex *ihex = image->type_private;
-       struct fileio *fileio = &ihex->fileio;
-       uint32_t full_address = 0x0;
+       struct fileio *fileio = ihex->fileio;
+       uint32_t full_address;
        uint32_t cooked_bytes;
+       bool end_rec = false;
        int i;
 
        /* we can't determine the number of sections that we'll have to create ahead of time,
@@ -139,175 +138,190 @@ static int image_ihex_buffer_complete_inner(struct image *image,
        ihex->buffer = malloc(filesize >> 1);
        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 (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;
-               size_t bytes_read = 0;
-
-               if (lpszLine[0] == '#')
-                       continue;
-
-               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 += (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) {
-                               /* 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;
+
+       while (!fileio_feof(fileio)) {
+               full_address = 0x0;
+               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 (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;
+                       size_t bytes_read = 0;
+
+                       /* skip comments and blank lines */
+                       if ((lpszLine[0] == '#') || (strlen(lpszLine + strspn(lpszLine, "\n\t\r ")) == 0))
+                               continue;
+
+                       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 += (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) {
+                                       /* 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].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 & 0xffff0000) | address;
+                                       full_address = (full_address & 0xffff0000) | address;
                                }
-                               section[image->num_sections].base_address =
-                                       (full_address & 0xffff0000) | address;
-                               full_address = (full_address & 0xffff0000) | address;
-                       }
-
-                       while (count-- > 0) {
-                               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++;
-                       }
-               } else if (record_type == 1) {  /* End of File Record */
-                       /* finish the current section */
-                       image->num_sections++;
-
-                       /* copy section information */
-                       image->sections = malloc(sizeof(struct imagesection) * 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->sections[i].size = section[i].size;
-                               image->sections[i].flags = section[i].flags;
-                       }
 
-                       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;
+                               while (count-- > 0) {
+                                       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++;
+                               }
+                       } else if (record_type == 1) {  /* End of File Record */
+                               /* finish the current section */
+                               image->num_sections++;
+
+                               /* copy section information */
+                               image->sections = malloc(sizeof(struct imagesection) * 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->sections[i].size = section[i].size;
+                                       image->sections[i].flags = section[i].flags;
+                               }
 
-                       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;
+                               end_rec = true;
+                               break;
+                       } 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].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);
                                }
-                               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 */
-                       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,
-                                * 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;
+                       } 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 */
+                               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,
+                                        * 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].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 << 16);
+                                       full_address = (full_address & 0xffff) | (upper_address << 16);
                                }
-                               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 */
+                               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((uint8_t *)&start_address);
+                       } else {
+                               LOG_ERROR("unhandled IHEX record type: %i", (int)record_type);
+                               return ERROR_IMAGE_FORMAT_ERROR;
                        }
-               } else if (record_type == 5) {  /* Start Linear Address Record */
-                       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((uint8_t *)&start_address);
-               } else {
-                       LOG_ERROR("unhandled IHEX record type: %i", (int)record_type);
-                       return ERROR_IMAGE_FORMAT_ERROR;
-               }
 
-               sscanf(&lpszLine[bytes_read], "%2" SCNx32, &checksum);
+                       sscanf(&lpszLine[bytes_read], "%2" SCNx32, &checksum);
 
-               if ((uint8_t)checksum != (uint8_t)(~cal_checksum + 1)) {
-                       /* checksum failed */
-                       LOG_ERROR("incorrect record checksum found in IHEX file");
-                       return ERROR_IMAGE_CHECKSUM;
+                       if ((uint8_t)checksum != (uint8_t)(~cal_checksum + 1)) {
+                               /* checksum failed */
+                               LOG_ERROR("incorrect record checksum found in IHEX file");
+                               return ERROR_IMAGE_CHECKSUM;
+                       }
+
+                       if (end_rec) {
+                               end_rec = false;
+                               LOG_WARNING("continuing after end-of-file record: %.40s", lpszLine);
+                       }
                }
        }
 
-       LOG_ERROR("premature end of IHEX file, no end-of-file record found");
-       return ERROR_IMAGE_FORMAT_ERROR;
+       if (end_rec)
+               return ERROR_OK;
+       else {
+               LOG_ERROR("premature end of IHEX file, no matching end-of-file record found");
+               return ERROR_IMAGE_FORMAT_ERROR;
+       }
 }
 
 /**
@@ -352,7 +366,7 @@ static int image_elf_read_headers(struct image *image)
                return ERROR_FILEIO_OPERATION_FAILED;
        }
 
-       retval = fileio_read(&elf->fileio, sizeof(Elf32_Ehdr), (uint8_t *)elf->header, &read_bytes);
+       retval = fileio_read(elf->fileio, sizeof(Elf32_Ehdr), (uint8_t *)elf->header, &read_bytes);
        if (retval != ERROR_OK) {
                LOG_ERROR("cannot read ELF file header, read failed");
                return ERROR_FILEIO_OPERATION_FAILED;
@@ -384,7 +398,7 @@ static int image_elf_read_headers(struct image *image)
                return ERROR_IMAGE_FORMAT_ERROR;
        }
 
-       retval = fileio_seek(&elf->fileio, field32(elf, elf->header->e_phoff));
+       retval = fileio_seek(elf->fileio, field32(elf, elf->header->e_phoff));
        if (retval != ERROR_OK) {
                LOG_ERROR("cannot seek to ELF program header table, read failed");
                return retval;
@@ -396,7 +410,7 @@ static int image_elf_read_headers(struct image *image)
                return ERROR_FILEIO_OPERATION_FAILED;
        }
 
-       retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr),
+       retval = fileio_read(elf->fileio, elf->segment_count*sizeof(Elf32_Phdr),
                        (uint8_t *)elf->segments, &read_bytes);
        if (retval != ERROR_OK) {
                LOG_ERROR("cannot read ELF segment headers, read failed");
@@ -486,12 +500,12 @@ static int image_elf_read_section(struct image *image,
                LOG_DEBUG("read elf: size = 0x%zu at 0x%" PRIx32 "", read_size,
                        field32(elf, segment->p_offset) + offset);
                /* read initialized area of the segment */
-               retval = fileio_seek(&elf->fileio, field32(elf, segment->p_offset) + offset);
+               retval = fileio_seek(elf->fileio, field32(elf, segment->p_offset) + offset);
                if (retval != ERROR_OK) {
                        LOG_ERROR("cannot find ELF segment content, seek failed");
                        return retval;
                }
-               retval = fileio_read(&elf->fileio, read_size, buffer, &really_read);
+               retval = fileio_read(elf->fileio, read_size, buffer, &really_read);
                if (retval != ERROR_OK) {
                        LOG_ERROR("cannot read ELF segment content, read failed");
                        return retval;
@@ -511,9 +525,10 @@ static int image_mot_buffer_complete_inner(struct image *image,
        struct imagesection *section)
 {
        struct image_mot *mot = image->type_private;
-       struct fileio *fileio = &mot->fileio;
-       uint32_t full_address = 0x0;
+       struct fileio *fileio = mot->fileio;
+       uint32_t full_address;
        uint32_t cooked_bytes;
+       bool end_rec = false;
        int i;
 
        /* we can't determine the number of sections that we'll have to create ahead of time,
@@ -528,140 +543,158 @@ static int image_mot_buffer_complete_inner(struct image *image,
        mot->buffer = malloc(filesize >> 1);
        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 (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(&lpszLine[bytes_read], "S%1" SCNx32 "%2" SCNx32, &record_type,
-                       &count) != 2)
-                       return ERROR_IMAGE_FORMAT_ERROR;
-
-               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(&lpszLine[bytes_read], "%2x", &iValue);
-                               cal_checksum += (uint8_t)iValue;
-                               bytes_read += 2;
-                       }
-               } else if (record_type >= 1 && record_type <= 3) {
-                       switch (record_type) {
-                               case 1:
-                                       /* S1 - 16 bit address data record */
-                                       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], "%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], "%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;
 
-                       }
+       while (!fileio_feof(fileio)) {
+               full_address = 0x0;
+               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 (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;
+
+                       /* skip comments and blank lines */
+                       if ((lpszLine[0] == '#') || (strlen(lpszLine + strspn(lpszLine, "\n\t\r ")) == 0))
+                               continue;
+
+                       /* get record type and record length */
+                       if (sscanf(&lpszLine[bytes_read], "S%1" SCNx32 "%2" SCNx32, &record_type,
+                               &count) != 2)
+                               return ERROR_IMAGE_FORMAT_ERROR;
+
+                       bytes_read += 4;
+                       cal_checksum += (uint8_t)count;
 
-                       if (full_address != 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++;
-                                       section[image->num_sections].size = 0x0;
-                                       section[image->num_sections].flags = 0;
-                                       section[image->num_sections].private =
-                                               &mot->buffer[cooked_bytes];
+                       /* skip checksum byte */
+                       count -= 1;
+
+                       if (record_type == 0) {
+                               /* S0 - starting record (optional) */
+                               int iValue;
+
+                               while (count-- > 0) {
+                                       sscanf(&lpszLine[bytes_read], "%2x", &iValue);
+                                       cal_checksum += (uint8_t)iValue;
+                                       bytes_read += 2;
                                }
-                               section[image->num_sections].base_address = address;
-                               full_address = address;
-                       }
+                       } else if (record_type >= 1 && record_type <= 3) {
+                               switch (record_type) {
+                                       case 1:
+                                               /* S1 - 16 bit address data record */
+                                               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], "%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], "%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;
 
-                       while (count-- > 0) {
-                               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(struct imagesection) * 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->sections[i].size = section[i].size;
-                               image->sections[i].flags = section[i].flags;
+                               if (full_address != 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++;
+                                               section[image->num_sections].size = 0x0;
+                                               section[image->num_sections].flags = 0;
+                                               section[image->num_sections].private =
+                                                       &mot->buffer[cooked_bytes];
+                                       }
+                                       section[image->num_sections].base_address = address;
+                                       full_address = address;
+                               }
+
+                               while (count-- > 0) {
+                                       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(struct imagesection) * 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->sections[i].size = section[i].size;
+                                       image->sections[i].flags = section[i].flags;
+                               }
+
+                               end_rec = true;
+                               break;
+                       } else {
+                               LOG_ERROR("unhandled S19 record type: %i", (int)(record_type));
+                               return ERROR_IMAGE_FORMAT_ERROR;
                        }
 
-                       return ERROR_OK;
-               } else {
-                       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], "%2" SCNx32, &checksum);
+                       cal_checksum += (uint8_t)checksum;
 
-               /* account for checksum, will always be 0xFF */
-               sscanf(&lpszLine[bytes_read], "%2" SCNx32, &checksum);
-               cal_checksum += (uint8_t)checksum;
+                       if (cal_checksum != 0xFF) {
+                               /* checksum failed */
+                               LOG_ERROR("incorrect record checksum found in S19 file");
+                               return ERROR_IMAGE_CHECKSUM;
+                       }
 
-               if (cal_checksum != 0xFF) {
-                       /* checksum failed */
-                       LOG_ERROR("incorrect record checksum found in S19 file");
-                       return ERROR_IMAGE_CHECKSUM;
+                       if (end_rec) {
+                               end_rec = false;
+                               LOG_WARNING("continuing after end-of-file record: %.40s", lpszLine);
+                       }
                }
        }
 
-       LOG_ERROR("premature end of S19 file, no end-of-file record found");
-       return ERROR_IMAGE_FORMAT_ERROR;
+       if (end_rec)
+               return ERROR_OK;
+       else {
+               LOG_ERROR("premature end of S19 file, no matching end-of-file record found");
+               return ERROR_IMAGE_FORMAT_ERROR;
+       }
 }
 
 /**
@@ -708,9 +741,9 @@ int image_open(struct image *image, const char *url, const char *type_string)
                if (retval != ERROR_OK)
                        return retval;
                size_t filesize;
-               retval = fileio_size(&image_binary->fileio, &filesize);
+               retval = fileio_size(image_binary->fileio, &filesize);
                if (retval != ERROR_OK) {
-                       fileio_close(&image_binary->fileio);
+                       fileio_close(image_binary->fileio);
                        return retval;
                }
 
@@ -731,8 +764,8 @@ int image_open(struct image *image, const char *url, const char *type_string)
                retval = image_ihex_buffer_complete(image);
                if (retval != ERROR_OK) {
                        LOG_ERROR(
-                               "failed buffering IHEX image, check daemon output for additional information");
-                       fileio_close(&image_ihex->fileio);
+                               "failed buffering IHEX image, check server output for additional information");
+                       fileio_close(image_ihex->fileio);
                        return retval;
                }
        } else if (image->type == IMAGE_ELF) {
@@ -746,7 +779,7 @@ int image_open(struct image *image, const char *url, const char *type_string)
 
                retval = image_elf_read_headers(image);
                if (retval != ERROR_OK) {
-                       fileio_close(&image_elf->fileio);
+                       fileio_close(image_elf->fileio);
                        return retval;
                }
        } else if (image->type == IMAGE_MEMORY) {
@@ -782,8 +815,8 @@ int image_open(struct image *image, const char *url, const char *type_string)
                retval = image_mot_buffer_complete(image);
                if (retval != ERROR_OK) {
                        LOG_ERROR(
-                               "failed buffering S19 image, check daemon output for additional information");
-                       fileio_close(&image_mot->fileio);
+                               "failed buffering S19 image, check server output for additional information");
+                       fileio_close(image_mot->fileio);
                        return retval;
                }
        } else if (image->type == IMAGE_BUILDER) {
@@ -835,12 +868,12 @@ int image_read_section(struct image *image,
                        return ERROR_COMMAND_SYNTAX_ERROR;
 
                /* seek to offset */
-               retval = fileio_seek(&image_binary->fileio, offset);
+               retval = fileio_seek(image_binary->fileio, offset);
                if (retval != ERROR_OK)
                        return retval;
 
                /* return requested bytes */
-               retval = fileio_read(&image_binary->fileio, size, buffer, size_read);
+               retval = fileio_read(image_binary->fileio, size, buffer, size_read);
                if (retval != ERROR_OK)
                        return retval;
        } else if (image->type == IMAGE_IHEX) {
@@ -945,11 +978,11 @@ void image_close(struct image *image)
        if (image->type == IMAGE_BINARY) {
                struct image_binary *image_binary = image->type_private;
 
-               fileio_close(&image_binary->fileio);
+               fileio_close(image_binary->fileio);
        } else if (image->type == IMAGE_IHEX) {
                struct image_ihex *image_ihex = image->type_private;
 
-               fileio_close(&image_ihex->fileio);
+               fileio_close(image_ihex->fileio);
 
                if (image_ihex->buffer) {
                        free(image_ihex->buffer);
@@ -958,7 +991,7 @@ void image_close(struct image *image)
        } else if (image->type == IMAGE_ELF) {
                struct image_elf *image_elf = image->type_private;
 
-               fileio_close(&image_elf->fileio);
+               fileio_close(image_elf->fileio);
 
                if (image_elf->header) {
                        free(image_elf->header);
@@ -979,7 +1012,7 @@ void image_close(struct image *image)
        } else if (image->type == IMAGE_SRECORD) {
                struct image_mot *image_mot = image->type_private;
 
-               fileio_close(&image_mot->fileio);
+               fileio_close(image_mot->fileio);
 
                if (image_mot->buffer) {
                        free(image_mot->buffer);
@@ -1015,8 +1048,7 @@ int image_calculate_checksum(uint8_t *buffer, uint32_t nbytes, uint32_t *checksu
        static bool first_init;
        if (!first_init) {
                /* Initialize the CRC table and the decoding table.  */
-               int i, j;
-               unsigned int c;
+               unsigned int i, j, c;
                for (i = 0; i < 256; i++) {
                        /* as per gdb */
                        for (c = i << 24, j = 8; j > 0; --j)

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