#include <stdlib.h>
#include <string.h>
+#ifdef HAVE_ELF_H
+#include <elf.h>
+#endif
#include "image.h"
#include "fileio.h"
#include "target.h"
-int image_ihex_buffer_complete(image_t *image)
+/* convert ELF header field to host endianness */
+#define field16(elf, field)\
+ ((elf->endianness == ELFDATA2LSB)? \
+ le_to_h_u16((u8*)&field) : be_to_h_u16((u8*)&field))
+
+#define field32(elf, field)\
+ ((elf->endianness == ELFDATA2LSB)? \
+ le_to_h_u32((u8*)&field) : be_to_h_u32((u8*)&field))
+
+static int autodetect_image_type(image_t *image, char *url)
{
- image_ihex_t *ihex = image->type_private;
- fileio_t *fileio = &ihex->fileio;
- u32 raw_bytes_read, raw_bytes;
int retval;
- u32 full_address = image->base_address;
- char *buffer = malloc(ihex->raw_size);
- u32 cooked_bytes = 0x0;
-
- ihex->raw_size = fileio->size;
- ihex->buffer = malloc(ihex->raw_size >> 1);
-
- if ((retval = fileio_read(fileio, ihex->raw_size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK)
- {
- free(buffer);
- ERROR("failed buffering IHEX file, read failed");
+ fileio_t fileio;
+ u32 read_bytes;
+ u8 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 (raw_bytes_read != ihex->raw_size)
+ if (read_bytes != 9)
{
- free(buffer);
- ERROR("failed buffering complete IHEX file, only partially read");
+ snprintf(image->error_str, IMAGE_MAX_ERROR_STRING, "cannot read image, only partially read");
+ ERROR(image->error_str);
return ERROR_FILEIO_OPERATION_FAILED;
}
-
- image->size = 0x0;
- raw_bytes = 0x0;
- while (raw_bytes < raw_bytes_read)
+ fileio_close(&fileio);
+
+ /* check header against known signatures */
+ if (strncmp((char*)buffer,ELFMAG,SELFMAG)==0)
+ {
+ DEBUG("ELF image detected.");
+ image->type = IMAGE_ELF;
+ }
+ else if ((buffer[0] == ':') /* record start byte */
+ &&(isxdigit(buffer[1]))
+ &&(isxdigit(buffer[2]))
+ &&(isxdigit(buffer[3]))
+ &&(isxdigit(buffer[4]))
+ &&(isxdigit(buffer[5]))
+ &&(isxdigit(buffer[6]))
+ &&(buffer[7] == '0') /* record type : 00 -> 05 */
+ &&(buffer[8] >= '0') && (buffer[8] < '6'))
+ {
+ DEBUG("IHEX image detected.");
+ image->type = IMAGE_IHEX;
+ }
+ else if ((buffer[0] == 'S') /* record start byte */
+ &&(isxdigit(buffer[1]))
+ &&(isxdigit(buffer[2]))
+ &&(isxdigit(buffer[3]))
+ &&(buffer[1] >= '0') && (buffer[1] < '9'))
+ {
+ DEBUG("S19 image detected.");
+ image->type = IMAGE_SRECORD;
+ }
+ else
+ {
+ image->type = IMAGE_BINARY;
+ }
+
+ return ERROR_OK;
+}
+
+int identify_image_type(image_t *image, char *type_string, char *url)
+{
+ if (type_string)
+ {
+ if (!strcmp(type_string, "bin"))
+ {
+ image->type = IMAGE_BINARY;
+ }
+ else if (!strcmp(type_string, "ihex"))
+ {
+ image->type = IMAGE_IHEX;
+ }
+ else if (!strcmp(type_string, "elf"))
+ {
+ image->type = IMAGE_ELF;
+ }
+ else if (!strcmp(type_string, "mem"))
+ {
+ image->type = IMAGE_MEMORY;
+ }
+ else if (!strcmp(type_string, "s19"))
+ {
+ image->type = IMAGE_SRECORD;
+ }
+ else if (!strcmp(type_string, "build"))
+ {
+ image->type = IMAGE_BUILDER;
+ }
+ else
+ {
+ return ERROR_IMAGE_TYPE_UNKNOWN;
+ }
+ }
+ else
+ {
+ return autodetect_image_type(image, url);
+ }
+
+ return ERROR_OK;
+}
+
+int image_ihex_buffer_complete(image_t *image)
+{
+ image_ihex_t *ihex = image->type_private;
+ fileio_t *fileio = &ihex->fileio;
+ u32 full_address = 0x0;
+ u32 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];
+
+ ihex->buffer = malloc(fileio->size >> 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)
{
u32 count;
u32 address;
u32 record_type;
u32 checksum;
-
- if (sscanf(&buffer[raw_bytes], ":%2x%4x%2x", &count, &address, &record_type) != 3)
+ u8 cal_checksum = 0;
+ u32 bytes_read = 0;
+
+ if (sscanf(&lpszLine[bytes_read], ":%2x%4x%2x", &count, &address, &record_type) != 3)
{
return ERROR_IMAGE_FORMAT_ERROR;
}
- raw_bytes += 9;
-
- if (record_type == 0)
+ bytes_read += 9;
+
+ cal_checksum += (u8)count;
+ cal_checksum += (u8)(address >> 8);
+ cal_checksum += (u8)address;
+ cal_checksum += (u8)record_type;
+
+ if (record_type == 0) /* Data Record */
{
if ((full_address & 0xffff) != address)
{
- free(buffer);
- ERROR("can't handle non-linear IHEX file");
- return ERROR_IMAGE_FORMAT_ERROR;
+ /* 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 = &ihex->buffer[cooked_bytes];
+ }
+ section[image->num_sections].base_address =
+ (full_address & 0xffff0000) | address;
+ full_address = (full_address & 0xffff0000) | address;
}
-
+
while (count-- > 0)
{
- sscanf(&buffer[raw_bytes], "%2hhx", &ihex->buffer[cooked_bytes]);
- raw_bytes += 2;
+ sscanf(&lpszLine[bytes_read], "%2x", (u32*)&ihex->buffer[cooked_bytes]);
+ cal_checksum += (u8)ihex->buffer[cooked_bytes];
+ bytes_read += 2;
cooked_bytes += 1;
+ section[image->num_sections].size += 1;
full_address++;
}
}
- else if (record_type == 1)
+ else if (record_type == 1) /* End of File Record */
{
- free(buffer);
- image->size = cooked_bytes;
+ /* finish the current section */
+ image->num_sections++;
+
+ /* copy section information */
+ image->sections = malloc(sizeof(image_section_t) * image->num_sections);
+ for (i = 0; i < image->num_sections; i++)
+ {
+ image->sections[i].private = section[i].private;
+ image->sections[i].base_address = section[i].base_address;
+ image->sections[i].size = section[i].size;
+ image->sections[i].flags = section[i].flags;
+ }
+
return ERROR_OK;
}
- else if (record_type == 4)
+ else if (record_type == 2) /* Linear Address Record */
{
u16 upper_address;
-
- sscanf(&buffer[raw_bytes], "%4hx", &upper_address);
- raw_bytes += 4;
-
+
+ sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
+ cal_checksum += (u8)(upper_address >> 8);
+ cal_checksum += (u8)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++;
+ section[image->num_sections].size = 0x0;
+ section[image->num_sections].flags = 0;
+ section[image->num_sections].private = &ihex->buffer[cooked_bytes];
+ }
+ section[image->num_sections].base_address =
+ (full_address & 0xffff) | (upper_address << 4);
+ full_address = (full_address & 0xffff) | (upper_address << 4);
+ }
+ }
+ else if (record_type == 3) /* Start Segment Address Record */
+ {
+ u32 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;
+ bytes_read += 2;
+ }
+ }
+ else if (record_type == 4) /* Extended Linear Address Record */
+ {
+ u16 upper_address;
+
+ sscanf(&lpszLine[bytes_read], "%4hx", &upper_address);
+ cal_checksum += (u8)(upper_address >> 8);
+ cal_checksum += (u8)upper_address;
+ bytes_read += 4;
+
if ((full_address >> 16) != upper_address)
{
- free(buffer);
- ERROR("can't handle non-linear IHEX file");
- return ERROR_IMAGE_FORMAT_ERROR;
+ /* 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 = &ihex->buffer[cooked_bytes];
+ }
+ 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)
+ else if (record_type == 5) /* Start Linear Address Record */
{
u32 start_address;
-
- sscanf(&buffer[raw_bytes], "%8x", &start_address);
- raw_bytes += 8;
-
+
+ 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;
+ bytes_read += 8;
+
image->start_address_set = 1;
image->start_address = be_to_h_u32((u8*)&start_address);
}
else
{
- free(buffer);
ERROR("unhandled IHEX record type: %i", record_type);
return ERROR_IMAGE_FORMAT_ERROR;
}
-
- sscanf(&buffer[raw_bytes], "%2x", &checksum);
- raw_bytes += 2;
-
- /* consume new-line character(s) */
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
- if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
- raw_bytes++;
+ sscanf(&lpszLine[bytes_read], "%2x", &checksum);
+ bytes_read += 2;
+
+ if ((u8)checksum != (u8)(~cal_checksum + 1))
+ {
+ /* checksum failed */
+ ERROR("incorrect record checksum found in IHEX file");
+ return ERROR_IMAGE_CHECKSUM;
+ }
}
- free(buffer);
ERROR("premature end of IHEX file, no end-of-file record found");
return ERROR_IMAGE_FORMAT_ERROR;
}
-int image_open(image_t *image, void *source, enum fileio_access access)
+int image_elf_read_headers(image_t *image)
+{
+ image_elf_t *elf = image->type_private;
+ u32 read_bytes;
+ u32 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)
+ {
+ 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");
+ return ERROR_FILEIO_OPERATION_FAILED;
+ }
+
+ if (strncmp((char*)elf->header->e_ident,ELFMAG,SELFMAG) != 0)
+ {
+ ERROR("invalid ELF file, bad magic number");
+ return ERROR_IMAGE_FORMAT_ERROR;
+ }
+ if (elf->header->e_ident[EI_CLASS] != ELFCLASS32)
+ {
+ ERROR("invalid ELF file, only 32bits files are supported");
+ 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");
+ return ERROR_IMAGE_FORMAT_ERROR;
+ }
+
+ elf->segment_count = field16(elf, elf->header->e_phnum);
+ if (elf->segment_count == 0)
+ {
+ ERROR("invalid ELF file, no program headers");
+ return ERROR_IMAGE_FORMAT_ERROR;
+ }
+
+ elf->segments = malloc(elf->segment_count * sizeof(Elf32_Phdr));
+
+ if ((retval = fileio_read(&elf->fileio, elf->segment_count * sizeof(Elf32_Phdr), (u8*)elf->segments, &read_bytes)) != ERROR_OK)
+ {
+ ERROR("cannot read ELF segment headers, read failed");
+ return retval;
+ }
+ if (read_bytes != elf->segment_count * sizeof(Elf32_Phdr))
+ {
+ ERROR("cannot read ELF segment headers, only partially read");
+ return ERROR_FILEIO_OPERATION_FAILED;
+ }
+
+ /* count useful segments (loadable), ignore BSS section */
+ image->num_sections = 0;
+ 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++)
+ {
+ if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0))
+ {
+ image->sections[j].size = field32(elf, elf->segments[i].p_memsz);
+ image->sections[j].base_address = field32(elf, elf->segments[i].p_paddr);
+ image->sections[j].private = &elf->segments[i];
+ image->sections[j].flags = field32(elf, elf->segments[i].p_flags);
+ j++;
+ }
+ }
+
+ image->start_address_set = 1;
+ image->start_address = field32(elf, elf->header->e_entry);
+
+ return ERROR_OK;
+}
+
+int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *size_read)
+{
+ image_elf_t *elf = image->type_private;
+ Elf32_Phdr *segment = (Elf32_Phdr *)image->sections[section].private;
+ u32 read_size, really_read;
+ int retval;
+
+ *size_read = 0;
+
+ DEBUG("load segment %d at 0x%x (sz = 0x%x)", section, offset, size);
+
+ /* read initialized data in current segment if any */
+ 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 initialized area of the segment */
+ if ((retval = fileio_seek(&elf->fileio, field32(elf, segment->p_offset) + offset)) != ERROR_OK)
+ {
+ 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");
+ return retval;
+ }
+ buffer += read_size;
+ size -= read_size;
+ offset += read_size;
+ *size_read += read_size;
+ /* need more data ? */
+ if (!size)
+ return ERROR_OK;
+ }
+
+ return ERROR_OK;
+}
+
+int image_mot_buffer_complete(image_t *image)
+{
+ image_mot_t *mot = image->type_private;
+ fileio_t *fileio = &mot->fileio;
+ u32 full_address = 0x0;
+ u32 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];
+
+ mot->buffer = malloc(fileio->size >> 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)
+ {
+ u32 count;
+ u32 address;
+ u32 record_type;
+ u32 checksum;
+ u8 cal_checksum = 0;
+ u32 bytes_read = 0;
+
+ /* get record type and record length */
+ if (sscanf(&lpszLine[bytes_read], "S%1x%2x", &record_type, &count) != 2)
+ {
+ return ERROR_IMAGE_FORMAT_ERROR;
+ }
+
+ bytes_read += 4;
+ cal_checksum += (u8)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 += (u8)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], "%4x", &address);
+ cal_checksum += (u8)(address >> 8);
+ cal_checksum += (u8)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;
+ 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;
+ bytes_read += 8;
+ count -=4;
+ break;
+ }
+
+ 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)
+ {
+ sscanf(&lpszLine[bytes_read], "%2x", (u32*)&mot->buffer[cooked_bytes]);
+ cal_checksum += (u8)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 */
+ u32 dummy;
+
+ while (count-- > 0)
+ {
+ sscanf(&lpszLine[bytes_read], "%2x", &dummy);
+ cal_checksum += (u8)dummy;
+ bytes_read += 2;
+ }
+ }
+ else if (record_type >= 7 && record_type <= 9)
+ {
+ /* S7, S8, S9 - ending records for 32, 24 and 16bit */
+ image->num_sections++;
+
+ /* copy section information */
+ image->sections = malloc(sizeof(image_section_t) * image->num_sections);
+ for (i = 0; i < image->num_sections; i++)
+ {
+ image->sections[i].private = section[i].private;
+ image->sections[i].base_address = section[i].base_address;
+ image->sections[i].size = section[i].size;
+ image->sections[i].flags = section[i].flags;
+ }
+
+ return ERROR_OK;
+ }
+ else
+ {
+ ERROR("unhandled S19 record type: %i", record_type);
+ return ERROR_IMAGE_FORMAT_ERROR;
+ }
+
+ /* account for checksum, will always be 0xFF */
+ sscanf(&lpszLine[bytes_read], "%2x", &checksum);
+ cal_checksum += (u8)checksum;
+ bytes_read += 2;
+
+ if( cal_checksum != 0xFF )
+ {
+ /* checksum failed */
+ ERROR("incorrect record checksum found in S19 file");
+ return ERROR_IMAGE_CHECKSUM;
+ }
+ }
+
+ 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 retval = ERROR_OK;
-
+
+ if ((retval = identify_image_type(image, type_string, url)) != ERROR_OK)
+ {
+ return retval;
+ }
+
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary;
- char *url = source;
-
+
image_binary = image->type_private = malloc(sizeof(image_binary_t));
-
- if ((retval = fileio_open(&image_binary->fileio, url, access, FILEIO_BINARY)) != ERROR_OK)
+
+ 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);
+ strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
ERROR(image->error_str);
return retval;
}
-
- if (access == FILEIO_WRITE)
- image->size = 0;
- else
- image->size = image_binary->fileio.size;
-
- return ERROR_OK;
+
+ image->num_sections = 1;
+ image->sections = malloc(sizeof(image_section_t));
+ image->sections[0].base_address = 0x0;
+ image->sections[0].size = image_binary->fileio.size;
+ image->sections[0].flags = 0;
}
else if (image->type == IMAGE_IHEX)
{
image_ihex_t *image_ihex;
- char *url = source;
-
- if (access != FILEIO_READ)
- {
- snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
- "can't open IHEX file for writing");
- ERROR(image->error_str);
- return ERROR_FILEIO_ACCESS_NOT_SUPPORTED;
- }
-
+
image_ihex = image->type_private = malloc(sizeof(image_ihex_t));
-
+
if ((retval = fileio_open(&image_ihex->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
{
- strncpy(image->error_str, image_ihex->fileio.error_str, IMAGE_MAX_ERROR_STRING);
+ strncpy(image->error_str, image_ihex->fileio.error_str, IMAGE_MAX_ERROR_STRING);
ERROR(image->error_str);
return retval;
}
-
- image_ihex->position = 0;
- image_ihex->raw_size = image_ihex->fileio.size;
-
+
if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK)
{
snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
return retval;
}
}
+ else if (image->type == IMAGE_ELF)
+ {
+ image_elf_t *image_elf;
+
+ image_elf = image->type_private = malloc(sizeof(image_elf_t));
+
+ if ((retval = fileio_open(&image_elf->fileio, url, FILEIO_READ, FILEIO_BINARY)) != ERROR_OK)
+ {
+ strncpy(image->error_str, image_elf->fileio.error_str, IMAGE_MAX_ERROR_STRING);
+ ERROR(image->error_str);
+ return retval;
+ }
+
+ if ((retval = image_elf_read_headers(image)) != ERROR_OK)
+ {
+ snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
+ "failed to read ELF headers, check daemon output for additional information");
+ ERROR(image->error_str);
+ fileio_close(&image_elf->fileio);
+ return retval;
+ }
+ }
else if (image->type == IMAGE_MEMORY)
{
image_memory_t *image_memory;
- target_t *target = source;
-
+
+ image->num_sections = 1;
+ image->sections = malloc(sizeof(image_section_t));
+ image->sections[0].base_address = 0x0;
+ image->sections[0].size = 0xffffffff;
+ image->sections[0].flags = 0;
+
image_memory = image->type_private = malloc(sizeof(image_memory_t));
-
- image_memory->target = target;
+
+ image_memory->target = get_target_by_num(strtoul(url, NULL, 0));;
+ image_memory->cache = NULL;
+ image_memory->cache_address = 0x0;
}
-
+ else if (image->type == IMAGE_SRECORD)
+ {
+ image_mot_t *image_mot;
+
+ image_mot = image->type_private = malloc(sizeof(image_mot_t));
+
+ if ((retval = fileio_open(&image_mot->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
+ {
+ strncpy(image->error_str, image_mot->fileio.error_str, IMAGE_MAX_ERROR_STRING);
+ ERROR(image->error_str);
+ return retval;
+ }
+
+ if ((retval = image_mot_buffer_complete(image)) != ERROR_OK)
+ {
+ snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
+ "failed buffering S19 image, check daemon output for additional information");
+ ERROR(image->error_str);
+ fileio_close(&image_mot->fileio);
+ return retval;
+ }
+ }
+ else if (image->type == IMAGE_BUILDER)
+ {
+ image->num_sections = 0;
+ image->sections = NULL;
+ image->type_private = NULL;
+ }
+
+ if (image->base_address_set)
+ {
+ /* relocate */
+ int section;
+ for (section = 0; section < image->num_sections; section++)
+ {
+ image->sections[section].base_address += image->base_address;
+ }
+ /* we're done relocating. The two statements below are mainly
+ * for documenation purposes: stop anyone from empirically
+ * thinking they should use these values henceforth. */
+ image->base_address = 0;
+ image->base_address_set = 0;
+ }
+
return retval;
};
-int image_read(image_t *image, u32 size, u8 *buffer, u32 *size_read)
+int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *buffer, u32 *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",
+ offset, size, image->sections[section].size);
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary = image->type_private;
-
+
+ /* only one section in a plain binary */
+ if (section != 0)
+ return ERROR_INVALID_ARGUMENTS;
+
+ /* seek to offset */
+ if ((retval = fileio_seek(&image_binary->fileio, offset)) != ERROR_OK)
+ {
+ strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
+ return retval;
+ }
+
+ /* return requested bytes */
if ((retval = fileio_read(&image_binary->fileio, size, buffer, size_read)) != ERROR_OK)
{
strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
}
else if (image->type == IMAGE_IHEX)
{
- image_ihex_t *image_ihex = image->type_private;
-
- if ((image_ihex->position + size) > image->size)
+ memcpy(buffer, (u8*)image->sections[section].private + offset, size);
+ *size_read = size;
+ image->error_str[0] = '\0';
+
+ return ERROR_OK;
+ }
+ else if (image->type == IMAGE_ELF)
+ {
+ return image_elf_read_section(image, section, offset, size, buffer, size_read);
+ }
+ else if (image->type == IMAGE_MEMORY)
+ {
+ image_memory_t *image_memory = image->type_private;
+ u32 address = image->sections[section].base_address + offset;
+
+ *size_read = 0;
+
+ while ((size - *size_read) > 0)
{
- /* don't read past the end of the file */
- size = (image->size - image_ihex->position);
+ u32 size_in_cache;
+
+ if (!image_memory->cache
+ || (address < image_memory->cache_address)
+ || (address >= (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE)))
+ {
+ if (!image_memory->cache)
+ image_memory->cache = malloc(IMAGE_MEMORY_CACHE_SIZE);
+
+ if (target_read_buffer(image_memory->target, address & ~(IMAGE_MEMORY_CACHE_SIZE - 1),
+ IMAGE_MEMORY_CACHE_SIZE, image_memory->cache) != ERROR_OK)
+ {
+ free(image_memory->cache);
+ image_memory->cache = NULL;
+ return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
+ }
+ image_memory->cache_address = address & ~(IMAGE_MEMORY_CACHE_SIZE - 1);
+ }
+
+ size_in_cache = (image_memory->cache_address + IMAGE_MEMORY_CACHE_SIZE) - address;
+
+ memcpy(buffer + *size_read,
+ image_memory->cache + (address - image_memory->cache_address),
+ (size_in_cache > size) ? size : size_in_cache
+ );
+
+ *size_read += (size_in_cache > size) ? size : size_in_cache;
+ address += (size_in_cache > size) ? size : size_in_cache;
}
-
- memcpy(buffer, image_ihex->buffer + image_ihex->position, size);
- image_ihex->position += size;
+ }
+ else if (image->type == IMAGE_SRECORD)
+ {
+ memcpy(buffer, (u8*)image->sections[section].private + offset, size);
*size_read = size;
image->error_str[0] = '\0';
-
+
return ERROR_OK;
}
- else if (image->type == IMAGE_MEMORY)
+ else if (image->type == IMAGE_BUILDER)
{
- /* TODO: handle target memory pseudo image */
+ memcpy(buffer, (u8*)image->sections[section].private + offset, size);
+ *size_read = size;
+ image->error_str[0] = '\0';
+
+ return ERROR_OK;
}
-
+
return ERROR_OK;
}
-int image_write(image_t *image, u32 size, u8 *buffer, u32 *size_written)
+int image_add_section(image_t *image, u32 base, u32 size, int flags, u8 *data)
{
- int retval = ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
-
- if (image->type == IMAGE_BINARY)
+ image_section_t *section;
+
+ /* only image builder supports adding sections */
+ if (image->type != IMAGE_BUILDER)
+ return ERROR_INVALID_ARGUMENTS;
+
+ /* see if there's a previous section */
+ if (image->num_sections)
{
- image_binary_t *image_binary = image->type_private;
-
- if ((retval = fileio_write(&image_binary->fileio, size, buffer, size_written)) != ERROR_OK)
+ section = &image->sections[image->num_sections - 1];
+
+ /* see if it's enough to extend the last section,
+ * adding data to previous sections or merging is not supported */
+ if (((section->base_address + section->size) == base) && (section->flags == flags))
{
- strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
- return retval;
+ section->private = realloc(section->private, section->size + size);
+ memcpy((u8*)section->private + section->size, data, size);
+ section->size += size;
+ return ERROR_OK;
}
}
- else if (image->type == IMAGE_IHEX)
- {
- return ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
- }
- else if (image->type == IMAGE_MEMORY)
- {
- /* TODO: handle target memory pseudo image */
- }
-
- if (retval != ERROR_OK)
- return retval;
-
- image->size += size;
-
+
+ /* allocate new section */
+ image->num_sections++;
+ image->sections = realloc(image->sections, sizeof(image_section_t) * 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);
+
return ERROR_OK;
}
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary = image->type_private;
-
+
fileio_close(&image_binary->fileio);
}
else if (image->type == IMAGE_IHEX)
{
image_ihex_t *image_ihex = image->type_private;
-
+
fileio_close(&image_ihex->fileio);
-
+
if (image_ihex->buffer)
+ {
free(image_ihex->buffer);
+ image_ihex->buffer = NULL;
+ }
+ }
+ else if (image->type == IMAGE_ELF)
+ {
+ image_elf_t *image_elf = image->type_private;
+
+ fileio_close(&image_elf->fileio);
+
+ if (image_elf->header)
+ {
+ free(image_elf->header);
+ image_elf->header = NULL;
+ }
+
+ if (image_elf->segments)
+ {
+ free(image_elf->segments);
+ image_elf->segments = NULL;
+ }
}
else if (image->type == IMAGE_MEMORY)
{
- /* do nothing for now */
+ image_memory_t *image_memory = image->type_private;
+
+ if (image_memory->cache)
+ {
+ free(image_memory->cache);
+ image_memory->cache = NULL;
+ }
}
+ else if (image->type == IMAGE_SRECORD)
+ {
+ image_mot_t *image_mot = image->type_private;
- free(image->type_private);
-
- return ERROR_OK;
-}
+ fileio_close(&image_mot->fileio);
-int identify_image_type(image_type_t *type, char *type_string)
-{
- if (type_string)
- {
- if (!strcmp(type_string, "bin"))
+ if (image_mot->buffer)
{
- *type = IMAGE_BINARY;
+ free(image_mot->buffer);
+ image_mot->buffer = NULL;
}
- else if (!strcmp(type_string, "ihex"))
+ }
+ else if (image->type == IMAGE_BUILDER)
+ {
+ int i;
+
+ for (i = 0; i < image->num_sections; i++)
{
- *type = IMAGE_IHEX;
+ free(image->sections[i].private);
+ image->sections[i].private = NULL;
}
- else
+ }
+
+ if (image->type_private)
+ {
+ free(image->type_private);
+ image->type_private = NULL;
+ }
+
+ if (image->sections)
+ {
+ 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)
+{
+ u32 crc = 0xffffffff;
+
+ if (!crc32_table[1])
+ {
+ /* Initialize the CRC table and the decoding table. */
+ int i, j;
+ unsigned int c;
+ for (i = 0; i < 256; i++)
{
- return ERROR_IMAGE_TYPE_UNKNOWN;
+ /* as per gdb */
+ for (c = i << 24, j = 8; j > 0; --j)
+ c = c & 0x80000000 ? (c << 1) ^ 0x04c11db7 : (c << 1);
+ crc32_table[i] = c;
}
}
- else
+
+ while (nbytes--)
{
- *type = IMAGE_BINARY;
+ /* as per gdb */
+ crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buffer++) & 255];
}
-
+
+ *checksum = crc;
return ERROR_OK;
}
+
+
Code Review / openocd.git / blobdiff