- reverted resume_target to old behaviour
[fw/openocd] / src / target / image.c
index d20f9df270fd96dc4e7ac4ce6c8f573802e46f85..16f328671e8697293d77f1efa80f3e28b15781d6 100644 (file)
@@ -55,28 +55,26 @@ static int autodetect_image_type(image_t *image, char *url)
        /* 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)
        {
-               DEBUG("ELF image detected.");
+               LOG_DEBUG("ELF image detected.");
                image->type = IMAGE_ELF;
        }
        else if  ((buffer[0]==':') /* record start byte */
@@ -89,7 +87,7 @@ static int autodetect_image_type(image_t *image, char *url)
                &&(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 +96,7 @@ 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
@@ -231,8 +229,7 @@ int image_ihex_buffer_complete(image_t *image)
                        for (i = 0; i < image->num_sections; i++)
                        {
                                image->sections[i].private = section[i].private;
-                               image->sections[i].base_address = section[i].base_address +
-                                       ((image->base_address_set) ? image->base_address : 0);
+                               image->sections[i].base_address = section[i].base_address;
                                image->sections[i].size = section[i].size;
                                image->sections[i].flags = section[i].flags;
                        }
@@ -266,6 +263,19 @@ int image_ihex_buffer_complete(image_t *image)
                                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;
@@ -309,7 +319,7 @@ int image_ihex_buffer_complete(image_t *image)
                }
                else
                {
-                       ERROR("unhandled IHEX record type: %i", record_type);
+                       LOG_ERROR("unhandled IHEX record type: %i", record_type);
                        return ERROR_IMAGE_FORMAT_ERROR;
                }
                
@@ -319,12 +329,12 @@ int image_ihex_buffer_complete(image_t *image)
                if ((u8)checksum != (u8)(~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;
 }
 
@@ -337,25 +347,31 @@ int image_elf_read_headers(image_t *image)
 
        elf->header = malloc(sizeof(Elf32_Ehdr));
 
+       if(elf->header == NULL)
+       {
+               LOG_ERROR("insufficient memory to perform operation ");
+               return ERROR_FILEIO_OPERATION_FAILED;
+       }
+
        if ((retval = fileio_read(&elf->fileio, sizeof(Elf32_Ehdr), (u8*)elf->header, &read_bytes)) != ERROR_OK)
        {
-               ERROR("cannot read ELF file header, read failed");
+               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)
        {
-               ERROR("invalid ELF file, only 32bits files are supported");
+               LOG_ERROR("invalid ELF file, only 32bits files are supported");
                return ERROR_IMAGE_FORMAT_ERROR;
        }
 
@@ -364,27 +380,38 @@ int image_elf_read_headers(image_t *image)
        if ((elf->endianness!=ELFDATA2LSB)
                 &&(elf->endianness!=ELFDATA2MSB))
        {
-               ERROR("invalid ELF file, unknown endianess setting");
+               LOG_ERROR("invalid ELF file, unknown endianess setting");
                return ERROR_IMAGE_FORMAT_ERROR;
        }
 
        elf->segment_count = field16(elf,elf->header->e_phnum);
        if (elf->segment_count==0)
        {
-               ERROR("invalid ELF file, no program headers");
+               LOG_ERROR("invalid ELF file, no program headers");
                return ERROR_IMAGE_FORMAT_ERROR;
        }
 
+       if ((retval = fileio_seek(&elf->fileio, field32(elf,elf->header->e_phoff))) != ERROR_OK)
+       {
+               LOG_ERROR("cannot seek to ELF program header table, read failed");
+               return retval;
+       }
+
        elf->segments = malloc(elf->segment_count*sizeof(Elf32_Phdr));
+       if(elf->segments == NULL)
+       {
+               LOG_ERROR("insufficient memory to perform operation ");
+               return ERROR_FILEIO_OPERATION_FAILED;
+       }
 
        if ((retval = fileio_read(&elf->fileio, elf->segment_count*sizeof(Elf32_Phdr), (u8*)elf->segments, &read_bytes)) != ERROR_OK)
        {
-               ERROR("cannot read ELF segment headers, read failed");
+               LOG_ERROR("cannot read ELF segment headers, read failed");
                return retval;
        }
        if (read_bytes != elf->segment_count*sizeof(Elf32_Phdr))
        {
-               ERROR("cannot read ELF segment headers, only partially read");
+               LOG_ERROR("cannot read ELF segment headers, only partially read");
                return ERROR_FILEIO_OPERATION_FAILED;
        }
 
@@ -399,7 +426,7 @@ int image_elf_read_headers(image_t *image)
        {
                if ((field32(elf, elf->segments[i].p_type) == PT_LOAD) && (field32(elf, elf->segments[i].p_filesz) != 0))
                {
-                       image->sections[j].size = field32(elf,elf->segments[i].p_memsz);
+                       image->sections[j].size = field32(elf,elf->segments[i].p_filesz);
                        image->sections[j].base_address = field32(elf,elf->segments[i].p_paddr);
                        image->sections[j].private = &elf->segments[i];
                        image->sections[j].flags = field32(elf,elf->segments[i].p_flags);
@@ -422,24 +449,24 @@ int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8
 
        *size_read = 0;
        
-       DEBUG("load segment %d at 0x%x (sz=0x%x)",section,offset,size);
+       LOG_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,
+               LOG_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");
+                       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;
@@ -450,15 +477,6 @@ int image_elf_read_section(image_t *image, int section, u32 offset, u32 size, u8
                if (!size)
                        return ERROR_OK;
        }
-       /* if there is remaining zeroed area in current segment */
-       if (offset<field32(elf,segment->p_memsz))
-       {
-               /* fill zeroed part (BSS) of the segment */
-               read_size = MIN(size, field32(elf,segment->p_memsz)-offset);
-               DEBUG("zero fill: size = 0x%x",read_size);
-               memset(buffer,0,read_size);
-               *size_read += read_size;
-       }
        
        return ERROR_OK;
 }
@@ -579,6 +597,18 @@ int image_mot_buffer_complete(image_t *image)
                                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 */
@@ -589,8 +619,7 @@ int image_mot_buffer_complete(image_t *image)
                        for (i = 0; i < image->num_sections; i++)
                        {
                                image->sections[i].private = section[i].private;
-                               image->sections[i].base_address = section[i].base_address +
-                                       ((image->base_address_set) ? image->base_address : 0);
+                               image->sections[i].base_address = section[i].base_address;
                                image->sections[i].size = section[i].size;
                                image->sections[i].flags = section[i].flags;
                        }
@@ -599,7 +628,7 @@ int image_mot_buffer_complete(image_t *image)
                }
                else
                {
-                       ERROR("unhandled S19 record type: %i", record_type);
+                       LOG_ERROR("unhandled S19 record type: %i", record_type);
                        return ERROR_IMAGE_FORMAT_ERROR;
                }
                
@@ -611,12 +640,12 @@ int image_mot_buffer_complete(image_t *image)
                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;
 }
 
@@ -637,8 +666,6 @@ int image_open(image_t *image, char *url, char *type_string)
                
                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;
                }
                
@@ -647,11 +674,6 @@ int image_open(image_t *image, char *url, char *type_string)
                image->sections[0].base_address = 0x0;
                image->sections[0].size = image_binary->fileio.size;
                image->sections[0].flags = 0;
-               
-               if (image->base_address_set == 1)
-                       image->sections[0].base_address = image->base_address;
-               
-               return ERROR_OK;
        }
        else if (image->type == IMAGE_IHEX)
        {
@@ -661,16 +683,12 @@ int image_open(image_t *image, char *url, char *type_string)
                
                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;
                }
@@ -683,16 +701,11 @@ int image_open(image_t *image, char *url, char *type_string)
                
                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;
                }
@@ -721,16 +734,12 @@ int image_open(image_t *image, char *url, char *type_string)
                
                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;
                }
@@ -741,6 +750,21 @@ int image_open(image_t *image, char *url, char *type_string)
                image->sections = NULL;
                image->type_private = NULL;
        }
+
+       if (image->base_address_set)
+       {
+               /* relocate */
+               int section;
+               for (section=0; section < image->num_sections; section++)
+               {
+                       image->sections[section].base_address+=image->base_address;
+               }
+               /* we're done relocating. The two statements below are mainly
+                * for documenation purposes: stop anyone from empirically
+                * thinking they should use these values henceforth. */
+               image->base_address=0;
+               image->base_address_set=0;
+       }
        
        return retval;
 };
@@ -752,7 +776,7 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        /* 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%8.8x + 0x%8.8x > 0x%8.8x",
                                offset, size, image->sections[section].size);
                return ERROR_INVALID_ARGUMENTS;
        }
@@ -768,14 +792,12 @@ 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;
                }
        }
@@ -783,7 +805,6 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        {
                memcpy(buffer, (u8*)image->sections[section].private + offset, size);
                *size_read = size;
-               image->error_str[0] = '\0';
                
                return ERROR_OK;
        }
@@ -813,6 +834,7 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
                                        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);
@@ -833,7 +855,6 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        {
                memcpy(buffer, (u8*)image->sections[section].private + offset, size);
                *size_read = size;
-               image->error_str[0] = '\0';
                
                return ERROR_OK;
        }
@@ -841,7 +862,6 @@ int image_read_section(image_t *image, int section, u32 offset, u32 size, u8 *bu
        {
                memcpy(buffer, (u8*)image->sections[section].private + offset, size);
                *size_read = size;
-               image->error_str[0] = '\0';
                
                return ERROR_OK;
        }
@@ -901,7 +921,10 @@ int image_close(image_t *image)
                fileio_close(&image_ihex->fileio);
                
                if (image_ihex->buffer)
+               {
                        free(image_ihex->buffer);
+                       image_ihex->buffer = NULL;
+               }
        }
        else if (image->type == IMAGE_ELF)
        {
@@ -910,17 +933,26 @@ int image_close(image_t *image)
                fileio_close(&image_elf->fileio);
 
                if (image_elf->header)
+               {
                        free(image_elf->header);
+                       image_elf->header = NULL;
+               }
 
                if (image_elf->segments)
+               {
                        free(image_elf->segments);
+                       image_elf->segments = NULL;
+               }
        }
        else if (image->type == IMAGE_MEMORY)
        {
                image_memory_t *image_memory = image->type_private;
                
                if (image_memory->cache)
+               {
                        free(image_memory->cache);
+                       image_memory->cache = NULL;
+               }
        }
        else if (image->type == IMAGE_SRECORD)
        {
@@ -929,7 +961,10 @@ int image_close(image_t *image)
                fileio_close(&image_mot->fileio);
                
                if (image_mot->buffer)
+               {
                        free(image_mot->buffer);
+                       image_mot->buffer = NULL;
+               }
        }
        else if (image->type == IMAGE_BUILDER)
        {
@@ -938,14 +973,21 @@ int image_close(image_t *image)
                for (i = 0; i < image->num_sections; i++)
                {
                        free(image->sections[i].private);
+                       image->sections[i].private = NULL;
                }
        }
 
        if (image->type_private)
+       {
                free(image->type_private);
+               image->type_private = NULL;
+       }
        
        if (image->sections)
+       {
                free(image->sections);
+               image->sections = NULL;
+       }
        
        return ERROR_OK;
 }
@@ -980,3 +1022,4 @@ int image_calculate_checksum(u8* buffer, u32 nbytes, u32* checksum)
        return ERROR_OK;
 }
 
+