fixed warning
[fw/openocd] / src / target / image.c
index df69f3a80a6397bd70f914a81b0b3d8ef41e855c..20ce9f933bef97120df58910f47d1acde7a1f7ce 100644 (file)
@@ -2,6 +2,9 @@
  *   Copyright (C) 2007 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   Copyright (C) 2007,2008 Ã˜yvind Harboe                                      *
+ *   oyvind.harboe@zylin.com                                               *
+ *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
@@ -57,20 +60,24 @@ static int autodetect_image_type(image_t *image, char *url)
        {
                return retval;
        }
-       if ((retval = fileio_read(&fileio, 9, buffer, &read_bytes)) != ERROR_OK)
-       {
-               return ERROR_FILEIO_OPERATION_FAILED;
-       }
-       if (read_bytes != 9)
+       retval = fileio_read(&fileio, 9, buffer, &read_bytes);
+       
+       if (retval==ERROR_OK)
        {
-               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 */
@@ -83,7 +90,7 @@ 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 */
@@ -92,7 +99,7 @@ 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
@@ -315,7 +322,7 @@ 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;
                }
                
@@ -325,12 +332,12 @@ 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;
 }
 
@@ -343,25 +350,31 @@ 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;
        }
 
@@ -370,33 +383,38 @@ 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)
        {
-               ERROR("cannot seek to ELF program header table, read failed");
+               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;
        }
 
@@ -434,24 +452,24 @@ 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;
@@ -613,7 +631,7 @@ 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;
                }
                
@@ -625,12 +643,12 @@ 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;
 }
 
@@ -673,7 +691,7 @@ int image_open(image_t *image, char *url, char *type_string)
                
                if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK)
                {
-                       ERROR("failed buffering IHEX image, check daemon output for additional information");
+                       LOG_ERROR("failed buffering IHEX image, check daemon output for additional information");
                        fileio_close(&image_ihex->fileio);
                        return retval;
                }
@@ -724,7 +742,7 @@ int image_open(image_t *image, char *url, char *type_string)
                
                if ((retval = image_mot_buffer_complete(image)) != ERROR_OK)
                {
-                       ERROR("failed buffering S19 image, check daemon output for additional information");
+                       LOG_ERROR("failed buffering S19 image, check daemon output for additional information");
                        fileio_close(&image_mot->fileio);
                        return retval;
                }
@@ -761,7 +779,7 @@ 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;
        }