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Cybook Gen3

Information about the Cybook

Firmware Update

File structure of the update:

$ file update_kernel
update_kernel: ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
$ readelf -a update_kernel                                                                   
ELF Header:                                                                                  
  Magic:   7f 45 4c 46 01 01 01 61 00 00 00 00 00 00 00 00                                   
  Class:                             ELF32                                                   
  Data:                              2's complement, little endian                           
  Version:                           1 (current)                                             
  OS/ABI:                            ARM                                                     
  ABI Version:                       0                                                       
  Type:                              EXEC (Executable file)                                  
  Machine:                           ARM                                                     
  Version:                           0x1                                                     
  Entry point address:               0x80d0                                                  
  Start of program headers:          52 (bytes into file)                                    
  Start of section headers:          16353276 (bytes into file)                              
  Flags:                             0x202, has entry point, GNU EABI, software FP           
  Size of this header:               52 (bytes)                                              
  Size of program headers:           32 (bytes)                                              
  Number of program headers:         3                                                       
  Size of section headers:           40 (bytes)                                              
  Number of section headers:         18                                                      
  Section header string table index: 17                                                      
                                                                                             
Section Headers:                                                                             
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al             
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0             
  [ 1] .init             PROGBITS        000080b4 0000b4 000014 00  AX  0   0  4             
  [ 2] .text             PROGBITS        000080d0 0000d0 061370 00  AX  0   0 16             
  [ 3] __libc_freeres_fn PROGBITS        00069440 061440 00063c 00  AX  0   0  4             
  [ 4] .fini             PROGBITS        00069a7c 061a7c 00000c 00  AX  0   0  4             
  [ 5] .rodata           PROGBITS        00069a90 061a90 f351ba 00   A  0   0 16             
  [ 6] __libc_atexit     PROGBITS        00f9ec4c f96c4c 000004 00   A  0   0  4             
  [ 7] __libc_subfreeres PROGBITS        00f9ec50 f96c50 000024 00   A  0   0  4             
  [ 8] .data             PROGBITS        00fa7000 f97000 0015e0 00  WA  0   0  4             
  [ 9] .eh_frame         PROGBITS        00fa85e0 f985e0 000004 00   A  0   0  4             
  [10] .gcc_except_table PROGBITS        00fa85e4 f985e4 00008c 00  WA  0   0  4             
  [11] .ctors            PROGBITS        00fa8670 f98670 00000c 00  WA  0   0  4             
  [12] .dtors            PROGBITS        00fa867c f9867c 00000c 00  WA  0   0  4             
  [13] .jcr              PROGBITS        00fa8688 f98688 000004 00  WA  0   0  4             
  [14] .got              PROGBITS        00fa868c f9868c 0000c4 04  WA  0   0  4             
  [15] .bss              NOBITS          00fa8750 f98750 00dc90 00  WA  0   0  4             
  [16] __libc_freeres_pt NOBITS          00fb63e0 f98750 00001c 00  WA  0   0  4             
  [17] .shstrtab         STRTAB          00000000 f98750 0000aa 00      0   0  1             
Key to Flags:                                                                                
  W (write), A (alloc), X (execute), M (merge), S (strings)                                  
  I (info), L (link order), G (group), x (unknown)                                           
  O (extra OS processing required) o (OS specific), p (processor specific)                   
                                                                                             
Program Headers:                                                                             
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align                    
  LOAD           0x000000 0x00008000 0x00008000 0xf96c74 0xf96c74 R E 0x8000                 
  LOAD           0xf97000 0x00fa7000 0x00fa7000 0x01750 0x0f3fc RW  0x8000                   
  NOTE           0x000000 0x00000000 0x00008094 0x00000 0x00000 R   0x4                      
                                                                                             
 Section to Segment mapping:                                                                 
  Segment Sections...                                                                        
   00     .init .text __libc_freeres_fn .fini .rodata __libc_atexit __libc_subfreeres        
   01     .data .eh_frame .gcc_except_table .ctors .dtors .jcr .got .bss __libc_freeres_ptrs 
   02                                                                                        
                                                                                             
There is no dynamic section in this file.                                                    
                                                                                             
There are no relocations in this file.                                                       
                                                                                             
There are no unwind sections in this file.                                                   
                                                                                             
No version information found in this file.
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