[BSD] OFF: mips

Bukuli Norbert bukuli.norbert at gmail.com
2013. Ápr. 25., Cs, 14:56:13 CEST


Az ABI verzio sajnos toolchain fuggo, szoval azt valoszinuleg nem tudod
megadni forditasi opciokent.


2013/4/25 Potoczky Andras <andras-ml at wertz.hu>

> Megtalaltam a little endian forditasi opciot es itt a hello readelf es az
> sh readelf:
>
> root at mips64:/home/andras/mips# readelf -h hello; readelf -h sh
> ELF Header:
>   Magic:   7f 45 4c 46 01 01 01 00 01 00 00 00 00 00 00 00
>   Class:                             ELF32
>
>   Data:                              2's complement, little endian
>   Version:                           1 (current)
>   OS/ABI:                            UNIX - System V
>   ABI Version:                       1
>   Type:                              EXEC (Executable file)
>   Machine:                           MIPS R3000
>   Version:                           0x1
>   Entry point address:               0x400220
>   Start of program headers:          52 (bytes into file)
>   Start of section headers:          2553788 (bytes into file)
>
>   Flags:                             0x70001005, noreorder, cpic, o32,
> mips32r2
>   Size of this header:               52 (bytes)
>   Size of program headers:           32 (bytes)
>   Number of program headers:         5
>   Size of section headers:           40 (bytes)
>   Number of section headers:         41
>   Section header string table index: 38
> ELF Header:
>   Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
>   Class:                             ELF32
>   Data:                              2's complement, little endian
>   Version:                           1 (current)
>   OS/ABI:                            UNIX - System V
>   ABI Version:                       0
>   Type:                              EXEC (Executable file)
>   Machine:                           MIPS R3000
>   Version:                           0x1
>   Entry point address:               0x403bd0
>   Start of program headers:          52 (bytes into file)
>   Start of section headers:          781968 (bytes into file)
>   Flags:                             0x50001007, noreorder, pic, cpic,
> o32, mips32
>   Size of this header:               52 (bytes)
>   Size of program headers:           32 (bytes)
>   Number of program headers:         8
>   Size of section headers:           40 (bytes)
>   Number of section headers:         30
>   Section header string table index: 29
>
>
> Most mar csak az ABI version elteres, de azt hiaba allitom. Lefordul, de
> 1-es marad.
>
> A gcc verzio egyebkent 4.4.6
>
> Feltoltottem a boxra a hello-t little endiannal. Most a hibauzenet:
>
> #./hello
> Illegal instruction
>
> Valtozott valamit.
>
> Andras
>
>
>
> 2013-04-25 14:33 időpontban Bukuli Norbert ezt írta:
>
>  Mi a fordito verzioja?
>>
>> 2013/4/25 Potoczky Andras <andras-ml at wertz.hu>
>>
>>  Lassuk:
>>>
>>> root at mips64:/home/andras/mips# readelf -h hello
>>> ELF Header:
>>>   Magic:   7f 45 4c 46 01 02 01 00 01 00 00 00 00 00 00 00
>>>
>>>   Class:                             ELF32
>>>   Data:                              2's complement, big endian
>>>   Version:                           1 (current)
>>>   OS/ABI:                            UNIX - System V
>>>   ABI Version:                       1
>>>   Type:                              EXEC (Executable file)
>>>   Machine:                           MIPS R3000
>>>   Version:                           0x1
>>>   Entry point address:               0x400220
>>>
>>>   Start of program headers:          52 (bytes into file)
>>>   Start of section headers:          2547360 (bytes into file)
>>>   Flags:                             0x70001005, noreorder, cpic, o32,
>>> mips32r2
>>>
>>>   Size of this header:               52 (bytes)
>>>   Size of program headers:           32 (bytes)
>>>   Number of program headers:         5
>>>   Size of section headers:           40 (bytes)
>>>   Number of section headers:         41
>>>   Section header string table index: 38
>>> root at mips64:/home/andras/mips# readelf -h sh
>>> ELF Header:
>>>   Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
>>>   Class:                             ELF32
>>>
>>>   Data:                              2's complement, little endian
>>>   Version:                           1 (current)
>>>   OS/ABI:                            UNIX - System V
>>>   ABI Version:                       0
>>>   Type:                              EXEC (Executable file)
>>>   Machine:                           MIPS R3000
>>>   Version:                           0x1
>>>   Entry point address:               0x403bd0
>>>
>>>   Start of program headers:          52 (bytes into file)
>>>   Start of section headers:          781968 (bytes into file)
>>>   Flags:                             0x50001007, noreorder, pic, cpic,
>>> o32, mips32
>>>
>>>   Size of this header:               52 (bytes)
>>>   Size of program headers:           32 (bytes)
>>>   Number of program headers:         8
>>>   Size of section headers:           40 (bytes)
>>>   Number of section headers:         30
>>>   Section header string table index: 29
>>>
>>> Latom, big endian es little endian elteres van.
>>>
>>> Gyorasan utannaneztem, marha egyszeru mbig-endian mlittle-endian
>>> optiokat kene hasznalni, csak a compiler ezeket nem ismeri.
>>>
>>> Turom meg, hatha ez lesz a jo irany.
>>>
>>> Andras
>>>
>>> 2013-04-25 14:00 időpontban Bukuli Norbert ezt írta:
>>>
>>>  Hasznos lehet a readelf is. Pl:
>>>>
>>>> $ readelf -h my_powerpc_program
>>>>
>>>> ELF Header:
>>>>   Magic:   7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00
>>>>   Class:                             ELF32
>>>>   Data:                              2's complement, big endian
>>>>   Version:                           1 (current)
>>>>   OS/ABI:                            UNIX - System V
>>>>   ABI Version:                       0
>>>>   Type:                              EXEC (Executable file)
>>>>   Machine:                           PowerPC
>>>>   Version:                           0x1
>>>>   Entry point address:               0x10001cb8
>>>>   Start of program headers:          52 (bytes into file)
>>>>   Start of section headers:          23156 (bytes into file)
>>>>   Flags:                             0x0
>>>>   Size of this header:               52 (bytes)
>>>>   Size of program headers:           32 (bytes)
>>>>   Number of program headers:         8
>>>>   Size of section headers:           40 (bytes)
>>>>   Number of section headers:         40
>>>>   Section header string table index: 37
>>>>
>>>> $ readelf -h /bin/bash
>>>>
>>>> ELF Header:
>>>>   Magic:   7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
>>>>   Class:                             ELF64
>>>>   Data:                              2's complement, little endian
>>>>   Version:                           1 (current)
>>>>   OS/ABI:                            UNIX - System V
>>>>   ABI Version:                       0
>>>>   Type:                              EXEC (Executable file)
>>>>   Machine:                           Advanced Micro Devices X86-64
>>>>   Version:                           0x1
>>>>   Entry point address:               0x419490
>>>>   Start of program headers:          64 (bytes into file)
>>>>   Start of section headers:          719608 (bytes into file)
>>>>   Flags:                             0x0
>>>>   Size of this header:               64 (bytes)
>>>>   Size of program headers:           56 (bytes)
>>>>   Number of program headers:         10
>>>>   Size of section headers:           64 (bytes)
>>>>   Number of section headers:         27
>>>>   Section header string table index: 26
>>>>
>>>> 2013. április 25. 13:49 írta, <gabor at zahemszky.hu>:
>>>>
>>>>  2013-04-25 13:48 időpontban Potoczky Andras ezt írta:
>>>>>
>>>>>  A boxon nem tudom kiadni, mert nincs file, de elozo emailben pont
>>>>>> elkuldtem, a fordito gepen a file kimenetet. Valami ilyen hiba lesz
>>>>>> amit irsz, nem ertelmezi, csak meg nem jottem ra mitol fogja
>>>>>> ertelmezni.
>>>>>>
>>>>>
>>>>> De azt is írtam, hogy egy a dobozról származó binárist (/bin/sh) is
>>>>> nézzél meg a fejlesztői gépeden és hasonlítsd össze őket.
>>>>>
>>>>
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-- 
Üdvözlettel:
Bukuli Norbert
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