[U-Boot-Users] About the u-boot (in ELF binary format)

[U-Boot-Users] About the u-boot (in ELF binary format)

[腾飞龙]

Hi,
    I have successfully compiled u-boot and ,as you know, there are
several object files produced after"make all", one of which is
u-boot(in ELF binary format) . Now, i run the u-boot(in ELF binary
format) in target board (Embedded Planet EP405)with   Linux kernel and
NFS file system.
    # ./u-boot
    then appears the error echo:
    Segmentation fault
    will you please tell me what's the problem and how to solve it?
   Thank you and best wishes!!

[U-Boot-Users] About the u-boot (in ELF binary format)

[Wolfgang Denk]

In message <c002eb610601090235h7b139895p@mail.gmail.com> you wrote:
>
>     I have successfully compiled u-boot and ,as you know, there are
> several object files produced after"make all", one of which is
> u-boot(in ELF binary format) . Now, i run the u-boot(in ELF binary
> format) in target board (Embedded Planet EP405)with   Linux kernel and
> NFS file system.
>     # ./u-boot
>     then appears the error echo:
>     Segmentation fault
>     will you please tell me what's the problem and how to solve it?

U-Boot is a boot loader and not an application programm which can  be
run under Linux.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Every little picofarad has a nanohenry all its own.      - Don Vonada

[U-Boot-Users] 回复: About the u-boot (in ELF binary format)

[腾飞龙]

Hi,
   As you said, one must download the .bin file to flash and not the
ELF file, and U-Boot is a boot loader and not an application programm
which can  be
run under Linux. then, what is the u-boot(in ELF binary format) for ?
  I red the book"Building Embeded Linux systems " written by Karim
Yaghmour,in section 9.5 it described like this:
  If you intend to debug U-Boot itself ,copy the ELF binary also:
  $ u-boot ${PROJECT}/images/u-boot-0.2.0
  Here ${PROJECT}/images is a directory to which u make a copy of the
relevant bootloader images. so, i guess the ELF file may be downloaded
to target to debug u-boot. Is it so and how does the file work?
  Thank you in advance!


2006/1/9, Wolfgang Denk <wd@denx.de>:
> In message <c002eb610601090235h7b139895p@mail.gmail.com> you wrote:
> >
> >     I have successfully compiled u-boot and ,as you know, there are
> > several object files produced after"make all", one of which is
> > u-boot(in ELF binary format) . Now, i run the u-boot(in ELF binary
> > format) in target board (Embedded Planet EP405)with   Linux kernel and
> > NFS file system.
> >     # ./u-boot
> >     then appears the error echo:
> >     Segmentation fault
> >     will you please tell me what's the problem and how to solve it?
>
> U-Boot is a boot loader and not an application programm which can  be
> run under Linux.
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> Every little picofarad has a nanohenry all its own.      - Don Vonada
>

[U-Boot-Users] »Ø¸´: About the u-boot (in ELF binary format)

[Tore Martin Hagen]

Hi ???

The ELF file is used by HW-debuggers, since it contains symbol information.

/Tore Martin Hagen


??? wrote:

>Hi,
>   As you said, one must download the .bin file to flash and not the
>ELF file, and U-Boot is a boot loader and not an application programm
>which can  be
>run under Linux. then, what is the u-boot(in ELF binary format) for ?
>  I red the book"Building Embeded Linux systems " written by Karim
>Yaghmour,in section 9.5 it described like this:
>  If you intend to debug U-Boot itself ,copy the ELF binary also:
>  $ u-boot ${PROJECT}/images/u-boot-0.2.0
>  Here ${PROJECT}/images is a directory to which u make a copy of the
>relevant bootloader images. so, i guess the ELF file may be downloaded
>to target to debug u-boot. Is it so and how does the file work?
>  Thank you in advance!
>
>
>2006/1/9, Wolfgang Denk <wd@denx.de>:
>  
>
>>In message <c002eb610601090235h7b139895p@mail.gmail.com> you wrote:
>>    
>>
>>>    I have successfully compiled u-boot and ,as you know, there are
>>>several object files produced after"make all", one of which is
>>>u-boot(in ELF binary format) . Now, i run the u-boot(in ELF binary
>>>format) in target board (Embedded Planet EP405)with   Linux kernel and
>>>NFS file system.
>>>    # ./u-boot
>>>    then appears the error echo:
>>>    Segmentation fault
>>>    will you please tell me what's the problem and how to solve it?
>>>      
>>>
>>U-Boot is a boot loader and not an application programm which can  be
>>run under Linux.
>>
>>Best regards,
>>
>>Wolfgang Denk
>>
>>--
>>Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
>>Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
>>Every little picofarad has a nanohenry all its own.      - Don Vonada
>>
>>    
>>
>
>
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[U-Boot-Users] Re: 回复: About the u-boot (in ELF binary format)

[Wolfgang Denk]

In message <c002eb610601091809u66626a88g@mail.gmail.com> you wrote:
>
>    As you said, one must download the .bin file to flash and not the
> ELF file, and U-Boot is a boot loader and not an application programm
> which can  be
> run under Linux. then, what is the u-boot(in ELF binary format) for ?

for debuggung. You need an ELF file to load into GDB.

>   I red the book"Building Embeded Linux systems " written by Karim
> Yaghmour,in section 9.5 it described like this:
>   If you intend to debug U-Boot itself ,copy the ELF binary also:
>   $ u-boot ${PROJECT}/images/u-boot-0.2.0

Yes, and you should read more of this book, and  especially  more  of
the U-Boot manual, too.

>   Here ${PROJECT}/images is a directory to which u make a copy of the
> relevant bootloader images. so, i guess the ELF file may be downloaded
> to target to debug u-boot. Is it so and how does the file work?

You guessed wrong. Instead, read the documentation.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Q:  Why do mountain climbers rope themselves together?
A:  To prevent the sensible ones from going home.