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From: Thiemo Seufer <ths@networkno.de>
To: Adil Hafeez <adilhafeez80@gmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Fixed kernel entry point suggestion
Date: Fri, 30 Dec 2005 22:04:27 +0100	[thread overview]
Message-ID: <20051230210427.GJ1882@hattusa.textio> (raw)
In-Reply-To: <82e4189c0512300222k426764e0ldefeafb232ad36d@mail.gmail.com>

Adil Hafeez wrote:
> What about placing the jump instruction just after reserved space, like this
> 
>         .text
>         /*
>          * Reserved space for exception handlers.
>          * Necessary for machines which link their kernels at KSEG0.
>          */
>         .fill   0x400
> 
>         /* The following two symbols are used for kernel profiling. */
>         EXPORT(stext)
>         EXPORT(_stext)
> =>     j kernel_entry
>         __INIT
> 
> I disassembled vmlinux binary and now jump instruction is placed after
> reserved space

This only works iff the fill is done with NOPs. On a more general note,
it is usually considered to be the bootloader's job to find the correct
entry, not the kernel's one.


Thiemo

      reply	other threads:[~2005-12-30 21:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-28  7:36 Fixed kernel entry point suggestion Adil Hafeez
2005-12-28 14:22 ` Dan Malek
2005-12-30  9:36   ` Adil Hafeez
2005-12-30  9:47     ` Thiemo Seufer
2005-12-30 10:22       ` Adil Hafeez
2005-12-30 21:04         ` Thiemo Seufer [this message]

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