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From: Richard Henderson <rth@twiddle.net>
To: Ed Maste <emaste@freebsd.org>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [RFT PATCH] configure: Simplify alternate .text segment
Date: Wed, 19 Jun 2013 13:09:37 -0700	[thread overview]
Message-ID: <51C21001.60601@twiddle.net> (raw)
In-Reply-To: <CAPyFy2C0G=O1hGLpz_1DD_Tgxn6GpyNpCwPR023ZKaBzD42_Vg@mail.gmail.com>

On 06/19/2013 12:57 PM, Ed Maste wrote:
> Sounds good, although we need to pick up __executable_start too I
> think; from my ld --verbose:
> #  PROVIDE (__executable_start = 0x400000); . = 0x400000 + SIZEOF_HEADERS;
> 
> How about this?
> 
>       $ld --verbose | sed \
>         -e '1,/==================================================/d' \
>         -e '/==================================================/,$d' \
>         -e "s/[.] = .* [+] SIZEOF_HEADERS/. = $textseg_addr + SIZEOF_HEADERS/" \
>         -e "s/__executable_start = [0-9x]*/__executable_start =
> $textseg_addr/" > config-host.ld

Looks good.  Perhaps even use the [0-9a-fx]* pattern for the SIZEOF_HEADERS
line too.

I was initially looking at my ld --verbose and trying to think what to do with
the SEGMENT_START("text-segment", 0x08048000) pattern, but that's clearly dumb,
since that implies that the -Ttext-segment option exists and works.  :-P



r~

      reply	other threads:[~2013-06-19 20:09 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-19  2:29 [Qemu-devel] [RFT PATCH] configure: Simplify alternate .text segment Ed Maste
2013-06-19 18:25 ` Richard Henderson
2013-06-19 19:57   ` Ed Maste
2013-06-19 20:09     ` Richard Henderson [this message]

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