From: Reinhard Meyer <u-boot@emk-elektronik.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [RFC] arm926ejs: fix jump to RAM nand_boot
Date: Tue, 02 Nov 2010 09:57:34 +0100 [thread overview]
Message-ID: <4CCFD27E.3080500@emk-elektronik.de> (raw)
In-Reply-To: <4CCFAFE4.3000600@denx.de>
Dear Heiko Schocher,
> But there is a possibility to prevent one copy, if TEXT_BASE =
> relocation address = CONFIG_SYS_NAND_U_BOOT_DST
>
> In this case nand_spl code copies u-boot from nand to
> CONFIG_SYS_NAND_U_BOOT_DST. As this is equal to the relocation address,
> no need to copy code in relocate_code().
>
> But as codesize changes (and with it relocation address) this
> is not a perfect solution.
Worse: it would certainly crash since the original and relocated memory
areas must not overlap - they sure would with even the slightest size change.
That idea should not be promoted any further.
I would recommend that we add code to check for overlapping relocation into
board.c and print a panic message if an overlap is detected.
Best Regards,
Reinhard
next prev parent reply other threads:[~2010-11-02 8:57 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-31 17:43 [U-Boot] [RFC] arm926ejs: fix linker file for newer ld support Albert Aribaud
2010-10-31 18:11 ` Alexander Holler
2010-10-31 18:12 ` Wolfgang Denk
2010-10-31 18:31 ` Albert ARIBAUD
2010-10-31 18:36 ` Wolfgang Denk
2010-10-31 18:38 ` Alexander Holler
2010-10-31 19:01 ` Wolfgang Denk
2010-10-31 19:07 ` Albert ARIBAUD
2010-10-31 19:22 ` Wolfgang Denk
2010-10-31 19:40 ` Albert ARIBAUD
2010-10-31 19:59 ` Wolfgang Denk
2010-10-31 20:23 ` Albert ARIBAUD
2010-10-31 20:32 ` Wolfgang Denk
2010-10-31 21:20 ` [U-Boot] [RFC] arm926ejs: fix jump to RAM nand_boot Albert Aribaud
2010-10-31 21:51 ` Wolfgang Denk
2010-10-31 21:55 ` Albert ARIBAUD
2010-10-31 22:28 ` Alexander Holler
2010-10-31 23:04 ` Albert ARIBAUD
2010-11-01 5:13 ` sughosh ganu
2010-11-01 8:12 ` Albert ARIBAUD
2010-11-01 9:13 ` Wolfgang Denk
2010-11-01 9:15 ` Wolfgang Denk
2010-11-01 17:03 ` Albert ARIBAUD
2010-11-01 19:23 ` Wolfgang Denk
2010-11-01 19:30 ` Albert ARIBAUD
2010-11-01 19:35 ` Wolfgang Denk
2010-11-01 20:04 ` Albert ARIBAUD
2010-11-01 19:44 ` Graeme Russ
2010-11-01 19:53 ` Albert ARIBAUD
2010-11-01 20:01 ` Wolfgang Denk
2010-11-01 20:19 ` Scott Wood
2010-11-02 6:29 ` Heiko Schocher
2010-11-02 6:54 ` Albert ARIBAUD
2010-11-02 7:10 ` Heiko Schocher
2010-11-02 8:33 ` Wolfgang Denk
2010-11-02 8:55 ` Heiko Schocher
2010-11-02 9:17 ` Stefan Roese
2010-11-09 19:19 ` Scott Wood
2010-11-02 9:21 ` Sughosh Ganu
2010-11-02 8:57 ` Reinhard Meyer [this message]
2010-11-02 9:11 ` Albert ARIBAUD
2010-11-02 9:34 ` Reinhard Meyer
2010-11-02 9:42 ` Albert ARIBAUD
2010-11-03 6:37 ` V, Aneesh
2010-11-03 8:02 ` Wolfgang Denk
2010-11-03 10:39 ` V, Aneesh
2010-11-03 11:27 ` Wolfgang Denk
2010-11-03 12:03 ` V, Aneesh
2010-11-03 12:08 ` Albert ARIBAUD
2010-11-03 12:20 ` V, Aneesh
2010-11-03 13:00 ` Wolfgang Denk
2010-11-03 14:07 ` V, Aneesh
2010-11-03 18:25 ` Wolfgang Denk
2010-11-02 9:38 ` Wolfgang Denk
2010-11-02 9:47 ` Albert ARIBAUD
2010-11-02 9:56 ` Sughosh Ganu
2010-11-02 11:16 ` Albert ARIBAUD
2010-11-02 11:32 ` Sughosh Ganu
2010-11-02 13:28 ` Wolfgang Denk
2010-10-31 19:01 ` [U-Boot] [RFC] arm926ejs: fix linker file for newer ld support Albert ARIBAUD
2010-10-31 18:35 ` Darius Augulis
2010-10-31 18:53 ` Albert ARIBAUD
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