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Re: Patch to JFFS2 to run on ARM9

From: Jani Monoses <jani at iv dot ro>
To: ecos-patches at sources dot redhat dot com
Date: Thu, 17 Feb 2005 15:51:41 +0200
Subject: Re: Patch to JFFS2 to run on ARM9
References: <000c01c514f4$edb7d230$3503a8c0@DMETROLAB.COM>


The code generated is just plain wrong, at least at optimization level 0. In
creating the initialization value for the structure, it uses the element
.magic for intermediate storage to store .nodetype, with the net effect that
"marker" is initialized as
			.magic =
cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
			.nodetype =
cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
			.totlen =	cpu_to_je32(c->cleanmarker_size)

this has been discussed before.It is a bug in gcc 3.2.1 so for ARM it is recommended to use gcc>3.3.The ecos site should mention this I think. People new to ecos should search the mail archives to see if they encountered a known problem, but part of being new is not knowing this :).

References:
- Patch to JFFS2 to run on ARM9
  - From: Philip Keller

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