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Re: ecos-3.0 current stm32 bug?
- From: Sergei Gavrikov <sergei dot gavrikov at gmail dot com>
- To: Philipp Meier <pme dot neratec at gmx dot ch>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Wed, 24 Aug 2011 14:35:15 +0300 (EEST)
- Subject: Re: [ECOS] ecos-3.0 current stm32 bug?
- References: <20110824103404.51600@gmx.net>
On Wed, 24 Aug 2011, Philipp Meier wrote:
> Hi all
>
> I have a firmware split into two parts:
> 1. a "bootloader"
> 2. a "application"
>
> I now need to move from Windows (cygwin) development environment to
> Linux development environment and at the same time use the current
> ecos version (i.e. what I get when I clone the ecos mercurial
> repository) instead of the "original" (back in 2009) ecos-3.0 version.
>
> The situation is now as follows:
> 1. I download (to my stm32 device) the Linux/ecos-current built
> "bootloader"
> 2. I download (to my stm32 device) the Linux/ecos-current built
> "application"
> 3. I start the application and in line 187 of file
> 'hal/cortexm/arch/current/src/hal_msic.c' instead of branching to
> 'hal_switch_state_vsr' it branches to 'hal_default_exception_vsr'
> function!
>
> To analyze the problem I then:
> 4. Downloaded (to my stm32 device) the cyginw/ecos-3.0 built
> "bootloader"
> 5. Still having the Linux/ecos-current built "application"
> 6. And in line 187 (of the above mentioned file) it branches (as it
> should) to 'hal_switch_state_vsr' and the application is starting up
> and running fine!
>
> Who can give me a hint about
> * what has been changed in ecos-current cortexm stm32 that could
> cause this problem
Hi Philipp,
I think you can use Mercurial for that
% hg tags | grep v3
ecos-v3_0-branchpoint 2821:b5a12bb6a634
% hg log -r ecos-v3_0-branchpoint:tip packages/hal/cortexm/arch | less -FRSX
or (may be)
% hg log --patch -r ecos-v3_0-branchpoint:tip \
packages/hal/cortexm/arch/current/src/hal_misc.c | less -FRSX
etc.
> * or what else I could analyze to find out why ecos-current (built on
> Linux, arm-eabi-gcc (eCosCentric GNU tools 4.3.2-sw); under cygwin I
> also used the arm-eabi-gcc version 4.3.2 pre-built by eCosCentric)
Also you would check the Linux build for ecos-3.0 codebase
# get old (working) code
% hg update ecos-v3_0-branchpoint
Rebuild your loader and application under Linux and try it (use fresh
directories for builds). After all do not forget up-to-date eCos HG
repository (hg update default).
Feel free to submit a bug report (if you'll find something) via eCos
Bugzilla System http://bugs.ecos.sourceware.org/
Sergei
> Regards
> Philipp
>
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