From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13216 invoked by alias); 25 Aug 2011 08:49:06 -0000 Received: (qmail 13041 invoked by uid 22791); 25 Aug 2011 08:49:03 -0000 X-SWARE-Spam-Status: No, hits=-1.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE X-Spam-Check-By: sourceware.org Received: from mailout-de.gmx.net (HELO mailout-de.gmx.net) (213.165.64.22) by sourceware.org (qpsmtpd/0.43rc1) with SMTP; Thu, 25 Aug 2011 08:48:47 +0000 Received: (qmail 6641 invoked by uid 0); 25 Aug 2011 08:48:45 -0000 Received: from 80.75.119.105 by www040.gmx.net with HTTP; Thu, 25 Aug 2011 10:48:45 +0200 (CEST) Content-Type: text/plain; charset="utf-8" Date: Thu, 25 Aug 2011 08:49:00 -0000 From: "Philipp Meier" In-Reply-To: Message-ID: <20110825084845.184240@gmx.net> MIME-Version: 1.0 References: <20110824103404.51600@gmx.net> <20110824141051.115980@gmx.net> <20110824145744.116000@gmx.net> To: "Christophe Coutand" , ecos-discuss@ecos.sourceware.org Content-Transfer-Encoding: 8bit X-IsSubscribed: yes Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: RE: RE: [ECOS] ecos-3.0 current stm32 bug? X-SW-Source: 2011-08/txt/msg00049.txt.bz2 Hello Christophe it is the SWI instruction ("svc 0" in disassem code) that triggers the exception (therefore breakpoint in hal_switch_state_vsr is never reached). Where does the SWI instruction get's it's information about where to jump to? Is it the hal_vsr_table (located at 0x20000000)? In entry 11 I have 0x8040025 which is the address for hal_switch_state_vsr - and yet it does not jumps to 0x8040025 but instead to 0x8040042 (hal_default_exception_vsr). Any idea about the reason for this behaviour? Cheers Philipp -------- Original-Nachricht -------- > Datum: Wed, 24 Aug 2011 09:40:02 -0700 > Von: "Christophe Coutand" > An: "Philipp Meier" , ecos-discuss@ecos.sourceware.org > Betreff: RE: RE: [ECOS] ecos-3.0 current stm32 bug? > What about setting a breakpoint in hal_switch_state_vsr? Is it the SWI > instruction that triggers the exception or is it the execution of the > hal_switch_state_vsr routine? > > Christophe > > > -----Original Message----- > > From: ecos-discuss-owner@ecos.sourceware.org [mailto:ecos-discuss- > > owner@ecos.sourceware.org] On Behalf Of Philipp Meier > > Sent: 24. august 2011 16:58 > > To: ecos-discuss@ecos.sourceware.org > > Subject: Re: RE: [ECOS] ecos-3.0 current stm32 bug? > > > > Hello Christophe, > > > > Yes - both are ROM startup type. The bootloader without offset (i.e. > > offset 0x0), the application with offset 0x40000. > > > > In the bootloader elf file hal_vsr_table is 20000000 and the same is > > true for the application. > > > > GDB debug output when debugging the startup of the application: > > > > Bad case (Linux built bootloader): > > ---------------------------------- > > (gdb) print /fx hal_vsr_table > > $1 = {0x441c4c08, 0x61232301, 0x8040043, 0x8040043, 0x8040043, > > 0x8040043, 0x8040043, 0x8040043, 0x8040043, 0x8040043, > > 0x8040043, 0x8040025, 0x8040043, 0x8040043, 0x8040089, 0x8040075 > > } > > (gdb) print /fx &hal_vsr_table > > $2 = 0x20000000 > > > > Good case (Cygwin built bootloader): > > ---------------------------------- > > (gdb) print /fx hal_vsr_table > > $1 = {0x4024f8df, 0xf04f4d09, 0x8040043, 0x8040043, 0x8040043, > > 0x8040043, 0x8040043, 0x8040043, 0x8040043, 0x8040043, > > 0x8040043, 0x8040025, 0x8040043, 0x8040043, 0x8040089, 0x8040075 > > } > > (gdb) print /fx &hal_vsr_table > > $2 = 0x20000000 > > > > Cheers > > Philipp > > > > -------- Original-Nachricht -------- > > > Datum: Wed, 24 Aug 2011 07:22:53 -0700 > > > Von: "Christophe Coutand" > > > An: "Philipp Meier" , "ecos discuss" > discuss@ecos.sourceware.org> > > > Betreff: RE: [ECOS] ecos-3.0 current stm32 bug? > > > > > Both the bootloader and the application are ROM startup type? > > > > > > What about the address of the hal_vsr_table in the bootloader and > > > application? > > > > > > Christophe > > > > > > > -----Original Message----- > > > > From: ecos-discuss-owner@ecos.sourceware.org [mailto:ecos-discuss- > > > > owner@ecos.sourceware.org] On Behalf Of Philipp Meier > > > > Sent: 24. august 2011 16:11 > > > > To: ecos discuss > > > > Subject: Re: [ECOS] ecos-3.0 current stm32 bug? > > > > > > > > -------- Original-Nachricht -------- > > > > > Datum: Wed, 24 Aug 2011 14:35:15 +0300 (EEST) > > > > > Von: Sergei Gavrikov > > > > > An: Philipp Meier > > > > > CC: ecos-discuss@ecos.sourceware.org > > > > > Betreff: Re: [ECOS] ecos-3.0 current stm32 bug? > > > > > > > > > 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 > > > > > > > > Hello Sergei and others > > > > > > > > Thanks a lot for your tips about how to find out the differences > > > > between the versions. > > > > > > > > I now went a step back and built (under Linux) my "bootloader" and > > my > > > > "application" under Linux using the same ecos sources and > > configuration > > > > files as when I built them under Windows/cygwin. > > > > > > > > Therefore - I wanted to see if the problem comes from building > > under > > > > Linux, or from changes in the ecos stm32 parts (or any other ecos > > > > parts). > > > > > > > > But - I have the same problem as described above; i.e. the problem > > must > > > > be somehow in my Linux toolchain? > > > > > > > > Therefore my question now is: > > > > Can anybody give me some background information about how the > > "__asm__ > > > > volatile( "swi" )" statement in line 188 of > > > > packages/hal/cortexm/arch/v3_0/src/hal_misc.c (or "swi 0" line 187 > > in > > > > packages/hal/cortexm/arch/current/src/hal_misc.c when using ecos- > > > > current) is interpreted on stm32? What could be the reason that it > > does > > > > not jumps to "hal_switch_state_vsr" but instead jumps to > > > > "hal_default_exception_vsr"? > > > > > > > > The lines where the different behaviour is look like this: > > > > hal_vsr_table[CYGNUM_HAL_VECTOR_SERVICE] = > > > > (CYG_ADDRESS)hal_switch_state_vsr; > > > > > > > > __asm__ volatile( "swi" ); > > > > > > > > ... > > > > > > > > In the good case these leads to a jump/branch to > > hal_switch_state_vsr > > > > and in the bad case it jumps/branches to hal_default_exception_vsr > > and > > > > therefore my application does not starts up. > > > > > > > > Thanks for any help. > > > > > > > > Philipp > > > > -- > > > > P.S.: Sorry Sergei - I did not mean to reply directly to you but > > like > > > > this to the mailing list. > > > > -- > > > > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! > > > > > > > > Jetzt informieren: http://www.gmx.net/de/go/freephone > > > > > > > > -- > > > > Before posting, please read the FAQ: > > > > http://ecos.sourceware.org/fom/ecos > > > > and search the list archive: http://ecos.sourceware.org/ml/ecos- > > discuss > > > > > > > -- > > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! > > > > Jetzt informieren: http://www.gmx.net/de/go/freephone > > > > -- > > Before posting, please read the FAQ: > > http://ecos.sourceware.org/fom/ecos > > and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss > -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss