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RE: Re: context.S problem
- From: "Wendell Liu" <wliu at gennum dot com>
- To: "'Jonathan Larmour'" <jifl at ecoscentric dot com>
- Cc: "'mirko massignani'" <mirko dot massignani at gmail dot com>, "'eCos discussion'" <ecos-discuss at ecos dot sourceware dot org>
- Date: Mon, 11 Sep 2006 10:43:51 -0400
- Subject: RE: [ECOS] Re: context.S problem
Thanks a lot, Jonathan.
The complete compiling flags are:
sh-elf-gcc -c -I/cygdrive/c/cygwin/tmp/ram/install/include
-I/cygdriver/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current
-I/cygdriver/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src
-I/cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/tests
-I. -I/cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src/
-finline-limit=7000 -ml -m4 -Wall -Wpointer-arith -Wstrict-prototypes
-Winline -Wundef -ggdb -02 -ffunction-sections -fdata-sections
-fno-exceptions -Wp,-MD,src/context.tmp -o src/hal_sh_arch_context.o
/cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src/context.S
The two SH header files:
...install\include\cyg\hal\sh4_offsets.inc
...install\include\cyg\hal\sh_offset.inc
Both are empty, i.e. 0 size.
If I replaced these two empty files with pre-compiled files, then I can
build the image.
I don't know when to create these two SH header files? Could you instruct
here?
Appreciate your help,
Wendell
-----Original Message-----
From: ecos-discuss-owner@ecos.sourceware.org
[mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of Jonathan
Larmour
Sent: September 11, 2006 10:08 AM
To: Wendell Liu
Cc: 'mirko massignani'; 'eCos discussion'
Subject: [ECOS] Re: context.S problem
Wendell Liu wrote:
> Thanks, Jonathan.
>
> I didn't put all the flags in the email.
Then please do.
> Yes, I read almost all the manuals
> and the Anthony J. Massa's eCos book. The build should be quite
> straight forward. My issue is probably related to my computer
> setting/environments etc. Could you give me some hints here?
The line in question in context.S does not appear to have a relocation on it
*unless* CYGARC_JMPBUF_SP has somehow not been defined. Check the contents
of install/include/cyg/hal/sh_offsets.inc. And try a clean build from an
empty tree.
Jifl
> -----Original Message-----
> From: Jonathan Larmour [mailto:jifl@ecoscentric.com]
> Sent: September 10, 2006 4:54 PM
> To: Wendell Liu
> Cc: 'mirko massignani'; 'eCos discussion'
> Subject: Re: context.S problem
>
> Wendell Liu wrote:
>>
>> Hello, Andrew and other eCos experts,
>>
>> I just started using eCos with SH4 for my next project, and I try to
>> build eCos image. On my machine, I always encountered the following
> errors:
>> sh-elf-gcc -c -I/... src/hal_sh_arch_context.o
>> /cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src/con
>> t
>> ext.S
>>
>>
>
/cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src/context.S:
>> Assembler messages:
>>
>
/cygdrive/c/cygwin/opt/ecos/ecos/packages/hal/sh/arch/current/src/context.S:
>> 257:
>> Error: Cannot represent relocation type BFD_RELOC_SH_IMM4BY4
>
> I don't see the correct compiler flags there. How are you trying to
> build eCos? Have you read the user manual?
>
> Jifl
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