From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gary Thomas <gthomas@cygnus.co.uk>
To: Dan Hovang <dan.hovang@cpen.com>
Cc: eCos Discussion <ecos-discuss@sourceware.cygnus.com>
Subject: Re: [ECOS] Building rommable images for the AEB-1C
Date: Fri, 07 Jan 2000 07:19:00 -0000
Message-id: <XFMail.000107081914.gthomas@cygnus.co.uk>
References: <3875FBB9.C424300D@cpen.com>
X-SW-Source: 2000-01/msg00027.html

I haven't seen this myself, so there may be something different in
our setups.

Can you send me the [binary] images?  Then I can have our tools guys
look at them to see what the problem is.

On 07-Jan-00 Dan Hovang wrote:
> Gary Thomas wrote:
>> 
>> You really should use *all* of the options used by the standard eCos
>> setup. In particular, these options tell the linker to throw away any
>> unused code. In your test case, this amounts to more than 100K bytes!
>> The image I build fits in ROM, even in the meager 32K defined as
>> default.
> 
> The --gc-sections linkoption seems to corrupt the debuginfo, though.
> 
> When using -ffunction-sections -fdata-sections with compile and
> --gc-sections with link and trying to connect with gdb i got:
> 
> (gdb) target remote com1
> Remote debugging using com1
> 0xec78 in breakinst () at include/new:27
> 27      include/new: No such file or directory.
> 
> without -Wl,--gc-sections I get:
> 
> (gdb) target remote com1
> Remote debugging using com1
> 0x136a4 in breakinst ()
>     at ecos/packages/hal/arm/arch/v1_2_1/src/hal_misc.c:204
> 204         HAL_BREAKPOINT(breakinst);
> Current language:  auto; currently c
> 
> Perhaps I'm missing some other option?
> 
> The compiler options are:
> 
> -g -O2 -Wall -Wpointer-arith -Winline -Wundef -Wstrict-prototypes
> -Woverloaded-virtual -fno-rtti -fno-exceptions -fvtable-gc
> -ffunction-sections -fdata-sections
> 
> And link options are:
> 
> -g -nostdlib -Wl,-static
> 
> I'm using ecosSWtools-arm-990321. I've also tried using the Insigth
> 19991222 snapshot.
> 
> /Dan
>