Re: [ECOS] Get problem on "Hello eCos world!"

[Moussa Ba <mba@embedded-zone.com>]

You are most likely using a more recent version of gcc, try compiling 
without the -finit-priority.

Moussa

Frank Wu wrote:
> Hi,
>
> I want generate a bin file which can boot up AT91SAM7256 and send
> "Hello eCos world!" back to hyper terminal. I am new to eCos. Please
> tell me if I did it right.
> 1) I use AT91SAM7SEK template default package to generate libtarget.a
> ROM is selected to Startup type in Atmel AT91SAM7 HAL. Take out some
> packages I do not need.
> 2) I changed hello.c (code see bellow) in c:\ecos\examples\ and use
> the make file over there
> 3) using objcopy convert .elf file to .bin file
> 4) using SAM-BA load .bin file to board
>
> I got compile problem at step 2). Please see code and error message 
> bellow.
> I am using gcc version 4.1.0
>
> Thanks in advance,
>
> -frank
>
> hello.c
> =====
> /* this is a simple hello world program */
> #include <stdio.h>
> #include <cyg/kernel/kapi.h>      // Kernel API.
> #include <cyg/infra/diag.h>      // For diagnostic printing.
> int main(void)
> {
> while(1)
>  {
>  diag_printf( "Hello, eCos world!\n");
> // Delay for 1 second.
>  cyg_thread_delay( 100 );
>  }
> }
>
> Error message:
> ===========
> c:\cygwin\workdir\at91\ecos examples>make
> INSTALL_DIR=c:/cygwin/workdir/at91/ecos_install
> arm-elf-gcc -c -o hello.o 
> -Ic:/cygwin/workdir/at91/ecos_install/include -mcpu=ar
> m7tdmi -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef 
> -Woverloaded-v
> irtual -g -O2 -ffunction-sections -fdata-sections -fno-rtti 
> -fno-exceptions -fvt
> able-gc -finit-priority hello.c
> cc1: warning: command line option "-Woverloaded-virtual" is valid for 
> C++/ObjC++
> but not for C
> cc1: warning: command line option "-fno-rtti" is valid for C++/ObjC++ 
> but not fo
> r C
> cc1: warning: command line option "-fvtable-gc" is valid for 
> C++/ObjC++ but not
> for C
> cc1: error: unrecognized command line option "-finit-priority"
> make: *** [hello.o] Error 1
>
> c:\cygwin\workdir\at91\ecos examples>
>


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