[ECOS] Re: Problem with precompiled Cygwin arm-eabi toolchain

[John Dallaway <john at dallaway dot org dot uk>]

Hi Uwe

Uwe Kindler wrote:

> could anybody successful compile an eCos image for ARM7 architecture
> with the new precompiled arm-eabi toolchain for Cygwin?
> 
> If I use the arm-eabi toolchain the build process stops at the first C
> source file hal_mk_defs.c with the following "informative" error message:
> 
> make -r -C hal/arm/arch/current arm.inc
> make[1]: Entering directory
> `/ecos-d/cygwin/home/Nutzer/workdir/ea2468_new_kernel_01_build/hal/arm/arch/current'
> 
> arm-eabi-gcc -finline-limit=7000 -g2 -O0
> -I/ecos-d/cygwin/home/Nutzer/workdir/ea2468_new_kernel_01_install/include
> -I/opt/ecos_web_cvs/ecos/packages/hal/arm/arch/current
> -I/opt/ecos_web_cvs/ecos/packages/hal/arm/arch/current/src
> -I/opt/ecos_web_cvs/ecos/packages/hal/arm/arch/current/tests -I.
> -Wp,-MD,arm.tmp -o hal_mk_defs.tmp -S
> /opt/ecos_web_cvs/ecos/packages/hal/arm/arch/current/src/hal_mk_defs.c
> make[1]: Leaving directory
> `/ecos-d/cygwin/home/Nutzer/workdir/ea2468_new_kernel_01_build/hal/arm/arch/current'
> 
> make[1]: *** [arm.inc] Error 1

Building eCos and tests for target ea2468 with the kernel template works
fine for me using the 2008-12-13 arm-eabi toolchain under the latest
Cygwin. I set CYGBLG_GLOBAL_COMMAND_PREFIX == "arm-eabi" and removed
"-mno-short-load-words" from CYGBLG_GLOBAL_CFLAGS. I note that you have
further modified the compilation flags. The flags should look something
like this:

> -finline-limit=7000 -mcpu=arm7tdmi -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef  -g -O2 -ffunction-sections -fdata-sections -fno-exceptions

Also, check that "arm-eabi-gcc" works from a bash prompt and that you
have "fgrep" and "sed" installed.

John Dallaway

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