hello world for ada compilation (again ...)

[Kris.Hermans at cs.kuleuven.ac.be (Kris Hermans)]

Hello,

I installed the crosscompiler for gnat/rtems and even succeeded in
compiling the kernel.
My system is debian linux, GNAT/RTEMS with target = pc386.

Sadly, in the sample app (hello_world_ada), there is no makefile included
for my set-up.  While trying to figure out one for myself, I have a few
questions:

* in the file MakeFile.erc32 there is the line:
 CARGS=-B${rtemsdir}/lib/ -specs bsp_specs -qrtems -mcypress  I guess this
defines some flags to pass to the binder and the linker.  However, I don't
get the actual meaning of it (what is bsp_specs, qrtems, mcypress and how
do I have to modify it for a pc386 ?)

* leaving the above line unaltered and modifying PATH's etc., I get the
following:

#
#  Makefile for hello world example
#

MAIN=hello

# Tool paths
tooldir=/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems
rtemsdir=${tooldir}/rtems/pc386

# Tool names
GCC=${tooldir}/bin/i386-rtems-gcc
GNATMAKE=${tooldir}/bin/i386-rtems-gnatmake
SIZE=${tooldir}/bin/i386-rtems-size

CARGS=-B${rtemsdir}/lib/ -specs bsp_specs -qrtems -mcypress

all: init.o
        $(GNATMAKE) -v -O -gnata -gnatE -gnato $(MAIN) -g \
            -bargs -r \
            -cargs $(CARGS) \
            -largs $(CARGS) init.o
        $(SIZE) $(MAIN)



init.o: init.c
        $(GCC) -O4 -g  -Wall -ansi -fasm $(CARGS) -c init.c

run:
        @ echo Must run on the real target

gdb:
        @ echo No real target

clean:
        rm -f b_$(MAIN).c b_$(MAIN).o *.o *.ali $(MAIN)

However, make complains:

make -f Makefile.pc386.old 
/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/bin/i386-rtems-gcc -O4 -g  -Wall
-ansi -fasm -B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/
-specs bsp_specs -qrtems -mcypress -c init.c
cc1: Invalid option `cypress'
make: *** [init.o] Error 1

* So, I leave out the invalid option (without knowing what it means ...).
I get:

 make -f Makefile.pc386.old 
/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/bin/i386-rtems-gcc -O4 -g  -Wall
-ansi -fasm -B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/
-specs bsp_specs -qrtems -c init.c
/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/bin/i386-rtems-gnatmake -v -O
-gnata -gnatE -gnato hello -g \
    -bargs -r \
    -cargs -B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/
-specs bsp_specs -qrtems \
    -largs -B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/
-specs bsp_specs -qrtems init.o

GNATMAKE 3.11p  (981118) Copyright 1995-1998 Free Software Foundation,
Inc.
  "hello.ali" being checked ...
  -> "hello.ali" missing.
i386-rtems-gcc -c -O -gnata -gnatE -gnato -g
-B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/ -specs
bsp_specs -qrtems hello.adb
hello.adb:7:11: warning: file name does not match unit name, should be
"main.adb"
i386-rtems-gnatbind -aO./ -r -I- -x hello.ali
i386-rtems-gnatlink -g
-B/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/ -specs
bsp_specs -qrtems init.o hello.ali
i386-rtems-gcc: file path prefix
`/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/rtems/pc386/lib/' never used
/home/pcuser8/RTEMS/gnat-3.11p/i386-rtems/bin/i386-rtems-size hello
   text    data     bss     dec     hex filename
 154464    6076   42188  202728   317e8 hello

What is the meaning of this all ?  Did I succeed ? Why isn 't there a file
with a .exe extension (I have just plain "hello", can I use this for
creating a bootable disk with grub ?).

Sorry for all the (perhaps silly) qustions, but I really want to be sure
that my compile set-up is ok, before proceeding with actually executing
the apps.



Thanks for the answers,

Kris (a RTEMS newbie, but I guess you figured this out already ;-))