i did use the -S option..
i got the output and i deleted things that i thought were irrelevant and
reprogrammed the instruction i wanted:
basically i ended up with:
.text
.global main
main:
mov pc, #0
doing that
compiles fine:
[sbox-DEHTARGET: ~] > arm-linux-as doreset.s -o doreset.o
[sbox-DEHTARGET: ~] >
but linking raises a warning:
[sbox-DEHTARGET: ~] > arm-linux-ld doreset.o -o doresetLD
/scratchbox/compilers/arm-gcc-3.3.4-glibc-2.3.2/bin/sbox-arm-linux-ld:
warning: cannot find entry symbol _start; defaulting to 00008074
[sbox-DEHTARGET: ~] > file doresetLD
doresetLD: ELF 32-bit LSB executable, ARM, version 1 (ARM), statically
linked, not stripped
anyhow in the end i used what you just told me
[sbox-DEHTARGET: ~] > arm-linux-gcc -Wall doreset.s -o doreset
[sbox-DEHTARGET: ~] > file doreset
doreset: ELF 32-bit LSB executable, ARM, version 1 (ARM), for GNU/Linux
2.0.0, dynamically linked (uses shared libs), not stripped
[sbox-DEHTARGET: ~] >
and it compiled / linked fine...
when i try to run it though it produces a seg.fault. but thats beyond the
scope of this list:)
thank you once again for your help
nass
On 7/16/07, Lauri Leukkunen <[EMAIL PROTECTED]> wrote:
don't feed them to arm-linux-as, use arm-linux-gcc instead. It'll run
it through the pre-processor. Try compiling a hello world with -S
switch to see what it should look like.
/lauri
On 7/16/07, )(@sS <[EMAIL PROTECTED]> wrote:
> hm ok so i did look into the kernel/arch/arm/lib directory and found
some .S
> assembler files.
> i tried to compile a simple one strchr.S , the instructions and the
whole
> arm layout seem fairly different from the ones i had used in the past.
> anyway the source doesn't seem like a main program, rather a low level
> procedure that can be accessed from other codes..
>
> by the assembler can't compile it (even as if - i didnt touch it)
>
> [sbox-DEHTARGET: ~/linux-2.6.12.2/arch/arm/lib] > arm-linux-as strchr.S
> strchr.S: Assembler messages:
> strchr.S:17: Error: bad instruction `entry(strchr)'
> strchr.S:26: Error: bad instruction `retinstr(mov,pc,lr)'
>
> any ideas why? is there any tutorial page for the arm , because i
haven't
> found any...
> nass
>
>
> On 7/14/07, Lauri Leukkunen <[EMAIL PROTECTED]> wrote:
> >
> > On 13/07/07 13:23 +0300, )(@sS wrote:
> > > i would like to know if there is an assembler for scrachbox, like
armasm
> or
> > > whatever else..
> >
> > You seem to have already found the assembler of the toolchain, now all
you
> > need to do is to find some example code, linux kernel definitely has
some,
> > look for .S files under arch/arm. Those should give you an idea what
the
> > assembler expects. Alternatively compile some C code with -S and look
at
> > the output.
> >
> > /lauri
> > _______________________________________________
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> > Scratchbox-users@lists.scratchbox.org
> >
> http://lists.scratchbox.org/cgi-bin/mailman/listinfo/scratchbox-users
> >
>
>
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