Cross compiling : problem linking

2 messages, 1 author, 2003-10-02 · open the first message on its own page

Cross compiling : problem linking

From: Toni Van Remortel <hidden>
Date: 2003-10-02 12:56:56

Hi all,

I try to cross compile a small test program for the EP505 board. I use
ELDK as compiler set.

When using this compile command:

ppc_4xx-gcc -O -v -nostdlib -nostartfiles -mno-eabi -fno-exceptions \
-fno-builtin -Wl,-Tscript.ld,-N -o rt_mod rt_mod.c

I get after a while:

/opt/eldk/usr/ppc-linux/bin/ld: cannot open linker script file \
script.ld: Onbekend bestand of map
collect2: ld returned 1 exit status

I don't know what is wrong, but 'script.ld' isn't anywhere on my system.

Side note: I used the compiler set already to cross compile a kernel,
XFree and FLTK, so it works.

Any idea?

PS: the program currently should make a square wave on EBC P1 D1
--
                           Toni Van Remortel
              Wetenschappelijk Medewerker - D-science lab
  Real time Linux for embedded systems: http://linemb.d-sciencelab.com
              Tel: +32 3 205 61 72 - Fax: +32 3 205 61 95
                      E-mail: t.vanremortel@ha.be


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Cross compiling : problem linking

From: Toni Van Remortel <hidden>
Date: 2003-10-02 13:26:36

Reduced the error to:

toni rt_mod # make
ppc_4xx-gcc -g -O -Werror   -c -o rt_mod.o rt_mod.c
ppc_4xx-gcc -nostartfiles -fno-exceptions -fno-builtin  -o rt_mod
rt_mod.o
/opt/eldk/usr/ppc-linux/bin/ld: warning: cannot find entry symbol
_start; defaulting to 10000184
rt_mod.o: In function `block_wave':
/ppc/rt_mod/rt_mod.c:14: undefined reference to `outb'
/ppc/rt_mod/rt_mod.c:14: relocation truncated to fit: R_PPC_REL24 outb
rt_mod.o: In function `main':
/ppc/rt_mod/rt_mod.c:21: undefined reference to `iopl'
/ppc/rt_mod/rt_mod.c:21: relocation truncated to fit: R_PPC_REL24 iopl
collect2: ld returned 1 exit status
make: *** [rt_mod] Fout 1

Somebody?
--
                           Toni Van Remortel
              Wetenschappelijk Medewerker - D-science lab
  Real time Linux for embedded systems: http://linemb.d-sciencelab.com
              Tel: +32 3 205 61 72 - Fax: +32 3 205 61 95
                      E-mail: t.vanremortel@ha.be


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
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