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Linking problem under linux

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Join Date: Jul 2009

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m_a_xim

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Linking problem under linux

Jul 9th, 2009

Hello,
I'm actually learning assembly and I have a problem even though I am copying word for word what my book tells me. Here's the code:

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.section .data
helloworld:
.ascii "hello world\n\0"
.section .text
.globl _start
_start:
pushq $helloworld
call printf
pushq $0
call exit
.section .data
helloworld:
.ascii "hello world\n\0"
.section .text
.globl _start
_start:
pushq $helloworld
call printf
pushq $0
call exit

(there used to be 'pushl's but as I am using an AMD64 I had to replace them with 'pushq's)
It is then written that I must compile and link in this way:

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as helloworld-lib.s -o helloworld-lib.o
ld -dynamic-linker /lib/ld-linux.so.2 \
   -o helloworld-lib helloworld-lib.o -lc

It works without printing out an error but during execution of the newly generated executable, it crashes immediately and I get this:
"bash: ./helloworld-lib: Accessing a corrupted shared library"

I also tried replacing "-dynamic-linker /lib/ld-linux.so.2" by "-dynamic-linker /lib/ld-linux-x86-64.so.2" but I get this error now when I execute "Illegal instruction".
After checking with gdb, I conclude that the SIGILL is sent during the fprintf function call.

Any idea how I could solve this problem?
Thanks.