Linking fasm.o on x86-64 Multilib System

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Pinczakko

Joined: 02 May 2004
Posts: 34
Location: Takabonerate National Park, Indonesia

Pinczakko 21 Jan 2009, 22:37

I found that the download-able fasm distribution for Linux is only in 32-bit ELF object code form. Therefore, I need to pass -m32 to GCC on my x86_64 multilib system to be able to compile it.

Quote:

me@mach:fasm $ gcc -v -m32 fasm.o -o fasm
Reading specs from /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/specs
Target: x86_64-slamd64-linux
Configured with: ../gcc-4.2.3/configure --prefix=/usr --libdir=/usr/lib64 --enable-shared --enable-languages=ada,c,c++,fortran,java,objc --enable-threads=posix --enable-__cxa_atexit --disable-checking --with-gnu-ld --disable-alsa --verbose --target=x86_64-slamd64-linux --host=x86_64-slamd64-linux
Thread model: posix
gcc version 4.2.3
/usr/libexec/gcc/x86_64-slamd64-linux/4.2.3/collect2 --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o fasm /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../lib/crt1.o /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../lib/crti.o /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/32/crtbegin.o -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/32 -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../x86_64-slamd64-linux/lib/../lib -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3 -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../x86_64-slamd64-linux/lib -L/usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../.. fasm.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/32/crtend.o /usr/lib64/gcc/x86_64-slamd64-linux/4.2.3/../../../../lib/crtn.o

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21 Jan 2009, 22:37

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4623
Location: Argentina

LocoDelAssembly 21 Jan 2009, 23:06

I have just checked and the Linux version does come with an executable called "fasm" and also the fasm.o object. Note that the executable was compiled by fasm and uses SYSCALLs while the object file uses libc instead.

I don't know why the Unix/libc version is now part of the Linux package though, but I'm almost sure that the addition is recent.

21 Jan 2009, 23:06

Pinczakko

Joined: 02 May 2004
Posts: 34
Location: Takabonerate National Park, Indonesia

Pinczakko 22 Jan 2009, 00:24

yes indeed Wink

. I was just toying around with the object code when I found it cannot be compiled simply with:

Quote:

gcc -o fasm fasm.o

22 Jan 2009, 00:24

semiono

Joined: 31 Aug 2007
Posts: 198
Location: section '.code' executable

semiono 24 Jan 2009, 14:42

Help!
My os current is CRUX64 >
gcc -m32 fasm.o -o fasm
...bla-blah
ld: ....lgcc not found, skip...
exit=1

What is the lgcc ? Where is I may found it?

24 Jan 2009, 14:42

Endre

Joined: 29 Dec 2003
Posts: 215
Location: Budapest, Hungary

Endre 25 Jan 2009, 11:33

Does your 64bit linux support 32bit executables (kernel config)?
Does your 64bit linux have 32bit libraries installed?

25 Jan 2009, 11:33

semiono

Joined: 31 Aug 2007
Posts: 198
Location: section '.code' executable

semiono 27 Jan 2009, 11:18

It's would be better to have binary libs built-in to fasm distributive...
Very Happy

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27 Jan 2009, 11:18

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4623
Location: Argentina

LocoDelAssembly 27 Jan 2009, 13:19

But the Linux package already comes with an executable! If it doesn't work it is because of either you don't have execute permissions on the file or your distro is pure 64 bits.

27 Jan 2009, 13:19

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