Compiling my C++ code for ARM Architecture

Question

I am a java developer. I have some C++ code to make some system realted calls. This code is compiled on Intel 32-bit platform using GCC (I have make files) and it works fine on regular Intel based 32-bit linux machine. Now I need to run this on a linux OS running on Marvell ARM processor. When I load the shared objects in java I get the following error.

cannot open shared object file: No such file or directory (Possible cause: can't load IA 32-bit .so on a ARM-bit platform)

Please tell me how to resolve this issue. I looked at the GCC options and I found one option to specify the architecture (-march=armv5) and I can't compile with that option.

Thanks in advance.

You need a cross-compiler, or just re-compile on the Linux ARM system. — Paul R
– Paul R, Commented Jan 19, 2011 at 20:38
Visit ymorin.is-a-geek.org/hg/crosstool-ng which supplies a suite for creating cross-compilers for many host and target platforms — mmmmmmmm
– mmmmmmmm, Commented Jan 19, 2011 at 20:43
Also, crosstool-ng homepage: ymorin.is-a-geek.org/projects/crosstool — Hasturkun
– Hasturkun, Commented Jan 19, 2011 at 20:55
get the codesourcery compiler and cross compile your program (replace gcc with arm-none-linux-gcc, etc in the makefile). — old_timer
– old_timer, Commented Jan 20, 2011 at 2:41

shodanex · Accepted Answer · 2011-01-20 08:03:08Z

7

You need more than just a switch, you need a cross-compiler. You can make your own, but probably the easiest way is :

Find the development tools for your board. It probably comes with a development kit that includes a cross-compilation toolchain
If you don't have these, you can try to install a precompiled cross-compilation like the ones provided freely by CodeSourcery

Then you have to make the location of your toolchain (look for something like arm-none-linux-gnueabi-gcc) available in your path.

Cross compiling simple project is then easy, just override the CC variable in your Makefile :

CROSS = arm-none-linux-gnueabi-
CC = $(CROSS)gcc
LD = $(CROSS)ld

answered Jan 20, 2011 at 8:03

shodanex

15.5k11 gold badges64 silver badges92 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Jeff Lamb · Accepted Answer · 2011-01-19 20:40:11Z

0

Try using the -mcpu=armv5 switch for gcc.

answered Jan 19, 2011 at 20:40

Jeff Lamb

5,8854 gold badges40 silver badges57 bronze badges

2 Comments

M99 Over a year ago

-mcpu is deprecated. if I use -march=armv5, i get the following error. error: bad value (armv5) for -march= switch

gravitron Over a year ago

In most cases (this case included) you need a cross compiler that targets the ARM environment and the compiler that produced the intel code will not know how to also compile arm code.

shreyasm-dev · Accepted Answer · 2021-01-08 22:33:37Z

0

Here is what's written on http://elinux.org/RPi_Software#ARM:

-Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s

edited Jan 8, 2021 at 22:33

shreyasm-dev

2,9025 gold badges23 silver badges43 bronze badges

answered Jun 4, 2013 at 0:23

M.G.

5401 gold badge6 silver badges14 bronze badges

Collectives™ on Stack Overflow

Compiling my C++ code for ARM Architecture

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related