Hi,
I want to build an object code for ARM at91rm9200 board from a Makefile using a crosscompiler . So please would somebody help me.

thanks and regards
julio_jeorje

How do you expect anyone to be able to help you with this?? You provide no details. What version/distro of LInux? What "makefile", for what software, and what crosscompiler? What have you done/tried? What error(s) do you see?? Without details and an exact question, no one can help you.

I am using rhel5.Linux kernel in my pc is 2.6.18-128.el5 and on my board is 2.6.12.The cross compiler I am using is gcc-4.1.0-glibc-2.3.2.Now I have char driver code in my pc which is implemented using a makefile.I Know how to crosscompile an ordinary .c file for the arm board. But, I would like to know how to crosscompile the char driver code for arm board.

Moved: This thread is more suitable in Programming and has been moved accordingly to help your thread/question get the exposure it deserves.

Ok your question is a bit ambiguous but normally you'd have have your compiler say gcc or g++ you need to add the name of the cross compiler you are using rather than just gcc, you may also need to add the path to the cross compiler in you paths.
So to make for a normal file you have just g++ EG
TRGT =
CC =$(TRGT)g++
CP = $(TRGT)objcopy
AS = $(TRGT)gcc -x assembler-with-cpp

For the cross you need to add the full name to your compiler, so if you are using a arm compiler call ed arm-linux-g++ EG

TRGT = arm-linux-
CC =$(TRGT)g++
CP = $(TRGT)objcopy
AS = $(TRGT)gcc -x assembler-with-cpp

I think we need a lot more information from you, like why doesn't it compile? What errors are you getting? Are you talking about compiling against you boards kernel?