cross compiling the hello trust zone example

The example was written for ARM Compiler 4.x/5.x, which tool chain are you using?

What error messages are you seeing when you build the example?

I tried building the Versatile Express examples, and had to create an "obj" directory but then the build script worked.

Hi Martin

Thanks for the quick reply. I am using arm-eaby-4.7. Here is the error:

cc main_normal.c -o main_normal 

main_normal.c:3:7: error: expected declaration specifiers or ‘...’ before numeric constant

__smc(0) void yeild(void);

       ^

make: *** [main_normal] Error 1

I am sure the script is fine. I am trying to compile the code for a different platform. Also, the readme file stated that there is a .sh file? I did not see it in the package I downloaded.

seanans schrieb:

Hi Martin

Thanks for the quick reply. I am using arm-eaby-4.7. Here is the error:

cc main_normal.c -o main_normal 

main_normal.c:3:7: error: expected declaration specifiers or ‘...’ before numeric constant

__smc(0) void yeild(void);

       ^

make: *** [main_normal] Error 1

I am sure the script is fine. I am trying to compile the code for a different platform. Also, the readme file stated that there is a .sh file? I did not see it in the package I downloaded.

I guess you mean GCC.

__smc(0) is an intrinsic in ARM CC. Try this

__asm__(" smc #0");

instead.

If you're using GCC I expect that you'll face a number of problems...

• The assembler is written in armasm syntax, which is incompatible with GAS syntax. That should be fairly easy to work around.
• The example makes some assumption about how to call/initialize the C library, which will be different if you're not using the one from the ARM tool chain.

Yes it is gcc. I'll try the update.

Thanks

Greetings-

I am running into another error now. It is:

gcc     -c -o retarget_secure.o retarget_secure.c

/tmp/cctqYaNq.s: Assembler messages:

/tmp/cctqYaNq.s:15: Error: operand type mismatch for `call'

make: *** [retarget_secure.o] Error 1

Here is my makefile:

CC = gcc

objects := $(patsubst %.c,%.o,$(wildcard *.c))

foo:$(objects) monitor.s startup_normal.s startup_secure.s v7.s

     $(CROSS_COMPILE)$(CC) -mcpu=cortex-a15 -o foo $(objects)

Can you help?