Lpc2000

Hi all,

As a new member I would like to ask you a question.

I'm getting these error's from arm-elf-ld :

div_error.o: In function `foo':
div_error.c:(.text+0x18): undefined reference to `__divsi3'

Now I know that these functions are in libgcc.a
and apparently the compiler includes that :

roelofh@compraq:~/$ arm-elf-gcc -print-libgcc-file-name
/usr/local/arm/lib/gcc/arm-elf/3.4.4/libgcc.a

So it knows where the library is.

But the following still generates error's :

#include "lpc2292.h"

#define true 1
#define false 0

#define xtal 12000

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;

void foo(uint16_t baudrate)
{
        uint16_t temp16;
        uint32_t temp32;
        union bitrate_divisor
        {
                uint16_t divisor_word;
                uint8_t divisor_byte[2];
        } bdrate;
        uint8_t multiplier;
        uint8_t vpbdivider;

        multiplier=5;
        vpbdivider=2;

        temp32=(uint32_t)(multiplier*xtal*1000);
        temp32=temp32/vpbdivider;
        temp16=temp32/(16*baudrate);
        // temp16 should hold the value 195
        bdrate.divisor_word=temp16;
        u0dll=bdrate.divisor_byte[0];
        u0dlm=bdrate.divisor_byte[1];
}


int main(void)
{
        foo(9600);

        while(true)
        {
        }
}


This is what I use to compile and link :

arm-elf-gcc -mcpu=arm7tdmi -DROM_RUN -Os -std=gnu99 -I. -c
-mapcs-frame -Wall div_error.c -o div_error.o
arm-elf-ld -Tlpc2292-rom-v2.ld -Map=div_error.map div_error.o crt0.o
--output div_error.elf


Including math.h did not work.

I downloaded and compiled the sources, with newlib 1.13,
from rod.info.

Any and all comments, remarks and suggetions will be
very much appreciated.

Thank you.

roelof