compile error of undefined reference to "__udivsi3"

Min Ge wrote:
> The compile error is undefined reference to "__udivsi3".

Do the linker-parameters include -lgcc?


Martin Thomas

Martin Thomas wrote:
> Min Ge wrote:
>> The compile error is undefined reference to "__udivsi3".
>
> Do the linker-parameters include -lgcc?
>
>
> Martin Thomas

hi, I have the same problem. Please tell me where I add the option
-lgcc.


this is my console output :

make -k all
..linking
arm-elf-ld -v -Map main.map -Tlpc2214-rom.ld -o main.out boot.o system.o
rs232.o blink.o main.o
rs232.o: In function `UART0Init':
/cygdrive/c/temp/workspace/serial/rs232.c:9: undefined reference to
`__udivsi3'
rs232.o: In function `UART1Init':
/cygdrive/c/temp/workspace/serial/rs232.c:57: undefined reference to
`__udivsi3'
GNU ld version 2.17
make: *** [main.out] Error 1
make: Target `all' not remade because of errors.


I'm waiting for your answer thanks

ayman wrote:
> hi, I have the same problem. Please tell me where I add the option
> -lgcc.

In Makefile look for the section with LDFLAGS and add (append) the -lgcc
flag to the flags already defined e.g. with

LDFLAGS += -lgcc

Greetings
Stefan

> arm-elf-ld -v -Map main.map -Tlpc2214-rom.ld -o main.out boot.o system.o

It's easier to use the compiler-frontend (arm-elf-gcc) for linking since
this will "adjust" the search path for needed libgcc.a "automatically".
See for example the makefile that come with the WinARM Examples in the
package or on my web-site.

Martin Thomas