Linker error

Phung Nguyen
Tue Aug 24 03:43:00 GMT 2010

Dear all,

I am trying to build cross compiler for xc16x. I built successfully
binutils 2.18; gcc 4.0 and newlib 1.18. Everything is fine when
compiling a simple C file without any library call. It is also fine
when making a simple call to printf like printf("Hello world").
However, i got error message from linker when call printf("i=%i",i);
The error message is as follows

In function _sbrk_r:
/home/guest/newlib-1.18.0/newlib/libc/reent/sbrkr.c:60: undefined
reference to __sbrk
undefined reference to __sbrk

collect2: ld returned 1 exit status
make: *** [bubble.out] Error 1

In directory libgloss/xc16x, there are neccessary files like sbrk.c;
read.c; write.c...
I logged the make and found out an error when making libgloss as in
the attached file. Is it the reason to cause the problem?

when making libgloss, in directory libgloss/libnosys, there are all .o
files and but int libgloss/xc16x, there are no files
except Makefile, config.log and config.status. Is it enough?

Is there any idea how to solve the problem? I highly appreciate any help.

Best regards,
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