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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 /home/guest/xc16x/lib/gcc/xc16x-elf/lib/xc16xl/libc.a(lib_a-sbrkr.o): In function _sbrk_r: /home/guest/newlib-1.18.0/newlib/libc/reent/sbrkr.c:60: undefined reference to __sbrk /home/guest/fromKpit/newlib-1.18.0/newlib/libc/reent/sbrkr.c:60: 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 libnosys.al 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, Phung
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