I'm getting this linker error: arm-none-eabi/lib/thumb2libc.a(lib_a-sbrkr.o): In function `_sbrk_r': sbrkr.c:(.text+0xc): undefined reference to `_sbrk' collect2: ld returned 1 exit status I think I partly figured out the linker problem. If I remove all references to malloc and free, the source compiles (CodeSourcery G++). So, obviously I have a problem with malloc/free. I believe it's using the compiler's built in functions. So, what do I do? I have no idea what's missing here. If extra code needs to be written, I'm not sure how or why. Shouldn't this be taken care of by the compiler?
Jerry Milner wrote: > I'm getting this linker error: > > arm-none-eabi/lib/thumb2libc.a(lib_a-sbrkr.o): In function `_sbrk_r': > sbrkr.c:(.text+0xc): undefined reference to `_sbrk' > collect2: ld returned 1 exit status > > I think I partly figured out the linker problem. If I remove all > references to malloc and free, the source compiles (CodeSourcery G++). > So, obviously I have a problem with malloc/free. I believe it's using > the compiler's built in functions. So, what do I do? I have no idea > what's missing here. If extra code needs to be written, I'm not sure how > or why. Shouldn't this be taken care of by the compiler? Suggestion can be found http://en.mikrocontroller.net/topic/155464#new