F. Fennek wrote: > On Mon, Nov 23, 2009 at 11:44 AM, Andrew Haley <aph@xxxxxxxxxx> wrote: >> F. Fennek wrote: >> >>> I am trying to build a cross compiler for a cortex M3 ARM target on a >>> Linux host. >>> And I have a rather basic question. >>> If I google on ARM toolchain I find a lot of help BUT most toolchain >>> builders are scripts and most of them use patches of some sort. >>> The scripts (or work flow) are mostly explained rather good but where >>> the used patches come from are never explained. >>> So my question is: >>> Do I need patches to build an ARM cross compiler when I use the GCC source code? >> It depends on your target OS. When I build a ARM Linux cross-compiler, I use >> unpatched gcc sources. >> > I'm trying to use gcc for an embedded system (no OS, or maybe a simple RTOS). > Possibly I don't even want to use newlib or glibc, but that's a new > question I think. I make one step at a time. Well, that's going to be much harder. You can't build a compliant C compiler without some kind of library, which is why people who want naked systems build a gcc for newlib. There's no reason not to build a gcc that targets newlib, as you don't have to call newlib if you don't want to, and it makes building everything much easier. Andrew.
