You undestood exactly!!! Your answer make very clear all the aspects of the problem
Thanks a lot In data mercoledì 14 aprile 2010 09:30:51, Andrew Stubbs ha scritto: : > On 14/04/10 08:08, Fabio Giovagnini wrote: > > Ok. so the Makefile for zImage needs to be modified to use the libc > > functions embedded into the kernel source tree. Is it right? > > If yes, how is it possible to have a general coccect behaviour? > > I'm sorry, I'm not sure I understand the question. > > Yes, the makefile needs to be modified to remove the dependency on > libgcc. This was done for the kernel itself a few versions ago. It means > that the toolchain does not need any special configuration to build the > kernel, in cases like this where the usermode compiler is incompatible > with the kernel. > > If you're asking how to do the modification, I don't know. I'm not a > kernel hacker. > > If you're asking how any hypothetical project should handle this, then > the answer is that they should rely on the toolchain, and not have to > worry about it. The kernel is special - it is traditionally compiled > with a toolchain unsuitable for building bare-metal programs. It is > desirable that the same compiler is used for user mode, and for the > kernel, because having a whole separate toolchain would be a lot of > wasted effort, but it means that the kernel makefiles have to work hard > to reconfigure the tools using custom parameters, linker scripts and > overriding compiler built-ins. > > Is that the answer to the question you were asking? > > Andrew > -- Fabio Giovagnini Aurion s.r.l. P.I e C.F. 00885711200 Tel. +39.051.594.78.24 Cell. +39.335.83.50.919 _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
