Re: Toolchain question

[Leif Lindholm <leif.lindholm@linaro.org>]

On Tue, Aug 09, 2016 at 11:02:55AM +0200, Michael Zimmermann wrote:
> > I use both, and never notice any difference. The primary differences
> > are newlib vs glibc, and in some cases, whether symbols are decorated
> > with a leading _
> > The actual code generation is more dependent on the default target
> > (i.e., -march/-mthumb for ARM) than bare-metal/hosted.
> 
> > I only ever use the native
> > compiler under Linux, or one of the linaro "-linux-" flavours if
> > cross-compiling.
> 
> I think that works because edk2 excludes all toolchain libs with -nostdlib
> and fno-builtin.
> I know from other bootloader projects like LK(LittleKernel) which link
> against libgcc that compiling with anything but bare-metal toolchains makes
> the resulting binary un-bootable.

Sure, but those are effectively bugs in the corresponding projects.

If they require special options/libraries they should (where possible)
manually configure this, or (where not) exit with an error.

Regards,

Leif