Adrian Bunk wrote:

On Tue, Jul 10, 2007 at 01:42:48PM -0700, H. Peter Anvin wrote:

quoted

Segher Boessenkool wrote:

quoted

Well at least with -fno-toplevel-reorder it is guaranteed
to work (not the same thing as "is working", heh, but fairly
close).

It seems to me GCC should grow an option to insert .code16gcc
by itself (-m16 perhaps?)  Or GAS could get a flag to include
a file as a prelude before the main thing.  Neither will help
Linux right now of course.

-m16 is the right thing, and it also provides a proper hook for 
eventually having a real 16-bit backend (there are at least two 
projects for doing that.)

For now, I have:

Can't you use the global CFLAGS and append your specific ones?

quoted

CFLAGS          := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \

-g ???

quoted

                   $(cflags-$(ARCH)) \
                   -Wall -Wstrict-prototypes \
                   -march=i386 -mregparm=3 \

Why -march=i386 ?

To prevent gcc from using instructions (particularly cmovxx) that not
all processors will understand.

--
				Brian Gerst