Messages in this thread |  | | Date | Tue, 07 Nov 2000 19:03:28 -0500 | From | Jeff Garzik <> | Subject | Re: Installing kernel 2.4 |
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"Jeff V. Merkey" wrote: > If the compiler always aligned all functions and data on 16 byte > boundries (NetWare) > for all i386 code, it would run a lot faster.
Are you saying that it isn't? Have you look at gcc-generated assembly from a recent 2.2.x or 2.4.x kernel?
2.2.x build command line, note use of "...align...": /usr/bin/kgcc -D__KERNEL__ -I/spare/cvs/linux_2_2/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -D__SMP__ -pipe -fno-strength-reduce -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2 -DCPU=686 -c -o extable.o extable.c
2.4.x, note "preferred-stack-boundary" and generated asm code... gcc -D__KERNEL__ -I/spare/cvs/linux_2_4/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -pipe -mpreferred-stack-boundary=2 -march=i686 -DMODULE -DMODVERSIONS -include /spare/cvs/linux_2_4/include/linux/modversions.h -c -o emd.o emd.c
Jeff
-- Jeff Garzik | "When I do this, my computer freezes." Building 1024 | -user MandrakeSoft | "Don't do that." | -level 1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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