freebsd-skq/sys/conf/Makefile.ia64
marcel 4e38a7aca1 Build the kernel with -mconstant-gp. This means that function calls,
with the exception of indirect function calls, are assumed to be
intra load module and thus that GP will be the same. This avoids
saving, setting and restoring GP for each function call and
reduces the kernel with ~320KB. There's obviously a performance
benefit as well.

Note that since we generally don't know if calls will be intra or
inter load module when we're compiling kernel modules, -mconstant-gp
cannot be used for modules.
2002-10-13 07:07:51 +00:00

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Makefile

# Makefile.ia64 -- with config changes.
# Copyright 1990 W. Jolitz
# from: src/sys/conf/Makefile.alpha,v 1.76
# $FreeBSD$
#
# Makefile for FreeBSD
#
# This makefile is constructed from a machine description:
# config machineid
# Most changes should be made in the machine description
# /sys/ia64/conf/``machineid''
# after which you should do
# config machineid
# Generic makefile changes should be made in
# /sys/conf/Makefile.ia64
# after which config should be rerun for all machines.
#
GCC3= you bet
# Which version of config(8) is required.
%VERSREQ= 500011
STD8X16FONT?= iso
.if !defined(S)
.if exists(./@/.)
S= ./@
.else
S= ../../..
.endif
.endif
.include "$S/conf/kern.pre.mk"
CFLAGS+= -mconstant-gp
ASM_CFLAGS= -x assembler-with-cpp -Wa,-x -DLOCORE ${CFLAGS}
%BEFORE_DEPEND
%OBJS
%FILES.c
%FILES.s
%FILES.m
%CLEAN
locore.o: $S/$M/$M/locore.s assym.s
${NORMAL_S}
%RULES
.include "$S/conf/kern.post.mk"