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|
#
# alpha/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
#
NM := nm -B
LINKFLAGS = -static -T arch/alpha/vmlinux.lds #-N -relax
CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8
# Determine if we can use the BWX instructions with GAS.
old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
# Determine if GCC understands the -mcpu= option.
have_mcpu := $(shell if $(CC) -mcpu=ev5 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu_pca56 := $(shell if $(CC) -mcpu=pca56 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
have_mcpu_ev6 := $(shell if $(CC) -mcpu=ev6 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi)
# Turn on the proper cpu optimizations.
ifeq ($(have_mcpu),y)
# If GENERIC, make sure to turn off any instruction set extensions that
# the host compiler might have on by default. Given that EV4 and EV5
# have the same instruction set, prefer EV5 because an EV5 schedule is
# more likely to keep an EV4 processor busy than vice-versa.
mcpu_done := n
ifeq ($(CONFIG_ALPHA_GENERIC),y)
CFLAGS := $(CFLAGS) -mcpu=ev5
mcpu_done := y
endif
ifeq ($(mcpu_done)$(CONFIG_ALPHA_PYXIS),ny)
CFLAGS := $(CFLAGS) -mcpu=ev56
mcpu_done := y
endif
ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS),ny)
ifeq ($(have_mcpu_pca56),y)
CFLAGS := $(CFLAGS) -mcpu=pca56
else
CFLAGS := $(CFLAGS) -mcpu=ev56
endif
mcpu_done := y
endif
ifeq ($(mcpu_done)$(CONFIG_ALPHA_NAUTILUS)$(have_mcpu_ev67),nyy)
CFLAGS := $(CFLAGS) -mcpu=ev67
mcpu_done := y
endif
ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
CFLAGS := $(CFLAGS) -mcpu=ev4
mcpu_done := y
endif
ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
ifeq ($(have_mcpu_ev6),y)
CFLAGS := $(CFLAGS) -mcpu=ev6
else
ifeq ($(have_mcpu_pca56),y)
CFLAGS := $(CFLAGS) -mcpu=pca56
else
CFLAGS := $(CFLAGS) -mcpu=ev56
endif
endif
mcpu_done := y
endif
endif
# For TSUNAMI, we must have the assembler not emulate our instructions.
# The same is true for IRONGATE, POLARIS, PYXIS.
# BWX is most important, but we don't really want any emulation ever.
ifeq ($(old_gas),y)
# How do we do #error in make?
CFLAGS := --error-please-upgrade-your-assembler
endif
CFLAGS := $(CFLAGS) -Wa,-mev6
HEAD := arch/alpha/kernel/head.o
SUBDIRS := $(SUBDIRS) arch/alpha/kernel arch/alpha/mm arch/alpha/lib \
arch/alpha/math-emu
CORE_FILES := arch/alpha/kernel/kernel.o arch/alpha/mm/mm.o $(CORE_FILES)
ifeq ($(CONFIG_MATHEMU),y)
CORE_FILES := $(CORE_FILES) arch/alpha/math-emu/math-emu.o
endif
LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a
MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
rawboot:
@$(MAKEBOOT) rawboot
#
# My boot writes directly to a specific disk partition, I doubt most
# people will want to do that without changes..
#
msb my-special-boot:
@$(MAKEBOOT) msb
bootimage:
@$(MAKEBOOT) bootimage
srmboot:
@$(MAKEBOOT) srmboot
archclean:
@$(MAKE) -C arch/$(ARCH)/kernel clean
@$(MAKEBOOT) clean
archmrproper:
archdep:
@$(MAKEBOOT) dep
bootpfile:
@$(MAKEBOOT) bootpfile
|
