# This material is inherited from the Linux Makefile: arch/alpha/Makefile:### 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 -BLINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relaxCFLAGS := $(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 := $(CFLAGS) -mcpu=ev56      endif    endif    mcpu_done := y  endifendif# For TSUNAMI, we must have the assembler not emulate our instructions.# The same is true for IRONGATE, POLARIS, PYXIS.# BWX is most important, but we don't really want any emulation ever.ifeq ($(old_gas),y)  # How do we do #error in make?  CFLAGS := --error-please-upgrade-your-assemblerendifCFLAGS := $(CFLAGS) -Wa,-mev6