# # 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 LDFLAGS_vmlinux = -static -T arch/alpha/vmlinux.lds.s -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) have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) have_msmall_data := $(shell if $(CC) -msmall-data -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) ifeq ($(have_msmall_data),y) CFLAGS := $(CFLAGS) -msmall-data endif # Turn on the proper cpu optimizations. ifeq ($(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)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy) CFLAGS := $(CFLAGS) -mcpu=pca56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy) CFLAGS := $(CFLAGS) -mcpu=pca56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny) CFLAGS := $(CFLAGS) -mcpu=ev4 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny) CFLAGS := $(CFLAGS) -mcpu=ev56 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny) CFLAGS := $(CFLAGS) -mcpu=ev5 mcpu_done := y endif ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy) CFLAGS := $(CFLAGS) -mcpu=ev67 mcpu_done := y endif ifeq ($(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/built-in.o endif LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a MAKEBOOT = $(MAKE) -C arch/alpha/boot rawboot: @$(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/alpha/kernel clean @$(MAKEBOOT) clean archmrproper: rm -f include/asm-alpha/asm_offsets.h vmlinux: arch/alpha/vmlinux.lds.s bootpfile: @$(MAKEBOOT) bootpfile prepare: include/asm-$(ARCH)/asm_offsets.h arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \ include/config/MARKER include/asm-$(ARCH)/asm_offsets.h.tmp: arch/$(ARCH)/kernel/asm-offsets.s @$(generate-asm-offsets.h) < $< > $@ include/asm-$(ARCH)/asm_offsets.h: include/asm-$(ARCH)/asm_offsets.h.tmp @echo -n ' Generating $@' @$(update-if-changed) CLEAN_FILES += include/asm-$(ARCH)/offset.h.tmp \ include/asm-$(ARCH)/offset.h