Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d9ff5f38 authored by Adrian Bunk's avatar Adrian Bunk Committed by Linus Torvalds
Browse files

cleanup arch/alpha/Makefile 



- binutils 2.7 is far below the current minimum supported version,
  and there's therefore no longer a need for an extra test

- since even gcc 3.2 already supports all options used we can use them
  unconditionally

Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fabc7f66

arch/alpha/Makefile

+16 −67
Original line number Diff line number Diff line
@@ -12,73 +12,22 @@ NM := $(NM) -B 


LDFLAGS_vmlinux	:= -static -N #-relax

CHECKFLAGS	+= -D__alpha__ -m64

cflags-y	:= -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)



ifeq ($(old_gas),y)

$(error The assembler '$(AS)' does not support the BWX instruction)

endif



# Determine if GCC understands the -mcpu= option.

have_mcpu        := $(call cc-option-yn, -mcpu=ev5)

have_mcpu_pca56  := $(call cc-option-yn, -mcpu=pca56)

have_mcpu_ev6    := $(call cc-option-yn, -mcpu=ev6)

have_mcpu_ev67   := $(call cc-option-yn, -mcpu=ev67)

have_msmall_data := $(call cc-option-yn, -msmall-data)



cflags-$(have_msmall_data) += -msmall-data



# Turn on the proper cpu optimizations.

ifeq ($(have_mcpu),y)

  mcpu_done := n

cflags-y	:= -pipe -mno-fp-regs -ffixed-8 -msmall-data



cpuflags-$(CONFIG_ALPHA_EV67)		:= -mcpu=ev67

cpuflags-$(CONFIG_ALPHA_EV6)		:= -mcpu=ev6

cpuflags-$(CONFIG_ALPHA_POLARIS)	:= -mcpu=pca56

cpuflags-$(CONFIG_ALPHA_SX164)		:= -mcpu=pca56

cpuflags-$(CONFIG_ALPHA_EV56)		:= -mcpu=ev56

cpuflags-$(CONFIG_ALPHA_EV5)		:= -mcpu=ev5

cpuflags-$(CONFIG_ALPHA_EV4)		:= -mcpu=ev4

# 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.

  ifeq ($(CONFIG_ALPHA_GENERIC),y)

    mcpu := ev5

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)

    mcpu := pca56

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)

    mcpu := pca56

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)

    mcpu := ev4

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)

    mcpu := ev56

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)

    mcpu := ev5

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)

    mcpu := ev67

    mcpu_done := y

  endif

  ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)

    ifeq ($(have_mcpu_ev6),y)

      mcpu := ev6

    else

      ifeq ($(have_mcpu_pca56),y)

        mcpu := pca56

      else

        mcpu=ev56

      endif

    endif

    mcpu_done := y

  endif

  cflags-$(mcpu_done) += -mcpu=$(mcpu)

endif

cpuflags-$(CONFIG_ALPHA_GENERIC)	:= -mcpu=ev5



cflags-y				+= $(cpuflags-y)





# For TSUNAMI, we must have the assembler not emulate our instructions.