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: Adrian Bunk <bunk@stusta.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -12,73 +12,22 @@ NM := $(NM) -B
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LDFLAGS_vmlinux := -static -N #-relax
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LDFLAGS_vmlinux := -static -N #-relax
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CHECKFLAGS += -D__alpha__ -m64
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CHECKFLAGS += -D__alpha__ -m64
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cflags-y := -pipe -mno-fp-regs -ffixed-8
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cflags-y := -pipe -mno-fp-regs -ffixed-8 -msmall-data
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# Determine if we can use the BWX instructions with GAS.
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cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67
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old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi)
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cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6
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cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56
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cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56
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cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56
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cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5
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cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4
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# If GENERIC, make sure to turn off any instruction set extensions that
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# the host compiler might have on by default. Given that EV4 and EV5
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# have the same instruction set, prefer EV5 because an EV5 schedule is
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# more likely to keep an EV4 processor busy than vice-versa.
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cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5
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ifeq ($(old_gas),y)
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cflags-y += $(cpuflags-y)
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$(error The assembler '$(AS)' does not support the BWX instruction)
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endif
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# Determine if GCC understands the -mcpu= option.
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have_mcpu := $(call cc-option-yn, -mcpu=ev5)
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have_mcpu_pca56 := $(call cc-option-yn, -mcpu=pca56)
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have_mcpu_ev6 := $(call cc-option-yn, -mcpu=ev6)
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have_mcpu_ev67 := $(call cc-option-yn, -mcpu=ev67)
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have_msmall_data := $(call cc-option-yn, -msmall-data)
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cflags-$(have_msmall_data) += -msmall-data
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# Turn on the proper cpu optimizations.
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ifeq ($(have_mcpu),y)
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mcpu_done := n
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# If GENERIC, make sure to turn off any instruction set extensions that
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# the host compiler might have on by default. Given that EV4 and EV5
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# have the same instruction set, prefer EV5 because an EV5 schedule is
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# more likely to keep an EV4 processor busy than vice-versa.
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ifeq ($(CONFIG_ALPHA_GENERIC),y)
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mcpu := ev5
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy)
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mcpu := pca56
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy)
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mcpu := pca56
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny)
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mcpu := ev4
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny)
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mcpu := ev56
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny)
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mcpu := ev5
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy)
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mcpu := ev67
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mcpu_done := y
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endif
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ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny)
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ifeq ($(have_mcpu_ev6),y)
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mcpu := ev6
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else
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ifeq ($(have_mcpu_pca56),y)
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mcpu := pca56
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else
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mcpu=ev56
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endif
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endif
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mcpu_done := y
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endif
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cflags-$(mcpu_done) += -mcpu=$(mcpu)
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endif
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# For TSUNAMI, we must have the assembler not emulate our instructions.
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# For TSUNAMI, we must have the assembler not emulate our instructions.
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