From 988883ceee339314f5dd099d162ef5339a41f31b Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Sun, 30 Oct 2005 15:00:09 -0800 Subject: [PATCH] --- yaml --- r: 11795 b: refs/heads/master c: d89ea9b8bb4c4ad63122cd2d2ee5110a52da51b8 h: refs/heads/master i: 11793: e1b32f9850c2221b4161e420ce57f1e1d8bfc4f3 11791: 555b1bc497897ed09a74e7e1484912765fc523b6 v: v3 --- [refs] | 2 +- trunk/arch/i386/Makefile.cpu | 18 +++++++++++++----- 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/[refs] b/[refs] index 8e487379dde9..78de4bc8c044 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 6a351cfeadd4b56a2a0031020c0cfb07cc0337fb +refs/heads/master: d89ea9b8bb4c4ad63122cd2d2ee5110a52da51b8 diff --git a/trunk/arch/i386/Makefile.cpu b/trunk/arch/i386/Makefile.cpu index 86c7bb1b95e5..8e51456df23d 100644 --- a/trunk/arch/i386/Makefile.cpu +++ b/trunk/arch/i386/Makefile.cpu @@ -1,6 +1,14 @@ # CPU tuning section - shared with UML. # Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML. +#-mtune exists since gcc 3.4, and some -mcpu flavors didn't exist in gcc 2.95. +HAS_MTUNE := $(call cc-option-yn, -mtune=i386) +ifeq ($(HAS_MTUNE),y) +tune = $(call cc-option,-mtune=$(1),) +else +tune = $(call cc-option,-mcpu=$(1),) +endif + align := $(cc-option-align) cflags-$(CONFIG_M386) += -march=i386 cflags-$(CONFIG_M486) += -march=i486 @@ -8,17 +16,17 @@ cflags-$(CONFIG_M586) += -march=i586 cflags-$(CONFIG_M586TSC) += -march=i586 cflags-$(CONFIG_M586MMX) += $(call cc-option,-march=pentium-mmx,-march=i586) cflags-$(CONFIG_M686) += -march=i686 -cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call cc-option,-mtune=pentium2) -cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call cc-option,-mtune=pentium3) -cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call cc-option,-mtune=pentium3) -cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call cc-option,-mtune=pentium4) +cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call tune,pentium2) +cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call tune,pentium3) +cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call tune,pentium3) +cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call tune,pentium4) cflags-$(CONFIG_MK6) += -march=k6 # Please note, that patches that add -march=athlon-xp and friends are pointless. # They make zero difference whatsosever to performance at this time. cflags-$(CONFIG_MK7) += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4) cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)) cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 -cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 +cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586) cflags-$(CONFIG_MWINCHIP2) += $(call cc-option,-march=winchip2,-march=i586) cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)