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build: clean up default cflags handling

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- reduce redundancy
- introduce a CPU_TYPE variable for cpu specific options

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 38209
This commit is contained in:
Felix Fietkau 2013-09-26 17:53:09 +00:00
parent 3e5da21b15
commit 569da024f0
1 changed files with 24 additions and 11 deletions
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35
include/target.mk
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@ -195,17 +195,30 @@ ifeq ($(DUMP),1)
# remove duplicates
FEATURES:=$(sort $(FEATURES))
endif
DEFAULT_CFLAGS_i386=-O2 -pipe -march=i486
DEFAULT_CFLAGS_x86_64=-O2 -pipe -march=athlon64
DEFAULT_CFLAGS_m68k=-Os -pipe -mcfv4e
DEFAULT_CFLAGS_mips=-Os -pipe -mips32 -mtune=mips32 -mno-branch-likely
DEFAULT_CFLAGS_mipsel=$(DEFAULT_CFLAGS_mips)
DEFAULT_CFLAGS_mips64=-Os -pipe -mips64 -mtune=mips64 -mabi=64
DEFAULT_CFLAGS_mips64el=$(DEFAULT_CFLAGS_mips64)
DEFAULT_CFLAGS_sparc=-Os -pipe -mcpu=ultrasparc
DEFAULT_CFLAGS_arm=-Os -pipe -march=armv5te -mtune=xscale
DEFAULT_CFLAGS_armeb=$(DEFAULT_CFLAGS_arm)
DEFAULT_CFLAGS=$(if $(DEFAULT_CFLAGS_$(ARCH)),$(DEFAULT_CFLAGS_$(ARCH)),-Os -pipe)
CPU_CFLAGS = -Os -pipe
ifneq ($(findstring mips,$(ARCH)),)
ifneq ($(findstring mips64,$(ARCH)),)
CPU_TYPE ?= mips64
else
CPU_TYPE ?= mips32
endif
CPU_CFLAGS += -mno-branch-likely
CPU_CFLAGS_mips32 = -mips32 -mtune=mips32
CPU_CFLAGS_mips64 = -mips64 -mtune=mips64 -mabi=64
endif
ifeq ($(ARCH),i386)
CPU_TYPE ?= i486
CPU_CFLAGS_i486 = -march=i486
endif
ifneq ($(findstring arm,$(ARCH)),)
CPU_TYPE ?= xscale
CPU_CFLAGS_xscale = march=armv5te -mtune=xscale
endif
ifeq ($(ARCH),sparc)
CPU_TYPE = sparc
CPU_CFLAGS_ultrasparc = -mcpu=ultrasparc
endif
DEFAULT_CFLAGS=$(CPU_CFLAGS) $(CPU_CFLAGS_$(CPU_TYPE))
endif
define BuildTargets/DumpCurrent