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Use "-march=native" when possible.

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Recent versions of GCC have a tuning option value of 'native', which causes
the compiler to optimize the build for the CPU the compile is performed on.
Since most people are building Asterisk on the machine they plan to run it on,
the configure script and build system will now use this value unless a different
value is specified by the user in CFLAGS when the configure script is executed.
In addition, this value will be used for building the GSM and LPC10 codecs as
well, in preference to the logic that has been in their Makefiles forever to
optimize for certain types of CPUs.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@310332 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2011-03-11 15:09:23 +00:00
parent c7c0664bc4
commit 7cf70df999
6 changed files with 492 additions and 532 deletions
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43
codecs/gsm/Makefile
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@@ -45,28 +45,33 @@ ifeq ($(shell $(CC) -v 2>&1 | awk '/^gcc version/ { split($$3, v, "."); printf "
OPTIMIZE=-O2
endif
ifeq (,$(findstring $(shell uname -s),Darwin SunOS))
ifeq (,$(strip $(findstring $(PROC) ,"x86_64 amd64 ultrasparc sparc64 arm armv5b armeb ppc powerpc ppc64 ia64 s390 bfin mipsel mips ")))
ifeq (,$(strip $(findstring $(shell uname -m) ,"ppc ppc64 alpha armv4l s390 ")))
OPTIMIZE+=-march=$(PROC)
# If the compiler's '-march' flag has been specified already, then assume it's a value
# that is what the user wants (or has been determined by the configure script). If not,
# do some simple logic to set a decent value
ifeq ($(findstring -march,$(_ASTCFLAGS) $(ASTCFLAGS)),)
ifeq (,$(findstring $(shell uname -s),Darwin SunOS))
ifeq (,$(strip $(findstring $(PROC) ,"x86_64 amd64 ultrasparc sparc64 arm armv5b armeb ppc powerpc ppc64 ia64 s390 bfin mipsel mips ")))
ifeq (,$(strip $(findstring $(shell uname -m) ,"ppc ppc64 alpha armv4l s390 ")))
OPTIMIZE+=-march=$(PROC)
endif
endif
else
ifneq (,$(findstring $(OSARCH),Darwin))
ifeq ($(shell /usr/bin/sw_vers -productVersion | cut -c1-4),10.6)
# Snow Leopard reports i386, even though it's really x86_64
OPTIMIZE+=-mtune=native
endif
endif
endif
else
ifneq (,$(findstring $(OSARCH),Darwin))
ifeq ($(shell /usr/bin/sw_vers -productVersion | cut -c1-4),10.6)
# Snow Leopard reports i386, even though it's really x86_64
OPTIMIZE+=-mtune=native
endif
endif
endif
#The problem with sparc is the best stuff is in newer versions of gcc (post 3.0) only.
#This works for even old (2.96) versions of gcc and provides a small boost either way.
#A ultrasparc cpu is really v9 but the stock debian stable 3.0 gcc doesn't support it.
#So we go lowest common available by gcc and go a step down, still a step up from
#the default as we now have a better instruction set to work with. - Belgarath
ifeq ($(PROC),ultrasparc)
OPTIMIZE+=-mcpu=v8 -mtune=$(PROC) -O3
#The problem with sparc is the best stuff is in newer versions of gcc (post 3.0) only.
#This works for even old (2.96) versions of gcc and provides a small boost either way.
#A ultrasparc cpu is really v9 but the stock debian stable 3.0 gcc doesn't support it.
#So we go lowest common available by gcc and go a step down, still a step up from
#the default as we now have a better instruction set to work with. - Belgarath
ifeq ($(PROC),ultrasparc)
OPTIMIZE+=-mcpu=v8 -mtune=$(PROC) -O3
endif
endif
PG =