conf/machine/include: Add tuning .inc files from OE.dev

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@4615 311d38ba-8fff-0310-9ca6-ca027cbcb966

diff --git a/meta/conf/machine/include/tune-armv7.inc b/meta/conf/machine/include/tune-armv7.inc
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+++ b/meta/conf/machine/include/tune-armv7.inc
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+# valid options for -march: `armv7', `armv7-a', `armv7-r', `armv7-m'
+# valid option for -mtune: `cortex-a8', `cortex-r4', `cortex-m3', `cortex-m1'
+# This will NOT compile programs in 'ARM' mode, which is what you really want
+TARGET_CC_ARCH = "-march=armv7 -mfpu=vfp -mfloat-abi=softfp"
+FEED_ARCH = "armv7"
+PACKAGE_ARCH = "armv7"

diff --git a/meta/conf/machine/include/tune-cortexa8.inc b/meta/conf/machine/include/tune-cortexa8.inc
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+# Instead of using -mfpu=vfp[2] we can use -mfpu=neon to make use of gcc intrinsics[1] and vectorize loops with -ftree-vectorize[3]
+# [1] http://gcc.gnu.org/onlinedocs/gcc/ARM-NEON-Intrinsics.html
+# [2] http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html 
+# [3] https://support.codesourcery.com/GNUToolchain/kbentry29
+
+TARGET_CC_ARCH = "-march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -mfloat-abi=softfp"
+FEED_ARCH = "armv7a"
+PACKAGE_ARCH = "armv7a"

diff --git a/meta/conf/machine/include/tune-cortexm1.inc b/meta/conf/machine/include/tune-cortexm1.inc
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+TARGET_CC_ARCH = "-march=armv7 -mtune=cortex-m1 -mfpu=vfp -mfloat-abi=softfp"
+FEED_ARCH = "armv6"
+PACKAGE_ARCH = "armv6"

diff --git a/meta/conf/machine/include/tune-cortexm3.inc b/meta/conf/machine/include/tune-cortexm3.inc
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+++ b/meta/conf/machine/include/tune-cortexm3.inc
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+# valid options for -march: `armv7', `armv7-m'
+TARGET_CC_ARCH = "-march=armv7-m -mtune=cortex-m3 -mfpu=vfp -mfloat-abi=softfp"
+FEED_ARCH = "armv7"
+PACKAGE_ARCH = "armv7"

diff --git a/meta/conf/machine/include/tune-cortexr4.inc b/meta/conf/machine/include/tune-cortexr4.inc
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+++ b/meta/conf/machine/include/tune-cortexr4.inc
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+# valid options for -march: `armv7', `armv7-r'
+TARGET_CC_ARCH = "-march=armv7-r -mtune=cortex-r4 -mfpu=vfp -mfloat-abi=softfp"
+FEED_ARCH = "armv7"
+PACKAGE_ARCH = "armv7"