1*4882a593Smuzhiyun# 2*4882a593Smuzhiyun# The i686 CPU family was introduced with the Intel Pentium Pro in 1995. 3*4882a593Smuzhiyun# It has as required feature flags: fpu tsc cx8 cmov. 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun# It is the minimum CPU required by the Debian i386 port. 6*4882a593Smuzhiyun# https://lists.debian.org/debian-devel-announce/2016/05/msg00001.html 7*4882a593Smuzhiyun# 8*4882a593Smuzhiyun# 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunDEFAULTTUNE ?= "i686" 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun# Set x86 target arch to i686, so that glibc enables SSE optimised memcpy, etc. 13*4882a593SmuzhiyunX86ARCH32 ?= "i686" 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun# Include the previous tune to pull in PACKAGE_EXTRA_ARCHS 16*4882a593Smuzhiyunrequire conf/machine/include/x86/tune-i586.inc 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun# Extra tune features 19*4882a593SmuzhiyunTUNEVALID[i686] = "Enable i686 specific processor optimizations" 20*4882a593SmuzhiyunTUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'i686', ' -march=i686', '', d)}" 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun# Extra tune selections 23*4882a593SmuzhiyunAVAILTUNES += "i686" 24*4882a593SmuzhiyunTUNE_FEATURES:tune-i686 = "${TUNE_FEATURES:tune-x86} i686" 25*4882a593SmuzhiyunBASE_LIB:tune-i686 = "lib" 26*4882a593SmuzhiyunTUNE_PKGARCH:tune-i686 = "i686" 27*4882a593SmuzhiyunPACKAGE_EXTRA_ARCHS:tune-i686 = "${PACKAGE_EXTRA_ARCHS:tune-i586} i686" 28