Projekty/Wsparcie > POLAUR
Linux-gc
pavbaranov:
Linux-gc to prowadzona przez Alfreda Chena linia linuksowego kernela. Zawiera w sobie szereg patchy, jak np. BFQ, BFS czy patch graysky'ego rozszerzający możliwości dostosowania kompilatora do architektury procesora. Co ważne, niektóre z nich - jak np. BFS - Alfred rozwija sam, niezależnie od Cona. Niektóre z jego pomysłów później lądują w wersji BFS rozpowszechnianej przez Cona.
Obecnie - z uwagi na nawał pracy Cona i tymczasowe zaprzestanie rozwijania przez niego BFS - linux-gc jest niemal jedynym rozwiązaniem umożliwiającym skompilowanie kernela linii 4.1 z patchem BFS.
Poniżej przedstawiam opis instalacji tego kernela (obecna wersja jest jeszcze odpowiednikiem 4.1.2, chociaż mamy już 4.1.3; znając Alfreda niebawem pojawi się w jego repozytorium wersja uwzględniająca patch 4.1.3, wówczas powiadomię).
Rozpoczynamy od ściągnięcia jakiegoś kernela, który dostarczy nam fajne configi np. linux-bfq. Uwaga: config musi być dla kernela 4.1. Paczkę pobieramy stąd: https://aur4.archlinux.org/cgit/aur.git/snapshot/linux-bfq.tar.gz i rozpakowujemy:
--- Kod: ---tar -zxfv linux-bfq.tar.gz
--- Koniec kodu ---
bądź korzystamy z programu packer (w moim przykładzie packer-color):
--- Kod: ---packer-color -G linux-bfq
--- Koniec kodu ---
Przechodzimy do katalogu ze źródłami:
--- Kod: ---cd linux-bfq
--- Koniec kodu ---
Usuwamy niemal wszystko z wyjątkiem plików config i config.x86_64.
Do katalogu kopiujemy poniższy kod PKGBUILDa i tak go też nazywamy:
--- Kod: ---# Maintainer: pavbaranov
# Contributor: Piotr Gorski <lucjan.lucjanov@gmail.com>
# Contributor: Tobias Powalowski <tpowa@archlinux.org>
# Contributor: Thomas Baechler <thomas@archlinux.org>
### BUILD OPTIONS
# Set these variables to ANYTHING that is not null to enable them
# Tweak kernel options prior to a build via nconfig
_makenconfig=
# Tweak kernel options prior to a build via menuconfig
_makemenuconfig=
# Tweak kernel options prior to a build via xconfig
_makexconfig=
# Tweak kernel options prior to a build via gconfig
_makegconfig=
# NUMA is optimized for multi-socket motherboards.
# A single multi-core CPU actually runs slower with NUMA enabled.
# See, https://bugs.archlinux.org/task/31187
_NUMAdisable=y
# Compile ONLY probed modules
# As of mainline 2.6.32, running with this option will only build the modules
# that you currently have probed in your system VASTLY reducing the number of
# modules built and the build time to do it.
#
# WARNING - ALL modules must be probed BEFORE you begin making the pkg!
#
# To keep track of which modules are needed for your specific system/hardware,
# give module_db script a try: https://aur.archlinux.org/packages/modprobed-db
# This PKGBUILD will call it directly to probe all the modules you have logged!
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed_db
_localmodcfg=
# Use the current kernel's .config file
# Enabling this option will use the .config of the RUNNING kernel rather than
# the ARCH defaults. Useful when the package gets updated and you already went
# through the trouble of customizing your config options. NOT recommended when
# a new kernel is released, but again, convenient for package bumps.
_use_current=
### Do not edit below this line unless you know what you're doing
pkgbase=linux-gc
pkgname=('linux-gc' 'linux-gc-headers' 'linux-gc-docs')
_kernelname=-gc
_srcname=linux-gc-linux-4.1.y-gc
pkgver=4.1.y
pkgrel=1
pkgdesc="Alfred Chen's linux kernel line (incl. BFQ, BFS and more)"
arch=('i686' 'x86_64')
url="http://cchalpha.blogspot.com/"
license=('GPL2')
options=('!strip')
makedepends=('kmod' 'inetutils' 'bc')
source=("https://codeload.github.com/cchalpha/linux-gc/zip/linux-4.1.y-gc"
'linux-gc.preset'
'change-default-console-loglevel.patch'
'config' 'config.x86_64'
)
prepare() {
cd ${_srcname}
### set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
# remove this when a Kconfig knob is made available by upstream
# (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
msg "Patching set DEFAULT_CONSOLE_LOGLEVEL to 4"
patch -p1 -i "${srcdir}/change-default-console-loglevel.patch"
### Clean tree and copy ARCH config over
msg "Running make mrproper to clean source tree"
make mrproper
if [ "${CARCH}" = "x86_64" ]; then
cat "${srcdir}/config.x86_64" > ./.config
else
cat "${srcdir}/config" > ./.config
fi
### Optionally use running kernel's config
# code originally by nous; http://aur.archlinux.org/packages.php?ID=40191
if [ -n "$_use_current" ]; then
if [[ -s /proc/config.gz ]]; then
msg "Extracting config from /proc/config.gz..."
# modprobe configs
zcat /proc/config.gz > ./.config
else
warning "You kernel was not compiled with IKCONFIG_PROC!"
warning "You cannot read the current config!"
warning "Aborting!"
exit
fi
fi
if [ "${_kernelname}" != "" ]; then
sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
sed -i "s|CONFIG_LOCALVERSION_AUTO=.*|CONFIG_LOCALVERSION_AUTO=n|" ./.config
fi
### Optionally disable NUMA since >99% of users have mono-socket systems.
# For more, see: https://bugs.archlinux.org/task/31187
if [ -n "$_NUMAdisable" ]; then
if [ "${CARCH}" = "x86_64" ]; then
msg "Disabling NUMA from kernel config..."
sed -i -e 's/CONFIG_NUMA=y/# CONFIG_NUMA is not set/' \
-i -e '/CONFIG_AMD_NUMA=y/d' \
-i -e '/CONFIG_X86_64_ACPI_NUMA=y/d' \
-i -e '/CONFIG_NODES_SPAN_OTHER_NODES=y/d' \
-i -e '/# CONFIG_NUMA_EMU is not set/d' \
-i -e '/CONFIG_NODES_SHIFT=6/d' \
-i -e '/CONFIG_NEED_MULTIPLE_NODES=y/d' \
-i -e '/# CONFIG_MOVABLE_NODE is not set/d' \
-i -e '/CONFIG_USE_PERCPU_NUMA_NODE_ID=y/d' \
-i -e '/CONFIG_ACPI_NUMA=y/d' ./.config
fi
fi
# set extraversion to pkgrel
sed -ri "s|^(EXTRAVERSION =).*|\1 -${pkgrel}|" Makefile
# don't run depmod on 'make install'. We'll do this ourselves in packaging
sed -i '2iexit 0' scripts/depmod.sh
# get kernel version
msg "Running make prepare for you to enable patched options of your choosing"
make prepare
### Optionally load needed modules for the make localmodconfig
# See https://aur.archlinux.org/packages/modprobed-db
if [ -n "$_localmodcfg" ]; then
msg "If you have modprobe-db installed, running it in recall mode now"
if [ -e /usr/bin/modprobed-db ]; then
[[ ! -x /usr/bin/sudo ]] && echo "Cannot call modprobe with sudo. Install via pacman -S sudo and configure to work with this user." && exit 1
sudo /usr/bin/modprobed-db recall
fi
msg "Running Steven Rostedt's make localmodconfig now"
make localmodconfig
fi
if [ -n "$_makenconfig" ]; then
msg "Running make nconfig"
make nconfig
fi
if [ -n "$_makemenuconfig" ]; then
msg "Running make menuconfig"
make menuconfig
fi
if [ -n "$_makexconfig" ]; then
msg "Running make xconfig"
make xconfig
fi
if [ -n "$_makegconfig" ]; then
msg "Running make gconfig"
make gconfig
fi
# rewrite configuration
yes "" | make config >/dev/null
# save configuration for later reuse
if [ "${CARCH}" = "x86_64" ]; then
cat .config > "${startdir}/config.x86_64.last"
else
cat .config > "${startdir}/config.last"
fi
}
build() {
cd ${_srcname}
msg "Running make bzImage and modules"
make ${MAKEFLAGS} LOCALVERSION= bzImage modules
}
package_linux-gc() {
pkgdesc='Linux Kernel and modules with the BFQ scheduler.'
depends=('coreutils' 'linux-firmware' 'mkinitcpio>=0.7')
optdepends=('crda: to set the correct wireless channels of your country' 'nvidia-gc: nVidia drivers for linux-gc' 'modprobed-db: Keeps track of EVERY kernel module that has ever been probed - useful for those of us who make localmodconfig')
backup=("etc/mkinitcpio.d/linux-gc.preset")
install=linux-gc.install
cd ${_srcname}
KARCH=x86
# get kernel version
_kernver="$(make LOCALVERSION= kernelrelease)"
_basekernel=${_kernver%%-*}
_basekernel=${_basekernel%.*}
mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot}
make LOCALVERSION= INSTALL_MOD_PATH="${pkgdir}" modules_install
cp arch/$KARCH/boot/bzImage "${pkgdir}/boot/vmlinuz-linux-gc"
# set correct depmod command for install
cp -f "${startdir}/${install}" "${startdir}/${install}.pkg"
true && install=${install}.pkg
sed \
-e "s/KERNEL_NAME=.*/KERNEL_NAME=-gc/g" \
-e "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
-i "${startdir}/${install}"
# install mkinitcpio preset file for kernel
install -D -m644 "${srcdir}/linux-gc.preset" "${pkgdir}/etc/mkinitcpio.d/linux-gc.preset"
sed \
-e "1s|'linux.*'|'linux-gc'|" \
-e "s|ALL_kver=.*|ALL_kver=\"/boot/vmlinuz-linux-gc\"|" \
-e "s|default_image=.*|default_image=\"/boot/initramfs-linux-gc.img\"|" \
-e "s|fallback_image=.*|fallback_image=\"/boot/initramfs-linux-gc-fallback.img\"|" \
-i "${pkgdir}/etc/mkinitcpio.d/linux-gc.preset"
# remove build and source links
rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
# remove the firmware
rm -rf "${pkgdir}/lib/firmware"
# make room for external modules
ln -s "../extramodules-${_basekernel}${_kernelname:gc}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
# add real version for building modules and running depmod from post_install/upgrade
mkdir -p "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:gc}"
echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:gc}/version"
# Now we call depmod...
depmod -b "${pkgdir}" -F System.map "${_kernver}"
# move module tree /lib -> /usr/lib
mkdir -p "${pkgdir}/usr"
mv "${pkgdir}/lib" "${pkgdir}/usr/"
# add vmlinux
install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
}
package_linux-gc-headers() {
pkgdesc='Header files and scripts to build modules for linux-gc.'
depends=('linux-gc')
install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"
cd ${_srcname}
KARCH=x86
# get kernel version
_kernver="$(make LOCALVERSION= kernelrelease)"
_basekernel=${_kernver%%-*}
_basekernel=${_basekernel%.*}
install -D -m644 Makefile \
"${pkgdir}/usr/lib/modules/${_kernver}/build/Makefile"
install -D -m644 kernel/Makefile \
"${pkgdir}/usr/lib/modules/${_kernver}/build/kernel/Makefile"
install -D -m644 .config \
"${pkgdir}/usr/lib/modules/${_kernver}/build/.config"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include"
for i in acpi asm-generic config crypto drm generated keys linux math-emu \
media net pcmcia scsi sound trace uapi video xen; do
cp -a include/${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/include/"
done
# copy arch includes for external modules
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/x86"
cp -a arch/x86/include "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/x86/"
# copy files necessary for later builds, like nvidia and vmware
cp Module.symvers "${pkgdir}/usr/lib/modules/${_kernver}/build"
cp -a scripts "${pkgdir}/usr/lib/modules/${_kernver}/build"
# fix permissions on scripts dir
chmod og-w -R "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/.tmp_versions"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel"
cp arch/${KARCH}/Makefile "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"
if [ "${CARCH}" = "i686" ]; then
cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"
fi
cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel/"
# add docbook makefile
install -D -m644 Documentation/DocBook/Makefile \
"${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"
# add dm headers
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
cp drivers/md/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
# add inotify.h
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux"
cp include/linux/inotify.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux/"
# add wireless headers
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
cp net/mac80211/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
# add dvb headers for external modules
# in reference to:
# http://bugs.archlinux.org/task/9912
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core"
cp drivers/media/dvb-core/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core/"
# and...
# http://bugs.archlinux.org/task/11194
###
### DO NOT MERGE OUT THIS IF STATEMENT
### IT AFFECTS USERS WHO STRIP OUT THE DVB STUFF SO THE OFFICIAL ARCH CODE HAS A CP
### LINE THAT CAUSES MAKEPKG TO END IN AN ERROR
###
if [ -d include/config/dvb/ ]; then
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
cp include/config/dvb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
fi
# add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
# in reference to:
# http://bugs.archlinux.org/task/13146
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
cp drivers/media/dvb-frontends/lgdt330x.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
cp drivers/media/i2c/msp3400-driver.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
# add dvb headers
# in reference to:
# http://bugs.archlinux.org/task/20402
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb"
cp drivers/media/usb/dvb-usb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb/"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends"
cp drivers/media/dvb-frontends/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners"
cp drivers/media/tuners/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners/"
# add xfs and shmem for aufs building
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs"
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/mm"
# removed in 3.17 series
#cp fs/xfs/xfs_sb.h "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs/xfs_sb.h"
# copy in Kconfig files
for i in $(find . -name "Kconfig*"); do
mkdir -p "${pkgdir}"/usr/lib/modules/${_kernver}/build/`echo ${i} | sed 's|/Kconfig.*||'`
cp ${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/${i}"
done
chown -R root.root "${pkgdir}/usr/lib/modules/${_kernver}/build"
find "${pkgdir}/usr/lib/modules/${_kernver}/build" -type d -exec chmod 755 {} \;
# strip scripts directory
find "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
case "$(file -bi "${binary}")" in
*application/x-sharedlib*) # Libraries (.so)
/usr/bin/strip ${STRIP_SHARED} "${binary}";;
*application/x-archive*) # Libraries (.a)
/usr/bin/strip ${STRIP_STATIC} "${binary}";;
*application/x-executable*) # Binaries
/usr/bin/strip ${STRIP_BINARIES} "${binary}";;
esac
done
# remove unneeded architectures
rm -rf "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch/{alpha,arm,arm26,arm64,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,xtensa}
}
package_linux-gc-docs() {
pkgdesc="Kernel hackers manual - HTML documentation that comes with the linux-gc kernel"
depends=('linux-gc')
cd ${_srcname}
KARCH=x86
# get kernel version
_kernver="$(make LOCALVERSION= kernelrelease)"
_basekernel=${_kernver%%-*}
_basekernel=${_basekernel%.*}
mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build"
cp -al Documentation "${pkgdir}/usr/lib/modules/${_kernver}/build"
find "${pkgdir}" -type f -exec chmod 444 {} \;
find "${pkgdir}" -type d -exec chmod 755 {} \;
# remove a file already in linux package
rm -f "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"
}
sha512sums=('1b20f82cd191f52a84bc68ac16fee7741c95d115519731a5a2ca31ce0b75ef7478a76ee13cab7b1f7e6efa386fe33cfb0254b19d145d0edfda2394270d7a0327'
'fadc871208943c485c96e19cf2d8565d7e71adc155dbc0eafbe06472f6a21f034ad4b39e0c5dc18caad897e9aa57b142b7169482ab9973686b2234344e0c9933'
'd9d28e02e964704ea96645a5107f8b65cae5f4fb4f537e224e5e3d087fd296cb770c29ac76e0ce95d173bc420ea87fb8f187d616672a60a0cae618b0ef15b8c8'
'f4f57eabc29a8fe93a3afe89a2efdfd480674cf3bd7f09dd9dbbce022bb883862abe17b0eb378b8d16a5b2882c2323147539a06ae1025956b73b2794c894b983'
'e7b40538ed5b86cd59209a056cf9c96dd8f23828dc96cdc282b0388e4132907446f24d606d11cace62c9a53c81df1439150ef0c9a960bf85b5495e656aa59f2c')
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
)
--- Koniec kodu ---
Kopiujemy plik linux-gc.install do tego samego katalogu i nazywamy go w ten sposób.
--- Kod: ---KERNEL_NAME=-gc
KERNEL_VERSION=
post_install () {
# updating module dependencies
echo ">>> Updating module dependencies. Please wait ..."
depmod ${KERNEL_VERSION}
echo ">>> Generating initial ramdisk, using mkinitcpio. Please wait..."
mkinitcpio -p linux${KERNEL_NAME}
}
post_upgrade() {
if findmnt --fstab -uno SOURCE /boot &>/dev/null && ! mountpoint -q /boot; then
echo "WARNING: /boot appears to be a separate partition but is not mounted."
fi
# updating module dependencies
echo ">>> Updating module dependencies. Please wait ..."
depmod ${KERNEL_VERSION}
echo ">>> Generating initial ramdisk, using mkinitcpio. Please wait..."
mkinitcpio -p linux${KERNEL_NAME}
}
post_remove() {
# also remove the compat symlinks
rm -f boot/initramfs-linux${KERNEL_NAME}.img
rm -f boot/initramfs-linux${KERNEL_NAME}-fallback.img
}
--- Koniec kodu ---
Kopiujemy kod linux-gc.preset do tego samego katalogu i nazywamy go w ten sposób.
--- Kod: ---# mkinitcpio preset file for the 'linux-gc' package
ALL_config="/etc/mkinitcpio.conf"
ALL_kver="/boot/vmlinuz-linux-gc"
PRESETS=('default' 'fallback')
#default_config="/etc/mkinitcpio.conf"
default_image="/boot/initramfs-linux-gc.img"
#default_options=""
#fallback_config="/etc/mkinitcpio.conf"
fallback_image="/boot/initramfs-linux-gc-fallback.img"
fallback_options="-S autodetect"
--- Koniec kodu ---
Przed kompilacją, PKGBUILD możemy dostosować, przy czym pamiętajmy, że jeśli chcemy wykonać kompilację w oparciu o config działającego kernela, to tym kernelem musi być kernel tej samej linii, co kompilowany (tu 4.1).
Miłej zabawy.
PS: Proszę sobie zachować PKGBUILD, bowiem przy nowych wersjach kerneli nie będę dawał całego PKGBUILDa, ale prawdopodobnie wyłącznie polecenia sed, które zmienią PKGBUILD dostosowując go do aktualnej wersji).
PS2: Oczywiście PKGBUILD oraz *.install i *.preset są bezczelnie zerżnięte od Lucka :)
PS3: Poniżej na potwierdzenie wkompilowania BFS w kernel linii 4.1.
--- Kod: ---CONFIG_MPILEDRIVER=y
CONFIG_SCHED_SMT=y
CONFIG_SMT_NICE=y
[ 1.885324] io scheduler bfq registered (default)
[ 1.885325] BFQ I/O-scheduler: v7r8
[ 1.919531] BFS CPU scheduler v0.462 by Con Kolivas.
Linux evo 4.1.2-1-gc #1 SMP PREEMPT Wed Jul 22 10:03:59 CEST 2015 x86_64 GNU/Linux
--- Koniec kodu ---
sir_lucjan:
Z tego, co zauważyłem - wspierany jest patch graysky'ego dla GCC 4.8:
--- Kod: --- 9. Intel Core 2 (MCORE2)
10. Intel Core i7 (MCOREI7) (NEW)
11. Intel Core 2nd Gen AVX (MCOREI7AVX) (NEW)
12. Intel Core 3rd Gen AVX (MCOREAVXI) (NEW)
13. Intel Core AVX-2 (MCOREAVX2) (NEW)
> 14. Generic-x86-64 (GENERIC_CPU)
--- Koniec kodu ---
Dla posiadaczy Inteli nie wróży to dobrze.
pavbaranov:
Fakt, patch graysky'ego nie jest tak rozbudowany jak dla gcc >=4.9. Dla procesorów AMD większego problemu nie ma. Dla Intela - cóż,... po prostu nie wiem. Chen jest chyba użytkownikiem Gentoo, a tam jeszcze jest stary GCC. Przynajmniej w "stabilnych" wersjach. Raczej nie chce mi się podmieniać, bowiem musiałbym zbudować po prostu nowe źródła. Nowego patcha graysky'ego nałożyć na linux-gc niestety się nie da.
sir_lucjan:
Jedyne wyjście, to przygotować patch który by to naprawiał.
pavbaranov:
Jak na razie, proponowane rozwiązanie:
- dla AMD - wybór jest bez zmian,
- dla Intel - chyba najrozsądniejsze rozwiązanie to wybór "generic" (nie pamiętam, czy Chen dał opcję "native" /z kodu tak wynika/ - jeśli tak, to ten wybór byłby najlepszy).
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