Difference between pages "Portage Profile Logic" and "Amd64-jaguar"

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== Gentoo Initialization ==
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{{Subarch
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|CPU Family=64-Bit AMD Processors
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|subarch=amd64-jaguar
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|CHOST=x86_64-pc-linux-gnu
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|CFLAGS=-march=btver2 -O2 -pipe
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|USE=mmx sse sse2 sse3 sse4 3dnow 3dnowext
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|CPU Features=low-power
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|Description=
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}}
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The '''amd64-jaguar''' (also called AMD Family 16h) subarch supports the  [[Wikipedia:Jaguar (microarchitecture)|AMD jaguar microarchitecture]], which is targeted at low-power devices, including notebooks, tablets and small form-factor desktops and servers. It is perhaps most well-known for being the microarchitecture used for the [[Wikipedia:Playstation 4|Playstation 4]] and [[Wikipedia:Xbox One|Xbox One]], which each use custom 8-core Jaguar APUs.
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Socketed Jaguar APUs use the [[Wikipedia:AM1 Socket|AM1 socket]], and  [[Wikipedia:Socket_FT3|FT3 socket]] for mobile devices. G-series [[Wikipedia:System_on_a_chip|"system on a chip" (SoC)]] APUs are available for non-socketed devices such as tablets and embedded system boards.
  
Gentoo profile initialization has been documented in [https://github.com/funtoo/portage-funtoo/commit/4c6826a0029c3c8f0aa92e70b4e50f2ffc58c7fa#diff-0 this GitHub commit], and describes how Gentoo's Portage finds and processes profiles. Funtoo Linux will be making some changes to this algorithm, but first things first -- document the existing functionality. Basically, Gentoo's Portage looks for profiles using this algorithm:
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Desktop Jaguar APUs include the [[Wikipedia:List_of_AMD_accelerated_processing_unit_microprocessors#.22Kabini.22.2C_.22Temash.22_.282013.2C_28_nm.29|Kabini A-series APUs and Temash E-series APUs]], such as the Athlon 5150 and 5350 APUs, and Sempron 2650 and 3850.
  
# Does <tt>/etc/make.profile</tt> exist? If so, it defines the primary profile.
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Amd64-jaguar subarches use the MOVBE instruction which is not available on amd64-bulldozer, amd64-piledriver or amd64-steamroller. They are thus not instruction-compatible with any of these subarches.
# If not, does <tt>/etc/portage/make.profile</tt> exist? If so, it defines the primary profile.
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# Recursively process the <tt>parent</tt> file found in the primary profile to build a list of all cascading profiles
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# if <tt>/etc/portage/profile</tt> exists, it is a user-defined profile - tack it to the end of our profile list so it can modify anything in the cascading profiles.
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Here is a more detailed description of the steps:
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# Look for a profile directory/symlink at <tt>/etc/make.profile</tt>, if one exists, use this as the main profile directory.
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# If <tt>/etc/make.profile</tt> doesn't exist, use <tt>/etc/portage/make.profile</tt> as a back-up location if it exists.
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# If neither location exists, then a main profile directory doesn't exist and is undefined (None)
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Using the main profile directory/symlink found above, the <tt>LocationsManager._addProfile()</tt> recursive function will be called that will create a list of all cascading profiles. This works by looking for a <tt>parent</tt> file in the profile directory. If this file exists, then each line is treated as a ''relative path'' and used to modify the path to the current profile, pointing to a "parent" profile that this particular profile modifies. There can be more than one parent, one per line. ''The first line in the <tt>parent</tt> file is the highest-priority parent.''
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Once this list is created, the code checks to see if <tt>/etc/portage/profile</tt> directory exists. If it does, it is tacked at the end of the cascading profile list, meaning that it is evaluated last and this user-defined profile has the ability to modify any of the cascading profile settings. It provides an ideal hook point for a user-defined profile that can tweak anything the user wants to modify in the profile.
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[[Category:Portage]]
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Revision as of 07:03, December 20, 2014

This page lists CPU-optimized builds of Funtoo Linux for amd64-jaguar 64-Bit AMD Processors.


CPU Information

CHOSTx86_64-pc-linux-gnu
CFLAGS-march=btver2 -O2 -pipe
CPU_FLAGS (see CPU_FLAGS for more info)aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3

Download

This section lists the Funtoo Linux builds currently available for download for amd64-jaguar. A full list of Funtoo Linux builds can be found on the Subarches page.

BuildVariantLatest BuildDownloadBrowse Mirror
funtoo-current standard 2015-06-30
funtoo-current pure64 2015-07-01
funtoo-current hardened 2015-07-01
funtoo-current pure64+hardened 2015-07-01
Important

Do you want a particular build of Funtoo Linux but do not see it here? Let us know what you need, and we will likely add it for you. Create a bug report requesting the build you need. To see what options there are, see our Intel Core i7 subarch page, which has a lot of builds listed.

Detailed Description

The amd64-jaguar (also called AMD Family 16h) subarch supports the AMD jaguar microarchitecture, which is targeted at low-power devices, including notebooks, tablets and small form-factor desktops and servers. It is perhaps most well-known for being the microarchitecture used for the Playstation 4 and Xbox One, which each use custom 8-core Jaguar APUs. Socketed Jaguar APUs use the AM1 socket, and FT3 socket for mobile devices. G-series "system on a chip" (SoC) APUs are available for non-socketed devices such as tablets and embedded system boards.

Desktop Jaguar APUs include the Kabini A-series APUs and Temash E-series APUs, such as the Athlon 5150 and 5350 APUs, and Sempron 2650 and 3850.

Amd64-jaguar subarches use the MOVBE instruction which is not available on amd64-bulldozer, amd64-piledriver or amd64-steamroller. They are thus not instruction-compatible with any of these subarches.