reinit the tree, so we can have metadata

9 files changed, 1188 insertions, 0 deletions

diff --git a/dev-util/perf/Manifest b/dev-util/perf/Manifest
new file mode 100644
index 000000000000..3a63297e4bba
--- /dev/null
+++ b/dev-util/perf/Manifest
@@ -0,0 +1,21 @@
+AUX perf-4.1.5-prefix.patch 1637 SHA256 dac4671e909a0af78345f6253e4c7ca04f0d3d400c76eecaf0149ad51639b241 SHA512 ff7179d7b06513a83f0909723ad47774c07ad089079f43750c24a1dca685745048bce5ea6b0766e65e48b75b50d5a26866e827a89b0206800769ea2779355d6b WHIRLPOOL b9015891fcb48d113b8015a54a7dae290b041ab1cb607c7ea196fc6aeec74c6b14d221c3197efa2ff2040249498082a5fb9588c51428489a1fc9d349b5e799d1
+DIST linux-3.12.tar.bz2 91111381 SHA256 43129defd9079c99cf5e57506d36b6b01614c734a5ed9e604d3a7c1510ab8b22 SHA512 bea14d044c8a0257d8312f45db6a39ca4f9dffe8ac32a11198e90762ee1735c8b6975bb81c635a4755d451793fa7c7e5b2d7d692c9e57133b15b4cdc941febf1 WHIRLPOOL 1889c3f689cf305856112f350e3901175b9f6c4f1e4143d62b40e502000685ade3e75b211a8a9fd948f6225e1c57a68cae10ceb649ff7976981089290d562926
+DIST linux-3.13.tar.xz 77187032 SHA256 4d5e5eee5f276424c32e9591f1b6c971baedc7b49f28ce03d1f48b1e5d6226a2 SHA512 1ba223bb4b885d691a67196d86a8aaf7b4a1c351bf2a762f50f1b0c32da00dd0c28895872a66b49e8d244498d996876609268e64861d28ac4048886ef9f79b87 WHIRLPOOL 2992257a17e85b3eb16fcaf21678fa6dbf31f80c2099fd1ad0ff9852ac1d16122ac8e2c0b46421d8895d4368253a724e439cd625307ee7af7bd1e50cb2c9b62a
+DIST linux-3.15.tar.xz 79676484 SHA256 c3927e87be4040fa8aca1b58663dc0776aaf00485604ff88a623be2f3fb07794 SHA512 d5dc477cad4584e56e2e2ef9e0950c2b22e76e5cf5090a896ba099cb7c5e5db1853a4aeb96b199189653dc66d461557e95198e37516a619f7ddc01ba6b308e02 WHIRLPOOL 7f3dfde1a23aab75b7f40770ae2ca77c1b28f845e4abe6296b2aec9b56fe94f7afa76b00eb6cc7475305c31b726ebeb4643107dd48c12ac04c933cf1856b8e77
+DIST linux-4.1.tar.xz 83017828 SHA256 caf51f085aac1e1cea4d00dbbf3093ead07b551fc07b31b2a989c05f8ea72d9f SHA512 168ef84a4e67619f9f53f3574e438542a5747f9b43443363cb83597fcdac9f40d201625c66e375a23226745eaada9176eb006ca023613cec089349e91751f3c0 WHIRLPOOL 85fcfdb67ea7f865272a85d3b4c3ec1f5a1267f4664bf073c562bb3875e9d96ad68486259d8866a9aced98c95de16840ec531d89745aec75b7315a64ebe650b8
+DIST linux-4.4.tar.xz 87295988 SHA256 401d7c8fef594999a460d10c72c5a94e9c2e1022f16795ec51746b0d165418b2 SHA512 13c8459933a8b80608e226a1398e3d1848352ace84bcfb7e6a4a33cb230bbe1ab719d4b58e067283df91ce5311be6d2d595fc8c19e2ae6ecc652499415614b3e WHIRLPOOL 02abc203d867404b9934aaa4c1e5b5dcbb0b0021e91a03f3a7e7fd224eed106821d8b4949f32a590536db150e5a88c16fcde88538777a26d0c17900f0257b1bc
+DIST linux-4.9.tar.xz 93192404 SHA256 029098dcffab74875e086ae970e3828456838da6e0ba22ce3f64ef764f3d7f1a SHA512 bf67ff812cc3cb7e5059e82cc5db0d9a7c5637f7ed9a42e4730c715bf7047c81ed3a571225f92a33ef0b6d65f35595bc32d773356646df2627da55e9bc7f1f1a WHIRLPOOL 072505b29972ad120eb25a074217847c9c2813416c4903e605a0433574f5f87616dbea0b1454e4b19acc48107f11274b682958b1d773373156e99f8163e6606a
+DIST patch-3.13.1.xz 2884 SHA256 74a093b2cacddac0a105e0989b7bf0e9829b9923e2d71ca10382e90324a17e74 SHA512 164235a15e6a984e9aeaf9fe475a8b2975d5e4c4b28dd4ecf99064b0f0c72eea766d925340f1a7232cabcbd23d26773527c300b6d995bf5cde18a276208fdccc WHIRLPOOL 0ea0118960970b7d6465445252e7a21a6aeb494c0afefec5f52a68c0b7e0d63fd2ed59a3877fbe9ebd282ac03812235b021534866efa8f46d549b6f70228e4b6
+DIST patch-3.15.5.xz 122232 SHA256 9b0d000e0bdec7a25ee6303afdab8d2af77439995876eadd6ce248e5c954037d SHA512 6831200503334e839c3cccdad29058aecc0205171cc5b75205d0a2aada8636633889ebff35d9677d4567bbaeea249efc83571e016104cd67554fe72b3b405755 WHIRLPOOL 56e1e817c08b4557e18b34d148d8ffd0f73bf8dec92f2339ca9413ca2143b65ec35f6d48c87e37f140226e57d7df33f06d6c53a48dafa7ddf090a839fdabe024
+DIST patch-4.1.5.xz 170056 SHA256 b495cf8a7b978986dd2b757b687751c62f635d15cc2228edb80934bc0d449dcc SHA512 1325cdb35ea1f277d513932af37804f788b96ae63b94cedeb3c9b916ee8963bbd6aca5d0e13279e36a81f1de06005c5f3666ecfc845609932686f261fa4250c5 WHIRLPOOL 291ddfcde395c3d201a8172f7281ac560167a8bce78d3196b47e4c7be759545282cc1104fc7b2edc95d90250a834cc23103199275bc8c6974bd4229dd530d1a3
+DIST patch-4.4.4.xz 200972 SHA256 9061d8f57cc25d760387c4e6b7d5cceacaa808e8784a3e478012e7c2949853c8 SHA512 c206af7803cb0915fbe2bd27ed33282452db3fbd3070c73e4c7147443efd3c7588fb3be12d0abc08742381fbe892190602b29147684630aa9e6ff5e9efa49dbc WHIRLPOOL e6a004e32eecca1507354f97d3de85a07c1b9512fe3d4d87173e6d39c02ef1c2411abd0c26b6a077cd5eaefde11dd201445f72b9a0cf185e76635bdcc36df8dd
+DIST patch-4.9.13.xz 295932 SHA256 87a0f07dd393e2d08850f0536417d091684535ff0c8ab8f8d9aeab1db38589bf SHA512 d7956cc8a4ab11514789af4f1f7023268e4b003216766c153f0f09aac659aabda5de634b363d53f8daeddfcf5820619c5bca31ff5f9aeb187c1df016c05f68d5 WHIRLPOOL 154747030245f5c1e9f6d9717c32584e3901372fdfe7945497b294c7454f2da4ae4959cf9f1bdd091dca70d346125023a0b5d0c75cc3745342eb8bb56c68e023
+EBUILD perf-3.12.ebuild 5006 SHA256 29845b4ca7e89095cea0696583e1b4e88afd9c625d91be8c6d10498eb281cb00 SHA512 c247393496ac96e14ede7eaebb7e00d32221ccd38c2dca2cf50e3b7fe158172f49803c1e697584e25917a6d7d829890952cc7e8ae09a87158180530af66afb56 WHIRLPOOL 3bdc9fbff93750aff6cfc5c1d7bba8b6b0da912294f86d7faee19a3c41a521e50b0c2b517b13e8be71a9f59439fa1a873445cb165d97e07ed73b767d7fcc291c
+EBUILD perf-3.13.1-r1.ebuild 5128 SHA256 bec3bb4ae1c610189a25f040c3ab1967a16174ae87c0dc649599eb830595ae5b SHA512 f7ce04b5f4a4db657dfeb6b59d70c15cfb012ce661a62620773607ee93d5becfea56912dd9fae88db47a9f42ade6ce0ed0d0ba67a3fc37b086eda0e9e87118ab WHIRLPOOL 443379b33507b4f32c8a5d58917406cd0ab96946c39fb2a58f54109b3c0d6978a6afcc03fafd6ab5e7481132b2b7b4b2dbb1bbc95ce21b5a69e33c4a4863180e
+EBUILD perf-3.15.5.ebuild 5143 SHA256 28fc388439d49805ff0d2375facbdbd7fe7193bf0c837aeb787c934db439b564 SHA512 9a56717e87b9bf6bfa27f3d953e41af18c55e92020fbcc14fd01f43835e542bf1c7adb195387400c955706f5ca8a69090e41d6edfb728717910cd19b801d6dfc WHIRLPOOL 79a786c95d9568a678db98b0f5b1a80001bf649065001d4d3e385ff92584eb3f6a89ce0e2ac44e3423c4a0c429999514ec71d4b2b2d4d81a136ecbb7d4491e8e
+EBUILD perf-4.1.5-r1.ebuild 5269 SHA256 934813830b158e3324d539998ba597eeebc4531be4620c4c883e662eaa38e407 SHA512 1aa7d9fad71cbaf1a28976cfe7dbf74d7e04b4a00f81e5d7e0b96cced0a051bcf9846122caa66bb1466790ef5b7dcea71a1b291b2300056b1846ce4e5531b165 WHIRLPOOL 4293e13b07e3e3820e065156d107ba4a55fc6b598dae3c1755ea691b4bd6c0004becd4d990aca62b43e7adc8f607475efb702f0566a1466c3568a39202186711
+EBUILD perf-4.4.4.ebuild 5040 SHA256 621a728a3aa34f81677f1a28ecd6a33cef99c69ccfe9fafe961c3219b6c1f685 SHA512 f39e5397d269f879dbaa62b4cfacebba27dd2f26feb17d70b5b4f60fcf256438c2920df340c27abb45f24404b21ace1c5bab982c7e4a93c2befa382762e76967 WHIRLPOOL 271c8022b129baa5bf49bf57efa22cd03ec164cb73b66a9a12237d08a751b7decfeef092add71a4051924c7769c6e08adb725547bb29d02087ea13255e53e875
+EBUILD perf-4.9.13.ebuild 4818 SHA256 da57feb21153f85189430a5792e33ed0601ba0fd3f459491f3f06ed5187b5ac4 SHA512 460bb9d5077c015c85bc5dc256407d41d8ddd8dc8cb7e1bce4146261b4fec3d9740750d2533b7e80286b136416e180ff4b08b2c42490c335e3aeaf13b89ec369 WHIRLPOOL 1008df96aee9c88e0dd0d351410bde8a5d337d751694fd02e5c965c3d4df4635a7e1db318dd25bc969f912790779f1eae6e9381b4ddf42eb56b3dede5dbbc59e
+MISC ChangeLog 3650 SHA256 0975840be7bd7127c7d5b83a130f6ae8621256a7f02eb80196c69298b918eca2 SHA512 742d129e590b0c36adc7cc3b81fa51184c1c147dec3aa5c844a704f81cbab7023f39229c7e06ffcf06f4a5af5d1ba44100b8421f4c52fa5b8f8c47df4016d7ae WHIRLPOOL effae523378dd7bbdfac3dbb990e7e1a0b8d0cb18c08128c138f3e84d8f6419a9c117c4e7ed867d2ebc4e32279ab12f6c99a921d596f36da2cac74c89c55abc3
+MISC ChangeLog-2015 6264 SHA256 740d932dcee9533fa7cb6a2a03eecdc04aeb744b5d456dcb9972f6c228b57e2f SHA512 aebf127fb17bd1fd086d9f0057dfb5f044e789f943dbda5ef2260b5145944c4f8f44d241610209ec9c9a65908aa932019d5f0d3c027dfb5869423daf6762cb08 WHIRLPOOL 0f040aa61460166d988e4becfe91449bab91e90c5ac2d5da04eeb8685142a96700f776625f21b4997d5518857597c851934ebcdf6e558407ee25adce0d5ca63f
+MISC metadata.xml 1153 SHA256 880863b904a364fe264b2d6e4db2d5086b543df748a140aeab88bf531db1c88e SHA512 18e5b436d7ae5ba8c9da8bd4007e33006e25f351d9e01e55127bd35f47446663faafa1de37283410e0cec9f00b8b4422afb4a8d256b8161d88c3c084e8c9a09d WHIRLPOOL 2f765f9167d86eb0317b673f91f2c44190dc6d1a231d2fc047cdea57c8c0fcc03083bdfa03fae2abae1263d225141f1b9f6109f91026c77d47f7e532fb907c31
diff --git a/dev-util/perf/files/perf-4.1.5-prefix.patch b/dev-util/perf/files/perf-4.1.5-prefix.patch
new file mode 100644
index 000000000000..0c4dff011306
--- /dev/null
+++ b/dev-util/perf/files/perf-4.1.5-prefix.patch
@@ -0,0 +1,43 @@
+commit 75e84ab906ef8935cff3df3d8929f1bafea81599
+Author: Lukas Wunner <lukas@wunner.de>
+Date:   Thu Jun 18 13:00:32 2015 +0200
+
+    perf tools: Fix build breakage if prefix= is specified
+    
+    Invoking Makefile.perf with prefix= breaks the build since Makefile.perf
+    hands that variable down to Makefile.build where it overrides
+    
+        prefix       := $(subst ./,,$(OUTPUT)$(dir)/)
+    
+    leading to errors like this:
+    
+        No rule to make target '/usrabspath.o', needed by '/usrlibperf-in.o'
+    
+    Signed-off-by: Lukas Wunner <lukas@wunner.de>
+    Acked-by: Jiri Olsa <jolsa@kernel.org>
+    Cc: David Ahern <dsahern@gmail.com>
+    Fixes: c819e2cf2eb6f65d3208d195d7a0edef6108d5
+    Link: http://lkml.kernel.org/r/5582c48a.84a22b0a.a918.5285SMTPIN_ADDED_MISSING@mx.google.com
+    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+
+diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
+index 10df572..98cfc38 100644
+--- a/tools/build/Makefile.build
++++ b/tools/build/Makefile.build
+@@ -94,12 +94,12 @@ obj-y        := $(patsubst %/, %/$(obj)-in.o, $(obj-y))
+ subdir-obj-y := $(filter %/$(obj)-in.o, $(obj-y))
+ 
+ # '$(OUTPUT)/dir' prefix to all objects
+-prefix       := $(subst ./,,$(OUTPUT)$(dir)/)
+-obj-y        := $(addprefix $(prefix),$(obj-y))
+-subdir-obj-y := $(addprefix $(prefix),$(subdir-obj-y))
++objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)
++obj-y        := $(addprefix $(objprefix),$(obj-y))
++subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y))
+ 
+ # Final '$(obj)-in.o' object
+-in-target := $(prefix)$(obj)-in.o
++in-target := $(objprefix)$(obj)-in.o
+ 
+ PHONY += $(subdir-y)
+ 
diff --git a/dev-util/perf/metadata.xml b/dev-util/perf/metadata.xml
new file mode 100644
index 000000000000..1b50bf7e527b
--- /dev/null
+++ b/dev-util/perf/metadata.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>naota@gentoo.org</email>
+  </maintainer>
+  <maintainer type="person">
+    <email>dlan@gentoo.org</email>
+    <name>Yixun Lan</name>
+  </maintainer>
+  <use>
+    <flag name="demangle">
+      Enable C++ symbol name demangling, using libbfd from
+      <pkg>sys-devel/binutils</pkg>. When this flag is enabled, the
+      package will have to be rebuilt after every version bump of
+      binutils.
+    </flag>
+    <flag name="doc">
+      Build documentation and man pages. With this USE flag disabled,
+      the --help parameter for perf and its sub-tools will not be
+      available. This is optional because it depends on a few
+      documentation handling tools that are not always welcome on user
+      systems.
+    </flag>
+	<flag name="numa">Enable NUMA support</flag>
+    <flag name="perl">
+      Add support for Perl as a scripting language for perf tools.
+    </flag>
+    <flag name="unwind">
+      Use sys-libs/libunwind for frame unwinding support.
+    </flag>
+  </use>
+</pkgmetadata>
diff --git a/dev-util/perf/perf-3.12.ebuild b/dev-util/perf/perf-3.12.ebuild
new file mode 100644
index 000000000000..9b930d58dece
--- /dev/null
+++ b/dev-util/perf/perf-3.12.ebuild
@@ -0,0 +1,177 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV/_rc} != ${PV} ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.bz2
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+elif [[ $(get_version_component_count) == 4 ]] ; then
+	# stable-release series
+	LINUX_VER=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV}.bz2
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+else
+	LINUX_VER=${PV}
+	SRC_URI=""
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.bz2"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~x86"
+IUSE="audit +demangle +doc perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-devel/binutils )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=( tools/perf tools/scripts tools/lib include lib "arch/*/include" "arch/*/lib" )
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} > ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e 's:-Werror::' \
+		-e 's:-ggdb3::' \
+		-e 's:-fstack-protector-all::' \
+		-e 's:^LDFLAGS =:EXTLIBS +=:' \
+		-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
+		-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
+		-e '/^ALL_CFLAGS =/s:$: $(CFLAGS_OPTIMIZE):' \
+		-e '/^ALL_LDFLAGS =/s:$: $(LDFLAGS_OPTIMIZE):' \
+		-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
+		"${S}"/Makefile || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/lk/Makefile || die
+	sed -i \
+		-e '/.FORCE-PERF-VERSION-FILE/s,.FORCE-PERF-VERSION-FILE,,g' \
+		"${S}"/Makefile \
+		"${S}"/Documentation/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(KV=2.6.23 tc-arch-kernel)
+	emake -j1 V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" \
+		prefix="/usr" bindir_relative="sbin" \
+		CFLAGS_OPTIMIZE="${CFLAGS}" \
+		LDFLAGS_OPTIMIZE="${LDFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}
diff --git a/dev-util/perf/perf-3.13.1-r1.ebuild b/dev-util/perf/perf-3.13.1-r1.ebuild
new file mode 100644
index 000000000000..39c962d6d05c
--- /dev/null
+++ b/dev-util/perf/perf-3.13.1-r1.ebuild
@@ -0,0 +1,182 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV} == *_rc* ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.xz
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+else
+	VER_COUNT=$(get_version_component_count)
+	if [[ ${VER_COUNT} -gt 2 ]] ; then
+		# stable-release series
+		LINUX_VER=$(get_version_component_range 1-2)
+		LINUX_PATCH=patch-${PV}.xz
+		SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+	else
+		LINUX_VER=${PV}
+		SRC_URI=""
+	fi
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~mips ~ppc ~x86"
+IUSE="audit +demangle +doc gtk perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-devel/binutils )
+	gtk? ( x11-libs/gtk+:2 )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=( tools/perf tools/scripts tools/lib include lib "arch/*/include" "arch/*/lib" )
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} > ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e 's:-Werror::' \
+		-e 's:-ggdb3::' \
+		-e 's:-fstack-protector-all::' \
+		-e 's:^LDFLAGS =:EXTLIBS +=:' \
+		-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
+		-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
+		-e '/^ALL_CFLAGS =/s:$: $(CFLAGS_OPTIMIZE):' \
+		-e '/^ALL_LDFLAGS =/s:$: $(LDFLAGS_OPTIMIZE):' \
+		-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
+		"${S}"/Makefile || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/lk/Makefile || die
+	sed -i \
+		-e '/.FORCE-PERF-VERSION-FILE/s,.FORCE-PERF-VERSION-FILE,,g' \
+		"${S}"/Makefile \
+		"${S}"/Documentation/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(KV=2.6.23 tc-arch-kernel)
+	emake V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" \
+		prefix="/usr" bindir_relative="bin" \
+		CFLAGS_OPTIMIZE="${CFLAGS}" \
+		LDFLAGS_OPTIMIZE="${LDFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_GTK2=$(puse gtk) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make -f Makefile.perf
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make -f Makefile.perf install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}
diff --git a/dev-util/perf/perf-3.15.5.ebuild b/dev-util/perf/perf-3.15.5.ebuild
new file mode 100644
index 000000000000..c2e5a6f47f2c
--- /dev/null
+++ b/dev-util/perf/perf-3.15.5.ebuild
@@ -0,0 +1,182 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV} == *_rc* ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.xz
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+else
+	VER_COUNT=$(get_version_component_count)
+	if [[ ${VER_COUNT} -gt 2 ]] ; then
+		# stable-release series
+		LINUX_VER=$(get_version_component_range 1-2)
+		LINUX_PATCH=patch-${PV}.xz
+		SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+	else
+		LINUX_VER=${PV}
+		SRC_URI=""
+	fi
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~x86"
+IUSE="audit debug +demangle +doc gtk perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-devel/binutils )
+	gtk? ( x11-libs/gtk+:2 )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=( tools/perf tools/scripts tools/include tools/lib include lib "arch/*/include" "arch/*/lib" )
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} > ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e 's:-Werror::' \
+		-e 's:-ggdb3::' \
+		-e 's:-fstack-protector-all::' \
+		-e 's:^LDFLAGS =:EXTLIBS +=:' \
+		-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
+		-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
+		-e '/^ALL_CFLAGS =/s:$: $(CFLAGS_OPTIMIZE):' \
+		-e '/^ALL_LDFLAGS =/s:$: $(LDFLAGS_OPTIMIZE):' \
+		-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
+		"${S}"/Makefile || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/api/Makefile || die
+	sed -i \
+		-e '/.FORCE-PERF-VERSION-FILE/s,.FORCE-PERF-VERSION-FILE,,g' \
+		"${S}"/Makefile \
+		"${S}"/Documentation/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(KV=2.6.23 tc-arch-kernel)
+	emake V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" \
+		prefix="/usr" bindir_relative="bin" \
+		CFLAGS_OPTIMIZE="${CFLAGS}" \
+		LDFLAGS_OPTIMIZE="${LDFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_GTK2=$(puse gtk) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make -f Makefile.perf
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make -f Makefile.perf install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}
diff --git a/dev-util/perf/perf-4.1.5-r1.ebuild b/dev-util/perf/perf-4.1.5-r1.ebuild
new file mode 100644
index 000000000000..4fdec292a19d
--- /dev/null
+++ b/dev-util/perf/perf-4.1.5-r1.ebuild
@@ -0,0 +1,190 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV} == *_rc* ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.xz
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+else
+	VER_COUNT=$(get_version_component_count)
+	if [[ ${VER_COUNT} -gt 2 ]] ; then
+		# stable-release series
+		LINUX_VER=$(get_version_component_range 1-2)
+		LINUX_PATCH=patch-${PV}.xz
+		SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+	else
+		LINUX_VER=${PV}
+		SRC_URI=""
+	fi
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~ppc ~x86"
+IUSE="audit debug +demangle +doc gtk numa perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-devel/binutils:= )
+	gtk? ( x11-libs/gtk+:2 )
+	numa? ( sys-process/numactl )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=(
+		tools/build tools/include tools/lib tools/perf tools/scripts
+		include lib "arch/*/include" "arch/*/lib"
+	)
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} \
+			> ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	epatch "${FILESDIR}"/${P}-prefix.patch
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e 's:-Werror::' \
+		-e 's:-ggdb3::' \
+		-e 's:-fstack-protector-all::' \
+		-e 's:^LDFLAGS =:EXTLIBS +=:' \
+		-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
+		-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
+		-e '/^ALL_CFLAGS =/s:$: $(CFLAGS_OPTIMIZE):' \
+		-e '/^ALL_LDFLAGS =/s:$: $(LDFLAGS_OPTIMIZE):' \
+		-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
+		"${S}"/Makefile || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/api/Makefile || die
+	sed -i \
+		-e '/.FORCE-PERF-VERSION-FILE/s,.FORCE-PERF-VERSION-FILE,,g' \
+		"${S}"/Makefile \
+		"${S}"/Documentation/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(tc-arch-kernel)
+	emake V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" \
+		prefix="/usr" bindir_relative="bin" \
+		CFLAGS_OPTIMIZE="${CFLAGS}" \
+		LDFLAGS_OPTIMIZE="${LDFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_GTK2=$(puse gtk) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		NO_LIBNUMA=$(puse numa) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make -f Makefile.perf
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make -f Makefile.perf install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}
diff --git a/dev-util/perf/perf-4.4.4.ebuild b/dev-util/perf/perf-4.4.4.ebuild
new file mode 100644
index 000000000000..a1366ba16e6f
--- /dev/null
+++ b/dev-util/perf/perf-4.4.4.ebuild
@@ -0,0 +1,184 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV} == *_rc* ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.xz
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+else
+	VER_COUNT=$(get_version_component_count)
+	if [[ ${VER_COUNT} -gt 2 ]] ; then
+		# stable-release series
+		LINUX_VER=$(get_version_component_range 1-2)
+		LINUX_PATCH=patch-${PV}.xz
+		SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+	else
+		LINUX_VER=${PV}
+		SRC_URI=""
+	fi
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~x86"
+IUSE="audit debug +demangle +doc gtk numa perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-devel/binutils:= )
+	gtk? ( x11-libs/gtk+:2 )
+	numa? ( sys-process/numactl )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	>=sys-kernel/linux-headers-4.4
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=(
+		tools/arch tools/build tools/include tools/lib tools/perf tools/scripts
+		include lib "arch/*/lib"
+	)
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} \
+			> ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e 's:-Werror::' \
+		-e 's:-ggdb3::' \
+		-e 's:-fstack-protector-all::' \
+		-e 's:^LDFLAGS =:EXTLIBS +=:' \
+		-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
+		-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
+		"${S}"/config/Makefile || die
+	sed -i \
+		-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
+		"${S}"/Makefile.perf || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/api/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(tc-arch-kernel)
+	emake V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" LD="$(tc-getLD)" \
+		prefix="/usr" bindir_relative="bin" \
+		EXTRA_CFLAGS="${CFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_GTK2=$(puse gtk) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		NO_LIBNUMA=$(puse numa) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make -f Makefile.perf
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make -f Makefile.perf install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}
diff --git a/dev-util/perf/perf-4.9.13.ebuild b/dev-util/perf/perf-4.9.13.ebuild
new file mode 100644
index 000000000000..99c34d5b4c5b
--- /dev/null
+++ b/dev-util/perf/perf-4.9.13.ebuild
@@ -0,0 +1,176 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="5"
+
+PYTHON_COMPAT=( python2_7 )
+inherit bash-completion-r1 versionator eutils toolchain-funcs python-single-r1 linux-info
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Userland tools for Linux Performance Counters"
+HOMEPAGE="https://perf.wiki.kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+if [[ ${PV} == *_rc* ]] ; then
+	LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
+	PATCH_VERSION=$(get_version_component_range 1-3)
+	LINUX_PATCH=patch-${PV//_/-}.xz
+	SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
+		mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
+else
+	VER_COUNT=$(get_version_component_count)
+	if [[ ${VER_COUNT} -gt 2 ]] ; then
+		# stable-release series
+		LINUX_VER=$(get_version_component_range 1-2)
+		LINUX_PATCH=patch-${PV}.xz
+		SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+	else
+		LINUX_VER=${PV}
+		SRC_URI=""
+	fi
+fi
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~x86 ~amd64-linux ~x86-linux"
+IUSE="audit debug +demangle +doc gtk numa perl python slang unwind"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="audit? ( sys-process/audit )
+	demangle? ( sys-libs/binutils-libs:= )
+	gtk? ( x11-libs/gtk+:2 )
+	numa? ( sys-process/numactl )
+	perl? ( dev-lang/perl )
+	python? ( ${PYTHON_DEPS} )
+	slang? ( dev-libs/newt )
+	unwind? ( sys-libs/libunwind )
+	dev-libs/elfutils"
+DEPEND="${RDEPEND}
+	>=sys-kernel/linux-headers-4.9
+	${LINUX_PATCH+dev-util/patchutils}
+	sys-devel/bison
+	sys-devel/flex
+	doc? (
+		app-text/asciidoc
+		app-text/sgml-common
+		app-text/xmlto
+		sys-process/time
+	)"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/perf"
+
+CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
+
+pkg_setup() {
+	linux-info_pkg_setup
+	use python && python-single-r1_pkg_setup
+}
+
+src_unpack() {
+	local paths=(
+		tools/arch tools/build tools/include tools/lib tools/perf tools/scripts
+		include lib "arch/*/lib"
+	)
+
+	# We expect the tar implementation to support the -j option (both
+	# GNU tar and libarchive's tar support that).
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	tar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} \
+			> ${P}.patch || die
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		cd "${S_K}"
+		epatch "${WORKDIR}"/${P}.patch
+	fi
+
+	# Drop some upstream too-developer-oriented flags and fix the
+	# Makefile in general
+	sed -i \
+		-e "s:\$(sysconfdir_SQ)/bash_completion.d:$(get_bashcompdir):" \
+		"${S}"/Makefile.perf || die
+	sed -i -e 's:-Werror::' "${S_K}"/tools/lib/api/Makefile || die
+
+	# Avoid the call to make kernelversion
+	echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
+
+	# The code likes to compile local assembly files which lack ELF markings.
+	find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
+}
+
+puse() { usex $1 "" no; }
+perf_make() {
+	# The arch parsing is a bit funky.  The perf tools package is integrated
+	# into the kernel, so it wants an ARCH that looks like the kernel arch,
+	# but it also wants to know about the split value -- i386/x86_64 vs just
+	# x86.  We can get that by telling the func to use an older linux version.
+	# It's kind of a hack, but not that bad ...
+	local arch=$(tc-arch-kernel)
+	emake V=1 \
+		CC="$(tc-getCC)" AR="$(tc-getAR)" LD="$(tc-getLD)" \
+		prefix="${EPREFIX}/usr" bindir_relative="bin" \
+		EXTRA_CFLAGS="${CFLAGS}" \
+		ARCH="${arch}" \
+		NO_DEMANGLE=$(puse demangle) \
+		NO_GTK2=$(puse gtk) \
+		NO_LIBAUDIT=$(puse audit) \
+		NO_LIBPERL=$(puse perl) \
+		NO_LIBPYTHON=$(puse python) \
+		NO_LIBUNWIND=$(puse unwind) \
+		NO_NEWT=$(puse slang) \
+		NO_LIBNUMA=$(puse numa) \
+		WERROR=0 \
+		"$@"
+}
+
+src_compile() {
+	perf_make -f Makefile.perf
+	use doc && perf_make -C Documentation
+}
+
+src_test() {
+	:
+}
+
+src_install() {
+	perf_make -f Makefile.perf install DESTDIR="${D}"
+
+	dodoc CREDITS
+
+	dodoc *txt Documentation/*.txt
+	if use doc ; then
+		dohtml Documentation/*.html
+		doman Documentation/*.1
+	fi
+}
+
+pkg_postinst() {
+	if ! use doc ; then
+		elog "Without the doc USE flag you won't get any documentation nor man pages."
+		elog "And without man pages, you won't get any --help output for perf and its"
+		elog "sub-tools."
+	fi
+}