From b5fa643fa475a1956adcb693f6bd23e3d40798ee Mon Sep 17 00:00:00 2001
From: Christian Wiese <christian.wiese@securepoint.de>
Date: Thu, 11 Apr 2013 16:03:20 +0200
Subject: [PATCH] linux: improved to build performance analysis tools if
 requested

---
 base/linux/config-700.in |  6 +++++-
 base/linux/linux-conf.in | 24 +++++++++++++++++++++++-
 base/linux/linux.conf    |  7 ++++++-
 3 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/base/linux/config-700.in b/base/linux/config-700.in
index 65175a7ba..869b4e214 100644
--- a/base/linux/config-700.in
+++ b/base/linux/config-700.in
@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../linux/config-700.in
-# Copyright (C) 2006 - 2012 The OpenSDE Project
+# Copyright (C) 2006 - 2013 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -34,4 +34,8 @@ menu_begin MENU_PKG_LINUX 'Linux Kernel Options'
        			skas3 'Build UML Host kernel with SKAS3 support' \
                 	guest 'Build UML Guest kernel (Not implemented yet!)'
 	fi
+
+	comment ' '
+	comment 'Debugging/Development options'
+	bool "Build Performance analysis tools" SDECFG_PKG_LINUX_PERFTOOLS 0
 menu_end
diff --git a/base/linux/linux-conf.in b/base/linux/linux-conf.in
index e68377eb5..4fcc24257 100644
--- a/base/linux/linux-conf.in
+++ b/base/linux/linux-conf.in
@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../linux/linux-conf.in
-# Copyright (C) 2006 - 2012 The OpenSDE Project
+# Copyright (C) 2006 - 2013 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -326,6 +326,28 @@ lx_config() {
 	echo "... configuration of $lx_kernelrelease finished!"
 }
 
+lx_build_perftools() {
+	echo_status "Building performance analysis tools"
+	local perfmakeopt=
+
+	var_append perfmakeopt ' ' 'ARCH=$arch'
+	var_append perfmakeopt ' ' 'DESTDIR=$root/'
+	var_append perfmakeopt ' ' 'prefix=/$prefix'
+
+	if ! pkginstalled python; then
+		echo_warning "Disabling python extensions (python not available)"
+		var_append perfmakeopt ' ' "NO_LIBPYTHON=1 PYTHON="
+	fi
+
+	if ! pkginstalled elfutils; then
+		echo_warning "Disabling debug-info analysis feature (elfutils not available)"
+		var_append perfmakeopt ' ' "NO_DWARF=1"
+	fi
+
+	eval $MAKE -C tools/perf $perfmakeopt
+	eval $MAKE -C tools/perf $perfmakeopt install
+}
+
 pkg_linux_brokenfiles="$base/architecture/$arch/kernel$treever-disable.lst \
 	$base/package/*/linux$treever/disable-broken.lst \
 	$pkg_linux_brokenfiles"
diff --git a/base/linux/linux.conf b/base/linux/linux.conf
index 767f58313..e92dc1b8b 100644
--- a/base/linux/linux.conf
+++ b/base/linux/linux.conf
@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../linux/linux.conf
-# Copyright (C) 2007 - 2010 The OpenSDE Project
+# Copyright (C) 2007 - 2013 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -99,6 +99,11 @@ main_lx() {
 
 	hook_eval postmake
 
+	# build performance analysis tools
+	if [ "$SDECFG_PKG_LINUX_PERFTOOLS" == 1 ]; then
+		lx_build_perftools
+	fi
+
 	# iterate over the packages that provide 3rd party linux kernel modules
 	if grep -q "CONFIG_MODULES=y" .config ; then
 		module_error=0