initial buildroot for linux 5.15

package/powertop/0001-dont-force-stack-smashing-protection.patch

@@ -0,0 +1,18 @@
+Do not pass -fstack-protector unconditionally
+
+Using -fstack-protector only works when the toolchain has SSP support.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/src/Makefile.am
+===================================================================
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -127,7 +127,6 @@
+ 	-Wformat \
+ 	-Wshadow \
+ 	-fno-omit-frame-pointer \
+-	-fstack-protector \
+ 	$(GLIB2_CFLAGS) \
+ 	$(LIBNL_CFLAGS) \
+ 	$(NCURSES_CFLAGS) \

package/powertop/Config.in

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_POWERTOP
+	bool "powertop"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libnl
+	depends on BR2_USE_WCHAR
+	select BR2_PACKAGE_NCURSES
+	select BR2_PACKAGE_PCIUTILS
+	select BR2_PACKAGE_LIBNL
+	help
+	  A tool to diagnose issues with power consumption and power
+	  management
+
+	  https://01.org/powertop/
+
+comment "powertop needs a toolchain w/ C++, threads, wchar"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_USE_WCHAR

package/powertop/powertop.hash

@@ -0,0 +1,5 @@
+# Locally calculated after checking pgp signature
+# https://01.org/sites/default/files/downloads/powertop-2.13.tar.gz.asc.txt
+# using key 22E8F306C8FA4BAA2A5F36F3A0303B060918941C
+sha256  a65f992ca4a419bc73b623651060eb9fc00c5a86fa03556358cd9db011ef3178  powertop-2.13.tar.gz
+sha256  b499eddebda05a8859e32b820a64577d91f1de2b52efa2a1575a2cb4000bc259  COPYING

package/powertop/powertop.mk

@@ -0,0 +1,25 @@
+################################################################################
+#
+# powertop
+#
+################################################################################
+
+POWERTOP_VERSION = 2.13
+POWERTOP_SITE = https://01.org/sites/default/files/downloads
+POWERTOP_DEPENDENCIES = pciutils ncurses libnl host-pkgconf \
+	$(TARGET_NLS_DEPENDENCIES)
+POWERTOP_LICENSE = GPL-2.0
+POWERTOP_LICENSE_FILES = COPYING
+POWERTOP_CONF_ENV = LIBS=$(TARGET_NLS_LIBS)
+# 0001-dont-force-stack-smashing-protection.patch
+POWERTOP_AUTORECONF = YES
+
+# Help powertop at finding the right ncurses library depending on
+# which one is available.
+ifeq ($(BR2_PACKAGE_NCURSES_WCHAR),y)
+POWERTOP_CONF_ENV += ac_cv_search_delwin="-lncursesw"
+else
+POWERTOP_CONF_ENV += ac_cv_search_delwin="-lncurses"
+endif
+
+$(eval $(autotools-package))