initial buildroot for linux 5.15

package/optee-benchmark/Config.in

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+config BR2_PACKAGE_OPTEE_BENCHMARK
+	bool "optee-benchmark"
+	depends on BR2_USE_MMU # fork()
+	depends on BR2_TOOLCHAIN_HAS_THREADS # optee-client
+	depends on !BR2_STATIC_LIBS # optee-client
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3 # optee-client
+	select BR2_PACKAGE_OPTEE_CLIENT
+	select BR2_PACKAGE_LIBYAML
+	help
+	  Enable the OP-TEE benchmark package that brings facilities
+	  for profiling traversal and execution timings when
+	  invoking OP-TEE. OP-TEE benchmark is a component delivered
+	  by the OP-TEE project.
+
+	  http://github.com/linaro-swg/optee_benchmark
+
+comment "optee-benchmark needs a toolchain w/ threads, dynamic library, headers >= 4.3"
+	depends on BR2_USE_MMU
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3

package/optee-benchmark/optee-benchmark.hash

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+# From https://github.com/linaro-swg/optee_benchmark/archive/3.15.0/optee-benchmark-3.15.0.tar.gz
+sha256 f1ddac5e9f58333194eb302e6d9840fa334300bc103abb3d9f783bf009a78c50 optee-benchmark-3.15.0.tar.gz
+# Locally computed
+sha256 0571be5b739142dc3e40e0a4e7e30d4ab8bff0d4d606a3f2db2010745587d383  LICENSE

package/optee-benchmark/optee-benchmark.mk

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+################################################################################
+#
+# optee-benchmark
+#
+################################################################################
+
+OPTEE_BENCHMARK_VERSION = 3.15.0
+OPTEE_BENCHMARK_SITE = $(call github,linaro-swg,optee_benchmark,$(OPTEE_BENCHMARK_VERSION))
+OPTEE_BENCHMARK_LICENSE = BSD-2-Clause
+OPTEE_BENCHMARK_LICENSE_FILES = LICENSE
+
+OPTEE_BENCHMARK_DEPENDENCIES = optee-client libyaml
+
+$(eval $(cmake-package))