[Buildroot] [PATCH v8 02/10] package/ruy: new package

[James Hilliard <james.hilliard1@gmail.com>]

From: Stefan Hager <stefan.hager@ginzinger.com>

This package is required by tensorflow-lite.

Tested-by: Stefan Hager <stefan.hager@ginzinger.com>
Signed-off-by: Stefan Hager <stefan.hager@ginzinger.com>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
---
Changes v6 -> v7:
  - update to latest version
Changes v5 -> v6:
  - add architecture dependency
  - update to latest version
Changes v2 -> v3:
  - add C++14 dependency
---
 DEVELOPERS            |  1 +
 package/Config.in     |  1 +
 package/ruy/Config.in | 22 ++++++++++++++++++++++
 package/ruy/ruy.hash  |  4 ++++
 package/ruy/ruy.mk    | 18 ++++++++++++++++++
 5 files changed, 46 insertions(+)
 create mode 100644 package/ruy/Config.in
 create mode 100644 package/ruy/ruy.hash
 create mode 100644 package/ruy/ruy.mk

diff --git a/DEVELOPERS b/DEVELOPERS
index 8e33b20bba..e9e106e250 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -3034,6 +3034,7 @@ F:	package/ti-gfx/
 
 N:	Stefan Hager <stefan.hager@ginzinger.com>
 F:	package/cpuinfo/
+F:	package/ruy/
 
 N:	Stefan Nickl <Stefan.Nickl@gmail.com>
 F:	board/freescale/imx8dxlevk/
diff --git a/package/Config.in b/package/Config.in
index 70ad2af568..f982b7332a 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -2300,6 +2300,7 @@ endif
 	source "package/qlibc/Config.in"
 	source "package/reproc/Config.in"
 	source "package/riemann-c-client/Config.in"
+	source "package/ruy/Config.in"
 	source "package/shapelib/Config.in"
 	source "package/skalibs/Config.in"
 	source "package/sphinxbase/Config.in"
diff --git a/package/ruy/Config.in b/package/ruy/Config.in
new file mode 100644
index 0000000000..cc137a403c
--- /dev/null
+++ b/package/ruy/Config.in
@@ -0,0 +1,22 @@
+config BR2_PACKAGE_RUY_ARCH_SUPPORTS
+	bool
+	default y if BR2_PACKAGE_CPUINFO_ARCH_SUPPORTS
+
+config BR2_PACKAGE_RUY
+	bool "ruy"
+	depends on BR2_PACKAGE_CPUINFO_ARCH_SUPPORTS
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C++14
+	depends on BR2_TOOLCHAIN_HAS_THREADS # cpuinfo
+	select BR2_PACKAGE_CPUINFO
+	help
+	  Ruy is a matrix multiplication library. Its focus is to cover
+	  the matrix multiplication needs of neural network inference
+	  engines. Its initial user has been TensorFlow Lite, where it
+	  is used by default on the ARM CPU architecture.
+
+	  https://github.com/google/ruy
+
+comment "ruy needs a toolchain w/ C++14, threads"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || !BR2_TOOLCHAIN_HAS_THREADS
diff --git a/package/ruy/ruy.hash b/package/ruy/ruy.hash
new file mode 100644
index 0000000000..159687bf04
--- /dev/null
+++ b/package/ruy/ruy.hash
@@ -0,0 +1,4 @@
+# Locally calculated
+sha256  0bd02bef7675d3edd8168e6e4ce22e162516947fcc07bb79809be4cda8f27a0c  ruy-83fd40d730feb0804fafbc2d8814bcc19a17b2e5.tar.gz
+# License files, locally calculated
+sha256  cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30  LICENSE
diff --git a/package/ruy/ruy.mk b/package/ruy/ruy.mk
new file mode 100644
index 0000000000..3e83553f19
--- /dev/null
+++ b/package/ruy/ruy.mk
@@ -0,0 +1,18 @@
+################################################################################
+#
+# ruy
+#
+################################################################################
+
+RUY_VERSION = 83fd40d730feb0804fafbc2d8814bcc19a17b2e5
+RUY_SITE = $(call github,google,ruy,$(RUY_VERSION))
+RUY_LICENSE = Apache-2.0
+RUY_LICENSE_FILES = LICENSE
+RUY_INSTALL_STAGING = YES
+RUY_DEPENDENCIES = cpuinfo
+RUY_CONF_OPTS = \
+	-DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+	-DRUY_FIND_CPUINFO=ON \
+	-DRUY_MINIMAL_BUILD=ON
+
+$(eval $(cmake-package))
-- 
2.34.1

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