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From c7a3e265041f9fd0d86d473338122a597d5234c5 Mon Sep 17 00:00:00 2001
From: Hongxu Jia <hongxu.jia@eng.windriver.com>
Date: Sun, 12 Mar 2023 23:38:01 -0700
Subject: [PATCH] add yocto toolchain to support cross compiling

Upstream-Status: Inappropriate [oe specific]

Signed-off-by: Hongxu Jia <hongxu.jia@eng.windriver.com>
---
 WORKSPACE                 | 6 ++++++
 tensorflow/BUILD          | 9 +++++++++
 tensorflow/workspace2.bzl | 8 ++++++++
 3 files changed, 23 insertions(+)

diff --git a/WORKSPACE b/WORKSPACE
index 1286ef9ac03..3ed96c1052d 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -21,3 +21,9 @@ tf_workspace1()
 load("@//tensorflow:workspace0.bzl", "tf_workspace0")
 
 tf_workspace0()
+
+new_local_repository(
+    name = "yocto_compiler",
+    path = "%%WORKDIR%%",
+    build_file = "//:BUILD.yocto_compiler",
+)
diff --git a/tensorflow/BUILD b/tensorflow/BUILD
index 0d27a8294f5..3eea542c7a3 100644
--- a/tensorflow/BUILD
+++ b/tensorflow/BUILD
@@ -289,6 +289,15 @@ config_setting(
     visibility = ["//visibility:public"],
 )
 
+config_setting(
+    name = "yocto_armeabi",
+    values = {
+        "crosstool_top": "@local_config_yocto_compiler//:toolchain",
+        "cpu": "armeabi",
+    },
+    visibility = ["//visibility:public"],
+)
+
 config_setting(
     name = "android_arm",
     flag_values = if_google(
diff --git a/tensorflow/workspace2.bzl b/tensorflow/workspace2.bzl
index 11681ff4e29..b8fa81642bd 100644
--- a/tensorflow/workspace2.bzl
+++ b/tensorflow/workspace2.bzl
@@ -11,6 +11,7 @@ load("//third_party/py:python_configure.bzl", "python_configure")
 load("//third_party/systemlibs:syslibs_configure.bzl", "syslibs_configure")
 load("//tensorflow/tools/toolchains:cpus/aarch64/aarch64_compiler_configure.bzl", "aarch64_compiler_configure")
 load("//tensorflow/tools/toolchains:cpus/arm/arm_compiler_configure.bzl", "arm_compiler_configure")
+load("//third_party/toolchains/yocto:yocto_compiler_configure.bzl", "yocto_compiler_configure")
 load("//tensorflow/tools/toolchains/embedded/arm-linux:arm_linux_toolchain_configure.bzl", "arm_linux_toolchain_configure")
 load("//third_party:repo.bzl", "tf_http_archive", "tf_mirror_urls")
 load("//third_party/clang_toolchain:cc_configure_clang.bzl", "cc_download_clang_toolchain")
@@ -120,6 +121,13 @@ def _tf_toolchains():
     # Load aarch64 toolchain
     aarch64_compiler_configure()
 
+    # Point //external/local_config_yocto_compiler to //external/yocto_compiler
+    yocto_compiler_configure(
+        name = "local_config_yocto_compiler",
+        build_file = "//third_party/toolchains/yocto:BUILD",
+        remote_config_repo = "../yocto_compiler",
+    )
+
     # TFLite crossbuild toolchain for embeddeds Linux
     arm_linux_toolchain_configure(
         name = "local_config_embedded_arm",
-- 
2.37.1