Squashed 'lib/mbedtls/external/mbedtls/' content from commit 2ca6c285a0dd

git-subtree-dir: lib/mbedtls/external/mbedtls
git-subtree-split: 2ca6c285a0dd3f33982dd57299012dacab1ff206

3 files changed, 72 insertions, 0 deletions

diff --git a/programs/test/cmake_package_install/.gitignore b/programs/test/cmake_package_install/.gitignore
new file mode 100644
index 00000000000..b9b828288b6
--- /dev/null
+++ b/programs/test/cmake_package_install/.gitignore
@@ -0,0 +1,3 @@
+build
+Makefile
+cmake_package_install
diff --git a/programs/test/cmake_package_install/CMakeLists.txt b/programs/test/cmake_package_install/CMakeLists.txt
new file mode 100644
index 00000000000..6937af4f665
--- /dev/null
+++ b/programs/test/cmake_package_install/CMakeLists.txt
@@ -0,0 +1,41 @@
+cmake_minimum_required(VERSION 3.5.1)
+
+#
+# Simulate configuring and building Mbed TLS as the user might do it. We'll
+# install into a directory inside our own build directory.
+#
+
+set(MbedTLS_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../..")
+set(MbedTLS_INSTALL_DIR "${CMAKE_CURRENT_BINARY_DIR}/mbedtls")
+set(MbedTLS_BINARY_DIR "${MbedTLS_INSTALL_DIR}${CMAKE_FILES_DIRECTORY}")
+
+execute_process(
+    COMMAND "${CMAKE_COMMAND}"
+        "-H${MbedTLS_SOURCE_DIR}"
+        "-B${MbedTLS_BINARY_DIR}"
+        "-DENABLE_PROGRAMS=NO"
+        "-DENABLE_TESTING=NO"
+        # Turn on generated files explicitly in case this is a release
+        "-DGEN_FILES=ON"
+        "-DCMAKE_INSTALL_PREFIX=${MbedTLS_INSTALL_DIR}")
+
+execute_process(
+    COMMAND "${CMAKE_COMMAND}"
+        --build "${MbedTLS_BINARY_DIR}"
+        --target install)
+
+#
+# Locate the package.
+#
+
+list(INSERT CMAKE_PREFIX_PATH 0 "${MbedTLS_INSTALL_DIR}")
+find_package(MbedTLS REQUIRED)
+
+#
+# At this point, the Mbed TLS targets should have been imported, and we can now
+# link to them from our own program.
+#
+
+add_executable(cmake_package_install cmake_package_install.c)
+target_link_libraries(cmake_package_install
+    MbedTLS::mbedcrypto MbedTLS::mbedtls MbedTLS::mbedx509)
diff --git a/programs/test/cmake_package_install/cmake_package_install.c b/programs/test/cmake_package_install/cmake_package_install.c
new file mode 100644
index 00000000000..44a2adadf58
--- /dev/null
+++ b/programs/test/cmake_package_install/cmake_package_install.c
@@ -0,0 +1,28 @@
+/*
+ * Simple program to test that Mbed TLS builds correctly as an installable CMake
+ * package.
+ *
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#include "mbedtls/build_info.h"
+
+#include "mbedtls/platform.h"
+
+#include "mbedtls/version.h"
+
+/* The main reason to build this is for testing the CMake build, so the program
+ * doesn't need to do very much. It calls a single library function to ensure
+ * linkage works, but that is all. */
+int main()
+{
+    /* This version string is 18 bytes long, as advised by version.h. */
+    char version[18];
+
+    mbedtls_version_get_string_full(version);
+
+    mbedtls_printf("Built against %s\n", version);
+
+    return 0;
+}