Added framework as a flattened directory

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>

framework/scripts/mbedtls_framework/build_tree.py

@@ -0,0 +1,144 @@
+"""Mbed TLS build tree information and manipulation.
+"""
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+
+import os
+import inspect
+import re
+from typing import Optional
+
+def looks_like_tf_psa_crypto_root(path: str) -> bool:
+    """Whether the given directory looks like the root of the PSA Crypto source tree."""
+    try:
+        with open(os.path.join(path, 'scripts', 'project_name.txt'), 'r') as f:
+            return f.read() == "TF-PSA-Crypto\n"
+    except FileNotFoundError:
+        return False
+
+def looks_like_mbedtls_root(path: str) -> bool:
+    """Whether the given directory looks like the root of the Mbed TLS source tree."""
+    try:
+        with open(os.path.join(path, 'scripts', 'project_name.txt'), 'r') as f:
+            return f.read() == "Mbed TLS\n"
+    except FileNotFoundError:
+        return False
+
+def looks_like_root(path: str) -> bool:
+    return looks_like_tf_psa_crypto_root(path) or looks_like_mbedtls_root(path)
+
+def crypto_core_directory(root: Optional[str] = None, relative: Optional[bool] = False) -> str:
+    """
+    Return the path of the directory containing the PSA crypto core
+    for either TF-PSA-Crypto or Mbed TLS.
+
+    Returns either the full path or relative path depending on the
+    "relative" boolean argument.
+    """
+    if root is None:
+        root = guess_project_root()
+    if looks_like_tf_psa_crypto_root(root):
+        if relative:
+            return "core"
+        return os.path.join(root, "core")
+    elif looks_like_mbedtls_root(root):
+        if is_mbedtls_3_6():
+            path = "library"
+        else:
+            path = "tf-psa-crypto/core"
+        if relative:
+            return path
+        return os.path.join(root, path)
+    else:
+        raise Exception('Neither Mbed TLS nor TF-PSA-Crypto source tree found')
+
+def crypto_library_filename(root: Optional[str] = None) -> str:
+    """Return the crypto library filename for either TF-PSA-Crypto or Mbed TLS."""
+    if root is None:
+        root = guess_project_root()
+    if looks_like_tf_psa_crypto_root(root):
+        return "tfpsacrypto"
+    elif looks_like_mbedtls_root(root):
+        return "mbedcrypto"
+    else:
+        raise Exception('Neither Mbed TLS nor TF-PSA-Crypto source tree found')
+
+def check_repo_path():
+    """Check that the current working directory is the project root, and throw
+    an exception if not.
+    """
+    if not all(os.path.isdir(d) for d in ["include", "library", "tests"]):
+        raise Exception("This script must be run from Mbed TLS root")
+
+def chdir_to_root() -> None:
+    """Detect the root of the Mbed TLS source tree and change to it.
+
+    The current directory must be up to two levels deep inside an Mbed TLS
+    source tree.
+    """
+    for d in [os.path.curdir,
+              os.path.pardir,
+              os.path.join(os.path.pardir, os.path.pardir)]:
+        if looks_like_root(d):
+            os.chdir(d)
+            return
+    raise Exception('Mbed TLS source tree not found')
+
+def guess_project_root():
+    """Guess project source code directory.
+
+    Return the first possible project root directory.
+    """
+    dirs = set({})
+    for frame in inspect.stack():
+        path = os.path.dirname(frame.filename)
+        for d in ['.', os.path.pardir] \
+                 + [os.path.join(*([os.path.pardir]*i)) for i in range(2, 10)]:
+            d = os.path.abspath(os.path.join(path, d))
+            if d in dirs:
+                continue
+            dirs.add(d)
+            if looks_like_root(d):
+                return d
+    raise Exception('Neither Mbed TLS nor TF-PSA-Crypto source tree found')
+
+def guess_mbedtls_root(root: Optional[str] = None) -> str:
+    """Guess Mbed TLS source code directory.
+
+    Return the first possible Mbed TLS root directory.
+    Raise an exception if we are not in Mbed TLS.
+    """
+    if root is None:
+        root = guess_project_root()
+    if looks_like_mbedtls_root(root):
+        return root
+    else:
+        raise Exception('Mbed TLS source tree not found')
+
+def guess_tf_psa_crypto_root(root: Optional[str] = None) -> str:
+    """Guess TF-PSA-Crypto source code directory.
+
+    Return the first possible TF-PSA-Crypto root directory.
+    Raise an exception if we are not in TF-PSA-Crypto.
+    """
+    if root is None:
+        root = guess_project_root()
+    if looks_like_tf_psa_crypto_root(root):
+        return root
+    else:
+        raise Exception('TF-PSA-Crypto source tree not found')
+
+def is_mbedtls_3_6() -> bool:
+    """Whether the working tree is an Mbed TLS 3.6 one or not
+
+    Return false if we are in TF-PSA-Crypto or in Mbed TLS but with a version
+    different from 3.6.x.
+    Raise an exception if we are neither in Mbed TLS nor in TF-PSA-Crypto.
+    """
+    root = guess_project_root()
+    if not looks_like_mbedtls_root(root):
+        return False
+    with open(os.path.join(root, 'include', 'mbedtls', 'build_info.h'), 'r') as f:
+        return re.search(r"#define MBEDTLS_VERSION_NUMBER.*0x0306", f.read()) is not None