Merge remote-tracking branch 'upstream-public/development' into development-restricted-merge-20230925

Conflicts:
* `include/mbedtls/build_info.h`: a new fragment to auto-enable
  `MBEDTLS_CIPHER_PADDING_PKCS7` was added in
  c9f4040f7f in `development-restricted`.
  In `development`, this section of the file has moved to
  `include/mbedtls/config_adjust_legacy_crypto.h`.
* `library/bignum.c`: function name change in `development-restricted` vs
  comment change in development. The comment change in `development` is not
  really relevant, so just take the line from `development-restricted`.

scripts/framework_dev/build_tree.py

@@ -19,12 +19,19 @@
 import os
 import inspect
 
+def looks_like_psa_crypto_root(path: str) -> bool:
+    """Whether the given directory looks like the root of the PSA Crypto source tree."""
+    return all(os.path.isdir(os.path.join(path, subdir))
+               for subdir in ['include', 'core', 'drivers', 'programs', 'tests'])
 
 def looks_like_mbedtls_root(path: str) -> bool:
     """Whether the given directory looks like the root of the Mbed TLS source tree."""
     return all(os.path.isdir(os.path.join(path, subdir))
                for subdir in ['include', 'library', 'programs', 'tests'])
 
+def looks_like_root(path: str) -> bool:
+    return looks_like_psa_crypto_root(path) or looks_like_mbedtls_root(path)
+
 def check_repo_path():
     """
     Check that the current working directory is the project root, and throw
@@ -42,7 +49,7 @@ def chdir_to_root() -> None:
     for d in [os.path.curdir,
               os.path.pardir,
               os.path.join(os.path.pardir, os.path.pardir)]:
-        if looks_like_mbedtls_root(d):
+        if looks_like_root(d):
             os.chdir(d)
             return
     raise Exception('Mbed TLS source tree not found')
@@ -62,6 +69,6 @@ def guess_mbedtls_root():
             if d in dirs:
                 continue
             dirs.add(d)
-            if looks_like_mbedtls_root(d):
+            if looks_like_root(d):
                 return d
     raise Exception('Mbed TLS source tree not found')

scripts/framework_dev/psa_storage.py

@@ -27,6 +27,7 @@ from typing import Dict, List, Optional, Set, Union
 import unittest
 
 from . import c_build_helper
+from . import build_tree
 
 
 class Expr:
@@ -51,13 +52,16 @@ class Expr:
     def update_cache(self) -> None:
         """Update `value_cache` for expressions registered in `unknown_values`."""
         expressions = sorted(self.unknown_values)
+        includes = ['include']
+        if build_tree.looks_like_psa_crypto_root('.'):
+            includes.append('drivers/builtin/include')
         values = c_build_helper.get_c_expression_values(
             'unsigned long', '%lu',
             expressions,
             header="""
             #include <psa/crypto.h>
             """,
-            include_path=['include']) #type: List[str]
+            include_path=includes) #type: List[str]
         for e, v in zip(expressions, values):
             self.value_cache[e] = int(v, 0)
         self.unknown_values.clear()