New configuration preset baremetal_size
The baremetal configuration includes debugging features whose size is not
particularly interesting. Create a new preset for use when benchmarking code
size which excludes debugging features that increase the size of
non-debugging modules.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/scripts/config.py b/scripts/config.py
index 6d5edc7..85f38ef 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -272,6 +272,21 @@
return True
return include_in_full(name) and keep_in_baremetal(name)
+# This set contains options that are mostly for debugging or test purposes,
+# and therefore should be excluded when doing code size measurements.
+# Options that are their own module (such as MBEDTLS_ERROR_C) are not listed
+# and therefore will be included when doing code size measurements.
+EXCLUDE_FOR_SIZE = frozenset([
+ 'MBEDTLS_DEBUG_C', # large code size increase in TLS
+ 'MBEDTLS_SELF_TEST', # increases the size of many modules
+ 'MBEDTLS_TEST_HOOKS', # only useful with the hosted test framework, increases code size
+])
+
+def baremetal_size_adapter(name, active, section):
+ if name in EXCLUDE_FOR_SIZE:
+ return False
+ return baremetal_adapter(name, active, section)
+
def include_in_crypto(name):
"""Rules for symbols in a crypto configuration."""
if name.startswith('MBEDTLS_X509_') or \
@@ -484,6 +499,9 @@
add_adapter('baremetal', baremetal_adapter,
"""Like full, but exclude features that require platform
features such as file input-output.""")
+ add_adapter('baremetal_size', baremetal_size_adapter,
+ """Like baremetal, but exclude debugging features.
+ Useful for code size measurements.""")
add_adapter('full', full_adapter,
"""Uncomment most features.
Exclude alternative implementations and platform support