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New configuration preset baremetal_size

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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>
This commit is contained in:
Gilles Peskine 2021-09-01 19:51:19 +02:00
parent 97f188289d
commit 98bb5d330d
1 changed files with 21 additions and 0 deletions
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21
scripts/config.py
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@ -272,6 +272,24 @@ def baremetal_adapter(name, active, section):
return True return True
return include_in_full(name) and keep_in_baremetal(name) 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_CERTS_C and
# MBEDTLS_ERROR_C) are not listed and therefore will be included when doing
# code size measurements.
EXCLUDE_FOR_SIZE = frozenset([
'MBEDTLS_CHECK_PARAMS', # increases the size of many modules
'MBEDTLS_CHECK_PARAMS_ASSERT', # no effect without MBEDTLS_CHECK_PARAMS
'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): def include_in_crypto(name):
"""Rules for symbols in a crypto configuration.""" """Rules for symbols in a crypto configuration."""
if name.startswith('MBEDTLS_X509_') or \ if name.startswith('MBEDTLS_X509_') or \
@ -483,6 +501,9 @@ if __name__ == '__main__':
add_adapter('baremetal', baremetal_adapter, add_adapter('baremetal', baremetal_adapter,
"""Like full, but exclude features that require platform """Like full, but exclude features that require platform
features such as file input-output.""") 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, add_adapter('full', full_adapter,
"""Uncomment most features. """Uncomment most features.
Exclude alternative implementations and platform support Exclude alternative implementations and platform support