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Change "full" to affect boolean settings rather than use sections

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To get rid on the reliance on sections, change "full" and friends to enable
settings based on whether the setting is boolean, rather than based on the
section it contains.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-09-19 19:57:58 +02:00
parent 702d75a2f9
commit e4c6955e43
1 changed files with 20 additions and 9 deletions
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29
scripts/config.py
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@ -19,13 +19,24 @@ import framework_scripts_path # pylint: disable=unused-import
from mbedtls_framework import config_common
def is_full_section(section):
"""Is this section affected by "config.py full" and friends?
def is_boolean_setting(name, value):
"""Is this a boolean setting?
In a config file where the sections are not used the whole config file
is an empty section (with value None) and the whole file is affected.
Mbed TLS boolean settings are enabled if the preprocessor macro is
defined, and disabled if the preprocessor macro is not defined. The
macro definition line in the configuration file has an empty expansion.
PSA_WANT_xxx settings are also boolean, but when they are enabled,
they expand to a nonzero value. We leave them undefined when they
are disabled. (Setting them to 0 currently means to enable them, but
this might change to mean disabling them. Currently we just never set
them to 0.)
"""
return section is None or section.endswith('support') or section.endswith('modules')
if name.startswith('PSA_WANT_'):
return True
if not value:
return True
return False
def realfull_adapter(_name, _value, active, section):
"""Activate all symbols found in the global and boolean feature sections.
@ -138,9 +149,9 @@ def include_in_full(name):
return is_seamless_alt(name)
return True
def full_adapter(name, _value, active, section):
def full_adapter(name, value, active, _section):
"""Config adapter for "full"."""
if not is_full_section(section):
if not is_boolean_setting(name, value):
return active
return include_in_full(name)
@ -176,9 +187,9 @@ def keep_in_baremetal(name):
return False
return True
def baremetal_adapter(name, _value, active, section):
def baremetal_adapter(name, value, active, _section):
"""Config adapter for "baremetal"."""
if not is_full_section(section):
if not is_boolean_setting(name, value):
return active
if name == 'MBEDTLS_NO_PLATFORM_ENTROPY':
# No OS-provided entropy source