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Disable debugging features in baremetal

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The baremetal configuration is, among other things, our default
reference point for code size measurements. So disable debugging
features that would not be enabled in production where code size is
limited. In particular, this shrinks the core SSL modules by about
half. Keep debugging features that are solely in their own
modules (MBEDTLS_ERROR_C, MBEDTLS_VERSION_FEATURES) since it's easy to
filter them out.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2021-04-16 16:06:32 +02:00
parent 1724bd2a4f
commit bab7ef4f0d
1 changed files with 5 additions and 2 deletions
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7
scripts/config.pl
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@ -66,8 +66,9 @@
# #
# The baremetal configuration excludes options that require a library or # The baremetal configuration excludes options that require a library or
# operating system feature that is typically not present on bare metal # operating system feature that is typically not present on bare metal
# systems. Features that are excluded from "full" won't be in "baremetal" # systems. It also excludes debugging features that increase the code size
# either. # of other modules.
# Features that are excluded from "full" won't be in "baremetal" either.
use warnings; use warnings;
use strict; use strict;
@ -136,6 +137,7 @@ _ALT\s*$
# Things that should be disabled in "baremetal" # Things that should be disabled in "baremetal"
my @excluded_baremetal = qw( my @excluded_baremetal = qw(
MBEDTLS_DEBUG_C
MBEDTLS_ENTROPY_NV_SEED MBEDTLS_ENTROPY_NV_SEED
MBEDTLS_FS_IO MBEDTLS_FS_IO
MBEDTLS_HAVEGE_C MBEDTLS_HAVEGE_C
@ -147,6 +149,7 @@ MBEDTLS_NET_C
MBEDTLS_PLATFORM_FPRINTF_ALT MBEDTLS_PLATFORM_FPRINTF_ALT
MBEDTLS_PLATFORM_NV_SEED_ALT MBEDTLS_PLATFORM_NV_SEED_ALT
MBEDTLS_PLATFORM_TIME_ALT MBEDTLS_PLATFORM_TIME_ALT
MBEDTLS_TEST_HOOKS
MBEDTLS_THREADING_C MBEDTLS_THREADING_C
MBEDTLS_THREADING_PTHREAD MBEDTLS_THREADING_PTHREAD
MBEDTLS_TIMING_C MBEDTLS_TIMING_C