From 197496af690ec603c31568fcf6430fc96b15835a Mon Sep 17 00:00:00 2001 From: Jaeden Amero Date: Tue, 8 Jun 2021 18:31:27 +0100 Subject: [PATCH] config: Allow Mbed to implement TIMING_C Mbed OS now provides POSIX-like time functions, although not alarm() nor signal(). It is possible to implement MBEDTLS_TIMING_ALT on Mbed OS, so we should not artificially prevent this in check-config. Remove the the check that prevents implementing MBEDTLS_TIMING_ALT on Mbed OS. Note that this limitation originally was added in the following commit, although there isn't much context around why the restriction was imposed: 63e7ebaaa184 ("Add material for generating yotta module"). In 2015, Mbed OS was quite a different thing: no RTOS, no threads, just an asynchronous event loop model. I'd suppose the asynchronous event loop model made it difficult before to implement MBEDTLS_TIMING_C on Mbed OS, but that is no longer the case. Fixes #4633 Signed-off-by: Jaeden Amero --- ChangeLog.d/mbed-can-do-timing.txt | 3 +++ include/mbedtls/check_config.h | 5 ++--- 2 files changed, 5 insertions(+), 3 deletions(-) create mode 100644 ChangeLog.d/mbed-can-do-timing.txt diff --git a/ChangeLog.d/mbed-can-do-timing.txt b/ChangeLog.d/mbed-can-do-timing.txt new file mode 100644 index 000000000..d83da0243 --- /dev/null +++ b/ChangeLog.d/mbed-can-do-timing.txt @@ -0,0 +1,3 @@ +Bugfix + * Remove outdated check-config.h check that prevented implementing the + timing module on Mbed OS. Fixes #4633. diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h index ef19f3834..90dee6c1a 100644 --- a/include/mbedtls/check_config.h +++ b/include/mbedtls/check_config.h @@ -55,9 +55,8 @@ #endif #endif /* _WIN32 */ -#if defined(TARGET_LIKE_MBED) && \ - ( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) ) -#error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS" +#if defined(TARGET_LIKE_MBED) && defined(MBEDTLS_NET_C) +#error "The NET module is not available for mbed OS - please use the network functions provided by Mbed OS" #endif #if defined(MBEDTLS_DEPRECATED_WARNING) && \