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rp2: Workaround pico_aon_timer timezone binary size increase.

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Provide stub implementations of localtime_r() and mktime() to avoid
code size increase.

Reported upstream at https://github.com/raspberrypi/pico-sdk/issues/1810

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
This commit is contained in:
Angus Gratton 2024-08-13 10:34:23 +10:00 committed by Damien George
parent fa15ae4503
commit 8cc7c64d01
2 changed files with 43 additions and 0 deletions
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1
ports/rp2/CMakeLists.txt
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@ -147,6 +147,7 @@ set(MICROPY_SOURCE_DRIVERS
set(MICROPY_SOURCE_PORT
clocks_extra.c
datetime_patch.c
fatfs_port.c
help.c
machine_bitstream.c

42
ports/rp2/datetime_patch.c Normal file
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@ -0,0 +1,42 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2024 Angus Gratton
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <time.h>
#include "py/mpconfig.h"
#include "shared/timeutils/timeutils.h"
// This is a workaround for the issue that pico-sdk datetime.c will otherwise
// pull in a lot of libc code for time zone support.
//
// Upstream issue is https://github.com/raspberrypi/pico-sdk/issues/1810
struct tm *localtime_r(const time_t *__restrict time, struct tm *__restrict local_time) {
return gmtime_r(time, local_time);
}
time_t mktime(struct tm *__restrict tm) {
return timeutils_mktime(tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
}