4c2ac61a82
The LIBC_ALLOW_LESS_THAN_64BIT_TIME option disables a compile-time check ensuring that time_t can hold 64-bit values. This check can prevent accidental builds on targets with 32-bit time_t and the consequent 2038 issues. This option is enabled when using the native C library as i386 glibc uses 32-bit time_t. A new file, validate_libc.c, is added to lib/libc to contain this and any future libc tests. The check for CONFIG_EXTERNAL_LIBC is moved to libc/CMakeLists.txt to ensure that this new file is always compiled. Signed-off-by: Keith Packard <keithp@keithp.com>
19 lines
433 B
C
19 lines
433 B
C
/*
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* Copyright © 2025 Keith Packard <keithp@keithp.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/toolchain.h>
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/* Validate various C library implementation characteristics */
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#ifndef CONFIG_LIBC_ALLOW_LESS_THAN_64BIT_TIME
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#include <time.h>
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/*
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* Ensure that time_t can hold at least 64 bit values.
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*/
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BUILD_ASSERT(sizeof(time_t) >= 8, "time_t cannot hold 64-bit values");
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#endif
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