123 lines
3.2 KiB
Plaintext
123 lines
3.2 KiB
Plaintext
# Copyright (c) 2023 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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config COMMON_LIBC_ABORT
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bool
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help
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common implementation of abort().
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config COMMON_LIBC_ASCTIME
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bool
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help
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common implementation of asctime().
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config COMMON_LIBC_ASCTIME_R
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bool "Thread-safe version of asctime()"
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select COMMON_LIBC_ASCTIME
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help
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common implementation of asctime_r().
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config COMMON_LIBC_CTIME
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bool
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select COMMON_LIBC_LOCALTIME_R_UTC
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help
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common implementation of ctime().
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config COMMON_LIBC_CTIME_R
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bool "Thread-safe version of ctime()"
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select COMMON_LIBC_CTIME
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help
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common implementation of ctime_r().
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config COMMON_LIBC_GMTIME_R
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bool
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help
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common implementation of gmtime_r().
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config COMMON_LIBC_LOCALTIME_R_UTC
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bool
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select COMMON_LIBC_GMTIME_R
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help
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Simple implementation of localtime() & localtime_r().
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This option just wraps around the gmtime(), the result is always expressed as
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Coordinated Universal Time (UTC).
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config COMMON_LIBC_TIME
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bool
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help
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common implementation of time().
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config COMMON_LIBC_MALLOC
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bool "Common C library malloc implementation"
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select NEED_LIBC_MEM_PARTITION if COMMON_LIBC_MALLOC_ARENA_SIZE != 0
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help
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Common implementation of malloc family that uses the kernel heap
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API.
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config COMMON_LIBC_MALLOC_ARENA_SIZE
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int "Size of the common C library malloc arena"
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depends on COMMON_LIBC_MALLOC
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default 0 if MINIMAL_LIBC
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default 16384 if MMU
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default 2048 if USERSPACE && MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT
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default 16384 if ARCH_POSIX
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default -1
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help
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Indicate the size in bytes of the memory arena used for
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common C library malloc() implementation.
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If set to zero, then no malloc() heap will be available.
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If set to -1, then all remaining system RAM will be used for this
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area.
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If user mode is enabled, and MPU hardware has requirements that
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regions be sized to a power of two and aligned to their size,
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then this must be defined as a power of two or a compile error
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will result.
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When using the minimal C library, the default is to have no
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malloc heap. Otherwise, on systems with an MMU the default is
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16kB and all other systems will default to using all remaining
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ram for the malloc heap.
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config COMMON_LIBC_CALLOC
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bool "Common C library calloc"
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depends on COMMON_LIBC_MALLOC
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default n if MINIMAL_LIBC
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default y
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help
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Enable the common C library trivial implementation of calloc,
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which forwards to malloc and memset.
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config COMMON_LIBC_REALLOCARRAY
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bool "Common C library reallocarray"
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depends on COMMON_LIBC_MALLOC
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default n if MINIMAL_LIBC
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default y
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help
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Enable the common C library trivial implementation of
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reallocarray, which forwards to realloc.
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config COMMON_LIBC_STRNLEN
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bool
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help
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common implementation of strnlen().
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config COMMON_LIBC_THRD
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bool "C11 <threads.h> API support"
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depends on DYNAMIC_THREAD
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# Note: the POSIX_API dependency is only necessary until common elements
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# of C11 threads and POSIX API can be abstracted out to a common library.
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depends on POSIX_API
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default y
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help
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Common implementation of C11 <threads.h> API.
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config COMMON_LIBC_REMOVE
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bool "Common C library remove"
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depends on !SEMIHOST
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default y if FILE_SYSTEM
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help
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Common implementation of remove().
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