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122 lines
3.2 KiB
122 lines
3.2 KiB
# 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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