87 lines
2.4 KiB
Plaintext
87 lines
2.4 KiB
Plaintext
# Kconfig - C library
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#
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# Copyright (c) 2016 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menu "C Library"
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depends on !NATIVE_APPLICATION
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config NEWLIB_LIBC
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bool "Build with newlib c library"
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depends on !X86_64
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help
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Build with newlib library. The newlib library is expected to be
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part of the SDK in this case.
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if "$(ZEPHYR_TOOLCHAIN_VARIANT)" = "gnuarmemb"
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config NEWLIB_LIBC_NANO
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bool "Build with newlib-nano c library"
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depends on NEWLIB_LIBC
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help
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Build with newlib-nano library, for small embedded apps.
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The newlib-nano library for ARM embedded processors is a part of the
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GNU Tools for ARM Embedded Processors.
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endif
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config NEWLIB_LIBC_ALIGNED_HEAP_SIZE
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int "Newlib aligned heap size"
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depends on MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT
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depends on NEWLIB_LIBC
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depends on USERSPACE
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default 0
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help
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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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and user mode threads need to access this heap, then this is necessary
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to properly define an MPU region for the heap.
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If this is left at 0, then remaining system RAM will be used for this
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area and it may not be possible to program it as an MPU region.
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config NEWLIB_LIBC_FLOAT_PRINTF
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bool "Build with newlib float printf"
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depends on NEWLIB_LIBC
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help
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Build with floating point printf enabled. This will increase the size of
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the image.
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config NEWLIB_LIBC_FLOAT_SCANF
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bool "Build with newlib float scanf"
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depends on NEWLIB_LIBC
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help
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Build with floating point scanf enabled. This will increase the size of
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the image.
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config STDOUT_CONSOLE
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bool "Send stdout to console"
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depends on CONSOLE_HAS_DRIVER
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default y
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help
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This option directs standard output (e.g. printf) to the console
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device, rather than suppressing it entirely. See also EARLY_CONSOLE
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option.
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# Minimal libc options
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config MINIMAL_LIBC_MALLOC_ARENA_SIZE
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int "Size of the minimal libc malloc arena"
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depends on !NEWLIB_LIBC
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default 0
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help
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Indicate the size of the memory arena used for minimal libc's
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malloc() implementation. This size value must be compatible with
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a sys_mem_pool definition with nmax of 1 and minsz of 16.
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config MINIMAL_LIBC_LL_PRINTF
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bool "Build with minimal libc long long printf" if !64BIT
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depends on !NEWLIB_LIBC
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default y if 64BIT
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help
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Build with long long printf enabled. This will increase the size of
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the image.
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endmenu
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