zephyr/lib/libc/Kconfig

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# Kconfig - C library
#
# Copyright (c) 2016 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#
menu "C Library"
depends on !NATIVE_APPLICATION
config NEWLIB_LIBC
bool
prompt "Build with newlib c library"
help
Build with newlib library. The newlib library is expected to be
part of the SDK in this case.
config NEWLIB_LIBC_ALIGNED_HEAP_SIZE
int
prompt "Newlib aligned heap size"
depends on MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT
depends on NEWLIB_LIBC
depends on USERSPACE
default 0
help
If user mode is enabled, and MPU hardware has requirements that
regions be sized to a power of two and aligned to their size,
and user mode threads need to access this heap, then this is necessary
to properly define an MPU region for the heap.
If this is left at 0, then remaining system RAM will be used for this
area and it may not be possible to program it as an MPU region.
config NEWLIB_LIBC_FLOAT_PRINTF
bool "Build with newlib float printf"
default n
depends on NEWLIB_LIBC
help
Build with floating point printf enabled. This will increase the size of
the image.
config NEWLIB_LIBC_FLOAT_SCANF
bool "Build with newlib float scanf"
default n
depends on NEWLIB_LIBC
help
Build with floating point scanf enabled. This will increase the size of
the image.
config STDOUT_CONSOLE
bool
prompt "Send stdout to console"
depends on CONSOLE_HAS_DRIVER
default n
default y if NEWLIB_LIBC
help
This option directs standard output (e.g. printf) to the console
device, rather than suppressing it entirely. See also EARLY_CONSOLE
option.
endmenu