68 lines
2.2 KiB
Plaintext
68 lines
2.2 KiB
Plaintext
|
# Copyright (c) 2016 Intel Corporation
|
||
|
|
# SPDX-License-Identifier: Apache-2.0
|
||
|
|
|
||
|
|
if NEWLIB_LIBC
|
||
|
|
|
||
|
|
config NEWLIB_LIBC_NANO
|
||
|
|
bool "Build with newlib-nano C library"
|
||
|
|
depends on HAS_NEWLIB_LIBC_NANO
|
||
|
|
help
|
||
|
|
Build with newlib-nano library, for small embedded apps.
|
||
|
|
The newlib-nano library for ARM embedded processors is a part of the
|
||
|
|
GNU Tools for ARM Embedded Processors.
|
||
|
|
|
||
|
|
config NEWLIB_LIBC_MAX_MAPPED_REGION_SIZE
|
||
|
|
int "Maximum memory mapped for newlib heap"
|
||
|
|
depends on MMU
|
||
|
|
default 1048576
|
||
|
|
help
|
||
|
|
On MMU-based systems, indicates the maximum amount of memory which
|
||
|
|
will be used for the newlib malloc() heap. The actual amount of
|
||
|
|
memory used will be the minimum of this value and the amount of
|
||
|
|
free physical memory at kernel boot.
|
||
|
|
|
||
|
|
config NEWLIB_LIBC_MIN_REQUIRED_HEAP_SIZE
|
||
|
|
int "Newlib minimum required heap size"
|
||
|
|
default 2048 if NEWLIB_LIBC_NANO
|
||
|
|
default 8192 if !NEWLIB_LIBC_NANO
|
||
|
|
help
|
||
|
|
Specifies the amount of memory space that must be available for the
|
||
|
|
newlib heap. An assertion failure message will be displayed during
|
||
|
|
initialization if the memory space available for the newlib heap is
|
||
|
|
smaller than this value.
|
||
|
|
|
||
|
|
config NEWLIB_LIBC_ALIGNED_HEAP_SIZE
|
||
|
|
int "Newlib aligned heap size"
|
||
|
|
depends on MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT
|
||
|
|
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"
|
||
|
|
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"
|
||
|
|
help
|
||
|
|
Build with floating point scanf enabled. This will increase the size of
|
||
|
|
the image.
|
||
|
|
|
||
|
|
config NEWLIB_LIBC_HEAP_LISTENER
|
||
|
|
bool "Notify heap listeners of newlib libc heap events"
|
||
|
|
select HEAP_LISTENER
|
||
|
|
help
|
||
|
|
Notify registered heap listeners upon certain events related to the newlib
|
||
|
|
libc heap usage, such as the heap resize.
|
||
|
|
|
||
|
|
endif # NEWLIB_LIBC
|