84 lines
2.7 KiB
Plaintext
84 lines
2.7 KiB
Plaintext
# Copyright (c) 2016 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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menu "OS Support Library"
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config JSON_LIBRARY
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bool "Build JSON library"
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help
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Build a minimal JSON parsing/encoding library. Used by sample
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applications such as the NATS client.
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config RING_BUFFER
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bool "Enable ring buffers"
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help
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Enable usage of ring buffers. This is similar to kernel FIFOs but ring
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buffers manage their own buffer memory and can store arbitrary data.
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For optimal performance, use buffer sizes that are a power of 2.
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config BASE64
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bool "Enable base64 encoding and decoding"
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help
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Enable base64 encoding and decoding functionality
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config SYS_HEAP_VALIDATE
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bool "Enable internal heap validity checking"
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help
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The sys_heap implementation is instrumented for extensive
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internal validation. Leave this off by default, unless
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modifying the heap code or (maybe) when running in
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environments that require sensitive detection of memory
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corruption.
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config SYS_HEAP_ALLOC_LOOPS
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int "Number of tries in the inner heap allocation loop"
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default 3
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help
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The sys_heap allocator bounds the number of tries from the
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smallest chunk level (the one that might not fit the
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requested allocation) to maintain constant time performance.
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Setting this to a high level will cause the heap to return
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more successful allocations in situations of high
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fragmentation, at the cost of potentially significant
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(linear time) searching of the free list. The default is
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three, which results in an allocator with good statistical
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properties ("most" allocations that fit will succeed) but
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keeps the maximum runtime at a tight bound so that the heap
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is useful in locked or ISR contexts.
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config PRINTK_SYNC
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bool "Serialize printk() calls"
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default y if SMP && MP_NUM_CPUS > 1
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help
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When true, a spinlock will be taken around the output from a
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single printk() call, preventing the output data from
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interleaving with concurrent usage from another CPU or an
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preempting interrupt.
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config MPSC_PBUF
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bool "Multi producer, single consumer packet buffer"
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select TIMEOUT_64BIT
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help
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Enable usage of mpsc packet buffer. Packet buffer is capable of
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storing variable length packets in a circular way and operate directly
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on the buffer memory.
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if MPSC_PBUF
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config MPSC_CLEAR_ALLOCATED
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bool "Clear allocated packet"
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help
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When enabled packet space is zeroed before returning from allocation.
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endif
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config REBOOT
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bool "Reboot functionality"
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select SYSTEM_CLOCK_DISABLE
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help
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Enable the sys_reboot() API. Enabling this can drag in other subsystems
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needed to perform a "safe" reboot (e.g. SYSTEM_CLOCK_DISABLE, to stop the
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system clock before issuing a reset).
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rsource "Kconfig.cbprintf"
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endmenu
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