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