| # Copyright (c) 2024 BayLibre SAS |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menu "POSIX memory" |
| |
| config POSIX_PAGE_SIZE |
| hex |
| # TODO: something similar and arch-independent for MPUs |
| default MMU_PAGE_SIZE if MMU |
| default 0x40 |
| help |
| This option is not user-configurable. |
| |
| config POSIX_SHARED_MEMORY_OBJECTS |
| bool "POSIX shared memory objects [EXPERIMENTAL]" |
| select EXPERIMENTAL |
| select SYS_HASH_FUNC32 |
| select SYS_HASH_FUNC32_DJB2 |
| select FDTABLE |
| select POSIX_MAPPED_FILES |
| help |
| Select 'y' here and Zephyr will provide implementations of shm_open() and shm_unlink(). |
| |
| For more information, please see |
| https://pubs.opengroup.org/onlinepubs/9699919799.orig/functions/V2_chap02.html |
| https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_port.html#tag_24_03_04 |
| |
| config POSIX_MAPPED_FILES |
| bool "POSIX memory-mapped files [EXPERIMENTAL]" |
| select EXPERIMENTAL |
| imply MMU |
| help |
| Select 'y' here and Zephyr will provide support for mmap(), msync(), and munmap(). |
| |
| For more information, please see |
| https://pubs.opengroup.org/onlinepubs/9699919799.orig/functions/V2_chap02.html |
| https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_port.html#tag_24_03_04 |
| |
| if POSIX_MAPPED_FILES |
| |
| config POSIX_MEMLOCK |
| bool "POSIX memory locking [EXPERIMENTAL]" |
| select EXPERIMENTAL |
| help |
| Select 'y' here and Zephyr will provide support for mlockall() and munlockall(). |
| |
| For more information, please see |
| https://pubs.opengroup.org/onlinepubs/9699919799.orig/functions/V2_chap02.html |
| https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_port.html#tag_24_03_04 |
| |
| config POSIX_MEMLOCK_RANGE |
| bool "POSIX range memory locking [EXPERIMENTAL]" |
| select EXPERIMENTAL |
| imply MMU |
| imply DEMAND_PAGING |
| help |
| Select 'y' here and Zephyr will provide support for mlock() and munlock(). |
| |
| For more information, please see |
| https://pubs.opengroup.org/onlinepubs/9699919799.orig/functions/V2_chap02.html |
| https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_port.html#tag_24_03_04 |
| |
| endif |
| |
| config POSIX_MEMORY_PROTECTION |
| bool "POSIX memory protection [EXPERIMENTAL]" |
| select EXPERIMENTAL |
| help |
| Select 'y' here and Zephyr will provide support for mprotect(). |
| |
| For more information, please see |
| https://pubs.opengroup.org/onlinepubs/9699919799.orig/functions/V2_chap02.html |
| https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_port.html#tag_24_03_04 |
| |
| endmenu |
