#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#

config FS_SHMFS
	bool "Shared memory support"
	default n
	select ARCH_VMA_MAPPING if BUILD_KERNEL
	---help---
		Include support for shm_open() and shm_close.

if FS_SHMFS

config FS_SHMFS_VFS_PATH
	string "Path to shared memory object storage"
	default "/var/shm"
	---help---
		The path to where shared memory objects will exist in the VFS
		namespace.

config FS_SHMFS_NO_ALIGN
	bool "Skip cache-line alignment/padding of shm objects"
	default n
	---help---
		Skip cache-line alignment of the shm object metadata header and
		the object length. Saves RAM in FLAT builds where shm objects
		are never used as DMA targets and no cache maintenance is
		performed on their contents. Callers that need DMA-safe shm
		buffers must not enable this.

endif # FS_SHMFS