123456789101112131415161718192021222324252627 |
- #
- # For a description of the syntax of this configuration file,
- # see the file kconfig-language.txt in the NuttX tools repository.
- #
- config FS_RAMMAP
- bool "File mapping emulation"
- default n
- ---help---
- NuttX operates in a flat open address space and is focused on MCUs that do
- support Memory Management Units (MMUs). Therefore, NuttX generally does not
- require mmap() functionality and the MCUs generally cannot support true
- memory-mapped files.
- However, memory mapping of files is the mechanism used by NXFLAT, the NuttX
- tiny binary format, to get files into memory in order to execute them.
- mmap() support is therefore required to support NXFLAT.
- If FS_RAMMAP is defined in the configuration, then mmap() will
- support simulation of memory mapped files by copying files whole
- into RAM. These copied files have some of the properties of
- standard memory mapped files.
- See nuttx/fs/mmap/README.txt for additional information.
- if FS_RAMMAP
- endif
|