# source/mm/lm.cfg # # MIT License # # Copyright(c) 2023-present All contributors of SGL # Document reference link: https://sgl-docs.readthedocs.io # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. # # Memory management # Description: # - tlsf # A dynamic, fragmentation-resistant allocator designed for real-time and embedded systems # (e.g., RTOS, MCUs with moderate RAM). It balances speed, memory utilization, and low fragmentation. # # - lwmem # A lightweight, MCU-optimized allocator (developed for embedded systems) that prioritizes minimal # resource usage (RAM/ROM) while supporting basic dynamic allocation/deallocation. # # - bump # The simplest and fastest memory allocator, often called a "linear allocator" or "stack allocator" # (though not to be confused with the program stack). It manages a single contiguous block of # memory (a memory pool) with a single pointer (offset) that "bumps forward" to allocate memory. # # - other # Other memory allocation algorithms, you can implement your own memory allocation algorithm. # If you want to use dynamic memory allocation algorithm, you can consider it as an option CONFIG_SGL_HEAP_ALGO choices = tlsf, lwmem, bump, other default = lwmem CONFIG_SGL_FL_INDEX_MAX choices = [10, 31] depends = CONFIG_SGL_HEAP_ALGO default = 20 # Memory size is Byte CONFIG_SGL_HEAP_MEMORY_SIZE choices = [1, 10000000] depends = CONFIG_SGL_HEAP_ALGO default = 10240 SRC-$(CONFIG_SGL_HEAP_ALGO == tlsf) += tlsf/tlsf.c tlsf/sgl_mm.c SRC-$(CONFIG_SGL_HEAP_ALGO == lwmem) += lwmem/lwmem.c lwmem/sgl_mm.c SRC-$(CONFIG_SGL_HEAP_ALGO == bump) += bump/sgl_mm.c SRC-$(CONFIG_SGL_HEAP_ALGO == other) += other/sgl_mm.c