7 Commits

Author	SHA1	Message	Date
Xiang Xiao	76cdd5c329	mm: Remove mm_heap_impl_s struct ... it's more simple to make mm_heap_s opaque outside of mm Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com> Change-Id: I5c8e435f6baba6d22b10c5f7e8d9191104fb5af2	2021-07-07 04:25:15 -07:00
Alin Jerpelea	bcee9c391c	mm: Author Gregory Nutt: update licenses to Apache ... Gregory Nutt has submitted the SGA and we can mograte the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>	2021-02-09 01:21:53 -08:00
Gregory Nutt	90e4cf4349	mm/umm_heap: sbrk() is only available in the KERNEL build.	2019-02-04 10:32:31 -06:00
Xiang Xiao	2671709e62	mm/umm_heap: Ensure all user allocation try sbrk before fail	2019-01-26 10:42:36 -06:00
Gregory Nutt	59cc4a7a7b	Protected mode: Redesign how the user space heap is accessed from the kernel code. It used to call memory management functions in user space via function pointers in the userspace interface. That is inefficient because the first thing that those memory management functions do is to trap back into the kernel to get the current PID. Worse, that operation can be fatal is certain fragile situations such as when a task is exitting. ... The solution is to remove all of the memory management function calls from the interface. Instead, the interface exports the userspace heap structure and then kernel size implementations of those memory management functions will operate on the userspace heap structure. This avoids the unnecessary system calls and, more importantly, failures do to freeing memory when a test exits.	2015-07-10 08:37:02 -06:00
Gregory Nutt	b33c2d9cef	Move include/nuttx/mm.h to include/nuttx/mm/mm.h	2014-09-24 07:29:09 -06:00
Gregory Nutt	8b8c134efa	Move the user heap allocator front-end from mm/. to mm/umm_heap/.	2014-09-22 10:48:58 -06:00