Jiuzhu Dong
fecc68d1bb
mm/umm_heap: move memory-related api from libc/stdlib to umm
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Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-02-26 11:47:11 -08:00
Jiuzhu Dong
355956fb57
umm_heap/valloc: support valloc (LEGACY)
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Reference:
https://pubs.opengroup.org/onlinepubs/7908799/xsh/valloc.html
Change-Id: Ieb425a77b0a8d758956996d201223a0050ae4920
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-02-26 11:47:11 -08:00
Alin Jerpelea
bcee9c391c
mm: Author Gregory Nutt: update licenses to Apache
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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
Xiang Xiao
86eef8ce3a
mm/: add mm_heapmember function and reimplement kmm_heapmember base on mm_heapmember since this function is very useful if multiple heaps exist.
2018-08-23 09:38:49 -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.
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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
8b8c134efa
Move the user heap allocator front-end from mm/. to mm/umm_heap/.
2014-09-22 10:48:58 -06:00
