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9 Commits

Author SHA1 Message Date
Xiang Xiao
187538c0b9 Move aligned_alloc, posix_memalign and valloc from mm/umm to libs/libc/stdlib 
since the similar functions(e.g. strdup/strndup) put into libs/libc/string

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ifb2c0c51298b09014748e5ee8275db51213d6911
 2021-07-01 11:44:38 -07:00
Xiang Xiao
e14c458747 mm/heap: Move semaphore related declaration to private header 
since other subsystem doesn't need call these function anymore

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Idfb217c412db62d9f17f427310b75bb78785dc50
 2021-03-22 15:35:32 +01:00
ligd
1d66d5c297 debug tools: add heap & stack check in idle thread 
N/A

Change-Id: Iba6f5cdffb1336697096c71fca86c9ece584225f
Signed-off-by: ligd <liguiding1@xiaomi.com>
 2021-03-04 18:38:05 -08:00
Jiuzhu Dong
fecc68d1bb mm/umm_heap: move memory-related api from libc/stdlib to umm 
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) 
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 
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. 
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