Commit graph

21 commits

Author SHA1 Message Date
leisiji
dd86c92405 mm/umm_heap: disable KASAN for user-space heap in kernel build
When CONFIG_BUILD_KERNEL is enabled, user-space and kernel-space have
separate address spaces. User-space addresses passed via syscalls
(e.g., open) are registered by KASAN but should not be monitored,
as they are not kernel heap allocations. This causes KASAN to
report false positives on user-space pointers accessed through
system calls.

Mark the user-space heap with nokasan=true so KASAN skips checking
its address range, consistent with how rptun already handles this.

Signed-off-by: leisiji <2265215145@qq.com>
2026-07-03 07:51:11 +02:00
Bowen Wang
e686a3ac42 mm/mm_heap: use struct mm_heap_config_s to init the memory heap
To avoid add new parameters to the mm_initialize_heap() and
mm_initialize_pool()

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
2026-01-19 14:18:27 +08:00
anjiahao
6ed4ea63d8 mm: support mm_initialize_heap to specify a specific heap pointer
Support user pass it own heap struct to the mm_initialize_heap() to
avoid the heap struct is reserved from the heap range

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2026-01-19 14:18:27 +08:00
ouyangxiangzhen
17c51c0667 userspace: Exclude nuttx/arch.h
This patch fixed userspace headers conflict. Architecture-related definition and API should not be exposed to users.

Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
2024-11-01 16:59:37 +08:00
Alin Jerpelea
339457dda3 mm: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-13 08:49:05 +08:00
buxiasen
cf574fa466 mm: add mm_initialize_pool, make pool more flexible
now allow enable pool for extra heap, and disable umm/kmm pool.

Signed-off-by: buxiasen <buxiasen@xiaomi.com>
2024-06-25 16:42:06 +08:00
Gustavo Henrique Nihei
a3e253b4a3 mm: Enable a dedicated kernel heap on BUILD_FLAT via MM_KERNEL_HEAP
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
2023-01-17 10:30:00 +08:00
Masayuki Ishikawa
fb0cb6f270 mm: umm_heap: Do not register Umem if CONFIG_BUILD_KERNEL=y
Summary:
- In the case of CONFIG_BUILD_KERNEL=y, showing Kmem and Page
  info is enough for free command

Impact:
- CONFIG_BUILD_KERNEL=y only

Testing:
- Tested with sabre-6quad:netknsh

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2022-09-01 23:25:53 +02:00
chenwei23
39cdd99d77 mm: Support the kernel address sanitizer
Signed-off-by: chenwei23 <chenwei23@xiaomi.com>
2021-11-02 13:32:47 -03:00
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
Xiang Xiao
b1f711f790 mm: Move procfs_register_meminfo into common place
to avoid the code duplication and ensure the consistent behaviour

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-07-03 09:39:32 -07:00
YAMAMOTO Takashi
c25f4233aa procfs: Use procfs_register_meminfo for "Umem" 2021-02-12 03:16:03 -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
Nathan Hartman
68d43d3679 Fix typos. 2019-08-04 14:50:28 -06:00
Gregory Nutt
a2e62f557d Squashed commit of the following:
sched/init/nx_bringup.c:  Fix a naming collision.
    sched/init:  Rename os_start() to nx_start()
    sched/init:  Rename os_smp* to nx_smp*
    sched/init:  Rename os_bringup to nx_bringup
    sched/init:  rename all internal static functions to begin with nx_ vs os_
2019-02-04 16:20:35 -06:00
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Gregory Nutt
5b51a9fcdd Standardize the width of all comment boxes in C files 2015-10-02 17:43:18 -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
Renamed from mm/umm_initialize.c (Browse further)