Commit Graph

72 Commits

Author SHA1 Message Date
wangmingrong
d2fd043575 mm: Using Macros Instead of Memory to Fill Labels
Signed-off-by: wangmingrong <wangmingrong@xiaomi.com>
2024-03-14 22:48:19 +08:00
Yanfeng Liu
5ac401d941 mm/kconfig: fix typo in MM_DEFAULT_ALIGNMENT
This fixes minor typo in MM_DEFAULT_ALIGNMENT

Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
2024-03-11 13:12:34 +08:00
Nathan Hartman
3ed629274e mm: Fix some typos 2023-11-24 09:57:10 -08:00
Xu Xingliang
6e7115ca09 mm: free delay list when exceeding specified count
Signed-off-by: Xu Xingliang <xuxingliang@xiaomi.com>
2023-11-15 12:05:20 +01:00
Ville Juven
8a2d3958e9 mm/kmap: Fix bad dependency to ARCH_VMA_MAPPING
kmap does not need ARCH_VMA_MAPPING => remove the dependency
2023-11-02 15:10:57 +02:00
Xu Xingliang
a2df576ecf kasan: add option to disable read/write checks
Signed-off-by: Xu Xingliang <xuxingliang@xiaomi.com>
2023-09-07 00:41:43 +08:00
fangxinyong
43b0421b2a mm/map: limit the count of memory mapping for the task
No memory map count limit that will exhaust memory and cause
the system hang. Also that fix pass LTP posix case mmap/24-1.c

Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
2023-08-02 22:57:28 -07:00
wangbowen6
2dedaa449b mm: use shced_backtrace and skip the first numbers in mm backatrace
beacause the first numbers backtrace in mm node is same, skip them to
show more useful backtrace.

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2023-07-31 05:46:37 -07:00
Xiang Xiao
abfe082a6f Kconfig: Simplify the conditional default statement
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-16 14:39:20 -03:00
anjiahao
6572081e07 mempool:Allocate a chunk for multiple mempool avoid memory fragmentation
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-06-08 23:56:40 +08:00
Ville Juven
0476e30a6d mm/kmm_map: Add support to dynamically map pages into kernel virtual memory
This adds functionality to map pages dynamically into kernel virtual
memory. This allows implementing I/O remap for example, which is a useful
(future) feature.

Now, the first target is to support mapping user pages for the kernel.

Why? There are some userspace structures that might be needed when the
userspace process is not running. Semaphores are one such example. Signals
and the WDT timeout both need access to the user semaphore to work
properly. Even though for this only obtaining the kernel addressable
page pool virtual address is needed, for completeness a procedure is
provided to map several pages.
2023-06-02 10:50:26 +08:00
yinshengkai
aad2f97587 mm: Dump all memory blocks on allocation failure
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
2023-05-31 15:24:25 +08:00
wangbowen6
3e971d2e6d mm_heap: double malloced memory default alignment (4 -> 8, 8 -> 16)
Base on the gnu libc standard:
https://www.gnu.org/software/libc/manual/html_node/Aligned-Memory-Blocks.html

Change the default memory aligment to 8 bytes for 32-bit system and
16 bytes for 64-bit system.

Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2023-03-06 11:27:43 +01:00
wangbowen6
70083168f1 mm: support custom the mm alignment and default to be 8
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2023-03-06 11:10:36 +08:00
anjiahao
d846004533 mempool:use two-dimensional array avoid competition
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-01-18 09:02:33 +01:00
anjiahao
632ed0d3a4 Optimize multipe mempool memory space usage
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-01-18 14:12:45 +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
dongjiuzhu1
c82f44c4f3 mm/mm_heap: add mempool to optimize small block performance
There are many small memory block in NuttX system, eg: struct tcb_s,
struct inode, etc, and several disadvantages about them:
1.Their frequent allocate and free cause the system memory fragmentation.
2.Since each memory block has an overhead, the utilization of small memory
blocks is relatively low, which will cause memory waste.

So we can use mempool to alloc smallo block, to improve alloc speed
and utilization, to reduce fragmentation.

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2023-01-16 20:32:17 +08:00
Xiang Xiao
a6428f4c27 mm: Integrate TLSF manager
can be enabled by CONFIG_MM_TLSF_MANAGER=y

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-01-15 03:43:37 +08:00
Jukka Laitinen
70de321de3 arch/Kconfig: remove virtual memory allocator dependency from MM_SHM
The dependency should be vice versa; the MM_SHM should depend on the
existence of the virtual memory range allocator.

Create a new CONFIG flag CONFIG_ARCH_VMA_MAPPING, which will define that
there is a virtual memory range allocator. Make MM_SHM select that flag

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
2023-01-13 02:20:13 +08:00
Xiang Xiao
800fac05d9 mm: Change the default of MM_UBSAN_TRAP_ON_ERROR to n
let's give more information by default

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-12-06 19:01:25 +08:00
Xiang Xiao
33dabe3c38 sim: Always enable full UBSan feature to catch more error
since the resource is plenty on simulator

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-08 10:18:27 -03:00
Xiang Xiao
d6b5a345a4 mm: Let MM_SMALL and MM_REGIONS depend on MM_DEFAULT_MANAGER
since these options are coupled with the default heap implementation

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-08 10:18:27 -03:00
Xiang Xiao
38d1244751 mm/mempool: Remove MM_MEMPOOL option from Kconfig
since the linker can remove the unused object file from the final image

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-08 10:18:27 -03:00
Xiang Xiao
a446b5816f mm/circbuf: Remove MM_CIRCBUF option from Kconfig
since the linker can remove the unused object file from the final image

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-08 10:18:27 -03:00
Xiang Xiao
b9a4bedc7f fs/procfs: Change FS_PROCFS_EXCLUDE_xxx default value to DEFAULT_SMALL
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-10-18 15:10:26 +09:00
Xiang Xiao
8a265e274d Kconfig: Remove EXPERIMENTAL for features which is been around a long time
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-09-19 11:39:22 -03:00
chao an
afaaa780eb mm/ubsan: UBSan option should be turned on if SIM_UBSAN enabled
Signed-off-by: chao an <anchao@xiaomi.com>
2022-09-19 18:36:39 +08:00
Huang Qi
274c085c4a UBSan: Minor typo fix to align with other place
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-09-02 19:07:09 +08:00
Huang Qi
32a21a1b67 UBSan: Allow custom the sanitizer in Kconfig
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-09-02 19:07:09 +08:00
Xiang Xiao
f1355680ca mm/kasan: Add MM_KASAN_ALL option
so the user could disable the full image instrumentation,
but enable the instrumentation by files or directories.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-08-23 17:50:52 +02:00
Huang Qi
a06ec54cd0 debug: Introduce portion of UBSan
without UBSan
```
 text    data     bss     dec     hex filename
  85612     208  142258  228078   37aee nuttx
```

with UBSan:
```
   text    data     bss     dec     hex filename
 194290   98164  208634  501088   7a560 nuttx
```

```c
int main(int argc, FAR char *argv[])
{
  uint32_t ptr[32];
  printf("Hello, World!! %lu\n", ptr[64]);
  return 0;
}
```
Try to run this sample:
```
nsh> hello
ubsan_prologue: ================================================================================
ubsan_prologue: UBSAN: array-index-out-of-bounds in hello_main.c:39:37
__ubsan_handle_out_of_bounds: index 64 is out of range for type 'uint32_t [32]'
ubsan_epilogue: ================================================================================
Hello, World!! 1070182368
nsh>
```

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-08-22 13:57:29 +08:00
Jiuzhu Dong
c18b5602e8 fs/procfs: add mempool info to proc/mempool
server> cat /proc/mempool
                   total    bsize    nused    nfree   nifree  nwaiter
       hello:        400       20       17        3        0        0

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-08-09 15:38:57 +08:00
Jiuzhu Dong
e3bbbfe4d0 mm/mempool: support memory buffer pool
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-08-09 15:38:57 +08:00
Jiuzhu Dong
9899dd0ec0 mm/mm_heap: change CONFIG_MM_BACKTRACE to int type
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-07-26 23:45:31 +08:00
YAMAMOTO Takashi
5edf5e5585 mm: Add CONFIG_MM_PANIC_ON_FAILURE option
While allocation failure here is not necessarily abnormal enough to
warrant a panic in general, it can be useful in certain situations.
2022-05-21 14:28:41 +08:00
YAMAMOTO Takashi
b05320cac2 mm: Move backtrace stuff into a separate option
The functionality has too much overhead for CONFIG_DEBUG_MM.
2022-05-21 14:28:41 +08:00
YAMAMOTO Takashi
c546c0b647 mm: Do not abort on allocation failue with CONFIG_DEBUG_MM
When allocation failed, it isn't too uncommon for the caller
to fall back to other allocation method.
(eg. esp32 textheap code tries iram heap when an allocation from rtc heap
failed.)
DEBUGASSERT(false) is too much in that case.

This commit removes the DEBUGASSERT, and also makes the heap dump
a separate option.
2022-05-21 14:28:41 +08:00
Jiuzhu Dong
1ab58aff55 mm/heap: add MM_BACKTRACE_DEFAULT to config backtrace record by default
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-03-27 13:21:48 +08:00
chenwei23
39cdd99d77 mm: Support the kernel address sanitizer
Signed-off-by: chenwei23 <chenwei23@xiaomi.com>
2021-11-02 13:32:47 -03:00
Masanari Iida
b64e9050c4 mm: Fix a typo in Kconfig
This patch fixes a spelling typo in mm/Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
2021-07-30 01:31:01 -07:00
mage1
874ecbe2f3 mm: add kconfig option to control the memory manger strategy choice.
since will will porvide more the one  strategy in future.

Change-Id: I73b900c6571f9b71b8239dd72006bdd0a68ee64d
2021-03-19 09:56:39 -07:00
dongjiuzhu
23ddeaf3be mm/circbuf: support circular buffer managerment
N/A

Change-Id: Ib1fc009b9ce3af5815920f22221fe8a7262299ef
Signed-off-by: dongjiuzhu <dongjiuzhu1@xiaomi.com>
2020-11-20 05:33:03 -08:00
Xiang Xiao
ddda00ea65 Kconfig: Refine BUILD_FLAT, BUILD_PROTECTED and BUILD_KERNEL usage
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-04-29 12:16:18 -06:00
YAMAMOTO Takashi
e2ce8d5169 Fix a typo in Kconfig description 2020-02-12 12:01:18 +08:00
Petteri Aimonen
fe0532c226 Merged in paimonen/nuttx/pullreq_libc_libnx_updates (pull request #757)
Pullreq libc libnx updates

* NuttX: make strerror() return 'Success' for 0

* NuttX: fix strrchr() so that it considers null terminator as part of string

    From strrchr(3) man page:
    "The terminating null byte is considered part of the string, so that if c
    is specified as '\0', these functions return a pointer to the terminator."

* NuttX: mm_free(): Add DEBUGASSERT()'s to catch memory corruption early.

    It's easier to find the source when asserts fail already when freeing
    an overflowed buffer, than if the corruption is only detected on next
    malloc().

* MM_FILL_ALLOCATIONS: Add debug option to fill all mallocs()

    This is helpful for detecting uninitialized variables,
    especially in C++ code. I seem to be forgetting to initialize
    member variables and then they just get random values..

* NuttX: nxtk_bitmapwindow: Fix warning message when bitmap is fully off-screen.

* nxfonts_getfont: Avoid unnecessary warnings for other whitespace chars also.

* NuttX: Fix kerning of 'I' in Sans17x22 font

    The I character was running together with some other
    characters, e.g. in sequence "IMI".

* NXMU: Revalidate window pointer for mouse events.

    NXMU caches the previous window pointer so that further mouse
    events can be sent to the same window. However, if the window
    is destroyed while mouse button is held down, the pointer may
    become invalid and cause a crash. This patch revalidates the
    pointer before using it.

Approved-by: GregoryN <gnutt@nuttx.org>
2018-11-12 15:36:35 +00:00
Alan Carvalho de Assis
283b73edc5 Fix lots of typos in C comments and Kconfig help text 2018-07-08 18:24:45 -06:00
Gregory Nutt
62b8026976 Remove CONFIG_GRAN_SINGLE. It adds no technical benefit (other than some minor reduction in the number of interface arguments) but adds a lot of code complexity. Better without it. 2017-11-14 11:47:12 -06:00
Gregory Nutt
2043e1a114 IOBs: Move from driver/iob to a better location in mm/iob 2017-05-09 07:35:30 -06:00
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00