Commit Graph

46 Commits

Author SHA1 Message Date
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
870d989d6c mm: seperate mm_pool and mm_pool init
make possible enable pool, but disabled in system heap.
also compatible for further extra heap use/not use pool.
Now use MM_HEAP_MEMPOOL_THRESHOLD -1 to indicate pool disabled.

Signed-off-by: buxiasen <buxiasen@xiaomi.com>
2024-06-23 11:09:39 +08:00
Xu Xingliang
b5f8498142 mm: check double free before adding to delaylist
If free memory is delayed, check case of double free in the first
place.

Signed-off-by: Xu Xingliang <xuxingliang@xiaomi.com>
2024-06-04 17:42:28 -03:00
chao an
feb6ede434 sched/cpu: replace up_cpu_index() to this_cpu()
In SMP mode, up_cpu_index()/this_cpu() are the same, both return the index of the physical core.
In AMP mode, up_cpu_index() will return the index of the physical core, and this_cpu() will always return 0

| #ifdef CONFIG_SMP
| #  define this_cpu()             up_cpu_index()
| #elif defined(CONFIG_AMP)
| #  define this_cpu()             (0)
| #else
| #  define this_cpu()             (0)
| #endif

Signed-off-by: chao an <anchao@lixiang.com>
2024-03-21 18:52:35 +08:00
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
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
Xiang Xiao
0fbeea64d5 mm: Remove mm_spinlock
since it's enough to protect per cpu delay list by disabling interrupt

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-11-12 11:27:38 +08:00
yinshengkai
bb5b5420ae mm: record the maximum system memory usage
Add the usmblks field to mallinfo to record the maximum space allocated historically in the system

https://man7.org/linux/man-pages/man3/mallinfo.3.html#:~:text=mmap(2).-,usmblks,-This%20field%20is

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
2023-11-09 09:08:49 +08:00
Xiang Xiao
0c805ca0a9 mm: Change global spinlock to per heap
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-10-30 11:18:34 +02:00
ligd
fe03ce5fbe mm: both use spin_lock_irqxx() when operated delaylist
align with free_delaylist()

Signed-off-by: ligd <liguiding1@xiaomi.com>
2023-10-27 22:27:15 +08:00
Xuxingliang
b9e59ad0a7 mm: add macro to judge if node/prenode is free
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
2023-09-12 22:09:36 +08:00
Xuxingliang
c9f33b7ee5 mm: use unified naming style for macros
Make all macro name starts with prefix MM_
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
2023-09-12 22:09:36 +08:00
dongjiuzhu1
36e3d32740 mm/heap: add coloration after free to detect use after free issue
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2023-09-11 15:28:34 -04:00
pengyiqiang
8c19fc547d mm_heap: check heap member in advance
Block wrong address in advance before entering mempool.

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
2023-08-07 01:06:05 -07:00
wangbowen6
b1948a1631 mm: move preceding to previous free node to reduce the overhead
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2023-02-01 11:14:02 +08:00
wangbowen6
723c6e52e2 mm: reorder the preceding and size and move MM_ALLOC_BIT to size
Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
2023-02-01 11:14:02 +08:00
anjiahao
632ed0d3a4 Optimize multipe mempool memory space usage
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-01-18 14:12:45 +08:00
anjiahao
6b530fceae mempool:change mempool_multiple way of initialization
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-01-18 14:12:45 +08:00
anjiahao
bc30b294aa mm:add heap args to mm_malloc_size
use malloc_size inside of where used mm_malloc_size

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2023-01-17 21:57:37 +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
6214f3cde7 mm/heap: Fix the minor style issue
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-01-08 01:25:18 +02:00
qinwei1
8021dfece6 sched/task/task_getpid: getpid should return process id not thread id
Summary:
   implement the right semantics:
1. getpid should return the main thread id
2. gettid should return the current thread id

Refer to:
 https://github.com/apache/incubator-nuttx/issues/2499
 https://github.com/apache/incubator-nuttx/pull/2518

Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
2022-11-17 17:58:08 +08:00
Xiang Xiao
85b4177913 mm: Remove mm_ prefix from mm_[add|free]_delaylist
follow the convention of other static mm functions

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-07 10:01:52 +01:00
Xiang Xiao
b567e09c3c mm: Restore the return type of mm_lock from bool to int
Fix the issue reported here better:
https://github.com/apache/incubator-nuttx/pull/6995

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-11-07 10:01:52 +01:00
dongjiuzhu1
579e47347e mm/mm_heap: define MM_MASK_BIT as significant bits mask
using MM_MASK_BIT to expand different bits of preceding field to store the
block status.

Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2022-10-29 00:12:02 +08:00
anjiahao
d1d46335df Replace nxsem API when used as a lock with nxmutex API
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-10-17 15:59:46 +09:00
Xiang Xiao
5253861e7e mm: Fix minor style issue
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-09-16 15:24:49 +09:00
chao.an
27c888854d mm_heap/kasan: poison free node after return back the heap list
The free node is still in use after kasan_poison(), the node member
access will cause the assert report by kasan.

|  (gdb) bt
|  #0  kasan_report (addr=1743265406637584896, size=140737337053680, is_write=46) at kasan/kasan.c:97
|  #1  0x0000555555607bdd in __asan_loadN_noabort (addr=140737272831420, size=4) at kasan/kasan.c:289
|  #2  0x0000555555607cd7 in __asan_load4_noabort (addr=140737272831420) at kasan/kasan.c:323
|  #3  0x00005555556061ef in gmtime_r (timep=0x7ffff3275dbc, result=0x7ffff3275e10) at time/lib_gmtimer.c:301
|  #4  0x000055555560e507 in sim_rtc_rdtime (lower=0x55555576b780 <g_sim_rtc>, rtctime=0x7ffff3275e10) at sim/up_rtc.c:77
|  #5  0x00005555555fcbdb in up_rtc_gettime (tp=0x7ffff3275ef0) at timers/arch_rtc.c:128
|  #6  0x00005555555f08b4 in clock_systime_timespec (ts=0x7ffff3275ef0) at clock/clock_systime_timespec.c:72
|  #7  0x00005555555ecc77 in note_common (tcb=0x7ffff31d2180, note=0x7ffff3275f80, length=21 '\025', type=18 '\022') at sched/sched_note.c:144
|  #8  0x00005555555ed706 in sched_note_syscall_enter (nr=1, argc=0) at sched/sched_note.c:765
|  #9  0x000055555560eb37 in __wrap_getpid () at wraps/WRAP_getpid.c:26
|  #10 0x0000555555608d1c in mm_takesemaphore (heap=0x7ffff30ae000) at mm_heap/mm_sem.c:127
|  #11 0x0000555555609477 in mm_free (heap=0x7ffff30ae000, mem=0x7ffff3265b80) at mm_heap/mm_free.c:89
|  #12 0x00005555556070c5 in free (mem=0x7ffff3265b80) at umm_heap/umm_free.c:49
|  #13 0x000055555560c3b0 in up_release_stack (dtcb=0x7ffff31e4b00, ttype=0 '\000') at sim/up_releasestack.c:67
|  #14 0x00005555555f2515 in nxsched_release_tcb (tcb=0x7ffff31e4b00, ttype=0 '\000') at sched/sched_releasetcb.c:134
|  #15 0x00005555556bdf0c in nxtask_terminate (pid=4, nonblocking=true) at task/task_terminate.c:184
|  #16 0x00005555556bdb0f in nxtask_exit () at task/task_exit.c:168
|  #17 0x000055555566e05f in up_exit (status=0) at sim/up_exit.c:64
|  #18 0x000055555564f454 in _exit (status=0) at task/exit.c:78
|  #19 0x000055555560ea89 in __wrap__exit (parm1=0) at wraps/WRAP__exit.c:27
|  #20 0x00005555555eb288 in exit (status=0) at stdlib/lib_exit.c:54
|  #21 0x00005555555fe2cc in nxtask_startup (entrypt=0x555555670c34 <critmon_start_main>, argc=1, argv=0x7ffff3265bb0) at sched/task_startup.c:70
|  #22 0x00005555555f02a0 in nxtask_start () at task/task_start.c:134
|  #23 0x0000000000000000 in ?? ()

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-08-02 01:45:08 +08:00
ligd
419bc2fd04 mm: handle take mm sem in IRQ
This is a fix of:
0169a51220
This is caused by wrong memory sem operation in IDLE.

Fix:
Obey the original design, don't check the IDLE in mm_takesemaphore()

Signed-off-by: ligd <liguiding1@xiaomi.com>
2022-02-21 23:41:06 +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
Xiang Xiao
5fe51b923a mm: Simplify the semaphore handling
1.Move all special process to mm_takesemaphore
2.Remove the support of recurive lock
3.Remove mm_trysemaphore function

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie216a6294ab67c5d427f31b089beb15c532f08fe
2021-07-10 16:10:32 -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
ligd
aa43a0215d mm: fix memory corruption when loop create/exit thread in SMP mode
Root casue:
when do thread exit, need add free stack operation to mm_delaylist,
but in SMP mode, CPU0 thread1 exit, at this time, CPU1 call malloc
and free mm_delaylist.

Fix:
Divide mm_delaylist for per CPU in SMP mode.

Change-Id: Ibf7d04614ea2f99fb5b506356b7346a0d94f0590
Signed-off-by: ligd <liguiding1@xiaomi.com>
2021-07-02 04:55:46 -05:00
mage1
635cfadc25 mm: Move mm_heap_s related stuff to private header file
since it will improve the modularity and reduce the inforamtion explosion

Change-Id: I085b36adb38993a979625a1f4c252d364a15afa1
2021-03-19 09:56:39 -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
Xiang Xiao
eca7059785 Refine __KERNEL__ and CONFIG_BUILD_xxx usage in the code base
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-05-01 10:43:47 -03:00
ligd
ef360394c7 mm/mm_heap: fix mm_heap not support BUILD_FLAT
1. change ifdef __KERNEL__ to:
   if defined(CONFIG_BUILD_FLAT) || defined(__KERNEL__)

2. change mm_delaylist to *mm_delaylist

3. change FAR struct mm_delaynode_s *new to:
   FAR struct mm_delaynode_s *tmp

4. should check mm_trysemaphore() return values

Change-Id: I57ba991f13c3eaf56dc2d71ac946c11669e32dfa
Signed-off-by: ligd <liguiding@fishsemi.com>
2020-04-10 07:49:32 -06:00
ligd
cbf31bca5c global change: fix tools/checkpatch.sh warnnings
Change-Id: I88cfa979c44bcaf3a8f6e036c6bfccd3402ca85a
Signed-off-by: ligd <liguiding@fishsemi.com>
2020-04-09 10:29:28 -06:00
ligd
1d2396353e mm/mm_heap: add mm_delaylist to mm_heap_s struct
Change-Id: I2ffaec5557bf2dd2021baa6cda84bb5318425caa
Signed-off-by: ligd <liguiding@fishsemi.com>
2020-04-09 10:29:28 -06:00
YAMAMOTO Takashi
46ad645efc mm: Add a bunch of assertions 2020-02-13 08:21:18 -06:00
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
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
b90da3f27b waitpid: CRITICAL BUGFIX. Add a reference counting mechansim to prevent wait from using stale memory that was freed by the exiting task 2015-12-22 11:48:17 -06:00
Gregory Nutt
06cd5b2fcc mm, audio, crypto, graphics: Fix various spacing/alignment issues 2015-10-08 09:10:22 -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
3464089542 Move core heap allocator logic from mm/. to mm/mm_heap/. 2014-09-22 10:53:50 -06:00