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82 Commits

Author SHA1 Message Date
chao an
fb9b41221d semantic/parser: fix compile warning found by sparse 
Reference:
https://linux.die.net/man/1/sparse

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-05-30 23:00:00 +08:00
Ville Juven
53d4b9ed54 mm/mm_map: Give the mm_map as parameter to the mm_map functions 
This way the mappings can be modified for any vm area, not only the
process that is running.

Why? This allows mapping pages to kernel dynamically, this functionality
will be presented later.
 2023-04-22 00:40:37 +08:00
zhangyuan21
c239d19df0 nuttx: add more dependent header file 
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
 2023-04-11 09:13:32 +03:00
dongjiuzhu1
f8b27d9fbe fs/mmap: try rammap when filesystem mmap don't support 
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
 2023-03-10 10:43:33 +02:00
Xiang Xiao
f8d33e40ac Fix mmap/fs_mmap.c:259:13: warning: 'mapped' may be used uninitialized in this function [-Wmaybe-uninitialized] 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-18 08:40:33 +01:00
chao an
3d7629a02c fs/mmap: fix compile warning if set the optimize level to O3 
| $ gcc -c "-O3" -Wall -isystem include -D__NuttX__ -D__KERNEL__ -I fs -I sched fs/mmap/fs_mmap.c -o fs_mmap.o
| include/sys/mman.h: In function ‘mmap’:
| fs/mmap/fs_mmap.c:259:13: warning: ‘mapped’ may be used uninitialized in this function [-Wmaybe-uninitialized]
|   259 |   FAR void *mapped;
|       |             ^~~~~~

Signed-off-by: chao an <anchao@xiaomi.com>
 2023-01-17 21:56:37 +08:00
Xuxingliang
9166eeddf6 fs/mmap: update mapped var before exit 
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
 2023-01-17 11:12:26 +08:00
Xuxingliang
dce315005a fs/mmap: rammap should return buffer start address 
Signed-off-by: Xuxingliang <xuxingliang@xiaomi.com>
 2023-01-17 11:12:26 +08:00
Jukka Laitinen
6db295481b fs/mmap/fs_rammap.c: Remove void * arithmetic 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-13 23:08:58 +08:00
Jukka Laitinen
3577d2f055 fs/mmap/fs_anonmap.c: Remove void * arithmetic 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-13 23:08:58 +08:00
Xiang Xiao
fd0195b0d8 fs/mmap: Suppor the partial unmap for anonymous mapping 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-12 19:11:56 +02:00
Xiang Xiao
fcd4a421e3 fs/mmap: Support the no backing file for anonymous mapping 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-12 19:11:56 +02:00
Xiang Xiao
ab67d6a75b fs/mmap: Remove the duplication rammap handling 
and minor ifx for style and format

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-12 19:11:56 +02:00
Jukka Laitinen
b8f23fc3f7 Move rammaps to use mm_map list 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Jukka Laitinen
a5ed8014e8 Move anonymous mapping emulation into own module under fs/mmap 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Jukka Laitinen
dd97900221 fs/mmap: Add mappings to mm_map list if CONFIG_MM_MAP is defined 
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-10 18:34:25 +08:00
Xiang Xiao
1a59f4ed00 mm/map: Remove the unnessary map.h inclusion in various drivers 
and Fix include/nuttx/mm/map.h:55:28: error: 'struct task_group_s' declared inside parameter list will not be visible outside of this definition or declaration

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2023-01-05 16:06:53 +02:00
Jukka Laitinen
f33dc4df3f Change FIOC_MMAP into file operation call 
- Add mmap into file_operations and remove it from ioctl definitions.
- Add mm_map structure definitions to support future unmapping
- Modify all drivers to initialize the operations struct accordingly

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
 2023-01-02 11:23:20 -03:00
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
Petro Karashchenko
8d3bf05fd2 include: fix double include pre-processor guards 
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
 2022-01-16 11:11:14 -03:00
Alan C. Assis
9d79f82e24 mmap: Fix note: initialize the variable 'ret' 2021-08-10 09:08:25 -07:00
Xiang Xiao
1f3a8b5adf Fix mmap compiler error when CONFIG_FS_RAMMAP equals y 
fs_munmap.c:122:15: error: ‘struct fs_rammap_s’ has no member named ‘kernel’
fs_rammap.c:110:52: error: expected ‘:’ before ‘;’ token

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-07-13 14:39:14 -03:00
Xiang Xiao
8612af4ae5 fs: Implement file_mmap and file_munmap API 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-07-06 11:18:13 +09:00
Xiang Xiao
2b0b298ab6 fs/mmap: Remove rammap_initialize declaration 
Forget in patch:
commit ec30d6ef6b
Author: Xiang Xiao <xiaoxiang@xiaomi.com>
Date:   Thu Jun 24 01:42:11 2021 +0800

    fs: Initialize fs_allmaps_s::exclsem in declaration directly

    and then remove rammap_initialize and caller

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-07-06 11:18:13 +09:00
Xiang Xiao
06215be327 mmap: Implement the minial but reasonable mlock/munlock/mprotect 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I538e0d78ecd0680374a2e0f56adbc61d7a4e6d1f
 2021-07-01 08:06:54 +09:00
Xiang Xiao
ec30d6ef6b fs: Initialize fs_allmaps_s::exclsem in declaration directly 
and then remove rammap_initialize and caller

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ife9f04d409b3a14a3be4bbb61c23da6e7a9f8a3d
 2021-07-01 08:06:54 +09:00
Gustavo Henrique Nihei
c80cdf06c2 fs/mmap: Return EACCES for incompatible file descriptors 2021-03-16 10:17:07 -07:00
Gustavo Henrique Nihei
ecb9e03a7f fs/mmap: Update mmap documentation of possible return values 2021-03-15 20:02:52 -07:00
Gustavo Henrique Nihei
00d9f81919 fs/mmap: Clarify MAP_PRIVATE dependency on CONFIG_FS_RAMMAP 2021-03-15 20:02:52 -07:00
Gustavo Henrique Nihei
330eff36d7 sourcefiles: Fix relative path in file header 2021-03-09 23:18:28 +08:00
Xiang Xiao
9473434587 Ensure the kernel component don't call userspace API 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-03-01 09:23:09 +09:00
Alin Jerpelea
f9fb182809 Author: Gregory Nutt: update licenses to Apache 
Update files from Gregory Nutt to Apache 2.0 license.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-02-05 12:15:56 -03:00
Alin Jerpelea
a544c3f499 fs: nxffs: nxstyle error fix 
Fix nxstyle errors to pass CI

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-02-05 12:15:56 -03:00
Xiang Xiao
0dc6990166 Fix nxstyle warning 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-01-13 08:57:58 +01:00
Xiang Xiao
0536953ded Kernel module should prefer functions with nx/kmm prefix 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-01-13 08:57:58 +01:00
YAMAMOTO Takashi
bc9e28eb35 fs/mmap/fs_mmap.c: Fix a syslog format error 2020-11-20 22:22:53 -08:00
Xiang Xiao
eb4121ce38 Change all 'Nuttx' to 'NuttX' 
Unify the naming convention

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-10-20 01:45:06 -07:00
chao.an
9241725312 fs/munmap: export the symbols to avoid build break on C++ syntax 
base/metrics/persistent_memory_allocator.cc:1009:18: error: expected id-expression before ‘-’ token
 1009 |   int result = ::munmap(memory, size);
      |                  ^~~~~~

Change-Id: I24e55c18d09553d3acc341a27063d01489d905ec
Signed-off-by: chao.an <anchao@xiaomi.com>
 2020-09-18 20:05:10 -07:00
Xiang Xiao
23668a4b9b build: Remove the empty variable assignment 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-05-24 08:24:13 -06:00
Xiang Xiao
bd4e8e19d3 Run codespell -w against all files 
and fix the wrong correction
 2020-02-22 14:45:07 -06:00
Xiang Xiao
5c80b94820 Replace #include <semaphore.h> to #include <nuttx/semaphore.h> 
Since the kernel side should call nxsem_xxx instead and remove the unused inclusion
 2020-02-01 08:27:30 -06:00
Xiang Xiao
68951e8d72 Remove exra whitespace from files (#189) 
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
 2020-01-31 09:24:49 -06:00
Xiang Xiao
b7b85251cf fs/mmap/fs_munmap.c: Fix 'warning: variable 'newaddr' set but not used' 2019-11-27 07:51:35 -06:00
Xiang Xiao
afb40d87fb fs/mmap/fs_mmap.c: Add support for MAP_PRIVATE. 2019-11-23 08:07:04 -06:00
Gregory Nutt
419c4cb6be A little more progress toward the implementation of per-window framebuffers. Still missing: 
- Logic that generates the low lever framebuffer renderers for the per-window framebuffers,
- The logic that picks off the per-window framebuffer updates from normal graphics device updates.  This logic must update both the per-window framebuffer and the graphics device (from the framebuffer).

Squashed commit of the following:

    graphics:  Add logic to allocate the per-window framebuffer.

    graphics:  A few fragmentary thoughts on how a per-window framebuffer could be represented and allocated.
 2019-03-14 11:20:14 -06:00
Alan Carvalho de Assis
283b73edc5 Fix lots of typos in C comments and Kconfig help text 2018-07-08 18:24:45 -06:00
Dmitriy Linikov
f0ad45ee27 fs/mmap: Fixed compiler warning about access to uninitialized variable in rammap(...) 2018-03-15 14:44:34 -06:00
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
181875f3ba fs/vfs: Add new internal OS interface nx_read(). nx_read() is functionally equivalent to read() except that it does not modify the errno variable and it is not a cancellation point. Changed all references to read() in the OS to nx_read(). 2017-10-11 12:13:41 -06:00
Gregory Nutt
9568600ab1 Squashed commit of the following: 
This commit backs out most of commit b4747286b1.  That change was added because sem_wait() would sometimes cause cancellation points inappropriated.  But with these recent changes, nxsem_wait() is used instead and it is not a cancellation point.

    In the OS, all calls to sem_wait() changed to nxsem_wait().  nxsem_wait() does not return errors via errno so each place where nxsem_wait() is now called must not examine the errno variable.

    In all OS functions (not libraries), change sem_wait() to nxsem_wait().  This will prevent the OS from creating bogus cancellation points and from modifying the per-task errno variable.

    sched/semaphore:  Add the function nxsem_wait().  This is a new internal OS interface.  It is functionally equivalent to sem_wait() except that (1) it is not a cancellation point, and (2) it does not set the per-thread errno value on return.
 2017-10-04 15:22:27 -06:00