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43 Commits

Author SHA1 Message Date
Xiang Xiao
aed85964ff sched/env: Don't need copy env variable from parent in env_dup 
since caller always pass them if needed

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-10-19 08:22:56 +09:00
chao.an
704b03f833 sched: fix visual studio Compiler Warning (level 4) C4706 
D:\code\incubator-nuttx\sched\environ\env_dup.c(81):
  warning C4706: assignment within conditional expression
  [D:\code\nuttx\incubator-nuttx\vs20221\sched\sched.vcxproj]

Reference:
https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4706?view=msvc-170

Signed-off-by: chao.an <anchao@xiaomi.com>
 2022-08-17 18:33:44 +08:00
Ville Juven
dc2b2dcb3f sched/env: Check for incoming parameter validity in unsetenv() 
Something the function did not do, check the incoming parameter is vlaid
 2022-06-14 10:39:52 +03:00
Ville Juven
1b32fc1642 sched/env: Fix the return value of unsetenv() 
If the environment variable does not exist, the function succeeds, as
defined by POSIX.
 2022-06-14 10:39:52 +03:00
Xiang Xiao
9794068a9c sched/environ: Remove the unneeded cast in env_dup 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-04-21 22:55:47 +03:00
Ville Juven
4c1b66246d env_dup: Fix copying of env between address environments 
If address environments are in use, it is not possible to simply
memcpy from from one process to another. The current implementation
of env_dup does precisely this and thus, it fails at once when it is
attempted between two user processes.

The solution is to use the kernel's heap as an intermediate buffer.
This is a simple, effective and common way to do a fork().

Obviously this is not needed for kernel processes.
 2022-04-21 18:38:37 +08:00
Xiang Xiao
2c82bef702 sched/environ: Refine the environment variables storage layout 
to confirm the standard and then implement get_environ_ptr correctly

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-04-18 10:33:37 +03:00
Xiang Xiao
701bbaac74 sched/environ: Ensure tg_envp terminated by double '\0' 
so we can compute the whole environ string length from it

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2022-04-14 07:49:00 +03:00
Ville Juven
3581668c6b env_dup: Allocate memory from the correct memory pool 
When the initial proxy task is duplicated into the first user task,
the environment exists in kernel memory and this must be copied to user
memory.

The memory allocated for the new task was allocated with the parent's
priority which is incorrect. Use the new task's priority instead.

Follow-up for: #5753
 2022-03-22 10:15:29 +08:00
Ville Juven
50578dc501 Fix the initial idle tasks environment 
- User mode allocator was used for setting up the environment. This
  works in flat mode and probably in protected mode as well, as there
  is always a a single user allocator present
- This does not work in kernel mode, where each user task has its own
  heap allocator. Also, when the idle tasks environment is being set,
  no allocator is ready and the system crashes at once.

Fix this by using the group allocators instead:
- Idle task is a kernel task, so its group is privileged
- Add group_realloc
- Use the group_malloc/realloc functions instead of kumm_malloc
 2022-03-16 20:21:19 +08:00
Xiang Xiao
2e54df0f35 Don't include assert.h from public header file 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2021-06-03 08:36:03 -07:00
Alin Jerpelea
dee641828f sched: nxstyle fixes 
nxstyle fixes to pass CI

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
 2021-02-09 01:21:53 -08:00
Alin Jerpelea
8935ac4cc3 sched: 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
ligd
231ad202ee global change: repace sched_xfree() to kxmm_free() 
Changes:
sched_xfree() => kxmm_free()
remove garbage related APIs
remove ARCH_HAVE_GARBAGE

Cause garbage feature move to mm_heap, then don't need
garbage anymore.

Change-Id: If310790a3208155ca8ab319e8d038cb6ff92c518
Signed-off-by: ligd <liguiding@fishsemi.com>
 2020-04-09 10:29:28 -06:00
Xiang Xiao
cde88cabcc Run codespell -w with the latest dictonary again 
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
 2020-02-23 22:27:46 +01:00
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
6a3c2aded6 Fix wait loop and void cast (#24) 
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
 2020-01-02 10:54:43 -06:00
zhangyuan7
b33fc302f0 net/inet and net/tcp: Fix tcp close flow; free the connection after all tcp close process finished. 2019-08-30 06:44:43 -06:00
Gregory Nutt
bde0509cae tools/nxstyle.c: Fix error in conditional logic that was preventing detection bad brace alignment. Add logic to handle alignment of braces in data initializators which following slightly different indentation rules. 2019-06-30 10:35:10 -06:00
Gregory Nutt
f914ec6e2b tools/nxstyle.c: Fix logic that detects if an operator is correctly delimited with spaces. sched/: Various changes because sched/ C files were used as Guinea Pigs to test nstyle.c. 2019-03-01 10:50:02 -06:00
Gregory Nutt
4eeba49507 Documentation/NuttShell.html: Add a little more information for the NSH set command. 2018-10-02 11:57:39 -06:00
Gregory Nutt
af50ab0088 sched/environ/env_unsetenv.c: Fix a memory leak introduced by the previous commit. 2018-09-30 11:45:59 -06:00
Gregory Nutt
d3c2373940 sched/environ/env_unsetenv.c: Fix and error in unsetenv() when unsetting the last of the environment variables. 2018-09-30 11:40:10 -06:00
Gregory Nutt
9546481054 Fix some typographical errors. 2018-09-14 06:55:45 -06:00
Gregory Nutt
25fa50d504 fs/proc and sched/environ: Add support for a procfs entry that will permit examining the environment of any task. 2018-08-10 10:16:39 -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
d33857002a sched/env_dup.c: Fix an error in the duplication of the child tasks environment in the special case where the parent's environment was created, but then all of the variables were unset. In that case, there is still an allocation in place but the size of the allocation is zero. This case was not being handled correctly when a child task attempts to create its environment and inherit the zero-size partent environment. Noted by Anthony Merlino. 2017-09-18 19:02:54 -06:00
Arjun Hary
b274a97840 Miscellaneous fixes from astyle tool. 2017-08-14 17:19:27 -06:00
Gregory Nutt
18ce4ff57b sched/: Review and correct some stylistic inconsistencies 2016-08-07 08:25:30 -06:00
Gregory Nutt
6543c570d4 Remove some empty file section section header comments 2016-02-17 17:38:39 -06:00
Gregory Nutt
74db48202e sched/: Replace explict references to g_readytorun with indirect references via the this_task() macro 2016-02-06 17:44:41 -06:00
Gregory Nutt
79d554939e sched/: Fix some spacing issues 2015-10-07 19:59:14 -06:00
Gregory Nutt
cb9e27c3b0 Standardize naming used for public data and function groupings 2015-10-02 16:30:35 -06:00
Gregory Nutt
322f9f401c Simplify how C source files are selected in the build 2014-10-07 07:42:36 -06:00
Gregory Nutt
54fa3b0b59 Rename kfree to kmm_free for consistency with other naming conventions 2014-08-31 17:04:02 -06:00
Gregory Nutt
9aca0c1c84 Rename kumalloc to kumm_malloc and kuzalloc to kumm_zalloc for consistency with other naming 2014-08-31 16:24:24 -06:00
Gregory Nutt
9ad7dae4c1 Rename kufree to kumm_free for consistency with other naming 2014-08-31 16:15:11 -06:00
Gregory Nutt
9cd1ddada4 Rename kmemalign to kmm_memalign and krealloc to kmm_realooc for consistency with other naming 2014-08-31 15:27:37 -06:00
Gregory Nutt
0ab1b0de25 nuttx/sched: Remove explicit references to errno. That is a problem from within the kernel for certain configurations 2014-08-28 17:00:24 -06:00
Gregory Nutt
e1769b22f1 Remove os_internal.h it has been replace by several new header files under sched/. There have been some sneak inclusion paths via os_internal.h, so expect a few compilation errors for some architectures 2014-08-08 18:39:28 -06:00
Gregory Nutt
d798dd37a7 Replace os_internal.h with sched/sched.h in files that actually reference something in sched.h 2014-08-08 17:53:55 -06:00
Gregory Nutt
e10a23ae50 Move environment files from sched/ to sched/environ 2014-08-08 13:53:29 -06:00