Commit Graph

1291 Commits

Author SHA1 Message Date
Xiang Xiao
ebcb03dce9 libc/symtab: Don't include symtab.h in the header files
to unify the inclusion of symtab.h only from the source files

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-10 23:03:17 +03:00
Xiang Xiao
813b652ba5 elf: Move 32/64bit generic mapping from risc-v/arch_elf.c to elfxx.h
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-10 13:09:47 -03:00
Xiang Xiao
5849cf71d8 libc/symtab: Move SYMTAB_XXX from unistd/Kconfig to symtab/Kconfig
Make code and config in the same location

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-10 13:09:47 -03:00
Sunny
2a5f48c3fd libs/libc/stdlib: fix strtoul,strtoull bugs when value outside range
Prototype:
  unsigned long strtoul(FAR const char *nptr, FAR char **endptr, int base);
  unsigned long long strtoull(FAR const char *nptr,  FAR char **endptr, int base);

If endptr is not NULL, strtoul()/strtoull() should store the address of the first
invalid character in *endptr. And if the correct value is outside the range of
representable values, {ULONG_MAX} or {ULLONG_MAX} shall be returned and errno set
to [ERANGE].

With such code:
  strtoul("34592348345343453453455645765736575865767", &endptr, 10);

It indeed returns ULONG_MAX and sets errno to ERANGE. But after strtoul
return, endptr points to "3455645765736575865767", not NULL.

Signed-off-by: Sunny <zxcvbnm37425@gmail.com>
2023-07-10 19:07:27 +03:00
guoshichao
dc08798764 libs/libc/pthread: add the implementation of pthread_getcpuclockid
1. the implementation can pass the
ltp/open_posix_testsuite/pthread_getcpuclockid testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_getcpuclockid.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-07-10 13:40:49 +08:00
chao an
de7132c697 cmake/sched: fix build break based on mainline
Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-10 13:26:21 +08:00
Sunny
9856eae61f libc/libvsprintf: fix vsnprintf bug with "%e"
For "%e" conversion, the exponent always contains at least two digits.
That means if the value is zero, the exponent is 00, not 0.

Such as code:
  printf(buffer, sizeof(buffer), "%e", 1.232323232323);
  printf(buffer, sizeof(buffer), "%e", 12.32323232323);
  printf(buffer, sizeof(buffer), "%e", 123.2323232323);

Expected output:
  1.232323e+00
  1.232323e+01
  1.232323e+02

But real output:
  1.232323e+0
  1.232323e+1
  1.232323e+2

Signed-off-by: Sunny <zxcvbnm37425@gmail.com>
2023-07-09 01:50:41 +08:00
chao an
6ee9ec7656 build: add initial cmake build system
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)

------------------

How to test

From within nuttx/. Configure:

cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja

(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja

This uses ninja generator (install with sudo apt install ninja-build). To build:

$ cmake --build build

menuconfig:

$ cmake --build build -t menuconfig

--------------------------

2. cmake/build: reformat the cmake style by cmake-format

https://github.com/cheshirekow/cmake_format

$ pip install cmakelang

$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done

Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-08 13:50:48 +08:00
Petro Karashchenko
558fa503d0 libs/libc/misc: fix alignment in fdcheck
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2023-07-07 17:39:39 -03:00
Petro Karashchenko
85a46bf599 arch/sim: unify usage for SYMBOL macro
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2023-07-07 17:39:39 -03:00
Petro Karashchenko
b8d3e32bdf sched/clock: move clock_getcpuclockid() and clock_getres() to libc
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2023-07-07 17:39:39 -03:00
Neale Ferguson
b5cd7c2a82 libs/libc/modlib: fix dynamic loader issues
* build-globals.sh
    - Macros for defining symbols etc. based on assembler in use
    - Use the System.map to get all the nuttx symbols

  * libs/libc/modlib/modlib_globals.S
    - Provide an empty skeleton. If the dynamic loading functions
      are required then run build-global.sh after a clean build
      using the skeleton. This will fill out the skeleton with the
      symbols to be available to dynamically loaded modules.

  * libs/libc/modlib/modlib_loadhdrs.c
    - Fix case where there are no program headers are avaiable
2023-07-07 13:43:20 -04:00
Gregory Nutt
8868c58720 Fix Deadloop in VFS if CONFIG_CANCELLATION_POINTS is enabled
If cancellation points are enabled, then the following logic is activated in sem_wait().  This causes ECANCELED to be returned every time that sem_wait is called.

    int sem_wait(FAR sem_t *sem)
    {
      ...

      /* sem_wait() is a cancellation point */

      if (enter_cancellation_point())
        {
    #ifdef CONFIG_CANCELLATION_POINTS
          /* If there is a pending cancellation, then do not perform
           * the wait.  Exit now with ECANCELED.
           */

          errcode = ECANCELED;
          goto errout_with_cancelpt;
    #endif
        }
      ...

Normally this works fine.  sem_wait() is the OS API called by the application and will cancel the thread just before it returns to the application.  Since it is cancellation point, it should never be called from within the OS.

There there is is one perverse cases where sem_wait() may be nested within another cancellation point.  If open() is called, it will attempt to lock a VFS data structure and will eventually call nxmutex_lock().  nxmutex_lock() waits on a semaphore:

   int nxmutex_lock(FAR mutex_t *mutex)
   {
     ...

     for (; ; )
       {
         /* Take the semaphore (perhaps waiting) */

         ret = _SEM_WAIT(&mutex->sem);
         if (ret >= 0)
           {
             mutex->holder = _SCHED_GETTID();
             break;
           }

         ret = _SEM_ERRVAL(ret);
         if (ret != -EINTR && ret != -ECANCELED)
           {
             break;
           }
       }
   ...
}

In the FLAT build, _SEM_WAIT expands to sem_wait().  That causes the error in the logic:  It should always expand to nxsem_wait().  That is because sem_wait() is cancellation point and should never be called from with the OS or the C library internally.

The failure occurs because the cancellation point logic in sem_wait() returns -ECANCELED (via _SEM_ERRVAL) because sem_wait() is nested; it needs to return the -ECANCELED error to the outermost cancellation point which is open() in this case.  Returning -ECANCELED then causes an infinite loop to occur in nxmutex_lock().

The correct behavior in this case is to call nxsem_wait() instead of sem_wait().  nxsem_wait() is identical to sem_wait() except that it is not a cancelation point.  It will return -ECANCELED if the thread is canceled, but only once.  So no infinite loop results.

In addition, an nxsem_wait() system call was added to support the call from nxmutex_lock().

This resolves Issue #9695
2023-07-06 14:20:29 -03:00
Alan Carvalho de Assis
bc62699c1d Fix coding style issues from PR #7202
Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2023-07-06 14:08:08 -03:00
Xiang Xiao
8f38fa6062 symtab: Remove the unnessary inclusion of nuttx/symtab.h
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-06 09:24:02 -03:00
Xiang Xiao
935f43185f libc/modlib: Replace nx_stat with file_stat
to avoid searching the path twice

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-06 09:20:24 -03:00
Xiang Xiao
7bb97f7e22 elf: Replace {0x7f, 'E', 'L', 'F'} to EI_MAGIC
to avoid the duplication of the magic number.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-06 09:15:50 -03:00
Neale Ferguson
3cee81af6d * libs/libc/machine/arm/armv7-m/arch_elf.c
- Fix typo
2023-07-06 09:13:38 -03:00
Neale Ferguson
fec789047a Add support for the loading of ET_DYN objects
* libs/libc/machine/arm/armv7-m/arch_elf.c
      - Fix cast of error message parameters

    * build-globals.sh
      - Build the modlib_globals.S file used to resolve symbols when dynamically loading

    * libs/libc/modlib/Make.defs
      - Build modlib_globals.S for all targets

    * libs/libc/modlib/modlib_load.c
      - Calculate sizes and text/data addresses based on program headers rather than section headers
      - Handle objects with no program headers

    * libs/libc/modlib/modlib_bind.c
      - Call modlib_readsym with pointer to symbol table
      - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN)
      - Differentiate between ET_REL and ET_DYN objects
      - Use arch independent symbol ELF_R_SYM
      - Cast sizes to avoid warnings

    * libs/libc/modlib/modlib_load.c
      - Cast sizes to avoid warnings

    * include/elf.h
      - Add definitions that may be found in shared objects

    * include/nuttx/lib/modlib.h
      - Add parameter to modlib_readsym prototype
      - Add prototypes for:
        - modlib_insertsymtab
        - modlib_findglobal
      - Define Elf_Dyn and Elf_Off according to the elf architecture
      - Add fields to mod_loadifno_s:
        - Program headers
        - Exported symbols
        - Data section address
        - Padding requirement
        - Section index for dynamic symbol table
        - Number of symbols exported
      - Add prottotype for modlib_freesymtab

    * libs/libc/dlfcn/lib_dlclose.c
      - Free the symbol table when the dll is closed

    * libs/libc/dlfcn/lib_dlopen.c
      - Add dump of program headers to debug routine
      - Differentiate between ET_REL and ET_DYN objects

    * libs/libc/machine/arm/armv7-m/arch_elf.c
      - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types

    * libs/libc/modlib/modlib_loadshdrs.c
      - Rename modlib_loadshdrs.c to modlib_loadhdrs.c
      - Rename modlib_loadshdrs to modlib_loadhdrs
      - Add code to load program headers

    * libs/libc/modlib/modlib_symbols.c
      - Define entry point structure
      - Add offset parameter to modlib_symname() and use to find symbol names
      - Add symtab section header parameter to modlib_readsym()
      - Add offset parameter to modlib_symvalue() to locate symbol names
      - Add modlib_insertsyntab() to create a symbol table for exporting and resolution
      - Add findEP() to resolve a symbol in the modlib_global table
      - Add modlib_findglobal() to find symbol in the modlib_global table
      - Add modlib_freesymtab() to free the symbol table

    * libs/libc/modlib/modlib_uninit.c
      - Free header and sections from a module_loadinfo_s control block

    * libs/libc/modlib/modlib_verify.c
      - Handle ET_DYN shared objects

    * libs/libc/modlib/modlib_globals.S
      - Multi-target global table
      - Define library APIs that may be resolved when loading a shared object
2023-07-06 09:13:38 -03:00
fangxinyong
dc7f8f136c signal: correct to const pointer for sigorset and sigandset
the two GNU functions, should use const input pointer parameter.

https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/baselib-sigorset.html
https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/baselib-sigandset.html

Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
2023-07-05 16:26:18 +08:00
Sunny
abfdffd879 libc/libvsprintf:fix vsnprintf bug with "%#.0f"
With double value=3.141593 initialized in va_list ap,
such code:
   vsnprintf(buffer, sizeof(buffer), "%#.0f", ap);
expected output string: "3."
but real output string: ".3"

Signed-off-by: Sunny <zxcvbnm37425@gmail.com>
2023-07-04 10:36:31 -03:00
guoshichao
42f8308423 sched/clock/clock_getres: add two CPUTIME_ID res support
1. make the clock_getres can pass the
ltp/open_posix_testsuite/clock_getres 7-1, 8-1 two cases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/clock_getres.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-07-03 23:11:00 +03:00
guoshichao
af53d7a178 libs/libc/aio/lio_listio: fix the heap use-after-free bug
1. the lio_sigsetup() method use a universal sighand instance across all
aiocb instances, but inside the lio_sighandler() method, if one aiocb is
handle finished, then this method will free the sighand instance that
come along with current aiocb instance. thus when handle next aiocb
instance, use-after-free crash will happen. in order to solve this
problem, we make each aiocb instance have their own sighand instance
2. make the lio_listio implementation can pass the
ltp/open_posix_testsuite/lio_listio testcases
3. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/lio_listio.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-07-03 13:37:34 +08:00
guoshichao
4af8c58b93 libs/libc/locale/langinfo: implement the nl_langinfo function
1. the nl_langinfo can help to pass the
ltp/open_posix_testsuite/strftime testcases
2. the implementation are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/nl_langinfo.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-07-02 13:57:36 +08:00
Junbo Zheng
0d3252ba06 libs/libc: fix locale/lib_iconv.c:538:23: warning: dereference of NULL ‘scd’ [CWE-690] [-Wanalyzer-null-dereference] by -fanalyzer
CC:  signal/sig_queue.c locale/lib_iconv.c: In function ‘iconv’:
locale/lib_iconv.c:538:23: warning: dereference of NULL ‘scd’ [CWE-690] [-Wanalyzer-null-dereference]
  538 |               if (!scd->state)
      |                    ~~~^~~~~~~
  ‘iconv’: events 1-5
    |
    |  413 |   x = 0;
    |      |   ~~^~~
    |      |     |
    |      |     (1) ‘scd’ is NULL
    |  414 |   scd = NULL;
    |  415 |   if (((size_t)cd & 1) == 0)
    |      |      ~
    |      |      |
    |      |      (2) following ‘false’ branch...
    |......
    |  421 |   to = extract_to(cd);
    |      |        ~~~~~~~~~~~~~~
    |      |        |
    |      |        (3) ...to here
    |......
    |  428 |   if (in == NULL || *in == NULL || *inb == 0)
    |      |      ~              ~~~
    |      |      |              |
    |      |      |              (5) ...to here
    |      |      (4) following ‘false’ branch (when ‘in’ is non-NULL)...
    |
  ‘iconv’: events 6-8
    |
    |  428 |   if (in == NULL || *in == NULL || *inb == 0)
    |      |       ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
    |      |                  |              |  |
    |      |                  |              |  (7) ...to here
    |      |                  |              (8) following ‘false’ branch...
    |      |                  (6) following ‘false’ branch...
    |
  ‘iconv’: event 9
    |
    |cc1:
    | (9): ...to here
    |
  ‘iconv’: events 10-14
    |
    |  433 |   for (; *inb; *in += l, *inb -= l)
    |      |   ^~~
    |      |   |
    |      |   (10) following ‘true’ branch...
    |  434 |     {
    |  435 |       c = *(FAR unsigned char *)*in;
    |      |            ~~~~~~~~~~~~~~~~~~~~~~~~
    |      |            |
    |      |            (11) ...to here
    |......
    |  438 |       switch (type)
    |      |       ~~~~~~
    |      |       |
    |      |       (12) following ‘case 200:’ branch...
    |......
    |  529 |           case UCS2:
    |      |           ~~~~
    |      |           |
    |      |           (13) ...to here
    |......
    |  538 |               if (!scd->state)
    |      |                    ~~~~~~~~~~
    |      |                       |
    |      |                       (14) dereference of NULL ‘scd’
    |
locale/lib_iconv.c:565:23: warning: dereference of NULL ‘scd’ [CWE-690] [-Wanalyzer-null-dereference]
  565 |               if (!scd->state)
      |                    ~~~^~~~~~~
  ‘iconv’: events 1-5
    |
    |  413 |   x = 0;
    |      |   ~~^~~
    |      |     |
    |      |     (1) ‘scd’ is NULL
    |  414 |   scd = NULL;
    |  415 |   if (((size_t)cd & 1) == 0)
    |      |      ~
    |      |      |
    |      |      (2) following ‘false’ branch...
    |......
    |  421 |   to = extract_to(cd);
    |      |        ~~~~~~~~~~~~~~
    |      |        |
    |      |        (3) ...to here
    |......
    |  428 |   if (in == NULL || *in == NULL || *inb == 0)
    |      |      ~              ~~~
    |      |      |              |
    |      |      |              (5) ...to here
    |      |      (4) following ‘false’ branch (when ‘in’ is non-NULL)...
    |
  ‘iconv’: events 6-8
    |
    |  428 |   if (in == NULL || *in == NULL || *inb == 0)
    |      |       ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
    |      |                  |              |  |
    |      |                  |              |  (7) ...to here
    |      |                  |              (8) following ‘false’ branch...
    |      |                  (6) following ‘false’ branch...
    |
  ‘iconv’: event 9
    |
    |cc1:
    | (9): ...to here
    |
  ‘iconv’: events 10-14
    |
    |  433 |   for (; *inb; *in += l, *inb -= l)
    |      |   ^~~
    |      |   |
    |      |   (10) following ‘true’ branch...
    |  434 |     {
    |  435 |       c = *(FAR unsigned char *)*in;
    |      |            ~~~~~~~~~~~~~~~~~~~~~~~~
    |      |            |
    |      |            (11) ...to here
    |......
    |  438 |       switch (type)
    |      |       ~~~~~~
    |      |       |
    |      |       (12) following ‘case 202:’ branch...
    |......
    |  557 |           case UTF_32:
    |      |           ~~~~
    |      |           |
    |      |           (13) ...to here
    |......
    |  565 |               if (!scd->state)
    |      |                    ~~~~~~~~~~
    |      |                       |
    |      |                       (14) dereference of NULL ‘scd’
    |

Signed-off-by: Junbo Zheng <zhengjunbo1@xiaomi.com>
2023-06-30 16:11:10 +08:00
guoshichao
083c11ef1a libs/libc/time/strftime: complete the strftime implementation
1. make the strftime implementation can pass the
ltp/open_posix_testsuite/strftime/1-1 testcase
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-30 12:02:23 +08:00
guoshichao
d5f45dc33b libs/libc/aio: fix aio_cancel compatible issue
1. make the aio_cancel implementation can pass the
ltp/open_posix_testsuite/aio_cancel testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/aio_cancel.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-29 23:25:33 +08:00
Mingjie Shen
f5a2741ec2 libc/lib_remove: fix TOCTOU race condition
Separately checking the state of a file before operating on it may allow
an attacker to modify the file between the two operations.

Reference:
  CWE-367
  4290aed051/sysdeps/posix/remove.c (L29-L41)

Signed-off-by: Mingjie Shen <shen497@purdue.edu>
2023-06-29 18:15:06 +08:00
Huang Qi
f48a92810b libc.csv: Correct return type of strchr
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2023-06-28 18:23:52 +08:00
guoshichao
0d9e7be323 libs/libc/aio: fix aio_return compatible bug
1. make the aio_return implementation can pass the
ltp/open_posix_testsuite/aio_return testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/aio_return.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-28 15:17:35 +08:00
Xiang Xiao
b64c029080 libc/pwd: Correct the geos related comment and ddd ROOT_GEOS macro
fix the minor issue in https://github.com/apache/nuttx/pull/7998

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-27 16:18:57 -03:00
Xiang Xiao
f1f33917f7 libc/pwd: Reuse g_passwd and g_passwd_buffer in getpwbuf
like other similar functions(e.g. getpwnam and getpwuid)

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-27 16:18:57 -03:00
guoshichao
6c60c7df07 libs/libc/aio: fix aio_error compatible bug
1. make the aio_error implementation can pass the
ltp/open_posix_testsuite/aio_error testcases
2. the modification are referred to https://pubs.opengroup.org/onlinepubs/9699919799/functions/aio_error.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-27 10:10:37 -03:00
guoshichao
037a6f5836 libs/libc/signal: add killpg function
1. the killpg function can make all the
ltp/open_posix_testsuite/killpg testcaes passed
2. Nuttx do not support process group, so we use kill process instead
3. the implementation are referred to:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/killpg.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-27 13:26:20 +08:00
Xiang Xiao
7f80b4aeba clock: Move the content of include/nuttx/time.h to include/nuttx/clock.h
and remove include/nuttx/time.h to reduce the nuttx specific header files

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-26 19:14:08 +03:00
Xiang Xiao
b5c48f3ed8 binfmt: Always include arch/elf.h in include/nuttx/elf.h
since symbols defined in arch/elf.h is also used in other case, for example:
CC:  pthread/pthread_testcancel.c machine/arm/gnu_unwind_find_exidx.c:32:8: error: unknown type name '__EIT_entry'
   32 | static __EIT_entry *__exidx_start_elf;
      |        ^~~~~~~~~~~

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-25 19:02:53 -03:00
guoshichao
3821ad514d libs/libc/unistd: add getpgrp function
1. the getpgrp function can help to pass the ltp/open_posix_teststuite/killpg related testcases
2. Nuttx do not support process group, so we use getpid to implement this
3. the implementation are referred to: https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpgrp.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-06-26 01:03:36 +08:00
anjiahao
1711a298a8 libc/semaphore:Set the flag need AND SEM_PRIO_MASK
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-06-22 16:08:03 +08:00
Alan Carvalho de Assis
9b8eedd218 lib_strftime: Also fix %l to avoid printing 0:xx AM/PM 2023-06-21 12:18:00 +08:00
Alan Carvalho de Assis
95f131c3c2 lib_strftime: Fix %I to avoid printing 00:xx AM/PM
Currently strftime is printing 00:00 AM and 00:00 PM instead of
12:00 AM and 12:00 PM when using %I.

This commit fixes this issue!
2023-06-21 12:18:00 +08:00
Xiang Xiao
1a06f7a2c9 libc: memfd_create should create /tmp/memfd/ before creating file
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-20 20:14:20 +03:00
Xiang Xiao
43f9abf84f libc: Prefer to implement memfd on top of shm
since shm can work in protected and kernel mode too

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-20 20:14:20 +03:00
simbit18
f930b4f6f5 Fix Kconfig style
Remove TABs from Kconfig files
Replace help => ---help---
Add comments
2023-06-20 12:54:50 -03:00
Bowen Wang
8515294caa lib_syslograwstream: fix bug when iob alloc failed
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
2023-06-17 19:33:41 +08:00
zhangyuan21
514e77b75e semaphore: Optimize priority inheritance with only one holder
This PR is a modification that optimizes priority inheritance
for only one holder. After the above modifications are completed,
the mutex lock->unlock process that supports priority inheritance
can be optimized by 200 cycles.

Before modify: 2000 cycle
After modify: 1742 cycle

Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
2023-06-17 08:26:46 +03:00
Xiang Xiao
14e5bcaf6e fs/fdcheck: Let FDCHECK depend on SCHED_HAVE_PARENT
since the implementation of fdcheck call getppid

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-16 18:08:05 +03:00
Xiang Xiao
c49bf046bd libc/fdcheck: Fix undefined reference to `getppid'
and change get[p]pid to  _SCHED_GET[P]PID

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-06-16 08:31:16 +03:00
zhanghongyu
b723e90356 fs: move memset to upper lever for statfs
if struct statfs add new members, such as f_fsid, no additional code
changes are required.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-06-16 11:10:25 +08:00
hujun5
b2ff151282 libc/fdcheck: if pid_expect is 0, fdcheck does not take effect
there are some user code like this:
  /* close all inherited fds */
  for (i = 3; i < maxfds; i++)
    func (i);

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2023-06-15 03:29:17 +08:00
hujun5
04db52612e libc/fdcheck: child process that uses the parent process'fd will crash
In many cases, it is legal for the child process to use the fd
created by the parent process,
so to improve compatibility, we allow the child process
to use the fd of the Parent process.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2023-06-15 03:29:17 +08:00