Move sched/task/task/task_gettid.c to libs/libc/unistd/lib_gettid.c. gettid() is a dumb wrapper around getpid(). It is wasteful of resources to support TWO systme calls, one for getpid() and one for gettid(). Instead, move gettid() in the C library where it calls the single sysgtem call, getpid(). Much cleaner.
1.Reduce the default size of task_group_s(~512B each task)
2.Scale better between simple and complex application
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ia872137504fddcf64d89c48d6f0593d76d582710
Summary:
- ARCH_GLOBAL_IRQDISABLE was initially introduced for LC823450 SMP
- At that time, i.MX6 (quad Cortex-A9) did not use this config
- However, this option is now used for all CPUs which support SMP
- So it's good timing for refactoring the code
Impact:
- Should have no impact because the logic is the same for SMP
Testing:
- Tested with board: spresense:smp, spresense:wifi_smp
- Tested with qemu: esp32-core:smp, maix-bit:smp, sabre-6quad:smp
- Build only: lc823450-xgevk:rndis, sam4cmp-db:nsh
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
it is useful to pass the nonempty argument to change the init task behaviour
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I684e9c76b9eac54404d0e4e63ab78e51e039c9a8
to save the preserved space(1KB) and also avoid the heap overhead
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I694073f68e1bd63960cedeea1ddec441437be025
Change the preallocated message and descriptor from 32/24 to 4.
The total size is reduce from 1892 to 532
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I79d199465daef678986868f773876289859f42fc
1.Don't preallocate sigaction list since it's used only in the task context
2.Reduce the preserved item which is used only in the task context from 16 to 4
The total memory decrease from 1280B to 480B
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ib5d5a7365c7d443fc0e99c0d3ea943e85f67ca8c
since the maximum number of argument pass to wd_start in the whole
code base is 2 and change CONFIG_MAX_WDOGPARMS in some defconfig
from 1 to 2 oherwise pthread_condclockwait will fail
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ib6cb28b8c0722058849e7be916e164513431d21c
Found by clang-check:
sched/sched_waitpid.c:380:33: warning: Although the value stored to 'ret' is used in the enclosing expression, the value is never actually read from 'ret'
(pid != (pid_t)-1 && (ret = nxsig_kill(pid, 0)) < 0))
^ ~~~~~~~~~~~~~~~~~~
1 warning generated.
because nx_task_idle doesn't call sched_note_start. To avoid the
same error happen again in the furture, nx_task_idle is removed.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Make.dep file should be updated by .config changed after first make.
There are 2 cases affected for this problem:
1) Add source files by config symbol
2) Include header files in #ifdef directive
These 2 cases may not be included in Make.dep and this may prevent the
differential build from working correctly.
Since up_release_stack auto detect whether the memory come from builtin heap
if (ttype == TCB_FLAG_TTYPE_KERNEL)
{
if (kmm_heapmember(dtcb->stack_alloc_ptr))
{
kmm_free(dtcb->stack_alloc_ptr);
}
}
else
{
/* Use the user-space allocator if this is a task or pthread */
if (umm_heapmember(dtcb->stack_alloc_ptr))
{
kumm_free(dtcb->stack_alloc_ptr);
}
}
This reverts commit 124e6ee53d.
add PR_SET_NAME_EXT/PR_GET_NAME_EXT extension to avoid semantic
conflicts, use extened version for pthread_setname_np/pthread_getname_np
Change-Id: I40404c737977a623130dcd37feb4061b5526e466
Signed-off-by: chao.an <anchao@xiaomi.com>
to avoid the similar code spread around each application
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I8967d647eaf2ecae47f29f83e7fa322ef1b42a02
change the stack pointer type from (uint32_t *) to (void *)
Change-Id: I90bb7d6a9cb0184c133578a1a2ae9a19c233ad30
Signed-off-by: chao.an <anchao@xiaomi.com>
If there's no child status available immediately,
return 0 without blocking as specified by the standards.
I checked the following version of the standard.
I believe it has always been this way though.
The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
If there's no child status available immediately,
return 0 without blocking as specified by the standards.
The implementation for non CONFIG_SCHED_HAVE_PARENT case
seems ok in this regard.
I checked the following version of the standard.
I believe it has always been this way though.
The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
Prohibit use of pthread_cleanup API's by kernel threads. The pthread pthread_cleanup functions MUST run in user mode, making them unusable for kernel threads.
See Issue #1263
since it is impossible that the current running thread is
in the waiting state and then need to wake up self.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie2ba55c382eb3eb7c8d9f04bba1b9e294aaf6196
