Move the logic to get TLS information from an inline function to a normal function. For the unaligned case, it is probably too large to be inlined.
Also fixes some minor things from review of previous commits.
The sched_get_stackinfo() interface was just added. However, it occurs to me that it is a dangerous feature and could lead to security problems. In FLAT and PROTECTED modes, if you get access to any other threads stack, you could do harm.
This commit adds some level of security. Basically, it implements these rules:
1. Any thread may query its own stack,
2. A kernel thread may query the stack of any other thread
3. Application threads, however, may query only the stacks of threads within the same task group, i.e., the main thread and any of the child pthreads created with the main thread as a parent or grandparent or great-grandpart ...
The new OS interface, sched_get_stackinfo() combines two pthread-specific interfaces into a single generic interface. The existing pthread_get_stackaddr_np() and pthread_get_stacksize_np() are moved from sched/pthread to libs/libc/pthread.
There are two motivations for this change: First, it reduces the number of system calls. Secondly, it adds a common hook that is going to used for a future implementation of TLS.
Fix it after the following change:
commit bb4458b63f
Author: Ouss4 <abdelatif.guettouche@gmail.com>
Date: Thu Apr 30 19:05:12 2020 +0100
include/sys/stat.h: Per the POSIX standard, the atime, ctime and mtime field
s
have changed their type from time_t to struct timespec.
Sockets are created in two steps:
1. The socket is allocated, then
2. The socket is initialized.
In SMP mode, there is a possibility that a pthread executing one CPU may create a new task while a pthread on another CPU has allocated the socket but not yet initialized it. This commit updates the socket clone test to assure that the socket is both allocated and initailized.
Without the change, it is possible that uninitialized sockets could be cloned, leading to errors later in the newly started task.
This change is needed to be able to fix the warnings on the audio core
and includes the propagation of the fix in the audio.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Adds an initial Nuttx audio driver supporting the Spresense CXD56.
Being a work in progress the driver has a number of limitations:
- Audio playback only, no recording yet.
- Only 16 bit stereo playback is supported.
- In practice only 48kHz playback is supported due to missing SRC.
- Configure driver in "Device Drivers --> Audio Device Support".
arp/arp_notify.c:132:43: warning: for loop has empty body [-Wempty-body]
prev = curr, curr = curr->nt_flink);
^
sixlowpan/sixlowpan_tcpsend.c:806:31: warning: implicit conversion from 'unsigned int' to 'uint16_t' (aka 'unsigned short') changes value from 4294967295 to 65535 [-Wconstant-conversion]
_SO_TIMEOUT(psock->s_sndtimeo));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Numerous warnings like:
ieee802154_getreq.c:93:3: warning: implicit declaration of function 'memcpy' is invalid in C99 [-Wimplicit-function-declaration]
IEEE802154_EADDRCOPY(eaddr, req.attrval.mac.eaddr);
^
nxfonts/nxfonts_cache.c:839:35: warning: for loop has empty body [-Wempty-body]
fcache = fcache->flink);
bluetooth/bluetooth_finddev.c💯11: warning: implicit declaration of function 'memcmp' is invalid in C99 [-Wimplicit-function-declaration]
if (BLUETOOTH_ADDRCMP(dev->d_mac.radio.nv_addr, match->bf_addr))
^
rwbuffer.c:559:7: warning: variable 'ret' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
if (rwb->rhmaxblocks > 0 && rwb->rhnblocks > 0)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
