The default implementation was completely broken. Use the GCC specific
__alignof__ if compiling for C99 or C++03. If not C++11, C11, or
GCC, then it is an error.
According to commentary on GCC bug
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99143, the alignment
behavior of linker sections on which RTEMS has relied was never
guaranteed to be consistent across platforms and any alignment
requirements for linker sections needs to be enforced explicitly.
This adds those explicit alignment requirements.
Some targets support only flushing or invalidating complete cache lines.
In this cases misaligned buffers might lead to unexpected results. This
patch adds a flag that allows drivers to signal to the bus dma driver
that it is OK to round a buffer to the next full cache line. That's for
example necessary if a driver wants to send out 14 byte via a USB DMA.
Only the driver knows whether these 14 bytes are located in an otherwise
unused cache line aligned buffer.
- callout_reset_on takes a cpu which is ignored by the subsequent call
to callout_reset_sbt_on in RTEMS.
- The macro is redefined to discard the cpu argument directly which
enables uses of it with cpu-dependent variables (disabled in
RETMS) without further changes, e.g. in iflib.c.
Git mirror commit 59f44d20be3f99d181ca742e636d45fc39ec982b.
This commit updates OpenSSL to version 1.1.1. This required an update
of racoon which uses some internal stuff from OpenSSL and seems to be
mostly unmaintained, e.g. there is update in the FreeBSD ports to cope
with OpenSSL 1.1.1.
Update #3472.
FreeBSD has two callout executors, one in software and one in hardware
interrupt context. In libbsd, all callouts are executed by the timer
server. Entirely remove the different execution contexts for libbsd.
Previously, this was not properly done which could result an invalid
callout_drain() sequence leading to system memory corruption.
The getsockaddr() function is used to allocate a struct sockaddr of the
right length and initialize it with userspace provided data. It is used
for the connect(), bind() and sendit() family functions. In particular,
the sendit() function is used by the UDP send functions. This means
each UDP send needs a malloc() and free() invocation. This is a
performance problem in RTEMS (first-fit heap) and may lead to heap
fragmentation. Replace the malloc() allocation with a stack allocation.
This requires SOCK_MAXADDRLEN (= 255) of additional stack space for
libbsd.
A further optimization would be to get rid of the stack copy of the
socket address. However, this would require to check each consumer of
the address to ensure that it is not modified.
