The small page MMU support reduces the granularity for memory settings
through the MMU from 1MiB sections to 4KiB small pages.
Enable it by default on the realview_pbx_a9_qemu BSP.
LLVM/LLD does not support STARTUP and ALIGN_WITH_INPUT directives that
GNU LD support. INPUT and ALIGN(8) are supported by LLVM/LLD and can
replace the unsupported STARTUP/ALIGN_WITH_INPUT directives.
The commit conditionally adds the supported directive that linkers
can understand depending on the toolchain used to compile RTEMS
i.e., clang or gcc. Clang is assumed to use LLD by default.
For level triggered interrupts currently the handler would have been
called two times (assuming no one cleared the mask in a handler which
would have been bad because the handler couldn't process all other that
got cleared by accident). This patch allows the handler only to return
if nothing is left to do.
This ensures that lines are output atomically if they are produced by
different other contexts, e.g. interrupts, other processors, other
threads.
Update #3199.
Retrieved from:
https://creativecommons.org/licenses/by-sa/4.0/legalcode.txt
This license is inteded for code which is shared with the documentation,
e.g code examples. Such code should be dual licensed BSD-2-Clause or
CC-BY-SA-4.0 with the following license identifier:
SPDX-License-Identifier: BSD-2-Clause OR CC-BY-SA-4.0
This patch adds the ability for termios to send SIGINTR on receipt
of VINTR and SIGQUIT for VKILL and return -1/EINTR from read() on
a termios channel. Importantly, this patch does not alter the default
behavior or force POSIX signal code in just because termios is used.
The application must explicitly enable the POSIX behavior of generating
a signal upon receipt of these characters. This is discussed in the
POSIX standard:
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap11.html
Closes#3800.
This makes it possible to install higher quality timecounter in
plug-and-play systems and helps to override the clock driver provided
timecounter in some test scenarios.
Introduce new library librtemsrecordwrap.a which contains wrappers for
operating system functions which produce entry/exit events.
The wrappers can be selected during link time via the GNU ld --wrap
option.
Update #3665.
