Some variables generated by Yacc / Lex need a special treatment. That
had been done by manual editing of the generated headers in the past.
This patch integrate these changes into the generator.
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.
For an update from an earlier version it is necessary to do a
git submodule sync rtems_waf
git submodule update rtems_waf
after this commit is applied to update the submodules URL.
This adds two new buildset configurations: One that leaves out as much
features as possible and one that enables all features. For the default
configuration WiFi support is now disabled.
To disable IPv6 for the minimal configuration, all -DINET6 are
eliminated in libbsd.py. They are now replaced by a #ifdef that checks
for RTEMS_BSD_MODULE_NETINET6 instead.
Close#3351.
The generated file defines a RTEMS_BSD_MODULE_xxx for each enabled
module. That is usefull for conditional compilation depending on whether
a module is build not.
Update #3351.
Use a self-contained RTEMS binary semaphore instead of msleep() and
wakeup(). This is itself more efficient and in addition allows the use
of mmc_wakeup() in interrupt context.
There are no imported sources for a number of modules. Some of them
doesn't even have the right paths for freebsd-org anymore. Therefore
this patch removes the following modules:
- dev_usb_add_on
- dev_usb_bluetooth
- dev_usb_controller_add_on
- dev_usb_misc
- dev_usb_storage_add_on
- dev_usb_template
- dev_nic_cs
Update #3351
Some applications (like the civetweb web server) still use functions
that are deprecated by openssl. If OPENSSL_NO_DEPRECATED is defined,
openssl will not provide these functions. This patch removes the define
so that the functions are available.
