Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
o A new data structure rtems_filesystem_global_location_t was
introduced to be used for
o the mount point location in the mount table entry,
o the file system root location in the mount table entry,
o the root directory location in the user environment, and
o the current directory location in the user environment.
During the path evaluation global start locations are obtained to
ensure that the current file system instance will be not unmounted in
the meantime.
o The user environment uses now reference counting and is protected
from concurrent access.
o The path evaluation process was completely rewritten and simplified.
The IMFS, RFS, NFS, and DOSFS use now a generic path evaluation
method. Recursive calls in the path evaluation have been replaced
with iteration to avoid stack overflows. Only the evaluation of
symbolic links is recursive. No dynamic memory allocations and
intermediate buffers are used in the high level path evaluation. No
global locks are held during the file system instance specific path
evaluation process.
o Recursive symbolic link evaluation is now limited by
RTEMS_FILESYSTEM_SYMLOOP_MAX. Applications can retrieve this value
via sysconf().
o The device file system (devFS) uses now no global variables and
allocation from the workspace. Node names are allocated from the
heap.
o The upper layer lseek() performs now some parameter checks.
o The upper layer ftruncate() performs now some parameter checks.
o unmask() is now restricted to the RWX flags and protected from
concurrent access.
o The fchmod_h and rmnod_h file system node handlers are now a file
system operation.
o The unlink_h operation has been removed. All nodes are now destroyed
with the rmnod_h operation.
o New lock_h, unlock_h, clonenod_h, and are_nodes_equal_h file system
operations.
o The path evaluation and file system operations are now protected by
per file system instance lock and unlock operations.
o Fix and test file descriptor duplicate in fcntl().
o New test fstests/fsnofs01.
PR 1855/cpukit
* posix/src/psignal.c, posix/src/pthread.c, posix/src/pthreadjoin.c:
Correct signal processing during pthread_join. We are supposed to
unblock the thread waiting on a pthread_join(), dispatch the signal
handler, account for it potentially overwriting errno, and then have
the thread return to blocking within pthread_join().
PR 1867/cpukit
* posix/src/pthreadexit.c, posix/src/pthreadjoin.c: Correct
implementation of pthread_exit() and pthread_join() to support the
case where a thread is joinable but calls pthread_exit() before a
thread has attempted to join.
PR 1759/cpukit
* posix/src/cancel.c, posix/src/pthreaddetach.c,
posix/src/pthreadequal.c, posix/src/pthreadgetschedparam.c,
posix/src/pthreadjoin.c, posix/src/pthreadkill.c,
posix/src/pthreadsetschedparam.c: Some POSIX pthread services did not
support using Classic API Task Ids.
* libmisc/capture/capture.c, posix/src/keyfreememory.c,
posix/src/pthread.c, score/include/rtems/score/wkspace.h,
score/src/objectextendinformation.c,
score/src/objectnamespaceremove.c, score/src/objectsetname.c,
score/src/threadclose.c, score/src/threadinitialize.c,
score/src/wkspace.c: Many places were checking for a NULL pointer
before calling _Workspace_Free. By moving the check into
_Workspace_Free, we eliminate a number of conditional paths and make
it harder to return a NULL pointer.
* posix/src/aio_misc.c: Fix rtems_aio_remove_req did not iterate
over chain.
* posix/src/aio_cancel.c: Add debug information. Add check for
bad file descriptor. Add else branch for cancel request on empty
IQ chain.
* configure.ac, posix/src/signal_2.c: sighandler_t is defined
conditionally in some versions of newlib and unconditionally in
others. Make sure we always compile.
