* Makefile.am, include/rtems/score/object.h,
include/rtems/score/objectmp.h, src/objectmp.c, src/objectnametoid.c:
Added ID to name lookup service and changed name of id/name
translation status code. This propagated to multiple functions. The
user API service added was rtems_object_id_to_name()
* src/objectidtoname.c: New file.
PR 408/filesystem
* score/Makefile.am, score/include/rtems/score/thread.h: Added
sync() service. As part of adding this service, the
new RTEMS service rtems_iterate_over_all_threads() was also added.
This new service makes it easier to iterate over all the
tasks/threads in a system and perform an action on them.
* score/src/iterateoverthreads.c: New file.
* ChangeLog: Fixed screwup.
PR 430/rtems
* include/rtems/score/watchdog.h: _Watchdog_Ticks_since_boot should
be a VOLATILE variable.
* src/watchdoginsert.c: 'restart' algorithm needs to enforce
reloading the list head in case a TICK interrupt during ISR_Flash()
modified the list. This is achieved by a proper VOLATILE cast.
Also _Watchdog_Sync_count++ should be protected by _ISR_Disable
(prevent corruption in case ISR calls watchdoginsert)
* src/watchdogadjust.c: ISR protection added.
* src/watchdogtickle.c: ISR protection added.
NOTE: PowerPC BSPs using the new exception processing MUST BE UPDATED
to maintain _ISR_Nest_level. See also PR288 which provides fixes
for the affected BSPs distributed with RTEMS.
* score/include/Makefile.am: Remove cpuopt.h generation.
* configure.ac: Correct package name.
Don't build ada if POSIX is disabled.
Generate cpuopt.h on the fly, filter out autoconf-2.53 PACKAGE crap.
* include/rtems/score/apimutex.h (_API_Mutex_Lock): Per PR253
add the missing _ISR_Disable. This fix was already applied to
the old location (c/src/exec/score/...).
* Mega patch merge to change the format of the object IDs to
loosen the dependency between the SCORE and the various APIs.
There was considerable work to simplify the object name management
and it appears that the name_table field is no longer needed.
This patch also includes the addition of the internal mutex
which is currently only used to protect some types of allocation
and deallocation. This significantly can reduce context
switch latency under certain circumstances. In particular,
some heap/region operations were O(n) and had dispatching
disabled. This should help enormously. With this merge,
the patch is not as clean as it should be. In particular,
the documentation has not been modified to reflect the new object
ID layout, the IDs in the test screens are not updated, and
_Objects_Get_information needs to be a real routine not inlined.
As part of this patch a lot of MP code for thread/proxy blocking
was made conditional and cleaned up.
* include/Makefile.am, include/rtems/score/coremsg.h,
include/rtems/score/coremutex.h, include/rtems/score/coresem.h,
include/rtems/score/object.h, include/rtems/score/threadq.h,
inline/rtems/score/object.inl, inline/rtems/score/thread.inl,
macros/rtems/score/object.inl, src/Makefile.am, src/coremsg.c,
src/coremutex.c, src/coresem.c, src/mpci.c,
src/objectcomparenameraw.c, src/objectextendinformation.c,
src/objectinitializeinformation.c, src/objectnametoid.c,
src/thread.c, src/threadclose.c, src/threadget.c, src/threadq.c,
src/threadqextractwithproxy.c: Modified as part of above.
* include/rtems/score/apimutex.h, src/objectgetnoprotection.c: New
files.
* include/rtems/score/thread.h, inline/rtems/score/thread.inl,
src/threaddispatch.c, src/threadinitialize.c:
Move the C library re-enterrant support directly into
the thread dispatch code. RTEMS needs libc and so requiring
libc to use a user extension with its overhead is not the best
solution. This patch lowers the overhead to 2 pointer moves.
* include/rtems/score/object.h, inline/rtems/score/object.inl,
src/objectcomparenamestring.c: Address PR81 that
reworked POSIX message queues to add a descriptor separate from
the underlying message queue. This allows non-blocking to follow
the "open" not the underlying queue. As part of debugging this
it became clear that _Objects_Compare_name_string was broken
and a simple version using strncmp() was substituted.
* Per PR142, make task switch extension its own list.
* include/rtems/score/userext.h: Reflect above by adding
User_extensions_Switch_control and adding it to User_extenions_Control.
* inline/rtems/score/userext.inl: Allocate all memory in one chunk
to minimize overhead. Address processing dedicated switch chain.
* include/rtems/system.h: Only include cpuopts.h when building a
multilib configuration. Some ports still need targopts.h but this
small modification lets those ports work non-multilib while
fixing being fixed for multilib.
This was tracked as PR91.
* include/rtems/score/isr.h, inline/rtems/score/isr.inl,
macros/rtems/score/isr.inl: Modified to allow any port to provide
its own implementation of the macro _ISR_Is_in_progress. If the
port overrides this macro, it must provide a non-inlined function
implementation.
Reported by Todor.Todorov@barco.com and tracked as PR36.
* include/rtems/score/object.h: Added prototype for
_Objects_Get_by_index().
* src/objectget.c, src/objectgetisr.c: Corrected procedure for
getting index from Id so it is correct and optimal for both single
and multiprocessor configurations.
* include/rtems/score/coremsg.h, src/coremsgsubmit.c: Add a new
return status to account for blocking sends. Otherwise, the
caller will think that the returned message status will have
the ultimate results of the operation. If the send times out,
the final status will be in the return_code of the thread.
* include/rtems/score/coremsg.h, inline/rtems/score/coremsg.inl,
src/coremsgsubmit.c: Unblocking message queue operations should
NOT use _Thread_Executing for return status since it is permissible
to invoke message send operations from an ISR. This was reported
by Suvrat Gupta <suvrat@utstar.com>.
* include/rtems/score/isr.h, src/isr.c: Allocate it from the
workspace rather than explicitly declaring it. This allows
the size to be a non-constant from the perspective of score/cpu.
* include/rtems/system.h: Use proper conditional (RTEMS_POSIX_API)
so prototypes for POSIX_MP_NOT_IMPLEMENTED(), POSIX_NOT_IMPLEMENTED(),
POSIX_BOTTOM_REACHED() are actually included.
* aclocal/canonicalize-tools.m4, aclocal/check-tool.m4,
aclocal/prog-cc.m4, aclocal/prog-cxx.m4: Replace AC_CHECK_TOOL
with an RTEMS specific but more restrictive autoconf macro.
* src/heapgetinfo.c, include/rtems/score/heap.h, src/Makefile.am:
Added _Heap_Get_information() and information control block.
* src/heapgetinfo.c: New file.
a BSP (c4xsim) supporting the simulator included with gdb. This port
was done by Joel Sherrill and Jennifer Averett of OAR Corporation.
Also included with this port is a space/time optimization to eliminate
FP context switch management on CPUs without hardware or software FP.
An issue with this port was that sizeof(unsigned32) = sizeof(unsigned8)
on this CPU. This required addressing alignment checks and assumptions
as well as fixing code that assumed sizeof(unsigned32) == 4.
routines and structures that require CPU model specific information
are now in libcpu. This primarily required moving erc32 specific
information from score/cpu files to libcpu/sparc and the erc32 BSP.
that decouples exec/ for the sh, m68k and i960 from targopts.h.
NOTE: The change to system.h is a hack to enable cpuopts.h
for some targets, but keep using targopts.h for others - I know it
does *not* work for sparc, mips, i386 and ppc. This will have
to be addressed as work continues on multilibing.
that addresses aspects of the targopts.h multilib related
issues.
Changes:
* Move targopts.h to libbsp/include, because the current targopts.h
actually is a per-BSP-header and therefore can not stay below exec/.
* Introduce an autoheader generated header file
(exec/score/include/rtems/score/cpuopts.h), which shall take per-cpu
configuration options only.
* Move all autoconf-detectable/configure specified per-cpu
option-defines from targopts.h to cpuopts.h.
* Add Makefiles to the libbsp/shared directory hierarchy.
Notes:
* The new per-bsp targopts.h in libbsp includes the per-cpu
cpuopts.h. This way, the new targopts.h is kept backward compatible
to the old targopts.h and existing BSPs which (carelessly) include
targopts.h (i386, ppc) should be kept working when using the
multilib-disabled configuration scheme.
* cpuopts.h is not yet complete, because the per-BSP make-targopts
rules from custom/<BSP>.cfg files can not be applied to files below
exec/ when building multilibs.
* All files below exec/ should not include targopts.h anymore, but
should include cpuopts.h instead. However, eliminating inclusion of
targopts.h currently triggers further structural / header file inclusion
related issues, because several ports apply BSP or CPU_MODEL specific
defines from targopts.h below exec/
