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* sparc64/rtems/score/cpu.h: Delete dead declarationJoel Sherrill2015-07-161-16/+0
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* powerpc: Do not use the ATB for e500 multilibSebastian Huber2015-07-151-1/+1
| | | | | | The e500v1 has no support for the ATB. Update #2369.
* powerpc: Fix _CPU_Counter_read()Nick Withers2015-07-151-1/+1
| | | | | | The mftb is not available on Book E processors. Use SPR 268 instead. Close #2369.
* libcsupport: Workaround for GCC 5.1 and laterSebastian Huber2015-07-152-2/+7
| | | | | Disable an optimization which would lead to a recursive calloc() call in calloc().
* libnetworking: Send the hostname if set in the network configuration.Chris Johns2015-07-141-2/+16
| | | | | This allows a suitably configured DHCP server with DDNS to enter the name into the DNS table making it addressiable via it's host name.
* score: Simplify _Thread_Lock_set()Sebastian Huber2015-07-131-11/+56
| | | | | Exploit the fact that the current thread lock must be the default thread lock and interrupts are disabled if we call _Thread_Lock_set().
* score: TypoSebastian Huber2015-07-131-2/+2
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* libmisc: Use SMP application by default on SMPSebastian Huber2015-07-081-0/+4
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* powerpc: Add BUCSR register definesSebastian Huber2015-07-081-0/+2
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* score: Simplify _SMP_ticket_lock_Release()Sebastian Huber2015-07-012-12/+13
| | | | | Add a SMP lock statistics pointer to SMP_lock_Stats_context and drop the SMP lock statistics parameter from _SMP_ticket_lock_Release().
* score: Accept NULL pointer in _Freechain_Put()Sebastian Huber2015-07-012-2/+5
| | | | With this a _Freechain_Put( _Freechain_Get() ) works always.
* score: Freechain handler API changesSebastian Huber2015-07-014-81/+85
| | | | | Replace the extend function with an allocator since this fits better to the current use case.
* score: Hide SMP lock profiling impl if disabledSebastian Huber2015-06-264-82/+131
| | | | The problem is that empty structures have a different size in C and C++.
* libmisc: Simplify <rtems/stackchk.h>Sebastian Huber2015-06-262-1/+2
| | | | | Drop the <rtems/score/percpu.h> include since this file exposes a lot of implementation details.
* score: Simplify <rtems/score/scheduler.h>Sebastian Huber2015-06-262-4/+5
| | | | | Drop the <rtems/score/percpu.h> include since this file exposes a lot of implementation details.
* score: Simplify <rtems/system.h>Sebastian Huber2015-06-2612-7/+12
| | | | | Drop the <rtems/score/percpu.h> include since this file exposes a lot of implementation details.
* score: Fix extern "C" in <rtems/score/heap.h>Sebastian Huber2015-06-251-2/+1
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* score: Simplify <rtems/score/thread.h>Sebastian Huber2015-06-255-44/+44
| | | | | | Avoid Thread_Control typedef in <rtems/score/percpu.h>. This helps to get rid of the <rtems/score/percpu.h> include in <rtems/score/thread.h> which exposes a lot of implementation details.
* score: Move default _ISR_Is_in_progress()Sebastian Huber2015-06-253-35/+53
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* score: Move SMP CPU_USE_DEFERRED_FP_SWITCH checkSebastian Huber2015-06-252-4/+4
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* score: Assert proper node sizeSebastian Huber2015-06-241-3/+4
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* rtems: Add rtems_interrupt_local_disable|enable()Sebastian Huber2015-06-222-2/+45
| | | | | | | | Add rtems_interrupt_local_disable|enable() as suggested by Pavel Pisa to emphasize that interrupts are only disabled on the current processor. Do not define the rtems_interrupt_disable|enable|flash() macros and functions on SMP configurations since they don't ensure system wide mutual exclusion.
* nfsclient: Use an interrupt lockSebastian Huber2015-06-191-21/+29
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* arm: Implement _CPU_ISR_Get_level() for ARMv7-MSebastian Huber2015-06-151-3/+3
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* Remove use ticks for statistics configure option.Joel Sherrill2015-06-1518-394/+147
| | | | | | | | | | This was obsolete and broken based upon recent time keeping changes. Thie build option was previously enabled by adding USE_TICKS_FOR_STATISTICS=1 to the configure command line. This propagated into the code as preprocessor conditionals using the __RTEMS_USE_TICKS_FOR_STATISTICS__ conditional.
* score: Add _Watchdog_Preinitialize()Sebastian Huber2015-06-137-5/+28
| | | | | | Add an assert to ensure that the watchdog is the proper state for a _Watchdog_Initialize(). This helps to detect invalid initializations which may lead to a corrupt watchdog chain.
* score: Delete unused state WATCHDOG_REMOVE_ITSebastian Huber2015-06-135-26/+4
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* rtems: Do not switch off the FP attributeSebastian Huber2015-06-111-4/+0
| | | | This is necessary after commit 335e5caa9a9e0f28acf94fe4c2871017fcd71794.
* Revert "timecounter: No _Timecounter_Tick_simple() for SMP"Sebastian Huber2015-06-111-6/+0
| | | | | | | | | This reverts commit 46ae1d7a2b49b8f973dd6ba44fbbd38383798524. The _Timecounter_Tick_simple() function actually doesn't switch to the next timehand, so it is all right to use the simple timecounter approach even on SMP configurations. The use of simple timecounters is not recommended however since they impose a performance penalty.
* timecounter: No _Timecounter_Tick_simple() for SMPSebastian Huber2015-06-091-0/+6
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* cpukit/rtems: Fix doc for rtems_clock_get_ticks_per_secondGedare Bloom2015-06-091-1/+1
| | | | closes #2357.
* timecounter: Synchronize with FreeBSDkib2015-06-091-42/+82
| | | | | | | | | | | | | | | | When updating/accessing the timehands, barriers are needed to ensure that: - th_generation update is visible after the parameters update is visible; - the read of parameters is not reordered before initial read of th_generation. On UP kernels, compiler barriers are enough. For SMP machines, CPU barriers must be used too, as was confirmed by submitter by testing on the Freescale T4240 platform with 24 PowerPC processors. Submitted by: Sebastian Huber <sebastian.huber@embedded-brains.de> MFC after: 1 week
* timecounter: Synchronize with FreeBSDian2015-06-091-5/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement a mechanism for making changes in the kernel<->driver PPS interface without breaking ABI or API compatibility with existing drivers. The existing data structures used to communicate between the kernel and driver portions of PPS processing contain no spare/padding fields and no flags field or other straightforward mechanism for communicating changes in the structures or behaviors of the code. This makes it difficult to MFC new features added to the PPS facility. ABI compatibility is important; out-of-tree drivers in module form are known to exist. (Note that the existing api_version field in the pps_params structure must contain the value mandated by RFC 2783 and any RFCs that come along after.) These changes introduce a pair of abi-version fields which are filled in by the driver and the kernel respectively to indicate the interface version. The driver sets its version field before calling the new pps_init_abi() function. That lets the kernel know how much of the pps_state structure is understood by the driver and it can avoid using newer fields at the end of the structure that it knows about if the driver is a lower version. The kernel fills in its version field during the init call, letting the driver know what features and data the kernel supports. To implement the new version information in a way that is backwards compatible with code from before these changes, the high bit of the lightly-used 'kcmode' field is repurposed as a flag bit that indicates the driver is aware of the abi versioning scheme. Basically if this bit is clear that indicates a "version 0" driver and if it is set the driver_abi field indicates the version. These changes also move the recently-added 'mtx' field of pps_state from the middle to the end of the structure, and make the kernel code that uses this field conditional on the driver being abi version 1 or higher. It changes the only driver currently supplying the mtx field, usb_serial, to use pps_init_abi(). Reviewed by: hselasky@
* timecounter: Synchronize with FreeBSDian2015-06-091-9/+10
| | | | Use sbuf_printf() for sysctl strings instead of stack buffers and snprintf().
* timecounter: Synchronize with FreeBSDhselasky2015-06-091-8/+6
| | | | | | | | Add mutex support to the pps_ioctl() API in the kernel. Bump kernel version to reflect structure change. PR: 196897 MFC after: 1 week
* score: Fix compiler memory barriers for atomic opsSebastian Huber2015-06-091-6/+18
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* sparc: Add SPARC_USE_SAFE_FP_SUPPORTSebastian Huber2015-06-093-4/+29
| | | | | | | | | | | | | | | | | | | | | | | | The SPARC ABI is a bit special with respect to the floating point context. The complete floating point context is volatile. Thus from an ABI point of view nothing needs to be saved and restored during a context switch. Instead the floating point context must be saved and restored during interrupt processing. Historically the deferred floating point switch is used for SPARC and the complete floating point context is saved and restored during a context switch to the new floating point unit owner. This is a bit dangerous since post-switch actions (e.g. signal handlers) and context switch extensions may silently corrupt the floating point context. The floating point unit is disabled for interrupt handlers. Thus in case an interrupt handler uses the floating point unit then this will result in a trap. On SMP configurations the deferred floating point switch is not supported in principle. So use here a safe floating point support. Safe means that the volatile floating point context is saved and restored around a thread dispatch issued during interrupt processing. Thus post-switch actions and context switch extensions may safely use the floating point unit. Update #2270.
* score: Add Thread_Control::is_fpSebastian Huber2015-06-095-12/+16
| | | | | | | | Store the floating-point unit property in the thread control block regardless of the CPU_HARDWARE_FP and CPU_SOFTWARE_FP settings. Make sure the floating-point unit is only enabled for the corresponding multilibs. This helps targets which have a volatile only floating point context like SPARC for example.
* rtems: Change CONTEXT_FP_SIZE defineSebastian Huber2015-06-031-1/+5
| | | | | | | Define CONTEXT_FP_SIZE to zero in case hardware and software floating point support is disabled. The problem is that empty structures have a different size in C and C++. In C++ they have a non-zero size leading to an overestimate of the workspace size.
* score: Remove assertSebastian Huber2015-06-031-6/+0
| | | | | | With the introduction of fine grained locking there is no longer a one-to-one connection between the Giant lock nest level and the thread dispatch disable level.
* posix: Fix _POSIX_Timer_Insert_helper() lockingSebastian Huber2015-06-031-5/+9
| | | | Close #2358.
* sparc: Disable FPU in interrupt contextAlexander Krutwig2015-05-302-1/+32
| | | | Update #2270.
* sparc: Remove superfluous FP enableSebastian Huber2015-05-302-22/+7
| | | | | | | The FP context save/restore makes only sense in the context of FP threads. Update #2270.
* sparc: Avoid new window for FP save/restoreSebastian Huber2015-05-301-54/+48
| | | | Update #2270.
* sparc: Improve _CPU_Context_validate()Alexander Krutwig2015-05-291-46/+49
| | | | | | | Write the pattern only once to the entry register window and the floating point registers. Update #2270.
* posix: Fix clock_gettime()Sebastian Huber2015-05-291-2/+0
| | | | | The _TOD_Get_zero_based_uptime_as_timespec() returns already the right value.
* dosfs: avoid buffer-overread. closes #2292.Gedare Bloom2015-05-271-2/+2
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* score: Replace _API_Mutex_Is_locked()Sebastian Huber2015-05-273-9/+12
| | | | Replace _API_Mutex_Is_locked() with _API_Mutex_Is_owner().
* sapi: Fix workspace size estimateSebastian Huber2015-05-271-2/+1
| | | | | Reserve a full minimum block to account for the heap protection enabled via RTEMS_DEBUG.
* sapi: Fix workspace size estimateSebastian Huber2015-05-271-4/+15
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