Merge SMP feature to main

.github/lexicon.txt

@@ -319,6 +319,7 @@ coprocessor
 coprocessors
 coreid
 coroutinehandle
+coverity
 covfs
 cp
 cpacr
@@ -340,31 +341,20 @@ cprivilegedonlyaccessarray
 cpsid
 cpsie
 cpsr
-cpsr
-cpstored
 cpstored
 cpu
-cpu
 cr
-cr
-crc
 crc
 crcb
 crcoroutine
-crcoroutine
-crdelay
 crdelay
 creadonlyarray
 creadwritearray
 createevent
 crend
-crend
 crgint
 croutine
-croutine
 crqueue
-crqueue
-crstart
 crstart
 crt
 crtv
@@ -1110,6 +1100,7 @@ mikroc
 min
 mingw
 minilistitem
+minimalidle
 mips
 misadd
 misc
@@ -1539,25 +1530,24 @@ prstc
 prttc
 prv
 prvaddcurrenttasktodelayedlist
+prvcheckforrunstatechange
 prvcheckinterfaces
 prvchecktaskswaitingtermination
 prvcopydatatoqueue
 prvcoroutineflashtask
-prvcoroutineflashtask
-prvcoroutineflashworktask
 prvcoroutineflashworktask
 prvdeletetcb
 prvexitfunction
 prvgettimens
 prvheapinit
 prvidletask
 prvinitialisecoroutinelists
-prvinitialisecoroutinelists
 prvinitialisemutex
 prvinitialisenewstreambuffer
 prvinitialisenewtimer
 prvinsertblockintofreelist
 prvlockqueue
+prvminimalidletask
 prvnotifyqueuesetcontainer
 prvportmalloc
 prvportresetpic
@@ -1575,6 +1565,7 @@ prvtickcount
 prvtimercallback
 prvwritebytestobuffer
 prvwritemessagetobuffer
+prvyieldfortask
 prvyieldhandler
 ps
 psp
@@ -1668,13 +1659,10 @@ pxcallbackfunction
 pxcode
 pxcontainer
 pxcoroutinecode
-pxcoroutinecode
-pxcoroutinewoken
 pxcoroutinewoken
 pxcrcb
 pxcreatedtask
 pxcurrentcoroutine
-pxcurrentcoroutine
 pxcurrenttcb
 pxcurrenttcbconst
 pxcurrenttimerlist
@@ -1795,6 +1783,7 @@ rdc
 rdr
 rdrf
 rdy
+reacquisition
 readbit
 readme
 readvalue
@@ -2439,6 +2428,7 @@ uxbitstoset
 uxbitstowait
 uxbitstowaitfor
 uxcontrolbits
+uxcoreaffinitymask
 uxcriticalnesting
 uxcurrenteventbits
 uxcurrentnumberoftasks
@@ -2462,9 +2452,12 @@ uxlength
 uxlistremove
 uxmaxcount
 uxmessageswaiting
+uxnetworkingcoreaffinitymask
 uxnewpriority
 uxoriginalpriority
+uxpendedcounts
 uxportcomparesetextram
+uxprevschedulersuspended
 uxpriority
 uxprioritytouse
 uxqueue
@@ -2483,6 +2476,7 @@ uxsemaphoregetcount
 uxsemaphoregetcountfromisr
 uxstate
 uxstreambuffernumber
+uxtaskattributes
 uxtaskgetnumberoftasks
 uxtaskgetstackhighwatermark
 uxtaskgetsystemstate
@@ -2516,6 +2510,7 @@ vapplicationgettimertaskmemory
 vapplicationidlehook
 vapplicationirqhandler
 vapplicationmallocfailedhook
+vapplicationminimalidlehook
 vapplicationsetuptickinterrupt
 vapplicationsetupticktimerinterrupt
 vapplicationsetuptimerinterrupt
@@ -2618,12 +2613,15 @@ vstreambufferdelete
 vtask
 vtaskallocatempuregions
 vtaskcode
+vtaskcoreaffinityget
+vtaskcoreaffinityset
 vtaskdelay
 vtaskdelayuntil
 vtaskdelete
 vtaskendscheduler
 vtaskentercritical
 vtaskexitcritical
+vtaskexitcriticalfromisr
 vtaskfunction
 vtaskgetinfo
 vtaskgetruntimestats
@@ -2632,6 +2630,8 @@ vtasknotify
 vtasknotifygivefromisr
 vtasknotifygiveindexedfromisr
 vtaskplaceoneventlist
+vtaskpreemptiondisable
+vtaskpreemptionenable
 vtaskpriorityset
 vtaskremovefromunorderedeventlist
 vtaskresume
@@ -2645,6 +2645,7 @@ vtasksteptick
 vtasksuspend
 vtasksuspendall
 vtaskswitchcontext
+vtaskswitchcontextforcore
 vtaskusesdpfpu
 vtickisr
 vtimercallback
@@ -2742,6 +2743,8 @@ xcommandtime
 xcommsrxqueue
 xconsttickcount
 xcopyposition
+xcore
+xcoreid
 xcoroutinecreate
 xcoroutinepreviouslywoken
 xcoroutinequeue
@@ -2824,6 +2827,8 @@ xhigherpriorittaskwoken
 xhigherprioritytaskwoken
 xhigherprioritytaskwokenbypost
 xidletaskhandle
+xidletaskhandles
+xidletcbbuffers
 xilinx
 xindex
 xinheritanceoccurred
@@ -2843,6 +2848,9 @@ xlastwaketime
 xlength
 xlist
 xlistend
+xlowestpriority
+xlowestprioritycore
+xlowestprioritytopreempt
 xmair
 xmaxcount
 xmaxexpirycountbeforestopping
@@ -2881,6 +2889,7 @@ xmutexbuffer
 xmutexholder
 xn
 xnearstartscheduler
+xnetworkingtaskhandle
 xnewperiod
 xnewqueue
 xnextexpiretime
@@ -2913,6 +2922,7 @@ xportregistercinterrupthandler
 xportregisterdump
 xportstartfirsttask
 xportstartscheduler
+xpreemptiondisable
 xpsr
 xqueue
 xqueueaddtoset
@@ -3026,6 +3036,7 @@ xtail
 xtal
 xtask
 xtaskabortdelay
+xtaskattribute
 xtaskbuffer
 xtaskcallapplicationtaskhook
 xtaskcatchupticks
@@ -3072,6 +3083,7 @@ xtasknumber
 xtaskremovefromeventlist
 xtaskresumeall
 xtaskresumefromisr
+xtaskrunstate
 xtaskswaitingforbits
 xtaskswaitingtermination
 xtaskswaitingtoreceive
@@ -3108,6 +3120,7 @@ xtimercreate
 xtimercreated
 xtimercreatestatic
 xtimerdelete
+xtimergenericcommand
 xtimergetexpirytime
 xtimergetperiod
 xtimergetreloadmode
@@ -3143,5 +3156,8 @@ xwantedsize
 xwasdelayed
 xwritevalue
 xxr
+xyieldfortask
 xyieldpending
+xyieldpendings
 xzr
+yeilding

.github/scripts/kernel_checker.py

@@ -87,7 +87,8 @@
     r'.*\.git.*',
     r'.*portable/IAR/AtmelSAM7S64/.*AT91SAM7.*',
     r'.*portable/GCC/ARM7_AT91SAM7S/.*',
-    r'.*portable/MPLAB/PIC18F/stdio.h'
+    r'.*portable/MPLAB/PIC18F/stdio.h',
+    r'.*portable/ThirdParty/xClang/XCOREAI/*'
 ]
 
 KERNEL_THIRD_PARTY_PATTERNS = [

MISRA.md

@@ -0,0 +1,72 @@
+# MISRA Compliance
+
+FreeRTOS-Kernel conforms to [MISRA C:2012](https://www.misra.org.uk/misra-c)
+guidelines, with the deviations listed below. Compliance is checked with
+Coverity static analysis. Since the FreeRTOS kernel is designed for
+small-embedded devices, it needs to have a very small memory footprint and
+has to be efficient. To achieve that and to increase the performance, it
+deviates from some MISRA rules. The specific deviations, suppressed inline,
+are listed below.
+
+Additionally, [MISRA configuration](#misra-configuration) contains project
+wide deviations.
+
+### Suppressed with Coverity Comments
+To find the violation references in the source files run grep on the source code
+with ( Assuming rule 8.4 violation; with justification in point 1 ):
+```
+grep 'MISRA Ref 8.4.1' . -rI
+```
+
+#### Rule 8.4
+
+_Ref 8.4.1_
+
+- MISRA C:2012 Rule 8.4: A compatible declaration shall be visible when an
+        object or function with external linkage is defined.
+        This rule requires that a compatible declaration is made available
+        in a header file when an object with external linkage is defined.
+        pxCurrentTCB(s) is defined with external linkage but it is only
+        referenced from the assembly code in the port files. Therefore, adding
+        a declaration in header file is not useful as the assembly code will
+        still need to declare it separately.
+
+### MISRA configuration
+
+Copy below content to `misra.conf` to run Coverity on FreeRTOS-Kernel.
+
+```
+// MISRA C-2012 Rules
+{
+    version : "2.0",
+    standard : "c2012",
+    title: "Coverity MISRA Configuration",
+    deviations : [
+        // Disable the following rules.
+        {
+            deviation: "Directive 4.8",
+            reason: "HeapRegion_t and HeapStats_t are used only in heap files but declared in portable.h which is included in multiple source files. As a result, these definitions appear in multiple source files where they are not used."
+        },
+        {
+            deviation: "Directive 4.9",
+            reason: "FreeRTOS-Kernel is optimised to work on small micro-controllers. To achieve that, function-like macros are used."
+        },
+        {
+            deviation: "Rule 1.2",
+            reason: "The __attribute__ tags are used via macros which are defined in port files."
+        },
+        {
+            deviation: "Rule 3.1",
+            reason: "We post HTTP links in code comments which contain // inside comments blocks."
+        },
+        {
+            deviation: "Rule 8.7",
+            reason: "API functions are not used by the library outside of the files they are defined; however, they must be externally visible in order to be used by an application."
+        },
+        {
+            deviation: "Rule 11.5",
+            reason: "Allow casts from `void *`. List owner, pvOwner, is stored as `void *` and are cast to various types for use in functions."
+        }
+    ]
+}
+```

event_groups.c

@@ -263,7 +263,15 @@
     {
         if( xAlreadyYielded == pdFALSE )
         {
-            portYIELD_WITHIN_API();
+            #if ( configNUMBER_OF_CORES == 1 )
+            {
+                portYIELD_WITHIN_API();
+            }
+            #else /* #if ( configNUMBER_OF_CORES == 1 ) */
+            {
+                vTaskYieldWithinAPI();
+            }
+            #endif /* #if ( configNUMBER_OF_CORES == 1 ) */
         }
         else
         {
@@ -415,7 +423,15 @@
     {
         if( xAlreadyYielded == pdFALSE )
         {
-            portYIELD_WITHIN_API();
+            #if ( configNUMBER_OF_CORES == 1 )
+            {
+                portYIELD_WITHIN_API();
+            }
+            #else /* #if ( configNUMBER_OF_CORES == 1 ) */
+            {
+                vTaskYieldWithinAPI();
+            }
+            #endif /* #if ( configNUMBER_OF_CORES == 1 ) */
         }
         else
         {
@@ -525,11 +541,11 @@
     EventGroup_t const * const pxEventBits = xEventGroup;
     EventBits_t uxReturn;
 
-    uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+    uxSavedInterruptStatus = taskENTER_CRITICAL_FROM_ISR();
     {
         uxReturn = pxEventBits->uxEventBits;
     }
-    portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
+    taskEXIT_CRITICAL_FROM_ISR( uxSavedInterruptStatus );
 
     return uxReturn;
 } /*lint !e818 EventGroupHandle_t is a typedef used in other functions to so can't be pointer to const. */