LKMM updates for review

index 8dcb37835b61..834107022c50 100644
@@ -24,8 +24,14 @@ include "lock.cat"
 (* Basic relations *)
 (*******************)
 
+(* Release Acquire *)
+let acq-po = [Acquire] ; po ; [M]
+let po-rel = [M] ; po ; [Release]
+let po-unlock-rf-lock-po = po ; [UL] ; rf ; [LKR] ; po
+
 (* Fences *)
-let rmb = [R \ Noreturn] ; fencerel(Rmb) ; [R \ Noreturn]
+let R4rmb = R \ Noreturn	(* Reads for which rmb works *)
+let rmb = [R4rmb] ; fencerel(Rmb) ; [R4rmb]
 let wmb = [W] ; fencerel(Wmb) ; [W]
 let mb = ([M] ; fencerel(Mb) ; [M]) |
 	([M] ; fencerel(Before-atomic) ; [RMW] ; po? ; [M]) |

@@ -34,13 +40,10 @@ let mb = ([M] ; fencerel(Mb) ; [M]) |
 	([M] ; po ; [UL] ; (co | po) ; [LKW] ;
 		fencerel(After-unlock-lock) ; [M])
 let gp = po ; [Sync-rcu | Sync-srcu] ; po?
-
 let strong-fence = mb | gp
 
-(* Release Acquire *)
-let acq-po = [Acquire] ; po ; [M]
-let po-rel = [M] ; po ; [Release]
-let po-unlock-rf-lock-po = po ; [UL] ; rf ; [LKR] ; po
+let nonrw-fence = strong-fence | po-rel | acq-po
+let fence = nonrw-fence | wmb | rmb
 
 (**********************************)
 (* Fundamental coherence ordering *)

@@ -63,7 +66,6 @@ let rwdep = (dep | ctrl) ; [W]
 let overwrite = co | fr
 let to-w = rwdep | (overwrite & int)
 let to-r = addr | (dep ; rfi)
-let fence = strong-fence | wmb | po-rel | rmb | acq-po
 let ppo = to-r | to-w | fence | (po-unlock-rf-lock-po & int)
 
 (* Propagation: Ordering from release operations and strong fences. *)

index def9131d3d8e..b60eb5a01053 100644
@@ -76,3 +76,8 @@ flag ~empty rcu-rscs & (po ; [Sync-srcu] ; po) as invalid-sleep
 
 (* Validate SRCU dynamic match *)
 flag ~empty different-values(srcu-rscs) as srcu-bad-nesting
+
+(* Compute marked and plain memory accesses *)
+let Marked = (~M) | IW | Once | Release | Acquire | domain(rmw) | range(rmw) |
+		LKR | LKW | UL | LF | RL | RU
+let Plain = M \ Marked

index 834107022c50..ff354e5ffd4b 100644
@@ -65,19 +65,21 @@ let dep = addr | data
 let rwdep = (dep | ctrl) ; [W]
 let overwrite = co | fr
 let to-w = rwdep | (overwrite & int)
-let to-r = addr | (dep ; rfi)
+let to-r = addr | (dep ; [Marked] ; rfi)
 let ppo = to-r | to-w | fence | (po-unlock-rf-lock-po & int)
 
 (* Propagation: Ordering from release operations and strong fences. *)
-let A-cumul(r) = rfe? ; r
-let cumul-fence = A-cumul(strong-fence | po-rel) | wmb | po-unlock-rf-lock-po
-let prop = (overwrite & ext)? ; cumul-fence* ; rfe?
+let A-cumul(r) = (rfe ; [Marked])? ; r
+let cumul-fence = [Marked] ; (A-cumul(strong-fence | po-rel) | wmb |
+	po-unlock-rf-lock-po) ; [Marked]
+let prop = [Marked] ; (overwrite & ext)? ; cumul-fence* ;
+	[Marked] ; rfe? ; [Marked]
 
 (*
  * Happens Before: Ordering from the passage of time.
  * No fences needed here for prop because relation confined to one process.
  *)
-let hb = ppo | rfe | ((prop \ id) & int)
+let hb = [Marked] ; (ppo | rfe | ((prop \ id) & int)) ; [Marked]
 acyclic hb as happens-before
 
 (****************************************)

@@ -85,7 +87,7 @@ acyclic hb as happens-before
 (****************************************)
 
 (* Propagation: Each non-rf link needs a strong fence. *)
-let pb = prop ; strong-fence ; hb*
+let pb = prop ; strong-fence ; hb* ; [Marked]
 acyclic pb as propagation
 
 (*******)

@@ -133,7 +135,7 @@ let rec rcu-fence = rcu-gp | srcu-gp |
 	(rcu-fence ; rcu-link ; rcu-fence)
 
 (* rb orders instructions just as pb does *)
-let rb = prop ; po ; rcu-fence ; po? ; hb* ; pb*
+let rb = prop ; po ; rcu-fence ; po? ; hb* ; pb* ; [Marked]
 
 irreflexive rb as rcu
 

index b60eb5a01053..5be86b1025e8 100644
@@ -24,6 +24,7 @@ instructions RMW[{'once,'acquire,'release}]
 enum Barriers = 'wmb (*smp_wmb*) ||
 		'rmb (*smp_rmb*) ||
 		'mb (*smp_mb*) ||
+		'barrier (*barrier*) ||
 		'rcu-lock (*rcu_read_lock*)  ||
 		'rcu-unlock (*rcu_read_unlock*) ||
 		'sync-rcu (*synchronize_rcu*) ||

65 lines not on this page · raw message

index 551eeaa389d4..ef0f3c1850de 100644
@@ -24,6 +24,7 @@ smp_mb__before_atomic() { __fence{before-atomic}; }
 smp_mb__after_atomic() { __fence{after-atomic}; }
 smp_mb__after_spinlock() { __fence{after-spinlock}; }
 smp_mb__after_unlock_lock() { __fence{after-unlock-lock}; }
+barrier() { __fence{barrier}; }
 
 // Exchange
 xchg(X,V)  __xchg{mb}(X,V)

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index dca3fb0554db..b3afe69d03a1 100644
@@ -187,8 +187,14 @@ The barriers:
 
   smp_mb__{before,after}_atomic()
 
-only apply to the RMW ops and can be used to augment/upgrade the ordering
-inherent to the used atomic op. These barriers provide a full smp_mb().
+only apply to the RMW atomic ops and can be used to augment/upgrade the
+ordering inherent to the op. These barriers act almost like a full smp_mb():
+smp_mb__before_atomic() orders all earlier accesses against the RMW op
+itself and all accesses following it, and smp_mb__after_atomic() orders all
+later accesses against the RMW op and all accesses preceding it. However,
+accesses between the smp_mb__{before,after}_atomic() and the RMW op are not
+ordered, so it is advisable to place the barrier right next to the RMW atomic
+op whenever possible.
 
 These helper barriers exist because architectures have varying implicit
 ordering on their SMP atomic primitives. For example our TSO architectures

@@ -212,7 +218,9 @@ Further, while something like:
   atomic_dec(&X);
 
 is a 'typical' RELEASE pattern, the barrier is strictly stronger than
-a RELEASE. Similarly for something like:
+a RELEASE because it orders preceding instructions against both the read
+and write parts of the atomic_dec(), and against all following instructions
+as well. Similarly, something like:
 
   atomic_inc(&X);
   smp_mb__after_atomic();

@@ -244,7 +252,8 @@ strictly stronger than ACQUIRE. As illustrated:
 
 This should not happen; but a hypothetical atomic_inc_acquire() --
 (void)atomic_fetch_inc_acquire() for instance -- would allow the outcome,
-since then:
+because it would not order the W part of the RMW against the following
+WRITE_ONCE.  Thus:
 
   P1			P2
 

index b2b60b84fb9d..172f0145301c 100644
@@ -1,7 +1,7 @@
 C MP+poonceonces
 
 (*
- * Result: Maybe
+ * Result: Sometimes
  *
  * Can the counter-intuitive message-passing outcome be prevented with
  * no ordering at all?

index 5ee08f129094..681f9067fa9e 100644
@@ -244,7 +244,7 @@ produce the name:
 Adding the ".litmus" suffix: SB+rfionceonce-poonceonces.litmus
 
 The descriptors that describe connections between consecutive accesses
-within the cycle through a given litmus test can be provided by the herd
+within the cycle through a given litmus test can be provided by the herd7
 tool (Rfi, Po, Fre, and so on) or by the linux-kernel.bell file (Once,
 Release, Acquire, and so on).
 

index a059d1a6d8a2..6b52f365d73a 100644
@@ -11,7 +11,7 @@
 include "cross.cat"
 
 (*
- * The lock-related events generated by herd are as follows:
+ * The lock-related events generated by herd7 are as follows:
  *
  * LKR		Lock-Read: the read part of a spin_lock() or successful
  *			spin_trylock() read-modify-write event pair

index 29375a1fbbfa..095c7eb36f9f 100644
@@ -22,7 +22,7 @@ checklitmushist.sh
 
 	Run all litmus tests having .litmus.out files from previous
 	initlitmushist.sh or newlitmushist.sh runs, comparing the
-	herd output to that of the original runs.
+	herd7 output to that of the original runs.
 
 checklitmus.sh
 

@@ -43,7 +43,7 @@ initlitmushist.sh
 
 judgelitmus.sh
 
-	Given a .litmus file and its .litmus.out herd output, check the
+	Given a .litmus file and its .litmus.out herd7 output, check the
 	.litmus.out file against the .litmus file's "Result:" comment to
 	judge whether the test ran correctly.  Not normally run manually,
 	provided instead for use by other scripts.

index b35fcd61ecf6..3c0c7fbbd223 100755
@@ -1,7 +1,7 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0+
 #
-# Run herd tests on all .litmus files in the litmus-tests directory
+# Run herd7 tests on all .litmus files in the litmus-tests directory
 # and check each file's result against a "Result:" comment within that
 # litmus test.  If the verification result does not match that specified
 # in the litmus test, this script prints an error message prefixed with

index dd08801a30b0..11461ed40b5e 100755
@@ -1,7 +1,7 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0+
 #
-# Run a herd test and invokes judgelitmus.sh to check the result against
+# Run a herd7 test and invokes judgelitmus.sh to check the result against
 # a "Result:" comment within the litmus test.  It also outputs verification
 # results to a file whose name is that of the specified litmus test, but
 # with ".out" appended.

index 859e1d581e05..40f52080fdbd 100755
@@ -91,7 +91,7 @@ do
 		shift
 		;;
 	--herdopts|--herdopt)
-		checkarg --destdir "(herd options)" "$#" "$2" '.*' '^--'
+		checkarg --destdir "(herd7 options)" "$#" "$2" '.*' '^--'
 		LKMM_HERD_OPTIONS="$2"
 		shift
 		;;

index e507f5f933d5..6ed376f495bb 100755
@@ -79,7 +79,7 @@ then
 	echo ' ---' Summary: 1>&2
 	grep '!!!' $T/*.sh.out 1>&2
 	nfail="`grep '!!!' $T/*.sh.out | wc -l`"
-	echo 'Number of failed herd runs (e.g., timeout): ' $nfail 1>&2
+	echo 'Number of failed herd7 runs (e.g., timeout): ' $nfail 1>&2
 	exit 1
 else
 	echo All runs completed successfully. 1>&2

index 0cc63875e395..d3c313b9a458 100755
@@ -42,6 +42,14 @@ grep '^Observation' $LKMM_DESTDIR/$litmus.out
 if grep -q '^Observation' $LKMM_DESTDIR/$litmus.out
 then
 	:
+elif grep '^Command exited with non-zero status 124' $LKMM_DESTDIR/$litmus.out
+then
+	echo ' !!! Timeout' $litmus
+	if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+	then
+		echo ' !!! Timeout' >> $LKMM_DESTDIR/$litmus.out 2>&1
+	fi
+	exit 124
 else
 	echo ' !!! Verification error' $litmus
 	if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out

index 0f498aeeccf5..b9c174dd8004 100755
@@ -12,12 +12,30 @@ trap 'rm -rf $T' 0
 mkdir $T
 
 # comparetest oldpath newpath
+timedout=0
 perfect=0
 obsline=0
 noobsline=0
 obsresult=0
 badcompare=0
 comparetest () {
+	if grep -q '^Command exited with non-zero status 124' $1 ||
+	   grep -q '^Command exited with non-zero status 124' $2
+	then
+		if grep -q '^Command exited with non-zero status 124' $1 &&
+		   grep -q '^Command exited with non-zero status 124' $2
+		then
+			echo Both runs timed out: $2
+		elif grep -q '^Command exited with non-zero status 124' $1
+		then
+			echo Old run timed out: $2
+		elif grep -q '^Command exited with non-zero status 124' $2
+		then
+			echo New run timed out: $2
+		fi
+		timedout=`expr "$timedout" + 1`
+		return 0
+	fi
 	grep -v 'maxresident)k\|minor)pagefaults\|^Time' $1 > $T/oldout
 	grep -v 'maxresident)k\|minor)pagefaults\|^Time' $2 > $T/newout
 	if cmp -s $T/oldout $T/newout && grep -q '^Observation' $1

@@ -78,6 +96,10 @@ if test "$obsresult" -ne 0
 then
 	echo Matching Observation Always/Sometimes/Never result: $obsresult 1>&2
 fi
+if test "$timedout" -ne 0
+then
+	echo "!!!" Timed out: $timedout 1>&2
+fi
 if test "$badcompare" -ne 0
 then
 	echo "!!!" Result changed: $badcompare 1>&2

index b9c174dd8004..ca1ac8b64614 100755
@@ -12,6 +12,7 @@ trap 'rm -rf $T' 0
 mkdir $T
 
 # comparetest oldpath newpath
+badmacnam=0
 timedout=0
 perfect=0
 obsline=0

@@ -19,8 +20,26 @@ noobsline=0
 obsresult=0
 badcompare=0
 comparetest () {
-	if grep -q '^Command exited with non-zero status 124' $1 ||
-	   grep -q '^Command exited with non-zero status 124' $2
+	if grep -q ': Unknown macro ' $1 || grep -q ': Unknown macro ' $2
+	then
+		if grep -q ': Unknown macro ' $1
+		then
+			badname=`grep ': Unknown macro ' $1 |
+				sed -e 's/^.*: Unknown macro //' |
+				sed -e 's/ (User error).*$//'`
+			echo 'Current LKMM version does not know "'$badname'"' $1
+		fi
+		if grep -q ': Unknown macro ' $2
+		then
+			badname=`grep ': Unknown macro ' $2 |
+				sed -e 's/^.*: Unknown macro //' |
+				sed -e 's/ (User error).*$//'`
+			echo 'Current LKMM version does not know "'$badname'"' $2
+		fi
+		badmacnam=`expr "$badmacnam" + 1`
+		return 0
+	elif grep -q '^Command exited with non-zero status 124' $1 ||
+	     grep -q '^Command exited with non-zero status 124' $2
 	then
 		if grep -q '^Command exited with non-zero status 124' $1 &&
 		   grep -q '^Command exited with non-zero status 124' $2

@@ -56,7 +75,7 @@ comparetest () {
 			return 0
 		fi
 	else
-		echo Missing Observation line "(e.g., herd7 timeout)": $2
+		echo Missing Observation line "(e.g., syntax error)": $2
 		noobsline=`expr "$noobsline" + 1`
 		return 0
 	fi

@@ -90,7 +109,7 @@ then
 fi
 if test "$noobsline" -ne 0
 then
-	echo Missing Observation line "(e.g., herd7 timeout)": $noobsline 1>&2
+	echo Missing Observation line "(e.g., syntax error)": $noobsline 1>&2
 fi
 if test "$obsresult" -ne 0
 then

@@ -100,6 +119,10 @@ if test "$timedout" -ne 0
 then
 	echo "!!!" Timed out: $timedout 1>&2
 fi
+if test "$badmacnam" -ne 0
+then
+	echo "!!!" Unknown primitive: $badmacnam 1>&2
+fi
 if test "$badcompare" -ne 0
 then
 	echo "!!!" Result changed: $badcompare 1>&2

index d3c313b9a458..d40439c7b71e 100755
@@ -42,6 +42,18 @@ grep '^Observation' $LKMM_DESTDIR/$litmus.out
 if grep -q '^Observation' $LKMM_DESTDIR/$litmus.out
 then
 	:
+elif grep ': Unknown macro ' $LKMM_DESTDIR/$litmus.out
+then
+	badname=`grep ': Unknown macro ' $LKMM_DESTDIR/$litmus.out |
+		sed -e 's/^.*: Unknown macro //' |
+		sed -e 's/ (User error).*$//'`
+	badmsg=' !!! Current LKMM version does not know "'$badname'"'" $litmus"
+	echo $badmsg
+	if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+	then
+		echo ' !!! '$badmsg >> $LKMM_DESTDIR/$litmus.out 2>&1
+	fi
+	exit 254
 elif grep '^Command exited with non-zero status 124' $LKMM_DESTDIR/$litmus.out
 then
 	echo ' !!! Timeout' $litmus

index d40439c7b71e..84c62eee321b 100755
@@ -83,6 +83,14 @@ then
 		fi
 		ret=1
 	fi
+elif grep '^Observation' $LKMM_DESTDIR/$litmus.out | grep -q 'Never 0 0$'
+then
+	echo " !!! Unexpected non-$outcome deadlock" $litmus
+	if ! grep -q '!!!' $LKMM_DESTDIR/$litmus.out
+	then
+		echo " !!! Unexpected non-$outcome deadlock" $litmus >> $LKMM_DESTDIR/$litmus.out 2>&1
+	fi
+	ret=1
 elif grep '^Observation' $LKMM_DESTDIR/$litmus.out | grep -q $outcome || test "$outcome" = Maybe
 then
 	ret=0

index 3c0c7fbbd223..10e14d94acee 100755
@@ -17,7 +17,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 . scripts/parseargs.sh
 

index 11461ed40b5e..638b8c610894 100755
@@ -15,7 +15,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 litmus=$1
 herdoptions=${LKMM_HERD_OPTIONS--conf linux-kernel.cfg}

index 1d210ffb7c8a..406ecfc0aee4 100755
@@ -12,7 +12,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 . scripts/parseargs.sh
 

index 84c62eee321b..d82133e75580 100755
@@ -13,7 +13,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 litmus=$1
 

index 991f8f814881..3f4b06e29988 100755
@@ -12,7 +12,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 . scripts/parseargs.sh
 

index 40f52080fdbd..afe7bd23de6b 100755
@@ -9,7 +9,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 T=/tmp/parseargs.sh.$$
 mkdir $T

index 6ed376f495bb..852786fef179 100755
@@ -13,7 +13,7 @@
 #
 # Copyright IBM Corporation, 2018
 #
-# Author: Paul E. McKenney <[email protected]>
+# Author: Paul E. McKenney <[email protected]>
 
 T=/tmp/runlitmushist.sh.$$
 trap 'rm -rf $T' 0

index afe7bd23de6b..5f016fc3f3af 100755
@@ -27,6 +27,7 @@ initparam () {
 
 initparam LKMM_DESTDIR "."
 initparam LKMM_HERD_OPTIONS "-conf linux-kernel.cfg"
+initparam LKMM_HW_MAP_FILE ""
 initparam LKMM_JOBS `getconf _NPROCESSORS_ONLN`
 initparam LKMM_PROCS "3"
 initparam LKMM_TIMEOUT "1m"

@@ -37,10 +38,11 @@ usagehelp () {
 	echo "Usage $scriptname [ arguments ]"
 	echo "      --destdir path (place for .litmus.out, default by .litmus)"
 	echo "      --herdopts -conf linux-kernel.cfg ..."
+	echo "      --hw AArch64"
 	echo "      --jobs N (number of jobs, default one per CPU)"
 	echo "      --procs N (litmus tests with at most this many processes)"
 	echo "      --timeout N (herd7 timeout (e.g., 10s, 1m, 2hr, 1d, '')"
-	echo "Defaults: --destdir '$LKMM_DESTDIR_DEF' --herdopts '$LKMM_HERD_OPTIONS_DEF' --jobs '$LKMM_JOBS_DEF' --procs '$LKMM_PROCS_DEF' --timeout '$LKMM_TIMEOUT_DEF'"
+	echo "Defaults: --destdir '$LKMM_DESTDIR_DEF' --herdopts '$LKMM_HERD_OPTIONS_DEF' --hw '$LKMM_HW_MAP_FILE' --jobs '$LKMM_JOBS_DEF' --procs '$LKMM_PROCS_DEF' --timeout '$LKMM_TIMEOUT_DEF'"
 	exit 1
 }
 

@@ -95,6 +97,11 @@ do
 		LKMM_HERD_OPTIONS="$2"
 		shift
 		;;
+	--hw)
+		checkarg --hw "(.map file architecture name)" "$#" "$2" '^[A-Za-z0-9_-]\+' '^--'
+		LKMM_HW_MAP_FILE="$2"
+		shift
+		;;
 	-j[1-9]*)
 		njobs="`echo $1 | sed -e 's/^-j//'`"
 		trailchars="`echo $njobs | sed -e 's/[0-9]\+\(.*\)$/\1/'`"

index 095c7eb36f9f..0e29a52044c1 100644
@@ -43,10 +43,10 @@ initlitmushist.sh
 
 judgelitmus.sh
 
-	Given a .litmus file and its .litmus.out herd7 output, check the
-	.litmus.out file against the .litmus file's "Result:" comment to
-	judge whether the test ran correctly.  Not normally run manually,
-	provided instead for use by other scripts.
+	Given a .litmus file and its herd7 output, check the output file
+	against the .litmus file's "Result:" comment to judge whether
+	the test ran correctly.  Not normally run manually, provided
+	instead for use by other scripts.
 
 newlitmushist.sh
 

136 lines not on this page · raw message

new file mode 100755
index 000000000000..7edc5d361665
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Give zero status if this is a simple test and non-zero otherwise.
+# Simple tests do not contain locking, RCU, or SRCU.
+#
+# Usage:
+#	simpletest.sh file.litmus
+#
+# Copyright IBM Corporation, 2019
+#
+# Author: Paul E. McKenney <[email protected]>
+
+
+litmus=$1
+
+if test -f "$litmus" -a -r "$litmus"
+then
+	:
+else
+	echo ' --- ' error: \"$litmus\" is not a readable file
+	exit 255
+fi
+exclude="^[[:space:]]*\("
+exclude="${exclude}spin_lock(\|spin_unlock(\|spin_trylock(\|spin_is_locked("
+exclude="${exclude}\|rcu_read_lock(\|rcu_read_unlock("
+exclude="${exclude}\|synchronize_rcu(\|synchronize_rcu_expedited("
+exclude="${exclude}\|srcu_read_lock(\|srcu_read_unlock("
+exclude="${exclude}\|synchronize_srcu(\|synchronize_srcu_expedited("
+exclude="${exclude}\)"
+if grep -q $exclude $litmus
+then
+	exit 255
+fi
+exit 0

index 10e14d94acee..54d8da8c338e 100755
@@ -30,8 +30,8 @@ else
 	exit 255
 fi
 
-# Create any new directories that have appeared in the github litmus
-# repo since the last run.
+# Create any new directories that have appeared in the litmus-tests
+# directory since the last run.
 if test "$LKMM_DESTDIR" != "."
 then
 	find $litmusdir -type d -print |

index 54d8da8c338e..2d3ee850a839 100755
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0+
 #
 # Run herd7 tests on all .litmus files in the litmus-tests directory

@@ -8,6 +8,11 @@
 # "^^^".  It also outputs verification results to a file whose name is
 # that of the specified litmus test, but with ".out" appended.
 #
+# If the --hw argument is specified, this script translates the .litmus
+# C-language file to the specified type of assembly and verifies that.
+# But in this case, litmus tests using complex synchronization (such as
+# locking, RCU, and SRCU) are cheerfully ignored.
+#
 # Usage:
 #	checkalllitmus.sh
 #

@@ -38,21 +43,15 @@ then
 	( cd "$LKMM_DESTDIR"; sed -e 's/^/mkdir -p /' | sh )
 fi
 
-# Find the checklitmus script.  If it is not where we expect it, then
-# assume that the caller has the PATH environment variable set
-# appropriately.
-if test -x scripts/checklitmus.sh
-then
-	clscript=scripts/checklitmus.sh
-else
-	clscript=checklitmus.sh
-fi
-
 # Run the script on all the litmus tests in the specified directory
 ret=0
 for i in $litmusdir/*.litmus
 do
-	if ! $clscript $i
+	if test -n "$LKMM_HW_MAP_FILE" && ! scripts/simpletest.sh $i
+	then
+		continue
+	fi
+	if ! scripts/checklitmus.sh $i
 	then
 		ret=1
 	fi

59 lines not on this page · raw message

index 6f3c60065c8b..fe9131f8eb96 100755
@@ -8,7 +8,9 @@
 # is provided, this is assumed to be a hardware test, and the output is
 # assumed to be in file.HW.litmus.out, where "HW" is the --hw argument.
 # In addition, non-Sometimes verification results will be noted, but
-# forgiven.
+# forgiven.  Furthermore, if there is no "Result:" comment but there is
+# an LKMM .litmus.out file, the observation in that file will be used
+# to judge the assembly-language verification.
 #
 # Usage:
 #	judgelitmus.sh file.litmus

@@ -32,9 +34,11 @@ fi
 if test -z "$LKMM_HW_MAP_FILE"
 then
 	litmusout=$litmus.out
+	lkmmout=
 else
 	litmusout="`echo $litmus |
 		sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`.out"
+	lkmmout=$litmus.out
 fi
 if test -f "$LKMM_DESTDIR/$litmusout" -a -r "$LKMM_DESTDIR/$litmusout"
 then

@@ -46,6 +50,9 @@ fi
 if grep -q '^ \* Result: ' $litmus
 then
 	outcome=`grep -m 1 '^ \* Result: ' $litmus | awk '{ print $3 }'`
+elif test -n "$LKMM_HW_MAP_FILE" && grep -q '^Observation' $LKMM_DESTDIR/$lkmmout > /dev/null 2>&1
+then
+	outcome=`grep -m 1 '^Observation ' $LKMM_DESTDIR/$lkmmout | awk '{ print $3 }'`
 else
 	outcome=specified
 fi

index 42ff11869cd6..4c1d0cf0ddad 100755
@@ -1,15 +1,8 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0+
 #
-# Run a herd7 test and invokes judgelitmus.sh to check the result against
-# a "Result:" comment within the litmus test.  It also outputs verification
-# results to a file whose name is that of the specified litmus test, but
-# with ".out" appended.
-#
-# If the --hw argument is specified, this script translates the .litmus
-# C-language file to the specified type of assembly and verifies that.
-# But in this case, litmus tests using complex synchronization (such as
-# locking, RCU, and SRCU) are cheerfully ignored.
+# Invokes runlitmus.sh and judgelitmus.sh on its arguments to run the
+# specified litmus test and pass judgment on the results.
 #
 # Usage:
 #	checklitmus.sh file.litmus

@@ -22,47 +15,5 @@
 #
 # Author: Paul E. McKenney <[email protected]>
 
-litmus=$1
-if test -f "$litmus" -a -r "$litmus"
-then
-	:
-else
-	echo ' --- ' error: \"$litmus\" is not a readable file
-	exit 255
-fi
-
-if test -z "$LKMM_HW_MAP_FILE"
-then
-	# LKMM run
-	herdoptions=${LKMM_HERD_OPTIONS--conf linux-kernel.cfg}
-	echo Herd options: $herdoptions > $LKMM_DESTDIR/$litmus.out
-	/usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $litmus >> $LKMM_DESTDIR/$litmus.out 2>&1
-else
-	# Hardware run
-
-	T=/tmp/checklitmushw.sh.$$
-	trap 'rm -rf $T' 0 2
-	mkdir $T
-
-	# Generate filenames
-	catfile="`echo $LKMM_HW_MAP_FILE | tr '[A-Z]' '[a-z]'`.cat"
-	mapfile="Linux2${LKMM_HW_MAP_FILE}.map"
-	themefile="$T/${LKMM_HW_MAP_FILE}.theme"
-	herdoptions="-model $LKMM_HW_CAT_FILE"
-	hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`
-	hwlitmusfile=`echo $hwlitmus | sed -e 's,^.*/,,'`
-
-	# Don't run on litmus tests with complex synchronization
-	if ! scripts/simpletest.sh $litmus
-	then
-		echo ' --- ' error: \"$litmus\" contains locking, RCU, or SRCU
-		exit 254
-	fi
-
-	# Generate the assembly code and run herd7 on it.
-	gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
-	jingle7 -theme $themefile $litmus > $T/$hwlitmusfile 2> $T/$hwlitmusfile.jingle7.out
-	/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $T/$hwlitmusfile > $LKMM_DESTDIR/$hwlitmus.out 2>&1
-fi
-
-scripts/judgelitmus.sh $litmus
+scripts/runlitmus.sh $1
+scripts/judgelitmus.sh $1

69 lines not on this page · raw message

index 91af859c0e90..2865a9661b07 100755
@@ -28,42 +28,48 @@ if test -f "$litmus" -a -r "$litmus"
 then
 	:
 else
-	echo ' --- ' error: \"$litmus\" is not a readable file
+	echo ' !!! ' error: \"$litmus\" is not a readable file
 	exit 255
 fi
 
-if test -z "$LKMM_HW_MAP_FILE"
+if test -z "$LKMM_HW_MAP_FILE" -o ! -e $LKMM_DESTDIR/$litmus.out
 then
 	# LKMM run
 	herdoptions=${LKMM_HERD_OPTIONS--conf linux-kernel.cfg}
 	echo Herd options: $herdoptions > $LKMM_DESTDIR/$litmus.out
 	/usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $litmus >> $LKMM_DESTDIR/$litmus.out 2>&1
-else
-	# Hardware run
+	ret=$?
+	if test -z "$LKMM_HW_MAP_FILE"
+	then
+		exit $ret
+	fi
+	echo " --- " Automatically generated LKMM output for '"'--hw $LKMM_HW_MAP_FILE'"' run
+fi
 
-	T=/tmp/checklitmushw.sh.$$
-	trap 'rm -rf $T' 0 2
-	mkdir $T
+# Hardware run
 
-	# Generate filenames
-	catfile="`echo $LKMM_HW_MAP_FILE | tr '[A-Z]' '[a-z]'`.cat"
-	mapfile="Linux2${LKMM_HW_MAP_FILE}.map"
-	themefile="$T/${LKMM_HW_MAP_FILE}.theme"
-	herdoptions="-model $LKMM_HW_CAT_FILE"
-	hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`
-	hwlitmusfile=`echo $hwlitmus | sed -e 's,^.*/,,'`
+T=/tmp/checklitmushw.sh.$$
+trap 'rm -rf $T' 0 2
+mkdir $T
 
-	# Don't run on litmus tests with complex synchronization
-	if ! scripts/simpletest.sh $litmus
-	then
-		echo ' --- ' error: \"$litmus\" contains locking, RCU, or SRCU
-		exit 254
-	fi
+# Generate filenames
+catfile="`echo $LKMM_HW_MAP_FILE | tr '[A-Z]' '[a-z]'`.cat"
+mapfile="Linux2${LKMM_HW_MAP_FILE}.map"
+themefile="$T/${LKMM_HW_MAP_FILE}.theme"
+herdoptions="-model $LKMM_HW_CAT_FILE"
+hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`
+hwlitmusfile=`echo $hwlitmus | sed -e 's,^.*/,,'`
 
-	# Generate the assembly code and run herd on it.
-	gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
-	jingle7 -theme $themefile $litmus > $T/$hwlitmusfile 2> $T/$hwlitmusfile.jingle7.out
-	/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $T/$hwlitmusfile > $LKMM_DESTDIR/$hwlitmus.out 2>&1
+# Don't run on litmus tests with complex synchronization
+if ! scripts/simpletest.sh $litmus
+then
+	echo ' --- ' error: \"$litmus\" contains locking, RCU, or SRCU
+	exit 254
 fi
 
+# Generate the assembly code and run herd7 on it.
+gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
+jingle7 -theme $themefile $litmus > $T/$hwlitmusfile 2> $T/$hwlitmusfile.jingle7.out
+/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $T/$hwlitmusfile > $LKMM_DESTDIR/$hwlitmus.out 2>&1
+
 exit $?

index 6e2ddc54152f..f47cb2045f13 100644
@@ -1 +1 @@
-*.litmus.out
+*.out

index fe9131f8eb96..ca9a19829d79 100755
@@ -37,7 +37,7 @@ then
 	lkmmout=
 else
 	litmusout="`echo $litmus |
-		sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`.out"
+		sed -e 's/\.litmus$/.litmus.'${LKMM_HW_MAP_FILE}'/'`.out"
 	lkmmout=$litmus.out
 fi
 if test -f "$LKMM_DESTDIR/$litmusout" -a -r "$LKMM_DESTDIR/$litmusout"

index 2865a9661b07..c84124b32bee 100755
@@ -57,7 +57,7 @@ catfile="`echo $LKMM_HW_MAP_FILE | tr '[A-Z]' '[a-z]'`.cat"
 mapfile="Linux2${LKMM_HW_MAP_FILE}.map"
 themefile="$T/${LKMM_HW_MAP_FILE}.theme"
 herdoptions="-model $LKMM_HW_CAT_FILE"
-hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.'${LKMM_HW_MAP_FILE}'.litmus/'`
+hwlitmus=`echo $litmus | sed -e 's/\.litmus$/.litmus.'${LKMM_HW_MAP_FILE}'/'`
 hwlitmusfile=`echo $hwlitmus | sed -e 's,^.*/,,'`
 
 # Don't run on litmus tests with complex synchronization

index f47cb2045f13..848e62d2a9b3 100644
@@ -1 +1 @@
-*.out
+*.litmus.*

index c84124b32bee..62b47c7e1ba9 100755
@@ -69,7 +69,7 @@ fi
 
 # Generate the assembly code and run herd7 on it.
 gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
-jingle7 -theme $themefile $litmus > $T/$hwlitmusfile 2> $T/$hwlitmusfile.jingle7.out
-/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $T/$hwlitmusfile > $LKMM_DESTDIR/$hwlitmus.out 2>&1
+jingle7 -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out
+/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1
 
 exit $?

index 62b47c7e1ba9..afb196d7ef10 100755
@@ -53,7 +53,6 @@ trap 'rm -rf $T' 0 2
 mkdir $T
 
 # Generate filenames
-catfile="`echo $LKMM_HW_MAP_FILE | tr '[A-Z]' '[a-z]'`.cat"
 mapfile="Linux2${LKMM_HW_MAP_FILE}.map"
 themefile="$T/${LKMM_HW_MAP_FILE}.theme"
 herdoptions="-model $LKMM_HW_CAT_FILE"

@@ -70,6 +69,6 @@ fi
 # Generate the assembly code and run herd7 on it.
 gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
 jingle7 -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out
-/usr/bin/time $LKMM_TIMEOUT_CMD herd7 -model $catfile $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1
+/usr/bin/time $LKMM_TIMEOUT_CMD herd7 $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1
 
 exit $?

index afb196d7ef10..5f2d29b460ff 100755
@@ -69,6 +69,11 @@ fi
 # Generate the assembly code and run herd7 on it.
 gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
 jingle7 -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out
+if grep -q "Generated 0 tests" $T/$hwlitmusfile.jingle7.out
+then
+	echo ' !!! ' jingle7 failed, no $hwlitmus generated
+	exit 253
+fi
 /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1
 
 exit $?

index 5f2d29b460ff..dfdb1f00fcc0 100755
@@ -68,10 +68,11 @@ fi
 
 # Generate the assembly code and run herd7 on it.
 gen_theme7 -n 10 -map $mapfile -call Linux.call > $themefile
-jingle7 -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out
+jingle7 -v -theme $themefile $litmus > $LKMM_DESTDIR/$hwlitmus 2> $T/$hwlitmusfile.jingle7.out
 if grep -q "Generated 0 tests" $T/$hwlitmusfile.jingle7.out
 then
-	echo ' !!! ' jingle7 failed, no $hwlitmus generated
+	echo ' !!! ' jingle7 failed, errors in $hwlitmus.err
+	cp $T/$hwlitmusfile.jingle7.out $LKMM_DESTDIR/$hwlitmus.err
 	exit 253
 fi
 /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $LKMM_DESTDIR/$hwlitmus > $LKMM_DESTDIR/$hwlitmus.out 2>&1

index 6589fbb6f653..2ea220d2564b 100755
@@ -10,6 +10,7 @@
 # parseargs.sh scripts for arguments.
 
 . scripts/parseargs.sh
+. scripts/hwfnseg.sh
 
 T=/tmp/checkghlitmus.sh.$$
 trap 'rm -rf $T' 0

@@ -32,9 +33,9 @@ then
 	( cd "$LKMM_DESTDIR"; sed -e 's/^/mkdir -p /' | sh )
 fi
 
-# Create a list of the C-language litmus tests previously run.
-( cd $LKMM_DESTDIR; find litmus -name '*.litmus.out' -print ) |
-	sed -e 's/\.out$//' |
+# Create a list of the specified litmus tests previously run.
+( cd $LKMM_DESTDIR; find litmus -name "*.litmus${hwfnseg}.out" -print ) |
+	sed -e "s/${hwfnseg}"'\.out$//' |
 	xargs -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' |
 	xargs -r grep -L "^P${LKMM_PROCS}"> $T/list-C-already
 

@@ -44,7 +45,7 @@ find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C
 xargs < $T/list-C -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' > $T/list-C-result
 xargs < $T/list-C-result -r grep -L "^P${LKMM_PROCS}" > $T/list-C-result-short
 
-# Form list of tests without corresponding .litmus.out files
+# Form list of tests without corresponding .out files
 sort $T/list-C-already $T/list-C-result-short | uniq -u > $T/list-C-needed
 
 # Run any needed tests.

new file mode 100755
index 000000000000..580c3281181c
@@ -0,0 +1,20 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Generate the hardware extension to the litmus-test filename, or the
+# empty string if this is an LKMM run.  The extension is placed in
+# the shell variable hwfnseg.
+#
+# Usage:
+#	. hwfnseg.sh
+#
+# Copyright IBM Corporation, 2019
+#
+# Author: Paul E. McKenney <[email protected]>
+
+if test -z "$LKMM_HW_MAP_FILE"
+then
+	hwfnseg=
+else
+	hwfnseg=".$LKMM_HW_MAP_FILE"
+fi

index 852786fef179..c6c2bdc67a50 100755
@@ -15,6 +15,8 @@
 #
 # Author: Paul E. McKenney <[email protected]>
 
+. scripts/hwfnseg.sh
+
 T=/tmp/runlitmushist.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T

@@ -30,15 +32,12 @@ fi
 # Prefixes for per-CPU scripts
 for ((i=0;i<$LKMM_JOBS;i++))
 do
-	echo dir="$LKMM_DESTDIR" > $T/$i.sh
 	echo T=$T >> $T/$i.sh
-	echo herdoptions=\"$LKMM_HERD_OPTIONS\" >> $T/$i.sh
 	cat << '___EOF___' >> $T/$i.sh
 	runtest () {
-		echo ' ... ' /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $1 '>' $dir/$1.out '2>&1'
-		if /usr/bin/time $LKMM_TIMEOUT_CMD herd7 $herdoptions $1 > $dir/$1.out 2>&1
+		if scripts/runlitmus.sh $1
 		then
-			if ! grep -q '^Observation ' $dir/$1.out
+			if ! grep -q '^Observation ' $LKMM_DESTDIR/$1$2.out
 			then
 				echo ' !!! Herd failed, no Observation:' $1
 			fi

@@ -47,10 +46,16 @@ do
 			if test "$exitcode" -eq 124
 			then
 				exitmsg="timed out"
+			elif test "$exitcode" -eq 253
+			then
+				exitmsg=
 			else
 				exitmsg="failed, exit code $exitcode"
 			fi
-			echo ' !!! Herd' ${exitmsg}: $1
+			if test -n "$exitmsg"
+			then
+				echo ' !!! Herd' ${exitmsg}: $1
+			fi
 		fi
 	}
 ___EOF___

@@ -59,11 +64,13 @@ done
 awk -v q="'" -v b='\\' '
 {
 	print "echo `grep " q "^P[0-9]" b "+(" q " " $0 " | tail -1 | sed -e " q "s/^P" b "([0-9]" b "+" b ")(.*$/" b "1/" q "` " $0
-}' | bash |
-sort -k1n |
-awk -v ncpu=$LKMM_JOBS -v t=$T '
+}' | sh | sort -k1n |
+awk -v dq='"' -v hwfnseg="$hwfnseg" -v ncpu="$LKMM_JOBS" -v t="$T" '
 {
-	print "runtest " $2 >> t "/" NR % ncpu ".sh";
+	print "if test -z " dq hwfnseg dq " || scripts/simpletest.sh " dq $2 dq
+	print "then"
+	print "\techo runtest " dq $2 dq " " hwfnseg " >> " t "/" NR % ncpu ".sh";
+	print "fi"
 }
 
 END {

index 5f016fc3f3af..25a81ac0dfdf 100755
@@ -113,7 +113,7 @@ do
 		LKMM_JOBS="`echo $njobs | sed -e 's/^\([0-9]\+\).*$/\1/'`"
 		;;
 	--jobs|--job|-j)
-		checkarg --jobs "(number)" "$#" "$2" '^[1-9][0-9]\+$' '^--'
+		checkarg --jobs "(number)" "$#" "$2" '^[1-9][0-9]*$' '^--'
 		LKMM_JOBS="$2"
 		shift
 		;;

index 2ea220d2564b..cedd0290b73f 100755
@@ -41,7 +41,7 @@ fi
 
 # Create a list of C-language litmus tests with "Result:" commands and
 # no more than the specified number of processes.
-find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C
+find litmus -name '*.litmus' -print | mselect7 -arch C > $T/list-C
 xargs < $T/list-C -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' > $T/list-C-result
 xargs < $T/list-C-result -r grep -L "^P${LKMM_PROCS}" > $T/list-C-result-short
 

index 956b6957484d..31ea782955d3 100755
@@ -60,7 +60,7 @@ fi
 
 # Create a list of the C-language litmus tests with no more than the
 # specified number of processes (per the --procs argument).
-find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C
+find litmus -name '*.litmus' -print | mselect7 -arch C > $T/list-C
 xargs < $T/list-C -r grep -L "^P${LKMM_PROCS}" > $T/list-C-short
 
 scripts/runlitmushist.sh < $T/list-C-short

index 3f4b06e29988..25235e2049cf 100755
@@ -43,7 +43,7 @@ fi
 
 # Form full list of litmus tests with no more than the specified
 # number of processes (per the --procs argument).
-find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C-all
+find litmus -name '*.litmus' -print | mselect7 -arch C > $T/list-C-all
 xargs < $T/list-C-all -r grep -L "^P${LKMM_PROCS}" > $T/list-C-short
 
 # Form list of new tests.  Note: This does not handle litmus-test deletion!

index 25a81ac0dfdf..7aa58755adfc 100755
@@ -83,7 +83,7 @@ do
 			echo "Cannot create directory --destdir '$LKMM_DESTDIR'"
 			usage
 		fi
-		if test -d "$LKMM_DESTDIR" -a -w "$LKMM_DESTDIR" -a -x "$LKMM_DESTDIR"
+		if test -d "$LKMM_DESTDIR" -a -x "$LKMM_DESTDIR"
 		then
 			:
 		else

@@ -127,6 +127,10 @@ do
 		LKMM_TIMEOUT="$2"
 		shift
 		;;
+	--)
+		shift
+		break
+		;;
 	*)
 		echo Unknown argument $1
 		usage

index 7aa58755adfc..08ded5909860 100755
@@ -1,7 +1,7 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0+
 #
-# the corresponding .litmus.out file, and does not judge the result.
+# Parse arguments common to the various scripts.
 #
 # . scripts/parseargs.sh
 #

index 0e29a52044c1..cc2c4e5be9ec 100644
@@ -27,6 +27,14 @@ checklitmushist.sh
 checklitmus.sh
 
 	Check a single litmus test against its "Result:" expected result.
+	Not intended to for manual use.
+
+checktheselitmus.sh
+
+	Check the specified list of litmus tests against their "Result:"
+	expected results.  This takes optional parseargs.sh arguments,
+	followed by "--" followed by pathnames starting from the current
+	directory.
 
 cmplitmushist.sh
 

43 lines not on this page · raw message

index ca9a19829d79..eaa2cc7d3b36 100755
@@ -47,9 +47,27 @@ else
 	echo ' --- ' error: \"$LKMM_DESTDIR/$litmusout is not a readable file
 	exit 255
 fi
+if grep -q '^Flag data-race$' "$LKMM_DESTDIR/$litmusout"
+then
+	datarace_modeled=1
+fi
 if grep -q '^ \* Result: ' $litmus
 then
 	outcome=`grep -m 1 '^ \* Result: ' $litmus | awk '{ print $3 }'`
+	if grep -m1 '^ \* Result: .* DATARACE' $litmus
+	then
+		datarace_predicted=1
+	fi
+	if test -n "$datarace_predicted" -a -z "$datarace_modeled" -a -z "$LKMM_HW_MAP_FILE"
+	then
+		echo '!!! Predicted data race not modeled' $litmus
+		exit 252
+	elif test -z "$datarace_predicted" -a -n "$datarace_modeled"
+	then
+		# Note that hardware models currently don't model data races
+		echo '!!! Unexpected data race modeled' $litmus
+		exit 253
+	fi
 elif test -n "$LKMM_HW_MAP_FILE" && grep -q '^Observation' $LKMM_DESTDIR/$lkmmout > /dev/null 2>&1
 then
 	outcome=`grep -m 1 '^Observation ' $LKMM_DESTDIR/$lkmmout | awk '{ print $3 }'`

@@ -114,7 +132,7 @@ elif grep '^Observation' $LKMM_DESTDIR/$litmusout | grep -q $outcome || test "$o
 then
 	ret=0
 else
-	if test -n "$LKMM_HW_MAP_FILE" -a "$outcome" = Sometimes
+	if test \( -n "$LKMM_HW_MAP_FILE" -a "$outcome" = Sometimes \) -o -n "$datarace_modeled"
 	then
 		flag="--- Forgiven"
 		ret=0