linux-kernel - [PATCH tip/core/rcu 20/32] tools/memory-model: Allow herd to deduce CPU type

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Message-Id: <20191003002650.11249-20-paulmck@kernel.org>
Date:   Wed,  2 Oct 2019 17:26:38 -0700
From:   paulmck@...nel.org
To:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mingo@...nel.org
Cc:     stern@...land.harvard.edu, parri.andrea@...il.com, will@...nel.org,
        peterz@...radead.org, boqun.feng@...il.com, npiggin@...il.com,
        dhowells@...hat.com, j.alglave@....ac.uk, luc.maranget@...ia.fr,
        akiyks@...il.com, "Paul E. McKenney" <paulmck@...ux.ibm.com>
Subject: [PATCH tip/core/rcu 20/32] tools/memory-model: Allow herd to deduce CPU type

From: "Paul E. McKenney" <paulmck@...ux.ibm.com>

Currently, the scripts specify the CPU's .cat file to herd.  But this is
pointless because herd will select a good and sufficient .cat file from
the assembly-language litmus test itself.  This commit therefore removes
the -model argument to herd, allowing herd to figure the CPU family out
itself.

Note that the user can override herd's choice using the "--herdopts"
argument to the scripts.

Suggested-by: Luc Maranget <luc.maranget@...ia.fr>
Signed-off-by: Paul E. McKenney <paulmck@...ux.ibm.com>
---
 tools/memory-model/scripts/runlitmus.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/memory-model/scripts/runlitmus.sh b/tools/memory-model/scripts/runlitmus.sh
index 62b47c7..afb196d 100755
--- a/tools/memory-model/scripts/runlitmus.sh
+++ b/tools/memory-model/scripts/runlitmus.sh
@@ -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 $?
-- 
2.9.5