tools/memory-model: Allow herd to deduce CPU type

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 <[e-mail]>
Signed-off-by: Paul E. McKenney <[e-mail]>

tools/memory-model/scripts/runlitmus.sh

···
 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"
···
 # 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 $?