sim: smp: make option available again

At some point we want this to work, but it's not easy to test if
the configure option isn't available.  Restore it, but keep the
default off.

1 files changed, 30 insertions, 2 deletions

diff --git a/sim/configure b/sim/configure
index 3a57189..6329dfd 100755
--- a/sim/configure
+++ b/sim/configure
@@ -1004,6 +1004,7 @@ enable_sim_inline
 enable_sim_profile
 enable_sim_reserved_bits
 enable_sim_scache
+enable_sim_smp
 enable_sim_stdio
 enable_sim_trace
 enable_werror
@@ -1780,6 +1781,8 @@ Optional Features:
                           instruction
   --enable-sim-scache=size
                           Specify simulator execution cache size
+  --enable-sim-smp=n      Specify number of processors to configure for
+                          (default 1)
   --enable-sim-stdio      Specify whether to use stdio for console
                           input/output
   --enable-sim-trace=opts Enable tracing of simulated programs
@@ -12442,7 +12445,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12445 "configure"
+#line 12448 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12548,7 +12551,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12551 "configure"
+#line 12554 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -16080,6 +16083,31 @@ _ACEOF
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $sim_scache" >&5
 $as_echo "$sim_scache" >&6; }
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking number of sim cpus to support" >&5
+$as_echo_n "checking number of sim cpus to support... " >&6; }
+default_sim_smp="0"
+sim_smp="$default_sim_smp"
+# Check whether --enable-sim-smp was given.
+if test "${enable_sim_smp+set}" = set; then :
+  enableval=$enable_sim_smp; case "${enableval}" in
+  yes)	sim_smp="5";;
+  no)	sim_smp="0";;
+  *)	sim_smp="$enableval";;
+esac
+fi
+sim_igen_smp="-N ${sim_smp}"
+if test "x$sim_smp" = x0; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define WITH_SMP $sim_smp
+_ACEOF
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sim_smp" >&5
+$as_echo "$sim_smp" >&6; }
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sim stdio debug behavior" >&5
 $as_echo_n "checking for sim stdio debug behavior... " >&6; }
 sim_stdio="0"