First cut at dealing with canadian crosses; make -t in debugger set d10v_debug if DEBUG

sim/d10v/ChangeLog

@@ -33,12 +33,21 @@ Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 	(sim_info): Print out statistics on instructions.
 	(sim_{trace,create_inferior}): Eliminate extraneous output unless
 	debugging.
+	(sim_open): If args == -t and DEBUG was defined, set d10v_debug.
+	Only initialize the hash table the first time sim_open is called.
 
 	* Makefile.in: Make objects depend on d10v_sim.h.
-	({,SIM_}CFLAGS): Include configure dependent switches.
+	({,SIM_}CFLAGS): Include configure dependent switches.  Setting
+	CFLAGS does not override host/target defines or SIM_CFLAGS.
+	(CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
+	(run): By default, the math library is not needed to be linked
+	in.
+	({BFD,OPCODES,LIBIBERTY}_LIB): Define as variables so they can be
+	overridden.
 
 	* configure.in (--enable-sim-cflags): New switch to allow user to
 	set the defaults.
+	(CC_FOR_BUILD): Deal with canadian crosses.
 	* configure: Regenerate.
 
 Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>

sim/d10v/Makefile.in

@@ -16,6 +16,8 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
+default: all
+
 VPATH = @srcdir@:@srcdir@/../common:@srcdir@/../../gdb/
 srcdir = @srcdir@
 srcroot = $(srcdir)/../..
@@ -56,11 +58,13 @@ INSTALL_XFORM1= $(INSTALL_XFORM) -b=.1
 AR = @AR@
 AR_FLAGS = rc
 CC = @CC@
+CC_FOR_BUILD = @CC_FOR_BUILD@
+CFLAGS = @CFLAGS@
 SIM_CFLAGS = @sim_cflags@
-CFLAGS = @CFLAGS@ @DEFS@ $(SIM_CFLAGS)
+CONFIG_CFLAGS = @DEFS@ $(SIM_CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHES) -DINSIDE_SIMULATOR
+BUILD_CFLAGS = -g -O $(CSEARCH)
 MAKEINFO = makeinfo
 RANLIB = @RANLIB@
-CC_FOR_BUILD = @CC_FOR_BUILD@
 
 HDEFINES = @HDEFINES@
 TDEFINES =
@@ -69,9 +73,11 @@ TDEFINES =
 MAKEOVERRIDES=
 
 #X=xstuff.o
-#XL=-lX11
+#X_LIB=-lX11
 X=
-XL=
+X_LIB=
+MATH_LIB=
+
 
 INCLUDE = d10v_sim.h
 INCDIR = $(srcdir)/../../include 
@@ -79,10 +85,14 @@ CSEARCH = -I. -I$(srcdir)  -I../../include  \
   -I../../bfd -I$(INCDIR) -I$(srcdir)/../../bfd -I$(srcdir)/../../gdb -I$(srcdir)/../../newlib/libc/sys/d10v
 DEP = mkdep
 
-all:	run libsim.a
+LIBIBERTY_LIB	= ../../libiberty/libiberty.a
+BFD_LIB		= ../../bfd/libbfd.a
+OPCODES_LIB	= ../../opcodes/libopcodes.a
+
+all: run libsim.a
 
-run:	interp.o $(X) run.o table.o callback.o simops.o
-	$(CC) $(CFLAGS) -o run $(X) interp.o table.o callback.o simops.o run.o ../../bfd/libbfd.a ../../libiberty/libiberty.a $(XL) -lm
+run: interp.o $(X) run.o table.o callback.o simops.o
+	$(CC) $(CFLAGS) $(CONFIG_CFLAGS) -o run $(X) interp.o table.o callback.o simops.o run.o $(BFD_LIB) $(LIBIBERTY_LIB) $(X_LIB) $(MATH_LIB)
 
 interp.o:interp.c table.c $(INCLUDE)
 run.o:run.c $(INCLUDE)
@@ -92,17 +102,17 @@ libsim.a:interp.o table.o simops.o
 	$(AR) $(ARFLAGS) libsim.a interp.o table.o simops.o
 	$(RANLIB) libsim.a
 
-simops.h:	gencode
+simops.h: gencode
 	./gencode -h >$@
 
-table.c:	gencode simops.h
+table.c: gencode simops.h
 	./gencode >$@
 
-gencode:	gencode.c ../../opcodes/libopcodes.a $(INCLUDE)
-	$(CC) $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHE) -o gencode $(srcdir)/gencode.c ../../opcodes/libopcodes.a -lc
+gencode: gencode.c ../../opcodes/libopcodes.a $(INCLUDE)
+	$(CC_FOR_BUILD) $(BUILD_CFLAGS) -o gencode $(srcdir)/gencode.c $(OPCODES_LIB)
 
 .c.o:
-	$(CC) -c -DINSIDE_SIMULATOR $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHES) $<
+	$(CC) -c $(CFLAGS) $(CONFIG_CFLAGS) $<
 
 check:
 

sim/d10v/configure

@@ -932,6 +932,39 @@ EOF
 fi
 
 
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+# If we cannot run a trivial program, we must be cross compiling.
+echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_c_cross=yes
+else
+cat > conftest.$ac_ext <<EOF
+#line 946 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+{ (eval echo configure:950: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_cross=no
+else
+  ac_cv_c_cross=yes
+fi
+fi
+rm -fr conftest*
+fi
+
+echo "$ac_t""$ac_cv_c_cross" 1>&6
+cross_compiling=$ac_cv_c_cross
+
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+
 . ${srcdir}/../../bfd/configure.host
 
 # Check whether --enable-sim-cflags or --disable-sim-cflags was given.
@@ -952,6 +985,7 @@ fi
 
 
 
+
 AR=${AR-ar}
 
 # Extract the first word of "ranlib", so it can be a program name with args.
@@ -994,11 +1028,11 @@ else
   ac_cv_c_cross=yes
 else
 cat > conftest.$ac_ext <<EOF
-#line 998 "configure"
+#line 1032 "configure"
 #include "confdefs.h"
 main(){return(0);}
 EOF
-{ (eval echo configure:1002: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:1036: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   ac_cv_c_cross=no
 else
@@ -1165,11 +1199,11 @@ s%@build_os@%$build_os%g
 s%@CC@%$CC%g
 s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
 s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
 s%@HDEFINES@%$HDEFINES%g
 s%@AR@%$AR%g
 s%@RANLIB@%$RANLIB%g
 s%@sim_cflags@%$sim_cflags%g
-s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
 
 CEOF
 EOF

sim/d10v/configure.in

@@ -9,6 +9,14 @@ AC_PROG_CC
 AC_PROG_INSTALL
 AC_C_BIGENDIAN
 
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+AC_C_CROSS
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+
 . ${srcdir}/../../bfd/configure.host
 
 AC_ARG_ENABLE(sim-cflags,
@@ -23,6 +31,7 @@ if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
   echo "Setting sim cflags = $sim_cflags" 6>&1
 fi],[sim_cflags=""])dnl
 
+AC_SUBST(CC_FOR_BUILD)
 AC_SUBST(CFLAGS)
 AC_SUBST(HDEFINES)
 AR=${AR-ar}

sim/d10v/interp.c

@@ -291,26 +291,38 @@ sim_open (args)
 {
   struct simops *s;
   struct hash_entry *h, *prev;
+  static int init_p = 0;
+
   if (args != NULL)
-    (*d10v_callback->printf_filtered) (d10v_callback, "sim_open %s\n",args);
+    {
+#ifdef DEBUG
+      if (strcmp (args, "-t") == 0)
+	d10v_debug = DEBUG;
+      else
+#endif
+	(*d10v_callback->printf_filtered) (d10v_callback, "ERROR: unsupported option(s): %s\n",args);
+    }
 
   /* put all the opcodes in the hash table */
-  for (s = Simops; s->func; s++)
+  if (!init_p++)
     {
-      h = &hash_table[hash(s->opcode,s->format)];
-      
-      /* go to the last entry in the chain */
-      while (h->next)
-	  h = h->next;
-
-      if (h->ops)
+      for (s = Simops; s->func; s++)
 	{
-	  h->next = calloc(1,sizeof(struct hash_entry));
-	  h = h->next;
+	  h = &hash_table[hash(s->opcode,s->format)];
+      
+	  /* go to the last entry in the chain */
+	  while (h->next)
+	    h = h->next;
+
+	  if (h->ops)
+	    {
+	      h->next = calloc(1,sizeof(struct hash_entry));
+	      h = h->next;
+	    }
+	  h->ops = s;
+	  h->mask = s->mask;
+	  h->opcode = s->opcode;
 	}
-      h->ops = s;
-      h->mask = s->mask;
-      h->opcode = s->opcode;
     }
 }