* gdb.base/break.c (need_malloc): New.

* gdb.base/constvars.c (main): Reference crass and crisp.
	* gdb.base/gdb1821.c (main): Reference bar.
	* gdb.cp/gdb1355.cc (main): Reference s1.
	* gdb.cp/hang1.cc (dummy2, dummy3): Declare.
	(main): Call them.
	* gdb.cp/hang2.cc (dummy2): Define.
	* gdb.cp/hang3.cc (dummy3): Define.
	* gdb.cp/m-data.cc (main): Reference shadow.

gdb/testsuite/ChangeLog

@@ -1,3 +1,15 @@
+2009-11-12  Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* gdb.base/break.c (need_malloc): New.
+	* gdb.base/constvars.c (main): Reference crass and crisp.
+	* gdb.base/gdb1821.c (main): Reference bar.
+	* gdb.cp/gdb1355.cc (main): Reference s1.
+	* gdb.cp/hang1.cc (dummy2, dummy3): Declare.
+	(main): Call them.
+	* gdb.cp/hang2.cc (dummy2): Define.
+	* gdb.cp/hang3.cc (dummy3): Define.
+	* gdb.cp/m-data.cc (main): Reference shadow.
+
 2009-11-12  Daniel Jacobowitz  <dan@codesourcery.com>
 	    Nathan Froyd  <froydnj@codesourcery.com>
 

gdb/testsuite/gdb.base/break.c

@@ -62,6 +62,13 @@ extern void marker3 ();
 extern void marker4 ();
 #endif
 
+/* We're used by a test that requires malloc, so make sure it is in
+   the executable.  */
+void *need_malloc ()
+{
+  return malloc (1);
+}
+
 /*
  *	This simple classical example of recursion is useful for
  *	testing stack backtraces and such.

gdb/testsuite/gdb.base/constvars.c

@@ -172,6 +172,10 @@ main (void)
   struct crass { char * const ptr; } crass = { lamprey };
   struct crisp { char * const *ptr; } crisp = { &lamprey };
 
+  /* Reference the structs so that they are not discarded.  */
+  struct crass *creed = &crass;
+  struct crisp *crow = &crisp;
+
   /* misc. references */
   /*
   const char           & radiation = laconic;

gdb/testsuite/gdb.base/gdb1821.c

@@ -20,4 +20,4 @@
 struct foo { double x__0, y__0, z__1; } bar;
 
 
-int main(void) { return 0; }
+int main(void) { return (int) bar.x__0; }

gdb/testsuite/gdb.cp/gdb1355.cc

@@ -31,5 +31,6 @@ struct mystruct s1 =
 
 int main ()
 {
-  return 0;
+  /* Reference s1 so that it is included.  */
+  return s1.m_int - 117;
 }

gdb/testsuite/gdb.cp/hang1.cc

@@ -1,3 +1,6 @@
 #include "hang.H"
 
-int main (int argc, char **argv) { return 0; }
+extern int dummy2 (void);
+extern int dummy3 (void);
+
+int main (int argc, char **argv) { return dummy2() + dummy3(); }

gdb/testsuite/gdb.cp/hang2.cc

@@ -6,3 +6,8 @@ struct B
 };
 
 int var_in_b = 1729;
+
+int dummy2 (void)
+{
+  return var_in_b;
+}

gdb/testsuite/gdb.cp/hang3.cc

@@ -2,3 +2,8 @@
 
 const struct B *const_B_ptr;
 int var_in_hang3 = 42;
+
+int dummy3 (void)
+{
+  return var_in_hang3;
+}

gdb/testsuite/gdb.cp/m-data.cc

@@ -60,5 +60,5 @@ int main()
   C theC (1);				// breakpoint: first-constructs-done
   theC.marker ();
   
-  return 0;
+  return shadow;
 }