diff -r 30268d00878e -r f13dda645a4b hotspot/src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp
--- a/hotspot/src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp	Wed Mar 11 14:16:13 2009 -0700
+++ b/hotspot/src/os_cpu/solaris_sparc/vm/globals_solaris_sparc.hpp	Thu Mar 12 10:37:46 2009 -0700
@@ -30,5 +30,9 @@
 define_pd_global(uintx, JVMInvokeMethodSlack,    12288);
 define_pd_global(intx, CompilerThreadStackSize,  0);
 
+// Only used on 64 bit platforms
+define_pd_global(uintx, HeapBaseMinAddress,      4*G);
 // Only used on 64 bit Windows platforms
 define_pd_global(bool, UseVectoredExceptions,    false);
+
+