--- a/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp	Wed Jul 28 17:57:43 2010 -0400
+++ b/hotspot/src/share/vm/utilities/globalDefinitions_gcc.hpp	Tue Aug 03 08:13:38 2010 -0400
@@ -216,8 +216,16 @@
 
 #define DEBUG_EXCEPTION ::abort();
 
+#ifdef ARM
+#ifdef SOLARIS
+#define BREAKPOINT __asm__ volatile (".long 0xe1200070")
+#else
+#define BREAKPOINT __asm__ volatile (".long 0xe7f001f0")
+#endif
+#else
 extern "C" void breakpoint();
 #define BREAKPOINT ::breakpoint()
+#endif
 
 // checking for nanness
 #ifdef SOLARIS
@@ -235,6 +243,12 @@
 #error "missing platform-specific definition here"
 #endif
 
+// GCC 4.3 does not allow 0.0/0.0 to produce a NAN value
+#if (__GNUC__ == 4) && (__GNUC_MINOR__ > 2)
+#define CAN_USE_NAN_DEFINE 1
+#endif
+
+
 // Checking for finiteness
 
 inline int g_isfinite(jfloat  f)                 { return finite(f); }