diff -r 8b6e49187640 -r 75b0f3cb1943 src/os_cpu/linux_x86/vm/os_linux_x86.cpp
--- a/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Thu Mar 13 05:40:44 2008 -0700
+++ b/src/os_cpu/linux_x86/vm/os_linux_x86.cpp	Thu Mar 13 14:17:48 2008 -0700
@@ -62,8 +62,14 @@
 #endif // AMD64
 
 address os::current_stack_pointer() {
+#ifdef SPARC_WORKS
+  register void *esp;
+  __asm__("mov %%"SPELL_REG_SP", %0":"=r"(esp));
+  return (address) ((char*)esp + sizeof(long)*2);
+#else
   register void *esp __asm__ (SPELL_REG_SP);
   return (address) esp;
+#endif
 }
 
 char* os::non_memory_address_word() {
@@ -139,7 +145,12 @@
 }
 
 intptr_t* _get_previous_fp() {
+#ifdef SPARC_WORKS
+  register intptr_t **ebp;
+  __asm__("mov %%"SPELL_REG_FP", %0":"=r"(ebp));
+#else
   register intptr_t **ebp __asm__ (SPELL_REG_FP);
+#endif
   return (intptr_t*) *ebp;   // we want what it points to.
 }
 
@@ -560,7 +571,9 @@
 #else
 size_t os::Linux::min_stack_allowed  =  (48 DEBUG_ONLY(+4))*K;
 
+#ifdef __GNUC__
 #define GET_GS() ({int gs; __asm__ volatile("movw %%gs, %w0":"=q"(gs)); gs&0xffff;})
+#endif
 
 // Test if pthread library can support variable thread stack size. LinuxThreads
 // in fixed stack mode allocates 2M fixed slot for each thread. LinuxThreads
@@ -591,7 +604,11 @@
     // return true and skip _thread_safety_check(), so we may not be able to
     // detect stack-heap collisions. But otherwise it's harmless.
     //
+#ifdef __GNUC__
     return (GET_GS() != 0);
+#else
+    return false;
+#endif
   }
 }
 #endif // AMD64