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hotspot/src/os_cpu/windows_x86/vm/os_windows_x86.cpp

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rev 6904 : 8054008: Using -XX:-LazyBootClassLoader crashes with ACCESS_VIOLATION on Win 64bit.
Summary: Only enable the assert for current_stack_pointer after stub routines become available.
Reviewed-by: dholmes, roland, lfoltan


 618    // On systems that don't support pause a rep:nop
 619    // is executed as a nop.  The rep: prefix is ignored.
 620    _asm {
 621       pause ;
 622    };
 623    return 1 ;
 624 #endif // AMD64
 625 }
 626 
 627 
 628 void os::setup_fpu() {
 629 #ifndef AMD64
 630   int fpu_cntrl_word = StubRoutines::fpu_cntrl_wrd_std();
 631   __asm fldcw fpu_cntrl_word;
 632 #endif // !AMD64
 633 }
 634 
 635 #ifndef PRODUCT
 636 void os::verify_stack_alignment() {
 637 #ifdef AMD64



 638   assert(((intptr_t)os::current_stack_pointer() & (StackAlignmentInBytes-1)) == 0, "incorrect stack alignment");

 639 #endif
 640 }
 641 #endif



 618    // On systems that don't support pause a rep:nop
 619    // is executed as a nop.  The rep: prefix is ignored.
 620    _asm {
 621       pause ;
 622    };
 623    return 1 ;
 624 #endif // AMD64
 625 }
 626 
 627 
 628 void os::setup_fpu() {
 629 #ifndef AMD64
 630   int fpu_cntrl_word = StubRoutines::fpu_cntrl_wrd_std();
 631   __asm fldcw fpu_cntrl_word;
 632 #endif // !AMD64
 633 }
 634 
 635 #ifndef PRODUCT
 636 void os::verify_stack_alignment() {
 637 #ifdef AMD64
 638   // The current_stack_pointer() calls generated get_previous_sp stub routine.
 639   // Only enable the assert after the routine becomes available.
 640   if (StubRoutines::code1() != NULL) {
 641     assert(((intptr_t)os::current_stack_pointer() & (StackAlignmentInBytes-1)) == 0, "incorrect stack alignment");
 642   }
 643 #endif
 644 }
 645 #endif
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