src/hotspot/os_cpu/windows_x86/os_windows_x86.cpp

*** 209,142 ***
  
  #endif // AMD64
    return true;
  }
  
- // Atomics and Stub Functions
- 
- typedef int32_t   xchg_func_t            (int32_t,  volatile int32_t*);
- typedef int64_t   xchg_long_func_t       (int64_t,  volatile int64_t*);
- typedef int32_t   cmpxchg_func_t         (int32_t,  volatile int32_t*, int32_t);
- typedef int8_t    cmpxchg_byte_func_t    (int8_t,   volatile int8_t*,  int8_t);
- typedef int64_t   cmpxchg_long_func_t    (int64_t,  volatile int64_t*, int64_t);
- typedef int32_t   add_func_t             (int32_t,  volatile int32_t*);
- typedef int64_t   add_long_func_t        (int64_t,  volatile int64_t*);
- 
- #ifdef AMD64
- 
- int32_t os::atomic_xchg_bootstrap(int32_t exchange_value, volatile int32_t* dest) {
-   // try to use the stub:
-   xchg_func_t* func = CAST_TO_FN_PTR(xchg_func_t*, StubRoutines::atomic_xchg_entry());
- 
-   if (func != NULL) {
-     os::atomic_xchg_func = func;
-     return (*func)(exchange_value, dest);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   int32_t old_value = *dest;
-   *dest = exchange_value;
-   return old_value;
- }
- 
- int64_t os::atomic_xchg_long_bootstrap(int64_t exchange_value, volatile int64_t* dest) {
-   // try to use the stub:
-   xchg_long_func_t* func = CAST_TO_FN_PTR(xchg_long_func_t*, StubRoutines::atomic_xchg_long_entry());
- 
-   if (func != NULL) {
-     os::atomic_xchg_long_func = func;
-     return (*func)(exchange_value, dest);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   int64_t old_value = *dest;
-   *dest = exchange_value;
-   return old_value;
- }
- 
- 
- int32_t os::atomic_cmpxchg_bootstrap(int32_t exchange_value, volatile int32_t* dest, int32_t compare_value) {
-   // try to use the stub:
-   cmpxchg_func_t* func = CAST_TO_FN_PTR(cmpxchg_func_t*, StubRoutines::atomic_cmpxchg_entry());
- 
-   if (func != NULL) {
-     os::atomic_cmpxchg_func = func;
-     return (*func)(exchange_value, dest, compare_value);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   int32_t old_value = *dest;
-   if (old_value == compare_value)
-     *dest = exchange_value;
-   return old_value;
- }
- 
- int8_t os::atomic_cmpxchg_byte_bootstrap(int8_t exchange_value, volatile int8_t* dest, int8_t compare_value) {
-   // try to use the stub:
-   cmpxchg_byte_func_t* func = CAST_TO_FN_PTR(cmpxchg_byte_func_t*, StubRoutines::atomic_cmpxchg_byte_entry());
- 
-   if (func != NULL) {
-     os::atomic_cmpxchg_byte_func = func;
-     return (*func)(exchange_value, dest, compare_value);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   int8_t old_value = *dest;
-   if (old_value == compare_value)
-     *dest = exchange_value;
-   return old_value;
- }
- 
- #endif // AMD64
- 
- int64_t os::atomic_cmpxchg_long_bootstrap(int64_t exchange_value, volatile int64_t* dest, int64_t compare_value) {
-   // try to use the stub:
-   cmpxchg_long_func_t* func = CAST_TO_FN_PTR(cmpxchg_long_func_t*, StubRoutines::atomic_cmpxchg_long_entry());
- 
-   if (func != NULL) {
-     os::atomic_cmpxchg_long_func = func;
-     return (*func)(exchange_value, dest, compare_value);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   int64_t old_value = *dest;
-   if (old_value == compare_value)
-     *dest = exchange_value;
-   return old_value;
- }
- 
- #ifdef AMD64
- 
- int32_t os::atomic_add_bootstrap(int32_t add_value, volatile int32_t* dest) {
-   // try to use the stub:
-   add_func_t* func = CAST_TO_FN_PTR(add_func_t*, StubRoutines::atomic_add_entry());
- 
-   if (func != NULL) {
-     os::atomic_add_func = func;
-     return (*func)(add_value, dest);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   return (*dest) += add_value;
- }
- 
- int64_t os::atomic_add_long_bootstrap(int64_t add_value, volatile int64_t* dest) {
-   // try to use the stub:
-   add_long_func_t* func = CAST_TO_FN_PTR(add_long_func_t*, StubRoutines::atomic_add_long_entry());
- 
-   if (func != NULL) {
-     os::atomic_add_long_func = func;
-     return (*func)(add_value, dest);
-   }
-   assert(Threads::number_of_threads() == 0, "for bootstrap only");
- 
-   return (*dest) += add_value;
- }
- 
- xchg_func_t*         os::atomic_xchg_func         = os::atomic_xchg_bootstrap;
- xchg_long_func_t*    os::atomic_xchg_long_func    = os::atomic_xchg_long_bootstrap;
- cmpxchg_func_t*      os::atomic_cmpxchg_func      = os::atomic_cmpxchg_bootstrap;
- cmpxchg_byte_func_t* os::atomic_cmpxchg_byte_func = os::atomic_cmpxchg_byte_bootstrap;
- add_func_t*          os::atomic_add_func          = os::atomic_add_bootstrap;
- add_long_func_t*     os::atomic_add_long_func     = os::atomic_add_long_bootstrap;
- 
- #endif // AMD64
- 
- cmpxchg_long_func_t* os::atomic_cmpxchg_long_func = os::atomic_cmpxchg_long_bootstrap;
- 
  #ifdef AMD64
  /*
   * Windows/x64 does not use stack frames the way expected by Java:
   * [1] in most cases, there is no frame pointer. All locals are addressed via RSP
   * [2] in rare cases, when alloca() is used, a frame pointer is used, but this may
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