16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "asm/assembler.hpp"
  27 #include "assembler_x86.inline.hpp"
  28 #include "runtime/os.hpp"
  29 #include "runtime/threadLocalStorage.hpp"
  30 
  31 #ifndef _LP64
  32 void MacroAssembler::int3() {
  33   call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  34 }
  35 
  36 #ifdef MINIMIZE_RAM_USAGE
  37 
  38 void MacroAssembler::get_thread(Register thread) {
  39   // call pthread_getspecific
  40   // void * pthread_getspecific(pthread_key_t key);
  41   if (thread != rax) push(rax);
  42   push(rcx);
  43   push(rdx);
  44 
  45   push(ThreadLocalStorage::thread_index());
  46   call(RuntimeAddress(CAST_FROM_FN_PTR(address, pthread_getspecific)));
  47   increment(rsp, wordSize);
  48 
  49   pop(rdx);
  50   pop(rcx);
  51   if (thread != rax) {
  52     mov(thread, rax);
  53     pop(rax);
  54   }
  55 }
  56 
  57 #else
  58 void MacroAssembler::get_thread(Register thread) {
  59   movl(thread, rsp);
  60   shrl(thread, PAGE_SHIFT);
  61 
  62   ExternalAddress tls_base((address)ThreadLocalStorage::sp_map_addr());
  63   Address index(noreg, thread, Address::times_4);
  64   ArrayAddress tls(tls_base, index);
  65 
  66   movptr(thread, tls);
  67 }
  68 #endif // MINIMIZE_RAM_USAGE
  69 #else
  70 void MacroAssembler::int3() {
  71   call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  72 }
  73 
  74 void MacroAssembler::get_thread(Register thread) {
  75   // call pthread_getspecific
  76   // void * pthread_getspecific(pthread_key_t key);
  77    if (thread != rax) {
  78      push(rax);
  79    }
  80    push(rdi);
  81    push(rsi);
  82    push(rdx);
  83    push(rcx);
  84    push(r8);
  85    push(r9);
  86    push(r10);
  87    // XXX
  88    mov(r10, rsp);

  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "asm/assembler.hpp"
  27 #include "assembler_x86.inline.hpp"
  28 #include "runtime/os.hpp"
  29 #include "runtime/threadLocalStorage.hpp"
  30 
  31 #ifndef _LP64
  32 void MacroAssembler::int3() {
  33   call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  34 }
  35 


  36 void MacroAssembler::get_thread(Register thread) {




















  37   movl(thread, rsp);
  38   shrl(thread, PAGE_SHIFT);
  39 
  40   ExternalAddress tls_base((address)ThreadLocalStorage::sp_map_addr());
  41   Address index(noreg, thread, Address::times_4);
  42   ArrayAddress tls(tls_base, index);
  43 
  44   movptr(thread, tls);
  45 }

  46 #else
  47 void MacroAssembler::int3() {
  48   call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
  49 }
  50 
  51 void MacroAssembler::get_thread(Register thread) {
  52   // call pthread_getspecific
  53   // void * pthread_getspecific(pthread_key_t key);
  54    if (thread != rax) {
  55      push(rax);
  56    }
  57    push(rdi);
  58    push(rsi);
  59    push(rdx);
  60    push(rcx);
  61    push(r8);
  62    push(r9);
  63    push(r10);
  64    // XXX
  65    mov(r10, rsp);