src/os_cpu/solaris_sparc/vm/assembler_solaris_sparc.cpp

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   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  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/macroAssembler.inline.hpp"
  27 #include "runtime/os.hpp"
  28 #include "runtime/threadLocalStorage.hpp"
  29 
  30 #include <sys/trap.h>          // For trap numbers
  31 #include <v9/sys/psr_compat.h> // For V8 compatibility
  32 
  33 void MacroAssembler::read_ccr_trap(Register ccr_save) {
  34   // Execute a trap to get the PSR, mask and shift
  35   // to get the condition codes.
  36   get_psr_trap();
  37   nop();
  38   set(PSR_ICC, ccr_save);
  39   and3(O0, ccr_save, ccr_save);
  40   srl(ccr_save, PSR_ICC_SHIFT, ccr_save);
  41 }
  42 
  43 void MacroAssembler::write_ccr_trap(Register ccr_save, Register scratch1, Register scratch2) {
  44   // Execute a trap to get the PSR, shift back
  45   // the condition codes, mask the condition codes
  46   // back into and PSR and trap to write back the
  47   // PSR.
  48   sll(ccr_save, PSR_ICC_SHIFT, scratch2);
  49   get_psr_trap();
  50   nop();
  51   set(~PSR_ICC, scratch1);
  52   and3(O0, scratch1, O0);
  53   or3(O0, scratch2, O0);
  54   set_psr_trap();
  55   nop();
  56 }
  57 
  58 void MacroAssembler::flush_windows_trap() { trap(ST_FLUSH_WINDOWS); }
  59 void MacroAssembler::clean_windows_trap() { trap(ST_CLEAN_WINDOWS); }
  60 void MacroAssembler::get_psr_trap()       { trap(ST_GETPSR); }
  61 void MacroAssembler::set_psr_trap()       { trap(ST_SETPSR); }


   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  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 // Empty