src/cpu/x86/vm/relocInfo_x86.cpp
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src/cpu/x86/vm/relocInfo_x86.cpp

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  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_relocInfo_x86.cpp.incl"
  27 
  28 
  29 void Relocation::pd_set_data_value(address x, intptr_t o) {
  30 #ifdef AMD64
  31   x += o;
  32   typedef Assembler::WhichOperand WhichOperand;
  33   WhichOperand which = (WhichOperand) format(); // that is, disp32 or imm64, call32
  34   assert(which == Assembler::disp32_operand ||

  35          which == Assembler::imm64_operand, "format unpacks ok");
  36   if (which == Assembler::imm64_operand) {
  37     *pd_address_in_code() = x;



  38   } else {
  39     // Note:  Use runtime_call_type relocations for call32_operand.
  40     address ip = addr();
  41     address disp = Assembler::locate_operand(ip, which);
  42     address next_ip = Assembler::locate_next_instruction(ip);
  43     *(int32_t*) disp = x - next_ip;
  44   }
  45 #else
  46   *pd_address_in_code() = x + o;
  47 #endif // AMD64
  48 }
  49 
  50 
  51 address Relocation::pd_call_destination(address orig_addr) {
  52   intptr_t adj = 0;
  53   if (orig_addr != NULL) {
  54     // We just moved this call instruction from orig_addr to addr().
  55     // This means its target will appear to have grown by addr() - orig_addr.
  56     adj = -( addr() - orig_addr );
  57   }




  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_relocInfo_x86.cpp.incl"
  27 
  28 
  29 void Relocation::pd_set_data_value(address x, intptr_t o) {
  30 #ifdef AMD64
  31   x += o;
  32   typedef Assembler::WhichOperand WhichOperand;
  33   WhichOperand which = (WhichOperand) format(); // that is, disp32 or imm64, call32, narrow oop
  34   assert(which == Assembler::disp32_operand ||
  35          which == Assembler::narrow_oop_operand ||
  36          which == Assembler::imm64_operand, "format unpacks ok");
  37   if (which == Assembler::imm64_operand) {
  38     *pd_address_in_code() = x;
  39   } else if (which == Assembler::narrow_oop_operand) {
  40     address disp = Assembler::locate_operand(addr(), which);
  41     *(int32_t*) disp = oopDesc::encode_heap_oop((oop)x);
  42   } else {
  43     // Note:  Use runtime_call_type relocations for call32_operand.
  44     address ip = addr();
  45     address disp = Assembler::locate_operand(ip, which);
  46     address next_ip = Assembler::locate_next_instruction(ip);
  47     *(int32_t*) disp = x - next_ip;
  48   }
  49 #else
  50   *pd_address_in_code() = x + o;
  51 #endif // AMD64
  52 }
  53 
  54 
  55 address Relocation::pd_call_destination(address orig_addr) {
  56   intptr_t adj = 0;
  57   if (orig_addr != NULL) {
  58     // We just moved this call instruction from orig_addr to addr().
  59     // This means its target will appear to have grown by addr() - orig_addr.
  60     adj = -( addr() - orig_addr );
  61   }


src/cpu/x86/vm/relocInfo_x86.cpp
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