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comparison src/cpu/x86/vm/methodHandles_x86.cpp @ 1133:aa62b9388fce

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6894206: JVM needs a way to traverse method handle structures Summary: We need a way to walk chained method handles in the JVM to call the right methods and to generate required bytecode adapters for the compilers. Reviewed-by: kvn
author twisti
date Mon, 04 Jan 2010 15:52:40 +0100
parents 85f13cdfbc1d
children e66fd840cb6b
comparison
equal deleted inserted replaced
1131:40e7c1d24e4a 1133:aa62b9388fce
266 // And adjust the argslot address to point at the deletion point. 266 // And adjust the argslot address to point at the deletion point.
267 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); 267 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr));
268 } 268 }
269 269
270 #ifndef PRODUCT 270 #ifndef PRODUCT
271 extern "C" void print_method_handle(oop mh);
271 void trace_method_handle_stub(const char* adaptername, 272 void trace_method_handle_stub(const char* adaptername,
272 oopDesc* mh, 273 oop mh,
273 intptr_t* entry_sp, 274 intptr_t* entry_sp,
274 intptr_t* saved_sp, 275 intptr_t* saved_sp,
275 intptr_t* saved_bp) { 276 intptr_t* saved_bp) {
276 // called as a leaf from native code: do not block the JVM! 277 // called as a leaf from native code: do not block the JVM!
277 intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; 278 intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset];
278 intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; 279 intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset];
279 printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", 280 printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n",
280 adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); 281 adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp);
281 if (last_sp != saved_sp) 282 if (last_sp != saved_sp)
282 printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); 283 printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp);
284 if (Verbose) print_method_handle(mh);
283 } 285 }
284 #endif //PRODUCT 286 #endif //PRODUCT
285 287
286 // Generate an "entry" field for a method handle. 288 // Generate an "entry" field for a method handle.
287 // This determines how the method handle will respond to calls. 289 // This determines how the method handle will respond to calls.