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Side by Side Diff: src/mips/debug-mips.cc

Issue 9225055: MIPS: Fix and adapt debugger for new call target caches. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 10 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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236 236
237 void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) { 237 void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) {
238 // Calling convention for IC call (from ic-mips.cc). 238 // Calling convention for IC call (from ic-mips.cc).
239 // ----------- S t a t e ------------- 239 // ----------- S t a t e -------------
240 // -- a2: name 240 // -- a2: name
241 // ----------------------------------- 241 // -----------------------------------
242 Generate_DebugBreakCallHelper(masm, a2.bit(), 0); 242 Generate_DebugBreakCallHelper(masm, a2.bit(), 0);
243 } 243 }
244 244
245 245
246 void Debug::GenerateConstructCallDebugBreak(MacroAssembler* masm) {
247 // Calling convention for construct call (from builtins-mips.cc).
248 // -- a0 : number of arguments (not smi)
249 // -- a1 : constructor function
250 // -- a2 : cache cell for call target
251 Generate_DebugBreakCallHelper(masm, a1.bit() | a2.bit(), a0.bit());
252 }
253
254
255 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { 246 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) {
256 // In places other than IC call sites it is expected that v0 is TOS which 247 // In places other than IC call sites it is expected that v0 is TOS which
257 // is an object - this is not generally the case so this should be used with 248 // is an object - this is not generally the case so this should be used with
258 // care. 249 // care.
259 Generate_DebugBreakCallHelper(masm, v0.bit(), 0); 250 Generate_DebugBreakCallHelper(masm, v0.bit(), 0);
260 } 251 }
261 252
262 253
263 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { 254 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) {
264 // Register state for CallFunctionStub (from code-stubs-mips.cc). 255 // Register state for CallFunctionStub (from code-stubs-mips.cc).
265 // ----------- S t a t e ------------- 256 // ----------- S t a t e -------------
266 // -- a1 : function 257 // -- a1 : function
267 // ----------------------------------- 258 // -----------------------------------
268 Generate_DebugBreakCallHelper(masm, a1.bit(), 0); 259 Generate_DebugBreakCallHelper(masm, a1.bit(), 0);
269 } 260 }
270 261
271 262
263 void Debug::GenerateCallFunctionStubRecordDebugBreak(MacroAssembler* masm) {
264 // Register state for CallFunctionStub (from code-stubs-mips.cc).
265 // ----------- S t a t e -------------
266 // -- a1 : function
267 // -- a2 : cache cell for call target
268 // -----------------------------------
269 Generate_DebugBreakCallHelper(masm, a1.bit() | a2.bit(), 0);
270 }
271
272
273 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) {
274 // Calling convention for CallConstructStub (from code-stubs-mips.cc).
275 // ----------- S t a t e -------------
276 // -- a0 : number of arguments (not smi)
277 // -- a1 : constructor function
278 // -----------------------------------
279 Generate_DebugBreakCallHelper(masm, a1.bit() , a0.bit());
280 }
281
282
283 void Debug::GenerateCallConstructStubRecordDebugBreak(MacroAssembler* masm) {
284 // Calling convention for CallConstructStub (from code-stubs-mips.cc).
285 // ----------- S t a t e -------------
286 // -- a0 : number of arguments (not smi)
287 // -- a1 : constructor function
288 // -- a2 : cache cell for call target
289 // -----------------------------------
290 Generate_DebugBreakCallHelper(masm, a1.bit() | a2.bit(), a0.bit());
291 }
292
293
272 void Debug::GenerateSlot(MacroAssembler* masm) { 294 void Debug::GenerateSlot(MacroAssembler* masm) {
273 // Generate enough nop's to make space for a call instruction. Avoid emitting 295 // Generate enough nop's to make space for a call instruction. Avoid emitting
274 // the trampoline pool in the debug break slot code. 296 // the trampoline pool in the debug break slot code.
275 Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm); 297 Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm);
276 Label check_codesize; 298 Label check_codesize;
277 __ bind(&check_codesize); 299 __ bind(&check_codesize);
278 __ RecordDebugBreakSlot(); 300 __ RecordDebugBreakSlot();
279 for (int i = 0; i < Assembler::kDebugBreakSlotInstructions; i++) { 301 for (int i = 0; i < Assembler::kDebugBreakSlotInstructions; i++) {
280 __ nop(MacroAssembler::DEBUG_BREAK_NOP); 302 __ nop(MacroAssembler::DEBUG_BREAK_NOP);
281 } 303 }
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304 const bool Debug::kFrameDropperSupported = false; 326 const bool Debug::kFrameDropperSupported = false;
305 327
306 #undef __ 328 #undef __
307 329
308 330
309 #endif // ENABLE_DEBUGGER_SUPPORT 331 #endif // ENABLE_DEBUGGER_SUPPORT
310 332
311 } } // namespace v8::internal 333 } } // namespace v8::internal
312 334
313 #endif // V8_TARGET_ARCH_MIPS 335 #endif // V8_TARGET_ARCH_MIPS
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