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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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250 void StubReturn(int argc); | 250 void StubReturn(int argc); |
251 | 251 |
252 // Call a runtime routine. | 252 // Call a runtime routine. |
253 // Eventually this should be used for all C calls. | 253 // Eventually this should be used for all C calls. |
254 void CallRuntime(Runtime::Function* f, int num_arguments); | 254 void CallRuntime(Runtime::Function* f, int num_arguments); |
255 | 255 |
256 // Convenience function: Same as above, but takes the fid instead. | 256 // Convenience function: Same as above, but takes the fid instead. |
257 void CallRuntime(Runtime::FunctionId fid, int num_arguments); | 257 void CallRuntime(Runtime::FunctionId fid, int num_arguments); |
258 | 258 |
259 // Tail call of a runtime routine (jump). | 259 // Tail call of a runtime routine (jump). |
260 // Like JumpToBuiltin, but also takes care of passing the number | 260 // Like JumpToRuntime, but also takes care of passing the number |
261 // of parameters. | 261 // of parameters. |
262 void TailCallRuntime(const ExternalReference& ext, | 262 void TailCallRuntime(const ExternalReference& ext, |
263 int num_arguments, | 263 int num_arguments, |
264 int result_size); | 264 int result_size); |
265 | 265 |
266 // Jump to the builtin routine. | 266 // Jump to a runtime routine. |
267 void JumpToBuiltin(const ExternalReference& builtin); | 267 void JumpToRuntime(const ExternalReference& builtin); |
268 | 268 |
269 // Invoke specified builtin JavaScript function. Adds an entry to | 269 // Invoke specified builtin JavaScript function. Adds an entry to |
270 // the unresolved list if the name does not resolve. | 270 // the unresolved list if the name does not resolve. |
271 void InvokeBuiltin(Builtins::JavaScript id, InvokeJSFlags flags); | 271 void InvokeBuiltin(Builtins::JavaScript id, InvokeJSFlags flags); |
272 | 272 |
273 // Store the code object for the given builtin in the target register and | 273 // Store the code object for the given builtin in the target register and |
274 // setup the function in r1. | 274 // setup the function in r1. |
275 void GetBuiltinEntry(Register target, Builtins::JavaScript id); | 275 void GetBuiltinEntry(Register target, Builtins::JavaScript id); |
276 | 276 |
277 struct Unresolved { | 277 struct Unresolved { |
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322 // object on installation. | 322 // object on installation. |
323 | 323 |
324 // Helper functions for generating invokes. | 324 // Helper functions for generating invokes. |
325 void InvokePrologue(const ParameterCount& expected, | 325 void InvokePrologue(const ParameterCount& expected, |
326 const ParameterCount& actual, | 326 const ParameterCount& actual, |
327 Handle<Code> code_constant, | 327 Handle<Code> code_constant, |
328 Register code_reg, | 328 Register code_reg, |
329 Label* done, | 329 Label* done, |
330 InvokeFlag flag); | 330 InvokeFlag flag); |
331 | 331 |
332 // Get the code for the given builtin. Returns if able to resolve | 332 // Prepares for a call or jump to a builtin by doing two things: |
333 // the function in the 'resolved' flag. | 333 // 1. Emits code that fetches the builtin's function object from the context |
| 334 // at runtime, and puts it in the register rdi. |
| 335 // 2. Fetches the builtin's code object, and returns it in a handle, at |
| 336 // compile time, so that later code can emit instructions to jump or call |
| 337 // the builtin directly. If the code object has not yet been created, it |
| 338 // returns the builtin code object for IllegalFunction, and sets the |
| 339 // output parameter "resolved" to false. Code that uses the return value |
| 340 // should then add the address and the builtin name to the list of fixups |
| 341 // called unresolved_, which is fixed up by the bootstrapper. |
334 Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); | 342 Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved); |
335 | 343 |
336 // Activation support. | 344 // Activation support. |
337 void EnterFrame(StackFrame::Type type); | 345 void EnterFrame(StackFrame::Type type); |
338 void LeaveFrame(StackFrame::Type type); | 346 void LeaveFrame(StackFrame::Type type); |
339 }; | 347 }; |
340 | 348 |
341 | 349 |
342 #ifdef ENABLE_DEBUGGER_SUPPORT | 350 #ifdef ENABLE_DEBUGGER_SUPPORT |
343 // The code patcher is used to patch (typically) small parts of code e.g. for | 351 // The code patcher is used to patch (typically) small parts of code e.g. for |
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383 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 391 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
384 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 392 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
385 #else | 393 #else |
386 #define ACCESS_MASM(masm) masm-> | 394 #define ACCESS_MASM(masm) masm-> |
387 #endif | 395 #endif |
388 | 396 |
389 | 397 |
390 } } // namespace v8::internal | 398 } } // namespace v8::internal |
391 | 399 |
392 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 400 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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