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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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| 290 void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); } | 290 void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); } |
| 291 | 291 |
| 292 void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); } | 292 void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); } |
| 293 void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); } | 293 void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); } |
| 294 | 294 |
| 295 // Enter exit frame. | 295 // Enter exit frame. |
| 296 // stack_space - extra stack space, used for alignment before call to C. | 296 // stack_space - extra stack space, used for alignment before call to C. |
| 297 void EnterExitFrame(bool save_doubles, int stack_space = 0); | 297 void EnterExitFrame(bool save_doubles, int stack_space = 0); |
| 298 | 298 |
| 299 // Leave the current exit frame. Expects the return value in r0. | 299 // Leave the current exit frame. Expects the return value in r0. |
| 300 void LeaveExitFrame(bool save_doubles); | 300 // Expect the number of values, pushed prior to the exit frame, to |
| 301 // remove in a register (or no_reg, if there is nothing to remove). |
| 302 void LeaveExitFrame(bool save_doubles, Register argument_count); |
| 301 | 303 |
| 302 // Get the actual activation frame alignment for target environment. | 304 // Get the actual activation frame alignment for target environment. |
| 303 static int ActivationFrameAlignment(); | 305 static int ActivationFrameAlignment(); |
| 304 | 306 |
| 305 void LoadContext(Register dst, int context_chain_length); | 307 void LoadContext(Register dst, int context_chain_length); |
| 306 | 308 |
| 307 void LoadGlobalFunction(int index, Register function); | 309 void LoadGlobalFunction(int index, Register function); |
| 308 | 310 |
| 309 // Load the initial map from the global function. The registers | 311 // Load the initial map from the global function. The registers |
| 310 // function and map can be the same, function is then overwritten. | 312 // function and map can be the same, function is then overwritten. |
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| 364 | 366 |
| 365 // Push a new try handler and link into try handler chain. | 367 // Push a new try handler and link into try handler chain. |
| 366 // The return address must be passed in register lr. | 368 // The return address must be passed in register lr. |
| 367 // On exit, r0 contains TOS (code slot). | 369 // On exit, r0 contains TOS (code slot). |
| 368 void PushTryHandler(CodeLocation try_location, HandlerType type); | 370 void PushTryHandler(CodeLocation try_location, HandlerType type); |
| 369 | 371 |
| 370 // Unlink the stack handler on top of the stack from the try handler chain. | 372 // Unlink the stack handler on top of the stack from the try handler chain. |
| 371 // Must preserve the result register. | 373 // Must preserve the result register. |
| 372 void PopTryHandler(); | 374 void PopTryHandler(); |
| 373 | 375 |
| 376 // Passes thrown value (in r0) to the handler of top of the try handler chain. |
| 377 void Throw(Register value); |
| 378 |
| 379 // Propagates an uncatchable exception to the top of the current JS stack's |
| 380 // handler chain. |
| 381 void ThrowUncatchable(UncatchableExceptionType type, Register value); |
| 382 |
| 374 // --------------------------------------------------------------------------- | 383 // --------------------------------------------------------------------------- |
| 375 // Inline caching support | 384 // Inline caching support |
| 376 | 385 |
| 377 // Generate code for checking access rights - used for security checks | 386 // Generate code for checking access rights - used for security checks |
| 378 // on access to global objects across environments. The holder register | 387 // on access to global objects across environments. The holder register |
| 379 // is left untouched, whereas both scratch registers are clobbered. | 388 // is left untouched, whereas both scratch registers are clobbered. |
| 380 void CheckAccessGlobalProxy(Register holder_reg, | 389 void CheckAccessGlobalProxy(Register holder_reg, |
| 381 Register scratch, | 390 Register scratch, |
| 382 Label* miss); | 391 Label* miss); |
| 383 | 392 |
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| 941 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) | 950 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__) |
| 942 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> | 951 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm-> |
| 943 #else | 952 #else |
| 944 #define ACCESS_MASM(masm) masm-> | 953 #define ACCESS_MASM(masm) masm-> |
| 945 #endif | 954 #endif |
| 946 | 955 |
| 947 | 956 |
| 948 } } // namespace v8::internal | 957 } } // namespace v8::internal |
| 949 | 958 |
| 950 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ | 959 #endif // V8_ARM_MACRO_ASSEMBLER_ARM_H_ |
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