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Issue 7350014: Remove the ability to compile without logging and profiling (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressed review comments Created 9 years, 5 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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3736 // 3736 //
3737 // Stack: 3737 // Stack:
3738 // caller fp | 3738 // caller fp |
3739 // function slot | entry frame 3739 // function slot | entry frame
3740 // context slot | 3740 // context slot |
3741 // bad fp (0xff...f) | 3741 // bad fp (0xff...f) |
3742 // callee saved registers + ra 3742 // callee saved registers + ra
3743 // 4 args slots 3743 // 4 args slots
3744 // args 3744 // args
3745 3745
3746 #ifdef ENABLE_LOGGING_AND_PROFILING 3746 // If this is the outermost JS call, set js_entry_sp value.
3747 // If this is the outermost JS call, set js_entry_sp value. 3747 Label non_outermost_js;
3748 Label non_outermost_js; 3748 ExternalReference js_entry_sp(Isolate::k_js_entry_sp_address,
3749 ExternalReference js_entry_sp(Isolate::k_js_entry_sp_address, 3749 masm->isolate());
3750 masm->isolate()); 3750 __ li(t1, Operand(ExternalReference(js_entry_sp)));
3751 __ li(t1, Operand(ExternalReference(js_entry_sp))); 3751 __ lw(t2, MemOperand(t1));
3752 __ lw(t2, MemOperand(t1)); 3752 __ Branch(&non_outermost_js, ne, t2, Operand(zero_reg));
3753 __ Branch(&non_outermost_js, ne, t2, Operand(zero_reg)); 3753 __ sw(fp, MemOperand(t1));
3754 __ sw(fp, MemOperand(t1)); 3754 __ li(t0, Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME)));
3755 __ li(t0, Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME))); 3755 Label cont;
3756 Label cont; 3756 __ b(&cont);
3757 __ b(&cont); 3757 __ nop(); // Branch delay slot nop.
3758 __ nop(); // Branch delay slot nop. 3758 __ bind(&non_outermost_js);
3759 __ bind(&non_outermost_js); 3759 __ li(t0, Operand(Smi::FromInt(StackFrame::INNER_JSENTRY_FRAME)));
3760 __ li(t0, Operand(Smi::FromInt(StackFrame::INNER_JSENTRY_FRAME))); 3760 __ bind(&cont);
3761 __ bind(&cont); 3761 __ push(t0);
3762 __ push(t0);
3763 #endif
3764 3762
3765 // Call a faked try-block that does the invoke. 3763 // Call a faked try-block that does the invoke.
3766 __ bal(&invoke); // bal exposes branch delay slot. 3764 __ bal(&invoke); // bal exposes branch delay slot.
3767 __ nop(); // Branch delay slot nop. 3765 __ nop(); // Branch delay slot nop.
3768 3766
3769 // Caught exception: Store result (exception) in the pending 3767 // Caught exception: Store result (exception) in the pending
3770 // exception field in the JSEnv and return a failure sentinel. 3768 // exception field in the JSEnv and return a failure sentinel.
3771 // Coming in here the fp will be invalid because the PushTryHandler below 3769 // Coming in here the fp will be invalid because the PushTryHandler below
3772 // sets it to 0 to signal the existence of the JSEntry frame. 3770 // sets it to 0 to signal the existence of the JSEntry frame.
3773 __ li(t0, Operand(ExternalReference(Isolate::k_pending_exception_address, 3771 __ li(t0, Operand(ExternalReference(Isolate::k_pending_exception_address,
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3822 __ lw(t9, MemOperand(t0)); // Deref address. 3820 __ lw(t9, MemOperand(t0)); // Deref address.
3823 3821
3824 // Call JSEntryTrampoline. 3822 // Call JSEntryTrampoline.
3825 __ addiu(t9, t9, Code::kHeaderSize - kHeapObjectTag); 3823 __ addiu(t9, t9, Code::kHeaderSize - kHeapObjectTag);
3826 __ Call(t9); 3824 __ Call(t9);
3827 3825
3828 // Unlink this frame from the handler chain. 3826 // Unlink this frame from the handler chain.
3829 __ PopTryHandler(); 3827 __ PopTryHandler();
3830 3828
3831 __ bind(&exit); // v0 holds result 3829 __ bind(&exit); // v0 holds result
3832 #ifdef ENABLE_LOGGING_AND_PROFILING 3830 // Check if the current stack frame is marked as the outermost JS frame.
3833 // Check if the current stack frame is marked as the outermost JS frame. 3831 Label non_outermost_js_2;
3834 Label non_outermost_js_2; 3832 __ pop(t1);
3835 __ pop(t1); 3833 __ Branch(&non_outermost_js_2, ne, t1,
3836 __ Branch(&non_outermost_js_2, ne, t1, 3834 Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME)));
3837 Operand(Smi::FromInt(StackFrame::OUTERMOST_JSENTRY_FRAME))); 3835 __ li(t1, Operand(ExternalReference(js_entry_sp)));
3838 __ li(t1, Operand(ExternalReference(js_entry_sp))); 3836 __ sw(zero_reg, MemOperand(t1));
3839 __ sw(zero_reg, MemOperand(t1)); 3837 __ bind(&non_outermost_js_2);
3840 __ bind(&non_outermost_js_2);
3841 #endif
3842 3838
3843 // Restore the top frame descriptors from the stack. 3839 // Restore the top frame descriptors from the stack.
3844 __ pop(t1); 3840 __ pop(t1);
3845 __ li(t0, Operand(ExternalReference(Isolate::k_c_entry_fp_address, 3841 __ li(t0, Operand(ExternalReference(Isolate::k_c_entry_fp_address,
3846 masm->isolate()))); 3842 masm->isolate())));
3847 __ sw(t1, MemOperand(t0)); 3843 __ sw(t1, MemOperand(t0));
3848 3844
3849 // Reset the stack to the callee saved registers. 3845 // Reset the stack to the callee saved registers.
3850 __ addiu(sp, sp, -EntryFrameConstants::kCallerFPOffset); 3846 __ addiu(sp, sp, -EntryFrameConstants::kCallerFPOffset);
3851 3847
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6873 __ mov(result, zero_reg); 6869 __ mov(result, zero_reg);
6874 __ Ret(); 6870 __ Ret();
6875 } 6871 }
6876 6872
6877 6873
6878 #undef __ 6874 #undef __
6879 6875
6880 } } // namespace v8::internal 6876 } } // namespace v8::internal
6881 6877
6882 #endif // V8_TARGET_ARCH_MIPS 6878 #endif // V8_TARGET_ARCH_MIPS
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