mirror of https://github.com/lukechilds/node.git
Ryan Dahl
15 years ago
108 changed files with 7621 additions and 1615 deletions
@ -0,0 +1,267 @@ |
|||
// Copyright (c) 1994-2006 Sun Microsystems Inc.
|
|||
// All Rights Reserved.
|
|||
//
|
|||
// Redistribution and use in source and binary forms, with or without
|
|||
// modification, are permitted provided that the following conditions
|
|||
// are met:
|
|||
//
|
|||
// - Redistributions of source code must retain the above copyright notice,
|
|||
// this list of conditions and the following disclaimer.
|
|||
//
|
|||
// - Redistribution in binary form must reproduce the above copyright
|
|||
// notice, this list of conditions and the following disclaimer in the
|
|||
// documentation and/or other materials provided with the
|
|||
// distribution.
|
|||
//
|
|||
// - Neither the name of Sun Microsystems or the names of contributors may
|
|||
// be used to endorse or promote products derived from this software without
|
|||
// specific prior written permission.
|
|||
//
|
|||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|||
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|||
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|||
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|||
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|||
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|||
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|||
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|||
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|||
// OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
|
|||
// The original source code covered by the above license above has been modified
|
|||
// significantly by Google Inc.
|
|||
// Copyright 2006-2008 the V8 project authors. All rights reserved.
|
|||
|
|||
#ifndef V8_ARM_ASSEMBLER_THUMB2_INL_H_ |
|||
#define V8_ARM_ASSEMBLER_THUMB2_INL_H_ |
|||
|
|||
#include "arm/assembler-thumb2.h" |
|||
#include "cpu.h" |
|||
|
|||
|
|||
namespace v8 { |
|||
namespace internal { |
|||
|
|||
Condition NegateCondition(Condition cc) { |
|||
ASSERT(cc != al); |
|||
return static_cast<Condition>(cc ^ ne); |
|||
} |
|||
|
|||
|
|||
void RelocInfo::apply(intptr_t delta) { |
|||
if (RelocInfo::IsInternalReference(rmode_)) { |
|||
// absolute code pointer inside code object moves with the code object.
|
|||
int32_t* p = reinterpret_cast<int32_t*>(pc_); |
|||
*p += delta; // relocate entry
|
|||
} |
|||
// We do not use pc relative addressing on ARM, so there is
|
|||
// nothing else to do.
|
|||
} |
|||
|
|||
|
|||
Address RelocInfo::target_address() { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY); |
|||
return Assembler::target_address_at(pc_); |
|||
} |
|||
|
|||
|
|||
Address RelocInfo::target_address_address() { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY); |
|||
return reinterpret_cast<Address>(Assembler::target_address_address_at(pc_)); |
|||
} |
|||
|
|||
|
|||
void RelocInfo::set_target_address(Address target) { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY); |
|||
Assembler::set_target_address_at(pc_, target); |
|||
} |
|||
|
|||
|
|||
Object* RelocInfo::target_object() { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
|||
return Memory::Object_at(Assembler::target_address_address_at(pc_)); |
|||
} |
|||
|
|||
|
|||
Handle<Object> RelocInfo::target_object_handle(Assembler* origin) { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
|||
return Memory::Object_Handle_at(Assembler::target_address_address_at(pc_)); |
|||
} |
|||
|
|||
|
|||
Object** RelocInfo::target_object_address() { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
|||
return reinterpret_cast<Object**>(Assembler::target_address_address_at(pc_)); |
|||
} |
|||
|
|||
|
|||
void RelocInfo::set_target_object(Object* target) { |
|||
ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT); |
|||
Assembler::set_target_address_at(pc_, reinterpret_cast<Address>(target)); |
|||
} |
|||
|
|||
|
|||
Address* RelocInfo::target_reference_address() { |
|||
ASSERT(rmode_ == EXTERNAL_REFERENCE); |
|||
return reinterpret_cast<Address*>(Assembler::target_address_address_at(pc_)); |
|||
} |
|||
|
|||
|
|||
Address RelocInfo::call_address() { |
|||
ASSERT(IsPatchedReturnSequence()); |
|||
// The 2 instructions offset assumes patched return sequence.
|
|||
ASSERT(IsJSReturn(rmode())); |
|||
return Memory::Address_at(pc_ + 2 * Assembler::kInstrSize); |
|||
} |
|||
|
|||
|
|||
void RelocInfo::set_call_address(Address target) { |
|||
ASSERT(IsPatchedReturnSequence()); |
|||
// The 2 instructions offset assumes patched return sequence.
|
|||
ASSERT(IsJSReturn(rmode())); |
|||
Memory::Address_at(pc_ + 2 * Assembler::kInstrSize) = target; |
|||
} |
|||
|
|||
|
|||
Object* RelocInfo::call_object() { |
|||
return *call_object_address(); |
|||
} |
|||
|
|||
|
|||
Object** RelocInfo::call_object_address() { |
|||
ASSERT(IsPatchedReturnSequence()); |
|||
// The 2 instructions offset assumes patched return sequence.
|
|||
ASSERT(IsJSReturn(rmode())); |
|||
return reinterpret_cast<Object**>(pc_ + 2 * Assembler::kInstrSize); |
|||
} |
|||
|
|||
|
|||
void RelocInfo::set_call_object(Object* target) { |
|||
*call_object_address() = target; |
|||
} |
|||
|
|||
|
|||
bool RelocInfo::IsPatchedReturnSequence() { |
|||
// On ARM a "call instruction" is actually two instructions.
|
|||
// mov lr, pc
|
|||
// ldr pc, [pc, #XXX]
|
|||
return (Assembler::instr_at(pc_) == kMovLrPc) |
|||
&& ((Assembler::instr_at(pc_ + Assembler::kInstrSize) & kLdrPCPattern) |
|||
== kLdrPCPattern); |
|||
} |
|||
|
|||
|
|||
Operand::Operand(int32_t immediate, RelocInfo::Mode rmode) { |
|||
rm_ = no_reg; |
|||
imm32_ = immediate; |
|||
rmode_ = rmode; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(const char* s) { |
|||
rm_ = no_reg; |
|||
imm32_ = reinterpret_cast<int32_t>(s); |
|||
rmode_ = RelocInfo::EMBEDDED_STRING; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(const ExternalReference& f) { |
|||
rm_ = no_reg; |
|||
imm32_ = reinterpret_cast<int32_t>(f.address()); |
|||
rmode_ = RelocInfo::EXTERNAL_REFERENCE; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(Object** opp) { |
|||
rm_ = no_reg; |
|||
imm32_ = reinterpret_cast<int32_t>(opp); |
|||
rmode_ = RelocInfo::NONE; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(Context** cpp) { |
|||
rm_ = no_reg; |
|||
imm32_ = reinterpret_cast<int32_t>(cpp); |
|||
rmode_ = RelocInfo::NONE; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(Smi* value) { |
|||
rm_ = no_reg; |
|||
imm32_ = reinterpret_cast<intptr_t>(value); |
|||
rmode_ = RelocInfo::NONE; |
|||
} |
|||
|
|||
|
|||
Operand::Operand(Register rm) { |
|||
rm_ = rm; |
|||
rs_ = no_reg; |
|||
shift_op_ = LSL; |
|||
shift_imm_ = 0; |
|||
} |
|||
|
|||
|
|||
bool Operand::is_reg() const { |
|||
return rm_.is_valid() && |
|||
rs_.is(no_reg) && |
|||
shift_op_ == LSL && |
|||
shift_imm_ == 0; |
|||
} |
|||
|
|||
|
|||
void Assembler::CheckBuffer() { |
|||
if (buffer_space() <= kGap) { |
|||
GrowBuffer(); |
|||
} |
|||
if (pc_offset() >= next_buffer_check_) { |
|||
CheckConstPool(false, true); |
|||
} |
|||
} |
|||
|
|||
|
|||
void Assembler::emit(Instr x) { |
|||
CheckBuffer(); |
|||
*reinterpret_cast<Instr*>(pc_) = x; |
|||
pc_ += kInstrSize; |
|||
} |
|||
|
|||
|
|||
Address Assembler::target_address_address_at(Address pc) { |
|||
Instr instr = Memory::int32_at(pc); |
|||
// Verify that the instruction at pc is a ldr<cond> <Rd>, [pc +/- offset_12].
|
|||
ASSERT((instr & 0x0f7f0000) == 0x051f0000); |
|||
int offset = instr & 0xfff; // offset_12 is unsigned
|
|||
if ((instr & (1 << 23)) == 0) offset = -offset; // U bit defines offset sign
|
|||
// Verify that the constant pool comes after the instruction referencing it.
|
|||
ASSERT(offset >= -4); |
|||
return pc + offset + 8; |
|||
} |
|||
|
|||
|
|||
Address Assembler::target_address_at(Address pc) { |
|||
return Memory::Address_at(target_address_address_at(pc)); |
|||
} |
|||
|
|||
|
|||
void Assembler::set_target_at(Address constant_pool_entry, |
|||
Address target) { |
|||
Memory::Address_at(constant_pool_entry) = target; |
|||
} |
|||
|
|||
|
|||
void Assembler::set_target_address_at(Address pc, Address target) { |
|||
Memory::Address_at(target_address_address_at(pc)) = target; |
|||
// Intuitively, we would think it is necessary to flush the instruction cache
|
|||
// after patching a target address in the code as follows:
|
|||
// CPU::FlushICache(pc, sizeof(target));
|
|||
// However, on ARM, no instruction was actually patched by the assignment
|
|||
// above; the target address is not part of an instruction, it is patched in
|
|||
// the constant pool and is read via a data access; the instruction accessing
|
|||
// this address in the constant pool remains unchanged.
|
|||
} |
|||
|
|||
} } // namespace v8::internal
|
|||
|
|||
#endif // V8_ARM_ASSEMBLER_THUMB2_INL_H_
|
|||
File diff suppressed because it is too large
File diff suppressed because it is too large
@ -0,0 +1,35 @@ |
|||
// Copyright 2009 the V8 project authors. All rights reserved.
|
|||
// Redistribution and use in source and binary forms, with or without
|
|||
// modification, are permitted provided that the following conditions are
|
|||
// met:
|
|||
//
|
|||
// * Redistributions of source code must retain the above copyright
|
|||
// notice, this list of conditions and the following disclaimer.
|
|||
// * Redistributions in binary form must reproduce the above
|
|||
// copyright notice, this list of conditions and the following
|
|||
// disclaimer in the documentation and/or other materials provided
|
|||
// with the distribution.
|
|||
// * Neither the name of Google Inc. nor the names of its
|
|||
// contributors may be used to endorse or promote products derived
|
|||
// from this software without specific prior written permission.
|
|||
//
|
|||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|||
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|||
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|||
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|||
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|||
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|||
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|||
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|||
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
|
|||
// Flags: --always_fast_compiler
|
|||
|
|||
// Test reference to this-function.
|
|||
|
|||
var g = (function f(x) { |
|||
if (x == 1) return 42; else return f(1); |
|||
})(0); |
|||
assertEquals(42, g); |
|||
Some files were not shown because too many files changed in this diff
Loading…
Reference in new issue