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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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1077 // the context will be set to (cp == 0) for non-JS frames. | 1077 // the context will be set to (cp == 0) for non-JS frames. |
1078 __ cmp(cp, Operand(0)); | 1078 __ cmp(cp, Operand(0)); |
1079 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset), ne); | 1079 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset), ne); |
1080 | 1080 |
1081 // Compute the handler entry address and jump to it. | 1081 // Compute the handler entry address and jump to it. |
1082 ConstantPoolUnavailableScope constant_pool_unavailable(masm); | 1082 ConstantPoolUnavailableScope constant_pool_unavailable(masm); |
1083 __ mov(r1, Operand(pending_handler_code_address)); | 1083 __ mov(r1, Operand(pending_handler_code_address)); |
1084 __ ldr(r1, MemOperand(r1)); | 1084 __ ldr(r1, MemOperand(r1)); |
1085 __ mov(r2, Operand(pending_handler_offset_address)); | 1085 __ mov(r2, Operand(pending_handler_offset_address)); |
1086 __ ldr(r2, MemOperand(r2)); | 1086 __ ldr(r2, MemOperand(r2)); |
1087 if (FLAG_enable_ool_constant_pool) { | 1087 if (FLAG_enable_embedded_constant_pool) { |
1088 __ ldr(pp, FieldMemOperand(r1, Code::kConstantPoolOffset)); | 1088 __ LoadConstantPoolPointerRegisterFromCodeTargetAddress(r1); |
1089 } | 1089 } |
1090 __ add(r1, r1, Operand(Code::kHeaderSize - kHeapObjectTag)); | 1090 __ add(r1, r1, Operand(Code::kHeaderSize - kHeapObjectTag)); |
1091 __ add(pc, r1, r2); | 1091 __ add(pc, r1, r2); |
1092 } | 1092 } |
1093 | 1093 |
1094 | 1094 |
1095 void JSEntryStub::Generate(MacroAssembler* masm) { | 1095 void JSEntryStub::Generate(MacroAssembler* masm) { |
1096 // r0: code entry | 1096 // r0: code entry |
1097 // r1: function | 1097 // r1: function |
1098 // r2: receiver | 1098 // r2: receiver |
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1125 offset_to_argv += kNumDoubleCalleeSaved * kDoubleSize; | 1125 offset_to_argv += kNumDoubleCalleeSaved * kDoubleSize; |
1126 __ ldr(r4, MemOperand(sp, offset_to_argv)); | 1126 __ ldr(r4, MemOperand(sp, offset_to_argv)); |
1127 | 1127 |
1128 // Push a frame with special values setup to mark it as an entry frame. | 1128 // Push a frame with special values setup to mark it as an entry frame. |
1129 // r0: code entry | 1129 // r0: code entry |
1130 // r1: function | 1130 // r1: function |
1131 // r2: receiver | 1131 // r2: receiver |
1132 // r3: argc | 1132 // r3: argc |
1133 // r4: argv | 1133 // r4: argv |
1134 int marker = type(); | 1134 int marker = type(); |
1135 if (FLAG_enable_ool_constant_pool) { | 1135 if (FLAG_enable_embedded_constant_pool) { |
1136 __ mov(r8, Operand(isolate()->factory()->empty_constant_pool_array())); | 1136 __ mov(r8, Operand::Zero()); |
1137 } | 1137 } |
1138 __ mov(r7, Operand(Smi::FromInt(marker))); | 1138 __ mov(r7, Operand(Smi::FromInt(marker))); |
1139 __ mov(r6, Operand(Smi::FromInt(marker))); | 1139 __ mov(r6, Operand(Smi::FromInt(marker))); |
1140 __ mov(r5, | 1140 __ mov(r5, |
1141 Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); | 1141 Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate()))); |
1142 __ ldr(r5, MemOperand(r5)); | 1142 __ ldr(r5, MemOperand(r5)); |
1143 __ mov(ip, Operand(-1)); // Push a bad frame pointer to fail if it is used. | 1143 __ mov(ip, Operand(-1)); // Push a bad frame pointer to fail if it is used. |
1144 __ stm(db_w, sp, r5.bit() | r6.bit() | r7.bit() | | 1144 __ stm(db_w, sp, r5.bit() | r6.bit() | r7.bit() | |
1145 (FLAG_enable_ool_constant_pool ? r8.bit() : 0) | | 1145 (FLAG_enable_embedded_constant_pool ? r8.bit() : 0) | |
1146 ip.bit()); | 1146 ip.bit()); |
1147 | 1147 |
1148 // Set up frame pointer for the frame to be pushed. | 1148 // Set up frame pointer for the frame to be pushed. |
1149 __ add(fp, sp, Operand(-EntryFrameConstants::kCallerFPOffset)); | 1149 __ add(fp, sp, Operand(-EntryFrameConstants::kCallerFPOffset)); |
1150 | 1150 |
1151 // If this is the outermost JS call, set js_entry_sp value. | 1151 // If this is the outermost JS call, set js_entry_sp value. |
1152 Label non_outermost_js; | 1152 Label non_outermost_js; |
1153 ExternalReference js_entry_sp(Isolate::kJSEntrySPAddress, isolate()); | 1153 ExternalReference js_entry_sp(Isolate::kJSEntrySPAddress, isolate()); |
1154 __ mov(r5, Operand(ExternalReference(js_entry_sp))); | 1154 __ mov(r5, Operand(ExternalReference(js_entry_sp))); |
1155 __ ldr(r6, MemOperand(r5)); | 1155 __ ldr(r6, MemOperand(r5)); |
1156 __ cmp(r6, Operand::Zero()); | 1156 __ cmp(r6, Operand::Zero()); |
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5293 kStackUnwindSpace, NULL, | 5293 kStackUnwindSpace, NULL, |
5294 MemOperand(fp, 6 * kPointerSize), NULL); | 5294 MemOperand(fp, 6 * kPointerSize), NULL); |
5295 } | 5295 } |
5296 | 5296 |
5297 | 5297 |
5298 #undef __ | 5298 #undef __ |
5299 | 5299 |
5300 } } // namespace v8::internal | 5300 } } // namespace v8::internal |
5301 | 5301 |
5302 #endif // V8_TARGET_ARCH_ARM | 5302 #endif // V8_TARGET_ARCH_ARM |
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