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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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 |
| (...skipping 141 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 152 __ mov(reg, Operand(reg, LSL, kSmiTagSize)); | 152 __ mov(reg, Operand(reg, LSL, kSmiTagSize)); |
| 153 } | 153 } |
| 154 } | 154 } |
| 155 __ stm(db_w, sp, object_regs | non_object_regs); | 155 __ stm(db_w, sp, object_regs | non_object_regs); |
| 156 } | 156 } |
| 157 | 157 |
| 158 #ifdef DEBUG | 158 #ifdef DEBUG |
| 159 __ RecordComment("// Calling from debug break to runtime - come in - over"); | 159 __ RecordComment("// Calling from debug break to runtime - come in - over"); |
| 160 #endif | 160 #endif |
| 161 __ mov(r0, Operand(0, RelocInfo::NONE)); // no arguments | 161 __ mov(r0, Operand(0, RelocInfo::NONE)); // no arguments |
| 162 __ mov(r1, Operand(ExternalReference::debug_break())); | 162 __ mov(r1, Operand(ExternalReference::debug_break(masm->isolate()))); |
| 163 | 163 |
| 164 CEntryStub ceb(1); | 164 CEntryStub ceb(1); |
| 165 __ CallStub(&ceb); | 165 __ CallStub(&ceb); |
| 166 | 166 |
| 167 // Restore the register values from the expression stack. | 167 // Restore the register values from the expression stack. |
| 168 if ((object_regs | non_object_regs) != 0) { | 168 if ((object_regs | non_object_regs) != 0) { |
| 169 __ ldm(ia_w, sp, object_regs | non_object_regs); | 169 __ ldm(ia_w, sp, object_regs | non_object_regs); |
| 170 for (int i = 0; i < kNumJSCallerSaved; i++) { | 170 for (int i = 0; i < kNumJSCallerSaved; i++) { |
| 171 int r = JSCallerSavedCode(i); | 171 int r = JSCallerSavedCode(i); |
| 172 Register reg = { r }; | 172 Register reg = { r }; |
| 173 if ((non_object_regs & (1 << r)) != 0) { | 173 if ((non_object_regs & (1 << r)) != 0) { |
| 174 __ mov(reg, Operand(reg, LSR, kSmiTagSize)); | 174 __ mov(reg, Operand(reg, LSR, kSmiTagSize)); |
| 175 } | 175 } |
| 176 if (FLAG_debug_code && | 176 if (FLAG_debug_code && |
| 177 (((object_regs |non_object_regs) & (1 << r)) == 0)) { | 177 (((object_regs |non_object_regs) & (1 << r)) == 0)) { |
| 178 __ mov(reg, Operand(kDebugZapValue)); | 178 __ mov(reg, Operand(kDebugZapValue)); |
| 179 } | 179 } |
| 180 } | 180 } |
| 181 } | 181 } |
| 182 | 182 |
| 183 __ LeaveInternalFrame(); | 183 __ LeaveInternalFrame(); |
| 184 | 184 |
| 185 // Now that the break point has been handled, resume normal execution by | 185 // Now that the break point has been handled, resume normal execution by |
| 186 // jumping to the target address intended by the caller and that was | 186 // jumping to the target address intended by the caller and that was |
| 187 // overwritten by the address of DebugBreakXXX. | 187 // overwritten by the address of DebugBreakXXX. |
| 188 __ mov(ip, Operand(ExternalReference(Debug_Address::AfterBreakTarget()))); | 188 ExternalReference after_break_target = |
| 189 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); |
| 190 __ mov(ip, Operand(after_break_target)); |
| 189 __ ldr(ip, MemOperand(ip)); | 191 __ ldr(ip, MemOperand(ip)); |
| 190 __ Jump(ip); | 192 __ Jump(ip); |
| 191 } | 193 } |
| 192 | 194 |
| 193 | 195 |
| 194 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { | 196 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { |
| 195 // Calling convention for IC load (from ic-arm.cc). | 197 // Calling convention for IC load (from ic-arm.cc). |
| 196 // ----------- S t a t e ------------- | 198 // ----------- S t a t e ------------- |
| 197 // -- r2 : name | 199 // -- r2 : name |
| 198 // -- lr : return address | 200 // -- lr : return address |
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| 306 | 308 |
| 307 #undef __ | 309 #undef __ |
| 308 | 310 |
| 309 | 311 |
| 310 | 312 |
| 311 #endif // ENABLE_DEBUGGER_SUPPORT | 313 #endif // ENABLE_DEBUGGER_SUPPORT |
| 312 | 314 |
| 313 } } // namespace v8::internal | 315 } } // namespace v8::internal |
| 314 | 316 |
| 315 #endif // V8_TARGET_ARCH_ARM | 317 #endif // V8_TARGET_ARCH_ARM |
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