OLD | NEW |
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 |
(...skipping 1160 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1171 | 1171 |
1172 // Special handling of out of memory exceptions. | 1172 // Special handling of out of memory exceptions. |
1173 Failure* out_of_memory = Failure::OutOfMemoryException(); | 1173 Failure* out_of_memory = Failure::OutOfMemoryException(); |
1174 __ Branch(eq, throw_out_of_memory_exception, | 1174 __ Branch(eq, throw_out_of_memory_exception, |
1175 v0, Operand(reinterpret_cast<int32_t>(out_of_memory))); | 1175 v0, Operand(reinterpret_cast<int32_t>(out_of_memory))); |
1176 | 1176 |
1177 // Retrieve the pending exception and clear the variable. | 1177 // Retrieve the pending exception and clear the variable. |
1178 __ LoadExternalReference(t0, ExternalReference::the_hole_value_location()); | 1178 __ LoadExternalReference(t0, ExternalReference::the_hole_value_location()); |
1179 __ lw(a3, MemOperand(t0)); | 1179 __ lw(a3, MemOperand(t0)); |
1180 __ LoadExternalReference(t0, | 1180 __ LoadExternalReference(t0, |
1181 ExternalReference::pending_exception_address()); | 1181 ExternalReference(Top::k_pending_exception_address)); |
1182 __ lw(v0, MemOperand(t0)); | 1182 __ lw(v0, MemOperand(t0)); |
1183 __ sw(a3, MemOperand(t0)); | 1183 __ sw(a3, MemOperand(t0)); |
1184 | 1184 |
1185 // Special handling of termination exceptions which are uncatchable | 1185 // Special handling of termination exceptions which are uncatchable |
1186 // by javascript code. | 1186 // by javascript code. |
1187 __ Branch(eq, throw_termination_exception, | 1187 __ Branch(eq, throw_termination_exception, |
1188 v0, Operand(Factory::termination_exception())); | 1188 v0, Operand(Factory::termination_exception())); |
1189 | 1189 |
1190 // Handle normal exception. | 1190 // Handle normal exception. |
1191 __ b(throw_normal_exception); | 1191 __ b(throw_normal_exception); |
(...skipping 112 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1304 | 1304 |
1305 // Call a faked try-block that does the invoke. | 1305 // Call a faked try-block that does the invoke. |
1306 __ bal(&invoke); | 1306 __ bal(&invoke); |
1307 __ nop(); // Branch delay slot nop. | 1307 __ nop(); // Branch delay slot nop. |
1308 | 1308 |
1309 // Caught exception: Store result (exception) in the pending | 1309 // Caught exception: Store result (exception) in the pending |
1310 // exception field in the JSEnv and return a failure sentinel. | 1310 // exception field in the JSEnv and return a failure sentinel. |
1311 // Coming in here the fp will be invalid because the PushTryHandler below | 1311 // Coming in here the fp will be invalid because the PushTryHandler below |
1312 // sets it to 0 to signal the existence of the JSEntry frame. | 1312 // sets it to 0 to signal the existence of the JSEntry frame. |
1313 __ LoadExternalReference(t0, | 1313 __ LoadExternalReference(t0, |
1314 ExternalReference::pending_exception_address()); | 1314 ExternalReference(Top::k_pending_exception_address)); |
1315 __ sw(v0, MemOperand(t0)); // We come back from 'invoke'. result is in v0. | 1315 __ sw(v0, MemOperand(t0)); // We come back from 'invoke'. result is in v0. |
1316 __ li(v0, Operand(reinterpret_cast<int32_t>(Failure::Exception()))); | 1316 __ li(v0, Operand(reinterpret_cast<int32_t>(Failure::Exception()))); |
1317 __ b(&exit); | 1317 __ b(&exit); |
1318 __ nop(); // Branch delay slot nop. | 1318 __ nop(); // Branch delay slot nop. |
1319 | 1319 |
1320 // Invoke: Link this frame into the handler chain. | 1320 // Invoke: Link this frame into the handler chain. |
1321 __ bind(&invoke); | 1321 __ bind(&invoke); |
1322 __ PushTryHandler(IN_JS_ENTRY, JS_ENTRY_HANDLER); | 1322 __ PushTryHandler(IN_JS_ENTRY, JS_ENTRY_HANDLER); |
1323 // If an exception not caught by another handler occurs, this handler | 1323 // If an exception not caught by another handler occurs, this handler |
1324 // returns control to the code after the bal(&invoke) above, which | 1324 // returns control to the code after the bal(&invoke) above, which |
1325 // restores all kCalleeSaved registers (including cp and fp) to their | 1325 // restores all kCalleeSaved registers (including cp and fp) to their |
1326 // saved values before returning a failure to C. | 1326 // saved values before returning a failure to C. |
1327 | 1327 |
1328 // Clear any pending exceptions. | 1328 // Clear any pending exceptions. |
1329 __ LoadExternalReference(t0, ExternalReference::the_hole_value_location()); | 1329 __ LoadExternalReference(t0, ExternalReference::the_hole_value_location()); |
1330 __ lw(t1, MemOperand(t0)); | 1330 __ lw(t1, MemOperand(t0)); |
1331 __ LoadExternalReference(t0, | 1331 __ LoadExternalReference(t0, |
1332 ExternalReference::pending_exception_address()); | 1332 ExternalReference(Top::k_pending_exception_address)); |
1333 __ sw(t1, MemOperand(t0)); | 1333 __ sw(t1, MemOperand(t0)); |
1334 | 1334 |
1335 // Invoke the function by calling through JS entry trampoline builtin. | 1335 // Invoke the function by calling through JS entry trampoline builtin. |
1336 // Notice that we cannot store a reference to the trampoline code directly in | 1336 // Notice that we cannot store a reference to the trampoline code directly in |
1337 // this stub, because runtime stubs are not traversed when doing GC. | 1337 // this stub, because runtime stubs are not traversed when doing GC. |
1338 | 1338 |
1339 // Registers: | 1339 // Registers: |
1340 // a0: entry_address | 1340 // a0: entry_address |
1341 // a1: function | 1341 // a1: function |
1342 // a2: reveiver_pointer | 1342 // a2: reveiver_pointer |
(...skipping 85 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1428 ASSERT(static_cast<unsigned>(cc_) >> 28 < (1 << 15)); | 1428 ASSERT(static_cast<unsigned>(cc_) >> 28 < (1 << 15)); |
1429 return (static_cast<unsigned>(cc_) >> 27) | (strict_ ? 1 : 0); | 1429 return (static_cast<unsigned>(cc_) >> 27) | (strict_ ? 1 : 0); |
1430 } | 1430 } |
1431 | 1431 |
1432 | 1432 |
1433 #undef __ | 1433 #undef __ |
1434 | 1434 |
1435 } } // namespace v8::internal | 1435 } } // namespace v8::internal |
1436 | 1436 |
1437 #endif // V8_TARGET_ARCH_MIPS | 1437 #endif // V8_TARGET_ARCH_MIPS |
OLD | NEW |