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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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1676 // address. It expects to find the address just after the svc instruction. | 1676 // address. It expects to find the address just after the svc instruction. |
1677 BlockConstPoolScope block_const_pool(this); | 1677 BlockConstPoolScope block_const_pool(this); |
1678 if (code >= 0) { | 1678 if (code >= 0) { |
1679 svc(kStopCode + code, cond); | 1679 svc(kStopCode + code, cond); |
1680 } else { | 1680 } else { |
1681 svc(kStopCode + kMaxStopCode, cond); | 1681 svc(kStopCode + kMaxStopCode, cond); |
1682 } | 1682 } |
1683 emit(reinterpret_cast<Instr>(msg)); | 1683 emit(reinterpret_cast<Instr>(msg)); |
1684 } | 1684 } |
1685 #else // def __arm__ | 1685 #else // def __arm__ |
1686 #ifdef CAN_USE_ARMV5_INSTRUCTIONS | |
1687 if (cond != al) { | 1686 if (cond != al) { |
1688 Label skip; | 1687 Label skip; |
1689 b(&skip, NegateCondition(cond)); | 1688 b(&skip, NegateCondition(cond)); |
1690 bkpt(0); | 1689 bkpt(0); |
1691 bind(&skip); | 1690 bind(&skip); |
1692 } else { | 1691 } else { |
1693 bkpt(0); | 1692 bkpt(0); |
1694 } | 1693 } |
1695 #else // ndef CAN_USE_ARMV5_INSTRUCTIONS | |
1696 svc(0x9f0001, cond); | |
1697 #endif // ndef CAN_USE_ARMV5_INSTRUCTIONS | |
1698 #endif // def __arm__ | 1694 #endif // def __arm__ |
1699 } | 1695 } |
1700 | 1696 |
1701 | 1697 |
1702 void Assembler::bkpt(uint32_t imm16) { // v5 and above | 1698 void Assembler::bkpt(uint32_t imm16) { // v5 and above |
1703 ASSERT(is_uint16(imm16)); | 1699 ASSERT(is_uint16(imm16)); |
1704 emit(al | B24 | B21 | (imm16 >> 4)*B8 | BKPT | (imm16 & 0xf)); | 1700 emit(al | B24 | B21 | (imm16 >> 4)*B8 | BKPT | (imm16 & 0xf)); |
1705 } | 1701 } |
1706 | 1702 |
1707 | 1703 |
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3083 | 3079 |
3084 // Since a constant pool was just emitted, move the check offset forward by | 3080 // Since a constant pool was just emitted, move the check offset forward by |
3085 // the standard interval. | 3081 // the standard interval. |
3086 next_buffer_check_ = pc_offset() + kCheckPoolInterval; | 3082 next_buffer_check_ = pc_offset() + kCheckPoolInterval; |
3087 } | 3083 } |
3088 | 3084 |
3089 | 3085 |
3090 } } // namespace v8::internal | 3086 } } // namespace v8::internal |
3091 | 3087 |
3092 #endif // V8_TARGET_ARCH_ARM | 3088 #endif // V8_TARGET_ARCH_ARM |
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