Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/mips/vm/runtime_mips_64.cpp
src/cpu/mips/vm/runtime_mips_64.cpp
- changeset 9228
- 617b86d17edb
- parent 9171
- c67c94f5b85d
- child 9251
- 1ccc5a3b3671
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| 9227:f1560009a081 | 9228:617b86d17edb |
|---|---|
| 63 // A1: exception pc in caller or ??? | 63 // A1: exception pc in caller or ??? |
| 64 // jumps to: exception handler of caller | 64 // jumps to: exception handler of caller |
| 65 // | 65 // |
| 66 // Note: the exception pc MUST be at a call (precise debug information) | 66 // Note: the exception pc MUST be at a call (precise debug information) |
| 67 // | 67 // |
| 68 // 2012/9/14 Jin: [stubGenerator_mips.cpp] generate_forward_exception() | 68 // [stubGenerator_mips.cpp] generate_forward_exception() |
| 69 // |- V0, V1 are created | 69 // |- V0, V1 are created |
| 70 // |- T9 <= SharedRuntime::exception_handler_for_return_address | 70 // |- T9 <= SharedRuntime::exception_handler_for_return_address |
| 71 // `- jr T9 | 71 // `- jr T9 |
| 72 // `- the caller's exception_handler | 72 // `- the caller's exception_handler |
| 73 // `- jr OptoRuntime::exception_blob | 73 // `- jr OptoRuntime::exception_blob |
| 74 // `- here | 74 // `- here |
| 75 // | 75 // |
| 76 void OptoRuntime::generate_exception_blob() { | 76 void OptoRuntime::generate_exception_blob() { |
| 77 // Capture info about frame layout | 77 // Capture info about frame layout |
| 78 enum layout { | 78 enum layout { |
| 79 fp_off, | 79 fp_off, |
| 90 | 90 |
| 91 address start = __ pc(); | 91 address start = __ pc(); |
| 92 | 92 |
| 93 __ daddiu(SP, SP, -1 * framesize * wordSize); // Prolog! | 93 __ daddiu(SP, SP, -1 * framesize * wordSize); // Prolog! |
| 94 | 94 |
| 95 /* 2012/9.27 Jin: this frame will be treated as the original caller method. | 95 // this frame will be treated as the original caller method. |
| 96 * So, the return pc should be filled with the original exception pc. | 96 // So, the return pc should be filled with the original exception pc. |
| 97 * ref: X86's implementation | 97 // ref: X86's implementation |
| 98 */ | |
| 99 __ sd(V1, SP, return_off *wordSize); // return address | 98 __ sd(V1, SP, return_off *wordSize); // return address |
| 100 __ sd(FP, SP, fp_off *wordSize); // EBP | 99 __ sd(FP, SP, fp_off *wordSize); // EBP |
| 101 | 100 |
| 102 // Save callee saved registers. None for UseSSE=0, | 101 // Save callee saved registers. None for UseSSE=0, |
| 103 // floats-only for UseSSE=1, and doubles for UseSSE=2. | 102 // floats-only for UseSSE=1, and doubles for UseSSE=2. |
| 170 __ sd(R0, Address(thread, JavaThread::exception_pc_offset())); | 169 __ sd(R0, Address(thread, JavaThread::exception_pc_offset())); |
| 171 #endif | 170 #endif |
| 172 // Clear the exception oop so GC no longer processes it as a root. | 171 // Clear the exception oop so GC no longer processes it as a root. |
| 173 __ sd(R0, Address(thread, JavaThread::exception_oop_offset())); | 172 __ sd(R0, Address(thread, JavaThread::exception_oop_offset())); |
| 174 | 173 |
| 175 /* 2014/5/12 Jin: Fix seg fault when running: | 174 // Fix seg fault when running: |
| 176 * Eclipse + Plugin + Debug As | 175 // Eclipse + Plugin + Debug As |
| 177 * This is the only condition where C2 calls SharedRuntime::generate_deopt_blob() | 176 // This is the only condition where C2 calls SharedRuntime::generate_deopt_blob() |
| 178 * | 177 // |
| 179 * Ref: http://10.2.5.21:8000/projects/java/wiki/Jgj-log-2014-5-12_ | 178 // Ref: http://10.2.5.21:8000/projects/java/wiki/Jgj-log-2014-5-12_ |
| 180 */ | 179 // |
| 181 __ move(V0, A0); | 180 __ move(V0, A0); |
| 182 __ move(V1, A1); | 181 __ move(V1, A1); |
| 183 | 182 |
| 184 // rax,: exception oop | 183 // rax,: exception oop |
| 185 // rcx: exception handler | 184 // rcx: exception handler |
