1 /* |
1 /* |
2 * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
61 _failure_reason(NULL), |
61 _failure_reason(NULL), |
62 _failure_reason_on_C_heap(false) |
62 _failure_reason_on_C_heap(false) |
63 { |
63 { |
64 // Get Jvmti capabilities under lock to get consistent values. |
64 // Get Jvmti capabilities under lock to get consistent values. |
65 MutexLocker mu(JvmtiThreadState_lock); |
65 MutexLocker mu(JvmtiThreadState_lock); |
66 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
66 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint() ? 1 : 0; |
67 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
67 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables() ? 1 : 0; |
68 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
68 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions() ? 1 : 0; |
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69 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame() ? 1 : 0; |
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70 } |
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71 |
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72 bool JVMCIEnv::jvmti_state_changed() const { |
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73 if (!jvmti_can_access_local_variables() && |
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74 JvmtiExport::can_access_local_variables()) { |
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75 return true; |
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76 } |
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77 if (!jvmti_can_hotswap_or_post_breakpoint() && |
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78 JvmtiExport::can_hotswap_or_post_breakpoint()) { |
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79 return true; |
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80 } |
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81 if (!jvmti_can_post_on_exceptions() && |
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82 JvmtiExport::can_post_on_exceptions()) { |
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83 return true; |
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84 } |
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85 if (!jvmti_can_pop_frame() && |
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86 JvmtiExport::can_pop_frame()) { |
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87 return true; |
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88 } |
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89 return false; |
69 } |
90 } |
70 |
91 |
71 // ------------------------------------------------------------------ |
92 // ------------------------------------------------------------------ |
72 // Note: the logic of this method should mirror the logic of |
93 // Note: the logic of this method should mirror the logic of |
73 // constantPoolOopDesc::verify_constant_pool_resolve. |
94 // constantPoolOopDesc::verify_constant_pool_resolve. |
411 // Check for changes to the system dictionary during compilation |
432 // Check for changes to the system dictionary during compilation |
412 // class loads, evolution, breakpoints |
433 // class loads, evolution, breakpoints |
413 JVMCIEnv::CodeInstallResult JVMCIEnv::validate_compile_task_dependencies(Dependencies* dependencies, Handle compiled_code, |
434 JVMCIEnv::CodeInstallResult JVMCIEnv::validate_compile_task_dependencies(Dependencies* dependencies, Handle compiled_code, |
414 JVMCIEnv* env, char** failure_detail) { |
435 JVMCIEnv* env, char** failure_detail) { |
415 // If JVMTI capabilities were enabled during compile, the compilation is invalidated. |
436 // If JVMTI capabilities were enabled during compile, the compilation is invalidated. |
416 if (env != NULL) { |
437 if (env != NULL && env->jvmti_state_changed()) { |
417 if (!env->_jvmti_can_hotswap_or_post_breakpoint && JvmtiExport::can_hotswap_or_post_breakpoint()) { |
438 *failure_detail = (char*) "Jvmti state change during compilation invalidated dependencies"; |
418 *failure_detail = (char*) "Hotswapping or breakpointing was enabled during compilation"; |
439 return JVMCIEnv::dependencies_failed; |
419 return JVMCIEnv::dependencies_failed; |
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420 } |
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421 } |
440 } |
422 |
441 |
423 // Dependencies must be checked when the system dictionary changes |
442 // Dependencies must be checked when the system dictionary changes |
424 // or if we don't know whether it has changed (i.e., env == NULL). |
443 // or if we don't know whether it has changed (i.e., env == NULL). |
425 bool counter_changed = env == NULL || env->_system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); |
444 bool counter_changed = env == NULL || env->_system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); |