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diff --git a/src/share/vm/classfile/classFileParser.cpp b/src/share/vm/classfile/classFileParser.cpp
index fa7986b..0910a7d 100644
--- a/src/share/vm/classfile/classFileParser.cpp
+++ b/src/share/vm/classfile/classFileParser.cpp
@@ -4264,6 +4264,30 @@
}
}
+ if (this_klass->external_name() != NULL && HotswapDeoptClassPath != NULL) {
+ const char* deopt_path = HotswapDeoptClassPath;
+ const char* const end = deopt_path + strlen(deopt_path);
+ bool deopt_found = false;
+ while (!deopt_found && deopt_path < end) {
+ const char* tmp_end = strchr(deopt_path, ',');
+ if (tmp_end == NULL) {
+ tmp_end = end;
+ }
+ char* deopt_segm_path = NEW_C_HEAP_ARRAY(char, tmp_end - deopt_path + 1, mtInternal);
+ memcpy(deopt_segm_path, deopt_path, tmp_end - deopt_path);
+ deopt_segm_path[tmp_end - deopt_path] = '\0';
+ if (strstr(this_klass->external_name(), deopt_segm_path) != NULL) {
+ if (TraceRedefineClasses > 0) {
+ tty->print_cr("Including in deoptimization : %s", this_klass->external_name());
+ }
+ this_klass->set_deoptimization_incl(true);
+ deopt_found = true;
+ }
+ FREE_C_HEAP_ARRAY(char, deopt_segm_path, mtInternal);
+ deopt_path = tmp_end + 1;
+ }
+ }
+
if (TraceClassResolution) {
ResourceMark rm;
// print out the superclass.
diff --git a/src/share/vm/classfile/systemDictionary.cpp b/src/share/vm/classfile/systemDictionary.cpp
index e40b061..588e0e5 100644
--- a/src/share/vm/classfile/systemDictionary.cpp
+++ b/src/share/vm/classfile/systemDictionary.cpp
@@ -1255,6 +1255,31 @@
ik->restore_unshareable_info(loader_data, protection_domain, CHECK_(nh));
}
+ if (HotswapDeoptClassPath != NULL) {
+ const char* deopt_path = HotswapDeoptClassPath;
+ const char* const end = deopt_path + strlen(deopt_path);
+ bool deopt_found = false;
+ while (!deopt_found && deopt_path < end) {
+ const char* tmp_end = strchr(deopt_path, ',');
+ if (tmp_end == NULL) {
+ tmp_end = end;
+ }
+ char* deopt_segm_path = NEW_C_HEAP_ARRAY(char, tmp_end - deopt_path + 1, mtInternal);
+ memcpy(deopt_segm_path, deopt_path, tmp_end - deopt_path);
+ deopt_segm_path[tmp_end - deopt_path] = '\0';
+ if (strstr(ik->external_name(), deopt_segm_path) != NULL) {
+ if (TraceRedefineClasses > 0) {
+ tty->print_cr("Including in deoptimization : %s", ik->external_name());
+ }
+ ik->set_deoptimization_incl(true);
+ deopt_found = true;
+ }
+ FREE_C_HEAP_ARRAY(char, deopt_segm_path, mtInternal);
+ deopt_path = tmp_end + 1;
+ }
+ }
+
+
if (TraceClassLoading) {
ResourceMark rm;
tty->print("[Loaded %s", ik->external_name());
diff --git a/src/share/vm/code/codeCache.cpp b/src/share/vm/code/codeCache.cpp
index c9059d7..af10381 100644
--- a/src/share/vm/code/codeCache.cpp
+++ b/src/share/vm/code/codeCache.cpp
@@ -709,6 +709,13 @@
}
#endif // HOTSWAP
+// Deoptimize all methods having deopt-include flag
+void CodeCache::mark_all_incl_nmethods_for_deoptimization() {
+ MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
+ FOR_ALL_ALIVE_NMETHODS(nm) {
+ nm->mark_for_deoptimization_incl();
+ }
+}
// Deoptimize all methods
void CodeCache::mark_all_nmethods_for_deoptimization() {
diff --git a/src/share/vm/code/codeCache.hpp b/src/share/vm/code/codeCache.hpp
index f098284..d4a1363 100644
--- a/src/share/vm/code/codeCache.hpp
+++ b/src/share/vm/code/codeCache.hpp
@@ -184,6 +184,7 @@
// tells how many nmethods have dependencies
static int number_of_nmethods_with_dependencies();
+ static void mark_all_incl_nmethods_for_deoptimization();
static int get_codemem_full_count() { return _codemem_full_count; }
};
diff --git a/src/share/vm/code/nmethod.cpp b/src/share/vm/code/nmethod.cpp
index 6ea39ae..bf2db7e 100644
--- a/src/share/vm/code/nmethod.cpp
+++ b/src/share/vm/code/nmethod.cpp
@@ -476,6 +476,7 @@
_lazy_critical_native = 0;
_has_wide_vectors = 0;
_marked_for_deoptimization = 0;
+ _deoptimization_incl = false;
_lock_count = 0;
_stack_traversal_mark = 0;
_unload_reported = false; // jvmti state
@@ -688,6 +689,7 @@
_dependencies_offset = _scopes_pcs_offset;
_handler_table_offset = _dependencies_offset;
_nul_chk_table_offset = _handler_table_offset;
+
_nmethod_end_offset = _nul_chk_table_offset;
_compile_id = compile_id;
_comp_level = CompLevel_none;
@@ -697,6 +699,8 @@
_exception_cache = NULL;
_pc_desc_cache.reset_to(NULL);
_hotness_counter = NMethodSweeper::hotness_counter_reset_val();
+ if (method != NULL)
+ _deoptimization_incl = method->method_holder()->is_deoptimization_incl();
code_buffer->copy_values_to(this);
if (ScavengeRootsInCode) {
@@ -772,6 +776,7 @@
_metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize);
_scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize);
_scopes_pcs_offset = _scopes_data_offset;
+
_dependencies_offset = _scopes_pcs_offset;
_handler_table_offset = _dependencies_offset;
_nul_chk_table_offset = _handler_table_offset;
@@ -784,6 +789,8 @@
_exception_cache = NULL;
_pc_desc_cache.reset_to(NULL);
_hotness_counter = NMethodSweeper::hotness_counter_reset_val();
+ if (method != NULL)
+ _deoptimization_incl = method->method_holder()->is_deoptimization_incl();
code_buffer->copy_values_to(this);
if (ScavengeRootsInCode) {
@@ -900,6 +907,9 @@
_exception_cache = NULL;
_pc_desc_cache.reset_to(scopes_pcs_begin());
+ if (method != NULL)
+ _deoptimization_incl = method->method_holder()->is_deoptimization_incl();
+
// Copy contents of ScopeDescRecorder to nmethod
code_buffer->copy_values_to(this);
debug_info->copy_to(this);
diff --git a/src/share/vm/code/nmethod.hpp b/src/share/vm/code/nmethod.hpp
index b7d6890..3de4757 100644
--- a/src/share/vm/code/nmethod.hpp
+++ b/src/share/vm/code/nmethod.hpp
@@ -184,6 +184,8 @@
bool _marked_for_reclamation; // Used by NMethodSweeper (set only by sweeper)
bool _marked_for_deoptimization; // Used for stack deoptimization
+ bool _deoptimization_incl;
+
// used by jvmti to track if an unload event has been posted for this nmethod.
bool _unload_reported;
@@ -470,6 +472,11 @@
bool is_marked_for_deoptimization() const { return _marked_for_deoptimization; }
void mark_for_deoptimization() { _marked_for_deoptimization = true; }
+ bool is_deoptimization_incl() const { return _deoptimization_incl; }
+ void set_deoptimization_incl(bool z) { _deoptimization_incl = z; }
+
+ void mark_for_deoptimization_incl() { if (_deoptimization_incl) _marked_for_deoptimization = true; }
+
void make_unloaded(BoolObjectClosure* is_alive, oop cause);
bool has_dependencies() { return dependencies_size() != 0; }
diff --git a/src/share/vm/oops/klass.cpp b/src/share/vm/oops/klass.cpp
index 2e3d192..a889458 100644
--- a/src/share/vm/oops/klass.cpp
+++ b/src/share/vm/oops/klass.cpp
@@ -188,6 +188,7 @@
set_redefinition_flags(Klass::NoRedefinition);
set_redefining(false);
+ set_deoptimization_incl(false);
set_new_version(NULL);
set_old_version(NULL);
set_redefinition_index(-1);
@@ -236,6 +237,8 @@
if (FastSuperclassLimit == 0) {
// None of the other machinery matters.
set_super(k);
+ if (k != NULL && k->is_deoptimization_incl())
+ set_deoptimization_incl(true);
return;
}
if (k == NULL) {
@@ -247,6 +250,8 @@
"initialize this only once to a non-trivial value");
set_super(k);
Klass* sup = k;
+ if (sup->is_deoptimization_incl())
+ set_deoptimization_incl(true);
int sup_depth = sup->super_depth();
juint my_depth = MIN2(sup_depth + 1, (int)primary_super_limit());
if (!can_be_primary_super_slow())
diff --git a/src/share/vm/oops/klass.hpp b/src/share/vm/oops/klass.hpp
index e3fc3bd..c5fc46d 100644
--- a/src/share/vm/oops/klass.hpp
+++ b/src/share/vm/oops/klass.hpp
@@ -177,6 +177,7 @@
bool _original_field_offsets_changed; // Did the original field offsets of this class change during class redefinition?
int * _update_information; // Update information
bool _is_redefining;
+ bool _deoptimization_incl; // True if class methods are included in deoptimization
// Biased locking implementation and statistics
// (the 64-bit chunk goes first, to avoid some fragmentation)
@@ -263,6 +264,9 @@
int *update_information() const { return _update_information; }
void set_update_information(int *info) { _update_information = info; }
+ bool is_deoptimization_incl() const { return _deoptimization_incl; }
+ void set_deoptimization_incl(bool z) { _deoptimization_incl = z; }
+
// Revision number for redefined classes, -1 for originally loaded classes
bool was_redefined() const { return _revision_number != -1; }
jint revision_number() const { return _revision_number; }
diff --git a/src/share/vm/prims/jvmtiRedefineClasses2.cpp b/src/share/vm/prims/jvmtiRedefineClasses2.cpp
index f545b98..4fad1cb 100644
--- a/src/share/vm/prims/jvmtiRedefineClasses2.cpp
+++ b/src/share/vm/prims/jvmtiRedefineClasses2.cpp
@@ -443,6 +443,8 @@
new_class->set_redefinition_flags(redefinition_flags);
+ new_class->set_deoptimization_incl(true);
+
_max_redefinition_flags = _max_redefinition_flags | redefinition_flags;
if ((redefinition_flags & Klass::ModifyInstances) != 0) {
@@ -1572,7 +1574,10 @@
if (0 && JvmtiExport::all_dependencies_are_recorded()) {
Universe::flush_evol_dependents_on(k_h);
} else {
- CodeCache::mark_all_nmethods_for_deoptimization();
+ if (HotswapDeoptClassPath == NULL)
+ CodeCache::mark_all_nmethods_for_deoptimization();
+ else
+ CodeCache::mark_all_incl_nmethods_for_deoptimization();
ResourceMark rm(THREAD);
DeoptimizationMarker dm;
diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp
index 9a51218..b8ca7bb 100644
--- a/src/share/vm/runtime/globals.hpp
+++ b/src/share/vm/runtime/globals.hpp
@@ -3962,7 +3962,16 @@
\
product_pd(bool, PreserveFramePointer, \
"Use the FP register for holding the frame pointer " \
- "and not as a general purpose register.")
+ "and not as a general purpose register.") \
+ \
+ product(ccstr, HotswapDeoptClassPath, NULL, \
+ "Comma separated list of packages containing classes that are " \
+ "expected to be redefined. If com.sun.proxy is used by " \
+ "application and proxied class is redefined, then this option " \
+ "should contain 'com.sun.proxy'. If the option is not defined, " \
+ "then all classes will be deoptimized on hotswap. Using this " \
+ "option improves hotswap performance. ")
+
/*
* Macros for factoring of globals
|
