3694 // Find a command line agent library and return its entry point for |
3694 // Find a command line agent library and return its entry point for |
3695 // -agentlib: -agentpath: -Xrun |
3695 // -agentlib: -agentpath: -Xrun |
3696 // num_symbol_entries must be passed-in since only the caller knows the number of symbols in the array. |
3696 // num_symbol_entries must be passed-in since only the caller knows the number of symbols in the array. |
3697 static OnLoadEntry_t lookup_on_load(AgentLibrary* agent, const char *on_load_symbols[], size_t num_symbol_entries) { |
3697 static OnLoadEntry_t lookup_on_load(AgentLibrary* agent, const char *on_load_symbols[], size_t num_symbol_entries) { |
3698 OnLoadEntry_t on_load_entry = NULL; |
3698 OnLoadEntry_t on_load_entry = NULL; |
3699 void *library = agent->os_lib(); // check if we have looked it up before |
3699 void *library = NULL; |
3700 |
3700 |
3701 if (library == NULL) { |
3701 if (!agent->valid()) { |
3702 char buffer[JVM_MAXPATHLEN]; |
3702 char buffer[JVM_MAXPATHLEN]; |
3703 char ebuf[1024]; |
3703 char ebuf[1024]; |
3704 const char *name = agent->name(); |
3704 const char *name = agent->name(); |
3705 const char *msg = "Could not find agent library "; |
3705 const char *msg = "Could not find agent library "; |
3706 |
3706 |
3707 if (agent->is_absolute_path()) { |
3707 // First check to see if agent is statcally linked into executable |
|
3708 if (os::find_builtin_agent(agent, on_load_symbols, num_symbol_entries)) { |
|
3709 library = agent->os_lib(); |
|
3710 } else if (agent->is_absolute_path()) { |
3708 library = os::dll_load(name, ebuf, sizeof ebuf); |
3711 library = os::dll_load(name, ebuf, sizeof ebuf); |
3709 if (library == NULL) { |
3712 if (library == NULL) { |
3710 const char *sub_msg = " in absolute path, with error: "; |
3713 const char *sub_msg = " in absolute path, with error: "; |
3711 size_t len = strlen(msg) + strlen(name) + strlen(sub_msg) + strlen(ebuf) + 1; |
3714 size_t len = strlen(msg) + strlen(name) + strlen(sub_msg) + strlen(ebuf) + 1; |
3712 char *buf = NEW_C_HEAP_ARRAY(char, len, mtThread); |
3715 char *buf = NEW_C_HEAP_ARRAY(char, len, mtThread); |
3736 FREE_C_HEAP_ARRAY(char, buf, mtThread); |
3739 FREE_C_HEAP_ARRAY(char, buf, mtThread); |
3737 } |
3740 } |
3738 } |
3741 } |
3739 } |
3742 } |
3740 agent->set_os_lib(library); |
3743 agent->set_os_lib(library); |
|
3744 agent->set_valid(); |
3741 } |
3745 } |
3742 |
3746 |
3743 // Find the OnLoad function. |
3747 // Find the OnLoad function. |
3744 for (size_t symbol_index = 0; symbol_index < num_symbol_entries; symbol_index++) { |
3748 on_load_entry = |
3745 on_load_entry = CAST_TO_FN_PTR(OnLoadEntry_t, os::dll_lookup(library, on_load_symbols[symbol_index])); |
3749 CAST_TO_FN_PTR(OnLoadEntry_t, os::find_agent_function(agent, |
3746 if (on_load_entry != NULL) break; |
3750 false, |
3747 } |
3751 on_load_symbols, |
|
3752 num_symbol_entries)); |
3748 return on_load_entry; |
3753 return on_load_entry; |
3749 } |
3754 } |
3750 |
3755 |
3751 // Find the JVM_OnLoad entry point |
3756 // Find the JVM_OnLoad entry point |
3752 static OnLoadEntry_t lookup_jvm_on_load(AgentLibrary* agent) { |
3757 static OnLoadEntry_t lookup_jvm_on_load(AgentLibrary* agent) { |
3817 } |
3822 } |
3818 |
3823 |
3819 void Threads::shutdown_vm_agents() { |
3824 void Threads::shutdown_vm_agents() { |
3820 // Send any Agent_OnUnload notifications |
3825 // Send any Agent_OnUnload notifications |
3821 const char *on_unload_symbols[] = AGENT_ONUNLOAD_SYMBOLS; |
3826 const char *on_unload_symbols[] = AGENT_ONUNLOAD_SYMBOLS; |
|
3827 size_t num_symbol_entries = ARRAY_SIZE(on_unload_symbols); |
3822 extern struct JavaVM_ main_vm; |
3828 extern struct JavaVM_ main_vm; |
3823 for (AgentLibrary* agent = Arguments::agents(); agent != NULL; agent = agent->next()) { |
3829 for (AgentLibrary* agent = Arguments::agents(); agent != NULL; agent = agent->next()) { |
3824 |
3830 |
3825 // Find the Agent_OnUnload function. |
3831 // Find the Agent_OnUnload function. |
3826 for (uint symbol_index = 0; symbol_index < ARRAY_SIZE(on_unload_symbols); symbol_index++) { |
3832 Agent_OnUnload_t unload_entry = CAST_TO_FN_PTR(Agent_OnUnload_t, |
3827 Agent_OnUnload_t unload_entry = CAST_TO_FN_PTR(Agent_OnUnload_t, |
3833 os::find_agent_function(agent, |
3828 os::dll_lookup(agent->os_lib(), on_unload_symbols[symbol_index])); |
3834 false, |
3829 |
3835 on_unload_symbols, |
3830 // Invoke the Agent_OnUnload function |
3836 num_symbol_entries)); |
3831 if (unload_entry != NULL) { |
3837 |
3832 JavaThread* thread = JavaThread::current(); |
3838 // Invoke the Agent_OnUnload function |
3833 ThreadToNativeFromVM ttn(thread); |
3839 if (unload_entry != NULL) { |
3834 HandleMark hm(thread); |
3840 JavaThread* thread = JavaThread::current(); |
3835 (*unload_entry)(&main_vm); |
3841 ThreadToNativeFromVM ttn(thread); |
3836 break; |
3842 HandleMark hm(thread); |
3837 } |
3843 (*unload_entry)(&main_vm); |
3838 } |
3844 } |
3839 } |
3845 } |
3840 } |
3846 } |
3841 |
3847 |
3842 // Called for after the VM is initialized for -Xrun libraries which have not been converted to agent libraries |
3848 // Called for after the VM is initialized for -Xrun libraries which have not been converted to agent libraries |