Mercurial > hg > truffle

comparison src/share/vm/runtime/os.cpp @ 17474:6fa574bfd32a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge
author chegar
date Thu, 03 Oct 2013 19:13:12 +0100
parents 9b4ce069642e 179cd89fb279
children 89152779163c ecf3678d5736 f040cf9fc9c0
comparison
equal deleted inserted replaced
17473:9b4ce069642e 17474:6fa574bfd32a
312 } 312 }
313 } 313 }
314 } 314 }
315 } 315 }
316 316
317 void os::init_before_ergo() {
318 // We need to initialize large page support here because ergonomics takes some
319 // decisions depending on large page support and the calculated large page size.
320 large_page_init();
321 }
317 322
318 void os::signal_init() { 323 void os::signal_init() {
319 if (!ReduceSignalUsage) { 324 if (!ReduceSignalUsage) {
320 // Setup JavaThread for processing signals 325 // Setup JavaThread for processing signals
321 EXCEPTION_MARK; 326 EXCEPTION_MARK;
452 * executable if agent_lib->is_static_lib() == true or in the shared library 457 * executable if agent_lib->is_static_lib() == true or in the shared library
453 * referenced by 'handle'. 458 * referenced by 'handle'.
454 */ 459 */
455 void* os::find_agent_function(AgentLibrary *agent_lib, bool check_lib, 460 void* os::find_agent_function(AgentLibrary *agent_lib, bool check_lib,
456 const char *syms[], size_t syms_len) { 461 const char *syms[], size_t syms_len) {
462 assert(agent_lib != NULL, "sanity check");
457 const char *lib_name; 463 const char *lib_name;
458 void *handle = agent_lib->os_lib(); 464 void *handle = agent_lib->os_lib();
459 void *entryName = NULL; 465 void *entryName = NULL;
460 char *agent_function_name; 466 char *agent_function_name;
461 size_t i; 467 size_t i;
482 size_t syms_len) { 488 size_t syms_len) {
483 void *ret; 489 void *ret;
484 void *proc_handle; 490 void *proc_handle;
485 void *save_handle; 491 void *save_handle;
486 492
493 assert(agent_lib != NULL, "sanity check");
487 if (agent_lib->name() == NULL) { 494 if (agent_lib->name() == NULL) {
488 return false; 495 return false;
489 } 496 }
490 proc_handle = get_default_process_handle(); 497 proc_handle = get_default_process_handle();
491 // Check for Agent_OnLoad/Attach_lib_name function 498 // Check for Agent_OnLoad/Attach_lib_name function
492 save_handle = agent_lib->os_lib(); 499 save_handle = agent_lib->os_lib();
493 // We want to look in this process' symbol table. 500 // We want to look in this process' symbol table.
494 agent_lib->set_os_lib(proc_handle); 501 agent_lib->set_os_lib(proc_handle);
495 ret = find_agent_function(agent_lib, true, syms, syms_len); 502 ret = find_agent_function(agent_lib, true, syms, syms_len);
496 agent_lib->set_os_lib(save_handle);
497 if (ret != NULL) { 503 if (ret != NULL) {
498 // Found an entry point like Agent_OnLoad_lib_name so we have a static agent 504 // Found an entry point like Agent_OnLoad_lib_name so we have a static agent
499 agent_lib->set_os_lib(proc_handle);
500 agent_lib->set_valid(); 505 agent_lib->set_valid();
501 agent_lib->set_static_lib(true); 506 agent_lib->set_static_lib(true);
502 return true; 507 return true;
503 } 508 }
509 agent_lib->set_os_lib(save_handle);
504 return false; 510 return false;
505 } 511 }
506 512
507 // --------------------- heap allocation utilities --------------------- 513 // --------------------- heap allocation utilities ---------------------
508 514