Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/utilities/debug.cpp
src/share/vm/utilities/debug.cpp
- changeset 7553
- f43fad8786fc
- parent 7300
- 03e6d34be1f5
- child 7994
- 04ff2f6cd0eb
- child 8209
- 8641949eb21f
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replaced
| 7552:0ef505d06e12 | 7553:f43fad8786fc |
|---|---|
| 664 tty->print_cr(" ps() - print current thread stack"); | 664 tty->print_cr(" ps() - print current thread stack"); |
| 665 tty->print_cr(" pss() - print all thread stacks"); | 665 tty->print_cr(" pss() - print all thread stacks"); |
| 666 tty->print_cr(" pm(int pc) - print Method* given compiled PC"); | 666 tty->print_cr(" pm(int pc) - print Method* given compiled PC"); |
| 667 tty->print_cr(" findm(intptr_t pc) - finds Method*"); | 667 tty->print_cr(" findm(intptr_t pc) - finds Method*"); |
| 668 tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it"); | 668 tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it"); |
| 669 tty->print_cr(" pns(void* sp, void* fp, void* pc) - print native (i.e. mixed) stack trace. E.g."); | |
| 670 tty->print_cr(" pns($sp, $rbp, $pc) on Linux/amd64 and Solaris/amd64 or"); | |
| 671 tty->print_cr(" pns($sp, $ebp, $pc) on Linux/x86 or"); | |
| 672 tty->print_cr(" pns($sp, 0, $pc) on Linux/ppc64 or"); | |
| 673 tty->print_cr(" pns($sp + 0x7ff, 0, $pc) on Solaris/SPARC"); | |
| 674 tty->print_cr(" - in gdb do 'set overload-resolution off' before calling pns()"); | |
| 675 tty->print_cr(" - in dbx do 'frame 1' before calling pns()"); | |
| 669 | 676 |
| 670 tty->print_cr("misc."); | 677 tty->print_cr("misc."); |
| 671 tty->print_cr(" flush() - flushes the log file"); | 678 tty->print_cr(" flush() - flushes the log file"); |
| 672 tty->print_cr(" events() - dump events from ring buffers"); | 679 tty->print_cr(" events() - dump events from ring buffers"); |
| 673 | 680 |
| 676 tty->print_cr(" debug() - to set things up for compiler debugging"); | 683 tty->print_cr(" debug() - to set things up for compiler debugging"); |
| 677 tty->print_cr(" ndebug() - undo debug"); | 684 tty->print_cr(" ndebug() - undo debug"); |
| 678 } | 685 } |
| 679 | 686 |
| 680 #endif // !PRODUCT | 687 #endif // !PRODUCT |
| 688 | |
| 689 void print_native_stack(outputStream* st, frame fr, Thread* t, char* buf, int buf_size) { | |
| 690 | |
| 691 // see if it's a valid frame | |
| 692 if (fr.pc()) { | |
| 693 st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)"); | |
| 694 | |
| 695 int count = 0; | |
| 696 while (count++ < StackPrintLimit) { | |
| 697 fr.print_on_error(st, buf, buf_size); | |
| 698 st->cr(); | |
| 699 // Compiled code may use EBP register on x86 so it looks like | |
| 700 // non-walkable C frame. Use frame.sender() for java frames. | |
| 701 if (t && t->is_Java_thread()) { | |
| 702 // Catch very first native frame by using stack address. | |
| 703 // For JavaThread stack_base and stack_size should be set. | |
| 704 if (!t->on_local_stack((address)(fr.real_fp() + 1))) { | |
| 705 break; | |
| 706 } | |
| 707 if (fr.is_java_frame() || fr.is_native_frame() || fr.is_runtime_frame()) { | |
| 708 RegisterMap map((JavaThread*)t, false); // No update | |
| 709 fr = fr.sender(&map); | |
| 710 } else { | |
| 711 fr = os::get_sender_for_C_frame(&fr); | |
| 712 } | |
| 713 } else { | |
| 714 // is_first_C_frame() does only simple checks for frame pointer, | |
| 715 // it will pass if java compiled code has a pointer in EBP. | |
| 716 if (os::is_first_C_frame(&fr)) break; | |
| 717 fr = os::get_sender_for_C_frame(&fr); | |
| 718 } | |
| 719 } | |
| 720 | |
| 721 if (count > StackPrintLimit) { | |
| 722 st->print_cr("...<more frames>..."); | |
| 723 } | |
| 724 | |
| 725 st->cr(); | |
| 726 } | |
| 727 } | |
| 728 | |
| 729 #ifndef PRODUCT | |
| 730 | |
| 731 extern "C" void pns(void* sp, void* fp, void* pc) { // print native stack | |
| 732 Command c("pns"); | |
| 733 static char buf[O_BUFLEN]; | |
| 734 Thread* t = ThreadLocalStorage::get_thread_slow(); | |
| 735 // Call generic frame constructor (certain arguments may be ignored) | |
| 736 frame fr(sp, fp, pc); | |
| 737 print_native_stack(tty, fr, t, buf, sizeof(buf)); | |
| 738 } | |
| 739 | |
| 740 #endif // !PRODUCT |
