Tue, 27 Nov 2012 14:20:21 +0100
8003935: Simplify the needed includes for using Thread::current()
Reviewed-by: dholmes, rbackman, coleenp
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25 #include "precompiled.hpp"
26 #include "runtime/frame.inline.hpp"
27 #include "runtime/thread.inline.hpp"
29 // For Forte Analyzer AsyncGetCallTrace profiling support - thread is
30 // currently interrupted by SIGPROF
31 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
32 void* ucontext, bool isInJava) {
34 assert(Thread::current() == this, "caller must be current thread");
35 assert(this->is_Java_thread(), "must be JavaThread");
36 JavaThread* jt = (JavaThread *)this;
38 // last_Java_frame is always walkable and safe use it if we have it
40 if (jt->has_last_Java_frame()) {
41 *fr_addr = jt->pd_last_frame();
42 return true;
43 }
45 ucontext_t* uc = (ucontext_t*) ucontext;
47 // We always want to use the initial frame we create from the ucontext as
48 // it certainly signals where we currently are. However that frame may not
49 // be safe for calling sender. In that case if we have a last_Java_frame
50 // then the forte walker will switch to that frame as the virtual sender
51 // for the frame we create here which is not sender safe.
53 intptr_t* ret_fp;
54 intptr_t* ret_sp;
55 ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc, &ret_sp, &ret_fp);
57 // Something would really have to be screwed up to get a NULL pc
59 if (addr.pc() == NULL ) {
60 assert(false, "NULL pc from signal handler!");
61 return false;
63 }
65 // If sp and fp are nonsense just leave them out
67 if ((address)ret_sp >= jt->stack_base() ||
68 (address)ret_sp < jt->stack_base() - jt->stack_size() ) {
70 ret_sp = NULL;
71 ret_fp = NULL;
72 } else {
74 // sp is reasonable is fp reasonable?
75 if ( (address)ret_fp >= jt->stack_base() || ret_fp < ret_sp) {
76 ret_fp = NULL;
77 }
78 }
80 frame ret_frame(ret_sp, ret_fp, addr.pc());
82 *fr_addr = ret_frame;
83 return true;
85 }
87 void JavaThread::cache_global_variables() { }