src/os/bsd/vm/os_bsd.cpp

rev 4979 : 8020775: PPC64 (part 12): posix signal printing
Summary: Implement methods printing posix signal information and call them in unix os files.

*** 1616,1677 ****
    st->print("\n/proc/meminfo:\n");
    _print_ascii_file("/proc/meminfo", st);
    st->cr();
  }
  
- // Taken from /usr/include/bits/siginfo.h  Supposed to be architecture specific
- // but they're the same for all the bsd arch that we support
- // and they're the same for solaris but there's no common place to put this.
- const char *ill_names[] = { "ILL0", "ILL_ILLOPC", "ILL_ILLOPN", "ILL_ILLADR",
-                           "ILL_ILLTRP", "ILL_PRVOPC", "ILL_PRVREG",
-                           "ILL_COPROC", "ILL_BADSTK" };
- 
- const char *fpe_names[] = { "FPE0", "FPE_INTDIV", "FPE_INTOVF", "FPE_FLTDIV",
-                           "FPE_FLTOVF", "FPE_FLTUND", "FPE_FLTRES",
-                           "FPE_FLTINV", "FPE_FLTSUB", "FPE_FLTDEN" };
- 
- const char *segv_names[] = { "SEGV0", "SEGV_MAPERR", "SEGV_ACCERR" };
- 
- const char *bus_names[] = { "BUS0", "BUS_ADRALN", "BUS_ADRERR", "BUS_OBJERR" };
- 
  void os::print_siginfo(outputStream* st, void* siginfo) {
!   st->print("siginfo:");
  
!   const int buflen = 100;
!   char buf[buflen];
!   siginfo_t *si = (siginfo_t*)siginfo;
!   st->print("si_signo=%s: ", os::exception_name(si->si_signo, buf, buflen));
!   if (si->si_errno != 0 && strerror_r(si->si_errno, buf, buflen) == 0) {
!     st->print("si_errno=%s", buf);
!   } else {
!     st->print("si_errno=%d", si->si_errno);
!   }
!   const int c = si->si_code;
!   assert(c > 0, "unexpected si_code");
!   switch (si->si_signo) {
!   case SIGILL:
!     st->print(", si_code=%d (%s)", c, c > 8 ? "" : ill_names[c]);
!     st->print(", si_addr=" PTR_FORMAT, si->si_addr);
!     break;
!   case SIGFPE:
!     st->print(", si_code=%d (%s)", c, c > 9 ? "" : fpe_names[c]);
!     st->print(", si_addr=" PTR_FORMAT, si->si_addr);
!     break;
!   case SIGSEGV:
!     st->print(", si_code=%d (%s)", c, c > 2 ? "" : segv_names[c]);
!     st->print(", si_addr=" PTR_FORMAT, si->si_addr);
!     break;
!   case SIGBUS:
!     st->print(", si_code=%d (%s)", c, c > 3 ? "" : bus_names[c]);
!     st->print(", si_addr=" PTR_FORMAT, si->si_addr);
!     break;
!   default:
!     st->print(", si_code=%d", si->si_code);
!     // no si_addr
!   }
  
!   if ((si->si_signo == SIGBUS || si->si_signo == SIGSEGV) &&
        UseSharedSpaces) {
      FileMapInfo* mapinfo = FileMapInfo::current_info();
      if (mapinfo->is_in_shared_space(si->si_addr)) {
        st->print("\n\nError accessing class data sharing archive."   \
                  " Mapped file inaccessible during execution, "      \
--- 1616,1631 ----
    st->print("\n/proc/meminfo:\n");
    _print_ascii_file("/proc/meminfo", st);
    st->cr();
  }
  
  void os::print_siginfo(outputStream* st, void* siginfo) {
!   const siginfo_t* si = (const siginfo_t*)siginfo;
  
!   os::Posix::print_siginfo_brief(st, si);
  
!   if (si && (si->si_signo == SIGBUS || si->si_signo == SIGSEGV) &&
        UseSharedSpaces) {
      FileMapInfo* mapinfo = FileMapInfo::current_info();
      if (mapinfo->is_in_shared_space(si->si_addr)) {
        st->print("\n\nError accessing class data sharing archive."   \
                  " Mapped file inaccessible during execution, "      \
*** 3336,3355 ****
      st->print("SIG_IGN");
    } else {
      st->print("[%s]", get_signal_handler_name(handler, buf, buflen));
    }
  
!   st->print(", sa_mask[0]=" PTR32_FORMAT, *(uint32_t*)&sa.sa_mask);
  
    address rh = VMError::get_resetted_sighandler(sig);
    // May be, handler was resetted by VMError?
    if(rh != NULL) {
      handler = rh;
      sa.sa_flags = VMError::get_resetted_sigflags(sig) & SIGNIFICANT_SIGNAL_MASK;
    }
  
!   st->print(", sa_flags="   PTR32_FORMAT, sa.sa_flags);
  
    // Check: is it our handler?
    if(handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)signalHandler) ||
       handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)SR_handler)) {
      // It is our signal handler
--- 3290,3311 ----
      st->print("SIG_IGN");
    } else {
      st->print("[%s]", get_signal_handler_name(handler, buf, buflen));
    }
  
!   st->print(", sa_mask[0]=");
!   os::Posix::print_signal_set_short(st, &sa.sa_mask);
  
    address rh = VMError::get_resetted_sighandler(sig);
    // May be, handler was resetted by VMError?
    if(rh != NULL) {
      handler = rh;
      sa.sa_flags = VMError::get_resetted_sigflags(sig) & SIGNIFICANT_SIGNAL_MASK;
    }
  
!   st->print(", sa_flags=");
!   os::Posix::print_sa_flags(st, sa.sa_flags);
  
    // Check: is it our handler?
    if(handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)signalHandler) ||
       handler == CAST_FROM_FN_PTR(address, (sa_sigaction_t)SR_handler)) {
      // It is our signal handler