hotspot/src/share/vm/runtime/frame.inline.hpp
author jmasa
Sun, 02 Mar 2008 16:10:12 -0800
changeset 186 32e6c95f8d9b
parent 1 489c9b5090e2
child 2131 98f9cef66a34
permissions -rw-r--r--
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set. Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted. Reviewed-by: iveresov, apetrusenko, pbk, ysr

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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// This file holds platform-independant bodies of inline functions for frames.

// Note: The bcx usually contains the bcp; however during GC it contains the bci
//       (changed by gc_prologue() and gc_epilogue()) to be methodOop position
//       independent. These accessors make sure the correct value is returned
//       by testing the range of the bcx value. bcp's are guaranteed to be above
//       max_method_code_size, since methods are always allocated in OldSpace and
//       Eden is allocated before OldSpace.
//
//       The bcp is accessed sometimes during GC for ArgumentDescriptors; than
//       the correct translation has to be performed (was bug).

inline bool frame::is_bci(intptr_t bcx) {
#ifdef _LP64
  return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ;
#else
  return 0 <= bcx && bcx <= max_method_code_size;
#endif
}

inline bool frame::is_entry_frame() const {
  return StubRoutines::returns_to_call_stub(pc());
}

inline bool frame::is_first_frame() const {
  return is_entry_frame() && entry_frame_is_first();
}

// here are the platform-dependent bodies:

# include "incls/_frame_pd.inline.hpp.incl"