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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- Asm-only dispatcher stuff.           pub_core_dispatch_asm.h ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright (C) 2000-2012 Julian Seward
     11       jseward (at) acm.org
     12 
     13    This program is free software; you can redistribute it and/or
     14    modify it under the terms of the GNU General Public License as
     15    published by the Free Software Foundation; either version 2 of the
     16    License, or (at your option) any later version.
     17 
     18    This program is distributed in the hope that it will be useful, but
     19    WITHOUT ANY WARRANTY; without even the implied warranty of
     20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21    General Public License for more details.
     22 
     23    You should have received a copy of the GNU General Public License
     24    along with this program; if not, write to the Free Software
     25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     26    02111-1307, USA.
     27 
     28    The GNU General Public License is contained in the file COPYING.
     29 */
     30 
     31 #ifndef __PUB_CORE_DISPATCH_ASM_H
     32 #define __PUB_CORE_DISPATCH_ASM_H
     33 
     34 /* Magic values that the guest state might be set to when returning to the
     35    dispatcher.  The only other legitimate value is to point to the
     36    start of the thread's VEX guest state.  These also are return values from
     37    from VG_(run_innerloop) to the scheduler.
     38 */
     39 /* Defines values for JMP_EMWARN, JMP_SYSCALL, JMP_CLIENTREQ and
     40    JMP_YIELD */
     41 #include "libvex_trc_values.h"
     42 
     43 /* And some more of our own.  These must not have the same values as
     44    those from libvex_trc_values.h.  (viz, 60 or below is safe).
     45 
     46    (The following comment is no longer relevant, but is retained
     47    for historical purposes.)
     48    These values *must* be odd (have bit 0 set) because the dispatchers
     49    (coregrind/m_dispatch/dispatch-*-*.S) use this fact to distinguish
     50    a TRC value from the unchanged baseblock pointer -- which has 0 as
     51    its lowest bit.
     52 */
     53 #define VG_TRC_BORING              29 /* no event; just keep going */
     54 #define VG_TRC_INNER_FASTMISS      37 /* TRC only; means fast-cache miss. */
     55 #define VG_TRC_INNER_COUNTERZERO   41 /* TRC only; means bb ctr == 0 */
     56 #define VG_TRC_FAULT_SIGNAL        43 /* TRC only; got sigsegv/sigbus */
     57 #define VG_TRC_INVARIANT_FAILED    47 /* TRC only; invariant violation */
     58 #define VG_TRC_CHAIN_ME_TO_SLOW_EP 49 /* TRC only; chain to slow EP */
     59 #define VG_TRC_CHAIN_ME_TO_FAST_EP 51 /* TRC only; chain to fast EP */
     60 
     61 #endif   // __PUB_CORE_DISPATCH_ASM_H
     62 
     63 /*--------------------------------------------------------------------*/
     64 /*--- end                                                          ---*/
     65 /*--------------------------------------------------------------------*/
     66