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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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98 lines
4.0 KiB
C
98 lines
4.0 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- The dispatcher. pub_core_dispatch.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2010 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_CORE_DISPATCH_H
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#define __PUB_CORE_DISPATCH_H
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//--------------------------------------------------------------------
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// PURPOSE: This module contains the inner loop of the execution
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// mechanism, which is: find next basic block, execute it, repeat until
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// the next bb isn't found in the fast-cache; or if the current bb
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// exited with a request for some special action before continuing; or
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// if the current thread has used up its scheduling quantum.
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//--------------------------------------------------------------------
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#include "pub_core_dispatch_asm.h"
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/* This subroutine is called from the C world. It is passed
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a pointer to the VEX guest state (arch.vex). It must run code
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from the instruction pointer in the guest state, and exit when
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VG_(dispatch_ctr) reaches zero, or we need to defer to the scheduler.
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The return value must indicate why it returned back to the scheduler.
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It can also be exited if the executing code throws a non-resumable
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signal, for example SIGSEGV, in which case control longjmp()s back past
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here.
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If do_profiling is nonzero, the profile counters arrays should be
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updated for each translation run.
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This code simply handles the common case fast -- when the translation
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address is found in the translation cache. For anything else, the
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scheduler does the work.
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NOTE, VG_(run_innerloop) MUST NOT BE USED for noredir translations.
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Instead use VG_(run_a_noredir_translation).
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*/
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extern
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UWord VG_(run_innerloop) ( void* guest_state, UWord do_profiling );
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#if defined(VGA_x86) || defined(VGA_amd64)
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/* We need to locate a couple of labels inside VG_(run_innerloop), so
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that Vex can add branches to them from generated code. Hence the
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following somewhat bogus decls. At least on x86 and amd64. ppc32
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and ppc64 use straightforward bl-blr to get from dispatcher to
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translation and back and so do not need these labels. */
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extern Addr VG_(run_innerloop__dispatch_unprofiled);
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extern Addr VG_(run_innerloop__dispatch_profiled);
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#endif
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/* Run a no-redir translation. argblock points to 4 UWords, 2 to carry args
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and 2 to carry results:
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0: input: ptr to translation
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1: input: ptr to guest state
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2: output: next guest PC
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3: output: guest state pointer afterwards (== thread return code)
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MUST NOT BE USED for non-noredir (normal) translations.
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*/
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extern void VG_(run_a_noredir_translation) ( volatile UWord* argblock );
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#if defined(VGA_x86) || defined(VGA_amd64)
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/* We need to a label inside VG_(run_a_noredir_translation), so that
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Vex can add branches to them from generated code. Hence the
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following somewhat bogus decl. */
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extern Addr VG_(run_a_noredir_translation__return_point);
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#endif
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#endif // __PUB_CORE_DISPATCH_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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