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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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6610ca19b3
add a simple compromise, in which the client can notify valgrind that certain code address ranges are invalid and should be retranslated. This is done using the VALGRIND_DISCARD_TRANSLATIONS macro in valgrind.h. At the same time take the opportunity to close the potentially fatal loophole that translations for executable segments were not being discarded when those segments were munmapped. They are now. Documentation updated. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@274
102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
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/*--------------------------------------------------------------------*/
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/*--- A header file containing constants (for assembly code). ---*/
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/*--- vg_constants.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, an x86 protected-mode emulator
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designed for debugging and profiling binaries on x86-Unixes.
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Copyright (C) 2000-2002 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 LICENSE.
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*/
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#ifndef __VG_CONSTANTS_H
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#define __VG_CONSTANTS_H
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/* This file is included in all Valgrind source files, including
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assembly ones. */
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/* All symbols externally visible from valgrind.so are prefixed
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as specified here. The prefix can be changed, so as to avoid
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namespace conflict problems.
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*/
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#define VGAPPEND(str1,str2) str1##str2
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/* These macros should add different prefixes so the same base
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name can safely be used across different macros. */
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#define VG_(str) VGAPPEND(vgPlain_,str)
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#define VGM_(str) VGAPPEND(vgMem_,str)
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#define VGP_(str) VGAPPEND(vgProf_,str)
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#define VGOFF_(str) VGAPPEND(vgOff_,str)
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/* Magic values that %ebp might be set to when returning to the
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dispatcher. The only other legitimate value is to point to the
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start of VG_(baseBlock). These also are return values from
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VG_(run_innerloop) to the scheduler.
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EBP means %ebp can legitimately have this value when a basic block
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returns to the dispatch loop. TRC means that this value is a valid
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thread return code, which the dispatch loop may return to the
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scheduler. */
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#define VG_TRC_EBP_JMP_STKADJ 17 /* EBP only; handled by dispatcher */
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#define VG_TRC_EBP_JMP_SYSCALL 19 /* EBP and TRC */
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#define VG_TRC_EBP_JMP_CLIENTREQ 23 /* EBP and TRC */
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#define VG_TRC_INNER_COUNTERZERO 29 /* TRC only; means bb ctr == 0 */
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#define VG_TRC_INNER_FASTMISS 31 /* TRC only; means fast-cache miss. */
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#define VG_TRC_UNRESUMABLE_SIGNAL 37 /* TRC only; got sigsegv/sigbus */
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/* Debugging hack for assembly code ... sigh. */
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#if 0
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#define OYNK(nnn) pushal; pushl $nnn; call VG_(oynk) ; addl $4,%esp; popal
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#else
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#define OYNK(nnn)
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#endif
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#if 0
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#define OYNNK(nnn) pushal; pushl $nnn; call VG_(oynk) ; addl $4,%esp; popal
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#else
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#define OYNNK(nnn)
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#endif
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/* Constants for the fast translation lookup cache. */
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#define VG_TT_FAST_BITS 15
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#define VG_TT_FAST_SIZE (1 << VG_TT_FAST_BITS)
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#define VG_TT_FAST_MASK ((VG_TT_FAST_SIZE) - 1)
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/* Constants for the fast original-code-write check cache. */
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/* Assembly code stubs make these requests ... */
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#define VG_USERREQ__SIGNAL_RETURNS 0x4001
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#define VG_USERREQ__PTHREAD_RETURNS 0x4002
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#endif /* ndef __VG_INCLUDE_H */
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/*--------------------------------------------------------------------*/
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/*--- end vg_constants.h ---*/
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/*--------------------------------------------------------------------*/
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