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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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87 lines
3.5 KiB
C
87 lines
3.5 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- The trampoline code page. pub_core_trampoline.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) 2000-2005 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_TRAMPOLINE_H
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#define __PUB_CORE_TRAMPOLINE_H
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//--------------------------------------------------------------------
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// PURPOSE: This module defines a few replacement functions for Linux
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// vsyscalls, which we can't implement directly. It also contains
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// stubs for signal returns. Note, all the code within runs on the
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// simulated CPU. The vsyscall stubs are gotten to by use of the
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// redirect mechanism.
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//--------------------------------------------------------------------
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/* These two delimit our handwritten assembly code, so we can tell
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tools which track memory that this area should be regarded as
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readable, at least. Otherwise Memcheck complains we're jumping to
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invalid addresses. */
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extern void VG_(trampoline_stuff_start);
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extern void VG_(trampoline_stuff_end);
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#if defined(VGP_x86_linux)
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extern void VG_(x86_linux_SUBST_FOR_sigreturn);
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extern void VG_(x86_linux_SUBST_FOR_rt_sigreturn);
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extern void VG_(x86_linux_REDIR_FOR__dl_sysinfo_int80);
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extern Char* VG_(x86_linux_REDIR_FOR_index) ( const Char*, Int );
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#endif
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#if defined(VGP_amd64_linux)
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extern void VG_(amd64_linux_SUBST_FOR_rt_sigreturn);
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extern void VG_(amd64_linux_REDIR_FOR_vgettimeofday);
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extern void VG_(amd64_linux_REDIR_FOR_vtime);
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#endif
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#if defined(VGP_ppc32_linux)
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extern UInt VG_(ppc32_linux_REDIR_FOR_strlen)( void* );
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extern UInt VG_(ppc32_linux_REDIR_FOR_strcmp)( void*, void* );
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extern void* VG_(ppc32_linux_REDIR_FOR_strchr)( void*, Int );
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#endif
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#if defined(VGP_ppc64_linux)
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extern UInt VG_(ppc64_linux_REDIR_FOR_strlen)( void* );
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extern void* VG_(ppc64_linux_REDIR_FOR_strchr)( void*, Int );
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/* A label (sans dot) marking the ultra-magical return stub via which
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all redirected and wrapped functions are made to "return" on
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ppc64-linux. The one insn at this label is never really
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translated. Instead, m_translate generates IR to restore the
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thread's LR and R2 registers from a small stack in the ppc64 guest
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state structure, and then branch to LR. Convoluted? Confusing?
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You betcha. Could I think of anything simpler? No. */
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extern void VG_(ppc64_linux_magic_redirect_return_stub);
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#endif
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#endif // __PUB_CORE_TRAMPOLINE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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