mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-10 05:37:06 +00:00
b36f48842a
to it. Now there are no more offsets and no copying of code into the stack. We just redirect directly to entry points in m_syscalls.S. This will mess up pointercheck, since the redirect targets are now in Valgrind's address space, not the client's. But pointercheck is hosed anyway, and I'd rather back off to something simple whilst ppc32 is stabilised. When the address space management stuff is overhauled then pointercheck may or may not get reinstated, and if it does then the trampoline stuff will need revisiting. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3977
67 lines
2.5 KiB
C
67 lines
2.5 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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#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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#endif // __PUB_CORE_TRAMPOLINE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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