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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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174 lines
6.1 KiB
C
174 lines
6.1 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Machine-related things. pub_core_machine.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_MACHINE_H
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#define __PUB_CORE_MACHINE_H
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//--------------------------------------------------------------------
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// PURPOSE: This module contains code related to the particular
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// architecture, things like accessing guest state, endianness, word size,
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// etc.
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//--------------------------------------------------------------------
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#include "pub_tool_machine.h"
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#if defined(VGA_x86)
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# define VG_ELF_DATA2XXX ELFDATA2LSB
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# define VG_ELF_MACHINE EM_386
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# define VG_ELF_CLASS ELFCLASS32
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#elif defined(VGA_amd64)
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# define VG_ELF_DATA2XXX ELFDATA2LSB
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# define VG_ELF_MACHINE EM_X86_64
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# define VG_ELF_CLASS ELFCLASS64
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#elif defined(VGA_ppc32)
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# define VG_ELF_DATA2XXX ELFDATA2MSB
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# define VG_ELF_MACHINE EM_PPC
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# define VG_ELF_CLASS ELFCLASS32
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#elif defined(VGA_ppc64)
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# define VG_ELF_DATA2XXX ELFDATA2MSB
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# define VG_ELF_MACHINE EM_PPC64
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# define VG_ELF_CLASS ELFCLASS64
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#else
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# error Unknown arch
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#endif
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#if defined(VGA_x86)
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# define VG_INSTR_PTR guest_EIP
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# define VG_STACK_PTR guest_ESP
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# define VG_FRAME_PTR guest_EBP
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#elif defined(VGA_amd64)
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# define VG_INSTR_PTR guest_RIP
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# define VG_STACK_PTR guest_RSP
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# define VG_FRAME_PTR guest_RBP
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#elif defined(VGA_ppc32)
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# define VG_INSTR_PTR guest_CIA
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# define VG_STACK_PTR guest_GPR1
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# define VG_FRAME_PTR guest_GPR1 // No frame ptr for PPC
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#elif defined(VGA_ppc64)
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# define VG_INSTR_PTR guest_CIA
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# define VG_STACK_PTR guest_GPR1
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# define VG_FRAME_PTR guest_GPR1 // No frame ptr for PPC
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#else
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# error Unknown arch
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#endif
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// Offsets for the Vex state
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#define VG_O_STACK_PTR (offsetof(VexGuestArchState, VG_STACK_PTR))
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//-------------------------------------------------------------
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/* Details about the capabilities of the underlying (host) CPU. These
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details are acquired by (1) enquiring with the CPU at startup, or
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(2) from the AT_SYSINFO entries the kernel gave us (ppc cache
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line size). It's a bit nasty in the sense that there's no obvious
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way to stop uses of some of this info before it's ready to go.
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Current dependencies are:
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x86: initially: call VG_(machine_get_hwcaps)
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then safe to use VG_(machine_get_VexArchInfo)
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and VG_(machine_x86_have_mxcsr)
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-------------
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amd64: initially: call VG_(machine_get_hwcaps)
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then safe to use VG_(machine_get_VexArchInfo)
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-------------
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ppc32: initially: call VG_(machine_get_hwcaps)
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call VG_(machine_ppc32_set_clszB)
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then safe to use VG_(machine_get_VexArchInfo)
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and VG_(machine_ppc32_has_FP)
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and VG_(machine_ppc32_has_VMX)
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-------------
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ppc64: initially: call VG_(machine_get_hwcaps)
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call VG_(machine_ppc64_set_clszB)
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then safe to use VG_(machine_get_VexArchInfo)
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and VG_(machine_ppc64_has_VMX)
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VG_(machine_get_hwcaps) may use signals (although it attempts to
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leave signal state unchanged) and therefore should only be
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called before m_main sets up the client's signal state.
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*/
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/* Determine what insn set and insn set variant the host has, and
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record it. To be called once at system startup. Returns False if
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this a CPU incapable of running Valgrind. */
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extern Bool VG_(machine_get_hwcaps)( void );
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/* Fetch host cpu info, as per above comment. */
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extern void VG_(machine_get_VexArchInfo)( /*OUT*/VexArch*,
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/*OUT*/VexArchInfo* );
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/* Notify host cpu cache line size, as per above comment. */
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#if defined(VGA_ppc32)
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extern void VG_(machine_ppc32_set_clszB)( Int );
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#endif
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#if defined(VGA_ppc64)
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extern void VG_(machine_ppc64_set_clszB)( Int );
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#endif
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/* X86: set to 1 if the host is able to do {ld,st}mxcsr (load/store
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the SSE control/status register), else zero. Is referenced from
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assembly code, so do not change from a 32-bit int. */
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#if defined(VGA_x86)
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extern UInt VG_(machine_x86_have_mxcsr);
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#endif
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/* PPC32: set to 1 if FP instructions are supported in user-space,
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else 0. Is referenced from assembly code, so do not change from a
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32-bit int. */
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#if defined(VGA_ppc32)
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extern UInt VG_(machine_ppc32_has_FP);
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#endif
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/* PPC32: set to 1 if Altivec instructions are supported in
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user-space, else 0. Is referenced from assembly code, so do not
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change from a 32-bit int. */
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#if defined(VGA_ppc32)
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extern UInt VG_(machine_ppc32_has_VMX);
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#endif
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/* PPC64: set to 1 if Altivec instructions are supported in
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user-space, else 0. Is referenced from assembly code, so do not
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change from a 64-bit int. */
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#if defined(VGA_ppc64)
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extern ULong VG_(machine_ppc64_has_VMX);
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#endif
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#endif // __PUB_CORE_MACHINE_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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