blob: 5920672bf6cf37f42bc86fb33890a8ff7abefffa [file] [log] [blame]
/*--- begin libvex_guest_amd64.h ---*/
This file is part of Valgrind, a dynamic binary instrumentation
Copyright (C) 2004-2013 OpenWorks LLP
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
The GNU General Public License is contained in the file COPYING.
Neither the names of the U.S. Department of Energy nor the
University of California nor the names of its contributors may be
used to endorse or promote products derived from this software
without prior written permission.
#include "libvex_basictypes.h"
/*--- Vex's representation of the AMD64 CPU state. ---*/
/* See detailed comments at the top of libvex_guest_x86.h for
further info. This representation closely follows the
x86 representation.
struct {
/* Event check fail addr, counter, and padding to make RAX 16
aligned. */
/* 0 */ ULong host_EvC_FAILADDR;
/* 8 */ UInt host_EvC_COUNTER;
/* 12 */ UInt pad0;
/* 16 */ ULong guest_RAX;
/* 24 */ ULong guest_RCX;
/* 32 */ ULong guest_RDX;
/* 40 */ ULong guest_RBX;
/* 48 */ ULong guest_RSP;
/* 56 */ ULong guest_RBP;
/* 64 */ ULong guest_RSI;
/* 72 */ ULong guest_RDI;
/* 80 */ ULong guest_R8;
/* 88 */ ULong guest_R9;
/* 96 */ ULong guest_R10;
/* 104 */ ULong guest_R11;
/* 112 */ ULong guest_R12;
/* 120 */ ULong guest_R13;
/* 128 */ ULong guest_R14;
/* 136 */ ULong guest_R15;
/* 4-word thunk used to calculate O S Z A C P flags. */
/* 144 */ ULong guest_CC_OP;
/* 152 */ ULong guest_CC_DEP1;
/* 160 */ ULong guest_CC_DEP2;
/* 168 */ ULong guest_CC_NDEP;
/* The D flag is stored here, encoded as either -1 or +1 */
/* 176 */ ULong guest_DFLAG;
/* 184 */ ULong guest_RIP;
/* Bit 18 (AC) of eflags stored here, as either 0 or 1. */
/* ... */ ULong guest_ACFLAG;
/* Bit 21 (ID) of eflags stored here, as either 0 or 1. */
/* 192 */ ULong guest_IDFLAG;
/* Probably a lot more stuff too.
D,ID flags
16 128-bit SSE registers
all the old x87 FPU gunk
segment registers */
/* HACK to make tls on amd64-linux work. %fs only ever seems to
hold zero, and so guest_FS_ZERO holds the 64-bit offset
associated with a %fs value of zero. */
/* 200 */ ULong guest_FS_ZERO;
/* YMM registers. Note that these must be allocated
consecutively in order that the SSE4.2 PCMP{E,I}STR{I,M}
helpers can treat them as an array. YMM16 is a fake reg used
as an intermediary in handling aforementioned insns. */
/* 208 */ULong guest_SSEROUND;
/* 216 */U256 guest_YMM0;
U256 guest_YMM1;
U256 guest_YMM2;
U256 guest_YMM3;
U256 guest_YMM4;
U256 guest_YMM5;
U256 guest_YMM6;
U256 guest_YMM7;
U256 guest_YMM8;
U256 guest_YMM9;
U256 guest_YMM10;
U256 guest_YMM11;
U256 guest_YMM12;
U256 guest_YMM13;
U256 guest_YMM14;
U256 guest_YMM15;
U256 guest_YMM16;
/* FPU */
/* Note. Setting guest_FTOP to be ULong messes up the
delicately-balanced PutI/GetI optimisation machinery.
Therefore best to leave it as a UInt. */
UInt guest_FTOP;
ULong guest_FPREG[8];
UChar guest_FPTAG[8];
ULong guest_FPROUND;
ULong guest_FC3210;
/* Emulation notes */
UInt guest_EMNOTE;
/* Translation-invalidation area description. Not used on amd64
(there is no invalidate-icache insn), but needed so as to
allow users of the library to uniformly assume that the guest
state contains these two fields -- otherwise there is
compilation breakage. On amd64, these two fields are set to
zero by LibVEX_GuestAMD64_initialise and then should be
ignored forever thereafter. */
ULong guest_CMSTART;
ULong guest_CMLEN;
/* Used to record the unredirected guest address at the start of
a translation whose start has been redirected. By reading
this pseudo-register shortly afterwards, the translation can
find out what the corresponding no-redirection address was.
Note, this is only set for wrap-style redirects, not for
replace-style ones. */
ULong guest_NRADDR;
/* Used for Darwin syscall dispatching. */
ULong guest_SC_CLASS;
/* HACK to make tls on darwin work. %gs only ever seems to
hold 0x60, and so guest_GS_0x60 holds the 64-bit offset
associated with a %gs value of 0x60. (A direct analogue
of the %fs-zero hack for amd64-linux). */
ULong guest_GS_0x60;
/* Needed for Darwin (but mandated for all guest architectures):
RIP at the last syscall insn (int 0x80/81/82, sysenter,
syscall). Used when backing up to restart a syscall that has
been interrupted by a signal. */
ULong guest_IP_AT_SYSCALL;
/* Padding to make it have an 16-aligned size */
ULong pad1;
/*--- Utility functions for amd64 guest stuff. ---*/
/* Initialise all guest amd64 state. The FPU is put in default
mode. */
void LibVEX_GuestAMD64_initialise ( /*OUT*/VexGuestAMD64State* vex_state );
/* Extract from the supplied VexGuestAMD64State structure the
corresponding native %rflags value. */
ULong LibVEX_GuestAMD64_get_rflags ( /*IN*/const VexGuestAMD64State* vex_state );
/* Set the carry flag in the given state to 'new_carry_flag', which
should be zero or one. */
LibVEX_GuestAMD64_put_rflag_c ( ULong new_carry_flag,
/*MOD*/VexGuestAMD64State* vex_state );
#endif /* ndef __LIBVEX_PUB_GUEST_AMD64_H */
/*--- libvex_guest_amd64.h ---*/