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/* **********************************************************
* Copyright (c) 2011-2014 Google, Inc. All rights reserved.
* Copyright (c) 2001-2010 VMware, Inc. All rights reserved.
* **********************************************************/
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of VMware, Inc. nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL VMWARE, INC. OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
/* Copyright (c) 2003-2007 Determina Corp. */
/* Copyright (c) 2001-2003 Massachusetts Institute of Technology */
/* Copyright (c) 2001 Hewlett-Packard Company */
/* decode_shared.c -- shared decoding data */
#include "../globals.h"
#include "arch.h"
#include "instr.h"
#include "decode.h"
#if defined(DEBUG) && defined(CLIENT_INTERFACE)
/* case 10450: give messages to clients */
# undef ASSERT /* N.B.: if have issues w/ DYNAMO_OPTION, re-instate */
# undef ASSERT_TRUNCATE
# undef ASSERT_BITFIELD_TRUNCATE
# undef ASSERT_NOT_REACHED
# define ASSERT DO_NOT_USE_ASSERT_USE_CLIENT_ASSERT_INSTEAD
# define ASSERT_TRUNCATE DO_NOT_USE_ASSERT_USE_CLIENT_ASSERT_INSTEAD
# define ASSERT_BITFIELD_TRUNCATE DO_NOT_USE_ASSERT_USE_CLIENT_ASSERT_INSTEAD
# define ASSERT_NOT_REACHED DO_NOT_USE_ASSERT_USE_CLIENT_ASSERT_INSTEAD
#endif
const char * const size_names[] = {
#ifdef X86
"<invalid>"/* was <NULL> */,
"<invalid>"/* was rax */, "<invalid>"/* was rcx */,
"<invalid>"/* was rdx */, "<invalid>"/* was rbx */,
"<invalid>"/* was rsp */, "<invalid>"/* was rbp */,
"<invalid>"/* was rsi */, "<invalid>"/* was rdi */,
"<invalid>"/* was r8 */, "<invalid>"/* was r9 */,
"<invalid>"/* was r10 */, "<invalid>"/* was r11 */,
"<invalid>"/* was r12 */, "<invalid>"/* was r13 */,
"<invalid>"/* was r14 */, "<invalid>"/* was r15 */,
"<invalid>"/* was eax */, "<invalid>"/* was ecx */,
"<invalid>"/* was edx */, "<invalid>"/* was ebx */,
"<invalid>"/* was esp */, "<invalid>"/* was ebp */,
"<invalid>"/* was esi */, "<invalid>"/* was edi */,
"<invalid>"/* was r8d */, "<invalid>"/* was r9d */,
"<invalid>"/* was r10d */, "<invalid>"/* was r11d */,
"<invalid>"/* was r12d */, "<invalid>"/* was r13d */,
"<invalid>"/* was r14d */, "<invalid>"/* was r15d */,
"<invalid>"/* was ax */, "<invalid>"/* was cx */,
"<invalid>"/* was dx */, "<invalid>"/* was bx */,
"<invalid>"/* was sp */, "<invalid>"/* was bp */,
"<invalid>"/* was si */, "<invalid>"/* was di */,
"<invalid>"/* was r8w */, "<invalid>"/* was r9w */,
"<invalid>"/* was r10w */, "<invalid>"/* was r11w */,
"<invalid>"/* was r12w */, "<invalid>"/* was r13w */,
"<invalid>"/* was r14w */, "<invalid>"/* was r15w */,
"<invalid>"/* was al */, "<invalid>"/* was cl */,
"<invalid>"/* was dl */, "<invalid>"/* was bl */,
"<invalid>"/* was ah */, "<invalid>"/* was ch */,
"<invalid>"/* was dh */, "<invalid>"/* was bh */,
"<invalid>"/* was r8l */, "<invalid>"/* was r9l */,
"<invalid>"/* was r10l */, "<invalid>"/* was r11l */,
"<invalid>"/* was r12l */, "<invalid>"/* was r13l */,
"<invalid>"/* was r14l */, "<invalid>"/* was r15l */,
"<invalid>"/* was spl */, "<invalid>"/* was bpl */,
"<invalid>"/* was sil */, "<invalid>"/* was dil */,
"<invalid>"/* was mm0 */, "<invalid>"/* was mm1 */,
"<invalid>"/* was mm2 */, "<invalid>"/* was mm3 */,
"<invalid>"/* was mm4 */, "<invalid>"/* was mm5 */,
"<invalid>"/* was mm6 */, "<invalid>"/* was mm7 */,
"<invalid>"/* was xmm0 */, "<invalid>"/* was xmm1 */,
"<invalid>"/* was xmm2 */, "<invalid>"/* was xmm3 */,
"<invalid>"/* was xmm4 */, "<invalid>"/* was xmm5 */,
"<invalid>"/* was xmm6 */, "<invalid>"/* was xmm7 */,
"<invalid>"/* was xmm8 */, "<invalid>"/* was xmm9 */,
"<invalid>"/* was xmm10 */,"<invalid>"/* was xmm11 */,
"<invalid>"/* was xmm12 */,"<invalid>"/* was xmm13 */,
"<invalid>"/* was xmm14 */,"<invalid>"/* was xmm15 */,
"<invalid>"/* was st0 */, "<invalid>"/* was st1 */,
"<invalid>"/* was st2 */, "<invalid>"/* was st3 */,
"<invalid>"/* was st4 */, "<invalid>"/* was st5 */,
"<invalid>"/* was st6 */, "<invalid>"/* was st7 */,
"<invalid>"/* was es */, "<invalid>"/* was cs */,
"<invalid>"/* was ss */, "<invalid>"/* was ds */,
"<invalid>"/* was fs */, "<invalid>"/* was gs */,
"<invalid>"/* was dr0 */, "<invalid>"/* was dr1 */,
"<invalid>"/* was dr2 */, "<invalid>"/* was dr3 */,
"<invalid>"/* was dr4 */, "<invalid>"/* was dr5 */,
"<invalid>"/* was dr6 */, "<invalid>"/* was dr7 */,
"<invalid>"/* was dr8 */, "<invalid>"/* was dr9 */,
"<invalid>"/* was dr10 */, "<invalid>"/* was dr11 */,
"<invalid>"/* was dr12 */, "<invalid>"/* was dr13 */,
"<invalid>"/* was dr14 */, "<invalid>"/* was dr15 */,
"<invalid>"/* was cr0 */, "<invalid>"/* was cr1 */,
"<invalid>"/* was cr2 */, "<invalid>"/* was cr3 */,
"<invalid>"/* was cr4 */, "<invalid>"/* was cr5 */,
"<invalid>"/* was cr6 */, "<invalid>"/* was cr7 */,
"<invalid>"/* was cr8 */, "<invalid>"/* was cr9 */,
"<invalid>"/* was cr10 */, "<invalid>"/* was cr11 */,
"<invalid>"/* was cr12 */, "<invalid>"/* was cr13 */,
"<invalid>"/* was cr14 */, "<invalid>"/* was cr15 */,
"<invalid>"/* was <invalid> */,
#endif
"OPSZ_NA",
"OPSZ_lea",
"OPSZ_1",
"OPSZ_2",
"OPSZ_4",
"OPSZ_6",
"OPSZ_8",
"OPSZ_10",
"OPSZ_16",
"OPSZ_14",
"OPSZ_28",
"OPSZ_94",
"OPSZ_108",
"OPSZ_512",
"OPSZ_2_short1",
"OPSZ_4_short2",
"OPSZ_4_rex8_short2",
"OPSZ_4_rex8",
"OPSZ_6_irex10_short4",
"OPSZ_8_short2",
"OPSZ_8_short4",
"OPSZ_28_short14",
"OPSZ_108_short94",
"OPSZ_4x8",
"OPSZ_6x10",
"OPSZ_4x8_short2",
"OPSZ_4x8_short2xi8",
"OPSZ_4_short2xi4",
"OPSZ_1_reg4",
"OPSZ_2_reg4",
"OPSZ_4_reg16",
"OPSZ_xsave",
"OPSZ_12",
"OPSZ_32",
"OPSZ_40",
"OPSZ_32_short16",
"OPSZ_8_rex16",
"OPSZ_8_rex16_short4",
"OPSZ_12_rex40_short6",
"OPSZ_16_vex32",
"OPSZ_15",
"OPSZ_3",
"OPSZ_1b",
"OPSZ_2b",
"OPSZ_3b",
"OPSZ_4b",
"OPSZ_5b",
"OPSZ_6b",
"OPSZ_12b",
"OPSZ_25b",
"OPSZ_VAR_REGLIST",
"OPSZ_20",
"OPSZ_24",
"OPSZ_36",
"OPSZ_44",
"OPSZ_48",
"OPSZ_52",
"OPSZ_56",
"OPSZ_60",
"OPSZ_64",
"OPSZ_1_of_8",
"OPSZ_2_of_8",
"OPSZ_4_of_8",
"OPSZ_1_of_16",
"OPSZ_2_of_16",
"OPSZ_4_of_16",
"OPSZ_4_rex8_of_16",
"OPSZ_8_of_16",
"OPSZ_12_of_16",
"OPSZ_12_rex8_of_16",
"OPSZ_14_of_16",
"OPSZ_15_of_16",
"OPSZ_8_of_16_vex32",
"OPSZ_16_of_32",
};
/* point at this when you need a canonical invalid instr
* type is OP_INVALID so can be copied to instr->opcode
*/
#define xx 0 /* TYPE_NONE */, OPSZ_NA
const instr_info_t invalid_instr =
{OP_INVALID, 0x000000, "(bad)", xx, xx, xx, xx, xx, 0, 0, 0};
#undef xx
/* PR 302344: used for shared traces -tracedump_origins where we
* need to change the mode but we have no dcontext
*/
static bool initexit_isa_mode = DEFAULT_ISA_MODE;
/* The decode and encode routines use a per-thread persistent flag that
* indicates which processor mode to use. This routine sets that flag to the
* indicated value and optionally returns the old value. Be sure to restore the
* old value prior to any further application execution to avoid problems in
* mis-interpreting application code.
*/
bool
dr_set_isa_mode(dcontext_t *dcontext, dr_isa_mode_t new_mode,
dr_isa_mode_t *old_mode_out OUT)
{
dr_isa_mode_t old_mode;
/* We would disallow but some early init routines need to use global heap */
if (dcontext == GLOBAL_DCONTEXT)
dcontext = get_thread_private_dcontext();
/* Support GLOBAL_DCONTEXT or NULL for standalone/static modes */
if (dcontext == NULL || dcontext == GLOBAL_DCONTEXT) {
#if !defined(STANDALONE_DECODER)
CLIENT_ASSERT(!dynamo_initialized || dynamo_exited ||
dcontext == GLOBAL_DCONTEXT, "internal isa mode error");
#endif
old_mode = initexit_isa_mode;
if (is_isa_mode_legal(new_mode))
initexit_isa_mode = new_mode;
} else {
old_mode = dcontext->isa_mode;
if (is_isa_mode_legal(new_mode))
dcontext->isa_mode = new_mode;
}
if (old_mode_out != NULL)
*old_mode_out = old_mode;
return is_isa_mode_legal(new_mode);
}
/* The decode and encode routines use a per-thread persistent flag that
* indicates which processor mode to use. This routine returns the value of
* that flag.
*/
dr_isa_mode_t
dr_get_isa_mode(dcontext_t *dcontext)
{
/* We would disallow but some early init routines need to use global heap */
if (dcontext == GLOBAL_DCONTEXT)
dcontext = get_thread_private_dcontext();
/* Support GLOBAL_DCONTEXT or NULL for standalone/static modes */
if (dcontext == NULL || dcontext == GLOBAL_DCONTEXT) {
#if !defined(STANDALONE_DECODER)
CLIENT_ASSERT(!dynamo_initialized || dynamo_exited ||
dcontext == GLOBAL_DCONTEXT, "internal isa mode error");
#endif
return initexit_isa_mode;
} else
return dcontext->isa_mode;
}