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/* syntax.h -- Definitions for x86 syntax variations.
*
* Copyright (C) 1992, 1994, 1995, 1998,
* 2001, 2002 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <https://www.gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* Note: This code is heavily based on the GNU MP Library.
* Actually it's the same code with only minor changes in the
* way the data is stored; this is to support the abstraction
* of an optional secure memory allocation which may be used
* to avoid revealing of sensitive data due to paging etc.
*/
#include <config.h>
#ifdef __i386__
#ifdef HAVE_GCC_ASM_CFI_DIRECTIVES
# define CFI_STARTPROC() .cfi_startproc
# define CFI_ENDPROC() .cfi_endproc
# define CFI_ADJUST_CFA_OFFSET(off) .cfi_adjust_cfa_offset off
# define CFI_REL_OFFSET(reg,off) .cfi_rel_offset reg, off
# define CFI_RESTORE(reg) .cfi_restore reg
# define CFI_PUSH(reg) \
CFI_ADJUST_CFA_OFFSET(4); CFI_REL_OFFSET(reg, 0)
# define CFI_POP(reg) \
CFI_ADJUST_CFA_OFFSET(-4); CFI_RESTORE(reg)
#else
# define CFI_STARTPROC()
# define CFI_ENDPROC()
# define CFI_ADJUST_CFA_OFFSET(off)
# define CFI_REL_OFFSET(reg,off)
# define CFI_RESTORE(reg)
# define CFI_PUSH(reg)
# define CFI_POP(reg)
#endif
#endif
#undef ALIGN
#if defined (BSD_SYNTAX) || defined (ELF_SYNTAX)
#define R(r) %r
#define MEM(base)(base)
#define MEM_DISP(base,displacement)displacement(R(base))
#define MEM_INDEX(base,index,size)(R(base),R(index),size)
#ifdef __STDC__
#define INSN1(mnemonic,size_suffix,dst)mnemonic##size_suffix dst
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic##size_suffix src,dst
#else
#define INSN1(mnemonic,size_suffix,dst)mnemonic/**/size_suffix dst
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic/**/size_suffix src,dst
#endif
#define TEXT .text
#if defined (BSD_SYNTAX)
#define ALIGN(log) .align log
#endif
#if defined (ELF_SYNTAX)
#define ALIGN(log) .align 1<<(log)
#endif
#define GLOBL .globl
#endif
#ifdef INTEL_SYNTAX
#define R(r) r
#define MEM(base)[base]
#define MEM_DISP(base,displacement)[base+(displacement)]
#define MEM_INDEX(base,index,size)[base+index*size]
#define INSN1(mnemonic,size_suffix,dst)mnemonic dst
#define INSN2(mnemonic,size_suffix,dst,src)mnemonic dst,src
#define TEXT .text
#define ALIGN(log) .align log
#define GLOBL .globl
#endif
#ifdef X86_BROKEN_ALIGN
#undef ALIGN
#define ALIGN(log) .align log,0x90
#endif
/* 'ret' instruction replacement for straight-line speculation mitigation */
#define ret_spec_stop \
ret; int3;
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