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diff --git a/cipher/asm-common-amd64.h b/cipher/asm-common-amd64.h
index 870fef9a..3fa065e8 100644
--- a/cipher/asm-common-amd64.h
+++ b/cipher/asm-common-amd64.h
@@ -1,213 +1,217 @@
/* asm-common-amd64.h - Common macros for AMD64 assembly
*
* Copyright (C) 2018 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#ifndef GCRY_ASM_COMMON_AMD64_H
#define GCRY_ASM_COMMON_AMD64_H
#include <config.h>
#ifdef HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS
# define ELF(...) __VA_ARGS__
#else
# define ELF(...) /*_*/
#endif
#ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS
# define SECTION_RODATA .section .rdata
#else
# define SECTION_RODATA .section .rodata
#endif
#ifdef __PIC__
# define rRIP (%rip)
#else
# define rRIP
#endif
#ifdef __PIC__
# define RIP %rip
#else
# define RIP
#endif
#ifdef __PIC__
# define ADD_RIP +rip
#else
# define ADD_RIP
#endif
#if defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS) || !defined(__PIC__)
# define GET_EXTERN_POINTER(name, reg) movabsq $name, reg
#else
# ifdef __code_model_large__
# define GET_EXTERN_POINTER(name, reg) \
pushq %r15; \
+ CFI_PUSH(%r15); \
pushq %r14; \
+ CFI_PUSH(%r14); \
1: leaq 1b(%rip), reg; \
movabsq $_GLOBAL_OFFSET_TABLE_-1b, %r14; \
movabsq $name@GOT, %r15; \
addq %r14, reg; \
popq %r14; \
+ CFI_POP(%r14); \
movq (reg, %r15), reg; \
- popq %r15;
+ popq %r15; \
+ CFI_POP(%r15);
# else
# define GET_EXTERN_POINTER(name, reg) movq name@GOTPCREL(%rip), reg
# endif
#endif
#ifdef HAVE_GCC_ASM_CFI_DIRECTIVES
/* CFI directives to emit DWARF stack unwinding information. */
# define CFI_STARTPROC() .cfi_startproc
# define CFI_ENDPROC() .cfi_endproc
# define CFI_REMEMBER_STATE() .cfi_remember_state
# define CFI_RESTORE_STATE() .cfi_restore_state
# define CFI_ADJUST_CFA_OFFSET(off) .cfi_adjust_cfa_offset off
# define CFI_REL_OFFSET(reg,off) .cfi_rel_offset reg, off
# define CFI_DEF_CFA_REGISTER(reg) .cfi_def_cfa_register reg
# define CFI_REGISTER(ro,rn) .cfi_register ro, rn
# define CFI_RESTORE(reg) .cfi_restore reg
# define CFI_PUSH(reg) \
CFI_ADJUST_CFA_OFFSET(8); CFI_REL_OFFSET(reg, 0)
# define CFI_POP(reg) \
CFI_ADJUST_CFA_OFFSET(-8); CFI_RESTORE(reg)
# define CFI_POP_TMP_REG() \
CFI_ADJUST_CFA_OFFSET(-8);
# define CFI_LEAVE() \
CFI_ADJUST_CFA_OFFSET(-8); CFI_DEF_CFA_REGISTER(%rsp)
/* CFA expressions are used for pointing CFA and registers to
* %rsp relative offsets. */
# define DW_REGNO_rax 0
# define DW_REGNO_rdx 1
# define DW_REGNO_rcx 2
# define DW_REGNO_rbx 3
# define DW_REGNO_rsi 4
# define DW_REGNO_rdi 5
# define DW_REGNO_rbp 6
# define DW_REGNO_rsp 7
# define DW_REGNO_r8 8
# define DW_REGNO_r9 9
# define DW_REGNO_r10 10
# define DW_REGNO_r11 11
# define DW_REGNO_r12 12
# define DW_REGNO_r13 13
# define DW_REGNO_r14 14
# define DW_REGNO_r15 15
# define DW_REGNO(reg) DW_REGNO_ ## reg
/* Fixed length encoding used for integers for now. */
# define DW_SLEB128_7BIT(value) \
0x00|((value) & 0x7f)
# define DW_SLEB128_28BIT(value) \
0x80|((value)&0x7f), \
0x80|(((value)>>7)&0x7f), \
0x80|(((value)>>14)&0x7f), \
0x00|(((value)>>21)&0x7f)
# define CFI_CFA_ON_STACK(rsp_offs,cfa_depth) \
.cfi_escape \
0x0f, /* DW_CFA_def_cfa_expression */ \
DW_SLEB128_7BIT(11), /* length */ \
0x77, /* DW_OP_breg7, rsp + constant */ \
DW_SLEB128_28BIT(rsp_offs), \
0x06, /* DW_OP_deref */ \
0x23, /* DW_OP_plus_constu */ \
DW_SLEB128_28BIT((cfa_depth)+8)
# define CFI_REG_ON_STACK(reg,rsp_offs) \
.cfi_escape \
0x10, /* DW_CFA_expression */ \
DW_SLEB128_7BIT(DW_REGNO(reg)), \
DW_SLEB128_7BIT(5), /* length */ \
0x77, /* DW_OP_breg7, rsp + constant */ \
DW_SLEB128_28BIT(rsp_offs)
#else
# define CFI_STARTPROC()
# define CFI_ENDPROC()
# define CFI_REMEMBER_STATE()
# define CFI_RESTORE_STATE()
# define CFI_ADJUST_CFA_OFFSET(off)
# define CFI_REL_OFFSET(reg,off)
# define CFI_DEF_CFA_REGISTER(reg)
# define CFI_REGISTER(ro,rn)
# define CFI_RESTORE(reg)
# define CFI_PUSH(reg)
# define CFI_POP(reg)
# define CFI_POP_TMP_REG()
# define CFI_LEAVE()
# define CFI_CFA_ON_STACK(rsp_offs,cfa_depth)
# define CFI_REG_ON_STACK(reg,rsp_offs)
#endif
#ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS
# define ENTER_SYSV_FUNC_PARAMS_0_4 \
pushq %rdi; \
CFI_PUSH(%rdi); \
pushq %rsi; \
CFI_PUSH(%rsi); \
movq %rcx, %rdi; \
movq %rdx, %rsi; \
movq %r8, %rdx; \
movq %r9, %rcx; \
# define ENTER_SYSV_FUNC_PARAMS_5 \
ENTER_SYSV_FUNC_PARAMS_0_4; \
movq 0x38(%rsp), %r8;
# define ENTER_SYSV_FUNC_PARAMS_6 \
ENTER_SYSV_FUNC_PARAMS_5; \
movq 0x40(%rsp), %r9;
# define EXIT_SYSV_FUNC \
popq %rsi; \
CFI_POP(%rsi); \
popq %rdi; \
CFI_POP(%rdi);
#else
# define ENTER_SYSV_FUNC_PARAMS_0_4
# define ENTER_SYSV_FUNC_PARAMS_5
# define ENTER_SYSV_FUNC_PARAMS_6
# define EXIT_SYSV_FUNC
#endif
/* 'ret' instruction replacement for straight-line speculation mitigation. */
#define ret_spec_stop \
ret; int3;
/* This prevents speculative execution on old AVX512 CPUs, to prevent
* speculative execution to AVX512 code. The vpopcntb instruction is
* available on newer CPUs that do not suffer from significant frequency
* drop when 512-bit vectors are utilized. */
#define spec_stop_avx512 \
vpxord %ymm16, %ymm16, %ymm16; \
vpopcntb %xmm16, %xmm16; /* Supported only by newer AVX512 CPUs. */ \
vpxord %ymm16, %ymm16, %ymm16;
#define spec_stop_avx512_intel_syntax \
vpxord ymm16, ymm16, ymm16; \
vpopcntb xmm16, xmm16; /* Supported only by newer AVX512 CPUs. */ \
vpxord ymm16, ymm16, ymm16;
#endif /* GCRY_ASM_COMMON_AMD64_H */

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