Edit: /usr/include/sys/reg.h (1826B)
/* Copyright (C) 2001-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, see
. */
#ifndef _SYS_REG_H
#define _SYS_REG_H 1
#ifdef __x86_64__
/* Index into an array of 8 byte longs returned from ptrace for
location of the users' stored general purpose registers. */
# define R15 0
# define R14 1
# define R13 2
# define R12 3
# define RBP 4
# define RBX 5
# define R11 6
# define R10 7
# define R9 8
# define R8 9
# define RAX 10
# define RCX 11
# define RDX 12
# define RSI 13
# define RDI 14
# define ORIG_RAX 15
# define RIP 16
# define CS 17
# define EFLAGS 18
# define RSP 19
# define SS 20
# define FS_BASE 21
# define GS_BASE 22
# define DS 23
# define ES 24
# define FS 25
# define GS 26
#else
/* Index into an array of 4 byte integers returned from ptrace for
* location of the users' stored general purpose registers. */
# define EBX 0
# define ECX 1
# define EDX 2
# define ESI 3
# define EDI 4
# define EBP 5
# define EAX 6
# define DS 7
# define ES 8
# define FS 9
# define GS 10
# define ORIG_EAX 11
# define EIP 12
# define CS 13
# define EFL 14
# define UESP 15
# define SS 16
#endif
#endif