sysdeps/unix/sysv/linux/aarch64/ucontext-internal.h

   1 /* Copyright (C) 2009-2018 Free Software Foundation, Inc.
   2
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #define SP_ALIGN_SIZE       15
  20
  21 #define SP_ALIGN_MASK      ~15
  22
  23 /* Size of an X regiser in bytes. */
  24 #define SZREG                8
  25
  26 /* Size of a V register in bytes. */
  27 #define SZVREG              16
  28
  29 /* Number of integer parameter passing registers. */
  30 #define NUMXREGARGS          8
  31
  32 /* Number of FP parameter passing registers. */
  33 #define NUMDREGARGS          8
  34
  35 /* Size of named integer argument in bytes when passed on the
  36    stack.  */
  37 #define SIZEOF_NAMED_INT     4
  38
  39 /* Size of an anonymous integer argument in bytes when passed on the
  40    stack.  */
  41 #define SIZEOF_ANONYMOUS_INT 8
  42
  43 #define oX21 (oX0 + 21*8)
  44 #define oFP  (oX0 + 29*8)
  45 #define oLR  (oX0 + 30*8)