ports/sysdeps/tile/jmpbuf-offsets.h

   1 /* Copyright (C) 2011-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   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
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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 /* We don't use most of these symbols; they are here for documentation. */
  20 #define JB_R30  0
  21 #define JB_R31  1
  22 #define JB_R32  2
  23 #define JB_R33  3
  24 #define JB_R34  4
  25 #define JB_R35  5
  26 #define JB_R36  6
  27 #define JB_R37  7
  28 #define JB_R38  8
  29 #define JB_R39  9
  30 #define JB_R40  10
  31 #define JB_R41  11
  32 #define JB_R42  12
  33 #define JB_R43  13
  34 #define JB_R44  14
  35 #define JB_R45  15
  36 #define JB_R46  16
  37 #define JB_R47  17
  38 #define JB_R48  18
  39 #define JB_R49  19
  40 #define JB_R50  20
  41 #define JB_R51  21
  42 #define JB_FP   22  /* r52 */
  43 #define JB_TP   23  /* r53 */
  44 #define JB_SP   24  /* r54 */
  45 #define JB_PC   25  /* normally LR, r55 */
  46 #define JB_ICS  26  /* interrupt critical section bit */
  47
  48 /* We save space for some extra state to accommodate future changes.  */
  49 #define JB_LEN  32  /* number of words */
  50
  51 #define JB_SIZE (JB_LEN * REGSIZE)
  52
  53 /* Helper macro used by all the setjmp/longjmp assembly code. */
  54 #define FOR_EACH_CALLEE_SAVED_REG(f)                              \
  55   .no_require_canonical_reg_names;                f(r30); f(r31); \
  56   f(r32); f(r33); f(r34); f(r35); f(r36); f(r37); f(r38); f(r39); \
  57   f(r40); f(r41); f(r42); f(r43); f(r44); f(r45); f(r46); f(r47); \
  58   f(r48); f(r49); f(r50); f(r51); f(r52); f(r53); f(r54); f(r55)
  59
  60 /* Helper for generic ____longjmp_chk(). */
  61 #define JB_FRAME_ADDRESS(buf) \
  62   ((void *) (unsigned long) (buf[JB_SP]))