gdb/config/sparc/tm-sun4os4.h

   1 /* Macro definitions for GDB for a Sun 4 running sunos 4.
   2    Copyright 1989, 1992 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "sparc/tm-sparc.h"
  21 #include "tm-sunos.h"
  22
  23 /* Do variables in the debug stabs occur after the N_LBRAC or before it?
  24    acc: after, gcc: before, SunOS4 /bin/cc: before.  */
  25
  26 #define VARIABLES_INSIDE_BLOCK(desc, gcc_p) (!(gcc_p) && n_opt_found)
  27
  28 /* For acc, there's no need to correct LBRAC entries by guessing how
  29    they should work.  In fact, this is harmful because the LBRAC
  30    entries now all appear at the end of the function, not intermixed
  31    with the SLINE entries.
  32
  33    For binary from SunOS4 /bin/cc, need to correct LBRAC's.
  34
  35    For gcc, doesn't matter, attempting the correction is harmless.  */
  36
  37 #define SUN_FIXED_LBRAC_BUG (n_opt_found)
  38
  39 /* Offsets into jmp_buf.  Not defined by Sun, but at least documented in a
  40    comment in <machine/setjmp.h>! */
  41
  42 #define JB_ELEMENT_SIZE 4       /* Size of each element in jmp_buf */
  43
  44 #define JB_ONSSTACK 0
  45 #define JB_SIGMASK 1
  46 #define JB_SP 2
  47 #define JB_PC 3
  48 #define JB_NPC 4
  49 #define JB_PSR 5
  50 #define JB_G1 6
  51 #define JB_O0 7
  52 #define JB_WBCNT 8
  53
  54 /* Figure out where the longjmp will land.  We expect that we have just entered
  55    longjmp and haven't yet setup the stack frame, so the args are still in the
  56    output regs.  %o0 (O0_REGNUM) points at the jmp_buf structure from which we
  57    extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
  58    This routine returns true on success */
  59
  60 extern int
  61 get_longjmp_target PARAMS ((CORE_ADDR *));
  62
  63 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)