gdb/config/sparc/tm-sp64.h

   1 /* Target machine sub-parameters for SPARC64, for GDB, the GNU debugger.
   2    This is included by other tm-*.h files to define SPARC64 cpu-related info.
   3    Copyright 1994, 1995, 1996, 1998, 1999, 2000
   4    Free Software Foundation, Inc.
   5    This is (obviously) based on the SPARC Vn (n<9) port.
   6    Contributed by Doug Evans (dje@cygnus.com).
   7    Further modified by Bob Manson (manson@cygnus.com).
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 59 Temple Place - Suite 330,
  24    Boston, MA 02111-1307, USA.  */
  25
  26 struct type;
  27
  28 #ifndef GDB_TARGET_IS_SPARC64
  29 #define GDB_TARGET_IS_SPARC64 1
  30 #endif
  31
  32 #include "sparc/tm-sparc.h"
  33
  34 /* Eeeew. Ok, we have to assume (for now) that the processor really is
  35    in sparc64 mode. While this is the same instruction sequence as
  36    on the Sparc, the stack frames are offset by +2047 (and the arguments
  37    are 8 bytes instead of 4). */
  38 /* Instructions are:
  39    std  %f10, [ %fp + 0x7a7 ]
  40    std  %f8, [ %fp + 0x79f ]
  41    std  %f6, [ %fp + 0x797 ]
  42    std  %f4, [ %fp + 0x78f ]
  43    std  %f2, [ %fp + 0x787 ]
  44    std  %f0, [ %fp + 0x77f ]
  45    std  %g6, [ %fp + 0x777 ]
  46    std  %g4, [ %fp + 0x76f ]
  47    std  %g2, [ %fp + 0x767 ]
  48    std  %g0, [ %fp + 0x75f ]
  49    std  %fp, [ %fp + 0x757 ]
  50    std  %i4, [ %fp + 0x74f ]
  51    std  %i2, [ %fp + 0x747 ]
  52    std  %i0, [ %fp + 0x73f ]
  53    nop
  54    nop
  55    nop
  56    nop
  57    rd  %tbr, %o0
  58    st  %o0, [ %fp + 0x72b ]
  59    rd  %tpc, %o0
  60    st  %o0, [ %fp + 0x727 ]
  61    rd  %psr, %o0
  62    st  %o0, [ %fp + 0x723 ]
  63    rd  %y, %o0
  64    st  %o0, [ %fp + 0x71f ]
  65    ldx  [ %sp + 0x8a7 ], %o5
  66    ldx  [ %sp + 0x89f ], %o4
  67    ldx  [ %sp + 0x897 ], %o3
  68    ldx  [ %sp + 0x88f ], %o2
  69    ldx  [ %sp + 0x887 ], %o1
  70    call  %g0
  71    ldx  [ %sp + 0x87f ], %o0
  72    nop
  73    ta  1
  74    nop
  75    nop
  76  */
  77
  78 /* Offsets into jmp_buf.
  79    FIXME: This was borrowed from the v8 stuff and will probably have to change
  80    for v9.  */
  81
  82 #define JB_ELEMENT_SIZE 8       /* Size of each element in jmp_buf */
  83
  84 #define JB_ONSSTACK 0
  85 #define JB_SIGMASK 1
  86 #define JB_SP 2
  87 #define JB_PC 3
  88 #define JB_NPC 4
  89 #define JB_PSR 5
  90 #define JB_G1 6
  91 #define JB_O0 7
  92 #define JB_WBCNT 8
  93
  94 /* Figure out where the longjmp will land.  We expect that we have
  95    just entered longjmp and haven't yet setup the stack frame, so the
  96    args are still in the output regs.  %o0 (O0_REGNUM) points at the
  97    jmp_buf structure from which we extract the pc (JB_PC) that we will
  98    land at.  The pc is copied into ADDR.  This routine returns true on
  99    success */
 100
 101 extern int get_longjmp_target (CORE_ADDR *);
 102
 103 #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
 104
 105 #undef TM_PRINT_INSN_MACH
 106 #define TM_PRINT_INSN_MACH bfd_mach_sparc_v9a
 107