gdb/config/m68k/tm-delta68.h

   1 /* Target definitions for delta68.
   2    Copyright 1993, 1994, 1998, 1999, 2000 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., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 struct frame_info;
  22
  23 #include "regcache.h"
  24
  25 /* Define BPT_VECTOR if it is different than the default.
  26    This is the vector number used by traps to indicate a breakpoint. */
  27
  28 #define BPT_VECTOR 0x1
  29
  30 #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled%"
  31 #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled%"
  32
  33 /* Amount PC must be decremented by after a breakpoint.
  34    On the Delta, the kernel decrements it for us.  */
  35
  36 #define DECR_PC_AFTER_BREAK 0
  37
  38 /* Not sure what happens if we try to store this register, but
  39    phdm@info.ucl.ac.be says we need this define.  */
  40
  41 #define CANNOT_STORE_REGISTER(regno)    (regno == FPI_REGNUM)
  42
  43 /* Extract from an array REGBUF containing the (raw) register state
  44    a function return value of type TYPE, and copy that, in virtual format,
  45    into VALBUF.  */
  46
  47 /* When it returns a float/double value, use fp0 in sysV68.  */
  48 /* When it returns a pointer value, use a0 in sysV68.  */
  49
  50 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF)             \
  51   if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)                                \
  52     DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE,                   \
  53                                  &REGBUF[DEPRECATED_REGISTER_BYTE (FP0_REGNUM)],        \
  54                                  VALBUF);                               \
  55   else                                                                  \
  56     memcpy ((VALBUF),                                                   \
  57             (char *) ((REGBUF) +                                        \
  58                       (TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 :       \
  59                        (TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)))), \
  60             TYPE_LENGTH(TYPE))
  61
  62 /* Write into appropriate registers a function return value
  63    of type TYPE, given in virtual format.  */
  64
  65 /* When it returns a float/double value, use fp0 in sysV68.  */
  66 /* When it returns a pointer value, use a0 in sysV68.  */
  67
  68 #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
  69   if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)                                \
  70       {                                                                 \
  71         char raw_buf[REGISTER_RAW_SIZE (FP0_REGNUM)];                   \
  72         DEPRECATED_REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buf); \
  73         deprecated_write_register_bytes (DEPRECATED_REGISTER_BYTE (FP0_REGNUM),         \
  74                               raw_buf, REGISTER_RAW_SIZE (FP0_REGNUM)); \
  75       }                                                                 \
  76   else                                                                  \
  77     deprecated_write_register_bytes ((TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : 0), \
  78                           VALBUF, TYPE_LENGTH (TYPE))
  79
  80 /* Return number of args passed to a frame.
  81    Can return -1, meaning no way to tell.  */
  82
  83 extern int delta68_frame_num_args (struct frame_info *fi);
  84 #define FRAME_NUM_ARGS(fi) (delta68_frame_num_args ((fi)))
  85
  86 /* On M68040 versions of sysV68 R3V7.1, ptrace(PT_WRITE_I) does not clear
  87    the processor's instruction cache as it should.  */
  88 #define CLEAR_INSN_CACHE()      clear_insn_cache()
  89
  90 #include "m68k/tm-m68k.h"
  91
  92 /* Extract from an array REGBUF containing the (raw) register state
  93    the address in which a function should return its structure value,
  94    as a CORE_ADDR (or an expression that can be used as one).  */
  95
  96 #undef DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS
  97 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF)\
  98         (*(CORE_ADDR *)((char*)(REGBUF) + 8 * 4))
  99
 100 extern int delta68_in_sigtramp (CORE_ADDR pc, char *name);
 101 #define IN_SIGTRAMP(pc,name) delta68_in_sigtramp (pc, name)
 102
 103 extern CORE_ADDR delta68_frame_saved_pc (struct frame_info *fi);
 104 #undef DEPRECATED_FRAME_SAVED_PC
 105 #define DEPRECATED_FRAME_SAVED_PC(fi) delta68_frame_saved_pc (fi)
 106
 107 extern CORE_ADDR delta68_frame_args_address (struct frame_info *fi);
 108 #undef DEPRECATED_FRAME_ARGS_ADDRESS
 109 #define DEPRECATED_FRAME_ARGS_ADDRESS(fi) delta68_frame_args_address (fi)