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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [config/] [i386/] [tm-i386v.h] - Blame information for rev 1765

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1 106 markom
/* Macro definitions for i386, Unix System V.
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   Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#ifndef TM_I386V_H
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#define TM_I386V_H 1
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/* First pick up the generic *86 target file. */
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#include "i386/tm-i386.h"
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/* Number of traps that happen between exec'ing the shell to run an
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   inferior, and when we finally get to the inferior code.  This is
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   2 on most implementations.  Override here to 4. */
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#undef  START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 4
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#undef  STORE_STRUCT_RETURN
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#define STORE_STRUCT_RETURN(ADDR, SP) \
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  { char buf[REGISTER_SIZE];    \
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    (SP) -= sizeof (ADDR);      \
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    store_address (buf, sizeof (ADDR), ADDR);   \
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    write_memory ((SP), buf, sizeof (ADDR)); }
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/* Extract from an array REGBUF containing the (raw) register state
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   a function return value of type TYPE, and copy that, in virtual format,
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   into VALBUF.  */
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#undef  EXTRACT_RETURN_VALUE
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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  memcpy ((VALBUF), (REGBUF), TYPE_LENGTH (TYPE))
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/* Write into appropriate registers a function return value
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   of type TYPE, given in virtual format.  */
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#undef  STORE_RETURN_VALUE
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#define STORE_RETURN_VALUE(TYPE,VALBUF) \
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  write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
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/* Describe the pointer in each stack frame to the previous stack frame
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   (its caller).  */
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/* FRAME_CHAIN takes a frame's nominal address
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   and produces the frame's chain-pointer. */
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#undef  FRAME_CHAIN
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#define FRAME_CHAIN(thisframe) \
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  (!inside_entry_file ((thisframe)->pc) ? \
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   read_memory_integer ((thisframe)->frame, 4) :\
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   0)
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/* Define other aspects of the stack frame.  */
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/* A macro that tells us whether the function invocation represented
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   by FI does not have a frame on the stack associated with it.  If it
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   does not, FRAMELESS is set to 1, else 0.  */
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#undef  FRAMELESS_FUNCTION_INVOCATION
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#define FRAMELESS_FUNCTION_INVOCATION(FI) \
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  (frameless_look_for_prologue (FI))
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#undef  FRAME_SAVED_PC
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#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4))
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/* Return number of args passed to a frame.
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   Can return -1, meaning no way to tell.  */
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#undef  FRAME_NUM_ARGS
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#define FRAME_NUM_ARGS(fi) (-1)
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/* Forward decl's for prototypes */
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struct frame_info;
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struct frame_saved_regs;
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extern int
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i386_frame_num_args PARAMS ((struct frame_info *));
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#endif /* ifndef TM_I386V_H */

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