| /* Macro definitions for i386, Unix System V. |
| Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1998, 1999, |
| 2000 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #ifndef TM_I386V_H |
| #define TM_I386V_H 1 |
| |
| /* First pick up the generic *86 target file. */ |
| |
| #include "regcache.h" |
| #include "i386/tm-i386.h" |
| |
| /* Number of traps that happen between exec'ing the shell to run an |
| inferior, and when we finally get to the inferior code. This is |
| 2 on most implementations. Override here to 4. */ |
| |
| #undef START_INFERIOR_TRAPS_EXPECTED |
| #define START_INFERIOR_TRAPS_EXPECTED 4 |
| |
| /* Extract from an array REGBUF containing the (raw) register state |
| a function return value of type TYPE, and copy that, in virtual format, |
| into VALBUF. */ |
| |
| #undef EXTRACT_RETURN_VALUE |
| #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ |
| memcpy ((VALBUF), (REGBUF), TYPE_LENGTH (TYPE)) |
| |
| /* Write into appropriate registers a function return value |
| of type TYPE, given in virtual format. */ |
| |
| #undef STORE_RETURN_VALUE |
| #define STORE_RETURN_VALUE(TYPE,VALBUF) \ |
| write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)) |
| |
| |
| /* Describe the pointer in each stack frame to the previous stack frame |
| (its caller). */ |
| |
| /* FRAME_CHAIN takes a frame's nominal address |
| and produces the frame's chain-pointer. */ |
| |
| #undef FRAME_CHAIN |
| #define FRAME_CHAIN(thisframe) \ |
| (!inside_entry_file ((thisframe)->pc) ? \ |
| read_memory_integer ((thisframe)->frame, 4) :\ |
| 0) |
| |
| /* Define other aspects of the stack frame. */ |
| |
| /* A macro that tells us whether the function invocation represented |
| by FI does not have a frame on the stack associated with it. If it |
| does not, FRAMELESS is set to 1, else 0. */ |
| |
| #undef FRAMELESS_FUNCTION_INVOCATION |
| #define FRAMELESS_FUNCTION_INVOCATION(FI) \ |
| (frameless_look_for_prologue (FI)) |
| |
| #undef FRAME_SAVED_PC |
| #define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) |
| |
| /* Return number of args passed to a frame. |
| Can return -1, meaning no way to tell. */ |
| |
| #undef FRAME_NUM_ARGS |
| #define FRAME_NUM_ARGS(fi) (-1) |
| |
| /* Forward decl's for prototypes */ |
| struct frame_info; |
| struct frame_saved_regs; |
| |
| extern int i386_frame_num_args (struct frame_info *); |
| |
| #endif /* ifndef TM_I386V_H */ |