-/* Macro defintions for i386.
- Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+/* Macro definitions for i386, Unix System V.
+ Copyright 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+#if !defined (TM_I386V_H)
+#define TM_I386V_H 1
+
/*
* Changes for 80386 by Pace Willisson (pace@prep.ai.mit.edu)
* July 1988
* to run an inferior, and when we finally get to
* the inferior code. This is 2 on most implementations.
*/
+#ifndef START_INFERIOR_TRAPS_EXPECTED
#define START_INFERIOR_TRAPS_EXPECTED 4
+#endif
/* Offset from address of function to start of its code.
Zero on most machines. */
#define SKIP_PROLOGUE(frompc) {(frompc) = i386_skip_prologue((frompc));}
+extern int
+i386_skip_prologue PARAMS ((int));
+
/* Immediately after a function call, return the saved pc.
Can't always go through the frames for this because on some machines
the new frame is not set up until the new function executes
This is often the number of bytes in BREAKPOINT
but not always. */
+#ifndef DECR_PC_AFTER_BREAK
#define DECR_PC_AFTER_BREAK 1
+#endif
/* Nonzero if instruction at PC is a return instruction. */
/* Convert data from raw format for register REGNUM
to virtual format for register REGNUM. */
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) {bcopy ((FROM), (TO), 4);}
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
+ {memcpy ((TO), (FROM), 4);}
/* Convert data from virtual format for register REGNUM
to raw format for register REGNUM. */
-#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) {bcopy ((FROM), (TO), 4);}
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
+ {memcpy ((TO), (FROM), 4);}
/* Return the GDB type object for the "standard" data type
of data in register N. */
#define STORE_STRUCT_RETURN(ADDR, SP) \
{ (SP) -= sizeof (ADDR); \
- write_memory ((SP), &(ADDR), sizeof (ADDR)); }
+ write_memory ((SP), (char *) &(ADDR), sizeof (ADDR)); }
/* 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. */
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
- bcopy (REGBUF, VALBUF, TYPE_LENGTH (TYPE))
+ memcpy ((VALBUF), (REGBUF), TYPE_LENGTH (TYPE))
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format. */
(its caller). */
/* FRAME_CHAIN takes a frame's nominal address
- and produces the frame's chain-pointer.
-
- FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
- and produces the nominal address of the caller frame.
-
- However, if FRAME_CHAIN_VALID returns zero,
- it means the given frame is the outermost one and has no caller.
- In that case, FRAME_CHAIN_COMBINE is not used. */
+ and produces the frame's chain-pointer. */
#define FRAME_CHAIN(thisframe) \
- (outside_startup_file ((thisframe)->pc) ? \
+ (!inside_entry_file ((thisframe)->pc) ? \
read_memory_integer ((thisframe)->frame, 4) :\
0)
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe))))
-
-#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
-
/* Define other aspects of the stack frame. */
/* A macro that tells us whether the function invocation represented
#define FRAME_NUM_ARGS(numargs, fi) (numargs) = i386_frame_num_args(fi)
+#ifdef __STDC__ /* Forward decl's for prototypes */
+struct frame_info;
+struct frame_saved_regs;
+#endif
+
+extern int
+i386_frame_num_args PARAMS ((struct frame_info *));
+
/* Return number of bytes at start of arglist that are not really args. */
#define FRAME_ARGS_SKIP 8
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
{ i386_frame_find_saved_regs ((frame_info), &(frame_saved_regs)); }
+extern void
+i386_frame_find_saved_regs PARAMS ((struct frame_info *,
+ struct frame_saved_regs *));
+
\f
/* Things needed for making the inferior call functions. */
#define PUSH_DUMMY_FRAME { i386_push_dummy_frame (); }
+extern void
+i386_push_dummy_frame PARAMS ((void));
+
/* Discard from the stack the innermost frame, restoring all registers. */
#define POP_FRAME { i386_pop_frame (); }
+extern void
+i386_pop_frame PARAMS ((void));
+
/* this is
* call 11223344 (32 bit relative)
* int3
*((char *)(dummyname) + 3) = ((delta >> 16) & 0xff); \
*((char *)(dummyname) + 4) = ((delta >> 24) & 0xff); \
}
+
+extern void
+print_387_control_word PARAMS ((unsigned int));
+
+extern void
+print_387_status_word PARAMS ((unsigned int));
+
+/* Offset from SP to first arg on stack at first instruction of a function */
+
+#define SP_ARG0 (1 * 4)
+
+#endif /* !defined (TM_I386V_H) */
projects / deliverable / binutils-gdb.git / blobdiff