22ba8cf20b
config/i386/tm-go32.h, config/i386/tm-i386gnu.h, config/i386/tm-i386sol2.h, config/i386/tm-i386v4.h, config/i386/tm-linux.h, config/i386/tm-nbsd.h, config/i386/tm-obsd.h (HAVE_I387_REGS): Remove define. * config/i386/tm-i386.h: Unconditionally define FLOAT_INFO.
215 lines
7.3 KiB
C
215 lines
7.3 KiB
C
/* Macro definitions for GDB on an Intel i[345]86.
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Copyright 1995, 1996, 1998, 1999, 2000, 2001
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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_I386_H
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#define TM_I386_H 1
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#define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
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#include "regcache.h"
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/* Forward declarations for prototypes. */
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struct frame_info;
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struct frame_saved_regs;
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struct value;
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struct type;
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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#define FUNCTION_START_OFFSET 0
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/* Advance PC across any function entry prologue instructions to reach some
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"real" code. */
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#define SKIP_PROLOGUE(frompc) (i386_skip_prologue (frompc))
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extern int i386_skip_prologue (int);
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/* Stack grows downward. */
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#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
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/* Sequence of bytes for breakpoint instruction. */
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#define BREAKPOINT {0xcc}
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/* Amount PC must be decremented by after a breakpoint. This is often the
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number of bytes in BREAKPOINT but not always. */
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#define DECR_PC_AFTER_BREAK 1
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/* Return the GDB type object for the "standard" data type of data in
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register REGNUM. */
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#define REGISTER_VIRTUAL_TYPE(regnum) i386_register_virtual_type (regnum)
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extern struct type *i386_register_virtual_type (int regnum);
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/* Return true iff register REGNUM's virtual format is different from
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its raw format. */
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#define REGISTER_CONVERTIBLE(regnum) i386_register_convertible (regnum)
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extern int i386_register_convertible (int regnum);
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/* Convert data from raw format for register REGNUM in buffer FROM to
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virtual format with type TYPE in buffer TO. */
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#define REGISTER_CONVERT_TO_VIRTUAL(regnum, type, from, to) \
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i386_register_convert_to_virtual ((regnum), (type), (from), (to))
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extern void i386_register_convert_to_virtual (int regnum, struct type *type,
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char *from, char *to);
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/* Convert data from virtual format with type TYPE in buffer FROM to
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raw format for register REGNUM in buffer TO. */
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#define REGISTER_CONVERT_TO_RAW(type, regnum, from, to) \
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i386_register_convert_to_raw ((type), (regnum), (from), (to))
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extern void i386_register_convert_to_raw (struct type *type, int regnum,
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char *from, char *to);
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/* Print out the i387 floating point state. */
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extern void i387_float_info (void);
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#define FLOAT_INFO { i387_float_info (); }
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#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
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i386_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr))
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extern CORE_ADDR i386_push_arguments (int nargs, struct value **args,
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CORE_ADDR sp, int struct_return,
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CORE_ADDR struct_addr);
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/* Store the address of the place in which to copy the structure the
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subroutine will return. This is called from call_function. */
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#define STORE_STRUCT_RETURN(addr, sp) \
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i386_store_struct_return ((addr), (sp))
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extern void i386_store_struct_return (CORE_ADDR addr, CORE_ADDR sp);
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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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#define DEPRECATED_EXTRACT_RETURN_VALUE(type, regbuf, valbuf) \
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i386_extract_return_value ((type), (regbuf), (valbuf))
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extern void i386_extract_return_value (struct type *type, char *regbuf,
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char *valbuf);
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/* Write into the appropriate registers a function return value stored
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in VALBUF of type TYPE, given in virtual format. */
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#define STORE_RETURN_VALUE(type, valbuf) \
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i386_store_return_value ((type), (valbuf))
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extern void i386_store_return_value (struct type *type, char *valbuf);
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/* Extract from an array REGBUF containing the (raw) register state
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the address in which a function should return its structure value,
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as a CORE_ADDR. */
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#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regbuf) \
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i386_extract_struct_value_address ((regbuf))
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extern CORE_ADDR i386_extract_struct_value_address (char *regbuf);
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/* Determine whether the function invocation represented by FRAME does
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not have a from on the stack associated with it. If it does not,
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return non-zero, otherwise return zero. */
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#define FRAMELESS_FUNCTION_INVOCATION(frame) \
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i386_frameless_function_invocation (frame)
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extern int i386_frameless_function_invocation (struct frame_info *frame);
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#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
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#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
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/* Return number of args passed to a frame. Can return -1, meaning no way
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to tell, which is typical now that the C compiler delays popping them. */
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#define FRAME_NUM_ARGS(fi) (i386_frame_num_args(fi))
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extern int i386_frame_num_args (struct frame_info *);
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/* Return number of bytes at start of arglist that are not really args. */
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#define FRAME_ARGS_SKIP 8
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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This includes special registers such as pc and fp saved in special
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ways in the stack frame. sp is even more special:
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the address we return for it IS the sp for the next frame. */
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extern void i386_frame_init_saved_regs (struct frame_info *);
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#define FRAME_INIT_SAVED_REGS(FI) i386_frame_init_saved_regs (FI)
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/* Things needed for making the inferior call functions. */
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/* "An argument's size is increased, if necessary, to make it a
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multiple of [32 bit] words. This may require tail padding,
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depending on the size of the argument" - from the x86 ABI. */
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#define PARM_BOUNDARY 32
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/* Push an empty stack frame, to record the current PC, etc. */
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#define PUSH_DUMMY_FRAME { i386_push_dummy_frame (); }
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extern void i386_push_dummy_frame (void);
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/* Discard from the stack the innermost frame, restoring all registers. */
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#define POP_FRAME { i386_pop_frame (); }
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extern void i386_pop_frame (void);
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/* this is
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* call 11223344 (32 bit relative)
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* int3
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*/
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#define CALL_DUMMY { 0x223344e8, 0xcc11 }
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#define CALL_DUMMY_LENGTH 8
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#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
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#define CALL_DUMMY_BREAKPOINT_OFFSET 5
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/* Insert the specified number of args and function address
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into a call sequence of the above form stored at DUMMYNAME. */
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#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
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i386_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
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extern void i386_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun,
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int nargs, struct value **args,
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struct type *type, int gcc_p);
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/* FIXME: kettenis/2000-06-12: These do not belong here. */
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extern void print_387_control_word (unsigned int);
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extern void print_387_status_word (unsigned int);
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/* Offset from SP to first arg on stack at first instruction of a function */
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#define SP_ARG0 (1 * 4)
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#endif /* ifndef TM_I386_H */
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