5861a190a8
* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE): Delete. (REGISTER_CONVERT_FROM_TYPE): Delete. (mips_register_convert_to_type): Delete declaration. (mips_register_convert_from_type): Delete declaration. * linux-nat.h (struct target_ops): Declare opaque. s/Linux/Linux kernel/.
176 lines
6.9 KiB
C
176 lines
6.9 KiB
C
/* Definitions to make GDB run on a mips box under 4.3bsd.
|
|
|
|
Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
|
|
1997, 1998, 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
|
|
|
|
Contributed by Per Bothner (bothner@cs.wisc.edu) at U.Wisconsin
|
|
and by Alessandro Forin (af@cs.cmu.edu) at CMU..
|
|
|
|
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_MIPS_H
|
|
#define TM_MIPS_H 1
|
|
|
|
#define GDB_MULTI_ARCH 1
|
|
|
|
#include "regcache.h"
|
|
|
|
struct frame_info;
|
|
struct symbol;
|
|
struct type;
|
|
struct value;
|
|
|
|
#include <bfd.h>
|
|
#include "coff/sym.h" /* Needed for PDR below. */
|
|
#include "coff/symconst.h"
|
|
|
|
/* Return non-zero if PC points to an instruction which will cause a step
|
|
to execute both the instruction at PC and an instruction at PC+4. */
|
|
extern int mips_step_skips_delay (CORE_ADDR);
|
|
#define STEP_SKIPS_DELAY_P (1)
|
|
#define STEP_SKIPS_DELAY(pc) (mips_step_skips_delay (pc))
|
|
|
|
/* The size of a register. This is predefined in tm-mips64.h. */
|
|
|
|
#ifndef MIPS_REGSIZE
|
|
#define MIPS_REGSIZE 4
|
|
#endif
|
|
|
|
/* Initializer for an array of names for registers 32 and above.
|
|
There should be NUM_REGS-32 strings in this initializer. */
|
|
|
|
#ifndef MIPS_REGISTER_NAMES
|
|
#define MIPS_REGISTER_NAMES \
|
|
{ "sr", "lo", "hi", "bad", "cause","pc", \
|
|
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
|
|
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
|
|
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",\
|
|
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",\
|
|
"fsr", "fir", ""/*"fp"*/, "", \
|
|
"", "", "", "", "", "", "", "", \
|
|
"", "", "", "", "", "", "", "", \
|
|
}
|
|
#endif
|
|
|
|
/* Register numbers of various important registers.
|
|
Note that some of these values are "real" register numbers,
|
|
and correspond to the general registers of the machine,
|
|
and some are "phony" register numbers which are too large
|
|
to be actual register numbers as far as the user is concerned
|
|
but do serve to get the desired values when passed to read_register. */
|
|
|
|
#define ZERO_REGNUM 0 /* read-only register, always 0 */
|
|
#define V0_REGNUM 2 /* Function integer return value */
|
|
#define A0_REGNUM 4 /* Loc of first arg during a subr call */
|
|
#define T9_REGNUM 25 /* Contains address of callee in PIC */
|
|
#define SP_REGNUM 29 /* Contains address of top of stack */
|
|
#define RA_REGNUM 31 /* Contains return address value */
|
|
#define PS_REGNUM 32 /* Contains processor status */
|
|
#define HI_REGNUM 34 /* Multiple/divide temp */
|
|
#define LO_REGNUM 33 /* ... */
|
|
#define BADVADDR_REGNUM 35 /* bad vaddr for addressing exception */
|
|
#define CAUSE_REGNUM 36 /* describes last exception */
|
|
#define PC_REGNUM 37 /* Contains program counter */
|
|
#define FP0_REGNUM 38 /* Floating point register 0 (single float) */
|
|
#define FPA0_REGNUM (FP0_REGNUM+12) /* First float argument register */
|
|
#define FCRCS_REGNUM 70 /* FP control/status */
|
|
#define FCRIR_REGNUM 71 /* FP implementation/revision */
|
|
#define UNUSED_REGNUM 73 /* Never used, FIXME */
|
|
#define FIRST_EMBED_REGNUM 74 /* First CP0 register for embedded use */
|
|
#define PRID_REGNUM 89 /* Processor ID */
|
|
#define LAST_EMBED_REGNUM 89 /* Last one */
|
|
|
|
/* Index within `registers' of the first byte of the space for
|
|
register N. */
|
|
|
|
#define REGISTER_BYTE(N) ((N) * MIPS_REGSIZE)
|
|
|
|
/* Return the GDB type object for the "standard" data type of data in
|
|
register N. */
|
|
|
|
#ifndef REGISTER_VIRTUAL_TYPE
|
|
#define REGISTER_VIRTUAL_TYPE(N) \
|
|
(((N) >= FP0_REGNUM && (N) < FP0_REGNUM+32) ? builtin_type_float \
|
|
: ((N) == 32 /*SR*/) ? builtin_type_uint32 \
|
|
: ((N) >= 70 && (N) <= 89) ? builtin_type_uint32 \
|
|
: builtin_type_int)
|
|
#endif
|
|
|
|
/* Special symbol found in blocks associated with routines. We can hang
|
|
mips_extra_func_info_t's off of this. */
|
|
|
|
#define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
|
|
extern void ecoff_relocate_efi (struct symbol *, CORE_ADDR);
|
|
|
|
/* Specific information about a procedure.
|
|
This overlays the MIPS's PDR records,
|
|
mipsread.c (ab)uses this to save memory */
|
|
|
|
typedef struct mips_extra_func_info
|
|
{
|
|
long numargs; /* number of args to procedure (was iopt) */
|
|
bfd_vma high_addr; /* upper address bound */
|
|
long frame_adjust; /* offset of FP from SP (used on MIPS16) */
|
|
PDR pdr; /* Procedure descriptor record */
|
|
}
|
|
*mips_extra_func_info_t;
|
|
|
|
extern void mips_print_extra_frame_info (struct frame_info *frame);
|
|
#define PRINT_EXTRA_FRAME_INFO(fi) \
|
|
mips_print_extra_frame_info (fi)
|
|
|
|
/* It takes two values to specify a frame on the MIPS.
|
|
|
|
In fact, the *PC* is the primary value that sets up a frame. The
|
|
PC is looked up to see what function it's in; symbol information
|
|
from that function tells us which register is the frame pointer
|
|
base, and what offset from there is the "virtual frame pointer".
|
|
(This is usually an offset from SP.) On most non-MIPS machines,
|
|
the primary value is the SP, and the PC, if needed, disambiguates
|
|
multiple functions with the same SP. But on the MIPS we can't do
|
|
that since the PC is not stored in the same part of the frame every
|
|
time. This does not seem to be a very clever way to set up frames,
|
|
but there is nothing we can do about that. */
|
|
|
|
#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
|
|
extern struct frame_info *setup_arbitrary_frame (int, CORE_ADDR *);
|
|
|
|
/* These are defined in mdebugread.c and are used in mips-tdep.c */
|
|
extern CORE_ADDR sigtramp_address, sigtramp_end;
|
|
extern void fixup_sigtramp (void);
|
|
|
|
/* Defined in mips-tdep.c and used in remote-mips.c */
|
|
extern char *mips_read_processor_type (void);
|
|
|
|
/* Functions for dealing with MIPS16 call and return stubs. */
|
|
#define IGNORE_HELPER_CALL(pc) mips_ignore_helper (pc)
|
|
extern int mips_ignore_helper (CORE_ADDR pc);
|
|
|
|
/* Definitions and declarations used by mips-tdep.c and remote-mips.c */
|
|
#define MIPS_INSTLEN 4 /* Length of an instruction */
|
|
#define MIPS16_INSTLEN 2 /* Length of an instruction on MIPS16 */
|
|
#define MIPS_NUMREGS 32 /* Number of integer or float registers */
|
|
typedef unsigned long t_inst; /* Integer big enough to hold an instruction */
|
|
|
|
#endif /* TM_MIPS_H */
|
|
|
|
/* Command to set the processor type. */
|
|
extern void mips_set_processor_type_command (char *, int);
|
|
|
|
/* Single step based on where the current instruction will take us. */
|
|
extern void mips_software_single_step (enum target_signal, int);
|