2000-04-03 02:00:32 +02:00
|
|
|
/* Dynamic architecture support for GDB, the GNU debugger.
|
2001-03-06 09:22:02 +01:00
|
|
|
Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
|
2000-04-03 02:00:32 +02:00
|
|
|
|
|
|
|
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. */
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
|
|
|
|
#if GDB_MULTI_ARCH
|
|
|
|
#include "gdbcmd.h"
|
|
|
|
#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
|
|
|
|
#else
|
|
|
|
/* Just include everything in sight so that the every old definition
|
|
|
|
of macro is visible. */
|
|
|
|
#include "gdb_string.h"
|
|
|
|
#include "symtab.h"
|
|
|
|
#include "frame.h"
|
|
|
|
#include "inferior.h"
|
|
|
|
#include "breakpoint.h"
|
|
|
|
#include "gdb_wait.h"
|
|
|
|
#include "gdbcore.h"
|
|
|
|
#include "gdbcmd.h"
|
|
|
|
#include "target.h"
|
|
|
|
#include "gdbthread.h"
|
|
|
|
#include "annotate.h"
|
|
|
|
#include "symfile.h" /* for overlay functions */
|
|
|
|
#endif
|
|
|
|
|
2000-06-08 06:00:56 +02:00
|
|
|
#include "version.h"
|
|
|
|
|
2000-06-02 03:59:13 +02:00
|
|
|
#include "floatformat.h"
|
|
|
|
|
2000-04-03 02:00:32 +02:00
|
|
|
/* Convenience macro for allocting typesafe memory. */
|
|
|
|
|
|
|
|
#ifndef XMALLOC
|
|
|
|
#define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* Use the program counter to determine the contents and size
|
|
|
|
of a breakpoint instruction. If no target-dependent macro
|
|
|
|
BREAKPOINT_FROM_PC has been defined to implement this function,
|
|
|
|
assume that the breakpoint doesn't depend on the PC, and
|
|
|
|
use the values of the BIG_BREAKPOINT and LITTLE_BREAKPOINT macros.
|
|
|
|
Return a pointer to a string of bytes that encode a breakpoint
|
|
|
|
instruction, stores the length of the string to *lenptr,
|
|
|
|
and optionally adjust the pc to point to the correct memory location
|
|
|
|
for inserting the breakpoint. */
|
|
|
|
|
|
|
|
unsigned char *
|
|
|
|
legacy_breakpoint_from_pc (CORE_ADDR * pcptr, int *lenptr)
|
|
|
|
{
|
|
|
|
/* {BIG_,LITTLE_}BREAKPOINT is the sequence of bytes we insert for a
|
|
|
|
breakpoint. On some machines, breakpoints are handled by the
|
|
|
|
target environment and we don't have to worry about them here. */
|
|
|
|
#ifdef BIG_BREAKPOINT
|
|
|
|
if (TARGET_BYTE_ORDER == BIG_ENDIAN)
|
|
|
|
{
|
|
|
|
static unsigned char big_break_insn[] = BIG_BREAKPOINT;
|
|
|
|
*lenptr = sizeof (big_break_insn);
|
|
|
|
return big_break_insn;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef LITTLE_BREAKPOINT
|
|
|
|
if (TARGET_BYTE_ORDER != BIG_ENDIAN)
|
|
|
|
{
|
|
|
|
static unsigned char little_break_insn[] = LITTLE_BREAKPOINT;
|
|
|
|
*lenptr = sizeof (little_break_insn);
|
|
|
|
return little_break_insn;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef BREAKPOINT
|
|
|
|
{
|
|
|
|
static unsigned char break_insn[] = BREAKPOINT;
|
|
|
|
*lenptr = sizeof (break_insn);
|
|
|
|
return break_insn;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
*lenptr = 0;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
generic_frameless_function_invocation_not (struct frame_info *fi)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-04-20 01:22:14 +02:00
|
|
|
int
|
|
|
|
generic_return_value_on_stack_not (struct type *type)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-04-03 02:00:32 +02:00
|
|
|
char *
|
|
|
|
legacy_register_name (int i)
|
|
|
|
{
|
|
|
|
#ifdef REGISTER_NAMES
|
|
|
|
static char *names[] = REGISTER_NAMES;
|
|
|
|
if (i < 0 || i >= (sizeof (names) / sizeof (*names)))
|
|
|
|
return NULL;
|
|
|
|
else
|
|
|
|
return names[i];
|
|
|
|
#else
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"legacy_register_name: called.");
|
2000-04-03 02:00:32 +02:00
|
|
|
return NULL;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
#if defined (CALL_DUMMY)
|
|
|
|
LONGEST legacy_call_dummy_words[] = CALL_DUMMY;
|
|
|
|
#else
|
|
|
|
LONGEST legacy_call_dummy_words[1];
|
|
|
|
#endif
|
|
|
|
int legacy_sizeof_call_dummy_words = sizeof (legacy_call_dummy_words);
|
|
|
|
|
|
|
|
void
|
|
|
|
generic_remote_translate_xfer_address (CORE_ADDR gdb_addr, int gdb_len,
|
|
|
|
CORE_ADDR * rem_addr, int *rem_len)
|
|
|
|
{
|
|
|
|
*rem_addr = gdb_addr;
|
|
|
|
*rem_len = gdb_len;
|
|
|
|
}
|
|
|
|
|
2000-04-29 10:55:45 +02:00
|
|
|
int
|
|
|
|
generic_prologue_frameless_p (CORE_ADDR ip)
|
|
|
|
{
|
|
|
|
#ifdef SKIP_PROLOGUE_FRAMELESS_P
|
|
|
|
return ip == SKIP_PROLOGUE_FRAMELESS_P (ip);
|
|
|
|
#else
|
|
|
|
return ip == SKIP_PROLOGUE (ip);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-05-15 05:56:30 +02:00
|
|
|
/* Helper functions for INNER_THAN */
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs)
|
2000-05-15 05:56:30 +02:00
|
|
|
{
|
|
|
|
return (lhs < rhs);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs)
|
2000-05-15 05:56:30 +02:00
|
|
|
{
|
|
|
|
return (lhs > rhs);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-06-02 03:59:13 +02:00
|
|
|
/* Helper functions for TARGET_{FLOAT,DOUBLE}_FORMAT */
|
|
|
|
|
|
|
|
const struct floatformat *
|
|
|
|
default_float_format (struct gdbarch *gdbarch)
|
|
|
|
{
|
|
|
|
#if GDB_MULTI_ARCH
|
|
|
|
int byte_order = gdbarch_byte_order (gdbarch);
|
|
|
|
#else
|
|
|
|
int byte_order = TARGET_BYTE_ORDER;
|
|
|
|
#endif
|
|
|
|
switch (byte_order)
|
|
|
|
{
|
|
|
|
case BIG_ENDIAN:
|
|
|
|
return &floatformat_ieee_single_big;
|
|
|
|
case LITTLE_ENDIAN:
|
|
|
|
return &floatformat_ieee_single_little;
|
|
|
|
default:
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"default_float_format: bad byte order");
|
2000-06-02 03:59:13 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
const struct floatformat *
|
|
|
|
default_double_format (struct gdbarch *gdbarch)
|
|
|
|
{
|
|
|
|
#if GDB_MULTI_ARCH
|
|
|
|
int byte_order = gdbarch_byte_order (gdbarch);
|
|
|
|
#else
|
|
|
|
int byte_order = TARGET_BYTE_ORDER;
|
|
|
|
#endif
|
|
|
|
switch (byte_order)
|
|
|
|
{
|
|
|
|
case BIG_ENDIAN:
|
|
|
|
return &floatformat_ieee_double_big;
|
|
|
|
case LITTLE_ENDIAN:
|
|
|
|
return &floatformat_ieee_double_little;
|
|
|
|
default:
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"default_double_format: bad byte order");
|
2000-06-02 03:59:13 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-06-06 08:45:19 +02:00
|
|
|
/* Misc helper functions for targets. */
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
frame_num_args_unknown (struct frame_info *fi)
|
2000-06-06 08:45:19 +02:00
|
|
|
{
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
generic_register_convertible_not (int num)
|
2000-06-06 08:45:19 +02:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2000-06-07 06:38:02 +02:00
|
|
|
|
2000-08-02 13:05:50 +02:00
|
|
|
int
|
|
|
|
default_register_sim_regno (int num)
|
|
|
|
{
|
|
|
|
return num;
|
|
|
|
}
|
|
|
|
|
2000-10-26 09:41:25 +02:00
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
default_convert_from_func_ptr_addr (CORE_ADDR addr)
|
|
|
|
{
|
|
|
|
return addr;
|
|
|
|
}
|
|
|
|
|
2000-12-04 05:01:16 +01:00
|
|
|
int
|
|
|
|
no_op_reg_to_regnum (int reg)
|
|
|
|
{
|
|
|
|
return reg;
|
|
|
|
}
|
|
|
|
|
2001-01-02 21:21:53 +01:00
|
|
|
/* For use by frame_args_address and frame_locals_address. */
|
|
|
|
CORE_ADDR
|
|
|
|
default_frame_address (struct frame_info *fi)
|
|
|
|
{
|
|
|
|
return fi->frame;
|
|
|
|
}
|
|
|
|
|
2000-06-07 06:38:02 +02:00
|
|
|
/* Functions to manipulate the endianness of the target. */
|
|
|
|
|
|
|
|
#ifdef TARGET_BYTE_ORDER_SELECTABLE
|
|
|
|
/* compat - Catch old targets that expect a selectable byte-order to
|
|
|
|
default to BIG_ENDIAN */
|
|
|
|
#ifndef TARGET_BYTE_ORDER_DEFAULT
|
|
|
|
#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if !TARGET_BYTE_ORDER_SELECTABLE_P
|
|
|
|
#ifndef TARGET_BYTE_ORDER_DEFAULT
|
|
|
|
/* compat - Catch old non byte-order selectable targets that do not
|
|
|
|
define TARGET_BYTE_ORDER_DEFAULT and instead expect
|
|
|
|
TARGET_BYTE_ORDER to be used as the default. For targets that
|
|
|
|
defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the
|
|
|
|
below will get a strange compiler warning. */
|
|
|
|
#define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifndef TARGET_BYTE_ORDER_DEFAULT
|
|
|
|
#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */
|
|
|
|
#endif
|
2000-06-08 06:00:56 +02:00
|
|
|
/* ``target_byte_order'' is only used when non- multi-arch.
|
|
|
|
Multi-arch targets obtain the current byte order using
|
|
|
|
TARGET_BYTE_ORDER which is controlled by gdbarch.*. */
|
2000-06-07 06:38:02 +02:00
|
|
|
int target_byte_order = TARGET_BYTE_ORDER_DEFAULT;
|
|
|
|
int target_byte_order_auto = 1;
|
|
|
|
|
2000-06-08 02:52:56 +02:00
|
|
|
static const char endian_big[] = "big";
|
|
|
|
static const char endian_little[] = "little";
|
|
|
|
static const char endian_auto[] = "auto";
|
|
|
|
static const char *endian_enum[] =
|
2000-06-07 06:38:02 +02:00
|
|
|
{
|
|
|
|
endian_big,
|
|
|
|
endian_little,
|
|
|
|
endian_auto,
|
|
|
|
NULL,
|
|
|
|
};
|
2000-06-08 02:52:56 +02:00
|
|
|
static const char *set_endian_string;
|
2000-06-07 06:38:02 +02:00
|
|
|
|
|
|
|
/* Called by ``show endian''. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
show_endian (char *args, int from_tty)
|
|
|
|
{
|
|
|
|
if (TARGET_BYTE_ORDER_AUTO)
|
|
|
|
printf_unfiltered ("The target endianness is set automatically (currently %s endian)\n",
|
|
|
|
(TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"));
|
|
|
|
else
|
|
|
|
printf_unfiltered ("The target is assumed to be %s endian\n",
|
|
|
|
(TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_endian (char *ignore_args, int from_tty, struct cmd_list_element *c)
|
|
|
|
{
|
|
|
|
if (!TARGET_BYTE_ORDER_SELECTABLE_P)
|
|
|
|
{
|
|
|
|
printf_unfiltered ("Byte order is not selectable.");
|
|
|
|
}
|
|
|
|
else if (set_endian_string == endian_auto)
|
|
|
|
{
|
|
|
|
target_byte_order_auto = 1;
|
|
|
|
}
|
|
|
|
else if (set_endian_string == endian_little)
|
|
|
|
{
|
|
|
|
target_byte_order_auto = 0;
|
|
|
|
if (GDB_MULTI_ARCH)
|
|
|
|
{
|
|
|
|
struct gdbarch_info info;
|
|
|
|
memset (&info, 0, sizeof info);
|
|
|
|
info.byte_order = LITTLE_ENDIAN;
|
2000-08-11 03:30:11 +02:00
|
|
|
if (! gdbarch_update_p (info))
|
|
|
|
{
|
|
|
|
printf_unfiltered ("Little endian target not supported by GDB\n");
|
|
|
|
}
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
2000-06-08 06:00:56 +02:00
|
|
|
else
|
|
|
|
{
|
|
|
|
target_byte_order = LITTLE_ENDIAN;
|
|
|
|
}
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
else if (set_endian_string == endian_big)
|
|
|
|
{
|
|
|
|
target_byte_order_auto = 0;
|
|
|
|
if (GDB_MULTI_ARCH)
|
|
|
|
{
|
|
|
|
struct gdbarch_info info;
|
|
|
|
memset (&info, 0, sizeof info);
|
|
|
|
info.byte_order = BIG_ENDIAN;
|
2000-08-11 03:30:11 +02:00
|
|
|
if (! gdbarch_update_p (info))
|
|
|
|
{
|
|
|
|
printf_unfiltered ("Big endian target not supported by GDB\n");
|
|
|
|
}
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
2000-06-08 06:00:56 +02:00
|
|
|
else
|
|
|
|
{
|
|
|
|
target_byte_order = BIG_ENDIAN;
|
|
|
|
}
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
else
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_endian: bad value");
|
2000-06-07 06:38:02 +02:00
|
|
|
show_endian (NULL, from_tty);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set the endianness from a BFD. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_endian_from_file (bfd *abfd)
|
|
|
|
{
|
2000-06-08 06:00:56 +02:00
|
|
|
if (GDB_MULTI_ARCH)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_endian_from_file: not for multi-arch");
|
2000-06-07 06:38:02 +02:00
|
|
|
if (TARGET_BYTE_ORDER_SELECTABLE_P)
|
|
|
|
{
|
|
|
|
int want;
|
|
|
|
|
|
|
|
if (bfd_big_endian (abfd))
|
|
|
|
want = BIG_ENDIAN;
|
|
|
|
else
|
|
|
|
want = LITTLE_ENDIAN;
|
|
|
|
if (TARGET_BYTE_ORDER_AUTO)
|
|
|
|
target_byte_order = want;
|
|
|
|
else if (TARGET_BYTE_ORDER != want)
|
|
|
|
warning ("%s endian file does not match %s endian target.",
|
|
|
|
want == BIG_ENDIAN ? "big" : "little",
|
|
|
|
TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (bfd_big_endian (abfd)
|
|
|
|
? TARGET_BYTE_ORDER != BIG_ENDIAN
|
|
|
|
: TARGET_BYTE_ORDER == BIG_ENDIAN)
|
|
|
|
warning ("%s endian file does not match %s endian target.",
|
|
|
|
bfd_big_endian (abfd) ? "big" : "little",
|
|
|
|
TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Functions to manipulate the architecture of the target */
|
|
|
|
|
|
|
|
enum set_arch { set_arch_auto, set_arch_manual };
|
|
|
|
|
|
|
|
int target_architecture_auto = 1;
|
|
|
|
|
2000-06-08 02:52:56 +02:00
|
|
|
const char *set_architecture_string;
|
2000-06-07 06:38:02 +02:00
|
|
|
|
|
|
|
/* Old way of changing the current architecture. */
|
|
|
|
|
|
|
|
extern const struct bfd_arch_info bfd_default_arch_struct;
|
|
|
|
const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct;
|
|
|
|
int (*target_architecture_hook) (const struct bfd_arch_info *ap);
|
|
|
|
|
|
|
|
static int
|
|
|
|
arch_ok (const struct bfd_arch_info *arch)
|
|
|
|
{
|
|
|
|
if (GDB_MULTI_ARCH)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"arch_ok: not multi-arched");
|
2000-06-07 06:38:02 +02:00
|
|
|
/* Should be performing the more basic check that the binary is
|
|
|
|
compatible with GDB. */
|
|
|
|
/* Check with the target that the architecture is valid. */
|
|
|
|
return (target_architecture_hook == NULL
|
|
|
|
|| target_architecture_hook (arch));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_arch (const struct bfd_arch_info *arch,
|
|
|
|
enum set_arch type)
|
|
|
|
{
|
|
|
|
if (GDB_MULTI_ARCH)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_arch: not multi-arched");
|
2000-06-07 06:38:02 +02:00
|
|
|
switch (type)
|
|
|
|
{
|
|
|
|
case set_arch_auto:
|
|
|
|
if (!arch_ok (arch))
|
|
|
|
warning ("Target may not support %s architecture",
|
|
|
|
arch->printable_name);
|
|
|
|
target_architecture = arch;
|
|
|
|
break;
|
|
|
|
case set_arch_manual:
|
|
|
|
if (!arch_ok (arch))
|
|
|
|
{
|
|
|
|
printf_unfiltered ("Target does not support `%s' architecture.\n",
|
|
|
|
arch->printable_name);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
target_architecture_auto = 0;
|
|
|
|
target_architecture = arch;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (gdbarch_debug)
|
2000-06-10 07:37:47 +02:00
|
|
|
gdbarch_dump (current_gdbarch, gdb_stdlog);
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Set the architecture from arch/machine (deprecated) */
|
|
|
|
|
|
|
|
void
|
|
|
|
set_architecture_from_arch_mach (enum bfd_architecture arch,
|
|
|
|
unsigned long mach)
|
|
|
|
{
|
|
|
|
const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach);
|
|
|
|
if (GDB_MULTI_ARCH)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_architecture_from_arch_mach: not multi-arched");
|
2000-06-07 06:38:02 +02:00
|
|
|
if (wanted != NULL)
|
|
|
|
set_arch (wanted, set_arch_manual);
|
|
|
|
else
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"gdbarch: hardwired architecture/machine not recognized");
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Set the architecture from a BFD (deprecated) */
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_architecture_from_file (bfd *abfd)
|
|
|
|
{
|
|
|
|
const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd);
|
|
|
|
if (GDB_MULTI_ARCH)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_architecture_from_file: not multi-arched");
|
2000-06-07 06:38:02 +02:00
|
|
|
if (target_architecture_auto)
|
|
|
|
{
|
|
|
|
set_arch (wanted, set_arch_auto);
|
|
|
|
}
|
|
|
|
else if (wanted != target_architecture)
|
|
|
|
{
|
|
|
|
warning ("%s architecture file may be incompatible with %s target.",
|
|
|
|
wanted->printable_name,
|
|
|
|
target_architecture->printable_name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Called if the user enters ``show architecture'' without an
|
|
|
|
argument. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
show_architecture (char *args, int from_tty)
|
|
|
|
{
|
|
|
|
const char *arch;
|
|
|
|
arch = TARGET_ARCHITECTURE->printable_name;
|
|
|
|
if (target_architecture_auto)
|
|
|
|
printf_filtered ("The target architecture is set automatically (currently %s)\n", arch);
|
|
|
|
else
|
|
|
|
printf_filtered ("The target architecture is assumed to be %s\n", arch);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Called if the user enters ``set architecture'' with or without an
|
|
|
|
argument. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_architecture (char *ignore_args, int from_tty, struct cmd_list_element *c)
|
|
|
|
{
|
|
|
|
if (strcmp (set_architecture_string, "auto") == 0)
|
|
|
|
{
|
|
|
|
target_architecture_auto = 1;
|
|
|
|
}
|
|
|
|
else if (GDB_MULTI_ARCH)
|
|
|
|
{
|
|
|
|
struct gdbarch_info info;
|
|
|
|
memset (&info, 0, sizeof info);
|
|
|
|
info.bfd_arch_info = bfd_scan_arch (set_architecture_string);
|
|
|
|
if (info.bfd_arch_info == NULL)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_architecture: bfd_scan_arch failed");
|
2000-08-11 03:30:11 +02:00
|
|
|
if (gdbarch_update_p (info))
|
2000-06-07 06:38:02 +02:00
|
|
|
target_architecture_auto = 0;
|
|
|
|
else
|
2000-10-27 21:17:57 +02:00
|
|
|
printf_unfiltered ("Architecture `%s' not recognized.\n",
|
2000-06-07 06:38:02 +02:00
|
|
|
set_architecture_string);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
const struct bfd_arch_info *arch
|
|
|
|
= bfd_scan_arch (set_architecture_string);
|
|
|
|
if (arch == NULL)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"set_architecture: bfd_scan_arch failed");
|
2000-06-07 06:38:02 +02:00
|
|
|
set_arch (arch, set_arch_manual);
|
|
|
|
}
|
|
|
|
show_architecture (NULL, from_tty);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Called if the user enters ``info architecture'' without an argument. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
info_architecture (char *args, int from_tty)
|
|
|
|
{
|
|
|
|
printf_filtered ("Available architectures are:\n");
|
|
|
|
if (GDB_MULTI_ARCH)
|
|
|
|
{
|
|
|
|
const char **arches = gdbarch_printable_names ();
|
|
|
|
const char **arch;
|
|
|
|
for (arch = arches; *arch != NULL; arch++)
|
|
|
|
{
|
|
|
|
printf_filtered (" %s", *arch);
|
|
|
|
}
|
2000-12-15 02:01:51 +01:00
|
|
|
xfree (arches);
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
enum bfd_architecture a;
|
|
|
|
for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
|
|
|
|
{
|
|
|
|
const struct bfd_arch_info *ap;
|
|
|
|
for (ap = bfd_lookup_arch (a, 0);
|
|
|
|
ap != NULL;
|
|
|
|
ap = ap->next)
|
|
|
|
{
|
|
|
|
printf_filtered (" %s", ap->printable_name);
|
|
|
|
ap = ap->next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
printf_filtered ("\n");
|
|
|
|
}
|
|
|
|
|
2000-09-02 01:39:11 +02:00
|
|
|
/* Set the dynamic target-system-dependent parameters (architecture,
|
2000-06-07 06:38:02 +02:00
|
|
|
byte-order) using information found in the BFD */
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
set_gdbarch_from_file (bfd *abfd)
|
2000-06-07 06:38:02 +02:00
|
|
|
{
|
|
|
|
if (GDB_MULTI_ARCH)
|
|
|
|
{
|
|
|
|
struct gdbarch_info info;
|
|
|
|
memset (&info, 0, sizeof info);
|
|
|
|
info.abfd = abfd;
|
2000-08-11 03:30:11 +02:00
|
|
|
if (! gdbarch_update_p (info))
|
2000-10-27 21:17:57 +02:00
|
|
|
error ("Architecture of file not recognized.\n");
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
set_architecture_from_file (abfd);
|
|
|
|
set_endian_from_file (abfd);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize the current architecture. Update the ``set
|
|
|
|
architecture'' command so that it specifies a list of valid
|
|
|
|
architectures. */
|
|
|
|
|
2000-06-08 06:00:56 +02:00
|
|
|
#ifdef DEFAULT_BFD_ARCH
|
|
|
|
extern const bfd_arch_info_type DEFAULT_BFD_ARCH;
|
|
|
|
static const bfd_arch_info_type *default_bfd_arch = &DEFAULT_BFD_ARCH;
|
|
|
|
#else
|
2000-06-10 07:37:47 +02:00
|
|
|
static const bfd_arch_info_type *default_bfd_arch;
|
2000-06-08 06:00:56 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef DEFAULT_BFD_VEC
|
|
|
|
extern const bfd_target DEFAULT_BFD_VEC;
|
|
|
|
static const bfd_target *default_bfd_vec = &DEFAULT_BFD_VEC;
|
|
|
|
#else
|
|
|
|
static const bfd_target *default_bfd_vec;
|
|
|
|
#endif
|
|
|
|
|
2000-06-07 06:38:02 +02:00
|
|
|
void
|
|
|
|
initialize_current_architecture (void)
|
|
|
|
{
|
|
|
|
const char **arches = gdbarch_printable_names ();
|
|
|
|
|
2000-06-08 06:00:56 +02:00
|
|
|
/* determine a default architecture and byte order. */
|
|
|
|
struct gdbarch_info info;
|
|
|
|
memset (&info, 0, sizeof (info));
|
|
|
|
|
|
|
|
/* Find a default architecture. */
|
|
|
|
if (info.bfd_arch_info == NULL
|
|
|
|
&& default_bfd_arch != NULL)
|
|
|
|
info.bfd_arch_info = default_bfd_arch;
|
|
|
|
if (info.bfd_arch_info == NULL)
|
2000-06-07 06:38:02 +02:00
|
|
|
{
|
2000-06-08 06:00:56 +02:00
|
|
|
/* Choose the architecture by taking the first one
|
|
|
|
alphabetically. */
|
|
|
|
const char *chosen = arches[0];
|
2000-06-07 06:38:02 +02:00
|
|
|
const char **arch;
|
|
|
|
for (arch = arches; *arch != NULL; arch++)
|
|
|
|
{
|
|
|
|
if (strcmp (*arch, chosen) < 0)
|
|
|
|
chosen = *arch;
|
|
|
|
}
|
|
|
|
if (chosen == NULL)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"initialize_current_architecture: No arch");
|
2000-06-07 06:38:02 +02:00
|
|
|
info.bfd_arch_info = bfd_scan_arch (chosen);
|
|
|
|
if (info.bfd_arch_info == NULL)
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"initialize_current_architecture: Arch not found");
|
2000-06-08 06:00:56 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* take several guesses at a byte order. */
|
|
|
|
/* NB: can't use TARGET_BYTE_ORDER_DEFAULT as its definition is
|
|
|
|
forced above. */
|
|
|
|
if (info.byte_order == 0
|
|
|
|
&& default_bfd_vec != NULL)
|
|
|
|
{
|
|
|
|
/* Extract BFD's default vector's byte order. */
|
|
|
|
switch (default_bfd_vec->byteorder)
|
|
|
|
{
|
|
|
|
case BFD_ENDIAN_BIG:
|
|
|
|
info.byte_order = BIG_ENDIAN;
|
|
|
|
break;
|
|
|
|
case BFD_ENDIAN_LITTLE:
|
|
|
|
info.byte_order = LITTLE_ENDIAN;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (info.byte_order == 0)
|
|
|
|
{
|
|
|
|
/* look for ``*el-*'' in the target name. */
|
|
|
|
const char *chp;
|
|
|
|
chp = strchr (target_name, '-');
|
|
|
|
if (chp != NULL
|
|
|
|
&& chp - 2 >= target_name
|
|
|
|
&& strncmp (chp - 2, "el", 2) == 0)
|
|
|
|
info.byte_order = LITTLE_ENDIAN;
|
|
|
|
}
|
|
|
|
if (info.byte_order == 0)
|
|
|
|
{
|
|
|
|
/* Wire it to big-endian!!! */
|
|
|
|
info.byte_order = BIG_ENDIAN;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (GDB_MULTI_ARCH)
|
|
|
|
{
|
2000-08-11 03:30:11 +02:00
|
|
|
if (! gdbarch_update_p (info))
|
|
|
|
{
|
2001-02-08 07:03:54 +01:00
|
|
|
internal_error (__FILE__, __LINE__,
|
|
|
|
"initialize_current_architecture: Selection of initial architecture failed");
|
2000-08-11 03:30:11 +02:00
|
|
|
}
|
2000-06-07 06:38:02 +02:00
|
|
|
}
|
|
|
|
|
2000-06-08 06:00:56 +02:00
|
|
|
/* Create the ``set architecture'' command appending ``auto'' to the
|
|
|
|
list of architectures. */
|
2000-06-07 06:38:02 +02:00
|
|
|
{
|
|
|
|
struct cmd_list_element *c;
|
|
|
|
/* Append ``auto''. */
|
|
|
|
int nr;
|
|
|
|
for (nr = 0; arches[nr] != NULL; nr++);
|
|
|
|
arches = xrealloc (arches, sizeof (char*) * (nr + 2));
|
|
|
|
arches[nr + 0] = "auto";
|
|
|
|
arches[nr + 1] = NULL;
|
|
|
|
/* FIXME: add_set_enum_cmd() uses an array of ``char *'' instead
|
|
|
|
of ``const char *''. We just happen to know that the casts are
|
|
|
|
safe. */
|
|
|
|
c = add_set_enum_cmd ("architecture", class_support,
|
2000-06-08 02:52:56 +02:00
|
|
|
arches, &set_architecture_string,
|
2000-06-07 06:38:02 +02:00
|
|
|
"Set architecture of target.",
|
|
|
|
&setlist);
|
|
|
|
c->function.sfunc = set_architecture;
|
|
|
|
add_alias_cmd ("processor", "architecture", class_support, 1, &setlist);
|
|
|
|
/* Don't use set_from_show - need to print both auto/manual and
|
|
|
|
current setting. */
|
|
|
|
add_cmd ("architecture", class_support, show_architecture,
|
|
|
|
"Show the current target architecture", &showlist);
|
|
|
|
c = add_cmd ("architecture", class_support, info_architecture,
|
|
|
|
"List supported target architectures", &infolist);
|
|
|
|
deprecate_cmd (c, "set architecture");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-04-03 02:00:32 +02:00
|
|
|
/* */
|
|
|
|
|
2000-06-07 06:38:02 +02:00
|
|
|
extern initialize_file_ftype _initialize_gdbarch_utils;
|
2000-04-03 02:00:32 +02:00
|
|
|
|
|
|
|
void
|
2000-06-07 06:38:02 +02:00
|
|
|
_initialize_gdbarch_utils (void)
|
2000-04-03 02:00:32 +02:00
|
|
|
{
|
2000-06-07 06:38:02 +02:00
|
|
|
struct cmd_list_element *c;
|
|
|
|
c = add_set_enum_cmd ("endian", class_support,
|
|
|
|
endian_enum, &set_endian_string,
|
|
|
|
"Set endianness of target.",
|
|
|
|
&setlist);
|
|
|
|
c->function.sfunc = set_endian;
|
|
|
|
/* Don't use set_from_show - need to print both auto/manual and
|
|
|
|
current setting. */
|
|
|
|
add_cmd ("endian", class_support, show_endian,
|
|
|
|
"Show the current byte-order", &showlist);
|
2000-04-03 02:00:32 +02:00
|
|
|
}
|