1991-03-28 17:26:26 +01:00
|
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|
/* Find a variable's value in memory, for GDB, the GNU debugger.
|
* defs.h: Incorporate param.h. All users changed.
* param-no-tm.h: Change users to define TM_FILE_OVERRIDE instead.
* param.h, param-no-tm.h: Removed.
* Update copyrights in all changed files.
* dbxread.c, dwarfread.c, inflow.c, infrun.c, m2-exp.y, putenv.c,
solib.c, symtab.h, tm-umax.h, valprint.c: Lint.
* tm-convex.h, tm-hp300hpux.h, tm-merlin.h, tm-sparc.h,
xm-merlin.h: Avoid host include files in target descriptions.
* getpagesize.h: Removed, libiberty copes now.
1991-11-21 19:42:05 +01:00
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Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
|
1991-03-28 17:26:26 +01:00
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This file is part of GDB.
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1991-07-14 09:48:06 +02:00
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This program is free software; you can redistribute it and/or modify
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1991-03-28 17:26:26 +01:00
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it under the terms of the GNU General Public License as published by
|
1991-07-14 09:48:06 +02:00
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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.
|
1991-03-28 17:26:26 +01:00
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1991-07-14 09:48:06 +02:00
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This program is distributed in the hope that it will be useful,
|
1991-03-28 17:26:26 +01:00
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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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|
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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
|
1991-07-14 09:48:06 +02:00
|
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along with this program; if not, write to the Free Software
|
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
1991-03-28 17:26:26 +01:00
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|
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|
|
#include "defs.h"
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|
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|
#include "symtab.h"
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-30 01:34:38 +02:00
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|
#include "gdbtypes.h"
|
1991-03-28 17:26:26 +01:00
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|
#include "frame.h"
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|
#include "value.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "target.h"
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|
1993-09-01 22:37:15 +02:00
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|
/* Basic byte-swapping routines. GDB has needed these for a long time...
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|
All extract a target-format integer at ADDR which is LEN bytes long. */
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#if TARGET_CHAR_BIT != 8 || HOST_CHAR_BIT != 8
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/* 8 bit characters are a pretty safe assumption these days, so we
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assume it throughout all these swapping routines. If we had to deal with
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9 bit characters, we would need to make len be in bits and would have
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to re-write these routines... */
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you lose
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#endif
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LONGEST
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extract_signed_integer (addr, len)
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PTR addr;
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int len;
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|
{
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LONGEST retval;
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unsigned char *p;
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unsigned char *startaddr = (unsigned char *)addr;
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unsigned char *endaddr = startaddr + len;
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if (len > sizeof (LONGEST))
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error ("\
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That operation is not available on integers of more than %d bytes.",
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sizeof (LONGEST));
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/* Start at the most significant end of the integer, and work towards
|
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the least significant. */
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|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
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p = startaddr;
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#else
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p = endaddr - 1;
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#endif
|
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|
/* Do the sign extension once at the start. */
|
Tue Sep 28 09:45:38 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* symmisc.c (print_symbol): Use %02x not %2x for LOC_CONST_BYTES.
Clean up problems with targets and hosts that have 64 bit longs
and pointers and 32 bit ints.
* breakpoint.c, buildsym.c, c-lang.c, c-valprint.c, ch-lang.c,
ch-valprint.c, core.c, cp-valprint.c, dbxread.c, exec.c,
expprint.c, gdbtypes.c, infcmd.c, language.c, language.h,
m2-lang.c, maint.c, mips-tdep.c, mipsread.c, partial-stab.h,
printcmd.c, remote-vx.c, solib.c, source.c, stack.c, symfile.c,
symmisc.c, symtab.c, valops.c, valprint.c, xcoffexec.c:
Change all printf formats from %x to %lx if outputting an address.
Change la_*_format to use long format.
local_hex_string, local_hex_string_custom now take an unsigned long
argument, change all callers.
* coffread.c (read_coff_symtab): Remove superfluous cast for
complaint output.
* dbxread.c (end_psymtab): Cast MSYMBOL_INFO to long, not int.
* findvar.c, value.h (write_register): Change register value to long.
* gdbtypes.h (struct type): Change `bitsize' to long as
TYPE_FIELD_STATIC_PHYSNAME uses this field as a pointer.
* inferior.h (struct inferior_status): Change type of stop_pc to
CORE_ADDR.
* language.h (local_octal_string, local_octal_string_custom):
Remove prototype, the functions are neither defined nor used.
* mipsread.c (parse_symbol): Use temporary variable for bitsize as
f->bitsize is a long now.
* objfiles.c (add_to_objfile_sections, build_objfile_section_table):
Use unsigned long casts instead of int for abusing sections_end
pointer as integer.
* stack.c (parse_frame_specification): Change type of `args' to
CORE_ADDR for SETUP_ARBITRARY_FRAME.
* printcmd.c (make_vasize): Allow redefinition via MAKEVA_SIZE.
* mipsread.c (parse_type): Alpha cc now supports the t->continued
bit, update algorithm to match the way the compiler uses it.
1993-09-28 18:43:25 +01:00
|
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|
retval = ((LONGEST)*p ^ 0x80) - 0x80;
|
1993-09-01 22:37:15 +02:00
|
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|
|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
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|
for (++p; p < endaddr; ++p)
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#else
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|
for (--p; p >= startaddr; --p)
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|
#endif
|
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|
|
|
{
|
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|
|
retval = (retval << 8) | *p;
|
|
|
|
|
}
|
|
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|
return retval;
|
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|
}
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|
unsigned LONGEST
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|
|
extract_unsigned_integer (addr, len)
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PTR addr;
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int len;
|
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|
{
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|
unsigned LONGEST retval;
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unsigned char *p;
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unsigned char *startaddr = (unsigned char *)addr;
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unsigned char *endaddr = startaddr + len;
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if (len > sizeof (unsigned LONGEST))
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error ("\
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|
That operation is not available on integers of more than %d bytes.",
|
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sizeof (unsigned LONGEST));
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|
/* Start at the most significant end of the integer, and work towards
|
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|
the least significant. */
|
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|
retval = 0;
|
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|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
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for (p = startaddr; p < endaddr; ++p)
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#else
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|
for (p = endaddr - 1; p >= startaddr; --p)
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|
#endif
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|
{
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|
retval = (retval << 8) | *p;
|
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|
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|
}
|
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|
return retval;
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|
}
|
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|
CORE_ADDR
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|
extract_address (addr, len)
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PTR addr;
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|
int len;
|
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|
|
{
|
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|
/* Assume a CORE_ADDR can fit in a LONGEST (for now). Not sure
|
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|
|
whether we want this to be true eventually. */
|
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|
return extract_unsigned_integer (addr, len);
|
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|
}
|
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|
void
|
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|
store_signed_integer (addr, len, val)
|
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|
PTR addr;
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|
int len;
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LONGEST val;
|
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|
{
|
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|
unsigned char *p;
|
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|
unsigned char *startaddr = (unsigned char *)addr;
|
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|
unsigned char *endaddr = startaddr + len;
|
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|
/* Start at the least significant end of the integer, and work towards
|
|
|
|
|
the most significant. */
|
|
|
|
|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
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|
|
|
for (p = endaddr - 1; p >= startaddr; --p)
|
|
|
|
|
#else
|
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|
|
|
for (p = startaddr; p < endaddr; ++p)
|
|
|
|
|
#endif
|
|
|
|
|
{
|
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|
|
|
*p = val & 0xff;
|
|
|
|
|
val >>= 8;
|
|
|
|
|
}
|
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|
|
|
}
|
|
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|
|
void
|
|
|
|
|
store_unsigned_integer (addr, len, val)
|
|
|
|
|
PTR addr;
|
|
|
|
|
int len;
|
|
|
|
|
unsigned LONGEST val;
|
|
|
|
|
{
|
|
|
|
|
unsigned char *p;
|
|
|
|
|
unsigned char *startaddr = (unsigned char *)addr;
|
|
|
|
|
unsigned char *endaddr = startaddr + len;
|
|
|
|
|
|
|
|
|
|
/* Start at the least significant end of the integer, and work towards
|
|
|
|
|
the most significant. */
|
|
|
|
|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
|
|
|
|
for (p = endaddr - 1; p >= startaddr; --p)
|
|
|
|
|
#else
|
|
|
|
|
for (p = startaddr; p < endaddr; ++p)
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
*p = val & 0xff;
|
|
|
|
|
val >>= 8;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
store_address (addr, len, val)
|
|
|
|
|
PTR addr;
|
|
|
|
|
int len;
|
|
|
|
|
CORE_ADDR val;
|
|
|
|
|
{
|
|
|
|
|
/* Assume a CORE_ADDR can fit in a LONGEST (for now). Not sure
|
|
|
|
|
whether we want this to be true eventually. */
|
|
|
|
|
store_unsigned_integer (addr, len, (LONGEST)val);
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
#if !defined (GET_SAVED_REGISTER)
|
|
|
|
|
|
|
|
|
|
/* Return the address in which frame FRAME's value of register REGNUM
|
|
|
|
|
has been saved in memory. Or return zero if it has not been saved.
|
|
|
|
|
If REGNUM specifies the SP, the value we return is actually
|
|
|
|
|
the SP value, not an address where it was saved. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
find_saved_register (frame, regnum)
|
|
|
|
|
FRAME frame;
|
|
|
|
|
int regnum;
|
|
|
|
|
{
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
struct frame_saved_regs saved_regs;
|
|
|
|
|
|
|
|
|
|
register FRAME frame1 = 0;
|
|
|
|
|
register CORE_ADDR addr = 0;
|
|
|
|
|
|
|
|
|
|
if (frame == 0) /* No regs saved if want current frame */
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_REGISTER_WINDOWS
|
|
|
|
|
/* We assume that a register in a register window will only be saved
|
|
|
|
|
in one place (since the name changes and/or disappears as you go
|
|
|
|
|
towards inner frames), so we only call get_frame_saved_regs on
|
|
|
|
|
the current frame. This is directly in contradiction to the
|
|
|
|
|
usage below, which assumes that registers used in a frame must be
|
|
|
|
|
saved in a lower (more interior) frame. This change is a result
|
|
|
|
|
of working on a register window machine; get_frame_saved_regs
|
|
|
|
|
always returns the registers saved within a frame, within the
|
|
|
|
|
context (register namespace) of that frame. */
|
|
|
|
|
|
|
|
|
|
/* However, note that we don't want this to return anything if
|
|
|
|
|
nothing is saved (if there's a frame inside of this one). Also,
|
|
|
|
|
callers to this routine asking for the stack pointer want the
|
|
|
|
|
stack pointer saved for *this* frame; this is returned from the
|
|
|
|
|
next frame. */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (REGISTER_IN_WINDOW_P(regnum))
|
|
|
|
|
{
|
|
|
|
|
frame1 = get_next_frame (frame);
|
|
|
|
|
if (!frame1) return 0; /* Registers of this frame are
|
|
|
|
|
active. */
|
|
|
|
|
|
|
|
|
|
/* Get the SP from the next frame in; it will be this
|
|
|
|
|
current frame. */
|
|
|
|
|
if (regnum != SP_REGNUM)
|
|
|
|
|
frame1 = frame;
|
|
|
|
|
|
|
|
|
|
fi = get_frame_info (frame1);
|
|
|
|
|
get_frame_saved_regs (fi, &saved_regs);
|
|
|
|
|
return saved_regs.regs[regnum]; /* ... which might be zero */
|
|
|
|
|
}
|
|
|
|
|
#endif /* HAVE_REGISTER_WINDOWS */
|
|
|
|
|
|
|
|
|
|
/* Note that this next routine assumes that registers used in
|
|
|
|
|
frame x will be saved only in the frame that x calls and
|
|
|
|
|
frames interior to it. This is not true on the sparc, but the
|
|
|
|
|
above macro takes care of it, so we should be all right. */
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
QUIT;
|
|
|
|
|
frame1 = get_prev_frame (frame1);
|
|
|
|
|
if (frame1 == 0 || frame1 == frame)
|
|
|
|
|
break;
|
|
|
|
|
fi = get_frame_info (frame1);
|
|
|
|
|
get_frame_saved_regs (fi, &saved_regs);
|
|
|
|
|
if (saved_regs.regs[regnum])
|
|
|
|
|
addr = saved_regs.regs[regnum];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
|
}
|
|
|
|
|
|
1993-07-09 20:33:23 +02:00
|
|
|
|
/* Find register number REGNUM relative to FRAME and put its (raw,
|
|
|
|
|
target format) contents in *RAW_BUFFER. Set *OPTIMIZED if the
|
|
|
|
|
variable was optimized out (and thus can't be fetched). Set *LVAL
|
|
|
|
|
to lval_memory, lval_register, or not_lval, depending on whether
|
|
|
|
|
the value was fetched from memory, from a register, or in a strange
|
1991-03-28 17:26:26 +01:00
|
|
|
|
and non-modifiable way (e.g. a frame pointer which was calculated
|
|
|
|
|
rather than fetched). Set *ADDRP to the address, either in memory
|
|
|
|
|
on as a REGISTER_BYTE offset into the registers array.
|
|
|
|
|
|
|
|
|
|
Note that this implementation never sets *LVAL to not_lval. But
|
|
|
|
|
it can be replaced by defining GET_SAVED_REGISTER and supplying
|
|
|
|
|
your own.
|
|
|
|
|
|
|
|
|
|
The argument RAW_BUFFER must point to aligned memory. */
|
1993-07-09 20:33:23 +02:00
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
void
|
|
|
|
|
get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
|
|
|
|
|
char *raw_buffer;
|
|
|
|
|
int *optimized;
|
|
|
|
|
CORE_ADDR *addrp;
|
|
|
|
|
FRAME frame;
|
|
|
|
|
int regnum;
|
|
|
|
|
enum lval_type *lval;
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
/* Normal systems don't optimize out things with register numbers. */
|
|
|
|
|
if (optimized != NULL)
|
|
|
|
|
*optimized = 0;
|
|
|
|
|
addr = find_saved_register (frame, regnum);
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-30 01:34:38 +02:00
|
|
|
|
if (addr != 0)
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
|
|
|
|
if (lval != NULL)
|
|
|
|
|
*lval = lval_memory;
|
|
|
|
|
if (regnum == SP_REGNUM)
|
|
|
|
|
{
|
|
|
|
|
if (raw_buffer != NULL)
|
1993-07-09 20:33:23 +02:00
|
|
|
|
{
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Put it back in target format. */
|
|
|
|
|
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum), addr);
|
1993-07-09 20:33:23 +02:00
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
if (addrp != NULL)
|
|
|
|
|
*addrp = 0;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
if (raw_buffer != NULL)
|
|
|
|
|
read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (lval != NULL)
|
|
|
|
|
*lval = lval_register;
|
|
|
|
|
addr = REGISTER_BYTE (regnum);
|
|
|
|
|
if (raw_buffer != NULL)
|
|
|
|
|
read_register_gen (regnum, raw_buffer);
|
|
|
|
|
}
|
|
|
|
|
if (addrp != NULL)
|
|
|
|
|
*addrp = addr;
|
|
|
|
|
}
|
|
|
|
|
#endif /* GET_SAVED_REGISTER. */
|
|
|
|
|
|
|
|
|
|
/* Copy the bytes of register REGNUM, relative to the current stack frame,
|
|
|
|
|
into our memory at MYADDR, in target byte order.
|
|
|
|
|
The number of bytes copied is REGISTER_RAW_SIZE (REGNUM).
|
|
|
|
|
|
|
|
|
|
Returns 1 if could not be read, 0 if could. */
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
read_relative_register_raw_bytes (regnum, myaddr)
|
|
|
|
|
int regnum;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
{
|
|
|
|
|
int optim;
|
|
|
|
|
if (regnum == FP_REGNUM && selected_frame)
|
|
|
|
|
{
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Put it back in target format. */
|
|
|
|
|
store_address (myaddr, REGISTER_RAW_SIZE(FP_REGNUM),
|
|
|
|
|
FRAME_FP(selected_frame));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1991-05-02 06:28:42 +02:00
|
|
|
|
get_saved_register (myaddr, &optim, (CORE_ADDR *) NULL, selected_frame,
|
1991-03-28 17:26:26 +01:00
|
|
|
|
regnum, (enum lval_type *)NULL);
|
|
|
|
|
return optim;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return a `value' with the contents of register REGNUM
|
|
|
|
|
in its virtual format, with the type specified by
|
|
|
|
|
REGISTER_VIRTUAL_TYPE. */
|
|
|
|
|
|
|
|
|
|
value
|
|
|
|
|
value_of_register (regnum)
|
|
|
|
|
int regnum;
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
int optim;
|
|
|
|
|
register value val;
|
|
|
|
|
char raw_buffer[MAX_REGISTER_RAW_SIZE];
|
|
|
|
|
char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
|
|
|
|
|
enum lval_type lval;
|
|
|
|
|
|
|
|
|
|
get_saved_register (raw_buffer, &optim, &addr,
|
|
|
|
|
selected_frame, regnum, &lval);
|
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
REGISTER_CONVERT_TO_VIRTUAL (regnum, raw_buffer, virtual_buffer);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
val = allocate_value (REGISTER_VIRTUAL_TYPE (regnum));
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (val), virtual_buffer,
|
|
|
|
|
REGISTER_VIRTUAL_SIZE (regnum));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
VALUE_LVAL (val) = lval;
|
|
|
|
|
VALUE_ADDRESS (val) = addr;
|
|
|
|
|
VALUE_REGNO (val) = regnum;
|
|
|
|
|
VALUE_OPTIMIZED_OUT (val) = optim;
|
|
|
|
|
return val;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Low level examining and depositing of registers.
|
|
|
|
|
|
|
|
|
|
The caller is responsible for making
|
|
|
|
|
sure that the inferior is stopped before calling the fetching routines,
|
|
|
|
|
or it will get garbage. (a change from GDB version 3, in which
|
|
|
|
|
the caller got the value from the last stop). */
|
|
|
|
|
|
|
|
|
|
/* Contents of the registers in target byte order.
|
1993-09-01 22:37:15 +02:00
|
|
|
|
We allocate some extra slop since we do a lot of memcpy's around `registers',
|
1991-03-28 17:26:26 +01:00
|
|
|
|
and failing-soft is better than failing hard. */
|
|
|
|
|
char registers[REGISTER_BYTES + /* SLOP */ 256];
|
|
|
|
|
|
|
|
|
|
/* Nonzero if that register has been fetched. */
|
|
|
|
|
char register_valid[NUM_REGS];
|
|
|
|
|
|
|
|
|
|
/* Indicate that registers may have changed, so invalidate the cache. */
|
|
|
|
|
void
|
|
|
|
|
registers_changed ()
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < NUM_REGS; i++)
|
|
|
|
|
register_valid[i] = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Indicate that all registers have been fetched, so mark them all valid. */
|
|
|
|
|
void
|
|
|
|
|
registers_fetched ()
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < NUM_REGS; i++)
|
|
|
|
|
register_valid[i] = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy LEN bytes of consecutive data from registers
|
|
|
|
|
starting with the REGBYTE'th byte of register data
|
|
|
|
|
into memory at MYADDR. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
read_register_bytes (regbyte, myaddr, len)
|
|
|
|
|
int regbyte;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
/* Fetch all registers. */
|
|
|
|
|
int i;
|
|
|
|
|
for (i = 0; i < NUM_REGS; i++)
|
|
|
|
|
if (!register_valid[i])
|
|
|
|
|
{
|
|
|
|
|
target_fetch_registers (-1);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (myaddr != NULL)
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (myaddr, ®isters[regbyte], len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read register REGNO into memory at MYADDR, which must be large enough
|
1991-04-20 05:57:50 +02:00
|
|
|
|
for REGISTER_RAW_BYTES (REGNO). Target byte-order.
|
|
|
|
|
If the register is known to be the size of a CORE_ADDR or smaller,
|
|
|
|
|
read_register can be used instead. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
void
|
|
|
|
|
read_register_gen (regno, myaddr)
|
|
|
|
|
int regno;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
{
|
|
|
|
|
if (!register_valid[regno])
|
|
|
|
|
target_fetch_registers (regno);
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (myaddr, ®isters[REGISTER_BYTE (regno)],
|
|
|
|
|
REGISTER_RAW_SIZE (regno));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy LEN bytes of consecutive data from memory at MYADDR
|
|
|
|
|
into registers starting with the REGBYTE'th byte of register data. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
write_register_bytes (regbyte, myaddr, len)
|
|
|
|
|
int regbyte;
|
|
|
|
|
char *myaddr;
|
|
|
|
|
int len;
|
|
|
|
|
{
|
|
|
|
|
/* Make sure the entire registers array is valid. */
|
|
|
|
|
read_register_bytes (0, (char *)NULL, REGISTER_BYTES);
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (®isters[regbyte], myaddr, len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
target_store_registers (-1);
|
|
|
|
|
}
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Return the raw contents of register REGNO, regarding it as an integer. */
|
|
|
|
|
/* This probably should be returning LONGEST rather than CORE_ADDR. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
read_register (regno)
|
|
|
|
|
int regno;
|
|
|
|
|
{
|
|
|
|
|
if (!register_valid[regno])
|
|
|
|
|
target_fetch_registers (regno);
|
1993-03-30 17:59:01 +02:00
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
return extract_address (®isters[REGISTER_BYTE (regno)],
|
|
|
|
|
REGISTER_RAW_SIZE(regno));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Registers we shouldn't try to store. */
|
|
|
|
|
#if !defined (CANNOT_STORE_REGISTER)
|
|
|
|
|
#define CANNOT_STORE_REGISTER(regno) 0
|
|
|
|
|
#endif
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Store VALUE, into the raw contents of register number REGNO. */
|
|
|
|
|
/* FIXME: The val arg should probably be a LONGEST. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
write_register (regno, val)
|
Tue Sep 28 09:45:38 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* symmisc.c (print_symbol): Use %02x not %2x for LOC_CONST_BYTES.
Clean up problems with targets and hosts that have 64 bit longs
and pointers and 32 bit ints.
* breakpoint.c, buildsym.c, c-lang.c, c-valprint.c, ch-lang.c,
ch-valprint.c, core.c, cp-valprint.c, dbxread.c, exec.c,
expprint.c, gdbtypes.c, infcmd.c, language.c, language.h,
m2-lang.c, maint.c, mips-tdep.c, mipsread.c, partial-stab.h,
printcmd.c, remote-vx.c, solib.c, source.c, stack.c, symfile.c,
symmisc.c, symtab.c, valops.c, valprint.c, xcoffexec.c:
Change all printf formats from %x to %lx if outputting an address.
Change la_*_format to use long format.
local_hex_string, local_hex_string_custom now take an unsigned long
argument, change all callers.
* coffread.c (read_coff_symtab): Remove superfluous cast for
complaint output.
* dbxread.c (end_psymtab): Cast MSYMBOL_INFO to long, not int.
* findvar.c, value.h (write_register): Change register value to long.
* gdbtypes.h (struct type): Change `bitsize' to long as
TYPE_FIELD_STATIC_PHYSNAME uses this field as a pointer.
* inferior.h (struct inferior_status): Change type of stop_pc to
CORE_ADDR.
* language.h (local_octal_string, local_octal_string_custom):
Remove prototype, the functions are neither defined nor used.
* mipsread.c (parse_symbol): Use temporary variable for bitsize as
f->bitsize is a long now.
* objfiles.c (add_to_objfile_sections, build_objfile_section_table):
Use unsigned long casts instead of int for abusing sections_end
pointer as integer.
* stack.c (parse_frame_specification): Change type of `args' to
CORE_ADDR for SETUP_ARBITRARY_FRAME.
* printcmd.c (make_vasize): Allow redefinition via MAKEVA_SIZE.
* mipsread.c (parse_type): Alpha cc now supports the t->continued
bit, update algorithm to match the way the compiler uses it.
1993-09-28 18:43:25 +01:00
|
|
|
|
int regno;
|
|
|
|
|
long val;
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
1993-09-01 22:37:15 +02:00
|
|
|
|
PTR buf;
|
1993-06-09 02:47:13 +02:00
|
|
|
|
int size;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
/* On the sparc, writing %g0 is a no-op, so we don't even want to change
|
|
|
|
|
the registers array if something writes to this register. */
|
|
|
|
|
if (CANNOT_STORE_REGISTER (regno))
|
|
|
|
|
return;
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
size = REGISTER_RAW_SIZE(regno);
|
|
|
|
|
buf = alloca (size);
|
|
|
|
|
store_signed_integer (buf, size, (LONGEST) val);
|
|
|
|
|
|
1993-06-09 02:47:13 +02:00
|
|
|
|
/* If we have a valid copy of the register, and new value == old value,
|
|
|
|
|
then don't bother doing the actual store. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
1993-06-09 02:47:13 +02:00
|
|
|
|
if (register_valid [regno])
|
|
|
|
|
{
|
1993-09-01 22:37:15 +02:00
|
|
|
|
if (memcmp (®isters[REGISTER_BYTE (regno)], buf, size) == 0)
|
1993-06-09 02:47:13 +02:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
target_prepare_to_store ();
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE (regno)], buf, size);
|
1993-06-09 02:47:13 +02:00
|
|
|
|
|
|
|
|
|
register_valid [regno] = 1;
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
target_store_registers (regno);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Record that register REGNO contains VAL.
|
|
|
|
|
This is used when the value is obtained from the inferior or core dump,
|
|
|
|
|
so there is no need to store the value there. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
supply_register (regno, val)
|
|
|
|
|
int regno;
|
|
|
|
|
char *val;
|
|
|
|
|
{
|
|
|
|
|
register_valid[regno] = 1;
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE (regno)], val, REGISTER_RAW_SIZE (regno));
|
|
|
|
|
|
|
|
|
|
/* On some architectures, e.g. HPPA, there are a few stray bits in some
|
|
|
|
|
registers, that the rest of the code would like to ignore. */
|
|
|
|
|
#ifdef CLEAN_UP_REGISTER_VALUE
|
|
|
|
|
CLEAN_UP_REGISTER_VALUE(regno, ®isters[REGISTER_BYTE(regno)]);
|
|
|
|
|
#endif
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Given a struct symbol for a variable,
|
|
|
|
|
and a stack frame id, read the value of the variable
|
|
|
|
|
and return a (pointer to a) struct value containing the value.
|
1991-04-22 22:08:53 +02:00
|
|
|
|
If the variable cannot be found, return a zero pointer.
|
|
|
|
|
If FRAME is NULL, use the selected_frame. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
value
|
|
|
|
|
read_var_value (var, frame)
|
|
|
|
|
register struct symbol *var;
|
|
|
|
|
FRAME frame;
|
|
|
|
|
{
|
|
|
|
|
register value v;
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
struct type *type = SYMBOL_TYPE (var);
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
register int len;
|
|
|
|
|
|
|
|
|
|
v = allocate_value (type);
|
|
|
|
|
VALUE_LVAL (v) = lval_memory; /* The most likely possibility. */
|
|
|
|
|
len = TYPE_LENGTH (type);
|
|
|
|
|
|
|
|
|
|
if (frame == 0) frame = selected_frame;
|
|
|
|
|
|
|
|
|
|
switch (SYMBOL_CLASS (var))
|
|
|
|
|
{
|
|
|
|
|
case LOC_CONST:
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Put the constant back in target format. */
|
|
|
|
|
store_signed_integer (VALUE_CONTENTS_RAW (v), len,
|
|
|
|
|
(LONGEST) SYMBOL_VALUE (var));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
VALUE_LVAL (v) = not_lval;
|
|
|
|
|
return v;
|
|
|
|
|
|
|
|
|
|
case LOC_LABEL:
|
1993-09-01 22:37:15 +02:00
|
|
|
|
/* Put the constant back in target format. */
|
|
|
|
|
store_address (VALUE_CONTENTS_RAW (v), len, SYMBOL_VALUE_ADDRESS (var));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
VALUE_LVAL (v) = not_lval;
|
|
|
|
|
return v;
|
|
|
|
|
|
|
|
|
|
case LOC_CONST_BYTES:
|
1991-07-14 09:48:06 +02:00
|
|
|
|
{
|
|
|
|
|
char *bytes_addr;
|
|
|
|
|
bytes_addr = SYMBOL_VALUE_BYTES (var);
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (v), bytes_addr, len);
|
1991-07-14 09:48:06 +02:00
|
|
|
|
VALUE_LVAL (v) = not_lval;
|
|
|
|
|
return v;
|
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
case LOC_STATIC:
|
|
|
|
|
addr = SYMBOL_VALUE_ADDRESS (var);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case LOC_ARG:
|
1993-09-01 22:37:15 +02:00
|
|
|
|
fi = get_frame_info (frame);
|
|
|
|
|
if (fi == NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
addr = FRAME_ARGS_ADDRESS (fi);
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-30 01:34:38 +02:00
|
|
|
|
if (!addr)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
addr += SYMBOL_VALUE (var);
|
|
|
|
|
break;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
case LOC_REF_ARG:
|
1993-09-01 22:37:15 +02:00
|
|
|
|
fi = get_frame_info (frame);
|
|
|
|
|
if (fi == NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
addr = FRAME_ARGS_ADDRESS (fi);
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-30 01:34:38 +02:00
|
|
|
|
if (!addr)
|
|
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
addr += SYMBOL_VALUE (var);
|
1993-09-01 22:37:15 +02:00
|
|
|
|
addr = read_memory_unsigned_integer
|
|
|
|
|
(addr, TARGET_PTR_BIT / TARGET_CHAR_BIT);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
break;
|
1993-09-01 22:37:15 +02:00
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
case LOC_LOCAL:
|
|
|
|
|
case LOC_LOCAL_ARG:
|
1993-09-01 22:37:15 +02:00
|
|
|
|
fi = get_frame_info (frame);
|
|
|
|
|
if (fi == NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
addr = FRAME_LOCALS_ADDRESS (fi);
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-30 01:34:38 +02:00
|
|
|
|
addr += SYMBOL_VALUE (var);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
break;
|
|
|
|
|
|
1993-09-01 22:37:15 +02:00
|
|
|
|
case LOC_BASEREG:
|
|
|
|
|
case LOC_BASEREG_ARG:
|
|
|
|
|
{
|
|
|
|
|
char buf[MAX_REGISTER_RAW_SIZE];
|
|
|
|
|
get_saved_register (buf, NULL, NULL, frame, SYMBOL_BASEREG (var),
|
|
|
|
|
NULL);
|
|
|
|
|
addr = extract_address (buf, REGISTER_RAW_SIZE (SYMBOL_BASEREG (var)));
|
|
|
|
|
addr += SYMBOL_VALUE (var);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
case LOC_TYPEDEF:
|
|
|
|
|
error ("Cannot look up value of a typedef");
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case LOC_BLOCK:
|
|
|
|
|
VALUE_ADDRESS (v) = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
|
|
|
|
|
return v;
|
|
|
|
|
|
|
|
|
|
case LOC_REGISTER:
|
|
|
|
|
case LOC_REGPARM:
|
1993-05-18 00:48:07 +02:00
|
|
|
|
case LOC_REGPARM_ADDR:
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
1991-04-22 22:08:53 +02:00
|
|
|
|
struct block *b;
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
1991-04-22 22:08:53 +02:00
|
|
|
|
if (frame == NULL)
|
|
|
|
|
return 0;
|
|
|
|
|
b = get_frame_block (frame);
|
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
v = value_from_register (type, SYMBOL_VALUE (var), frame);
|
|
|
|
|
|
1993-05-18 00:48:07 +02:00
|
|
|
|
if (SYMBOL_CLASS (var) == LOC_REGPARM_ADDR)
|
1993-03-30 17:59:01 +02:00
|
|
|
|
{
|
|
|
|
|
addr = *(CORE_ADDR *)VALUE_CONTENTS (v);
|
|
|
|
|
VALUE_LVAL (v) = lval_memory;
|
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
else
|
|
|
|
|
return v;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
1993-05-18 00:48:07 +02:00
|
|
|
|
case LOC_OPTIMIZED_OUT:
|
|
|
|
|
VALUE_LVAL (v) = not_lval;
|
|
|
|
|
VALUE_OPTIMIZED_OUT (v) = 1;
|
|
|
|
|
return v;
|
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
default:
|
|
|
|
|
error ("Cannot look up value of a botched symbol.");
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
VALUE_ADDRESS (v) = addr;
|
|
|
|
|
VALUE_LAZY (v) = 1;
|
|
|
|
|
return v;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return a value of type TYPE, stored in register REGNUM, in frame
|
|
|
|
|
FRAME. */
|
|
|
|
|
|
|
|
|
|
value
|
|
|
|
|
value_from_register (type, regnum, frame)
|
|
|
|
|
struct type *type;
|
|
|
|
|
int regnum;
|
|
|
|
|
FRAME frame;
|
|
|
|
|
{
|
|
|
|
|
char raw_buffer [MAX_REGISTER_RAW_SIZE];
|
|
|
|
|
char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
int optim;
|
|
|
|
|
value v = allocate_value (type);
|
|
|
|
|
int len = TYPE_LENGTH (type);
|
|
|
|
|
char *value_bytes = 0;
|
|
|
|
|
int value_bytes_copied = 0;
|
|
|
|
|
int num_storage_locs;
|
|
|
|
|
enum lval_type lval;
|
|
|
|
|
|
|
|
|
|
VALUE_REGNO (v) = regnum;
|
|
|
|
|
|
|
|
|
|
num_storage_locs = (len > REGISTER_VIRTUAL_SIZE (regnum) ?
|
|
|
|
|
((len - 1) / REGISTER_RAW_SIZE (regnum)) + 1 :
|
|
|
|
|
1);
|
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
if (num_storage_locs > 1
|
|
|
|
|
#ifdef GDB_TARGET_IS_H8500
|
|
|
|
|
|| TYPE_CODE (type) == TYPE_CODE_PTR
|
|
|
|
|
#endif
|
|
|
|
|
)
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
|
|
|
|
/* Value spread across multiple storage locations. */
|
|
|
|
|
|
|
|
|
|
int local_regnum;
|
|
|
|
|
int mem_stor = 0, reg_stor = 0;
|
|
|
|
|
int mem_tracking = 1;
|
|
|
|
|
CORE_ADDR last_addr = 0;
|
Tue Sep 28 09:45:38 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* symmisc.c (print_symbol): Use %02x not %2x for LOC_CONST_BYTES.
Clean up problems with targets and hosts that have 64 bit longs
and pointers and 32 bit ints.
* breakpoint.c, buildsym.c, c-lang.c, c-valprint.c, ch-lang.c,
ch-valprint.c, core.c, cp-valprint.c, dbxread.c, exec.c,
expprint.c, gdbtypes.c, infcmd.c, language.c, language.h,
m2-lang.c, maint.c, mips-tdep.c, mipsread.c, partial-stab.h,
printcmd.c, remote-vx.c, solib.c, source.c, stack.c, symfile.c,
symmisc.c, symtab.c, valops.c, valprint.c, xcoffexec.c:
Change all printf formats from %x to %lx if outputting an address.
Change la_*_format to use long format.
local_hex_string, local_hex_string_custom now take an unsigned long
argument, change all callers.
* coffread.c (read_coff_symtab): Remove superfluous cast for
complaint output.
* dbxread.c (end_psymtab): Cast MSYMBOL_INFO to long, not int.
* findvar.c, value.h (write_register): Change register value to long.
* gdbtypes.h (struct type): Change `bitsize' to long as
TYPE_FIELD_STATIC_PHYSNAME uses this field as a pointer.
* inferior.h (struct inferior_status): Change type of stop_pc to
CORE_ADDR.
* language.h (local_octal_string, local_octal_string_custom):
Remove prototype, the functions are neither defined nor used.
* mipsread.c (parse_symbol): Use temporary variable for bitsize as
f->bitsize is a long now.
* objfiles.c (add_to_objfile_sections, build_objfile_section_table):
Use unsigned long casts instead of int for abusing sections_end
pointer as integer.
* stack.c (parse_frame_specification): Change type of `args' to
CORE_ADDR for SETUP_ARBITRARY_FRAME.
* printcmd.c (make_vasize): Allow redefinition via MAKEVA_SIZE.
* mipsread.c (parse_type): Alpha cc now supports the t->continued
bit, update algorithm to match the way the compiler uses it.
1993-09-28 18:43:25 +01:00
|
|
|
|
CORE_ADDR first_addr = 0;
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
value_bytes = (char *) alloca (len + MAX_REGISTER_RAW_SIZE);
|
|
|
|
|
|
|
|
|
|
/* Copy all of the data out, whereever it may be. */
|
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
#ifdef GDB_TARGET_IS_H8500
|
|
|
|
|
/* This piece of hideosity is required because the H8500 treats registers
|
|
|
|
|
differently depending upon whether they are used as pointers or not. As a
|
|
|
|
|
pointer, a register needs to have a page register tacked onto the front.
|
|
|
|
|
An alternate way to do this would be to have gcc output different register
|
|
|
|
|
numbers for the pointer & non-pointer form of the register. But, it
|
|
|
|
|
doesn't, so we're stuck with this. */
|
|
|
|
|
|
1993-05-18 00:48:07 +02:00
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_PTR
|
|
|
|
|
&& len > 2)
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
1993-03-30 17:59:01 +02:00
|
|
|
|
int page_regnum;
|
|
|
|
|
|
|
|
|
|
switch (regnum)
|
|
|
|
|
{
|
|
|
|
|
case R0_REGNUM: case R1_REGNUM: case R2_REGNUM: case R3_REGNUM:
|
|
|
|
|
page_regnum = SEG_D_REGNUM;
|
|
|
|
|
break;
|
|
|
|
|
case R4_REGNUM: case R5_REGNUM:
|
|
|
|
|
page_regnum = SEG_E_REGNUM;
|
|
|
|
|
break;
|
|
|
|
|
case R6_REGNUM: case R7_REGNUM:
|
|
|
|
|
page_regnum = SEG_T_REGNUM;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
value_bytes[0] = 0;
|
|
|
|
|
get_saved_register (value_bytes + 1,
|
1991-03-28 17:26:26 +01:00
|
|
|
|
&optim,
|
|
|
|
|
&addr,
|
|
|
|
|
frame,
|
1993-03-30 17:59:01 +02:00
|
|
|
|
page_regnum,
|
1991-03-28 17:26:26 +01:00
|
|
|
|
&lval);
|
1993-03-30 17:59:01 +02:00
|
|
|
|
|
1991-03-28 17:26:26 +01:00
|
|
|
|
if (lval == lval_register)
|
|
|
|
|
reg_stor++;
|
|
|
|
|
else
|
1993-06-09 02:47:13 +02:00
|
|
|
|
mem_stor++;
|
|
|
|
|
first_addr = addr;
|
1993-03-30 17:59:01 +02:00
|
|
|
|
last_addr = addr;
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
get_saved_register (value_bytes + 2,
|
|
|
|
|
&optim,
|
|
|
|
|
&addr,
|
|
|
|
|
frame,
|
|
|
|
|
regnum,
|
|
|
|
|
&lval);
|
|
|
|
|
|
|
|
|
|
if (lval == lval_register)
|
|
|
|
|
reg_stor++;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
mem_stor++;
|
|
|
|
|
mem_tracking = mem_tracking && (addr == last_addr);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
last_addr = addr;
|
|
|
|
|
}
|
1993-03-30 17:59:01 +02:00
|
|
|
|
else
|
|
|
|
|
#endif /* GDB_TARGET_IS_H8500 */
|
|
|
|
|
for (local_regnum = regnum;
|
|
|
|
|
value_bytes_copied < len;
|
|
|
|
|
(value_bytes_copied += REGISTER_RAW_SIZE (local_regnum),
|
|
|
|
|
++local_regnum))
|
|
|
|
|
{
|
|
|
|
|
get_saved_register (value_bytes + value_bytes_copied,
|
|
|
|
|
&optim,
|
|
|
|
|
&addr,
|
|
|
|
|
frame,
|
|
|
|
|
local_regnum,
|
|
|
|
|
&lval);
|
1993-06-09 02:47:13 +02:00
|
|
|
|
|
|
|
|
|
if (regnum == local_regnum)
|
|
|
|
|
first_addr = addr;
|
1993-03-30 17:59:01 +02:00
|
|
|
|
if (lval == lval_register)
|
|
|
|
|
reg_stor++;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
mem_stor++;
|
|
|
|
|
|
|
|
|
|
mem_tracking =
|
|
|
|
|
(mem_tracking
|
|
|
|
|
&& (regnum == local_regnum
|
|
|
|
|
|| addr == last_addr));
|
|
|
|
|
}
|
|
|
|
|
last_addr = addr;
|
|
|
|
|
}
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
if ((reg_stor && mem_stor)
|
|
|
|
|
|| (mem_stor && !mem_tracking))
|
|
|
|
|
/* Mixed storage; all of the hassle we just went through was
|
|
|
|
|
for some good purpose. */
|
|
|
|
|
{
|
|
|
|
|
VALUE_LVAL (v) = lval_reg_frame_relative;
|
|
|
|
|
VALUE_FRAME (v) = FRAME_FP (frame);
|
|
|
|
|
VALUE_FRAME_REGNUM (v) = regnum;
|
|
|
|
|
}
|
|
|
|
|
else if (mem_stor)
|
|
|
|
|
{
|
|
|
|
|
VALUE_LVAL (v) = lval_memory;
|
|
|
|
|
VALUE_ADDRESS (v) = first_addr;
|
|
|
|
|
}
|
|
|
|
|
else if (reg_stor)
|
|
|
|
|
{
|
|
|
|
|
VALUE_LVAL (v) = lval_register;
|
|
|
|
|
VALUE_ADDRESS (v) = first_addr;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
fatal ("value_from_register: Value not stored anywhere!");
|
|
|
|
|
|
|
|
|
|
VALUE_OPTIMIZED_OUT (v) = optim;
|
|
|
|
|
|
|
|
|
|
/* Any structure stored in more than one register will always be
|
|
|
|
|
an integral number of registers. Otherwise, you'd need to do
|
|
|
|
|
some fiddling with the last register copied here for little
|
|
|
|
|
endian machines. */
|
|
|
|
|
|
|
|
|
|
/* Copy into the contents section of the value. */
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (v), value_bytes, len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
1993-06-09 02:47:13 +02:00
|
|
|
|
/* Finally do any conversion necessary when extracting this
|
|
|
|
|
type from more than one register. */
|
|
|
|
|
#ifdef REGISTER_CONVERT_TO_TYPE
|
|
|
|
|
REGISTER_CONVERT_TO_TYPE(regnum, type, VALUE_CONTENTS_RAW(v));
|
|
|
|
|
#endif
|
1991-03-28 17:26:26 +01:00
|
|
|
|
return v;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Data is completely contained within a single register. Locate the
|
|
|
|
|
register's contents in a real register or in core;
|
|
|
|
|
read the data in raw format. */
|
|
|
|
|
|
|
|
|
|
get_saved_register (raw_buffer, &optim, &addr, frame, regnum, &lval);
|
|
|
|
|
VALUE_OPTIMIZED_OUT (v) = optim;
|
|
|
|
|
VALUE_LVAL (v) = lval;
|
|
|
|
|
VALUE_ADDRESS (v) = addr;
|
|
|
|
|
|
|
|
|
|
/* Convert the raw contents to virtual contents.
|
|
|
|
|
(Just copy them if the formats are the same.) */
|
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
REGISTER_CONVERT_TO_VIRTUAL (regnum, raw_buffer, virtual_buffer);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
if (REGISTER_CONVERTIBLE (regnum))
|
|
|
|
|
{
|
|
|
|
|
/* When the raw and virtual formats differ, the virtual format
|
|
|
|
|
corresponds to a specific data type. If we want that type,
|
|
|
|
|
copy the data into the value.
|
|
|
|
|
Otherwise, do a type-conversion. */
|
|
|
|
|
|
|
|
|
|
if (type != REGISTER_VIRTUAL_TYPE (regnum))
|
|
|
|
|
{
|
|
|
|
|
/* eg a variable of type `float' in a 68881 register
|
|
|
|
|
with raw type `extended' and virtual type `double'.
|
|
|
|
|
Fetch it as a `double' and then convert to `float'. */
|
|
|
|
|
v = allocate_value (REGISTER_VIRTUAL_TYPE (regnum));
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (v), virtual_buffer, len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
v = value_cast (type, v);
|
|
|
|
|
}
|
|
|
|
|
else
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (v), virtual_buffer, len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Raw and virtual formats are the same for this register. */
|
|
|
|
|
|
|
|
|
|
#if TARGET_BYTE_ORDER == BIG_ENDIAN
|
|
|
|
|
if (len < REGISTER_RAW_SIZE (regnum))
|
|
|
|
|
{
|
|
|
|
|
/* Big-endian, and we want less than full size. */
|
|
|
|
|
VALUE_OFFSET (v) = REGISTER_RAW_SIZE (regnum) - len;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
1993-03-30 17:59:01 +02:00
|
|
|
|
memcpy (VALUE_CONTENTS_RAW (v), virtual_buffer + VALUE_OFFSET (v), len);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return v;
|
|
|
|
|
}
|
|
|
|
|
|
1991-07-14 09:48:06 +02:00
|
|
|
|
/* Given a struct symbol for a variable or function,
|
1991-03-28 17:26:26 +01:00
|
|
|
|
and a stack frame id,
|
1991-07-14 09:48:06 +02:00
|
|
|
|
return a (pointer to a) struct value containing the properly typed
|
|
|
|
|
address. */
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
|
|
|
|
value
|
|
|
|
|
locate_var_value (var, frame)
|
|
|
|
|
register struct symbol *var;
|
|
|
|
|
FRAME frame;
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR addr = 0;
|
|
|
|
|
struct type *type = SYMBOL_TYPE (var);
|
|
|
|
|
value lazy_value;
|
|
|
|
|
|
|
|
|
|
/* Evaluate it first; if the result is a memory address, we're fine.
|
|
|
|
|
Lazy evaluation pays off here. */
|
|
|
|
|
|
|
|
|
|
lazy_value = read_var_value (var, frame);
|
|
|
|
|
if (lazy_value == 0)
|
1993-03-30 17:59:01 +02:00
|
|
|
|
error ("Address of \"%s\" is unknown.", SYMBOL_SOURCE_NAME (var));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
|
1991-07-14 09:48:06 +02:00
|
|
|
|
if (VALUE_LAZY (lazy_value)
|
|
|
|
|
|| TYPE_CODE (type) == TYPE_CODE_FUNC)
|
1991-03-28 17:26:26 +01:00
|
|
|
|
{
|
|
|
|
|
addr = VALUE_ADDRESS (lazy_value);
|
* defs.h: Incorporate param.h. All users changed.
* param-no-tm.h: Change users to define TM_FILE_OVERRIDE instead.
* param.h, param-no-tm.h: Removed.
* Update copyrights in all changed files.
* dbxread.c, dwarfread.c, inflow.c, infrun.c, m2-exp.y, putenv.c,
solib.c, symtab.h, tm-umax.h, valprint.c: Lint.
* tm-convex.h, tm-hp300hpux.h, tm-merlin.h, tm-sparc.h,
xm-merlin.h: Avoid host include files in target descriptions.
* getpagesize.h: Removed, libiberty copes now.
1991-11-21 19:42:05 +01:00
|
|
|
|
return value_from_longest (lookup_pointer_type (type), (LONGEST) addr);
|
1991-03-28 17:26:26 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Not a memory address; check what the problem was. */
|
|
|
|
|
switch (VALUE_LVAL (lazy_value))
|
|
|
|
|
{
|
|
|
|
|
case lval_register:
|
|
|
|
|
case lval_reg_frame_relative:
|
|
|
|
|
error ("Address requested for identifier \"%s\" which is in a register.",
|
1993-03-30 17:59:01 +02:00
|
|
|
|
SYMBOL_SOURCE_NAME (var));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
error ("Can't take address of \"%s\" which isn't an lvalue.",
|
1993-03-30 17:59:01 +02:00
|
|
|
|
SYMBOL_SOURCE_NAME (var));
|
1991-03-28 17:26:26 +01:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return 0; /* For lint -- never reached */
|
|
|
|
|
}
|