old-cross-binutils/gdb/findvar.c

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/* Find a variable's value in memory, for GDB, the GNU debugger.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 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
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.
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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.
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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"
#include "symtab.h"
#include "gdbtypes.h"
#include "frame.h"
#include "value.h"
#include "gdbcore.h"
#include "inferior.h"
#include "target.h"
#include "gdb_string.h"
#include "gdb_assert.h"
#include "floatformat.h"
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#include "symfile.h" /* for overlay functions */
#include "regcache.h"
#include "user-regs.h"
2003-02-19 David Carlton <carlton@math.stanford.edu> * Makefile.in (SFILES): Add block.c. (block_h): New. (COMMON_OBS): Add block.o. (block.o): New. (x86-64-tdep.o): Add $(block_h). (values.o, valops.o, tracepoint.o, symtab.o, symmisc.o, symfile.o) (stack.o, printcmd.o, p-exp.tab.o, parse.o, objfiles.o) (objc-exp.tab.o, objc-lang.o, nlmread.o, mips-tdep.o, mdebugread.o) (m2-exp.tab.o, linespec.o, jv-lang.o, jv-exp.tab.o, infcmd.o) (f-valprint.o, findvar.o, f-exp.tab.o, expprint.o, coffread.o) (c-exp.tab.o, buildsym.o, breakpoint.o, blockframe.o, ax-gdb.o) (alpha-tdep.o, ada-lang.o, ada-exp.tab.o, mi-cmd-stack.o): Ditto. * value.h: Add opaque declaration for struct block. * parser-defs.h, objc-lang.h, buildsym.h, breakpoint.h: Ditto. * ada-lang.h: Ditto. * x86-64-tdep.c: #include "block.h" * values.c, valops.c, tracepoint.c, symtab.c, symmisc.c: Ditto. * symfile.c, stack.c, printcmd.c, p-exp.y, parse.c: Ditto. * objfiles.c, objc-exp.y, objc-lang.c, nlmread.c: Ditto. * mips-tdep.c, mdebugread.c, m2-exp.y, linespec.c: Ditto. * jv-lang.c, jv-exp.y, infcmd.c, f-valprint.c: Ditto. * findvar.c, f-exp.y, expprint.c, coffread.c, c-exp.y: Ditto. * buildsym.c, breakpoint.c, blockframe.c, ax-gdb.c: Ditto. * alpha-tdep.c, ada-lang.c, ada-exp.y: Ditto. * blockframe.c (blockvector_for_pc_sect): Move to "block.c". (blockvector_for_pc, block_for_pc_sect, block_for_pc): Ditto. * symtab.c (block_function): Ditto. (contained_in): Ditto. * frame.h: Move block_for_pc and block_for_pc_sect declarations to block.h. Add opaque declaration for struct block. * symtab.h: Move block_function and contained_in declarations to block.h. Add opaque declarations for struct block, struct blockvector. (struct block): Move to block.h. (struct blockvector): Ditto. (BLOCK_START, BLOCK_END, BLOCK_FUNCTION, BLOCK_SUPERBLOCK) (BLOCK_GCC_COMPILED, BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM) (BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE) (ALL_BLOCK_SYMBOLS, BLOCK_SHOULD_SORT, BLOCKVECTOR_NBLOCKS) (BLOCKVECTOR_BLOCK, GLOBAL_BLOCK, STATIC_BLOCK, FIRST_LOCAL_BLOCK): Ditto. * block.c: New file. * block.h: New file. 2003-02-19 David Carlton <carlton@math.stanford.edu> * mi-cmd-stack.c: #include "block.h"
2003-02-20 00:01:07 +00:00
#include "block.h"
/* Basic byte-swapping routines. GDB has needed these for a long time...
All extract a target-format integer at ADDR which is LEN bytes long. */
#if TARGET_CHAR_BIT != 8 || HOST_CHAR_BIT != 8
/* 8 bit characters are a pretty safe assumption these days, so we
assume it throughout all these swapping routines. If we had to deal with
9 bit characters, we would need to make len be in bits and would have
to re-write these routines... */
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you lose
#endif
LONGEST
extract_signed_integer (const void *addr, int len)
{
LONGEST retval;
const unsigned char *p;
const unsigned char *startaddr = addr;
const unsigned char *endaddr = startaddr + len;
if (len > (int) sizeof (LONGEST))
error ("\
That operation is not available on integers of more than %d bytes.",
(int) sizeof (LONGEST));
/* Start at the most significant end of the integer, and work towards
the least significant. */
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if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
p = startaddr;
/* Do the sign extension once at the start. */
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retval = ((LONGEST) * p ^ 0x80) - 0x80;
for (++p; p < endaddr; ++p)
retval = (retval << 8) | *p;
}
else
{
p = endaddr - 1;
/* Do the sign extension once at the start. */
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retval = ((LONGEST) * p ^ 0x80) - 0x80;
for (--p; p >= startaddr; --p)
retval = (retval << 8) | *p;
}
return retval;
}
ULONGEST
extract_unsigned_integer (const void *addr, int len)
{
ULONGEST retval;
const unsigned char *p;
const unsigned char *startaddr = addr;
const unsigned char *endaddr = startaddr + len;
if (len > (int) sizeof (ULONGEST))
error ("\
That operation is not available on integers of more than %d bytes.",
(int) sizeof (ULONGEST));
/* Start at the most significant end of the integer, and work towards
the least significant. */
retval = 0;
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if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
for (p = startaddr; p < endaddr; ++p)
retval = (retval << 8) | *p;
}
else
{
for (p = endaddr - 1; p >= startaddr; --p)
retval = (retval << 8) | *p;
}
return retval;
}
/* Sometimes a long long unsigned integer can be extracted as a
LONGEST value. This is done so that we can print these values
better. If this integer can be converted to a LONGEST, this
function returns 1 and sets *PVAL. Otherwise it returns 0. */
int
extract_long_unsigned_integer (const void *addr, int orig_len, LONGEST *pval)
{
char *p, *first_addr;
int len;
len = orig_len;
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if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
for (p = (char *) addr;
len > (int) sizeof (LONGEST) && p < (char *) addr + orig_len;
p++)
{
if (*p == 0)
len--;
else
break;
}
first_addr = p;
}
else
{
first_addr = (char *) addr;
for (p = (char *) addr + orig_len - 1;
len > (int) sizeof (LONGEST) && p >= (char *) addr;
p--)
{
if (*p == 0)
len--;
else
break;
}
}
if (len <= (int) sizeof (LONGEST))
{
*pval = (LONGEST) extract_unsigned_integer (first_addr,
sizeof (LONGEST));
return 1;
}
return 0;
}
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
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/* Treat the bytes at BUF as a pointer of type TYPE, and return the
address it represents. */
CORE_ADDR
extract_typed_address (const void *buf, struct type *type)
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
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{
if (TYPE_CODE (type) != TYPE_CODE_PTR
&& TYPE_CODE (type) != TYPE_CODE_REF)
internal_error (__FILE__, __LINE__,
"extract_typed_address: "
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
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"type is not a pointer or reference");
return POINTER_TO_ADDRESS (type, buf);
}
void
store_signed_integer (void *addr, int len, LONGEST val)
{
unsigned char *p;
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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. */
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if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
for (p = endaddr - 1; p >= startaddr; --p)
{
*p = val & 0xff;
val >>= 8;
}
}
else
{
for (p = startaddr; p < endaddr; ++p)
{
*p = val & 0xff;
val >>= 8;
}
}
}
void
store_unsigned_integer (void *addr, int len, ULONGEST val)
{
unsigned char *p;
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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. */
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if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
{
for (p = endaddr - 1; p >= startaddr; --p)
{
*p = val & 0xff;
val >>= 8;
}
}
else
{
for (p = startaddr; p < endaddr; ++p)
{
*p = val & 0xff;
val >>= 8;
}
}
}
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
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/* Store the address ADDR as a pointer of type TYPE at BUF, in target
form. */
void
store_typed_address (void *buf, struct type *type, CORE_ADDR addr)
{
if (TYPE_CODE (type) != TYPE_CODE_PTR
&& TYPE_CODE (type) != TYPE_CODE_REF)
internal_error (__FILE__, __LINE__,
"store_typed_address: "
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
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"type is not a pointer or reference");
ADDRESS_TO_POINTER (type, buf, addr);
}
/* Return a `value' with the contents of (virtual or cooked) register
REGNUM as found in the specified FRAME. The register's type is
determined by register_type().
NOTE: returns NULL if register value is not available. Caller will
check return value or die! */
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struct value *
value_of_register (int regnum, struct frame_info *frame)
{
CORE_ADDR addr;
int optim;
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struct value *reg_val;
int realnum;
char raw_buffer[MAX_REGISTER_SIZE];
enum lval_type lval;
/* User registers lie completely outside of the range of normal
registers. Catch them early so that the target never sees them. */
if (regnum >= NUM_REGS + NUM_PSEUDO_REGS)
return value_of_user_reg (regnum, frame);
frame_register (frame, regnum, &optim, &lval, &addr, &realnum, raw_buffer);
/* FIXME: cagney/2002-05-15: This test is just bogus.
It indicates that the target failed to supply a value for a
register because it was "not available" at this time. Problem
is, the target still has the register and so get saved_register()
may be returning a value saved on the stack. */
if (register_cached (regnum) < 0)
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return NULL; /* register value not available */
reg_val = allocate_value (register_type (current_gdbarch, regnum));
memcpy (value_contents_raw (reg_val), raw_buffer,
register_size (current_gdbarch, regnum));
VALUE_LVAL (reg_val) = lval;
VALUE_ADDRESS (reg_val) = addr;
VALUE_REGNUM (reg_val) = regnum;
VALUE_OPTIMIZED_OUT (reg_val) = optim;
VALUE_FRAME_ID (reg_val) = get_frame_id (frame);
return reg_val;
}
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
/* Given a pointer of type TYPE in target form in BUF, return the
address it represents. */
CORE_ADDR
unsigned_pointer_to_address (struct type *type, const void *buf)
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
{
return extract_unsigned_integer (buf, TYPE_LENGTH (type));
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
}
CORE_ADDR
signed_pointer_to_address (struct type *type, const void *buf)
{
return extract_signed_integer (buf, TYPE_LENGTH (type));
}
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
/* Given an address, store it as a pointer of type TYPE in target
format in BUF. */
void
unsigned_address_to_pointer (struct type *type, void *buf, CORE_ADDR addr)
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
{
store_unsigned_integer (buf, TYPE_LENGTH (type), addr);
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
}
void
address_to_signed_pointer (struct type *type, void *buf, CORE_ADDR addr)
{
store_signed_integer (buf, TYPE_LENGTH (type), addr);
}
/* Will calling read_var_value or locate_var_value on SYM end
up caring what frame it is being evaluated relative to? SYM must
be non-NULL. */
int
2000-07-30 01:48:28 +00:00
symbol_read_needs_frame (struct symbol *sym)
{
switch (SYMBOL_CLASS (sym))
{
/* All cases listed explicitly so that gcc -Wall will detect it if
1999-07-07 20:19:36 +00:00
we failed to consider one. */
case LOC_COMPUTED:
case LOC_COMPUTED_ARG:
/* FIXME: cagney/2004-01-26: It should be possible to
unconditionally call the SYMBOL_OPS method when available.
2004-02-06 18:30:47 +00:00
Unfortunately DWARF 2 stores the frame-base (instead of the
function) location in a function's symbol. Oops! For the
moment enable this when/where applicable. */
return SYMBOL_OPS (sym)->read_needs_frame (sym);
case LOC_REGISTER:
case LOC_ARG:
case LOC_REF_ARG:
case LOC_REGPARM:
case LOC_REGPARM_ADDR:
case LOC_LOCAL:
case LOC_LOCAL_ARG:
case LOC_BASEREG:
case LOC_BASEREG_ARG:
case LOC_HP_THREAD_LOCAL_STATIC:
return 1;
case LOC_UNDEF:
case LOC_CONST:
case LOC_STATIC:
case LOC_INDIRECT:
case LOC_TYPEDEF:
case LOC_LABEL:
/* Getting the address of a label can be done independently of the block,
1999-07-07 20:19:36 +00:00
even if some *uses* of that address wouldn't work so well without
the right frame. */
case LOC_BLOCK:
case LOC_CONST_BYTES:
case LOC_UNRESOLVED:
case LOC_OPTIMIZED_OUT:
return 0;
}
return 1;
}
/* 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.
If the variable cannot be found, return a zero pointer.
If FRAME is NULL, use the deprecated_selected_frame. */
2001-11-10 21:34:56 +00:00
struct value *
read_var_value (struct symbol *var, struct frame_info *frame)
{
struct value *v;
struct type *type = SYMBOL_TYPE (var);
CORE_ADDR addr;
int len;
v = allocate_value (type);
VALUE_LVAL (v) = lval_memory; /* The most likely possibility. */
len = TYPE_LENGTH (type);
/* FIXME drow/2003-09-06: this call to the selected frame should be
pushed upwards to the callers. */
1999-07-07 20:19:36 +00:00
if (frame == NULL)
frame = deprecated_safe_get_selected_frame ();
switch (SYMBOL_CLASS (var))
{
case LOC_CONST:
/* Put the constant back in target format. */
store_signed_integer (value_contents_raw (v), len,
(LONGEST) SYMBOL_VALUE (var));
VALUE_LVAL (v) = not_lval;
return v;
case LOC_LABEL:
/* Put the constant back in target format. */
if (overlay_debugging)
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
{
CORE_ADDR addr
= symbol_overlayed_address (SYMBOL_VALUE_ADDRESS (var),
SYMBOL_BFD_SECTION (var));
store_typed_address (value_contents_raw (v), type, addr);
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
}
else
store_typed_address (value_contents_raw (v), type,
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
SYMBOL_VALUE_ADDRESS (var));
VALUE_LVAL (v) = not_lval;
return v;
case LOC_CONST_BYTES:
{
char *bytes_addr;
bytes_addr = SYMBOL_VALUE_BYTES (var);
memcpy (value_contents_raw (v), bytes_addr, len);
VALUE_LVAL (v) = not_lval;
return v;
}
case LOC_STATIC:
if (overlay_debugging)
addr = symbol_overlayed_address (SYMBOL_VALUE_ADDRESS (var),
SYMBOL_BFD_SECTION (var));
else
addr = SYMBOL_VALUE_ADDRESS (var);
break;
case LOC_INDIRECT:
{
/* The import slot does not have a real address in it from the
dynamic loader (dld.sl on HP-UX), if the target hasn't
begun execution yet, so check for that. */
CORE_ADDR locaddr;
struct value *loc;
if (!target_has_execution)
error ("\
Attempt to access variable defined in different shared object or load module when\n\
addresses have not been bound by the dynamic loader. Try again when executable is running.");
1999-07-07 20:19:36 +00:00
locaddr = SYMBOL_VALUE_ADDRESS (var);
loc = value_at (lookup_pointer_type (type), locaddr);
addr = value_as_address (loc);
}
case LOC_ARG:
if (frame == NULL)
return 0;
addr = get_frame_args_address (frame);
if (!addr)
return 0;
addr += SYMBOL_VALUE (var);
break;
case LOC_REF_ARG:
{
struct value *ref;
CORE_ADDR argref;
if (frame == NULL)
return 0;
argref = get_frame_args_address (frame);
if (!argref)
return 0;
argref += SYMBOL_VALUE (var);
ref = value_at (lookup_pointer_type (type), argref);
addr = value_as_address (ref);
break;
}
case LOC_LOCAL:
case LOC_LOCAL_ARG:
if (frame == NULL)
return 0;
addr = get_frame_locals_address (frame);
addr += SYMBOL_VALUE (var);
break;
case LOC_BASEREG:
case LOC_BASEREG_ARG:
case LOC_HP_THREAD_LOCAL_STATIC:
{
2001-11-10 21:34:56 +00:00
struct value *regval;
1999-07-07 20:19:36 +00:00
regval = value_from_register (lookup_pointer_type (type),
SYMBOL_BASEREG (var), frame);
if (regval == NULL)
error ("Value of base register not available.");
addr = value_as_address (regval);
1999-07-07 20:19:36 +00:00
addr += SYMBOL_VALUE (var);
break;
}
1999-07-07 20:19:36 +00:00
case LOC_TYPEDEF:
error ("Cannot look up value of a typedef");
break;
case LOC_BLOCK:
if (overlay_debugging)
1999-07-07 20:19:36 +00:00
VALUE_ADDRESS (v) = symbol_overlayed_address
(BLOCK_START (SYMBOL_BLOCK_VALUE (var)), SYMBOL_BFD_SECTION (var));
else
VALUE_ADDRESS (v) = BLOCK_START (SYMBOL_BLOCK_VALUE (var));
return v;
case LOC_REGISTER:
case LOC_REGPARM:
case LOC_REGPARM_ADDR:
{
struct block *b;
int regno = SYMBOL_VALUE (var);
2001-11-10 21:34:56 +00:00
struct value *regval;
if (frame == NULL)
return 0;
b = get_frame_block (frame, 0);
if (SYMBOL_CLASS (var) == LOC_REGPARM_ADDR)
{
regval = value_from_register (lookup_pointer_type (type),
1999-07-07 20:19:36 +00:00
regno,
frame);
if (regval == NULL)
error ("Value of register variable not available.");
addr = value_as_address (regval);
VALUE_LVAL (v) = lval_memory;
}
else
{
regval = value_from_register (type, regno, frame);
if (regval == NULL)
error ("Value of register variable not available.");
return regval;
}
}
break;
case LOC_COMPUTED:
case LOC_COMPUTED_ARG:
/* FIXME: cagney/2004-01-26: It should be possible to
unconditionally call the SYMBOL_OPS method when available.
2004-02-06 18:30:47 +00:00
Unfortunately DWARF 2 stores the frame-base (instead of the
function) location in a function's symbol. Oops! For the
moment enable this when/where applicable. */
if (frame == 0 && SYMBOL_OPS (var)->read_needs_frame (var))
return 0;
return SYMBOL_OPS (var)->read_variable (var, frame);
case LOC_UNRESOLVED:
{
struct minimal_symbol *msym;
2003-02-25 David Carlton <carlton@math.stanford.edu> * symtab.h (SYMBOL_NATURAL_NAME): New macro. (SYMBOL_LINKAGE_NAME): Ditto. (SYMBOL_PRINT_NAME): Use SYMBOL_NATURAL_NAME and SYMBOL_LINKAGE_NAME. (struct general_symbol_info): Expand comment. (DEPRECATED_SYMBOL_NAME): Rename from SYMBOL_NAME. (SYMBOL_MATCHES_NAME): Use DEPRECATED_SYMBOL_NAME. (SYMBOL_MATCHES_REGEXP): Ditto. * symtab.c (symbol_natural_name): New function. * objfiles.h: Replace all uses of SYMBOL_NAME by DEPRECATED_SYMBOL_NAME. * xcoffread.c, valops.c, typeprint.c, tracepoint.c: Ditto. * symtab.c, symmisc.c, symfile.c, stack.c, stabsread.c: Ditto. * somsolib.c, sol-thread.c, rs6000-tdep.c, p-valprint.c: Ditto. * printcmd.c, objfiles.c, objc-lang.c, mipsread.c: Ditto. * minsyms.c, mdebugread.c, linespec.c, jv-lang.c: Ditto. * i386-tdep.c, i386-linux-tdep.c, hpread.c, hppa-tdep.c: Ditto. * gnu-v2-abi.c, f-valprint.c, findvar.c, expprint.c: Ditto. * dwarfread.c, dwarf2read.c, dbxread.c, c-valprint.c: Ditto. * cp-valprint.c, coffread.c, buildsym.c, breakpoint.c: Ditto. * blockframe.c, ax-gdb.c, arm-linux-tdep.c, ada-lang.c: Ditto. * ada-exp.y: Ditto. * ada-exp.y: Update copyright. * sol-thread.c, mipsread.c, jv-lang.c, f-valprint.c: Ditto. * cp-valprint.c: Ditto. 2003-02-25 David Carlton <carlton@math.stanford.edu> * generic/gdbtk.h: Replace all instances of SYMBOL_NAME by DEPRECATED_SYMBOL_NAME. * generic/gdbtk-stack.c, generic/gdbtk-cmds.c: Ditto. * generic/gdbtk-stack.c, generic/gdbtk-cmds.c: Update copyright. 2003-02-25 David Carlton <carlton@math.stanford.edu> * mi-cmd-stack.c: Replace all instances of SYMBOL_NAME with DEPRECATED_SYMBOL_NAME. Update copyright.
2003-02-25 21:36:23 +00:00
msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (var), NULL, NULL);
if (msym == NULL)
return 0;
if (overlay_debugging)
addr = symbol_overlayed_address (SYMBOL_VALUE_ADDRESS (msym),
SYMBOL_BFD_SECTION (msym));
else
addr = SYMBOL_VALUE_ADDRESS (msym);
}
break;
case LOC_OPTIMIZED_OUT:
VALUE_LVAL (v) = not_lval;
VALUE_OPTIMIZED_OUT (v) = 1;
return v;
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.
NOTE: returns NULL if register value is not available.
Caller will check return value or die! */
2001-11-10 21:34:56 +00:00
struct value *
2000-07-30 01:48:28 +00:00
value_from_register (struct type *type, int regnum, struct frame_info *frame)
{
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
struct gdbarch *gdbarch = get_frame_arch (frame);
2001-11-10 21:34:56 +00:00
struct value *v = allocate_value (type);
CHECK_TYPEDEF (type);
if (TYPE_LENGTH (type) == 0)
{
/* It doesn't matter much what we return for this: since the
length is zero, it could be anything. But if allowed to see
a zero-length type, the register-finding loop below will set
neither mem_stor nor reg_stor, and then report an internal
error.
Zero-length types can legitimately arise from declarations
like 'struct {}' (a GCC extension, not valid ISO C). GDB may
also create them when it finds bogus debugging information;
for example, in GCC 2.95.4 and binutils 2.11.93.0.2, the
STABS BINCL->EXCL compression process can create bad type
numbers. GDB reads these as TYPE_CODE_UNDEF types, with zero
length. (That bug is actually the only known way to get a
zero-length value allocated to a register --- which is what
it takes to make it here.)
We'll just attribute the value to the original register. */
VALUE_LVAL (v) = lval_register;
VALUE_ADDRESS (v) = regnum;
VALUE_REGNUM (v) = regnum;
}
else if (CONVERT_REGISTER_P (regnum, type))
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
{
/* The ISA/ABI need to something weird when obtaining the
specified value from this register. It might need to
re-order non-adjacent, starting with REGNUM (see MIPS and
i386). It might need to convert the [float] register into
the corresponding [integer] type (see Alpha). The assumption
is that REGISTER_TO_VALUE populates the entire value
including the location. */
REGISTER_TO_VALUE (frame, regnum, type, value_contents_raw (v));
VALUE_LVAL (v) = lval_register;
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
VALUE_FRAME_ID (v) = get_frame_id (frame);
VALUE_REGNUM (v) = regnum;
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
}
else
{
int local_regnum;
int mem_stor = 0, reg_stor = 0;
int mem_tracking = 1;
CORE_ADDR last_addr = 0;
CORE_ADDR first_addr = 0;
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
int first_realnum = regnum;
int len = TYPE_LENGTH (type);
int value_bytes_copied;
int optimized = 0;
char *value_bytes = (char *) alloca (len + MAX_REGISTER_SIZE);
/* Copy all of the data out, whereever it may be. */
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
for (local_regnum = regnum, value_bytes_copied = 0;
value_bytes_copied < len;
2004-08-02 Andrew Cagney <cagney@gnu.org> Replace DEPRECATED_REGISTER_RAW_SIZE with register_size. * rs6000-tdep.c (rs6000_push_dummy_call) (rs6000_extract_return_value): Use register_size. * xstormy16-tdep.c (xstormy16_get_saved_register) (xstormy16_extract_return_value): Ditto. * valops.c (value_assign): Ditto. * v850ice.c (v850ice_fetch_registers, v850ice_store_registers): * v850-tdep.c (v850_extract_return_value): Ditto. * tracepoint.c (collect_symbol): Ditto. * target.c (debug_print_register): Ditto. * stack.c (frame_info): Ditto. * rs6000-nat.c (ARCH64, fetch_register, store_register): Ditto. * rom68k-rom.c (rom68k_supply_one_register): Ditto. * remote.c (struct packet_reg, remote_wait, remote_async_wait) (store_register_using_P): Ditto. * remote-vxmips.c (vx_read_register, vx_write_register): Ditto. * remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump, sub2_from_pc): Ditto. * regcache.c (deprecated_read_register_bytes) (deprecated_write_register_bytes, read_register) (write_register): Ditto. * ppc-linux-nat.c (fetch_altivec_register, fetch_register) (supply_vrregset, store_altivec_register, fill_vrregset): Ditto. * monitor.c (monitor_supply_register, monitor_fetch_register) (monitor_store_register): Ditto. * mn10300-tdep.c (mn10300_pop_frame_regular) (mn10300_print_register): Ditto. * mipsv4-nat.c (fill_fpregset): Ditto. * mips-linux-tdep.c (supply_32bit_reg, fill_fpregset) (mips64_fill_fpregset): Ditto. * mi/mi-main.c (register_changed_p, get_register) (mi_cmd_data_write_register_values): Ditto. * lynx-nat.c (fetch_inferior_registers, store_inferior_registers): * irix5-nat.c (fill_gregset, fetch_core_registers): * infrun.c (write_inferior_status_register): Ditto. * infptrace.c (fetch_register, store_register): Ditto. * infcmd.c (default_print_registers_info): Ditto. * ia64-linux-nat.c (COPY_REG, fill_fpregset): Ditto. * ia64-aix-nat.c (COPY_REG, fill_gregset): Ditto. * i386gnu-nat.c (gnu_store_registers, fill): Ditto. * hpux-thread.c (hpux_thread_fetch_registers) (hpux_thread_store_registers): Ditto. * hppah-nat.c (store_inferior_registers, fetch_register): * findvar.c (value_from_register): Ditto. * dve3900-rom.c (fetch_bitmapped_register): * cris-tdep.c (cris_gdbarch_init): Ditto. * alpha-tdep.h: Ditto. * aix-thread.c (pd_enable, fill_sprs64, fill_sprs32): Ditto.
2004-08-03 00:57:27 +00:00
(value_bytes_copied += register_size (current_gdbarch, local_regnum),
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
++local_regnum))
{
int realnum;
int optim;
enum lval_type lval;
CORE_ADDR addr;
frame_register (frame, local_regnum, &optim, &lval, &addr,
&realnum, value_bytes + value_bytes_copied);
optimized += optim;
if (register_cached (local_regnum) == -1)
return NULL; /* register value not available */
if (regnum == local_regnum)
{
first_addr = addr;
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
first_realnum = realnum;
}
if (lval == lval_register)
reg_stor++;
else
{
mem_stor++;
/* FIXME: cagney/2004-11-12: I think this is trying to
check that the stored registers are adjacent in
memory. It isn't doing a good job? */
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
mem_tracking = (mem_tracking
&& (regnum == local_regnum
|| addr == last_addr));
}
last_addr = addr;
}
if (mem_tracking && mem_stor && !reg_stor)
{
VALUE_LVAL (v) = lval_memory;
VALUE_ADDRESS (v) = first_addr;
}
else
{
VALUE_LVAL (v) = lval_register;
VALUE_FRAME_ID (v) = get_frame_id (frame);
VALUE_REGNUM (v) = regnum;
}
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
VALUE_OPTIMIZED_OUT (v) = optimized;
/* Any structure stored in more than one register will always be
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
an integral number of registers. Otherwise, you need to do
1999-07-07 20:19:36 +00:00
some fiddling with the last register copied here for little
endian machines. */
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG
2004-08-02 Andrew Cagney <cagney@gnu.org> Replace DEPRECATED_REGISTER_RAW_SIZE with register_size. * rs6000-tdep.c (rs6000_push_dummy_call) (rs6000_extract_return_value): Use register_size. * xstormy16-tdep.c (xstormy16_get_saved_register) (xstormy16_extract_return_value): Ditto. * valops.c (value_assign): Ditto. * v850ice.c (v850ice_fetch_registers, v850ice_store_registers): * v850-tdep.c (v850_extract_return_value): Ditto. * tracepoint.c (collect_symbol): Ditto. * target.c (debug_print_register): Ditto. * stack.c (frame_info): Ditto. * rs6000-nat.c (ARCH64, fetch_register, store_register): Ditto. * rom68k-rom.c (rom68k_supply_one_register): Ditto. * remote.c (struct packet_reg, remote_wait, remote_async_wait) (store_register_using_P): Ditto. * remote-vxmips.c (vx_read_register, vx_write_register): Ditto. * remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump, sub2_from_pc): Ditto. * regcache.c (deprecated_read_register_bytes) (deprecated_write_register_bytes, read_register) (write_register): Ditto. * ppc-linux-nat.c (fetch_altivec_register, fetch_register) (supply_vrregset, store_altivec_register, fill_vrregset): Ditto. * monitor.c (monitor_supply_register, monitor_fetch_register) (monitor_store_register): Ditto. * mn10300-tdep.c (mn10300_pop_frame_regular) (mn10300_print_register): Ditto. * mipsv4-nat.c (fill_fpregset): Ditto. * mips-linux-tdep.c (supply_32bit_reg, fill_fpregset) (mips64_fill_fpregset): Ditto. * mi/mi-main.c (register_changed_p, get_register) (mi_cmd_data_write_register_values): Ditto. * lynx-nat.c (fetch_inferior_registers, store_inferior_registers): * irix5-nat.c (fill_gregset, fetch_core_registers): * infrun.c (write_inferior_status_register): Ditto. * infptrace.c (fetch_register, store_register): Ditto. * infcmd.c (default_print_registers_info): Ditto. * ia64-linux-nat.c (COPY_REG, fill_fpregset): Ditto. * ia64-aix-nat.c (COPY_REG, fill_gregset): Ditto. * i386gnu-nat.c (gnu_store_registers, fill): Ditto. * hpux-thread.c (hpux_thread_fetch_registers) (hpux_thread_store_registers): Ditto. * hppah-nat.c (store_inferior_registers, fetch_register): * findvar.c (value_from_register): Ditto. * dve3900-rom.c (fetch_bitmapped_register): * cris-tdep.c (cris_gdbarch_init): Ditto. * alpha-tdep.h: Ditto. * aix-thread.c (pd_enable, fill_sprs64, fill_sprs32): Ditto.
2004-08-03 00:57:27 +00:00
&& len < register_size (current_gdbarch, regnum))
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
/* Big-endian, and we want less than full size. */
v->offset = register_size (current_gdbarch, regnum) - len;
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
else
v->offset = 0;
memcpy (value_contents_raw (v), value_bytes + value_offset (v), len);
}
return v;
}
2003-06-14 Andrew Cagney <cagney@redhat.com> Mark Kettenis <kettenis@gnu.org> * gdbarch.sh (CONVERT_REGISTER_P): Add "type" parameter. (REGISTER_TO_VALUE, VALUE_TO_REGISTER): Replace raw buffer parameter with "frame". * gdbarch.h, gdbarch.c: Re-generate. * frame.h (put_frame_register): Declare. * frame.c (put_frame_register): New function. * arch-utils.c (legacy_convert_register_p): Add "type" parameter. (legacy_register_to_value): Rewrite, use "frame" to get the register value. (legacy_value_to_register): Rewrite, use "frame" to find the register's location before storing. * arch-utils.h (legacy_convert_register_p): Update. (legacy_register_to_value, legacy_value_to_register): Update. * findvar.c (value_from_register): Rewrite, eliminate use of REGISTER_CONVERT_TO_TYPE, pass "type" to CONVERT_REGISTER_P, pass "frame" to REGISTER_TO_VALUE. * valops.c (value_assign): Move the CONVERT_REGISTER code to the lval_reg_frame_relative + lval_register branch of the switch. Do not use REGISTER_CONVERT_FROM_TYPE. Use put_frame_register. * i386-tdep.c (I386_EBX_REGNUM, I386_ECX_REGNUM, I386_ESI_REGNUM, I386_EDI_REGNUM): New defines. (i386_next_regnum, i386_convert_register_p, i386_register_to_value, i386_value_to_register): New functions. (i386_register_convertible, i386_register_convert_to_virtual, i386_convert_to_raw): Remove functions. (i386_gdbarch_init): Set convert_register_p, register_to_value and value_to_register instead of register_convertible, register_convert_to_virtual and register_convert_to_raw. * mips-tdep.c (mips_convert_register_p): New function. (mips_value_to_register): Replace mips_register_convert_from_type. (mips_register_to_value): Replace mips_register_convert_to_type. (mips_gdbarch_init): Set conver_register_p, value_to_register and register_to_value. * alpha-tdep.c (alpha_convert_register_p): Update. (alpha_value_to_register): Update, store the register. (alpha_register_to_value): Update, fetch the register.
2003-06-14 22:35:25 +00:00
/* Given a struct symbol for a variable or function,
and a stack frame id,
return a (pointer to a) struct value containing the properly typed
address. */
2001-11-10 21:34:56 +00:00
struct value *
locate_var_value (struct symbol *var, struct frame_info *frame)
{
CORE_ADDR addr = 0;
struct type *type = SYMBOL_TYPE (var);
2001-11-10 21:34:56 +00:00
struct 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)
2003-02-20 David Carlton <carlton@math.stanford.edu> * symtab.h (SYMBOL_PRINT_NAME): Rename from SYMBOL_SOURCE_NAME; expand comment. * ada-lang.c (user_select_syms, ada_finish_decode_line_1): Replace SYMBOL_PRINT_NAME with SYMBOL_SOURCE_NAME. * ada-typeprint.c (ada_typedef_print): Ditto. * ax-gdb.c (gen_var_ref): Ditto. * breakpoint.c (print_one_breakpoint): Ditto. * buildsym.c (finish_block): Ditto. * c-valprint.c (c_val_print): Ditto. * expprint.c (print_subexp): Ditto. * findvar.c (locate_var_value): Ditto. * infcmd.c (jump_command): Ditto. * linespec.c (decode_line_2, decode_compound): Ditto. * maint.c (maintenance_translate_address): Ditto. * objc-lang.c (compare_selectors, compare_classes): Ditto. * printcmd.c (build_address_symbolic, sym_info, print_frame_args): Ditto. * p-valprint.c (pascal_val_print): Ditto. * stabsread.c (define_symbol): Ditto. * stack.c (print_frame, frame_info, print_block_frame_locals) (print_frame_arg_vars, return_command): Ditto. * symfile.c (compare_symbols, compare_psymbols): Ditto. * symmisc.c (print_symbol): Ditto. * symtab.c (lookup_partial_symbol, lookup_block_symbol) (compare_search_syms, print_symbol_info, print_msymbol_info) (rbreak_command): Ditto. * tracepoint.c (tracepoints_info): Ditto. * typeprint.c (typedef_print): Ditto. * valops.c (value_of_variable, hand_function_call): Ditto. * cli/cli-cmds.c (edit_command, list_command): Ditto. * ada-typeprint.c: Update Copyright. * infcmd.c, objc-lang.c, p-valprint.c, symmisc.c: Ditto. * tracepoint.c, cli/cli-cmds.c: Ditto.
2003-02-20 17:17:25 +00:00
error ("Address of \"%s\" is unknown.", SYMBOL_PRINT_NAME (var));
if (value_lazy (lazy_value)
|| TYPE_CODE (type) == TYPE_CODE_FUNC)
{
2001-11-10 21:34:56 +00:00
struct value *val;
addr = VALUE_ADDRESS (lazy_value);
* gdbarch.sh (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Two new functions which architectures can redefine, defaulting to generic_pointer_to_address and generic_address_to_pointer. * findvar.c (extract_typed_address, store_typed_address, generic_pointer_to_address, generic_address_to_pointer): New functions. (POINTER_TO_ADDRESS, ADDRESS_TO_POINTER): Provide default definitions. (extract_address, store_address): Doc fixes. * values.c (value_as_pointer): Doc fix. (value_from_pointer): New function. * defs.h (extract_typed_address, store_typed_address): New declarations. * inferior.h (generic_address_to_pointer, generic_pointer_to_address): New declarations. * value.h (value_from_pointer): New declaration. * ax-gdb.c (const_var_ref): Use value_from_pointer, not value_from_longest. * blockframe.c (generic_push_dummy_frame): Use read_pc and read_sp, not read_register. * c-valprint.c (c_val_print): Use extract_typed_address instead of extract_address to extract vtable entries and references. * cp-valprint.c (cp_print_value_fields): Use value_from_pointer instead of value_from_longest to extract the vtable's address. * eval.c (evaluate_subexp_standard): Use value_from_pointer instead of value_from_longest to compute `this', and for doing pointer-to-member dereferencing. * findvar.c (read_register): Use extract_unsigned_integer, not extract_address. (read_var_value): Use store_typed_address instead of store_address for building label values. (locate_var_value): Use value_from_pointer instead of value_from_longest. * hppa-tdep.c (find_stub_with_shl_get): Use value_from_pointer, instead of value_from_longest, to build arguments to __d_shl_get. * printcmd.c (set_next_address): Use value_from_pointer, not value_from_longest. (x_command): Use value_from_pointer, not value_from_longest. * tracepoint.c (set_traceframe_context): Use value_from_pointer, not value_from_longest. * valarith.c (value_add, value_sub): Use value_from_pointer, not value_from_longest. * valops.c (find_function_in_inferior, value_coerce_array, value_coerce_function, value_addr, hand_function_call): Same. * value.h (COERCE_REF): Use unpack_pointer, not unpack_long. * values.c (unpack_long): Use extract_typed_address to produce addresses from pointers and references, not extract_address. (value_from_longest): Use store_typed_address instead of store_address to produce pointer and reference values.
2000-04-14 18:43:41 +00:00
val = value_from_pointer (lookup_pointer_type (type), addr);
return val;
}
/* Not a memory address; check what the problem was. */
1999-07-07 20:19:36 +00:00
switch (VALUE_LVAL (lazy_value))
{
case lval_register:
gdb_assert (REGISTER_NAME (VALUE_REGNUM (lazy_value)) != NULL
&& *REGISTER_NAME (VALUE_REGNUM (lazy_value)) != '\0');
error("Address requested for identifier "
"\"%s\" which is in register $%s",
2003-02-20 David Carlton <carlton@math.stanford.edu> * symtab.h (SYMBOL_PRINT_NAME): Rename from SYMBOL_SOURCE_NAME; expand comment. * ada-lang.c (user_select_syms, ada_finish_decode_line_1): Replace SYMBOL_PRINT_NAME with SYMBOL_SOURCE_NAME. * ada-typeprint.c (ada_typedef_print): Ditto. * ax-gdb.c (gen_var_ref): Ditto. * breakpoint.c (print_one_breakpoint): Ditto. * buildsym.c (finish_block): Ditto. * c-valprint.c (c_val_print): Ditto. * expprint.c (print_subexp): Ditto. * findvar.c (locate_var_value): Ditto. * infcmd.c (jump_command): Ditto. * linespec.c (decode_line_2, decode_compound): Ditto. * maint.c (maintenance_translate_address): Ditto. * objc-lang.c (compare_selectors, compare_classes): Ditto. * printcmd.c (build_address_symbolic, sym_info, print_frame_args): Ditto. * p-valprint.c (pascal_val_print): Ditto. * stabsread.c (define_symbol): Ditto. * stack.c (print_frame, frame_info, print_block_frame_locals) (print_frame_arg_vars, return_command): Ditto. * symfile.c (compare_symbols, compare_psymbols): Ditto. * symmisc.c (print_symbol): Ditto. * symtab.c (lookup_partial_symbol, lookup_block_symbol) (compare_search_syms, print_symbol_info, print_msymbol_info) (rbreak_command): Ditto. * tracepoint.c (tracepoints_info): Ditto. * typeprint.c (typedef_print): Ditto. * valops.c (value_of_variable, hand_function_call): Ditto. * cli/cli-cmds.c (edit_command, list_command): Ditto. * ada-typeprint.c: Update Copyright. * infcmd.c, objc-lang.c, p-valprint.c, symmisc.c: Ditto. * tracepoint.c, cli/cli-cmds.c: Ditto.
2003-02-20 17:17:25 +00:00
SYMBOL_PRINT_NAME (var),
REGISTER_NAME (VALUE_REGNUM (lazy_value)));
break;
default:
error ("Can't take address of \"%s\" which isn't an lvalue.",
2003-02-20 David Carlton <carlton@math.stanford.edu> * symtab.h (SYMBOL_PRINT_NAME): Rename from SYMBOL_SOURCE_NAME; expand comment. * ada-lang.c (user_select_syms, ada_finish_decode_line_1): Replace SYMBOL_PRINT_NAME with SYMBOL_SOURCE_NAME. * ada-typeprint.c (ada_typedef_print): Ditto. * ax-gdb.c (gen_var_ref): Ditto. * breakpoint.c (print_one_breakpoint): Ditto. * buildsym.c (finish_block): Ditto. * c-valprint.c (c_val_print): Ditto. * expprint.c (print_subexp): Ditto. * findvar.c (locate_var_value): Ditto. * infcmd.c (jump_command): Ditto. * linespec.c (decode_line_2, decode_compound): Ditto. * maint.c (maintenance_translate_address): Ditto. * objc-lang.c (compare_selectors, compare_classes): Ditto. * printcmd.c (build_address_symbolic, sym_info, print_frame_args): Ditto. * p-valprint.c (pascal_val_print): Ditto. * stabsread.c (define_symbol): Ditto. * stack.c (print_frame, frame_info, print_block_frame_locals) (print_frame_arg_vars, return_command): Ditto. * symfile.c (compare_symbols, compare_psymbols): Ditto. * symmisc.c (print_symbol): Ditto. * symtab.c (lookup_partial_symbol, lookup_block_symbol) (compare_search_syms, print_symbol_info, print_msymbol_info) (rbreak_command): Ditto. * tracepoint.c (tracepoints_info): Ditto. * typeprint.c (typedef_print): Ditto. * valops.c (value_of_variable, hand_function_call): Ditto. * cli/cli-cmds.c (edit_command, list_command): Ditto. * ada-typeprint.c: Update Copyright. * infcmd.c, objc-lang.c, p-valprint.c, symmisc.c: Ditto. * tracepoint.c, cli/cli-cmds.c: Ditto.
2003-02-20 17:17:25 +00:00
SYMBOL_PRINT_NAME (var));
break;
}
1999-07-07 20:19:36 +00:00
return 0; /* For lint -- never reached */
}