/* Support for printing Fortran values for GDB, the GNU debugger.
- Copyright (C) 1993-1996, 1998-2000, 2003, 2005-2012 Free Software
- Foundation, Inc.
+ Copyright (C) 1993-2020 Free Software Foundation, Inc.
Contributed by Motorola. Adapted from the C definitions by Farooq Butt
(fmbutt@engage.sps.mot.com), additionally worked over by Stan Shebs.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "gdbcore.h"
#include "command.h"
#include "block.h"
+#include "dictionary.h"
+#include "cli/cli-style.h"
+#include "gdbarch.h"
-#if 0
-static int there_is_a_visible_common_named (char *);
-#endif
-
-extern void _initialize_f_valprint (void);
-static void info_common_command (char *, int);
-static void list_all_visible_commons (const char *);
-static void f77_create_arrayprint_offset_tbl (struct type *,
- struct ui_file *);
static void f77_get_dynamic_length_of_aggregate (struct type *);
int f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2];
/* Array which holds offsets to be applied to get a row's elements
for a given array. Array also holds the size of each subarray. */
-/* The following macro gives us the size of the nth dimension, Where
- n is 1 based. */
-
-#define F77_DIM_SIZE(n) (f77_array_offset_tbl[n][1])
-
-/* The following gives us the offset for row n where n is 1-based. */
-
-#define F77_DIM_OFFSET(n) (f77_array_offset_tbl[n][0])
-
-int
+LONGEST
f77_get_lowerbound (struct type *type)
{
if (TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type))
return TYPE_ARRAY_LOWER_BOUND_VALUE (type);
}
-int
+LONGEST
f77_get_upperbound (struct type *type)
{
if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
* TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type)));
}
-/* Function that sets up the array offset,size table for the array
- type "type". */
-
-static void
-f77_create_arrayprint_offset_tbl (struct type *type, struct ui_file *stream)
-{
- struct type *tmp_type;
- int eltlen;
- int ndimen = 1;
- int upper, lower;
-
- tmp_type = type;
-
- while ((TYPE_CODE (tmp_type) == TYPE_CODE_ARRAY))
- {
- upper = f77_get_upperbound (tmp_type);
- lower = f77_get_lowerbound (tmp_type);
-
- F77_DIM_SIZE (ndimen) = upper - lower + 1;
-
- tmp_type = TYPE_TARGET_TYPE (tmp_type);
- ndimen++;
- }
-
- /* Now we multiply eltlen by all the offsets, so that later we
- can print out array elements correctly. Up till now we
- know an offset to apply to get the item but we also
- have to know how much to add to get to the next item. */
-
- ndimen--;
- eltlen = TYPE_LENGTH (tmp_type);
- F77_DIM_OFFSET (ndimen) = eltlen;
- while (--ndimen > 0)
- {
- eltlen *= F77_DIM_SIZE (ndimen + 1);
- F77_DIM_OFFSET (ndimen) = eltlen;
- }
-}
-
-
-
/* Actual function which prints out F77 arrays, Valaddr == address in
the superior. Address == the address in the inferior. */
const struct value_print_options *options,
int *elts)
{
+ struct type *range_type = TYPE_INDEX_TYPE (check_typedef (type));
+ CORE_ADDR addr = address + embedded_offset;
+ LONGEST lowerbound, upperbound;
int i;
+ get_discrete_bounds (range_type, &lowerbound, &upperbound);
+
if (nss != ndimensions)
{
- for (i = 0;
- (i < F77_DIM_SIZE (nss) && (*elts) < options->print_max);
+ struct gdbarch *gdbarch = get_type_arch (type);
+ size_t dim_size = type_length_units (TYPE_TARGET_TYPE (type));
+ int unit_size = gdbarch_addressable_memory_unit_size (gdbarch);
+ size_t byte_stride = TYPE_ARRAY_BIT_STRIDE (type) / (unit_size * 8);
+ if (byte_stride == 0)
+ byte_stride = dim_size;
+ size_t offs = 0;
+
+ for (i = lowerbound;
+ (i < upperbound + 1 && (*elts) < options->print_max);
i++)
{
+ struct value *subarray = value_from_contents_and_address
+ (TYPE_TARGET_TYPE (type), value_contents_for_printing_const (val)
+ + offs, addr + offs);
+
fprintf_filtered (stream, "( ");
- f77_print_array_1 (nss + 1, ndimensions, TYPE_TARGET_TYPE (type),
- valaddr,
- embedded_offset + i * F77_DIM_OFFSET (nss),
- address,
- stream, recurse, val, options, elts);
+ f77_print_array_1 (nss + 1, ndimensions, value_type (subarray),
+ value_contents_for_printing (subarray),
+ value_embedded_offset (subarray),
+ value_address (subarray),
+ stream, recurse, subarray, options, elts);
+ offs += byte_stride;
fprintf_filtered (stream, ") ");
}
- if (*elts >= options->print_max && i < F77_DIM_SIZE (nss))
+ if (*elts >= options->print_max && i < upperbound)
fprintf_filtered (stream, "...");
}
else
{
- for (i = 0; i < F77_DIM_SIZE (nss) && (*elts) < options->print_max;
+ for (i = lowerbound; i < upperbound + 1 && (*elts) < options->print_max;
i++, (*elts)++)
{
- val_print (TYPE_TARGET_TYPE (type),
- valaddr,
- embedded_offset + i * F77_DIM_OFFSET (ndimensions),
- address, stream, recurse,
- val, options, current_language);
+ struct value *elt = value_subscript ((struct value *)val, i);
+
+ val_print (value_type (elt),
+ value_embedded_offset (elt),
+ value_address (elt), stream, recurse,
+ elt, options, current_language);
- if (i != (F77_DIM_SIZE (nss) - 1))
+ if (i != upperbound)
fprintf_filtered (stream, ", ");
if ((*elts == options->print_max - 1)
- && (i != (F77_DIM_SIZE (nss) - 1)))
+ && (i != upperbound))
fprintf_filtered (stream, "...");
}
}
Type node corrupt! F77 arrays cannot have %d subscripts (%d Max)"),
ndimensions, MAX_FORTRAN_DIMS);
- /* Since F77 arrays are stored column-major, we set up an
- offset table to get at the various row's elements. The
- offset table contains entries for both offset and subarray size. */
-
- f77_create_arrayprint_offset_tbl (type, stream);
-
f77_print_array_1 (1, ndimensions, type, valaddr, embedded_offset,
address, stream, recurse, val, options, &elts);
}
")",
".TRUE.",
".FALSE.",
- "VOID",
+ "void",
+ "{",
+ "}"
};
/* See val_print for a description of the various parameters of this
function; they are identical. */
void
-f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
+f_val_print (struct type *type, int embedded_offset,
CORE_ADDR address, struct ui_file *stream, int recurse,
- const struct value *original_value,
+ struct value *original_value,
const struct value_print_options *options)
{
struct gdbarch *gdbarch = get_type_arch (type);
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- unsigned int i = 0; /* Number of characters printed. */
+ int printed_field = 0; /* Number of fields printed. */
struct type *elttype;
- LONGEST val;
CORE_ADDR addr;
int index;
+ const gdb_byte *valaddr =value_contents_for_printing (original_value);
- CHECK_TYPEDEF (type);
+ type = check_typedef (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_STRING:
case TYPE_CODE_PTR:
if (options->format && options->format != 's')
{
- val_print_scalar_formatted (type, valaddr, embedded_offset,
+ val_print_scalar_formatted (type, embedded_offset,
original_value, options, 0, stream);
break;
}
else
{
+ int want_space = 0;
+
addr = unpack_pointer (type, valaddr + embedded_offset);
elttype = check_typedef (TYPE_TARGET_TYPE (type));
return;
}
- if (options->addressprint && options->format != 's')
- fputs_filtered (paddress (gdbarch, addr), stream);
+ if (options->symbol_print)
+ want_space = print_address_demangle (options, gdbarch, addr,
+ stream, demangle);
+ else if (options->addressprint && options->format != 's')
+ {
+ fputs_filtered (paddress (gdbarch, addr), stream);
+ want_space = 1;
+ }
/* For a pointer to char or unsigned char, also print the string
pointed to, unless pointer is null. */
&& TYPE_CODE (elttype) == TYPE_CODE_INT
&& (options->format == 0 || options->format == 's')
&& addr != 0)
- i = val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1,
- stream, options);
+ {
+ if (want_space)
+ fputs_filtered (" ", stream);
+ val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1,
+ stream, options);
+ }
return;
}
break;
opts.format = (options->format ? options->format
: options->output_format);
- val_print_scalar_formatted (type, valaddr, embedded_offset,
- original_value, options, 0, stream);
+ val_print_scalar_formatted (type, embedded_offset,
+ original_value, &opts, 0, stream);
}
else
- {
- val_print_type_code_int (type, valaddr + embedded_offset, stream);
- /* C and C++ has no single byte int type, char is used instead.
- Since we don't know whether the value is really intended to
- be used as an integer or a character, print the character
- equivalent as well. */
- if (TYPE_LENGTH (type) == 1)
- {
- LONGEST c;
-
- fputs_filtered (" ", stream);
- c = unpack_long (type, valaddr + embedded_offset);
- LA_PRINT_CHAR ((unsigned char) c, type, stream);
- }
- }
+ val_print_scalar_formatted (type, embedded_offset,
+ original_value, options, 0, stream);
break;
case TYPE_CODE_STRUCT:
fprintf_filtered (stream, "( ");
for (index = 0; index < TYPE_NFIELDS (type); index++)
{
- int offset = TYPE_FIELD_BITPOS (type, index) / 8;
-
- val_print (TYPE_FIELD_TYPE (type, index), valaddr,
- embedded_offset + offset,
- address, stream, recurse + 1,
- original_value, options, current_language);
- if (index != TYPE_NFIELDS (type) - 1)
- fputs_filtered (", ", stream);
- }
+ struct value *field = value_field
+ ((struct value *)original_value, index);
+
+ struct type *field_type = check_typedef (TYPE_FIELD_TYPE (type, index));
+
+
+ if (TYPE_CODE (field_type) != TYPE_CODE_FUNC)
+ {
+ const char *field_name;
+
+ if (printed_field > 0)
+ fputs_filtered (", ", stream);
+
+ field_name = TYPE_FIELD_NAME (type, index);
+ if (field_name != NULL)
+ {
+ fputs_filtered (field_name, stream);
+ fputs_filtered (" = ", stream);
+ }
+
+ val_print (value_type (field),
+ value_embedded_offset (field),
+ value_address (field), stream, recurse + 1,
+ field, options, current_language);
+
+ ++printed_field;
+ }
+ }
fprintf_filtered (stream, " )");
break;
case TYPE_CODE_BOOL:
case TYPE_CODE_CHAR:
default:
- generic_val_print (type, valaddr, embedded_offset, address,
+ generic_val_print (type, embedded_offset, address,
stream, recurse, original_value, options,
&f_decorations);
break;
}
- gdb_flush (stream);
}
static void
-list_all_visible_commons (const char *funname)
+info_common_command_for_block (const struct block *block, const char *comname,
+ int *any_printed)
{
- SAVED_F77_COMMON_PTR tmp;
-
- tmp = head_common_list;
-
- printf_filtered (_("All COMMON blocks visible at this level:\n\n"));
-
- while (tmp != NULL)
- {
- if (strcmp (tmp->owning_function, funname) == 0)
- printf_filtered ("%s\n", tmp->name);
-
- tmp = tmp->next;
- }
+ struct block_iterator iter;
+ struct symbol *sym;
+ struct value_print_options opts;
+
+ get_user_print_options (&opts);
+
+ ALL_BLOCK_SYMBOLS (block, iter, sym)
+ if (SYMBOL_DOMAIN (sym) == COMMON_BLOCK_DOMAIN)
+ {
+ const struct common_block *common = SYMBOL_VALUE_COMMON_BLOCK (sym);
+ size_t index;
+
+ gdb_assert (SYMBOL_CLASS (sym) == LOC_COMMON_BLOCK);
+
+ if (comname && (!sym->linkage_name ()
+ || strcmp (comname, sym->linkage_name ()) != 0))
+ continue;
+
+ if (*any_printed)
+ putchar_filtered ('\n');
+ else
+ *any_printed = 1;
+ if (sym->print_name ())
+ printf_filtered (_("Contents of F77 COMMON block '%s':\n"),
+ sym->print_name ());
+ else
+ printf_filtered (_("Contents of blank COMMON block:\n"));
+
+ for (index = 0; index < common->n_entries; index++)
+ {
+ struct value *val = NULL;
+
+ printf_filtered ("%s = ",
+ common->contents[index]->print_name ());
+
+ try
+ {
+ val = value_of_variable (common->contents[index], block);
+ value_print (val, gdb_stdout, &opts);
+ }
+
+ catch (const gdb_exception_error &except)
+ {
+ fprintf_styled (gdb_stdout, metadata_style.style (),
+ "<error reading variable: %s>",
+ except.what ());
+ }
+
+ putchar_filtered ('\n');
+ }
+ }
}
/* This function is used to print out the values in a given COMMON
given name. */
static void
-info_common_command (char *comname, int from_tty)
+info_common_command (const char *comname, int from_tty)
{
- SAVED_F77_COMMON_PTR the_common;
- COMMON_ENTRY_PTR entry;
struct frame_info *fi;
- const char *funname = 0;
- struct symbol *func;
+ const struct block *block;
+ int values_printed = 0;
/* We have been told to display the contents of F77 COMMON
block supposedly visible in this function. Let us
/* The following is generally ripped off from stack.c's routine
print_frame_info(). */
- func = find_pc_function (get_frame_pc (fi));
- if (func)
- {
- /* In certain pathological cases, the symtabs give the wrong
- function (when we are in the first function in a file which
- is compiled without debugging symbols, the previous function
- is compiled with debugging symbols, and the "foo.o" symbol
- that is supposed to tell us where the file with debugging symbols
- ends has been truncated by ar because it is longer than 15
- characters).
-
- So look in the minimal symbol tables as well, and if it comes
- up with a larger address for the function use that instead.
- I don't think this can ever cause any problems; there shouldn't
- be any minimal symbols in the middle of a function.
- FIXME: (Not necessarily true. What about text labels?) */
-
- struct minimal_symbol *msymbol =
- lookup_minimal_symbol_by_pc (get_frame_pc (fi));
-
- if (msymbol != NULL
- && (SYMBOL_VALUE_ADDRESS (msymbol)
- > BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
- funname = SYMBOL_LINKAGE_NAME (msymbol);
- else
- funname = SYMBOL_LINKAGE_NAME (func);
- }
- else
- {
- struct minimal_symbol *msymbol =
- lookup_minimal_symbol_by_pc (get_frame_pc (fi));
-
- if (msymbol != NULL)
- funname = SYMBOL_LINKAGE_NAME (msymbol);
- else /* Got no 'funname', code below will fail. */
- error (_("No function found for frame."));
- }
-
- /* If comname is NULL, we assume the user wishes to see the
- which COMMON blocks are visible here and then return. */
-
- if (comname == 0)
+ block = get_frame_block (fi, 0);
+ if (block == NULL)
{
- list_all_visible_commons (funname);
+ printf_filtered (_("No symbol table info available.\n"));
return;
}
- the_common = find_common_for_function (comname, funname);
-
- if (the_common)
+ while (block)
{
- if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0)
- printf_filtered (_("Contents of blank COMMON block:\n"));
- else
- printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname);
-
- printf_filtered ("\n");
- entry = the_common->entries;
-
- while (entry != NULL)
- {
- print_variable_and_value (NULL, entry->symbol, fi, gdb_stdout, 0);
- entry = entry->next;
- }
+ info_common_command_for_block (block, comname, &values_printed);
+ /* After handling the function's top-level block, stop. Don't
+ continue to its superblock, the block of per-file symbols. */
+ if (BLOCK_FUNCTION (block))
+ break;
+ block = BLOCK_SUPERBLOCK (block);
}
- else
- printf_filtered (_("Cannot locate the common block %s in function '%s'\n"),
- comname, funname);
-}
-
-/* This function is used to determine whether there is a
- F77 common block visible at the current scope called 'comname'. */
-#if 0
-static int
-there_is_a_visible_common_named (char *comname)
-{
- SAVED_F77_COMMON_PTR the_common;
- struct frame_info *fi;
- char *funname = 0;
- struct symbol *func;
-
- if (comname == NULL)
- error (_("Cannot deal with NULL common name!"));
-
- fi = get_selected_frame (_("No frame selected"));
-
- /* The following is generally ripped off from stack.c's routine
- print_frame_info(). */
-
- func = find_pc_function (fi->pc);
- if (func)
+ if (!values_printed)
{
- /* In certain pathological cases, the symtabs give the wrong
- function (when we are in the first function in a file which
- is compiled without debugging symbols, the previous function
- is compiled with debugging symbols, and the "foo.o" symbol
- that is supposed to tell us where the file with debugging symbols
- ends has been truncated by ar because it is longer than 15
- characters).
-
- So look in the minimal symbol tables as well, and if it comes
- up with a larger address for the function use that instead.
- I don't think this can ever cause any problems; there shouldn't
- be any minimal symbols in the middle of a function.
- FIXME: (Not necessarily true. What about text labels?) */
-
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc);
-
- if (msymbol != NULL
- && (SYMBOL_VALUE_ADDRESS (msymbol)
- > BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
- funname = SYMBOL_LINKAGE_NAME (msymbol);
+ if (comname)
+ printf_filtered (_("No common block '%s'.\n"), comname);
else
- funname = SYMBOL_LINKAGE_NAME (func);
- }
- else
- {
- struct minimal_symbol *msymbol =
- lookup_minimal_symbol_by_pc (fi->pc);
-
- if (msymbol != NULL)
- funname = SYMBOL_LINKAGE_NAME (msymbol);
+ printf_filtered (_("No common blocks.\n"));
}
-
- the_common = find_common_for_function (comname, funname);
-
- return (the_common ? 1 : 0);
}
-#endif
void
_initialize_f_valprint (void)
{
add_info ("common", info_common_command,
_("Print out the values contained in a Fortran COMMON block."));
- if (xdb_commands)
- add_com ("lc", class_info, info_common_command,
- _("Print out the values contained in a Fortran COMMON block."));
}
projects / deliverable / binutils-gdb.git / blobdiff