199b2450f6
Change all references to stdout/stderr to gdb_stdout/gdb_stderr. Replace all calls to stdio output functions with calls to corresponding _unfiltered functions (`fprintf_unfiltered') Replaced calls to fopen for output to gdb_fopen. Added sufficient goo to utils.c and defs.h to make the above work. The net effect is that stdio output functions are only directly used in utils.c. Elsewhere, the _unfiltered and _filtered functions and GDB_FILE type are used. In the near future, GDB_FILE will stop being equivalant to FILE. The semantics of some commands has changed in a very subtle way: called in the right context, they may cause new occurences of prompt_for_continue() behavior. The testsuite doesn't notice anything like this, though. Please respect this change by not reintroducing stdio output dependencies in the main body of gdb code. All output from commands should go to a GDB_FILE. Target-specific code can still use stdio directly to communicate with targets.
333 lines
9 KiB
C
333 lines
9 KiB
C
/* Support for printing Chill values for GDB, the GNU debugger.
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Copyright 1986, 1988, 1989, 1991 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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "obstack.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "valprint.h"
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#include "expression.h"
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#include "value.h"
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#include "language.h"
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#include "demangle.h"
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#include "c-lang.h" /* For c_val_print */
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static void
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chill_print_value_fields PARAMS ((struct type *, char *, GDB_FILE *, int, int,
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enum val_prettyprint, struct type **));
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/* Print data of type TYPE located at VALADDR (within GDB), which came from
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the inferior at address ADDRESS, onto stdio stream STREAM according to
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FORMAT (a letter or 0 for natural format). The data at VALADDR is in
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target byte order.
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If the data are a string pointer, returns the number of string characters
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printed.
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If DEREF_REF is nonzero, then dereference references, otherwise just print
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them like pointers.
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The PRETTY parameter controls prettyprinting. */
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int
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chill_val_print (type, valaddr, address, stream, format, deref_ref, recurse,
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pretty)
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struct type *type;
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char *valaddr;
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CORE_ADDR address;
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GDB_FILE *stream;
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int format;
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int deref_ref;
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int recurse;
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enum val_prettyprint pretty;
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{
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LONGEST val;
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unsigned int i = 0; /* Number of characters printed. */
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struct type *elttype;
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CORE_ADDR addr;
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_ARRAY:
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if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0)
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{
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if (prettyprint_arrays)
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{
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print_spaces_filtered (2 + 2 * recurse, stream);
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}
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fprintf_filtered (stream, "[");
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val_print_array_elements (type, valaddr, address, stream, format,
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deref_ref, recurse, pretty, 0);
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fprintf_filtered (stream, "]");
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}
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else
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{
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error ("unimplemented in chill_val_print; unspecified array length");
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}
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break;
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case TYPE_CODE_INT:
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format = format ? format : output_format;
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if (format)
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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}
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else
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{
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val_print_type_code_int (type, valaddr, stream);
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}
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break;
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case TYPE_CODE_CHAR:
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format = format ? format : output_format;
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if (format)
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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}
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else
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{
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LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr),
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stream);
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}
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break;
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case TYPE_CODE_FLT:
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if (format)
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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}
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else
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{
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print_floating (valaddr, type, stream);
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}
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break;
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case TYPE_CODE_BOOL:
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format = format ? format : output_format;
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if (format)
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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}
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else
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{
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val = unpack_long (builtin_type_chill_bool, valaddr);
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fprintf_filtered (stream, val ? "TRUE" : "FALSE");
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}
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break;
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case TYPE_CODE_UNDEF:
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/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
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dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
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and no complete type for struct foo in that file. */
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fprintf_filtered (stream, "<incomplete type>");
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break;
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case TYPE_CODE_PTR:
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if (format && format != 's')
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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break;
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}
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addr = unpack_pointer (type, valaddr);
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elttype = TYPE_TARGET_TYPE (type);
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if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
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{
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/* Try to print what function it points to. */
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print_address_demangle (addr, stream, demangle);
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/* Return value is irrelevant except for string pointers. */
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return (0);
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}
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if (addressprint && format != 's')
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{
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fprintf_filtered (stream, "H'%lx", (unsigned long) addr);
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}
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/* For a pointer to char or unsigned char, also print the string
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pointed to, unless pointer is null. */
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if (TYPE_LENGTH (elttype) == 1
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&& TYPE_CODE (elttype) == TYPE_CODE_CHAR
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&& (format == 0 || format == 's')
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&& addr != 0
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&& /* If print_max is UINT_MAX, the alloca below will fail.
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In that case don't try to print the string. */
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print_max < UINT_MAX)
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{
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i = val_print_string (addr, 0, stream);
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}
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/* Return number of characters printed, plus one for the
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terminating null if we have "reached the end". */
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return (i + (print_max && i != print_max));
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break;
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case TYPE_CODE_STRING:
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if (format && format != 's')
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{
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print_scalar_formatted (valaddr, type, format, 0, stream);
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break;
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}
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if (addressprint && format != 's')
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{
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/* This used to say `addr', which is unset at this point.
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Is `address' what is meant? */
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fprintf_filtered (stream, "H'%lx ", (unsigned long) address);
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}
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i = TYPE_LENGTH (type);
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LA_PRINT_STRING (stream, valaddr, i, 0);
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/* Return number of characters printed, plus one for the terminating
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null if we have "reached the end". */
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return (i + (print_max && i != print_max));
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break;
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case TYPE_CODE_STRUCT:
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chill_print_value_fields (type, valaddr, stream, format, recurse, pretty,
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0);
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break;
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case TYPE_CODE_REF:
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if (addressprint)
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{
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fprintf_filtered (stream, "LOC(H'%lx)",
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unpack_long (builtin_type_int, valaddr));
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if (deref_ref)
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fputs_filtered (": ", stream);
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}
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/* De-reference the reference. */
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if (deref_ref)
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{
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if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_UNDEF)
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{
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value deref_val =
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value_at
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(TYPE_TARGET_TYPE (type),
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unpack_pointer (lookup_pointer_type (builtin_type_void),
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valaddr));
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val_print (VALUE_TYPE (deref_val),
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VALUE_CONTENTS (deref_val),
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VALUE_ADDRESS (deref_val), stream, format,
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deref_ref, recurse + 1, pretty);
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}
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else
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fputs_filtered ("???", stream);
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}
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break;
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case TYPE_CODE_ENUM:
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c_val_print (type, valaddr, address, stream, format,
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deref_ref, recurse, pretty);
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break;
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case TYPE_CODE_MEMBER:
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case TYPE_CODE_UNION:
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case TYPE_CODE_FUNC:
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case TYPE_CODE_VOID:
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case TYPE_CODE_ERROR:
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case TYPE_CODE_RANGE:
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default:
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/* Let's derfer printing to the C printer, rather than
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print an error message. FIXME! */
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c_val_print (type, valaddr, address, stream, format,
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deref_ref, recurse, pretty);
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}
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gdb_flush (stream);
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return (0);
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}
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/* Mutually recursive subroutines of cplus_print_value and c_val_print to
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print out a structure's fields: cp_print_value_fields and cplus_print_value.
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TYPE, VALADDR, STREAM, RECURSE, and PRETTY have the
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same meanings as in cplus_print_value and c_val_print.
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DONT_PRINT is an array of baseclass types that we
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should not print, or zero if called from top level. */
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static void
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chill_print_value_fields (type, valaddr, stream, format, recurse, pretty,
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dont_print)
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struct type *type;
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char *valaddr;
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GDB_FILE *stream;
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int format;
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int recurse;
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enum val_prettyprint pretty;
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struct type **dont_print;
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{
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int i, len;
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int fields_seen = 0;
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check_stub_type (type);
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fprintf_filtered (stream, "[");
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len = TYPE_NFIELDS (type);
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if (len == 0)
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{
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fprintf_filtered (stream, "<No data fields>");
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}
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else
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{
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for (i = 0; i < len; i++)
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{
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if (fields_seen)
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{
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fprintf_filtered (stream, ", ");
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}
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fields_seen = 1;
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if (pretty)
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{
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fprintf_filtered (stream, "\n");
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print_spaces_filtered (2 + 2 * recurse, stream);
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}
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else
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{
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wrap_here (n_spaces (2 + 2 * recurse));
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}
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fputs_filtered (".", stream);
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fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
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language_chill, DMGL_NO_OPTS);
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fputs_filtered (": ", stream);
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if (TYPE_FIELD_PACKED (type, i))
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{
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value v;
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/* Bitfields require special handling, especially due to byte
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order problems. */
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v = value_from_longest (TYPE_FIELD_TYPE (type, i),
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unpack_field_as_long (type, valaddr, i));
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chill_val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0,
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stream, format, 0, recurse + 1, pretty);
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}
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else
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{
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chill_val_print (TYPE_FIELD_TYPE (type, i),
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valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
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0, stream, format, 0, recurse + 1, pretty);
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}
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}
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if (pretty)
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{
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fprintf_filtered (stream, "\n");
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print_spaces_filtered (2 * recurse, stream);
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}
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}
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fprintf_filtered (stream, "]");
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}
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