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2000-06-14 Pierre Muller <muller@ics.u-strasbg.fr> 

Add support for Pascal language. Part 1: new files.
	* p-exp.y, p-lang.c, p-lang.h, p-typeprint.c, p-valprint.c: New files.
This commit is contained in:
Pierre Muller 2000-06-14 12:27:59 +00:00
parent c06ae4f232
commit 373a824730
6 changed files with 3983 additions and 0 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2000-06-14 Pierre Muller <muller@ics.u-strasbg.fr>
Add support for Pascal language. Part 1: new files.
* p-exp.y, p-lang.c, p-lang.h, p-typeprint.c, p-valprint.c: New files.
2000-06-13 Kevin Buettner <kevinb@redhat.com>
* ser-ocd.c, symtab.c: Eliminate use of PARAMS from these files.

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/* Pascal language support routines for GDB, the GNU debugger.
Copyright 2000 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This file is derived from p-lang.c */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "p-lang.h"
#include "valprint.h"
extern void _initialize_pascal_language (void);
static void pascal_one_char (int, struct ui_file *, int *);
/* Print the character C on STREAM as part of the contents of a literal
string.
In_quotes is reset to 0 if a char is written with #4 notation */
static void
pascal_one_char (c, stream, in_quotes)
register int c;
struct ui_file *stream;
int *in_quotes;
{
c &= 0xFF; /* Avoid sign bit follies */
if ((c == '\'') || (PRINT_LITERAL_FORM (c)))
{
if (!(*in_quotes))
fputs_filtered ("'", stream);
*in_quotes = 1;
if (c == '\'')
{
fputs_filtered ("''", stream);
}
else
fprintf_filtered (stream, "%c", c);
}
else
{
if (*in_quotes)
fputs_filtered ("'", stream);
*in_quotes = 0;
fprintf_filtered (stream, "#%d", (unsigned int) c);
}
}
static void pascal_emit_char (int c, struct ui_file *stream, int quoter);
/* Print the character C on STREAM as part of the contents of a literal
string whose delimiter is QUOTER. Note that that format for printing
characters and strings is language specific. */
static void
pascal_emit_char (c, stream, quoter)
register int c;
struct ui_file *stream;
int quoter;
{
int in_quotes = 0;
pascal_one_char (c, stream, &in_quotes);
if (in_quotes)
fputs_filtered ("'", stream);
}
void
pascal_printchar (c, stream)
int c;
struct ui_file *stream;
{
int in_quotes = 0;
pascal_one_char (c, stream, &in_quotes);
if (in_quotes)
fputs_filtered ("'", stream);
}
/* Print the character string STRING, printing at most LENGTH characters.
Printing stops early if the number hits print_max; repeat counts
are printed as appropriate. Print ellipses at the end if we
had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. */
void
pascal_printstr (stream, string, length, width, force_ellipses)
struct ui_file *stream;
char *string;
unsigned int length;
int width;
int force_ellipses;
{
register unsigned int i;
unsigned int things_printed = 0;
int in_quotes = 0;
int need_comma = 0;
extern int inspect_it;
/* If the string was not truncated due to `set print elements', and
the last byte of it is a null, we don't print that, in traditional C
style. */
if ((!force_ellipses) && length > 0 && string[length - 1] == '\0')
length--;
if (length == 0)
{
fputs_filtered ("''", stream);
return;
}
for (i = 0; i < length && things_printed < print_max; ++i)
{
/* Position of the character we are examining
to see whether it is repeated. */
unsigned int rep1;
/* Number of repetitions we have detected so far. */
unsigned int reps;
QUIT;
if (need_comma)
{
fputs_filtered (", ", stream);
need_comma = 0;
}
rep1 = i + 1;
reps = 1;
while (rep1 < length && string[rep1] == string[i])
{
++rep1;
++reps;
}
if (reps > repeat_count_threshold)
{
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\', ", stream);
else
fputs_filtered ("', ", stream);
in_quotes = 0;
}
pascal_printchar (string[i], stream);
fprintf_filtered (stream, " <repeats %u times>", reps);
i = rep1 - 1;
things_printed += repeat_count_threshold;
need_comma = 1;
}
else
{
int c = string[i];
if ((!in_quotes) && (PRINT_LITERAL_FORM (c)))
{
if (inspect_it)
fputs_filtered ("\\'", stream);
else
fputs_filtered ("'", stream);
in_quotes = 1;
}
pascal_one_char (c, stream, &in_quotes);
++things_printed;
}
}
/* Terminate the quotes if necessary. */
if (in_quotes)
{
if (inspect_it)
fputs_filtered ("\\'", stream);
else
fputs_filtered ("'", stream);
}
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
}
/* Create a fundamental Pascal type using default reasonable for the current
target machine.
Some object/debugging file formats (DWARF version 1, COFF, etc) do not
define fundamental types such as "int" or "double". Others (stabs or
DWARF version 2, etc) do define fundamental types. For the formats which
don't provide fundamental types, gdb can create such types using this
function.
FIXME: Some compilers distinguish explicitly signed integral types
(signed short, signed int, signed long) from "regular" integral types
(short, int, long) in the debugging information. There is some dis-
agreement as to how useful this feature is. In particular, gcc does
not support this. Also, only some debugging formats allow the
distinction to be passed on to a debugger. For now, we always just
use "short", "int", or "long" as the type name, for both the implicit
and explicitly signed types. This also makes life easier for the
gdb test suite since we don't have to account for the differences
in output depending upon what the compiler and debugging format
support. We will probably have to re-examine the issue when gdb
starts taking it's fundamental type information directly from the
debugging information supplied by the compiler. fnf@cygnus.com */
/* Note there might be some discussion about the choosen correspondance
because it mainly reflects Free Pascal Compiler setup for now PM */
struct type *
pascal_create_fundamental_type (objfile, typeid)
struct objfile *objfile;
int typeid;
{
register struct type *type = NULL;
switch (typeid)
{
default:
/* FIXME: For now, if we are asked to produce a type not in this
language, create the equivalent of a C integer type with the
name "<?type?>". When all the dust settles from the type
reconstruction work, this should probably become an error. */
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "<?type?>", objfile);
warning ("internal error: no Pascal fundamental type %d", typeid);
break;
case FT_VOID:
type = init_type (TYPE_CODE_VOID,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "void", objfile);
break;
case FT_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "char", objfile);
break;
case FT_SIGNED_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
0, "shortint", objfile);
break;
case FT_UNSIGNED_CHAR:
type = init_type (TYPE_CODE_INT,
TARGET_CHAR_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "byte", objfile);
break;
case FT_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0, "integer", objfile);
break;
case FT_SIGNED_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
0, "integer", objfile); /* FIXME-fnf */
break;
case FT_UNSIGNED_SHORT:
type = init_type (TYPE_CODE_INT,
TARGET_SHORT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "word", objfile);
break;
case FT_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "longint", objfile);
break;
case FT_SIGNED_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
0, "longint", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_INTEGER:
type = init_type (TYPE_CODE_INT,
TARGET_INT_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "cardinal", objfile);
break;
case FT_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
0, "long", objfile);
break;
case FT_SIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
0, "long", objfile); /* FIXME -fnf */
break;
case FT_UNSIGNED_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
break;
case FT_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
0, "long long", objfile);
break;
case FT_SIGNED_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
0, "signed long long", objfile);
break;
case FT_UNSIGNED_LONG_LONG:
type = init_type (TYPE_CODE_INT,
TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
break;
case FT_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
0, "float", objfile);
break;
case FT_DBL_PREC_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
0, "double", objfile);
break;
case FT_EXT_PREC_FLOAT:
type = init_type (TYPE_CODE_FLT,
TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
0, "extended", objfile);
break;
}
return (type);
}
/* Table mapping opcodes into strings for printing operators
and precedences of the operators. */
const struct op_print pascal_op_print_tab[] =
{
{",", BINOP_COMMA, PREC_COMMA, 0},
{":=", BINOP_ASSIGN, PREC_ASSIGN, 1},
{"or", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
{"xor", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
{"and", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
{"=", BINOP_EQUAL, PREC_EQUAL, 0},
{"<>", BINOP_NOTEQUAL, PREC_EQUAL, 0},
{"<=", BINOP_LEQ, PREC_ORDER, 0},
{">=", BINOP_GEQ, PREC_ORDER, 0},
{">", BINOP_GTR, PREC_ORDER, 0},
{"<", BINOP_LESS, PREC_ORDER, 0},
{"shr", BINOP_RSH, PREC_SHIFT, 0},
{"shl", BINOP_LSH, PREC_SHIFT, 0},
{"+", BINOP_ADD, PREC_ADD, 0},
{"-", BINOP_SUB, PREC_ADD, 0},
{"*", BINOP_MUL, PREC_MUL, 0},
{"/", BINOP_DIV, PREC_MUL, 0},
{"div", BINOP_INTDIV, PREC_MUL, 0},
{"mod", BINOP_REM, PREC_MUL, 0},
{"@", BINOP_REPEAT, PREC_REPEAT, 0},
{"-", UNOP_NEG, PREC_PREFIX, 0},
{"not", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
{"^", UNOP_IND, PREC_SUFFIX, 1},
{"@", UNOP_ADDR, PREC_PREFIX, 0},
{"sizeof", UNOP_SIZEOF, PREC_PREFIX, 0},
{NULL, 0, 0, 0}
};
struct type **const /* CONST_PTR v 4.17 */ (pascal_builtin_types[]) =
{
&builtin_type_int,
&builtin_type_long,
&builtin_type_short,
&builtin_type_char,
&builtin_type_float,
&builtin_type_double,
&builtin_type_void,
&builtin_type_long_long,
&builtin_type_signed_char,
&builtin_type_unsigned_char,
&builtin_type_unsigned_short,
&builtin_type_unsigned_int,
&builtin_type_unsigned_long,
&builtin_type_unsigned_long_long,
&builtin_type_long_double,
&builtin_type_complex,
&builtin_type_double_complex,
0
};
const struct language_defn pascal_language_defn =
{
"pascal", /* Language name */
language_pascal,
pascal_builtin_types,
range_check_on,
type_check_on,
pascal_parse,
pascal_error,
evaluate_subexp_standard,
pascal_printchar, /* Print a character constant */
pascal_printstr, /* Function to print string constant */
pascal_emit_char, /* Print a single char */
pascal_create_fundamental_type, /* Create fundamental type in this language */
pascal_print_type, /* Print a type using appropriate syntax */
pascal_val_print, /* Print a value using appropriate syntax */
pascal_value_print, /* Print a top-level value */
{"", "%", "b", ""}, /* Binary format info */
{"0%lo", "0", "o", ""}, /* Octal format info */
{"%ld", "", "d", ""}, /* Decimal format info */
{"$%lx", "$", "x", ""}, /* Hex format info */
pascal_op_print_tab, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
&builtin_type_char, /* Type of string elements */
LANG_MAGIC
};
void
_initialize_pascal_language ()
{
add_language (&pascal_language_defn);
}

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/* Pascal language support definitions for GDB, the GNU debugger.
Copyright 2000 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This file is derived from c-lang.h */
#ifdef __STDC__ /* Forward decls for prototypes */
struct value;
#endif
extern int pascal_parse (void); /* Defined in p-exp.y */
extern void pascal_error (char *); /* Defined in p-exp.y */
/* Defined in p-typeprint.c */
extern void pascal_print_type (struct type *, char *, struct ui_file *, int, int);
extern int pascal_val_print (struct type *, char *, int, CORE_ADDR, struct ui_file *, int, int,
int, enum val_prettyprint);
extern int pascal_value_print (struct value *, struct ui_file *, int, enum val_prettyprint);
extern void pascal_type_print_method_args (char *, char *,
struct ui_file *);
/* These are in p-lang.c: */
extern void pascal_printchar (int, struct ui_file *);
extern void pascal_printstr (struct ui_file *, char *, unsigned int, int, int);
extern struct type *pascal_create_fundamental_type (struct objfile *, int);
extern struct type **const (pascal_builtin_types[]);
/* These are in p-typeprint.c: */
extern void
pascal_type_print_base (struct type *, struct ui_file *, int, int);
extern void
pascal_type_print_varspec_prefix (struct type *, struct ui_file *, int, int);
/* These are in cp-valprint.c */
extern int vtblprint; /* Controls printing of vtbl's */
extern int static_field_print;
extern void pascal_object_print_class_member (char *, struct type *, struct ui_file *, char *);
extern void pascal_object_print_class_method (char *, struct type *, struct ui_file *);
extern void pascal_object_print_value_fields (struct type *, char *, CORE_ADDR,
struct ui_file *, int, int, enum val_prettyprint,
struct type **, int);
extern int pascal_object_is_vtbl_ptr_type (struct type *);
extern int pascal_object_is_vtbl_member (struct type *);

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/* Support for printing Pascal types for GDB, the GNU debugger.
Copyright 2000
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* This file is derived from p-typeprint.c */
#include "defs.h"
#include "obstack.h"
#include "bfd.h" /* Binary File Description */
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "value.h"
#include "gdbcore.h"
#include "target.h"
#include "command.h"
#include "gdbcmd.h"
#include "language.h"
#include "demangle.h"
#include "p-lang.h"
#include "typeprint.h"
#include "gdb_string.h"
#include <errno.h>
#include <ctype.h>
static void pascal_type_print_args (struct type *, struct ui_file *);
static void pascal_type_print_varspec_suffix (struct type *, struct ui_file *, int, int, int);
static void pascal_type_print_derivation_info (struct ui_file *, struct type *);
void pascal_type_print_varspec_prefix (struct type *, struct ui_file *, int, int);
/* LEVEL is the depth to indent lines by. */
void
pascal_print_type (type, varstring, stream, show, level)
struct type *type;
char *varstring;
struct ui_file *stream;
int show;
int level;
{
register enum type_code code;
int demangled_args;
code = TYPE_CODE (type);
if (show > 0)
CHECK_TYPEDEF (type);
if ((code == TYPE_CODE_FUNC ||
code == TYPE_CODE_METHOD))
{
pascal_type_print_varspec_prefix (type, stream, show, 0);
}
/* first the name */
fputs_filtered (varstring, stream);
if ((varstring != NULL && *varstring != '\0') &&
!(code == TYPE_CODE_FUNC ||
code == TYPE_CODE_METHOD))
{
fputs_filtered (" : ", stream);
}
if (!(code == TYPE_CODE_FUNC ||
code == TYPE_CODE_METHOD))
{
pascal_type_print_varspec_prefix (type, stream, show, 0);
}
pascal_type_print_base (type, stream, show, level);
/* For demangled function names, we have the arglist as part of the name,
so don't print an additional pair of ()'s */
demangled_args = varstring ? strchr (varstring, '(') != NULL : 0;
pascal_type_print_varspec_suffix (type, stream, show, 0, demangled_args);
}
/* If TYPE is a derived type, then print out derivation information.
Print only the actual base classes of this type, not the base classes
of the base classes. I.E. for the derivation hierarchy:
class A { int a; };
class B : public A {int b; };
class C : public B {int c; };
Print the type of class C as:
class C : public B {
int c;
}
Not as the following (like gdb used to), which is not legal C++ syntax for
derived types and may be confused with the multiple inheritance form:
class C : public B : public A {
int c;
}
In general, gdb should try to print the types as closely as possible to
the form that they appear in the source code. */
static void
pascal_type_print_derivation_info (stream, type)
struct ui_file *stream;
struct type *type;
{
char *name;
int i;
for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
{
fputs_filtered (i == 0 ? ": " : ", ", stream);
fprintf_filtered (stream, "%s%s ",
BASETYPE_VIA_PUBLIC (type, i) ? "public" : "private",
BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
name = type_name_no_tag (TYPE_BASECLASS (type, i));
fprintf_filtered (stream, "%s", name ? name : "(null)");
}
if (i > 0)
{
fputs_filtered (" ", stream);
}
}
/* Print the Pascal method arguments ARGS to the file STREAM. */
void
pascal_type_print_method_args (physname, methodname, stream)
char *physname;
char *methodname;
struct ui_file *stream;
{
int is_constructor = STREQN (physname, "__ct__", 6);
int is_destructor = STREQN (physname, "__dt__", 6);
if (is_constructor || is_destructor)
{
physname += 6;
}
fputs_filtered (methodname, stream);
if (physname && (*physname != 0))
{
int i = 0;
int len = 0;
char storec;
char *argname;
fputs_filtered (" (", stream);
/* we must demangle this */
while isdigit
(physname[0])
{
while isdigit
(physname[len])
{
len++;
}
i = strtol (physname, &argname, 0);
physname += len;
storec = physname[i];
physname[i] = 0;
fputs_filtered (physname, stream);
physname[i] = storec;
physname += i;
if (physname[0] != 0)
{
fputs_filtered (", ", stream);
}
}
fputs_filtered (")", stream);
}
}
/* Print any asterisks or open-parentheses needed before the
variable name (to describe its type).
On outermost call, pass 0 for PASSED_A_PTR.
On outermost call, SHOW > 0 means should ignore
any typename for TYPE and show its details.
SHOW is always zero on recursive calls. */
void
pascal_type_print_varspec_prefix (type, stream, show, passed_a_ptr)
struct type *type;
struct ui_file *stream;
int show;
int passed_a_ptr;
{
char *name;
if (type == 0)
return;
if (TYPE_NAME (type) && show <= 0)
return;
QUIT;
switch (TYPE_CODE (type))
{
case TYPE_CODE_PTR:
fprintf_filtered (stream, "^");
pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1);
break; /* pointer should be handled normally in pascal */
case TYPE_CODE_MEMBER:
if (passed_a_ptr)
fprintf_filtered (stream, "(");
pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
fprintf_filtered (stream, " ");
name = type_name_no_tag (TYPE_DOMAIN_TYPE (type));
if (name)
fputs_filtered (name, stream);
else
pascal_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
fprintf_filtered (stream, "::");
break;
case TYPE_CODE_METHOD:
if (passed_a_ptr)
fprintf_filtered (stream, "(");
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
{
fprintf_filtered (stream, "function ");
}
else
{
fprintf_filtered (stream, "procedure ");
}
if (passed_a_ptr)
{
fprintf_filtered (stream, " ");
pascal_type_print_base (TYPE_DOMAIN_TYPE (type), stream, 0, passed_a_ptr);
fprintf_filtered (stream, "::");
}
break;
case TYPE_CODE_REF:
pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1);
fprintf_filtered (stream, "&");
break;
case TYPE_CODE_FUNC:
if (passed_a_ptr)
fprintf_filtered (stream, "(");
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
{
fprintf_filtered (stream, "function ");
}
else
{
fprintf_filtered (stream, "procedure ");
}
break;
case TYPE_CODE_ARRAY:
if (passed_a_ptr)
fprintf_filtered (stream, "(");
fprintf_filtered (stream, "array ");
if (TYPE_LENGTH (type) >= 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0
&& TYPE_ARRAY_UPPER_BOUND_TYPE (type) != BOUND_CANNOT_BE_DETERMINED)
fprintf_filtered (stream, "[%d..%d] ",
TYPE_ARRAY_LOWER_BOUND_VALUE (type),
TYPE_ARRAY_UPPER_BOUND_VALUE (type)
);
fprintf_filtered (stream, "of ");
break;
case TYPE_CODE_UNDEF:
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
case TYPE_CODE_ENUM:
case TYPE_CODE_INT:
case TYPE_CODE_FLT:
case TYPE_CODE_VOID:
case TYPE_CODE_ERROR:
case TYPE_CODE_CHAR:
case TYPE_CODE_BOOL:
case TYPE_CODE_SET:
case TYPE_CODE_RANGE:
case TYPE_CODE_STRING:
case TYPE_CODE_BITSTRING:
case TYPE_CODE_COMPLEX:
case TYPE_CODE_TYPEDEF:
case TYPE_CODE_TEMPLATE:
/* These types need no prefix. They are listed here so that
gcc -Wall will reveal any types that haven't been handled. */
break;
default:
error ("type not handled in pascal_type_print_varspec_prefix()");
break;
}
}
static void
pascal_type_print_args (type, stream)
struct type *type;
struct ui_file *stream;
{
int i;
struct type **args;
/* fprintf_filtered (stream, "(");
no () for procedures !! */
args = TYPE_ARG_TYPES (type);
if (args != NULL)
{
if ((args[1] != NULL && args[1]->code != TYPE_CODE_VOID) ||
(args[2] != NULL))
{
fprintf_filtered (stream, "(");
}
if (args[1] == NULL)
{
fprintf_filtered (stream, "...");
}
else
{
for (i = 1;
args[i] != NULL && args[i]->code != TYPE_CODE_VOID;
i++)
{
pascal_print_type (args[i], "", stream, -1, 0);
if (args[i + 1] == NULL)
{
fprintf_filtered (stream, "...");
}
else if (args[i + 1]->code != TYPE_CODE_VOID)
{
fprintf_filtered (stream, ",");
wrap_here (" ");
}
}
}
if ((args[1] != NULL && args[1]->code != TYPE_CODE_VOID) ||
(args[2] != NULL))
{
fprintf_filtered (stream, ")");
}
}
}
static void
pascal_print_func_args (struct type *type, struct ui_file *stream)
{
int i, len = TYPE_NFIELDS (type);
if (len)
{
fprintf_filtered (stream, "(");
}
for (i = 0; i < len; i++)
{
if (i > 0)
{
fputs_filtered (", ", stream);
wrap_here (" ");
}
/* can we find if it is a var parameter ??
if ( TYPE_FIELD(type, i) == )
{
fprintf_filtered (stream, "var ");
} */
pascal_print_type (TYPE_FIELD_TYPE (type, i), "" /* TYPE_FIELD_NAME seems invalid ! */
,stream, -1, 0);
}
if (len)
{
fprintf_filtered (stream, ")");
}
}
/* Print any array sizes, function arguments or close parentheses
needed after the variable name (to describe its type).
Args work like pascal_type_print_varspec_prefix. */
static void
pascal_type_print_varspec_suffix (type, stream, show, passed_a_ptr, demangled_args)
struct type *type;
struct ui_file *stream;
int show;
int passed_a_ptr;
int demangled_args;
{
if (type == 0)
return;
if (TYPE_NAME (type) && show <= 0)
return;
QUIT;
switch (TYPE_CODE (type))
{
case TYPE_CODE_ARRAY:
if (passed_a_ptr)
fprintf_filtered (stream, ")");
break;
case TYPE_CODE_MEMBER:
if (passed_a_ptr)
fprintf_filtered (stream, ")");
pascal_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0);
break;
case TYPE_CODE_METHOD:
if (passed_a_ptr)
fprintf_filtered (stream, ")");
pascal_type_print_method_args ("",
"",
stream);
/* pascal_type_print_args (type, stream); */
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
{
fprintf_filtered (stream, " : ");
pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
pascal_type_print_base (TYPE_TARGET_TYPE (type), stream, show, 0);
pascal_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
passed_a_ptr, 0);
}
break;
case TYPE_CODE_PTR:
case TYPE_CODE_REF:
pascal_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0);
break;
case TYPE_CODE_FUNC:
if (passed_a_ptr)
fprintf_filtered (stream, ")");
if (!demangled_args)
pascal_print_func_args (type, stream);
if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
{
fprintf_filtered (stream, " : ");
pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
pascal_type_print_base (TYPE_TARGET_TYPE (type), stream, show, 0);
pascal_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0,
passed_a_ptr, 0);
}
break;
case TYPE_CODE_UNDEF:
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
case TYPE_CODE_ENUM:
case TYPE_CODE_INT:
case TYPE_CODE_FLT:
case TYPE_CODE_VOID:
case TYPE_CODE_ERROR:
case TYPE_CODE_CHAR:
case TYPE_CODE_BOOL:
case TYPE_CODE_SET:
case TYPE_CODE_RANGE:
case TYPE_CODE_STRING:
case TYPE_CODE_BITSTRING:
case TYPE_CODE_COMPLEX:
case TYPE_CODE_TYPEDEF:
case TYPE_CODE_TEMPLATE:
/* These types do not need a suffix. They are listed so that
gcc -Wall will report types that may not have been considered. */
break;
default:
error ("type not handled in pascal_type_print_varspec_suffix()");
break;
}
}
/* Print the name of the type (or the ultimate pointer target,
function value or array element), or the description of a
structure or union.
SHOW positive means print details about the type (e.g. enum values),
and print structure elements passing SHOW - 1 for show.
SHOW negative means just print the type name or struct tag if there is one.
If there is no name, print something sensible but concise like
"struct {...}".
SHOW zero means just print the type name or struct tag if there is one.
If there is no name, print something sensible but not as concise like
"struct {int x; int y;}".
LEVEL is the number of spaces to indent by.
We increase it for some recursive calls. */
void
pascal_type_print_base (type, stream, show, level)
struct type *type;
struct ui_file *stream;
int show;
int level;
{
register int i;
register int len;
register int lastval;
enum
{
s_none, s_public, s_private, s_protected
}
section_type;
QUIT;
wrap_here (" ");
if (type == NULL)
{
fputs_filtered ("<type unknown>", stream);
return;
}
/* void pointer */
if ((TYPE_CODE (type) == TYPE_CODE_PTR) && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID))
{
fprintf_filtered (stream,
TYPE_NAME (type) ? TYPE_NAME (type) : "pointer");
return;
}
/* When SHOW is zero or less, and there is a valid type name, then always
just print the type name directly from the type. */
if (show <= 0
&& TYPE_NAME (type) != NULL)
{
fputs_filtered (TYPE_NAME (type), stream);
return;
}
CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_TYPEDEF:
case TYPE_CODE_PTR:
case TYPE_CODE_MEMBER:
case TYPE_CODE_REF:
/* case TYPE_CODE_FUNC:
case TYPE_CODE_METHOD: */
pascal_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
break;
case TYPE_CODE_ARRAY:
/* pascal_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0);
pascal_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
pascal_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); */
pascal_print_type (TYPE_TARGET_TYPE (type), NULL, stream, 0, 0);
break;
case TYPE_CODE_FUNC:
case TYPE_CODE_METHOD:
/*
pascal_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
only after args !! */
break;
case TYPE_CODE_STRUCT:
if (TYPE_TAG_NAME (type) != NULL)
{
fputs_filtered (TYPE_TAG_NAME (type), stream);
fputs_filtered (" = ", stream);
}
if (HAVE_CPLUS_STRUCT (type))
{
fprintf_filtered (stream, "class ");
}
else
{
fprintf_filtered (stream, "record ");
}
goto struct_union;
case TYPE_CODE_UNION:
if (TYPE_TAG_NAME (type) != NULL)
{
fputs_filtered (TYPE_TAG_NAME (type), stream);
fputs_filtered (" = ", stream);
}
fprintf_filtered (stream, "case <?> of ");
struct_union:
wrap_here (" ");
if (show < 0)
{
/* If we just printed a tag name, no need to print anything else. */
if (TYPE_TAG_NAME (type) == NULL)
fprintf_filtered (stream, "{...}");
}
else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
{
pascal_type_print_derivation_info (stream, type);
fprintf_filtered (stream, "\n");
if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
{
if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
else
fprintfi_filtered (level + 4, stream, "<no data fields>\n");
}
/* Start off with no specific section type, so we can print
one for the first field we find, and use that section type
thereafter until we find another type. */
section_type = s_none;
/* If there is a base class for this type,
do not print the field that it occupies. */
len = TYPE_NFIELDS (type);
for (i = TYPE_N_BASECLASSES (type); i < len; i++)
{
QUIT;
/* Don't print out virtual function table. */
if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5)
&& is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5]))
continue;
/* If this is a pascal object or class we can print the
various section labels. */
if (HAVE_CPLUS_STRUCT (type))
{
if (TYPE_FIELD_PROTECTED (type, i))
{
if (section_type != s_protected)
{
section_type = s_protected;
fprintfi_filtered (level + 2, stream,
"protected\n");
}
}
else if (TYPE_FIELD_PRIVATE (type, i))
{
if (section_type != s_private)
{
section_type = s_private;
fprintfi_filtered (level + 2, stream, "private\n");
}
}
else
{
if (section_type != s_public)
{
section_type = s_public;
fprintfi_filtered (level + 2, stream, "public\n");
}
}
}
print_spaces_filtered (level + 4, stream);
if (TYPE_FIELD_STATIC (type, i))
{
fprintf_filtered (stream, "static ");
}
pascal_print_type (TYPE_FIELD_TYPE (type, i),
TYPE_FIELD_NAME (type, i),
stream, show - 1, level + 4);
if (!TYPE_FIELD_STATIC (type, i)
&& TYPE_FIELD_PACKED (type, i))
{
/* It is a bitfield. This code does not attempt
to look at the bitpos and reconstruct filler,
unnamed fields. This would lead to misleading
results if the compiler does not put out fields
for such things (I don't know what it does). */
fprintf_filtered (stream, " : %d",
TYPE_FIELD_BITSIZE (type, i));
}
fprintf_filtered (stream, ";\n");
}
/* If there are both fields and methods, put a space between. */
len = TYPE_NFN_FIELDS (type);
if (len && section_type != s_none)
fprintf_filtered (stream, "\n");
/* Pbject pascal: print out the methods */
for (i = 0; i < len; i++)
{
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
char *name = type_name_no_tag (type);
/* this is GNU C++ specific
how can we know constructor/destructor?
It might work for GNU pascal */
for (j = 0; j < len2; j++)
{
char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
int is_constructor = STREQN (physname, "__ct__", 6);
int is_destructor = STREQN (physname, "__dt__", 6);
QUIT;
if (TYPE_FN_FIELD_PROTECTED (f, j))
{
if (section_type != s_protected)
{
section_type = s_protected;
fprintfi_filtered (level + 2, stream,
"protected\n");
}
}
else if (TYPE_FN_FIELD_PRIVATE (f, j))
{
if (section_type != s_private)
{
section_type = s_private;
fprintfi_filtered (level + 2, stream, "private\n");
}
}
else
{
if (section_type != s_public)
{
section_type = s_public;
fprintfi_filtered (level + 2, stream, "public\n");
}
}
print_spaces_filtered (level + 4, stream);
if (TYPE_FN_FIELD_STATIC_P (f, j))
fprintf_filtered (stream, "static ");
if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
{
/* Keep GDB from crashing here. */
fprintf_filtered (stream, "<undefined type> %s;\n",
TYPE_FN_FIELD_PHYSNAME (f, j));
break;
}
if (is_constructor)
{
fprintf_filtered (stream, "constructor ");
}
else if (is_destructor)
{
fprintf_filtered (stream, "destructor ");
}
else if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) != 0 &&
TYPE_CODE (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j))) != TYPE_CODE_VOID)
{
fprintf_filtered (stream, "function ");
}
else
{
fprintf_filtered (stream, "procedure ");
}
/* this does not work, no idea why !! */
pascal_type_print_method_args (physname,
method_name,
stream);
if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) != 0 &&
TYPE_CODE (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j))) != TYPE_CODE_VOID)
{
fputs_filtered (" : ", stream);
type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
"", stream, -1);
}
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
fprintf_filtered (stream, "; virtual");
fprintf_filtered (stream, ";\n");
}
}
fprintfi_filtered (level, stream, "end");
}
break;
case TYPE_CODE_ENUM:
if (TYPE_TAG_NAME (type) != NULL)
{
fputs_filtered (TYPE_TAG_NAME (type), stream);
if (show > 0)
fputs_filtered (" ", stream);
}
/* enum is just defined by
type enume_name = (enum_member1,enum_member2,...) */
fprintf_filtered (stream, " = ");
wrap_here (" ");
if (show < 0)
{
/* If we just printed a tag name, no need to print anything else. */
if (TYPE_TAG_NAME (type) == NULL)
fprintf_filtered (stream, "(...)");
}
else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
{
fprintf_filtered (stream, "(");
len = TYPE_NFIELDS (type);
lastval = 0;
for (i = 0; i < len; i++)
{
QUIT;
if (i)
fprintf_filtered (stream, ", ");
wrap_here (" ");
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
if (lastval != TYPE_FIELD_BITPOS (type, i))
{
fprintf_filtered (stream, " := %d", TYPE_FIELD_BITPOS (type, i));
lastval = TYPE_FIELD_BITPOS (type, i);
}
lastval++;
}
fprintf_filtered (stream, ")");
}
break;
case TYPE_CODE_VOID:
fprintf_filtered (stream, "void");
break;
case TYPE_CODE_UNDEF:
fprintf_filtered (stream, "record <unknown>");
break;
case TYPE_CODE_ERROR:
fprintf_filtered (stream, "<unknown type>");
break;
/* this probably does not work for enums */
case TYPE_CODE_RANGE:
{
struct type *target = TYPE_TARGET_TYPE (type);
if (target == NULL)
target = builtin_type_long;
print_type_scalar (target, TYPE_LOW_BOUND (type), stream);
fputs_filtered ("..", stream);
print_type_scalar (target, TYPE_HIGH_BOUND (type), stream);
}
break;
case TYPE_CODE_SET:
fputs_filtered ("set of ", stream);
pascal_print_type (TYPE_INDEX_TYPE (type), "", stream,
show - 1, level);
break;
default:
/* Handle types not explicitly handled by the other cases,
such as fundamental types. For these, just print whatever
the type name is, as recorded in the type itself. If there
is no type name, then complain. */
if (TYPE_NAME (type) != NULL)
{
fputs_filtered (TYPE_NAME (type), stream);
}
else
{
/* At least for dump_symtab, it is important that this not be
an error (). */
fprintf_filtered (stream, "<invalid unnamed pascal type code %d>",
TYPE_CODE (type));
}
break;
}
}

1145
gdb/p-valprint.c Normal file
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