old-cross-binutils/gdb/p-lang.c
Jimmy Guo 63872f9d95 2000-08-10 Jimmy Guo <guo@cup.hp.com>
* c-lang.c: Set case sensitivity on for c_language_defn,
	cplus_language_defn, and asm_language_defn.
	* ch-lang.c: Set case sensitivity on for chill_language_defn.
	* f-lang.c: Set case sensivitity off for f_language_defn.
	* jv-lang.c: Set case sensitivity on for java_language_defn.
	* language.h: Add enum case_mode, case_sensitivity.
	* language.c: Define case_mode, case_sensitivity.  Set case
	sensitivity on for unknown_language_defn, auto_language_defn,
	and local_language_defn.
	(show_case_command,set_case_command,set_case_str): New static func.
	(set_type_range_case): New static func, replaces set_type_range ().
	(set_language_command,set_type_command,set_range_command,set_language):
	Call set_type_range_case ().
	(language_info): Print case sensitivity setting.
	(_initialize_language): Add set/show commands for 'case-sensitive'.
	Set default case mode 'auto'.  Set default language 'auto'.
	* m2-lang.c: Set case sensitivity on for m2_language_defn.
	* p-lang.c: Set case sensitivity on for pascal_language_defn.
	* scm-lang.c: Set case sensitivity off for scm_language_defn.
	* symtab.c (lookup_symbol): Downcase symbol name if case sensivitity
	is off.
2000-08-11 01:02:35 +00:00

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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 (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 (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 (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 (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 (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,
case_sensitive_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 (void)
{
add_language (&pascal_language_defn);
}