/* Pascal language support routines for GDB, the GNU debugger.
- Copyright (C) 2000, 2002-2005, 2007-2012 Free Software Foundation,
- Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
This file is part of GDB.
/* This file is derived from c-lang.c */
#include "defs.h"
-#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
+#include "varobj.h"
#include "p-lang.h"
#include "valprint.h"
#include "value.h"
#include <ctype.h>
-
-extern void _initialize_pascal_language (void);
-
+#include "c-lang.h"
+#include "gdbarch.h"
+#include "cli/cli-style.h"
/* All GPC versions until now (2007-09-27) also define a symbol called
'_p_initialize'. Check for the presence of this symbol first. */
const char *
pascal_main_name (void)
{
- struct minimal_symbol *msym;
+ struct bound_minimal_symbol msym;
msym = lookup_minimal_symbol (GPC_P_INITIALIZE, NULL, NULL);
/* If '_p_initialize' was not found, the main program is likely not
written in Pascal. */
- if (msym == NULL)
+ if (msym.minsym == NULL)
return NULL;
msym = lookup_minimal_symbol (GPC_MAIN_PROGRAM_NAME_1, NULL, NULL);
- if (msym != NULL)
+ if (msym.minsym != NULL)
{
return GPC_MAIN_PROGRAM_NAME_1;
}
msym = lookup_minimal_symbol (GPC_MAIN_PROGRAM_NAME_2, NULL, NULL);
- if (msym != NULL)
+ if (msym.minsym != NULL)
{
return GPC_MAIN_PROGRAM_NAME_2;
}
struct type **char_type,
const char **arrayname)
{
- if (type != NULL && TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ if (type != NULL && type->code () == TYPE_CODE_STRUCT)
{
/* Old Borland type pascal strings from Free Pascal Compiler. */
/* Two fields: length and st. */
- if (TYPE_NFIELDS (type) == 2
+ if (type->num_fields () == 2
&& TYPE_FIELD_NAME (type, 0)
&& strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0
&& TYPE_FIELD_NAME (type, 1)
if (length_pos)
*length_pos = TYPE_FIELD_BITPOS (type, 0) / TARGET_CHAR_BIT;
if (length_size)
- *length_size = TYPE_LENGTH (TYPE_FIELD_TYPE (type, 0));
+ *length_size = TYPE_LENGTH (type->field (0).type ());
if (string_pos)
*string_pos = TYPE_FIELD_BITPOS (type, 1) / TARGET_CHAR_BIT;
if (char_type)
- *char_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 1));
+ *char_type = TYPE_TARGET_TYPE (type->field (1).type ());
if (arrayname)
*arrayname = TYPE_FIELD_NAME (type, 1);
return 2;
};
/* GNU pascal strings. */
/* Three fields: Capacity, length and schema$ or _p_schema. */
- if (TYPE_NFIELDS (type) == 3
+ if (type->num_fields () == 3
&& TYPE_FIELD_NAME (type, 0)
&& strcmp (TYPE_FIELD_NAME (type, 0), "Capacity") == 0
&& TYPE_FIELD_NAME (type, 1)
if (length_pos)
*length_pos = TYPE_FIELD_BITPOS (type, 1) / TARGET_CHAR_BIT;
if (length_size)
- *length_size = TYPE_LENGTH (TYPE_FIELD_TYPE (type, 1));
+ *length_size = TYPE_LENGTH (type->field (1).type ());
if (string_pos)
*string_pos = TYPE_FIELD_BITPOS (type, 2) / TARGET_CHAR_BIT;
/* FIXME: how can I detect wide chars in GPC ?? */
if (char_type)
{
- *char_type = TYPE_TARGET_TYPE (TYPE_FIELD_TYPE (type, 2));
+ *char_type = TYPE_TARGET_TYPE (type->field (2).type ());
- if (TYPE_CODE (*char_type) == TYPE_CODE_ARRAY)
+ if ((*char_type)->code () == TYPE_CODE_ARRAY)
*char_type = TYPE_TARGET_TYPE (*char_type);
}
if (arrayname)
}
}
-static void pascal_emit_char (int c, struct type *type,
- 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 (int c, struct type *type, 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 type *type, struct ui_file *stream)
{
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, struct type *type,
- const gdb_byte *string, unsigned int length,
- const char *encoding, int force_ellipses,
- const struct value_print_options *options)
-{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
- unsigned int i;
- unsigned int things_printed = 0;
- int in_quotes = 0;
- int need_comma = 0;
- int width;
-
- /* Preserve TYPE's original type, just set its LENGTH. */
- check_typedef (type);
- width = TYPE_LENGTH (type);
-
- /* 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
- && extract_unsigned_integer (string + (length - 1) * width, width,
- byte_order) == 0)
- length--;
-
- if (length == 0)
- {
- fputs_filtered ("''", stream);
- return;
- }
-
- for (i = 0; i < length && things_printed < options->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;
- unsigned long int current_char;
-
- QUIT;
-
- if (need_comma)
- {
- fputs_filtered (", ", stream);
- need_comma = 0;
- }
-
- current_char = extract_unsigned_integer (string + i * width, width,
- byte_order);
-
- rep1 = i + 1;
- reps = 1;
- while (rep1 < length
- && extract_unsigned_integer (string + rep1 * width, width,
- byte_order) == current_char)
- {
- ++rep1;
- ++reps;
- }
-
- if (reps > options->repeat_count_threshold)
- {
- if (in_quotes)
- {
- if (options->inspect_it)
- fputs_filtered ("\\', ", stream);
- else
- fputs_filtered ("', ", stream);
- in_quotes = 0;
- }
- pascal_printchar (current_char, type, stream);
- fprintf_filtered (stream, " <repeats %u times>", reps);
- i = rep1 - 1;
- things_printed += options->repeat_count_threshold;
- need_comma = 1;
- }
- else
- {
- if ((!in_quotes) && (PRINT_LITERAL_FORM (current_char)))
- {
- if (options->inspect_it)
- fputs_filtered ("\\'", stream);
- else
- fputs_filtered ("'", stream);
- in_quotes = 1;
- }
- pascal_one_char (current_char, stream, &in_quotes);
- ++things_printed;
- }
- }
-
- /* Terminate the quotes if necessary. */
- if (in_quotes)
- {
- if (options->inspect_it)
- fputs_filtered ("\\'", stream);
- else
- fputs_filtered ("'", stream);
- }
-
- if (force_ellipses || i < length)
- fputs_filtered ("...", stream);
-}
\f
/* Table mapping opcodes into strings for printing operators
{"^", UNOP_IND, PREC_SUFFIX, 1},
{"@", UNOP_ADDR, PREC_PREFIX, 0},
{"sizeof", UNOP_SIZEOF, PREC_PREFIX, 0},
- {NULL, 0, 0, 0}
+ {NULL, OP_NULL, PREC_PREFIX, 0}
};
\f
enum pascal_primitive_types {
nr_pascal_primitive_types
};
-static void
-pascal_language_arch_info (struct gdbarch *gdbarch,
- struct language_arch_info *lai)
+static const char *p_extensions[] =
{
- const struct builtin_type *builtin = builtin_type (gdbarch);
+ ".pas", ".p", ".pp", NULL
+};
- lai->string_char_type = builtin->builtin_char;
- lai->primitive_type_vector
- = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_pascal_primitive_types + 1,
- struct type *);
- lai->primitive_type_vector [pascal_primitive_type_int]
- = builtin->builtin_int;
- lai->primitive_type_vector [pascal_primitive_type_long]
- = builtin->builtin_long;
- lai->primitive_type_vector [pascal_primitive_type_short]
- = builtin->builtin_short;
- lai->primitive_type_vector [pascal_primitive_type_char]
- = builtin->builtin_char;
- lai->primitive_type_vector [pascal_primitive_type_float]
- = builtin->builtin_float;
- lai->primitive_type_vector [pascal_primitive_type_double]
- = builtin->builtin_double;
- lai->primitive_type_vector [pascal_primitive_type_void]
- = builtin->builtin_void;
- lai->primitive_type_vector [pascal_primitive_type_long_long]
- = builtin->builtin_long_long;
- lai->primitive_type_vector [pascal_primitive_type_signed_char]
- = builtin->builtin_signed_char;
- lai->primitive_type_vector [pascal_primitive_type_unsigned_char]
- = builtin->builtin_unsigned_char;
- lai->primitive_type_vector [pascal_primitive_type_unsigned_short]
- = builtin->builtin_unsigned_short;
- lai->primitive_type_vector [pascal_primitive_type_unsigned_int]
- = builtin->builtin_unsigned_int;
- lai->primitive_type_vector [pascal_primitive_type_unsigned_long]
- = builtin->builtin_unsigned_long;
- lai->primitive_type_vector [pascal_primitive_type_unsigned_long_long]
- = builtin->builtin_unsigned_long_long;
- lai->primitive_type_vector [pascal_primitive_type_long_double]
- = builtin->builtin_long_double;
- lai->primitive_type_vector [pascal_primitive_type_complex]
- = builtin->builtin_complex;
- lai->primitive_type_vector [pascal_primitive_type_double_complex]
- = builtin->builtin_double_complex;
-
- lai->bool_type_symbol = "boolean";
- lai->bool_type_default = builtin->builtin_bool;
-}
+/* Constant data representing the Pascal language. */
-const struct language_defn pascal_language_defn =
+extern const struct language_data pascal_language_data =
{
"pascal", /* Language name */
+ "Pascal",
language_pascal,
range_check_on,
- type_check_on,
case_sensitive_on,
array_row_major,
macro_expansion_no,
+ p_extensions,
&exp_descriptor_standard,
- pascal_parse,
- pascal_error,
- null_post_parser,
- pascal_printchar, /* Print a character constant */
- pascal_printstr, /* Function to print string constant */
- pascal_emit_char, /* Print a single char */
- pascal_print_type, /* Print a type using appropriate syntax */
- pascal_print_typedef, /* Print a typedef using appropriate syntax */
- pascal_val_print, /* Print a value using appropriate syntax */
- pascal_value_print, /* Print a top-level value */
- NULL, /* Language specific skip_trampoline */
"this", /* name_of_this */
- basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
- basic_lookup_transparent_type,/* lookup_transparent_type */
- NULL, /* Language specific symbol demangler */
- NULL, /* Language specific class_name_from_physname */
+ false, /* la_store_sym_names_in_linkage_form_p */
pascal_op_print_tab, /* expression operators for printing */
1, /* c-style arrays */
0, /* String lower bound */
- default_word_break_characters,
- default_make_symbol_completion_list,
- pascal_language_arch_info,
- default_print_array_index,
- default_pass_by_reference,
- default_get_string,
- NULL, /* la_get_symbol_name_cmp */
- iterate_over_symbols,
- LANG_MAGIC
+ &default_varobj_ops,
+ "{...}" /* la_struct_too_deep_ellipsis */
};
-void
-_initialize_pascal_language (void)
+/* Class representing the Pascal language. */
+
+class pascal_language : public language_defn
{
- add_language (&pascal_language_defn);
-}
+public:
+ pascal_language ()
+ : language_defn (language_pascal, pascal_language_data)
+ { /* Nothing. */ }
+
+ /* See language.h. */
+ void language_arch_info (struct gdbarch *gdbarch,
+ struct language_arch_info *lai) const override
+ {
+ const struct builtin_type *builtin = builtin_type (gdbarch);
+
+ lai->string_char_type = builtin->builtin_char;
+ lai->primitive_type_vector
+ = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_pascal_primitive_types + 1,
+ struct type *);
+ lai->primitive_type_vector [pascal_primitive_type_int]
+ = builtin->builtin_int;
+ lai->primitive_type_vector [pascal_primitive_type_long]
+ = builtin->builtin_long;
+ lai->primitive_type_vector [pascal_primitive_type_short]
+ = builtin->builtin_short;
+ lai->primitive_type_vector [pascal_primitive_type_char]
+ = builtin->builtin_char;
+ lai->primitive_type_vector [pascal_primitive_type_float]
+ = builtin->builtin_float;
+ lai->primitive_type_vector [pascal_primitive_type_double]
+ = builtin->builtin_double;
+ lai->primitive_type_vector [pascal_primitive_type_void]
+ = builtin->builtin_void;
+ lai->primitive_type_vector [pascal_primitive_type_long_long]
+ = builtin->builtin_long_long;
+ lai->primitive_type_vector [pascal_primitive_type_signed_char]
+ = builtin->builtin_signed_char;
+ lai->primitive_type_vector [pascal_primitive_type_unsigned_char]
+ = builtin->builtin_unsigned_char;
+ lai->primitive_type_vector [pascal_primitive_type_unsigned_short]
+ = builtin->builtin_unsigned_short;
+ lai->primitive_type_vector [pascal_primitive_type_unsigned_int]
+ = builtin->builtin_unsigned_int;
+ lai->primitive_type_vector [pascal_primitive_type_unsigned_long]
+ = builtin->builtin_unsigned_long;
+ lai->primitive_type_vector [pascal_primitive_type_unsigned_long_long]
+ = builtin->builtin_unsigned_long_long;
+ lai->primitive_type_vector [pascal_primitive_type_long_double]
+ = builtin->builtin_long_double;
+ lai->primitive_type_vector [pascal_primitive_type_complex]
+ = builtin->builtin_complex;
+ lai->primitive_type_vector [pascal_primitive_type_double_complex]
+ = builtin->builtin_double_complex;
+
+ lai->bool_type_symbol = "boolean";
+ lai->bool_type_default = builtin->builtin_bool;
+ }
+
+ /* See language.h. */
+
+ void print_type (struct type *type, const char *varstring,
+ struct ui_file *stream, int show, int level,
+ const struct type_print_options *flags) const override
+ {
+ pascal_print_type (type, varstring, stream, show, level, flags);
+ }
+
+ /* See language.h. */
+
+ void value_print (struct value *val, struct ui_file *stream,
+ const struct value_print_options *options) const override
+ {
+ return pascal_value_print (val, stream, options);
+ }
+
+ /* See language.h. */
+
+ void value_print_inner
+ (struct value *val, struct ui_file *stream, int recurse,
+ const struct value_print_options *options) const override
+ {
+ return pascal_value_print_inner (val, stream, recurse, options);
+ }
+
+ /* See language.h. */
+
+ int parser (struct parser_state *ps) const override
+ {
+ return pascal_parse (ps);
+ }
+
+ /* See language.h. */
+
+ void emitchar (int ch, struct type *chtype,
+ struct ui_file *stream, int quoter) const override
+ {
+ int in_quotes = 0;
+
+ pascal_one_char (ch, stream, &in_quotes);
+ if (in_quotes)
+ fputs_filtered ("'", stream);
+ }
+
+ /* See language.h. */
+
+ void printchar (int ch, struct type *chtype,
+ struct ui_file *stream) const override
+ {
+ pascal_printchar (ch, chtype, stream);
+ }
+
+ /* See language.h. */
+
+ void printstr (struct ui_file *stream, struct type *elttype,
+ const gdb_byte *string, unsigned int length,
+ const char *encoding, int force_ellipses,
+ const struct value_print_options *options) const override
+ {
+ enum bfd_endian byte_order = type_byte_order (elttype);
+ unsigned int i;
+ unsigned int things_printed = 0;
+ int in_quotes = 0;
+ int need_comma = 0;
+ int width;
+
+ /* Preserve ELTTYPE's original type, just set its LENGTH. */
+ check_typedef (elttype);
+ width = TYPE_LENGTH (elttype);
+
+ /* 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
+ && extract_unsigned_integer (string + (length - 1) * width, width,
+ byte_order) == 0)
+ length--;
+
+ if (length == 0)
+ {
+ fputs_filtered ("''", stream);
+ return;
+ }
+
+ for (i = 0; i < length && things_printed < options->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;
+ unsigned long int current_char;
+
+ QUIT;
+
+ if (need_comma)
+ {
+ fputs_filtered (", ", stream);
+ need_comma = 0;
+ }
+
+ current_char = extract_unsigned_integer (string + i * width, width,
+ byte_order);
+
+ rep1 = i + 1;
+ reps = 1;
+ while (rep1 < length
+ && extract_unsigned_integer (string + rep1 * width, width,
+ byte_order) == current_char)
+ {
+ ++rep1;
+ ++reps;
+ }
+
+ if (reps > options->repeat_count_threshold)
+ {
+ if (in_quotes)
+ {
+ fputs_filtered ("', ", stream);
+ in_quotes = 0;
+ }
+ pascal_printchar (current_char, elttype, stream);
+ fprintf_filtered (stream, " %p[<repeats %u times>%p]",
+ metadata_style.style ().ptr (),
+ reps, nullptr);
+ i = rep1 - 1;
+ things_printed += options->repeat_count_threshold;
+ need_comma = 1;
+ }
+ else
+ {
+ if ((!in_quotes) && (PRINT_LITERAL_FORM (current_char)))
+ {
+ fputs_filtered ("'", stream);
+ in_quotes = 1;
+ }
+ pascal_one_char (current_char, stream, &in_quotes);
+ ++things_printed;
+ }
+ }
+
+ /* Terminate the quotes if necessary. */
+ if (in_quotes)
+ fputs_filtered ("'", stream);
+
+ if (force_ellipses || i < length)
+ fputs_filtered ("...", stream);
+ }
+
+ /* See language.h. */
+
+ void print_typedef (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream) const override
+ {
+ pascal_print_typedef (type, new_symbol, stream);
+ }
+
+ /* See language.h. */
+
+ bool is_string_type_p (struct type *type) const override
+ {
+ return is_pascal_string_type (type, nullptr, nullptr, nullptr,
+ nullptr, nullptr) > 0;
+ }
+};
+
+/* Single instance of the Pascal language class. */
+
+static pascal_language pascal_language_defn;
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