/* Pascal language support routines for GDB, the GNU debugger.
- Copyright (C) 2000-2019 Free Software Foundation, Inc.
+ Copyright (C) 2000-2021 Free Software Foundation, Inc.
This file is part of GDB.
#include "value.h"
#include <ctype.h>
#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. */
return NULL;
}
-/* Determines if type TYPE is a pascal string type.
- Returns a positive value if the type is a known pascal string type.
- This function is used by p-valprint.c code to allow better string display.
- If it is a pascal string type, then it also sets info needed
- to get the length and the data of the string
- length_pos, length_size and string_pos are given in bytes.
- char_size gives the element size in bytes.
- FIXME: if the position or the size of these fields
- are not multiple of TARGET_CHAR_BIT then the results are wrong
- but this does not happen for Free Pascal nor for GPC. */
+/* See p-lang.h. */
+
int
-is_pascal_string_type (struct type *type,int *length_pos,
- int *length_size, int *string_pos,
- struct type **char_type,
+pascal_is_string_type (struct type *type,int *length_pos, int *length_size,
+ int *string_pos, 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)
&& strcmp (TYPE_FIELD_NAME (type, 1), "st") == 0)
- {
- if (length_pos)
+ {
+ 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));
- if (string_pos)
+ if (length_size)
+ *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));
- if (arrayname)
+ if (char_type)
+ *char_type = TYPE_TARGET_TYPE (type->field (1).type ());
+ if (arrayname)
*arrayname = TYPE_FIELD_NAME (type, 1);
- return 2;
- };
+ 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)
&& strcmp (TYPE_FIELD_NAME (type, 1), "length") == 0)
- {
+ {
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)
+ /* 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)
+ if (arrayname)
*arrayname = TYPE_FIELD_NAME (type, 2);
- return 3;
- };
+ return 3;
+ };
}
return 0;
}
-static void pascal_one_char (int, struct ui_file *, int *);
+/* See p-lang.h. */
-/* 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 (int c, struct ui_file *stream, int *in_quotes)
+void
+pascal_language::print_one_char (int c, struct ui_file *stream,
+ int *in_quotes) const
{
if (c == '\'' || ((unsigned int) c <= 0xff && (PRINT_LITERAL_FORM (c))))
{
}
}
-static void pascal_emit_char (int c, struct type *type,
- struct ui_file *stream, int quoter);
+/* See language.h. */
-/* 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)
+void
+pascal_language::printchar (int c, struct type *type,
+ struct ui_file *stream) const
{
int in_quotes = 0;
- pascal_one_char (c, stream, &in_quotes);
+ print_one_char (c, stream, &in_quotes);
if (in_quotes)
fputs_filtered ("'", stream);
}
-void
-pascal_printchar (int c, struct type *type, struct ui_file *stream)
+\f
+
+/* See language.h. */
+
+void pascal_language::language_arch_info
+ (struct gdbarch *gdbarch, struct language_arch_info *lai) const
{
- int in_quotes = 0;
+ const struct builtin_type *builtin = builtin_type (gdbarch);
- pascal_one_char (c, stream, &in_quotes);
- if (in_quotes)
- fputs_filtered ("'", stream);
+ /* Helper function to allow shorter lines below. */
+ auto add = [&] (struct type * t)
+ {
+ lai->add_primitive_type (t);
+ };
+
+ add (builtin->builtin_int);
+ add (builtin->builtin_long);
+ add (builtin->builtin_short);
+ add (builtin->builtin_char);
+ add (builtin->builtin_float);
+ add (builtin->builtin_double);
+ add (builtin->builtin_void);
+ add (builtin->builtin_long_long);
+ add (builtin->builtin_signed_char);
+ add (builtin->builtin_unsigned_char);
+ add (builtin->builtin_unsigned_short);
+ add (builtin->builtin_unsigned_int);
+ add (builtin->builtin_unsigned_long);
+ add (builtin->builtin_unsigned_long_long);
+ add (builtin->builtin_long_double);
+ add (builtin->builtin_complex);
+ add (builtin->builtin_double_complex);
+
+ lai->set_string_char_type (builtin->builtin_char);
+ lai->set_bool_type (builtin->builtin_bool, "boolean");
}
-/* 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. */
+/* See language.h. */
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)
+pascal_language::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
{
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
+ 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 TYPE's original type, just set its LENGTH. */
- check_typedef (type);
- width = TYPE_LENGTH (type);
+ /* 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)
+ && extract_unsigned_integer (string + (length - 1) * width, width,
+ byte_order) == 0)
length--;
if (length == 0)
for (i = 0; i < length && things_printed < options->print_max; ++i)
{
/* Position of the character we are examining
- to see whether it is repeated. */
+ to see whether it is repeated. */
unsigned int rep1;
/* Number of repetitions we have detected so far. */
unsigned int reps;
fputs_filtered ("', ", stream);
in_quotes = 0;
}
- pascal_printchar (current_char, type, stream);
- fprintf_filtered (stream, " <repeats %u times>", reps);
+ 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;
fputs_filtered ("'", stream);
in_quotes = 1;
}
- pascal_one_char (current_char, stream, &in_quotes);
+ print_one_char (current_char, stream, &in_quotes);
++things_printed;
}
}
if (force_ellipses || i < length)
fputs_filtered ("...", stream);
}
-\f
-
-/* 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, OP_NULL, PREC_PREFIX, 0}
-};
-\f
-enum pascal_primitive_types {
- pascal_primitive_type_int,
- pascal_primitive_type_long,
- pascal_primitive_type_short,
- pascal_primitive_type_char,
- pascal_primitive_type_float,
- pascal_primitive_type_double,
- pascal_primitive_type_void,
- pascal_primitive_type_long_long,
- pascal_primitive_type_signed_char,
- pascal_primitive_type_unsigned_char,
- pascal_primitive_type_unsigned_short,
- pascal_primitive_type_unsigned_int,
- pascal_primitive_type_unsigned_long,
- pascal_primitive_type_unsigned_long_long,
- pascal_primitive_type_long_double,
- pascal_primitive_type_complex,
- pascal_primitive_type_double_complex,
- nr_pascal_primitive_types
-};
-
-static void
-pascal_language_arch_info (struct gdbarch *gdbarch,
- struct language_arch_info *lai)
-{
- 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;
-}
-static const char *p_extensions[] =
-{
- ".pas", ".p", ".pp", NULL
-};
+/* Single instance of the Pascal language class. */
-extern const struct language_defn pascal_language_defn =
-{
- "pascal", /* Language name */
- "Pascal",
- language_pascal,
- range_check_on,
- case_sensitive_on,
- array_row_major,
- macro_expansion_no,
- p_extensions,
- &exp_descriptor_standard,
- pascal_parse,
- 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 */
- default_read_var_value, /* la_read_var_value */
- NULL, /* Language specific skip_trampoline */
- "this", /* name_of_this */
- false, /* la_store_sym_names_in_linkage_form_p */
- basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
- basic_lookup_transparent_type,/* lookup_transparent_type */
- NULL, /* Language specific symbol demangler */
- NULL,
- NULL, /* Language specific class_name_from_physname */
- pascal_op_print_tab, /* expression operators for printing */
- 1, /* c-style arrays */
- 0, /* String lower bound */
- default_word_break_characters,
- default_collect_symbol_completion_matches,
- pascal_language_arch_info,
- default_print_array_index,
- default_pass_by_reference,
- default_get_string,
- c_watch_location_expression,
- NULL, /* la_compare_symbol_for_completion */
- iterate_over_symbols,
- default_search_name_hash,
- &default_varobj_ops,
- NULL,
- NULL,
- LANG_MAGIC
-};
+static pascal_language pascal_language_defn;
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