/* Pascal language support routines for GDB, the GNU debugger.
- Copyright (C) 2000-2020 Free Software Foundation, Inc.
+ Copyright (C) 2000-2021 Free Software Foundation, Inc.
This file is part of GDB.
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_CODE_STRUCT)
&& 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)
+ if (length_size)
*length_size = TYPE_LENGTH (type->field (0).type ());
- if (string_pos)
+ if (string_pos)
*string_pos = TYPE_FIELD_BITPOS (type, 1) / TARGET_CHAR_BIT;
- if (char_type)
+ 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->num_fields () == 3
&& 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 (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 (2).type ());
}
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))))
{
}
}
+/* See language.h. */
+
void
-pascal_printchar (int c, struct type *type, struct ui_file *stream)
+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);
}
\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
-};
-
-/* Constant data representing the Pascal language. */
-
-extern const struct language_data pascal_language_data =
-{
- array_row_major,
- macro_expansion_no,
- &exp_descriptor_standard,
- pascal_op_print_tab, /* expression operators for printing */
- &default_varobj_ops,
-};
-
-/* Class representing the Pascal language. */
+/* See language.h. */
-class pascal_language : public language_defn
+void pascal_language::language_arch_info
+ (struct gdbarch *gdbarch, struct language_arch_info *lai) const
{
-public:
- pascal_language ()
- : language_defn (language_pascal, pascal_language_data)
- { /* Nothing. */ }
-
- /* See language.h. */
-
- const char *name () const override
- { return "pascal"; }
-
- /* See language.h. */
-
- const char *natural_name () const override
- { return "Pascal"; }
-
- /* See language.h. */
-
- const std::vector<const char *> &filename_extensions () const override
- {
- static const std::vector<const char *> extensions
- = { ".pas", ".p", ".pp" };
- return extensions;
- }
-
- /* 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. */
+ const struct builtin_type *builtin = builtin_type (gdbarch);
- void emitchar (int ch, struct type *chtype,
- struct ui_file *stream, int quoter) const override
+ /* Helper function to allow shorter lines below. */
+ auto add = [&] (struct type * t)
{
- int in_quotes = 0;
-
- pascal_one_char (ch, stream, &in_quotes);
- if (in_quotes)
- fputs_filtered ("'", stream);
- }
+ 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");
+}
- /* See language.h. */
+/* See language.h. */
- void printchar (int ch, struct type *chtype,
- struct ui_file *stream) const override
- {
- pascal_printchar (ch, chtype, stream);
- }
+void
+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 = 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;
+ }
- /* See language.h. */
+ 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;
- 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);
- }
+ QUIT;
- /* See language.h. */
+ if (need_comma)
+ {
+ fputs_filtered (", ", stream);
+ need_comma = 0;
+ }
- bool is_string_type_p (struct type *type) const override
- {
- return is_pascal_string_type (type, nullptr, nullptr, nullptr,
- nullptr, nullptr) > 0;
- }
+ current_char = extract_unsigned_integer (string + i * width, width,
+ byte_order);
- /* See language.h. */
+ rep1 = i + 1;
+ reps = 1;
+ while (rep1 < length
+ && extract_unsigned_integer (string + rep1 * width, width,
+ byte_order) == current_char)
+ {
+ ++rep1;
+ ++reps;
+ }
- const char *name_of_this () const override
- { return "this"; }
+ if (reps > options->repeat_count_threshold)
+ {
+ if (in_quotes)
+ {
+ fputs_filtered ("', ", stream);
+ in_quotes = 0;
+ }
+ 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;
+ }
+ print_one_char (current_char, stream, &in_quotes);
+ ++things_printed;
+ }
+ }
- /* See language.h. */
+ /* Terminate the quotes if necessary. */
+ if (in_quotes)
+ fputs_filtered ("'", stream);
- bool range_checking_on_by_default () const override
- { return true; }
-};
+ if (force_ellipses || i < length)
+ fputs_filtered ("...", stream);
+}
/* Single instance of the Pascal language class. */
projects / deliverable / binutils-gdb.git / blobdiff