1 /* C language support routines for GDB, the GNU debugger.
3 Copyright (C) 1992-1996, 1998-2000, 2002-2005, 2007-2012 Free
4 Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "expression.h"
25 #include "parser-defs.h"
29 #include "macroscope.h"
30 #include "gdb_assert.h"
32 #include "gdb_string.h"
35 #include "cp-support.h"
36 #include "gdb_obstack.h"
38 #include "exceptions.h"
40 extern void _initialize_c_language (void);
42 /* Given a C string type, STR_TYPE, return the corresponding target
43 character set name. */
46 charset_for_string_type (enum c_string_type str_type,
47 struct gdbarch *gdbarch)
49 switch (str_type & ~C_CHAR)
52 return target_charset (gdbarch);
54 return target_wide_charset (gdbarch);
56 /* FIXME: UTF-16 is not always correct. */
57 if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
62 /* FIXME: UTF-32 is not always correct. */
63 if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
68 internal_error (__FILE__, __LINE__, _("unhandled c_string_type"));
71 /* Classify ELTTYPE according to what kind of character it is. Return
72 the enum constant representing the character type. Also set
73 *ENCODING to the name of the character set to use when converting
74 characters of this type in target BYTE_ORDER to the host character
77 static enum c_string_type
78 classify_type (struct type *elttype, struct gdbarch *gdbarch,
79 const char **encoding)
81 enum c_string_type result;
83 /* We loop because ELTTYPE may be a typedef, and we want to
84 successively peel each typedef until we reach a type we
85 understand. We don't use CHECK_TYPEDEF because that will strip
86 all typedefs at once -- but in C, wchar_t is itself a typedef, so
87 that would do the wrong thing. */
90 const char *name = TYPE_NAME (elttype);
92 if (TYPE_CODE (elttype) == TYPE_CODE_CHAR || !name)
98 if (!strcmp (name, "wchar_t"))
100 result = C_WIDE_CHAR;
104 if (!strcmp (name, "char16_t"))
110 if (!strcmp (name, "char32_t"))
116 if (TYPE_CODE (elttype) != TYPE_CODE_TYPEDEF)
119 /* Call for side effects. */
120 check_typedef (elttype);
122 if (TYPE_TARGET_TYPE (elttype))
123 elttype = TYPE_TARGET_TYPE (elttype);
126 /* Perhaps check_typedef did not update the target type. In
127 this case, force the lookup again and hope it works out.
128 It never will for C, but it might for C++. */
129 CHECK_TYPEDEF (elttype);
138 *encoding = charset_for_string_type (result, gdbarch);
143 /* Print the character C on STREAM as part of the contents of a
144 literal string whose delimiter is QUOTER. Note that that format
145 for printing characters and strings is language specific. */
148 c_emit_char (int c, struct type *type,
149 struct ui_file *stream, int quoter)
151 const char *encoding;
153 classify_type (type, get_type_arch (type), &encoding);
154 generic_emit_char (c, type, stream, quoter, encoding);
158 c_printchar (int c, struct type *type, struct ui_file *stream)
160 enum c_string_type str_type;
162 str_type = classify_type (type, get_type_arch (type), NULL);
168 fputc_filtered ('L', stream);
171 fputc_filtered ('u', stream);
174 fputc_filtered ('U', stream);
178 fputc_filtered ('\'', stream);
179 LA_EMIT_CHAR (c, type, stream, '\'');
180 fputc_filtered ('\'', stream);
183 /* Print the character string STRING, printing at most LENGTH
184 characters. LENGTH is -1 if the string is nul terminated. Each
185 character is WIDTH bytes long. Printing stops early if the number
186 hits print_max; repeat counts are printed as appropriate. Print
187 ellipses at the end if we had to stop before printing LENGTH
188 characters, or if FORCE_ELLIPSES. */
191 c_printstr (struct ui_file *stream, struct type *type,
192 const gdb_byte *string, unsigned int length,
193 const char *user_encoding, int force_ellipses,
194 const struct value_print_options *options)
196 enum c_string_type str_type;
197 const char *type_encoding;
198 const char *encoding;
200 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
202 unsigned int things_printed = 0;
205 int width = TYPE_LENGTH (type);
206 struct obstack wchar_buf, output;
207 struct cleanup *cleanup;
208 struct wchar_iterator *iter;
212 str_type = (classify_type (type, get_type_arch (type), &type_encoding)
219 fputs_filtered ("L", stream);
222 fputs_filtered ("u", stream);
225 fputs_filtered ("U", stream);
229 encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding;
231 generic_printstr (stream, type, string, length, encoding, force_ellipses,
235 /* Obtain a C string from the inferior storing it in a newly allocated
236 buffer in BUFFER, which should be freed by the caller. If the in-
237 and out-parameter *LENGTH is specified at -1, the string is read
238 until a null character of the appropriate width is found, otherwise
239 the string is read to the length of characters specified. The size
240 of a character is determined by the length of the target type of
241 the pointer or array. If VALUE is an array with a known length,
242 the function will not read past the end of the array. On
243 completion, *LENGTH will be set to the size of the string read in
244 characters. (If a length of -1 is specified, the length returned
245 will not include the null character). CHARSET is always set to the
249 c_get_string (struct value *value, gdb_byte **buffer,
250 int *length, struct type **char_type,
251 const char **charset)
254 unsigned int fetchlimit;
255 struct type *type = check_typedef (value_type (value));
256 struct type *element_type = TYPE_TARGET_TYPE (type);
257 int req_length = *length;
258 enum bfd_endian byte_order
259 = gdbarch_byte_order (get_type_arch (type));
260 enum c_string_type kind;
262 if (element_type == NULL)
265 if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
267 /* If we know the size of the array, we can use it as a limit on
268 the number of characters to be fetched. */
269 if (TYPE_NFIELDS (type) == 1
270 && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE)
272 LONGEST low_bound, high_bound;
274 get_discrete_bounds (TYPE_FIELD_TYPE (type, 0),
275 &low_bound, &high_bound);
276 fetchlimit = high_bound - low_bound + 1;
279 fetchlimit = UINT_MAX;
281 else if (TYPE_CODE (type) == TYPE_CODE_PTR)
282 fetchlimit = UINT_MAX;
284 /* We work only with arrays and pointers. */
287 if (! c_textual_element_type (element_type, 0))
289 kind = classify_type (element_type,
290 get_type_arch (element_type),
292 width = TYPE_LENGTH (element_type);
294 /* If the string lives in GDB's memory instead of the inferior's,
295 then we just need to copy it to BUFFER. Also, since such strings
296 are arrays with known size, FETCHLIMIT will hold the size of the
298 if ((VALUE_LVAL (value) == not_lval
299 || VALUE_LVAL (value) == lval_internalvar)
300 && fetchlimit != UINT_MAX)
303 const gdb_byte *contents = value_contents (value);
305 /* If a length is specified, use that. */
309 /* Otherwise, look for a null character. */
310 for (i = 0; i < fetchlimit; i++)
311 if (extract_unsigned_integer (contents + i * width,
312 width, byte_order) == 0)
315 /* I is now either a user-defined length, the number of non-null
316 characters, or FETCHLIMIT. */
318 *buffer = xmalloc (*length);
319 memcpy (*buffer, contents, *length);
324 CORE_ADDR addr = value_as_address (value);
326 err = read_string (addr, *length, width, fetchlimit,
327 byte_order, buffer, length);
332 throw_error (MEMORY_ERROR, "Address %s out of bounds",
333 paddress (get_type_arch (type), addr));
335 error (_("Error reading string from inferior: %s"),
336 safe_strerror (err));
340 /* If the LENGTH is specified at -1, we want to return the string
341 length up to the terminating null character. If an actual length
342 was specified, we want to return the length of exactly what was
344 if (req_length == -1)
345 /* If the last character is null, subtract it from LENGTH. */
347 && extract_unsigned_integer (*buffer + *length - width,
348 width, byte_order) == 0)
351 /* The read_string function will return the number of bytes read.
352 If length returned from read_string was > 0, return the number of
353 characters read by dividing the number of bytes by width. */
355 *length = *length / width;
357 *char_type = element_type;
365 type_str = type_to_string (type);
368 make_cleanup (xfree, type_str);
369 error (_("Trying to read string with inappropriate type `%s'."),
373 error (_("Trying to read string with inappropriate type."));
378 /* Evaluating C and C++ expressions. */
380 /* Convert a UCN. The digits of the UCN start at P and extend no
381 farther than LIMIT. DEST_CHARSET is the name of the character set
382 into which the UCN should be converted. The results are written to
383 OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8.
384 Returns a pointer to just after the final digit of the UCN. */
387 convert_ucn (char *p, char *limit, const char *dest_charset,
388 struct obstack *output, int length)
390 unsigned long result = 0;
394 for (i = 0; i < length && p < limit && isxdigit (*p); ++i, ++p)
395 result = (result << 4) + host_hex_value (*p);
397 for (i = 3; i >= 0; --i)
399 data[i] = result & 0xff;
403 convert_between_encodings ("UTF-32BE", dest_charset, data,
404 4, 4, output, translit_none);
409 /* Emit a character, VALUE, which was specified numerically, to
410 OUTPUT. TYPE is the target character type. */
413 emit_numeric_character (struct type *type, unsigned long value,
414 struct obstack *output)
418 buffer = alloca (TYPE_LENGTH (type));
419 pack_long (buffer, type, value);
420 obstack_grow (output, buffer, TYPE_LENGTH (type));
423 /* Convert an octal escape sequence. TYPE is the target character
424 type. The digits of the escape sequence begin at P and extend no
425 farther than LIMIT. The result is written to OUTPUT. Returns a
426 pointer to just after the final digit of the escape sequence. */
429 convert_octal (struct type *type, char *p,
430 char *limit, struct obstack *output)
433 unsigned long value = 0;
436 i < 3 && p < limit && isdigit (*p) && *p != '8' && *p != '9';
439 value = 8 * value + host_hex_value (*p);
443 emit_numeric_character (type, value, output);
448 /* Convert a hex escape sequence. TYPE is the target character type.
449 The digits of the escape sequence begin at P and extend no farther
450 than LIMIT. The result is written to OUTPUT. Returns a pointer to
451 just after the final digit of the escape sequence. */
454 convert_hex (struct type *type, char *p,
455 char *limit, struct obstack *output)
457 unsigned long value = 0;
459 while (p < limit && isxdigit (*p))
461 value = 16 * value + host_hex_value (*p);
465 emit_numeric_character (type, value, output);
474 error (_("Malformed escape sequence")); \
477 /* Convert an escape sequence to a target format. TYPE is the target
478 character type to use, and DEST_CHARSET is the name of the target
479 character set. The backslash of the escape sequence is at *P, and
480 the escape sequence will not extend past LIMIT. The results are
481 written to OUTPUT. Returns a pointer to just past the final
482 character of the escape sequence. */
485 convert_escape (struct type *type, const char *dest_charset,
486 char *p, char *limit, struct obstack *output)
488 /* Skip the backslash. */
494 obstack_1grow (output, '\\');
501 error (_("\\x used with no following hex digits."));
502 p = convert_hex (type, p, limit, output);
513 p = convert_octal (type, p, limit, output);
519 int length = *p == 'u' ? 4 : 8;
523 error (_("\\u used with no following hex digits"));
524 p = convert_ucn (p, limit, dest_charset, output, length);
531 /* Given a single string from a (C-specific) OP_STRING list, convert
532 it to a target string, handling escape sequences specially. The
533 output is written to OUTPUT. DATA is the input string, which has
534 length LEN. DEST_CHARSET is the name of the target character set,
535 and TYPE is the type of target character to use. */
538 parse_one_string (struct obstack *output, char *data, int len,
539 const char *dest_charset, struct type *type)
549 /* Look for next escape, or the end of the input. */
550 while (p < limit && *p != '\\')
552 /* If we saw a run of characters, convert them all. */
554 convert_between_encodings (host_charset (), dest_charset,
556 output, translit_none);
557 /* If we saw an escape, convert it. */
559 p = convert_escape (type, dest_charset, p, limit, output);
564 /* Expression evaluator for the C language family. Most operations
565 are delegated to evaluate_subexp_standard; see that function for a
566 description of the arguments. */
569 evaluate_subexp_c (struct type *expect_type, struct expression *exp,
570 int *pos, enum noside noside)
572 enum exp_opcode op = exp->elts[*pos].opcode;
580 struct obstack output;
581 struct cleanup *cleanup;
582 struct value *result;
583 enum c_string_type dest_type;
584 const char *dest_charset;
585 int satisfy_expected = 0;
587 obstack_init (&output);
588 cleanup = make_cleanup_obstack_free (&output);
591 oplen = longest_to_int (exp->elts[*pos].longconst);
594 limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1);
596 = (enum c_string_type) longest_to_int (exp->elts[*pos].longconst);
597 switch (dest_type & ~C_CHAR)
600 type = language_string_char_type (exp->language_defn,
604 type = lookup_typename (exp->language_defn, exp->gdbarch,
608 type = lookup_typename (exp->language_defn, exp->gdbarch,
609 "char16_t", NULL, 0);
612 type = lookup_typename (exp->language_defn, exp->gdbarch,
613 "char32_t", NULL, 0);
616 internal_error (__FILE__, __LINE__, _("unhandled c_string_type"));
619 /* Ensure TYPE_LENGTH is valid for TYPE. */
620 check_typedef (type);
622 /* If the caller expects an array of some integral type,
623 satisfy them. If something odder is expected, rely on the
625 if (expect_type && TYPE_CODE (expect_type) == TYPE_CODE_ARRAY)
627 struct type *element_type
628 = check_typedef (TYPE_TARGET_TYPE (expect_type));
630 if (TYPE_CODE (element_type) == TYPE_CODE_INT
631 || TYPE_CODE (element_type) == TYPE_CODE_CHAR)
634 satisfy_expected = 1;
638 dest_charset = charset_for_string_type (dest_type, exp->gdbarch);
645 len = longest_to_int (exp->elts[*pos].longconst);
648 if (noside != EVAL_SKIP)
649 parse_one_string (&output, &exp->elts[*pos].string, len,
651 *pos += BYTES_TO_EXP_ELEM (len);
654 /* Skip the trailing length and opcode. */
657 if (noside == EVAL_SKIP)
659 /* Return a dummy value of the appropriate type. */
660 if (expect_type != NULL)
661 result = allocate_value (expect_type);
662 else if ((dest_type & C_CHAR) != 0)
663 result = allocate_value (type);
665 result = value_cstring ("", 0, type);
666 do_cleanups (cleanup);
670 if ((dest_type & C_CHAR) != 0)
674 if (obstack_object_size (&output) != TYPE_LENGTH (type))
675 error (_("Could not convert character "
676 "constant to target character set"));
677 value = unpack_long (type, obstack_base (&output));
678 result = value_from_longest (type, value);
684 /* Write the terminating character. */
685 for (i = 0; i < TYPE_LENGTH (type); ++i)
686 obstack_1grow (&output, 0);
688 if (satisfy_expected)
690 LONGEST low_bound, high_bound;
691 int element_size = TYPE_LENGTH (type);
693 if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type),
694 &low_bound, &high_bound) < 0)
697 high_bound = (TYPE_LENGTH (expect_type) / element_size) - 1;
699 if (obstack_object_size (&output) / element_size
700 > (high_bound - low_bound + 1))
701 error (_("Too many array elements"));
703 result = allocate_value (expect_type);
704 memcpy (value_contents_raw (result), obstack_base (&output),
705 obstack_object_size (&output));
708 result = value_cstring (obstack_base (&output),
709 obstack_object_size (&output),
712 do_cleanups (cleanup);
720 return evaluate_subexp_standard (expect_type, exp, pos, noside);
725 /* Table mapping opcodes into strings for printing operators
726 and precedences of the operators. */
728 const struct op_print c_op_print_tab[] =
730 {",", BINOP_COMMA, PREC_COMMA, 0},
731 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
732 {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
733 {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
734 {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
735 {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
736 {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
737 {"==", BINOP_EQUAL, PREC_EQUAL, 0},
738 {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
739 {"<=", BINOP_LEQ, PREC_ORDER, 0},
740 {">=", BINOP_GEQ, PREC_ORDER, 0},
741 {">", BINOP_GTR, PREC_ORDER, 0},
742 {"<", BINOP_LESS, PREC_ORDER, 0},
743 {">>", BINOP_RSH, PREC_SHIFT, 0},
744 {"<<", BINOP_LSH, PREC_SHIFT, 0},
745 {"+", BINOP_ADD, PREC_ADD, 0},
746 {"-", BINOP_SUB, PREC_ADD, 0},
747 {"*", BINOP_MUL, PREC_MUL, 0},
748 {"/", BINOP_DIV, PREC_MUL, 0},
749 {"%", BINOP_REM, PREC_MUL, 0},
750 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
751 {"-", UNOP_NEG, PREC_PREFIX, 0},
752 {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
753 {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
754 {"*", UNOP_IND, PREC_PREFIX, 0},
755 {"&", UNOP_ADDR, PREC_PREFIX, 0},
756 {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
757 {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
758 {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
762 enum c_primitive_types {
763 c_primitive_type_int,
764 c_primitive_type_long,
765 c_primitive_type_short,
766 c_primitive_type_char,
767 c_primitive_type_float,
768 c_primitive_type_double,
769 c_primitive_type_void,
770 c_primitive_type_long_long,
771 c_primitive_type_signed_char,
772 c_primitive_type_unsigned_char,
773 c_primitive_type_unsigned_short,
774 c_primitive_type_unsigned_int,
775 c_primitive_type_unsigned_long,
776 c_primitive_type_unsigned_long_long,
777 c_primitive_type_long_double,
778 c_primitive_type_complex,
779 c_primitive_type_double_complex,
780 c_primitive_type_decfloat,
781 c_primitive_type_decdouble,
782 c_primitive_type_declong,
787 c_language_arch_info (struct gdbarch *gdbarch,
788 struct language_arch_info *lai)
790 const struct builtin_type *builtin = builtin_type (gdbarch);
792 lai->string_char_type = builtin->builtin_char;
793 lai->primitive_type_vector
794 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_c_primitive_types + 1,
796 lai->primitive_type_vector [c_primitive_type_int] = builtin->builtin_int;
797 lai->primitive_type_vector [c_primitive_type_long] = builtin->builtin_long;
798 lai->primitive_type_vector [c_primitive_type_short] = builtin->builtin_short;
799 lai->primitive_type_vector [c_primitive_type_char] = builtin->builtin_char;
800 lai->primitive_type_vector [c_primitive_type_float] = builtin->builtin_float;
801 lai->primitive_type_vector [c_primitive_type_double] = builtin->builtin_double;
802 lai->primitive_type_vector [c_primitive_type_void] = builtin->builtin_void;
803 lai->primitive_type_vector [c_primitive_type_long_long] = builtin->builtin_long_long;
804 lai->primitive_type_vector [c_primitive_type_signed_char] = builtin->builtin_signed_char;
805 lai->primitive_type_vector [c_primitive_type_unsigned_char] = builtin->builtin_unsigned_char;
806 lai->primitive_type_vector [c_primitive_type_unsigned_short] = builtin->builtin_unsigned_short;
807 lai->primitive_type_vector [c_primitive_type_unsigned_int] = builtin->builtin_unsigned_int;
808 lai->primitive_type_vector [c_primitive_type_unsigned_long] = builtin->builtin_unsigned_long;
809 lai->primitive_type_vector [c_primitive_type_unsigned_long_long] = builtin->builtin_unsigned_long_long;
810 lai->primitive_type_vector [c_primitive_type_long_double] = builtin->builtin_long_double;
811 lai->primitive_type_vector [c_primitive_type_complex] = builtin->builtin_complex;
812 lai->primitive_type_vector [c_primitive_type_double_complex] = builtin->builtin_double_complex;
813 lai->primitive_type_vector [c_primitive_type_decfloat] = builtin->builtin_decfloat;
814 lai->primitive_type_vector [c_primitive_type_decdouble] = builtin->builtin_decdouble;
815 lai->primitive_type_vector [c_primitive_type_declong] = builtin->builtin_declong;
817 lai->bool_type_default = builtin->builtin_int;
820 const struct exp_descriptor exp_descriptor_c =
822 print_subexp_standard,
823 operator_length_standard,
824 operator_check_standard,
826 dump_subexp_body_standard,
830 const struct language_defn c_language_defn =
832 "c", /* Language name */
843 c_printchar, /* Print a character constant */
844 c_printstr, /* Function to print string constant */
845 c_emit_char, /* Print a single char */
846 c_print_type, /* Print a type using appropriate syntax */
847 c_print_typedef, /* Print a typedef using appropriate syntax */
848 c_val_print, /* Print a value using appropriate syntax */
849 c_value_print, /* Print a top-level value */
850 default_read_var_value, /* la_read_var_value */
851 NULL, /* Language specific skip_trampoline */
852 NULL, /* name_of_this */
853 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
854 basic_lookup_transparent_type,/* lookup_transparent_type */
855 NULL, /* Language specific symbol demangler */
856 NULL, /* Language specific
857 class_name_from_physname */
858 c_op_print_tab, /* expression operators for printing */
859 1, /* c-style arrays */
860 0, /* String lower bound */
861 default_word_break_characters,
862 default_make_symbol_completion_list,
863 c_language_arch_info,
864 default_print_array_index,
865 default_pass_by_reference,
867 NULL, /* la_get_symbol_name_cmp */
868 iterate_over_symbols,
872 enum cplus_primitive_types {
873 cplus_primitive_type_int,
874 cplus_primitive_type_long,
875 cplus_primitive_type_short,
876 cplus_primitive_type_char,
877 cplus_primitive_type_float,
878 cplus_primitive_type_double,
879 cplus_primitive_type_void,
880 cplus_primitive_type_long_long,
881 cplus_primitive_type_signed_char,
882 cplus_primitive_type_unsigned_char,
883 cplus_primitive_type_unsigned_short,
884 cplus_primitive_type_unsigned_int,
885 cplus_primitive_type_unsigned_long,
886 cplus_primitive_type_unsigned_long_long,
887 cplus_primitive_type_long_double,
888 cplus_primitive_type_complex,
889 cplus_primitive_type_double_complex,
890 cplus_primitive_type_bool,
891 cplus_primitive_type_decfloat,
892 cplus_primitive_type_decdouble,
893 cplus_primitive_type_declong,
894 nr_cplus_primitive_types
898 cplus_language_arch_info (struct gdbarch *gdbarch,
899 struct language_arch_info *lai)
901 const struct builtin_type *builtin = builtin_type (gdbarch);
903 lai->string_char_type = builtin->builtin_char;
904 lai->primitive_type_vector
905 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1,
907 lai->primitive_type_vector [cplus_primitive_type_int]
908 = builtin->builtin_int;
909 lai->primitive_type_vector [cplus_primitive_type_long]
910 = builtin->builtin_long;
911 lai->primitive_type_vector [cplus_primitive_type_short]
912 = builtin->builtin_short;
913 lai->primitive_type_vector [cplus_primitive_type_char]
914 = builtin->builtin_char;
915 lai->primitive_type_vector [cplus_primitive_type_float]
916 = builtin->builtin_float;
917 lai->primitive_type_vector [cplus_primitive_type_double]
918 = builtin->builtin_double;
919 lai->primitive_type_vector [cplus_primitive_type_void]
920 = builtin->builtin_void;
921 lai->primitive_type_vector [cplus_primitive_type_long_long]
922 = builtin->builtin_long_long;
923 lai->primitive_type_vector [cplus_primitive_type_signed_char]
924 = builtin->builtin_signed_char;
925 lai->primitive_type_vector [cplus_primitive_type_unsigned_char]
926 = builtin->builtin_unsigned_char;
927 lai->primitive_type_vector [cplus_primitive_type_unsigned_short]
928 = builtin->builtin_unsigned_short;
929 lai->primitive_type_vector [cplus_primitive_type_unsigned_int]
930 = builtin->builtin_unsigned_int;
931 lai->primitive_type_vector [cplus_primitive_type_unsigned_long]
932 = builtin->builtin_unsigned_long;
933 lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long]
934 = builtin->builtin_unsigned_long_long;
935 lai->primitive_type_vector [cplus_primitive_type_long_double]
936 = builtin->builtin_long_double;
937 lai->primitive_type_vector [cplus_primitive_type_complex]
938 = builtin->builtin_complex;
939 lai->primitive_type_vector [cplus_primitive_type_double_complex]
940 = builtin->builtin_double_complex;
941 lai->primitive_type_vector [cplus_primitive_type_bool]
942 = builtin->builtin_bool;
943 lai->primitive_type_vector [cplus_primitive_type_decfloat]
944 = builtin->builtin_decfloat;
945 lai->primitive_type_vector [cplus_primitive_type_decdouble]
946 = builtin->builtin_decdouble;
947 lai->primitive_type_vector [cplus_primitive_type_declong]
948 = builtin->builtin_declong;
950 lai->bool_type_symbol = "bool";
951 lai->bool_type_default = builtin->builtin_bool;
954 const struct language_defn cplus_language_defn =
956 "c++", /* Language name */
967 c_printchar, /* Print a character constant */
968 c_printstr, /* Function to print string constant */
969 c_emit_char, /* Print a single char */
970 c_print_type, /* Print a type using appropriate syntax */
971 c_print_typedef, /* Print a typedef using appropriate syntax */
972 c_val_print, /* Print a value using appropriate syntax */
973 c_value_print, /* Print a top-level value */
974 default_read_var_value, /* la_read_var_value */
975 cplus_skip_trampoline, /* Language specific skip_trampoline */
976 "this", /* name_of_this */
977 cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
978 cp_lookup_transparent_type, /* lookup_transparent_type */
979 cplus_demangle, /* Language specific symbol demangler */
980 cp_class_name_from_physname, /* Language specific
981 class_name_from_physname */
982 c_op_print_tab, /* expression operators for printing */
983 1, /* c-style arrays */
984 0, /* String lower bound */
985 default_word_break_characters,
986 default_make_symbol_completion_list,
987 cplus_language_arch_info,
988 default_print_array_index,
989 cp_pass_by_reference,
991 NULL, /* la_get_symbol_name_cmp */
992 iterate_over_symbols,
996 const struct language_defn asm_language_defn =
998 "asm", /* Language name */
1009 c_printchar, /* Print a character constant */
1010 c_printstr, /* Function to print string constant */
1011 c_emit_char, /* Print a single char */
1012 c_print_type, /* Print a type using appropriate syntax */
1013 c_print_typedef, /* Print a typedef using appropriate syntax */
1014 c_val_print, /* Print a value using appropriate syntax */
1015 c_value_print, /* Print a top-level value */
1016 default_read_var_value, /* la_read_var_value */
1017 NULL, /* Language specific skip_trampoline */
1018 NULL, /* name_of_this */
1019 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1020 basic_lookup_transparent_type,/* lookup_transparent_type */
1021 NULL, /* Language specific symbol demangler */
1022 NULL, /* Language specific
1023 class_name_from_physname */
1024 c_op_print_tab, /* expression operators for printing */
1025 1, /* c-style arrays */
1026 0, /* String lower bound */
1027 default_word_break_characters,
1028 default_make_symbol_completion_list,
1029 c_language_arch_info, /* FIXME: la_language_arch_info. */
1030 default_print_array_index,
1031 default_pass_by_reference,
1033 NULL, /* la_get_symbol_name_cmp */
1034 iterate_over_symbols,
1038 /* The following language_defn does not represent a real language.
1039 It just provides a minimal support a-la-C that should allow users
1040 to do some simple operations when debugging applications that use
1041 a language currently not supported by GDB. */
1043 const struct language_defn minimal_language_defn =
1045 "minimal", /* Language name */
1056 c_printchar, /* Print a character constant */
1057 c_printstr, /* Function to print string constant */
1058 c_emit_char, /* Print a single char */
1059 c_print_type, /* Print a type using appropriate syntax */
1060 c_print_typedef, /* Print a typedef using appropriate syntax */
1061 c_val_print, /* Print a value using appropriate syntax */
1062 c_value_print, /* Print a top-level value */
1063 default_read_var_value, /* la_read_var_value */
1064 NULL, /* Language specific skip_trampoline */
1065 NULL, /* name_of_this */
1066 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1067 basic_lookup_transparent_type,/* lookup_transparent_type */
1068 NULL, /* Language specific symbol demangler */
1069 NULL, /* Language specific
1070 class_name_from_physname */
1071 c_op_print_tab, /* expression operators for printing */
1072 1, /* c-style arrays */
1073 0, /* String lower bound */
1074 default_word_break_characters,
1075 default_make_symbol_completion_list,
1076 c_language_arch_info,
1077 default_print_array_index,
1078 default_pass_by_reference,
1080 NULL, /* la_get_symbol_name_cmp */
1081 iterate_over_symbols,
1086 _initialize_c_language (void)
1088 add_language (&c_language_defn);
1089 add_language (&cplus_language_defn);
1090 add_language (&asm_language_defn);
1091 add_language (&minimal_language_defn);