1 /* C language support routines for GDB, the GNU debugger.
3 Copyright (C) 1992-2014 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "expression.h"
24 #include "parser-defs.h"
29 #include "macroscope.h"
34 #include "cp-support.h"
35 #include "gdb_obstack.h"
37 #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 str_type = (classify_type (type, get_type_arch (type), &type_encoding)
207 fputs_filtered ("L", stream);
210 fputs_filtered ("u", stream);
213 fputs_filtered ("U", stream);
217 encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding;
219 generic_printstr (stream, type, string, length, encoding, force_ellipses,
223 /* Obtain a C string from the inferior storing it in a newly allocated
224 buffer in BUFFER, which should be freed by the caller. If the in-
225 and out-parameter *LENGTH is specified at -1, the string is read
226 until a null character of the appropriate width is found, otherwise
227 the string is read to the length of characters specified. The size
228 of a character is determined by the length of the target type of
229 the pointer or array.
231 If VALUE is an array with a known length, and *LENGTH is -1,
232 the function will not read past the end of the array. However, any
233 declared size of the array is ignored if *LENGTH > 0.
235 On completion, *LENGTH will be set to the size of the string read in
236 characters. (If a length of -1 is specified, the length returned
237 will not include the null character). CHARSET is always set to the
241 c_get_string (struct value *value, gdb_byte **buffer,
242 int *length, struct type **char_type,
243 const char **charset)
246 unsigned int fetchlimit;
247 struct type *type = check_typedef (value_type (value));
248 struct type *element_type = TYPE_TARGET_TYPE (type);
249 int req_length = *length;
250 enum bfd_endian byte_order
251 = gdbarch_byte_order (get_type_arch (type));
253 if (element_type == NULL)
256 if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
258 /* If we know the size of the array, we can use it as a limit on
259 the number of characters to be fetched. */
260 if (TYPE_NFIELDS (type) == 1
261 && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE)
263 LONGEST low_bound, high_bound;
265 get_discrete_bounds (TYPE_FIELD_TYPE (type, 0),
266 &low_bound, &high_bound);
267 fetchlimit = high_bound - low_bound + 1;
270 fetchlimit = UINT_MAX;
272 else if (TYPE_CODE (type) == TYPE_CODE_PTR)
273 fetchlimit = UINT_MAX;
275 /* We work only with arrays and pointers. */
278 if (! c_textual_element_type (element_type, 0))
280 classify_type (element_type, get_type_arch (element_type), charset);
281 width = TYPE_LENGTH (element_type);
283 /* If the string lives in GDB's memory instead of the inferior's,
284 then we just need to copy it to BUFFER. Also, since such strings
285 are arrays with known size, FETCHLIMIT will hold the size of the
287 if ((VALUE_LVAL (value) == not_lval
288 || VALUE_LVAL (value) == lval_internalvar)
289 && fetchlimit != UINT_MAX)
292 const gdb_byte *contents = value_contents (value);
294 /* If a length is specified, use that. */
298 /* Otherwise, look for a null character. */
299 for (i = 0; i < fetchlimit; i++)
300 if (extract_unsigned_integer (contents + i * width,
301 width, byte_order) == 0)
304 /* I is now either a user-defined length, the number of non-null
305 characters, or FETCHLIMIT. */
307 *buffer = xmalloc (*length);
308 memcpy (*buffer, contents, *length);
313 CORE_ADDR addr = value_as_address (value);
315 /* Prior to the fix for PR 16196 read_string would ignore fetchlimit
316 if length > 0. The old "broken" behaviour is the behaviour we want:
317 The caller may want to fetch 100 bytes from a variable length array
318 implemented using the common idiom of having an array of length 1 at
319 the end of a struct. In this case we want to ignore the declared
320 size of the array. However, it's counterintuitive to implement that
321 behaviour in read_string: what does fetchlimit otherwise mean if
322 length > 0. Therefore we implement the behaviour we want here:
323 If *length > 0, don't specify a fetchlimit. This preserves the
324 previous behaviour. We could move this check above where we know
325 whether the array is declared with a fixed size, but we only want
326 to apply this behaviour when calling read_string. PR 16286. */
328 fetchlimit = UINT_MAX;
330 err = read_string (addr, *length, width, fetchlimit,
331 byte_order, buffer, length);
335 memory_error (err, addr);
339 /* If the LENGTH is specified at -1, we want to return the string
340 length up to the terminating null character. If an actual length
341 was specified, we want to return the length of exactly what was
343 if (req_length == -1)
344 /* If the last character is null, subtract it from LENGTH. */
346 && extract_unsigned_integer (*buffer + *length - width,
347 width, byte_order) == 0)
350 /* The read_string function will return the number of bytes read.
351 If length returned from read_string was > 0, return the number of
352 characters read by dividing the number of bytes by width. */
354 *length = *length / width;
356 *char_type = element_type;
364 type_str = type_to_string (type);
367 make_cleanup (xfree, type_str);
368 error (_("Trying to read string with inappropriate type `%s'."),
372 error (_("Trying to read string with inappropriate type."));
377 /* Evaluating C and C++ expressions. */
379 /* Convert a UCN. The digits of the UCN start at P and extend no
380 farther than LIMIT. DEST_CHARSET is the name of the character set
381 into which the UCN should be converted. The results are written to
382 OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8.
383 Returns a pointer to just after the final digit of the UCN. */
386 convert_ucn (char *p, char *limit, const char *dest_charset,
387 struct obstack *output, int length)
389 unsigned long result = 0;
393 for (i = 0; i < length && p < limit && isxdigit (*p); ++i, ++p)
394 result = (result << 4) + host_hex_value (*p);
396 for (i = 3; i >= 0; --i)
398 data[i] = result & 0xff;
402 convert_between_encodings ("UTF-32BE", dest_charset, data,
403 4, 4, output, translit_none);
408 /* Emit a character, VALUE, which was specified numerically, to
409 OUTPUT. TYPE is the target character type. */
412 emit_numeric_character (struct type *type, unsigned long value,
413 struct obstack *output)
417 buffer = alloca (TYPE_LENGTH (type));
418 pack_long (buffer, type, value);
419 obstack_grow (output, buffer, TYPE_LENGTH (type));
422 /* Convert an octal escape sequence. TYPE is the target character
423 type. The digits of the escape sequence begin at P and extend no
424 farther than LIMIT. The result is written to OUTPUT. Returns a
425 pointer to just after the final digit of the escape sequence. */
428 convert_octal (struct type *type, char *p,
429 char *limit, struct obstack *output)
432 unsigned long value = 0;
435 i < 3 && p < limit && isdigit (*p) && *p != '8' && *p != '9';
438 value = 8 * value + host_hex_value (*p);
442 emit_numeric_character (type, value, output);
447 /* Convert a hex escape sequence. TYPE is the target character type.
448 The digits of the escape sequence begin at P and extend no farther
449 than LIMIT. The result is written to OUTPUT. Returns a pointer to
450 just after the final digit of the escape sequence. */
453 convert_hex (struct type *type, char *p,
454 char *limit, struct obstack *output)
456 unsigned long value = 0;
458 while (p < limit && isxdigit (*p))
460 value = 16 * value + host_hex_value (*p);
464 emit_numeric_character (type, value, output);
473 error (_("Malformed escape sequence")); \
476 /* Convert an escape sequence to a target format. TYPE is the target
477 character type to use, and DEST_CHARSET is the name of the target
478 character set. The backslash of the escape sequence is at *P, and
479 the escape sequence will not extend past LIMIT. The results are
480 written to OUTPUT. Returns a pointer to just past the final
481 character of the escape sequence. */
484 convert_escape (struct type *type, const char *dest_charset,
485 char *p, char *limit, struct obstack *output)
487 /* Skip the backslash. */
493 obstack_1grow (output, '\\');
500 error (_("\\x used with no following hex digits."));
501 p = convert_hex (type, p, limit, output);
512 p = convert_octal (type, p, limit, output);
518 int length = *p == 'u' ? 4 : 8;
522 error (_("\\u used with no following hex digits"));
523 p = convert_ucn (p, limit, dest_charset, output, length);
530 /* Given a single string from a (C-specific) OP_STRING list, convert
531 it to a target string, handling escape sequences specially. The
532 output is written to OUTPUT. DATA is the input string, which has
533 length LEN. DEST_CHARSET is the name of the target character set,
534 and TYPE is the type of target character to use. */
537 parse_one_string (struct obstack *output, char *data, int len,
538 const char *dest_charset, struct type *type)
548 /* Look for next escape, or the end of the input. */
549 while (p < limit && *p != '\\')
551 /* If we saw a run of characters, convert them all. */
553 convert_between_encodings (host_charset (), dest_charset,
554 (gdb_byte *) data, p - data, 1,
555 output, translit_none);
556 /* If we saw an escape, convert it. */
558 p = convert_escape (type, dest_charset, p, limit, output);
563 /* Expression evaluator for the C language family. Most operations
564 are delegated to evaluate_subexp_standard; see that function for a
565 description of the arguments. */
568 evaluate_subexp_c (struct type *expect_type, struct expression *exp,
569 int *pos, enum noside noside)
571 enum exp_opcode op = exp->elts[*pos].opcode;
579 struct obstack output;
580 struct cleanup *cleanup;
581 struct value *result;
582 enum c_string_type dest_type;
583 const char *dest_charset;
584 int satisfy_expected = 0;
586 obstack_init (&output);
587 cleanup = make_cleanup_obstack_free (&output);
590 oplen = longest_to_int (exp->elts[*pos].longconst);
593 limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1);
595 = (enum c_string_type) longest_to_int (exp->elts[*pos].longconst);
596 switch (dest_type & ~C_CHAR)
599 type = language_string_char_type (exp->language_defn,
603 type = lookup_typename (exp->language_defn, exp->gdbarch,
607 type = lookup_typename (exp->language_defn, exp->gdbarch,
608 "char16_t", NULL, 0);
611 type = lookup_typename (exp->language_defn, exp->gdbarch,
612 "char32_t", NULL, 0);
615 internal_error (__FILE__, __LINE__, _("unhandled c_string_type"));
618 /* Ensure TYPE_LENGTH is valid for TYPE. */
619 check_typedef (type);
621 /* If the caller expects an array of some integral type,
622 satisfy them. If something odder is expected, rely on the
624 if (expect_type && TYPE_CODE (expect_type) == TYPE_CODE_ARRAY)
626 struct type *element_type
627 = check_typedef (TYPE_TARGET_TYPE (expect_type));
629 if (TYPE_CODE (element_type) == TYPE_CODE_INT
630 || TYPE_CODE (element_type) == TYPE_CODE_CHAR)
633 satisfy_expected = 1;
637 dest_charset = charset_for_string_type (dest_type, exp->gdbarch);
644 len = longest_to_int (exp->elts[*pos].longconst);
647 if (noside != EVAL_SKIP)
648 parse_one_string (&output, &exp->elts[*pos].string, len,
650 *pos += BYTES_TO_EXP_ELEM (len);
653 /* Skip the trailing length and opcode. */
656 if (noside == EVAL_SKIP)
658 /* Return a dummy value of the appropriate type. */
659 if (expect_type != NULL)
660 result = allocate_value (expect_type);
661 else if ((dest_type & C_CHAR) != 0)
662 result = allocate_value (type);
664 result = value_cstring ("", 0, type);
665 do_cleanups (cleanup);
669 if ((dest_type & C_CHAR) != 0)
673 if (obstack_object_size (&output) != TYPE_LENGTH (type))
674 error (_("Could not convert character "
675 "constant to target character set"));
676 value = unpack_long (type, (gdb_byte *) obstack_base (&output));
677 result = value_from_longest (type, value);
683 /* Write the terminating character. */
684 for (i = 0; i < TYPE_LENGTH (type); ++i)
685 obstack_1grow (&output, 0);
687 if (satisfy_expected)
689 LONGEST low_bound, high_bound;
690 int element_size = TYPE_LENGTH (type);
692 if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type),
693 &low_bound, &high_bound) < 0)
696 high_bound = (TYPE_LENGTH (expect_type) / element_size) - 1;
698 if (obstack_object_size (&output) / element_size
699 > (high_bound - low_bound + 1))
700 error (_("Too many array elements"));
702 result = allocate_value (expect_type);
703 memcpy (value_contents_raw (result), obstack_base (&output),
704 obstack_object_size (&output));
707 result = value_cstring (obstack_base (&output),
708 obstack_object_size (&output),
711 do_cleanups (cleanup);
719 return evaluate_subexp_standard (expect_type, exp, pos, noside);
724 /* Table mapping opcodes into strings for printing operators
725 and precedences of the operators. */
727 const struct op_print c_op_print_tab[] =
729 {",", BINOP_COMMA, PREC_COMMA, 0},
730 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
731 {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
732 {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
733 {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
734 {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
735 {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
736 {"==", BINOP_EQUAL, PREC_EQUAL, 0},
737 {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
738 {"<=", BINOP_LEQ, PREC_ORDER, 0},
739 {">=", BINOP_GEQ, PREC_ORDER, 0},
740 {">", BINOP_GTR, PREC_ORDER, 0},
741 {"<", BINOP_LESS, PREC_ORDER, 0},
742 {">>", BINOP_RSH, PREC_SHIFT, 0},
743 {"<<", BINOP_LSH, PREC_SHIFT, 0},
744 {"+", BINOP_ADD, PREC_ADD, 0},
745 {"-", BINOP_SUB, PREC_ADD, 0},
746 {"*", BINOP_MUL, PREC_MUL, 0},
747 {"/", BINOP_DIV, PREC_MUL, 0},
748 {"%", BINOP_REM, PREC_MUL, 0},
749 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
750 {"+", UNOP_PLUS, PREC_PREFIX, 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,
873 enum cplus_primitive_types {
874 cplus_primitive_type_int,
875 cplus_primitive_type_long,
876 cplus_primitive_type_short,
877 cplus_primitive_type_char,
878 cplus_primitive_type_float,
879 cplus_primitive_type_double,
880 cplus_primitive_type_void,
881 cplus_primitive_type_long_long,
882 cplus_primitive_type_signed_char,
883 cplus_primitive_type_unsigned_char,
884 cplus_primitive_type_unsigned_short,
885 cplus_primitive_type_unsigned_int,
886 cplus_primitive_type_unsigned_long,
887 cplus_primitive_type_unsigned_long_long,
888 cplus_primitive_type_long_double,
889 cplus_primitive_type_complex,
890 cplus_primitive_type_double_complex,
891 cplus_primitive_type_bool,
892 cplus_primitive_type_decfloat,
893 cplus_primitive_type_decdouble,
894 cplus_primitive_type_declong,
895 nr_cplus_primitive_types
899 cplus_language_arch_info (struct gdbarch *gdbarch,
900 struct language_arch_info *lai)
902 const struct builtin_type *builtin = builtin_type (gdbarch);
904 lai->string_char_type = builtin->builtin_char;
905 lai->primitive_type_vector
906 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1,
908 lai->primitive_type_vector [cplus_primitive_type_int]
909 = builtin->builtin_int;
910 lai->primitive_type_vector [cplus_primitive_type_long]
911 = builtin->builtin_long;
912 lai->primitive_type_vector [cplus_primitive_type_short]
913 = builtin->builtin_short;
914 lai->primitive_type_vector [cplus_primitive_type_char]
915 = builtin->builtin_char;
916 lai->primitive_type_vector [cplus_primitive_type_float]
917 = builtin->builtin_float;
918 lai->primitive_type_vector [cplus_primitive_type_double]
919 = builtin->builtin_double;
920 lai->primitive_type_vector [cplus_primitive_type_void]
921 = builtin->builtin_void;
922 lai->primitive_type_vector [cplus_primitive_type_long_long]
923 = builtin->builtin_long_long;
924 lai->primitive_type_vector [cplus_primitive_type_signed_char]
925 = builtin->builtin_signed_char;
926 lai->primitive_type_vector [cplus_primitive_type_unsigned_char]
927 = builtin->builtin_unsigned_char;
928 lai->primitive_type_vector [cplus_primitive_type_unsigned_short]
929 = builtin->builtin_unsigned_short;
930 lai->primitive_type_vector [cplus_primitive_type_unsigned_int]
931 = builtin->builtin_unsigned_int;
932 lai->primitive_type_vector [cplus_primitive_type_unsigned_long]
933 = builtin->builtin_unsigned_long;
934 lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long]
935 = builtin->builtin_unsigned_long_long;
936 lai->primitive_type_vector [cplus_primitive_type_long_double]
937 = builtin->builtin_long_double;
938 lai->primitive_type_vector [cplus_primitive_type_complex]
939 = builtin->builtin_complex;
940 lai->primitive_type_vector [cplus_primitive_type_double_complex]
941 = builtin->builtin_double_complex;
942 lai->primitive_type_vector [cplus_primitive_type_bool]
943 = builtin->builtin_bool;
944 lai->primitive_type_vector [cplus_primitive_type_decfloat]
945 = builtin->builtin_decfloat;
946 lai->primitive_type_vector [cplus_primitive_type_decdouble]
947 = builtin->builtin_decdouble;
948 lai->primitive_type_vector [cplus_primitive_type_declong]
949 = builtin->builtin_declong;
951 lai->bool_type_symbol = "bool";
952 lai->bool_type_default = builtin->builtin_bool;
955 const struct language_defn cplus_language_defn =
957 "c++", /* Language name */
968 c_printchar, /* Print a character constant */
969 c_printstr, /* Function to print string constant */
970 c_emit_char, /* Print a single char */
971 c_print_type, /* Print a type using appropriate syntax */
972 c_print_typedef, /* Print a typedef using appropriate syntax */
973 c_val_print, /* Print a value using appropriate syntax */
974 c_value_print, /* Print a top-level value */
975 default_read_var_value, /* la_read_var_value */
976 cplus_skip_trampoline, /* Language specific skip_trampoline */
977 "this", /* name_of_this */
978 cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
979 cp_lookup_transparent_type, /* lookup_transparent_type */
980 gdb_demangle, /* Language specific symbol demangler */
981 cp_class_name_from_physname, /* Language specific
982 class_name_from_physname */
983 c_op_print_tab, /* expression operators for printing */
984 1, /* c-style arrays */
985 0, /* String lower bound */
986 default_word_break_characters,
987 default_make_symbol_completion_list,
988 cplus_language_arch_info,
989 default_print_array_index,
990 cp_pass_by_reference,
992 NULL, /* la_get_symbol_name_cmp */
993 iterate_over_symbols,
998 const struct language_defn asm_language_defn =
1000 "asm", /* Language name */
1011 c_printchar, /* Print a character constant */
1012 c_printstr, /* Function to print string constant */
1013 c_emit_char, /* Print a single char */
1014 c_print_type, /* Print a type using appropriate syntax */
1015 c_print_typedef, /* Print a typedef using appropriate syntax */
1016 c_val_print, /* Print a value using appropriate syntax */
1017 c_value_print, /* Print a top-level value */
1018 default_read_var_value, /* la_read_var_value */
1019 NULL, /* Language specific skip_trampoline */
1020 NULL, /* name_of_this */
1021 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1022 basic_lookup_transparent_type,/* lookup_transparent_type */
1023 NULL, /* Language specific symbol demangler */
1024 NULL, /* Language specific
1025 class_name_from_physname */
1026 c_op_print_tab, /* expression operators for printing */
1027 1, /* c-style arrays */
1028 0, /* String lower bound */
1029 default_word_break_characters,
1030 default_make_symbol_completion_list,
1031 c_language_arch_info, /* FIXME: la_language_arch_info. */
1032 default_print_array_index,
1033 default_pass_by_reference,
1035 NULL, /* la_get_symbol_name_cmp */
1036 iterate_over_symbols,
1037 &default_varobj_ops,
1041 /* The following language_defn does not represent a real language.
1042 It just provides a minimal support a-la-C that should allow users
1043 to do some simple operations when debugging applications that use
1044 a language currently not supported by GDB. */
1046 const struct language_defn minimal_language_defn =
1048 "minimal", /* Language name */
1059 c_printchar, /* Print a character constant */
1060 c_printstr, /* Function to print string constant */
1061 c_emit_char, /* Print a single char */
1062 c_print_type, /* Print a type using appropriate syntax */
1063 c_print_typedef, /* Print a typedef using appropriate syntax */
1064 c_val_print, /* Print a value using appropriate syntax */
1065 c_value_print, /* Print a top-level value */
1066 default_read_var_value, /* la_read_var_value */
1067 NULL, /* Language specific skip_trampoline */
1068 NULL, /* name_of_this */
1069 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1070 basic_lookup_transparent_type,/* lookup_transparent_type */
1071 NULL, /* Language specific symbol demangler */
1072 NULL, /* Language specific
1073 class_name_from_physname */
1074 c_op_print_tab, /* expression operators for printing */
1075 1, /* c-style arrays */
1076 0, /* String lower bound */
1077 default_word_break_characters,
1078 default_make_symbol_completion_list,
1079 c_language_arch_info,
1080 default_print_array_index,
1081 default_pass_by_reference,
1083 NULL, /* la_get_symbol_name_cmp */
1084 iterate_over_symbols,
1085 &default_varobj_ops,
1090 _initialize_c_language (void)
1092 add_language (&c_language_defn);
1093 add_language (&cplus_language_defn);
1094 add_language (&asm_language_defn);
1095 add_language (&minimal_language_defn);