1 /* C language support routines for GDB, the GNU debugger.
3 Copyright (C) 1992-2013 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"
28 #include "macroscope.h"
29 #include "gdb_assert.h"
31 #include "gdb_string.h"
34 #include "cp-support.h"
35 #include "gdb_obstack.h"
37 #include "exceptions.h"
39 extern void _initialize_c_language (void);
41 /* Given a C string type, STR_TYPE, return the corresponding target
42 character set name. */
45 charset_for_string_type (enum c_string_type str_type
,
46 struct gdbarch
*gdbarch
)
48 switch (str_type
& ~C_CHAR
)
51 return target_charset (gdbarch
);
53 return target_wide_charset (gdbarch
);
55 /* FIXME: UTF-16 is not always correct. */
56 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
61 /* FIXME: UTF-32 is not always correct. */
62 if (gdbarch_byte_order (gdbarch
) == BFD_ENDIAN_BIG
)
67 internal_error (__FILE__
, __LINE__
, _("unhandled c_string_type"));
70 /* Classify ELTTYPE according to what kind of character it is. Return
71 the enum constant representing the character type. Also set
72 *ENCODING to the name of the character set to use when converting
73 characters of this type in target BYTE_ORDER to the host character
76 static enum c_string_type
77 classify_type (struct type
*elttype
, struct gdbarch
*gdbarch
,
78 const char **encoding
)
80 enum c_string_type result
;
82 /* We loop because ELTTYPE may be a typedef, and we want to
83 successively peel each typedef until we reach a type we
84 understand. We don't use CHECK_TYPEDEF because that will strip
85 all typedefs at once -- but in C, wchar_t is itself a typedef, so
86 that would do the wrong thing. */
89 const char *name
= TYPE_NAME (elttype
);
91 if (TYPE_CODE (elttype
) == TYPE_CODE_CHAR
|| !name
)
97 if (!strcmp (name
, "wchar_t"))
103 if (!strcmp (name
, "char16_t"))
109 if (!strcmp (name
, "char32_t"))
115 if (TYPE_CODE (elttype
) != TYPE_CODE_TYPEDEF
)
118 /* Call for side effects. */
119 check_typedef (elttype
);
121 if (TYPE_TARGET_TYPE (elttype
))
122 elttype
= TYPE_TARGET_TYPE (elttype
);
125 /* Perhaps check_typedef did not update the target type. In
126 this case, force the lookup again and hope it works out.
127 It never will for C, but it might for C++. */
128 CHECK_TYPEDEF (elttype
);
137 *encoding
= charset_for_string_type (result
, gdbarch
);
142 /* Print the character C on STREAM as part of the contents of a
143 literal string whose delimiter is QUOTER. Note that that format
144 for printing characters and strings is language specific. */
147 c_emit_char (int c
, struct type
*type
,
148 struct ui_file
*stream
, int quoter
)
150 const char *encoding
;
152 classify_type (type
, get_type_arch (type
), &encoding
);
153 generic_emit_char (c
, type
, stream
, quoter
, encoding
);
157 c_printchar (int c
, struct type
*type
, struct ui_file
*stream
)
159 enum c_string_type str_type
;
161 str_type
= classify_type (type
, get_type_arch (type
), NULL
);
167 fputc_filtered ('L', stream
);
170 fputc_filtered ('u', stream
);
173 fputc_filtered ('U', stream
);
177 fputc_filtered ('\'', stream
);
178 LA_EMIT_CHAR (c
, type
, stream
, '\'');
179 fputc_filtered ('\'', stream
);
182 /* Print the character string STRING, printing at most LENGTH
183 characters. LENGTH is -1 if the string is nul terminated. Each
184 character is WIDTH bytes long. Printing stops early if the number
185 hits print_max; repeat counts are printed as appropriate. Print
186 ellipses at the end if we had to stop before printing LENGTH
187 characters, or if FORCE_ELLIPSES. */
190 c_printstr (struct ui_file
*stream
, struct type
*type
,
191 const gdb_byte
*string
, unsigned int length
,
192 const char *user_encoding
, int force_ellipses
,
193 const struct value_print_options
*options
)
195 enum c_string_type str_type
;
196 const char *type_encoding
;
197 const char *encoding
;
199 enum bfd_endian byte_order
= gdbarch_byte_order (get_type_arch (type
));
201 unsigned int things_printed
= 0;
204 struct obstack wchar_buf
, output
;
205 struct cleanup
*cleanup
;
206 struct wchar_iterator
*iter
;
210 str_type
= (classify_type (type
, get_type_arch (type
), &type_encoding
)
217 fputs_filtered ("L", stream
);
220 fputs_filtered ("u", stream
);
223 fputs_filtered ("U", stream
);
227 encoding
= (user_encoding
&& *user_encoding
) ? user_encoding
: type_encoding
;
229 generic_printstr (stream
, type
, string
, length
, encoding
, force_ellipses
,
233 /* Obtain a C string from the inferior storing it in a newly allocated
234 buffer in BUFFER, which should be freed by the caller. If the in-
235 and out-parameter *LENGTH is specified at -1, the string is read
236 until a null character of the appropriate width is found, otherwise
237 the string is read to the length of characters specified. The size
238 of a character is determined by the length of the target type of
239 the pointer or array. If VALUE is an array with a known length,
240 the function will not read past the end of the array. On
241 completion, *LENGTH will be set to the size of the string read in
242 characters. (If a length of -1 is specified, the length returned
243 will not include the null character). CHARSET is always set to the
247 c_get_string (struct value
*value
, gdb_byte
**buffer
,
248 int *length
, struct type
**char_type
,
249 const char **charset
)
252 unsigned int fetchlimit
;
253 struct type
*type
= check_typedef (value_type (value
));
254 struct type
*element_type
= TYPE_TARGET_TYPE (type
);
255 int req_length
= *length
;
256 enum bfd_endian byte_order
257 = gdbarch_byte_order (get_type_arch (type
));
258 enum c_string_type kind
;
260 if (element_type
== NULL
)
263 if (TYPE_CODE (type
) == TYPE_CODE_ARRAY
)
265 /* If we know the size of the array, we can use it as a limit on
266 the number of characters to be fetched. */
267 if (TYPE_NFIELDS (type
) == 1
268 && TYPE_CODE (TYPE_FIELD_TYPE (type
, 0)) == TYPE_CODE_RANGE
)
270 LONGEST low_bound
, high_bound
;
272 get_discrete_bounds (TYPE_FIELD_TYPE (type
, 0),
273 &low_bound
, &high_bound
);
274 fetchlimit
= high_bound
- low_bound
+ 1;
277 fetchlimit
= UINT_MAX
;
279 else if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
280 fetchlimit
= UINT_MAX
;
282 /* We work only with arrays and pointers. */
285 if (! c_textual_element_type (element_type
, 0))
287 kind
= classify_type (element_type
,
288 get_type_arch (element_type
),
290 width
= TYPE_LENGTH (element_type
);
292 /* If the string lives in GDB's memory instead of the inferior's,
293 then we just need to copy it to BUFFER. Also, since such strings
294 are arrays with known size, FETCHLIMIT will hold the size of the
296 if ((VALUE_LVAL (value
) == not_lval
297 || VALUE_LVAL (value
) == lval_internalvar
)
298 && fetchlimit
!= UINT_MAX
)
301 const gdb_byte
*contents
= value_contents (value
);
303 /* If a length is specified, use that. */
307 /* Otherwise, look for a null character. */
308 for (i
= 0; i
< fetchlimit
; i
++)
309 if (extract_unsigned_integer (contents
+ i
* width
,
310 width
, byte_order
) == 0)
313 /* I is now either a user-defined length, the number of non-null
314 characters, or FETCHLIMIT. */
316 *buffer
= xmalloc (*length
);
317 memcpy (*buffer
, contents
, *length
);
322 CORE_ADDR addr
= value_as_address (value
);
324 err
= read_string (addr
, *length
, width
, fetchlimit
,
325 byte_order
, buffer
, length
);
330 throw_error (MEMORY_ERROR
, "Address %s out of bounds",
331 paddress (get_type_arch (type
), addr
));
333 error (_("Error reading string from inferior: %s"),
334 safe_strerror (err
));
338 /* If the LENGTH is specified at -1, we want to return the string
339 length up to the terminating null character. If an actual length
340 was specified, we want to return the length of exactly what was
342 if (req_length
== -1)
343 /* If the last character is null, subtract it from LENGTH. */
345 && extract_unsigned_integer (*buffer
+ *length
- width
,
346 width
, byte_order
) == 0)
349 /* The read_string function will return the number of bytes read.
350 If length returned from read_string was > 0, return the number of
351 characters read by dividing the number of bytes by width. */
353 *length
= *length
/ width
;
355 *char_type
= element_type
;
363 type_str
= type_to_string (type
);
366 make_cleanup (xfree
, type_str
);
367 error (_("Trying to read string with inappropriate type `%s'."),
371 error (_("Trying to read string with inappropriate type."));
376 /* Evaluating C and C++ expressions. */
378 /* Convert a UCN. The digits of the UCN start at P and extend no
379 farther than LIMIT. DEST_CHARSET is the name of the character set
380 into which the UCN should be converted. The results are written to
381 OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8.
382 Returns a pointer to just after the final digit of the UCN. */
385 convert_ucn (char *p
, char *limit
, const char *dest_charset
,
386 struct obstack
*output
, int length
)
388 unsigned long result
= 0;
392 for (i
= 0; i
< length
&& p
< limit
&& isxdigit (*p
); ++i
, ++p
)
393 result
= (result
<< 4) + host_hex_value (*p
);
395 for (i
= 3; i
>= 0; --i
)
397 data
[i
] = result
& 0xff;
401 convert_between_encodings ("UTF-32BE", dest_charset
, data
,
402 4, 4, output
, translit_none
);
407 /* Emit a character, VALUE, which was specified numerically, to
408 OUTPUT. TYPE is the target character type. */
411 emit_numeric_character (struct type
*type
, unsigned long value
,
412 struct obstack
*output
)
416 buffer
= alloca (TYPE_LENGTH (type
));
417 pack_long (buffer
, type
, value
);
418 obstack_grow (output
, buffer
, TYPE_LENGTH (type
));
421 /* Convert an octal escape sequence. TYPE is the target character
422 type. The digits of the escape sequence begin at P and extend no
423 farther than LIMIT. The result is written to OUTPUT. Returns a
424 pointer to just after the final digit of the escape sequence. */
427 convert_octal (struct type
*type
, char *p
,
428 char *limit
, struct obstack
*output
)
431 unsigned long value
= 0;
434 i
< 3 && p
< limit
&& isdigit (*p
) && *p
!= '8' && *p
!= '9';
437 value
= 8 * value
+ host_hex_value (*p
);
441 emit_numeric_character (type
, value
, output
);
446 /* Convert a hex escape sequence. TYPE is the target character type.
447 The digits of the escape sequence begin at P and extend no farther
448 than LIMIT. The result is written to OUTPUT. Returns a pointer to
449 just after the final digit of the escape sequence. */
452 convert_hex (struct type
*type
, char *p
,
453 char *limit
, struct obstack
*output
)
455 unsigned long value
= 0;
457 while (p
< limit
&& isxdigit (*p
))
459 value
= 16 * value
+ host_hex_value (*p
);
463 emit_numeric_character (type
, value
, output
);
472 error (_("Malformed escape sequence")); \
475 /* Convert an escape sequence to a target format. TYPE is the target
476 character type to use, and DEST_CHARSET is the name of the target
477 character set. The backslash of the escape sequence is at *P, and
478 the escape sequence will not extend past LIMIT. The results are
479 written to OUTPUT. Returns a pointer to just past the final
480 character of the escape sequence. */
483 convert_escape (struct type
*type
, const char *dest_charset
,
484 char *p
, char *limit
, struct obstack
*output
)
486 /* Skip the backslash. */
492 obstack_1grow (output
, '\\');
499 error (_("\\x used with no following hex digits."));
500 p
= convert_hex (type
, p
, limit
, output
);
511 p
= convert_octal (type
, p
, limit
, output
);
517 int length
= *p
== 'u' ? 4 : 8;
521 error (_("\\u used with no following hex digits"));
522 p
= convert_ucn (p
, limit
, dest_charset
, output
, length
);
529 /* Given a single string from a (C-specific) OP_STRING list, convert
530 it to a target string, handling escape sequences specially. The
531 output is written to OUTPUT. DATA is the input string, which has
532 length LEN. DEST_CHARSET is the name of the target character set,
533 and TYPE is the type of target character to use. */
536 parse_one_string (struct obstack
*output
, char *data
, int len
,
537 const char *dest_charset
, struct type
*type
)
547 /* Look for next escape, or the end of the input. */
548 while (p
< limit
&& *p
!= '\\')
550 /* If we saw a run of characters, convert them all. */
552 convert_between_encodings (host_charset (), dest_charset
,
554 output
, translit_none
);
555 /* If we saw an escape, convert it. */
557 p
= convert_escape (type
, dest_charset
, p
, limit
, output
);
562 /* Expression evaluator for the C language family. Most operations
563 are delegated to evaluate_subexp_standard; see that function for a
564 description of the arguments. */
567 evaluate_subexp_c (struct type
*expect_type
, struct expression
*exp
,
568 int *pos
, enum noside noside
)
570 enum exp_opcode op
= exp
->elts
[*pos
].opcode
;
578 struct obstack output
;
579 struct cleanup
*cleanup
;
580 struct value
*result
;
581 enum c_string_type dest_type
;
582 const char *dest_charset
;
583 int satisfy_expected
= 0;
585 obstack_init (&output
);
586 cleanup
= make_cleanup_obstack_free (&output
);
589 oplen
= longest_to_int (exp
->elts
[*pos
].longconst
);
592 limit
= *pos
+ BYTES_TO_EXP_ELEM (oplen
+ 1);
594 = (enum c_string_type
) longest_to_int (exp
->elts
[*pos
].longconst
);
595 switch (dest_type
& ~C_CHAR
)
598 type
= language_string_char_type (exp
->language_defn
,
602 type
= lookup_typename (exp
->language_defn
, exp
->gdbarch
,
606 type
= lookup_typename (exp
->language_defn
, exp
->gdbarch
,
607 "char16_t", NULL
, 0);
610 type
= lookup_typename (exp
->language_defn
, exp
->gdbarch
,
611 "char32_t", NULL
, 0);
614 internal_error (__FILE__
, __LINE__
, _("unhandled c_string_type"));
617 /* Ensure TYPE_LENGTH is valid for TYPE. */
618 check_typedef (type
);
620 /* If the caller expects an array of some integral type,
621 satisfy them. If something odder is expected, rely on the
623 if (expect_type
&& TYPE_CODE (expect_type
) == TYPE_CODE_ARRAY
)
625 struct type
*element_type
626 = check_typedef (TYPE_TARGET_TYPE (expect_type
));
628 if (TYPE_CODE (element_type
) == TYPE_CODE_INT
629 || TYPE_CODE (element_type
) == TYPE_CODE_CHAR
)
632 satisfy_expected
= 1;
636 dest_charset
= charset_for_string_type (dest_type
, exp
->gdbarch
);
643 len
= longest_to_int (exp
->elts
[*pos
].longconst
);
646 if (noside
!= EVAL_SKIP
)
647 parse_one_string (&output
, &exp
->elts
[*pos
].string
, len
,
649 *pos
+= BYTES_TO_EXP_ELEM (len
);
652 /* Skip the trailing length and opcode. */
655 if (noside
== EVAL_SKIP
)
657 /* Return a dummy value of the appropriate type. */
658 if (expect_type
!= NULL
)
659 result
= allocate_value (expect_type
);
660 else if ((dest_type
& C_CHAR
) != 0)
661 result
= allocate_value (type
);
663 result
= value_cstring ("", 0, type
);
664 do_cleanups (cleanup
);
668 if ((dest_type
& C_CHAR
) != 0)
672 if (obstack_object_size (&output
) != TYPE_LENGTH (type
))
673 error (_("Could not convert character "
674 "constant to target character set"));
675 value
= unpack_long (type
, obstack_base (&output
));
676 result
= value_from_longest (type
, value
);
682 /* Write the terminating character. */
683 for (i
= 0; i
< TYPE_LENGTH (type
); ++i
)
684 obstack_1grow (&output
, 0);
686 if (satisfy_expected
)
688 LONGEST low_bound
, high_bound
;
689 int element_size
= TYPE_LENGTH (type
);
691 if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type
),
692 &low_bound
, &high_bound
) < 0)
695 high_bound
= (TYPE_LENGTH (expect_type
) / element_size
) - 1;
697 if (obstack_object_size (&output
) / element_size
698 > (high_bound
- low_bound
+ 1))
699 error (_("Too many array elements"));
701 result
= allocate_value (expect_type
);
702 memcpy (value_contents_raw (result
), obstack_base (&output
),
703 obstack_object_size (&output
));
706 result
= value_cstring (obstack_base (&output
),
707 obstack_object_size (&output
),
710 do_cleanups (cleanup
);
718 return evaluate_subexp_standard (expect_type
, exp
, pos
, noside
);
723 /* Table mapping opcodes into strings for printing operators
724 and precedences of the operators. */
726 const struct op_print c_op_print_tab
[] =
728 {",", BINOP_COMMA
, PREC_COMMA
, 0},
729 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
730 {"||", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
731 {"&&", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
732 {"|", BINOP_BITWISE_IOR
, PREC_BITWISE_IOR
, 0},
733 {"^", BINOP_BITWISE_XOR
, PREC_BITWISE_XOR
, 0},
734 {"&", BINOP_BITWISE_AND
, PREC_BITWISE_AND
, 0},
735 {"==", BINOP_EQUAL
, PREC_EQUAL
, 0},
736 {"!=", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
737 {"<=", BINOP_LEQ
, PREC_ORDER
, 0},
738 {">=", BINOP_GEQ
, PREC_ORDER
, 0},
739 {">", BINOP_GTR
, PREC_ORDER
, 0},
740 {"<", BINOP_LESS
, PREC_ORDER
, 0},
741 {">>", BINOP_RSH
, PREC_SHIFT
, 0},
742 {"<<", BINOP_LSH
, PREC_SHIFT
, 0},
743 {"+", BINOP_ADD
, PREC_ADD
, 0},
744 {"-", BINOP_SUB
, PREC_ADD
, 0},
745 {"*", BINOP_MUL
, PREC_MUL
, 0},
746 {"/", BINOP_DIV
, PREC_MUL
, 0},
747 {"%", BINOP_REM
, PREC_MUL
, 0},
748 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
749 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
750 {"!", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
751 {"~", UNOP_COMPLEMENT
, PREC_PREFIX
, 0},
752 {"*", UNOP_IND
, PREC_PREFIX
, 0},
753 {"&", UNOP_ADDR
, PREC_PREFIX
, 0},
754 {"sizeof ", UNOP_SIZEOF
, PREC_PREFIX
, 0},
755 {"++", UNOP_PREINCREMENT
, PREC_PREFIX
, 0},
756 {"--", UNOP_PREDECREMENT
, PREC_PREFIX
, 0},
760 enum c_primitive_types
{
761 c_primitive_type_int
,
762 c_primitive_type_long
,
763 c_primitive_type_short
,
764 c_primitive_type_char
,
765 c_primitive_type_float
,
766 c_primitive_type_double
,
767 c_primitive_type_void
,
768 c_primitive_type_long_long
,
769 c_primitive_type_signed_char
,
770 c_primitive_type_unsigned_char
,
771 c_primitive_type_unsigned_short
,
772 c_primitive_type_unsigned_int
,
773 c_primitive_type_unsigned_long
,
774 c_primitive_type_unsigned_long_long
,
775 c_primitive_type_long_double
,
776 c_primitive_type_complex
,
777 c_primitive_type_double_complex
,
778 c_primitive_type_decfloat
,
779 c_primitive_type_decdouble
,
780 c_primitive_type_declong
,
785 c_language_arch_info (struct gdbarch
*gdbarch
,
786 struct language_arch_info
*lai
)
788 const struct builtin_type
*builtin
= builtin_type (gdbarch
);
790 lai
->string_char_type
= builtin
->builtin_char
;
791 lai
->primitive_type_vector
792 = GDBARCH_OBSTACK_CALLOC (gdbarch
, nr_c_primitive_types
+ 1,
794 lai
->primitive_type_vector
[c_primitive_type_int
] = builtin
->builtin_int
;
795 lai
->primitive_type_vector
[c_primitive_type_long
] = builtin
->builtin_long
;
796 lai
->primitive_type_vector
[c_primitive_type_short
] = builtin
->builtin_short
;
797 lai
->primitive_type_vector
[c_primitive_type_char
] = builtin
->builtin_char
;
798 lai
->primitive_type_vector
[c_primitive_type_float
] = builtin
->builtin_float
;
799 lai
->primitive_type_vector
[c_primitive_type_double
] = builtin
->builtin_double
;
800 lai
->primitive_type_vector
[c_primitive_type_void
] = builtin
->builtin_void
;
801 lai
->primitive_type_vector
[c_primitive_type_long_long
] = builtin
->builtin_long_long
;
802 lai
->primitive_type_vector
[c_primitive_type_signed_char
] = builtin
->builtin_signed_char
;
803 lai
->primitive_type_vector
[c_primitive_type_unsigned_char
] = builtin
->builtin_unsigned_char
;
804 lai
->primitive_type_vector
[c_primitive_type_unsigned_short
] = builtin
->builtin_unsigned_short
;
805 lai
->primitive_type_vector
[c_primitive_type_unsigned_int
] = builtin
->builtin_unsigned_int
;
806 lai
->primitive_type_vector
[c_primitive_type_unsigned_long
] = builtin
->builtin_unsigned_long
;
807 lai
->primitive_type_vector
[c_primitive_type_unsigned_long_long
] = builtin
->builtin_unsigned_long_long
;
808 lai
->primitive_type_vector
[c_primitive_type_long_double
] = builtin
->builtin_long_double
;
809 lai
->primitive_type_vector
[c_primitive_type_complex
] = builtin
->builtin_complex
;
810 lai
->primitive_type_vector
[c_primitive_type_double_complex
] = builtin
->builtin_double_complex
;
811 lai
->primitive_type_vector
[c_primitive_type_decfloat
] = builtin
->builtin_decfloat
;
812 lai
->primitive_type_vector
[c_primitive_type_decdouble
] = builtin
->builtin_decdouble
;
813 lai
->primitive_type_vector
[c_primitive_type_declong
] = builtin
->builtin_declong
;
815 lai
->bool_type_default
= builtin
->builtin_int
;
818 const struct exp_descriptor exp_descriptor_c
=
820 print_subexp_standard
,
821 operator_length_standard
,
822 operator_check_standard
,
824 dump_subexp_body_standard
,
828 const struct language_defn c_language_defn
=
830 "c", /* Language name */
840 c_printchar
, /* Print a character constant */
841 c_printstr
, /* Function to print string constant */
842 c_emit_char
, /* Print a single char */
843 c_print_type
, /* Print a type using appropriate syntax */
844 c_print_typedef
, /* Print a typedef using appropriate syntax */
845 c_val_print
, /* Print a value using appropriate syntax */
846 c_value_print
, /* Print a top-level value */
847 default_read_var_value
, /* la_read_var_value */
848 NULL
, /* Language specific skip_trampoline */
849 NULL
, /* name_of_this */
850 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
851 basic_lookup_transparent_type
,/* lookup_transparent_type */
852 NULL
, /* Language specific symbol demangler */
853 NULL
, /* Language specific
854 class_name_from_physname */
855 c_op_print_tab
, /* expression operators for printing */
856 1, /* c-style arrays */
857 0, /* String lower bound */
858 default_word_break_characters
,
859 default_make_symbol_completion_list
,
860 c_language_arch_info
,
861 default_print_array_index
,
862 default_pass_by_reference
,
864 NULL
, /* la_get_symbol_name_cmp */
865 iterate_over_symbols
,
869 enum cplus_primitive_types
{
870 cplus_primitive_type_int
,
871 cplus_primitive_type_long
,
872 cplus_primitive_type_short
,
873 cplus_primitive_type_char
,
874 cplus_primitive_type_float
,
875 cplus_primitive_type_double
,
876 cplus_primitive_type_void
,
877 cplus_primitive_type_long_long
,
878 cplus_primitive_type_signed_char
,
879 cplus_primitive_type_unsigned_char
,
880 cplus_primitive_type_unsigned_short
,
881 cplus_primitive_type_unsigned_int
,
882 cplus_primitive_type_unsigned_long
,
883 cplus_primitive_type_unsigned_long_long
,
884 cplus_primitive_type_long_double
,
885 cplus_primitive_type_complex
,
886 cplus_primitive_type_double_complex
,
887 cplus_primitive_type_bool
,
888 cplus_primitive_type_decfloat
,
889 cplus_primitive_type_decdouble
,
890 cplus_primitive_type_declong
,
891 nr_cplus_primitive_types
895 cplus_language_arch_info (struct gdbarch
*gdbarch
,
896 struct language_arch_info
*lai
)
898 const struct builtin_type
*builtin
= builtin_type (gdbarch
);
900 lai
->string_char_type
= builtin
->builtin_char
;
901 lai
->primitive_type_vector
902 = GDBARCH_OBSTACK_CALLOC (gdbarch
, nr_cplus_primitive_types
+ 1,
904 lai
->primitive_type_vector
[cplus_primitive_type_int
]
905 = builtin
->builtin_int
;
906 lai
->primitive_type_vector
[cplus_primitive_type_long
]
907 = builtin
->builtin_long
;
908 lai
->primitive_type_vector
[cplus_primitive_type_short
]
909 = builtin
->builtin_short
;
910 lai
->primitive_type_vector
[cplus_primitive_type_char
]
911 = builtin
->builtin_char
;
912 lai
->primitive_type_vector
[cplus_primitive_type_float
]
913 = builtin
->builtin_float
;
914 lai
->primitive_type_vector
[cplus_primitive_type_double
]
915 = builtin
->builtin_double
;
916 lai
->primitive_type_vector
[cplus_primitive_type_void
]
917 = builtin
->builtin_void
;
918 lai
->primitive_type_vector
[cplus_primitive_type_long_long
]
919 = builtin
->builtin_long_long
;
920 lai
->primitive_type_vector
[cplus_primitive_type_signed_char
]
921 = builtin
->builtin_signed_char
;
922 lai
->primitive_type_vector
[cplus_primitive_type_unsigned_char
]
923 = builtin
->builtin_unsigned_char
;
924 lai
->primitive_type_vector
[cplus_primitive_type_unsigned_short
]
925 = builtin
->builtin_unsigned_short
;
926 lai
->primitive_type_vector
[cplus_primitive_type_unsigned_int
]
927 = builtin
->builtin_unsigned_int
;
928 lai
->primitive_type_vector
[cplus_primitive_type_unsigned_long
]
929 = builtin
->builtin_unsigned_long
;
930 lai
->primitive_type_vector
[cplus_primitive_type_unsigned_long_long
]
931 = builtin
->builtin_unsigned_long_long
;
932 lai
->primitive_type_vector
[cplus_primitive_type_long_double
]
933 = builtin
->builtin_long_double
;
934 lai
->primitive_type_vector
[cplus_primitive_type_complex
]
935 = builtin
->builtin_complex
;
936 lai
->primitive_type_vector
[cplus_primitive_type_double_complex
]
937 = builtin
->builtin_double_complex
;
938 lai
->primitive_type_vector
[cplus_primitive_type_bool
]
939 = builtin
->builtin_bool
;
940 lai
->primitive_type_vector
[cplus_primitive_type_decfloat
]
941 = builtin
->builtin_decfloat
;
942 lai
->primitive_type_vector
[cplus_primitive_type_decdouble
]
943 = builtin
->builtin_decdouble
;
944 lai
->primitive_type_vector
[cplus_primitive_type_declong
]
945 = builtin
->builtin_declong
;
947 lai
->bool_type_symbol
= "bool";
948 lai
->bool_type_default
= builtin
->builtin_bool
;
951 const struct language_defn cplus_language_defn
=
953 "c++", /* Language name */
963 c_printchar
, /* Print a character constant */
964 c_printstr
, /* Function to print string constant */
965 c_emit_char
, /* Print a single char */
966 c_print_type
, /* Print a type using appropriate syntax */
967 c_print_typedef
, /* Print a typedef using appropriate syntax */
968 c_val_print
, /* Print a value using appropriate syntax */
969 c_value_print
, /* Print a top-level value */
970 default_read_var_value
, /* la_read_var_value */
971 cplus_skip_trampoline
, /* Language specific skip_trampoline */
972 "this", /* name_of_this */
973 cp_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
974 cp_lookup_transparent_type
, /* lookup_transparent_type */
975 cplus_demangle
, /* Language specific symbol demangler */
976 cp_class_name_from_physname
, /* Language specific
977 class_name_from_physname */
978 c_op_print_tab
, /* expression operators for printing */
979 1, /* c-style arrays */
980 0, /* String lower bound */
981 default_word_break_characters
,
982 default_make_symbol_completion_list
,
983 cplus_language_arch_info
,
984 default_print_array_index
,
985 cp_pass_by_reference
,
987 NULL
, /* la_get_symbol_name_cmp */
988 iterate_over_symbols
,
992 const struct language_defn asm_language_defn
=
994 "asm", /* Language name */
1004 c_printchar
, /* Print a character constant */
1005 c_printstr
, /* Function to print string constant */
1006 c_emit_char
, /* Print a single char */
1007 c_print_type
, /* Print a type using appropriate syntax */
1008 c_print_typedef
, /* Print a typedef using appropriate syntax */
1009 c_val_print
, /* Print a value using appropriate syntax */
1010 c_value_print
, /* Print a top-level value */
1011 default_read_var_value
, /* la_read_var_value */
1012 NULL
, /* Language specific skip_trampoline */
1013 NULL
, /* name_of_this */
1014 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
1015 basic_lookup_transparent_type
,/* lookup_transparent_type */
1016 NULL
, /* Language specific symbol demangler */
1017 NULL
, /* Language specific
1018 class_name_from_physname */
1019 c_op_print_tab
, /* expression operators for printing */
1020 1, /* c-style arrays */
1021 0, /* String lower bound */
1022 default_word_break_characters
,
1023 default_make_symbol_completion_list
,
1024 c_language_arch_info
, /* FIXME: la_language_arch_info. */
1025 default_print_array_index
,
1026 default_pass_by_reference
,
1028 NULL
, /* la_get_symbol_name_cmp */
1029 iterate_over_symbols
,
1033 /* The following language_defn does not represent a real language.
1034 It just provides a minimal support a-la-C that should allow users
1035 to do some simple operations when debugging applications that use
1036 a language currently not supported by GDB. */
1038 const struct language_defn minimal_language_defn
=
1040 "minimal", /* Language name */
1050 c_printchar
, /* Print a character constant */
1051 c_printstr
, /* Function to print string constant */
1052 c_emit_char
, /* Print a single char */
1053 c_print_type
, /* Print a type using appropriate syntax */
1054 c_print_typedef
, /* Print a typedef using appropriate syntax */
1055 c_val_print
, /* Print a value using appropriate syntax */
1056 c_value_print
, /* Print a top-level value */
1057 default_read_var_value
, /* la_read_var_value */
1058 NULL
, /* Language specific skip_trampoline */
1059 NULL
, /* name_of_this */
1060 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
1061 basic_lookup_transparent_type
,/* lookup_transparent_type */
1062 NULL
, /* Language specific symbol demangler */
1063 NULL
, /* Language specific
1064 class_name_from_physname */
1065 c_op_print_tab
, /* expression operators for printing */
1066 1, /* c-style arrays */
1067 0, /* String lower bound */
1068 default_word_break_characters
,
1069 default_make_symbol_completion_list
,
1070 c_language_arch_info
,
1071 default_print_array_index
,
1072 default_pass_by_reference
,
1074 NULL
, /* la_get_symbol_name_cmp */
1075 iterate_over_symbols
,
1080 _initialize_c_language (void)
1082 add_language (&c_language_defn
);
1083 add_language (&cplus_language_defn
);
1084 add_language (&asm_language_defn
);
1085 add_language (&minimal_language_defn
);