gdb/c-lang.c

   1 /* C language support routines for GDB, the GNU debugger.
   2
   3    Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2002, 2003,
   4    2004, 2005, 2007, 2008 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   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.
  12
  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.
  17
  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/>.  */
  20
  21 #include "defs.h"
  22 #include "symtab.h"
  23 #include "gdbtypes.h"
  24 #include "expression.h"
  25 #include "parser-defs.h"
  26 #include "language.h"
  27 #include "c-lang.h"
  28 #include "valprint.h"
  29 #include "macroscope.h"
  30 #include "gdb_assert.h"
  31 #include "charset.h"
  32 #include "gdb_string.h"
  33 #include "demangle.h"
  34 #include "cp-abi.h"
  35 #include "cp-support.h"
  36
  37 extern void _initialize_c_language (void);
  38 static void c_emit_char (int c, struct ui_file * stream, int quoter);
  39
  40 /* Print the character C on STREAM as part of the contents of a literal
  41    string whose delimiter is QUOTER.  Note that that format for printing
  42    characters and strings is language specific. */
  43
  44 static void
  45 c_emit_char (int c, struct ui_file *stream, int quoter)
  46 {
  47   const char *escape;
  48   int host_char;
  49
  50   c &= 0xFF;                    /* Avoid sign bit follies */
  51
  52   escape = c_target_char_has_backslash_escape (c);
  53   if (escape)
  54     {
  55       if (quoter == '"' && strcmp (escape, "0") == 0)
  56         /* Print nulls embedded in double quoted strings as \000 to
  57            prevent ambiguity.  */
  58         fprintf_filtered (stream, "\\000");
  59       else
  60         fprintf_filtered (stream, "\\%s", escape);
  61     }
  62   else if (target_char_to_host (c, &host_char)
  63            && host_char_print_literally (host_char))
  64     {
  65       if (host_char == '\\' || host_char == quoter)
  66         fputs_filtered ("\\", stream);
  67       fprintf_filtered (stream, "%c", host_char);
  68     }
  69   else
  70     fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
  71 }
  72
  73 void
  74 c_printchar (int c, struct ui_file *stream)
  75 {
  76   fputc_filtered ('\'', stream);
  77   LA_EMIT_CHAR (c, stream, '\'');
  78   fputc_filtered ('\'', stream);
  79 }
  80
  81 /* Print the character string STRING, printing at most LENGTH characters.
  82    LENGTH is -1 if the string is nul terminated.  Each character is WIDTH bytes
  83    long.  Printing stops early if the number hits print_max; repeat counts are
  84    printed as appropriate.  Print ellipses at the end if we had to stop before
  85    printing LENGTH characters, or if FORCE_ELLIPSES.  */
  86
  87 void
  88 c_printstr (struct ui_file *stream, const gdb_byte *string,
  89             unsigned int length, int width, int force_ellipses)
  90 {
  91   unsigned int i;
  92   unsigned int things_printed = 0;
  93   int in_quotes = 0;
  94   int need_comma = 0;
  95
  96   /* If the string was not truncated due to `set print elements', and
  97      the last byte of it is a null, we don't print that, in traditional C
  98      style.  */
  99   if (!force_ellipses
 100       && length > 0
 101       && (extract_unsigned_integer (string + (length - 1) * width, width)
 102           == '\0'))
 103     length--;
 104
 105   if (length == 0)
 106     {
 107       fputs_filtered ("\"\"", stream);
 108       return;
 109     }
 110
 111   for (i = 0; i < length && things_printed < print_max; ++i)
 112     {
 113       /* Position of the character we are examining
 114          to see whether it is repeated.  */
 115       unsigned int rep1;
 116       /* Number of repetitions we have detected so far.  */
 117       unsigned int reps;
 118       unsigned long current_char;
 119
 120       QUIT;
 121
 122       if (need_comma)
 123         {
 124           fputs_filtered (", ", stream);
 125           need_comma = 0;
 126         }
 127
 128       current_char = extract_unsigned_integer (string + i * width, width);
 129
 130       rep1 = i + 1;
 131       reps = 1;
 132       while (rep1 < length
 133              && extract_unsigned_integer (string + rep1 * width, width)
 134              == current_char)
 135         {
 136           ++rep1;
 137           ++reps;
 138         }
 139
 140       if (reps > repeat_count_threshold)
 141         {
 142           if (in_quotes)
 143             {
 144               if (inspect_it)
 145                 fputs_filtered ("\\\", ", stream);
 146               else
 147                 fputs_filtered ("\", ", stream);
 148               in_quotes = 0;
 149             }
 150           LA_PRINT_CHAR (current_char, stream);
 151           fprintf_filtered (stream, _(" <repeats %u times>"), reps);
 152           i = rep1 - 1;
 153           things_printed += repeat_count_threshold;
 154           need_comma = 1;
 155         }
 156       else
 157         {
 158           if (!in_quotes)
 159             {
 160               if (inspect_it)
 161                 fputs_filtered ("\\\"", stream);
 162               else
 163                 fputs_filtered ("\"", stream);
 164               in_quotes = 1;
 165             }
 166           LA_EMIT_CHAR (current_char, stream, '"');
 167           ++things_printed;
 168         }
 169     }
 170
 171   /* Terminate the quotes if necessary.  */
 172   if (in_quotes)
 173     {
 174       if (inspect_it)
 175         fputs_filtered ("\\\"", stream);
 176       else
 177         fputs_filtered ("\"", stream);
 178     }
 179
 180   if (force_ellipses || i < length)
 181     fputs_filtered ("...", stream);
 182 }
 183 \f
 184 /* Preprocessing and parsing C and C++ expressions.  */
 185
 186
 187 /* When we find that lexptr (the global var defined in parse.c) is
 188    pointing at a macro invocation, we expand the invocation, and call
 189    scan_macro_expansion to save the old lexptr here and point lexptr
 190    into the expanded text.  When we reach the end of that, we call
 191    end_macro_expansion to pop back to the value we saved here.  The
 192    macro expansion code promises to return only fully-expanded text,
 193    so we don't need to "push" more than one level.
 194
 195    This is disgusting, of course.  It would be cleaner to do all macro
 196    expansion beforehand, and then hand that to lexptr.  But we don't
 197    really know where the expression ends.  Remember, in a command like
 198
 199      (gdb) break *ADDRESS if CONDITION
 200
 201    we evaluate ADDRESS in the scope of the current frame, but we
 202    evaluate CONDITION in the scope of the breakpoint's location.  So
 203    it's simply wrong to try to macro-expand the whole thing at once.  */
 204 static char *macro_original_text;
 205 static char *macro_expanded_text;
 206
 207
 208 void
 209 scan_macro_expansion (char *expansion)
 210 {
 211   /* We'd better not be trying to push the stack twice.  */
 212   gdb_assert (! macro_original_text);
 213   gdb_assert (! macro_expanded_text);
 214
 215   /* Save the old lexptr value, so we can return to it when we're done
 216      parsing the expanded text.  */
 217   macro_original_text = lexptr;
 218   lexptr = expansion;
 219
 220   /* Save the expanded text, so we can free it when we're finished.  */
 221   macro_expanded_text = expansion;
 222 }
 223
 224
 225 int
 226 scanning_macro_expansion (void)
 227 {
 228   return macro_original_text != 0;
 229 }
 230
 231
 232 void
 233 finished_macro_expansion (void)
 234 {
 235   /* There'd better be something to pop back to, and we better have
 236      saved a pointer to the start of the expanded text.  */
 237   gdb_assert (macro_original_text);
 238   gdb_assert (macro_expanded_text);
 239
 240   /* Pop back to the original text.  */
 241   lexptr = macro_original_text;
 242   macro_original_text = 0;
 243
 244   /* Free the expanded text.  */
 245   xfree (macro_expanded_text);
 246   macro_expanded_text = 0;
 247 }
 248
 249
 250 static void
 251 scan_macro_cleanup (void *dummy)
 252 {
 253   if (macro_original_text)
 254     finished_macro_expansion ();
 255 }
 256
 257
 258 /* We set these global variables before calling c_parse, to tell it
 259    how it to find macro definitions for the expression at hand.  */
 260 macro_lookup_ftype *expression_macro_lookup_func;
 261 void *expression_macro_lookup_baton;
 262
 263
 264 static int
 265 c_preprocess_and_parse (void)
 266 {
 267   /* Set up a lookup function for the macro expander.  */
 268   struct macro_scope *scope = 0;
 269   struct cleanup *back_to = make_cleanup (free_current_contents, &scope);
 270
 271   if (expression_context_block)
 272     scope = sal_macro_scope (find_pc_line (expression_context_pc, 0));
 273   else
 274     scope = default_macro_scope ();
 275   if (! scope)
 276     scope = user_macro_scope ();
 277
 278   expression_macro_lookup_func = standard_macro_lookup;
 279   expression_macro_lookup_baton = (void *) scope;
 280
 281   gdb_assert (! macro_original_text);
 282   make_cleanup (scan_macro_cleanup, 0);
 283
 284   {
 285     int result = c_parse ();
 286     do_cleanups (back_to);
 287     return result;
 288   }
 289 }
 290
 291
 292 \f
 293 /* Table mapping opcodes into strings for printing operators
 294    and precedences of the operators.  */
 295
 296 const struct op_print c_op_print_tab[] =
 297 {
 298   {",", BINOP_COMMA, PREC_COMMA, 0},
 299   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 300   {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 301   {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 302   {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
 303   {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
 304   {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
 305   {"==", BINOP_EQUAL, PREC_EQUAL, 0},
 306   {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 307   {"<=", BINOP_LEQ, PREC_ORDER, 0},
 308   {">=", BINOP_GEQ, PREC_ORDER, 0},
 309   {">", BINOP_GTR, PREC_ORDER, 0},
 310   {"<", BINOP_LESS, PREC_ORDER, 0},
 311   {">>", BINOP_RSH, PREC_SHIFT, 0},
 312   {"<<", BINOP_LSH, PREC_SHIFT, 0},
 313   {"+", BINOP_ADD, PREC_ADD, 0},
 314   {"-", BINOP_SUB, PREC_ADD, 0},
 315   {"*", BINOP_MUL, PREC_MUL, 0},
 316   {"/", BINOP_DIV, PREC_MUL, 0},
 317   {"%", BINOP_REM, PREC_MUL, 0},
 318   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 319   {"-", UNOP_NEG, PREC_PREFIX, 0},
 320   {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 321   {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
 322   {"*", UNOP_IND, PREC_PREFIX, 0},
 323   {"&", UNOP_ADDR, PREC_PREFIX, 0},
 324   {"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
 325   {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
 326   {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
 327   {NULL, 0, 0, 0}
 328 };
 329 \f
 330 enum c_primitive_types {
 331   c_primitive_type_int,
 332   c_primitive_type_long,
 333   c_primitive_type_short,
 334   c_primitive_type_char,
 335   c_primitive_type_float,
 336   c_primitive_type_double,
 337   c_primitive_type_void,
 338   c_primitive_type_long_long,
 339   c_primitive_type_signed_char,
 340   c_primitive_type_unsigned_char,
 341   c_primitive_type_unsigned_short,
 342   c_primitive_type_unsigned_int,
 343   c_primitive_type_unsigned_long,
 344   c_primitive_type_unsigned_long_long,
 345   c_primitive_type_long_double,
 346   c_primitive_type_complex,
 347   c_primitive_type_double_complex,
 348   c_primitive_type_decfloat,
 349   c_primitive_type_decdouble,
 350   c_primitive_type_declong,
 351   nr_c_primitive_types
 352 };
 353
 354 void
 355 c_language_arch_info (struct gdbarch *gdbarch,
 356                       struct language_arch_info *lai)
 357 {
 358   const struct builtin_type *builtin = builtin_type (gdbarch);
 359   lai->string_char_type = builtin->builtin_char;
 360   lai->primitive_type_vector
 361     = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_c_primitive_types + 1,
 362                               struct type *);
 363   lai->primitive_type_vector [c_primitive_type_int] = builtin->builtin_int;
 364   lai->primitive_type_vector [c_primitive_type_long] = builtin->builtin_long;
 365   lai->primitive_type_vector [c_primitive_type_short] = builtin->builtin_short;
 366   lai->primitive_type_vector [c_primitive_type_char] = builtin->builtin_char;
 367   lai->primitive_type_vector [c_primitive_type_float] = builtin->builtin_float;
 368   lai->primitive_type_vector [c_primitive_type_double] = builtin->builtin_double;
 369   lai->primitive_type_vector [c_primitive_type_void] = builtin->builtin_void;
 370   lai->primitive_type_vector [c_primitive_type_long_long] = builtin->builtin_long_long;
 371   lai->primitive_type_vector [c_primitive_type_signed_char] = builtin->builtin_signed_char;
 372   lai->primitive_type_vector [c_primitive_type_unsigned_char] = builtin->builtin_unsigned_char;
 373   lai->primitive_type_vector [c_primitive_type_unsigned_short] = builtin->builtin_unsigned_short;
 374   lai->primitive_type_vector [c_primitive_type_unsigned_int] = builtin->builtin_unsigned_int;
 375   lai->primitive_type_vector [c_primitive_type_unsigned_long] = builtin->builtin_unsigned_long;
 376   lai->primitive_type_vector [c_primitive_type_unsigned_long_long] = builtin->builtin_unsigned_long_long;
 377   lai->primitive_type_vector [c_primitive_type_long_double] = builtin->builtin_long_double;
 378   lai->primitive_type_vector [c_primitive_type_complex] = builtin->builtin_complex;
 379   lai->primitive_type_vector [c_primitive_type_double_complex] = builtin->builtin_double_complex;
 380   lai->primitive_type_vector [c_primitive_type_decfloat] = builtin->builtin_decfloat;
 381   lai->primitive_type_vector [c_primitive_type_decdouble] = builtin->builtin_decdouble;
 382   lai->primitive_type_vector [c_primitive_type_declong] = builtin->builtin_declong;
 383
 384   lai->bool_type_default = builtin->builtin_int;
 385 }
 386
 387 const struct language_defn c_language_defn =
 388 {
 389   "c",                          /* Language name */
 390   language_c,
 391   range_check_off,
 392   type_check_off,
 393   case_sensitive_on,
 394   array_row_major,
 395   &exp_descriptor_standard,
 396   c_preprocess_and_parse,
 397   c_error,
 398   null_post_parser,
 399   c_printchar,                  /* Print a character constant */
 400   c_printstr,                   /* Function to print string constant */
 401   c_emit_char,                  /* Print a single char */
 402   c_print_type,                 /* Print a type using appropriate syntax */
 403   c_print_typedef,              /* Print a typedef using appropriate syntax */
 404   c_val_print,                  /* Print a value using appropriate syntax */
 405   c_value_print,                /* Print a top-level value */
 406   NULL,                         /* Language specific skip_trampoline */
 407   NULL,                         /* name_of_this */
 408   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 409   basic_lookup_transparent_type,/* lookup_transparent_type */
 410   NULL,                         /* Language specific symbol demangler */
 411   NULL,                         /* Language specific class_name_from_physname */
 412   c_op_print_tab,               /* expression operators for printing */
 413   1,                            /* c-style arrays */
 414   0,                            /* String lower bound */
 415   default_word_break_characters,
 416   default_make_symbol_completion_list,
 417   c_language_arch_info,
 418   default_print_array_index,
 419   default_pass_by_reference,
 420   LANG_MAGIC
 421 };
 422
 423 enum cplus_primitive_types {
 424   cplus_primitive_type_int,
 425   cplus_primitive_type_long,
 426   cplus_primitive_type_short,
 427   cplus_primitive_type_char,
 428   cplus_primitive_type_float,
 429   cplus_primitive_type_double,
 430   cplus_primitive_type_void,
 431   cplus_primitive_type_long_long,
 432   cplus_primitive_type_signed_char,
 433   cplus_primitive_type_unsigned_char,
 434   cplus_primitive_type_unsigned_short,
 435   cplus_primitive_type_unsigned_int,
 436   cplus_primitive_type_unsigned_long,
 437   cplus_primitive_type_unsigned_long_long,
 438   cplus_primitive_type_long_double,
 439   cplus_primitive_type_complex,
 440   cplus_primitive_type_double_complex,
 441   cplus_primitive_type_bool,
 442   cplus_primitive_type_decfloat,
 443   cplus_primitive_type_decdouble,
 444   cplus_primitive_type_declong,
 445   nr_cplus_primitive_types
 446 };
 447
 448 static void
 449 cplus_language_arch_info (struct gdbarch *gdbarch,
 450                           struct language_arch_info *lai)
 451 {
 452   const struct builtin_type *builtin = builtin_type (gdbarch);
 453   lai->string_char_type = builtin->builtin_char;
 454   lai->primitive_type_vector
 455     = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1,
 456                               struct type *);
 457   lai->primitive_type_vector [cplus_primitive_type_int]
 458     = builtin->builtin_int;
 459   lai->primitive_type_vector [cplus_primitive_type_long]
 460     = builtin->builtin_long;
 461   lai->primitive_type_vector [cplus_primitive_type_short]
 462     = builtin->builtin_short;
 463   lai->primitive_type_vector [cplus_primitive_type_char]
 464     = builtin->builtin_char;
 465   lai->primitive_type_vector [cplus_primitive_type_float]
 466     = builtin->builtin_float;
 467   lai->primitive_type_vector [cplus_primitive_type_double]
 468     = builtin->builtin_double;
 469   lai->primitive_type_vector [cplus_primitive_type_void]
 470     = builtin->builtin_void;
 471   lai->primitive_type_vector [cplus_primitive_type_long_long]
 472     = builtin->builtin_long_long;
 473   lai->primitive_type_vector [cplus_primitive_type_signed_char]
 474     = builtin->builtin_signed_char;
 475   lai->primitive_type_vector [cplus_primitive_type_unsigned_char]
 476     = builtin->builtin_unsigned_char;
 477   lai->primitive_type_vector [cplus_primitive_type_unsigned_short]
 478     = builtin->builtin_unsigned_short;
 479   lai->primitive_type_vector [cplus_primitive_type_unsigned_int]
 480     = builtin->builtin_unsigned_int;
 481   lai->primitive_type_vector [cplus_primitive_type_unsigned_long]
 482     = builtin->builtin_unsigned_long;
 483   lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long]
 484     = builtin->builtin_unsigned_long_long;
 485   lai->primitive_type_vector [cplus_primitive_type_long_double]
 486     = builtin->builtin_long_double;
 487   lai->primitive_type_vector [cplus_primitive_type_complex]
 488     = builtin->builtin_complex;
 489   lai->primitive_type_vector [cplus_primitive_type_double_complex]
 490     = builtin->builtin_double_complex;
 491   lai->primitive_type_vector [cplus_primitive_type_bool]
 492     = builtin->builtin_bool;
 493   lai->primitive_type_vector [cplus_primitive_type_decfloat]
 494     = builtin->builtin_decfloat;
 495   lai->primitive_type_vector [cplus_primitive_type_decdouble]
 496     = builtin->builtin_decdouble;
 497   lai->primitive_type_vector [cplus_primitive_type_declong]
 498     = builtin->builtin_declong;
 499
 500   lai->bool_type_symbol = "bool";
 501   lai->bool_type_default = builtin->builtin_bool;
 502 }
 503
 504 const struct language_defn cplus_language_defn =
 505 {
 506   "c++",                        /* Language name */
 507   language_cplus,
 508   range_check_off,
 509   type_check_off,
 510   case_sensitive_on,
 511   array_row_major,
 512   &exp_descriptor_standard,
 513   c_preprocess_and_parse,
 514   c_error,
 515   null_post_parser,
 516   c_printchar,                  /* Print a character constant */
 517   c_printstr,                   /* Function to print string constant */
 518   c_emit_char,                  /* Print a single char */
 519   c_print_type,                 /* Print a type using appropriate syntax */
 520   c_print_typedef,              /* Print a typedef using appropriate syntax */
 521   c_val_print,                  /* Print a value using appropriate syntax */
 522   c_value_print,                /* Print a top-level value */
 523   cplus_skip_trampoline,        /* Language specific skip_trampoline */
 524   "this",                       /* name_of_this */
 525   cp_lookup_symbol_nonlocal,    /* lookup_symbol_nonlocal */
 526   cp_lookup_transparent_type,   /* lookup_transparent_type */
 527   cplus_demangle,               /* Language specific symbol demangler */
 528   cp_class_name_from_physname,  /* Language specific class_name_from_physname */
 529   c_op_print_tab,               /* expression operators for printing */
 530   1,                            /* c-style arrays */
 531   0,                            /* String lower bound */
 532   default_word_break_characters,
 533   default_make_symbol_completion_list,
 534   cplus_language_arch_info,
 535   default_print_array_index,
 536   cp_pass_by_reference,
 537   LANG_MAGIC
 538 };
 539
 540 const struct language_defn asm_language_defn =
 541 {
 542   "asm",                        /* Language name */
 543   language_asm,
 544   range_check_off,
 545   type_check_off,
 546   case_sensitive_on,
 547   array_row_major,
 548   &exp_descriptor_standard,
 549   c_preprocess_and_parse,
 550   c_error,
 551   null_post_parser,
 552   c_printchar,                  /* Print a character constant */
 553   c_printstr,                   /* Function to print string constant */
 554   c_emit_char,                  /* Print a single char */
 555   c_print_type,                 /* Print a type using appropriate syntax */
 556   c_print_typedef,              /* Print a typedef using appropriate syntax */
 557   c_val_print,                  /* Print a value using appropriate syntax */
 558   c_value_print,                /* Print a top-level value */
 559   NULL,                         /* Language specific skip_trampoline */
 560   NULL,                         /* name_of_this */
 561   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 562   basic_lookup_transparent_type,/* lookup_transparent_type */
 563   NULL,                         /* Language specific symbol demangler */
 564   NULL,                         /* Language specific class_name_from_physname */
 565   c_op_print_tab,               /* expression operators for printing */
 566   1,                            /* c-style arrays */
 567   0,                            /* String lower bound */
 568   default_word_break_characters,
 569   default_make_symbol_completion_list,
 570   c_language_arch_info, /* FIXME: la_language_arch_info.  */
 571   default_print_array_index,
 572   default_pass_by_reference,
 573   LANG_MAGIC
 574 };
 575
 576 /* The following language_defn does not represent a real language.
 577    It just provides a minimal support a-la-C that should allow users
 578    to do some simple operations when debugging applications that use
 579    a language currently not supported by GDB.  */
 580
 581 const struct language_defn minimal_language_defn =
 582 {
 583   "minimal",                    /* Language name */
 584   language_minimal,
 585   range_check_off,
 586   type_check_off,
 587   case_sensitive_on,
 588   array_row_major,
 589   &exp_descriptor_standard,
 590   c_preprocess_and_parse,
 591   c_error,
 592   null_post_parser,
 593   c_printchar,                  /* Print a character constant */
 594   c_printstr,                   /* Function to print string constant */
 595   c_emit_char,                  /* Print a single char */
 596   c_print_type,                 /* Print a type using appropriate syntax */
 597   c_print_typedef,              /* Print a typedef using appropriate syntax */
 598   c_val_print,                  /* Print a value using appropriate syntax */
 599   c_value_print,                /* Print a top-level value */
 600   NULL,                         /* Language specific skip_trampoline */
 601   NULL,                         /* name_of_this */
 602   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 603   basic_lookup_transparent_type,/* lookup_transparent_type */
 604   NULL,                         /* Language specific symbol demangler */
 605   NULL,                         /* Language specific class_name_from_physname */
 606   c_op_print_tab,               /* expression operators for printing */
 607   1,                            /* c-style arrays */
 608   0,                            /* String lower bound */
 609   default_word_break_characters,
 610   default_make_symbol_completion_list,
 611   c_language_arch_info,
 612   default_print_array_index,
 613   default_pass_by_reference,
 614   LANG_MAGIC
 615 };
 616
 617 void
 618 _initialize_c_language (void)
 619 {
 620   add_language (&c_language_defn);
 621   add_language (&cplus_language_defn);
 622   add_language (&asm_language_defn);
 623   add_language (&minimal_language_defn);
 624 }