gdb/valprint.c - gdb

Global variables defined

Data types defined

Functions defined

Macros defined

Source code

  1. /* Print values for GDB, the GNU debugger.

  3.    Copyright (C) 1986-2015 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/>.  */

  20. #include "defs.h"
  21. #include "symtab.h"
  22. #include "gdbtypes.h"
  23. #include "value.h"
  24. #include "gdbcore.h"
  25. #include "gdbcmd.h"
  26. #include "target.h"
  27. #include "language.h"
  28. #include "annotate.h"
  29. #include "valprint.h"
  30. #include "floatformat.h"
  31. #include "doublest.h"
  32. #include "dfp.h"
  33. #include "extension.h"
  34. #include "ada-lang.h"
  35. #include "gdb_obstack.h"
  36. #include "charset.h"
  37. #include <ctype.h>

  39. /* Maximum number of wchars returned from wchar_iterate.  */
  40. ‌#define MAX_WCHARS 4

  42. /* A convenience macro to compute the size of a wchar_t buffer containing X
  43.    characters.  */
  44. ‌#define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t))

  46. /* Character buffer size saved while iterating over wchars.  */
  47. ‌#define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS)

  49. /* A structure to encapsulate state information from iterated
  50.    character conversions.  */
  51. ‌struct converted_character
  52. {
  53.   /* The number of characters converted.  */
  54.   int num_chars;

  56.   /* The result of the conversion.  See charset.h for more.  */
  57.   enum wchar_iterate_result result;

  59.   /* The (saved) converted character(s).  */
  60.   gdb_wchar_t chars[WCHAR_BUFLEN_MAX];

  62.   /* The first converted target byte.  */
  63.   const gdb_byte *buf;

  65.   /* The number of bytes converted.  */
  66.   size_t buflen;

  68.   /* How many times this character(s) is repeated.  */
  69.   int repeat_count;
  70. };

  72. ‌typedef struct converted_character converted_character_d;
  73. ‌DEF_VEC_O (converted_character_d);

  75. /* Command lists for set/show print raw.  */
  76. ‌struct cmd_list_element *setprintrawlist;
  77. ‌struct cmd_list_element *showprintrawlist;

  79. /* Prototypes for local functions */

  81. static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
  82.                                 int len, int *errptr);

  84. static void show_print (char *, int);

  86. static void set_print (char *, int);

  88. static void set_radix (char *, int);

  90. static void show_radix (char *, int);

  92. static void set_input_radix (char *, int, struct cmd_list_element *);

  94. static void set_input_radix_1 (int, unsigned);

  96. static void set_output_radix (char *, int, struct cmd_list_element *);

  98. static void set_output_radix_1 (int, unsigned);

  100. void _initialize_valprint (void);

  102. ‌#define PRINT_MAX_DEFAULT 200        /* Start print_max off at this value.  */

  104. ‌struct value_print_options user_print_options =
  105. {
  106.   Val_prettyformat_default,        /* prettyformat */
  107.   0,                                /* prettyformat_arrays */
  108.   0,                                /* prettyformat_structs */
  109.   0,                                /* vtblprint */
  110.   1,                                /* unionprint */
  111.   1,                                /* addressprint */
  112.   0,                                /* objectprint */
  113.   PRINT_MAX_DEFAULT,                /* print_max */
  114.   10,                                /* repeat_count_threshold */
  115.   0,                                /* output_format */
  116.   0,                                /* format */
  117.   0,                                /* stop_print_at_null */
  118.   0,                                /* print_array_indexes */
  119.   0,                                /* deref_ref */
  120.   1,                                /* static_field_print */
  121.   1,                                /* pascal_static_field_print */
  122.   0,                                /* raw */
  123.   0,                                /* summary */
  124.   1                                /* symbol_print */
  125. };

  127. /* Initialize *OPTS to be a copy of the user print options.  */
  128. void
  129. ‌get_user_print_options (struct value_print_options *opts)
  130. {
  131.   *opts = user_print_options;
  132. }

  134. /* Initialize *OPTS to be a copy of the user print options, but with
  135.    pretty-formatting disabled.  */
  136. void
  137. ‌get_no_prettyformat_print_options (struct value_print_options *opts)
  138. {
  139.   *opts = user_print_options;
  140.   opts->prettyformat = Val_no_prettyformat;
  141. }

  143. /* Initialize *OPTS to be a copy of the user print options, but using
  144.    FORMAT as the formatting option.  */
  145. void
  146. ‌get_formatted_print_options (struct value_print_options *opts,
  147.                              char format)
  148. {
  149.   *opts = user_print_options;
  150.   opts->format = format;
  151. }

  153. static void
  154. ‌show_print_max (struct ui_file *file, int from_tty,
  155.                 struct cmd_list_element *c, const char *value)
  156. {
  157.   fprintf_filtered (file,
  158.                     _("Limit on string chars or array "
  159.                       "elements to print is %s.\n"),
  160.                     value);
  161. }


  164. /* Default input and output radixes, and output format letter.  */

  166. ‌unsigned input_radix = 10;
  167. static void
  168. ‌show_input_radix (struct ui_file *file, int from_tty,
  169.                   struct cmd_list_element *c, const char *value)
  170. {
  171.   fprintf_filtered (file,
  172.                     _("Default input radix for entering numbers is %s.\n"),
  173.                     value);
  174. }

  176. ‌unsigned output_radix = 10;
  177. static void
  178. ‌show_output_radix (struct ui_file *file, int from_tty,
  179.                    struct cmd_list_element *c, const char *value)
  180. {
  181.   fprintf_filtered (file,
  182.                     _("Default output radix for printing of values is %s.\n"),
  183.                     value);
  184. }

  186. /* By default we print arrays without printing the index of each element in
  187.    the array.  This behavior can be changed by setting PRINT_ARRAY_INDEXES.  */

  189. static void
  190. ‌show_print_array_indexes (struct ui_file *file, int from_tty,
  191.                           struct cmd_list_element *c, const char *value)
  192. {
  193.   fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value);
  194. }

  196. /* Print repeat counts if there are more than this many repetitions of an
  197.    element in an array.  Referenced by the low level language dependent
  198.    print routines.  */

  200. static void
  201. ‌show_repeat_count_threshold (struct ui_file *file, int from_tty,
  202.                              struct cmd_list_element *c, const char *value)
  203. {
  204.   fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"),
  205.                     value);
  206. }

  208. /* If nonzero, stops printing of char arrays at first null.  */

  210. static void
  211. ‌show_stop_print_at_null (struct ui_file *file, int from_tty,
  212.                          struct cmd_list_element *c, const char *value)
  213. {
  214.   fprintf_filtered (file,
  215.                     _("Printing of char arrays to stop "
  216.                       "at first null char is %s.\n"),
  217.                     value);
  218. }

  220. /* Controls pretty printing of structures.  */

  222. static void
  223. ‌show_prettyformat_structs (struct ui_file *file, int from_tty,
  224.                           struct cmd_list_element *c, const char *value)
  225. {
  226.   fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value);
  227. }

  229. /* Controls pretty printing of arrays.  */

  231. static void
  232. ‌show_prettyformat_arrays (struct ui_file *file, int from_tty,
  233.                          struct cmd_list_element *c, const char *value)
  234. {
  235.   fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value);
  236. }

  238. /* If nonzero, causes unions inside structures or other unions to be
  239.    printed.  */

  241. static void
  242. ‌show_unionprint (struct ui_file *file, int from_tty,
  243.                  struct cmd_list_element *c, const char *value)
  244. {
  245.   fprintf_filtered (file,
  246.                     _("Printing of unions interior to structures is %s.\n"),
  247.                     value);
  248. }

  250. /* If nonzero, causes machine addresses to be printed in certain contexts.  */

  252. static void
  253. ‌show_addressprint (struct ui_file *file, int from_tty,
  254.                    struct cmd_list_element *c, const char *value)
  255. {
  256.   fprintf_filtered (file, _("Printing of addresses is %s.\n"), value);
  257. }

  259. static void
  260. ‌show_symbol_print (struct ui_file *file, int from_tty,
  261.                    struct cmd_list_element *c, const char *value)
  262. {
  263.   fprintf_filtered (file,
  264.                     _("Printing of symbols when printing pointers is %s.\n"),
  265.                     value);
  266. }



  270. /* A helper function for val_print.  When printing in "summary" mode,
  271.    we want to print scalar arguments, but not aggregate arguments.
  272.    This function distinguishes between the two.  */

  274. int
  275. ‌val_print_scalar_type_p (struct type *type)
  276. {
  277.   CHECK_TYPEDEF (type);
  278.   while (TYPE_CODE (type) == TYPE_CODE_REF)
  279.     {
  280.       type = TYPE_TARGET_TYPE (type);
  281.       CHECK_TYPEDEF (type);
  282.     }
  283.   switch (TYPE_CODE (type))
  284.     {
  285.     case TYPE_CODE_ARRAY:
  286.     case TYPE_CODE_STRUCT:
  287.     case TYPE_CODE_UNION:
  288.     case TYPE_CODE_SET:
  289.     case TYPE_CODE_STRING:
  290.       return 0;
  291.     default:
  292.       return 1;
  293.     }
  294. }

  296. /* See its definition in value.h.  */

  298. int
  299. ‌valprint_check_validity (struct ui_file *stream,
  300.                          struct type *type,
  301.                          int embedded_offset,
  302.                          const struct value *val)
  303. {
  304.   CHECK_TYPEDEF (type);

  306.   if (TYPE_CODE (type) != TYPE_CODE_UNION
  307.       && TYPE_CODE (type) != TYPE_CODE_STRUCT
  308.       && TYPE_CODE (type) != TYPE_CODE_ARRAY)
  309.     {
  310.       if (value_bits_any_optimized_out (val,
  311.                                         TARGET_CHAR_BIT * embedded_offset,
  312.                                         TARGET_CHAR_BIT * TYPE_LENGTH (type)))
  313.         {
  314.           val_print_optimized_out (val, stream);
  315.           return 0;
  316.         }

  318.       if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset,
  319.                                         TARGET_CHAR_BIT * TYPE_LENGTH (type)))
  320.         {
  321.           fputs_filtered (_("<synthetic pointer>"), stream);
  322.           return 0;
  323.         }

  325.       if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
  326.         {
  327.           val_print_unavailable (stream);
  328.           return 0;
  329.         }
  330.     }

  332.   return 1;
  333. }

  335. void
  336. ‌val_print_optimized_out (const struct value *val, struct ui_file *stream)
  337. {
  338.   if (val != NULL && value_lval_const (val) == lval_register)
  339.     val_print_not_saved (stream);
  340.   else
  341.     fprintf_filtered (stream, _("<optimized out>"));
  342. }

  344. void
  345. ‌val_print_not_saved (struct ui_file *stream)
  346. {
  347.   fprintf_filtered (stream, _("<not saved>"));
  348. }

  350. void
  351. ‌val_print_unavailable (struct ui_file *stream)
  352. {
  353.   fprintf_filtered (stream, _("<unavailable>"));
  354. }

  356. void
  357. ‌val_print_invalid_address (struct ui_file *stream)
  358. {
  359.   fprintf_filtered (stream, _("<invalid address>"));
  360. }

  362. /* A generic val_print that is suitable for use by language
  363.    implementations of the la_val_print method.  This function can
  364.    handle most type codes, though not all, notably exception
  365.    TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
  366.    the caller.

  368.    Most arguments are as to val_print.

  370.    The additional DECORATIONS argument can be used to customize the
  371.    output in some small, language-specific ways.  */

  373. void
  374. ‌generic_val_print (struct type *type, const gdb_byte *valaddr,
  375.                    int embedded_offset, CORE_ADDR address,
  376.                    struct ui_file *stream, int recurse,
  377.                    const struct value *original_value,
  378.                    const struct value_print_options *options,
  379.                    const struct generic_val_print_decorations *decorations)
  380. {
  381.   struct gdbarch *gdbarch = get_type_arch (type);
  382.   unsigned int i = 0;        /* Number of characters printed.  */
  383.   unsigned len;
  384.   struct type *elttype, *unresolved_elttype;
  385.   struct type *unresolved_type = type;
  386.   LONGEST val;
  387.   CORE_ADDR addr;

  389.   CHECK_TYPEDEF (type);
  390.   switch (TYPE_CODE (type))
  391.     {
  392.     case TYPE_CODE_ARRAY:
  393.       unresolved_elttype = TYPE_TARGET_TYPE (type);
  394.       elttype = check_typedef (unresolved_elttype);
  395.       if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
  396.         {
  397.           LONGEST low_bound, high_bound;

  399.           if (!get_array_bounds (type, &low_bound, &high_bound))
  400.             error (_("Could not determine the array high bound"));

  402.           if (options->prettyformat_arrays)
  403.             {
  404.               print_spaces_filtered (2 + 2 * recurse, stream);
  405.             }

  407.           fprintf_filtered (stream, "{");
  408.           val_print_array_elements (type, valaddr, embedded_offset,
  409.                                     address, stream,
  410.                                     recurse, original_value, options, 0);
  411.           fprintf_filtered (stream, "}");
  412.           break;
  413.         }
  414.       /* Array of unspecified length: treat like pointer to first
  415.          elt.  */
  416.       addr = address + embedded_offset;
  417.       goto print_unpacked_pointer;

  419.     case TYPE_CODE_MEMBERPTR:
  420.       val_print_scalar_formatted (type, valaddr, embedded_offset,
  421.                                   original_value, options, 0, stream);
  422.       break;

  424.     case TYPE_CODE_PTR:
  425.       if (options->format && options->format != 's')
  426.         {
  427.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  428.                                       original_value, options, 0, stream);
  429.           break;
  430.         }
  431.       unresolved_elttype = TYPE_TARGET_TYPE (type);
  432.       elttype = check_typedef (unresolved_elttype);
  433.         {
  434.           addr = unpack_pointer (type, valaddr + embedded_offset);
  435.         print_unpacked_pointer:

  437.           if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
  438.             {
  439.               /* Try to print what function it points to.  */
  440.               print_function_pointer_address (options, gdbarch, addr, stream);
  441.               return;
  442.             }

  444.           if (options->symbol_print)
  445.             print_address_demangle (options, gdbarch, addr, stream, demangle);
  446.           else if (options->addressprint)
  447.             fputs_filtered (paddress (gdbarch, addr), stream);
  448.         }
  449.       break;

  451.     case TYPE_CODE_REF:
  452.       elttype = check_typedef (TYPE_TARGET_TYPE (type));
  453.       if (options->addressprint)
  454.         {
  455.           CORE_ADDR addr
  456.             = extract_typed_address (valaddr + embedded_offset, type);

  458.           fprintf_filtered (stream, "@");
  459.           fputs_filtered (paddress (gdbarch, addr), stream);
  460.           if (options->deref_ref)
  461.             fputs_filtered (": ", stream);
  462.         }
  463.       /* De-reference the reference.  */
  464.       if (options->deref_ref)
  465.         {
  466.           if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
  467.             {
  468.               struct value *deref_val;

  470.               deref_val = coerce_ref_if_computed (original_value);
  471.               if (deref_val != NULL)
  472.                 {
  473.                   /* More complicated computed references are not supported.  */
  474.                   gdb_assert (embedded_offset == 0);
  475.                 }
  476.               else
  477.                 deref_val = value_at (TYPE_TARGET_TYPE (type),
  478.                                       unpack_pointer (type,
  479.                                                       (valaddr
  480.                                                        + embedded_offset)));

  482.               common_val_print (deref_val, stream, recurse, options,
  483.                                 current_language);
  484.             }
  485.           else
  486.             fputs_filtered ("???", stream);
  487.         }
  488.       break;

  490.     case TYPE_CODE_ENUM:
  491.       if (options->format)
  492.         {
  493.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  494.                                       original_value, options, 0, stream);
  495.           break;
  496.         }
  497.       len = TYPE_NFIELDS (type);
  498.       val = unpack_long (type, valaddr + embedded_offset);
  499.       for (i = 0; i < len; i++)
  500.         {
  501.           QUIT;
  502.           if (val == TYPE_FIELD_ENUMVAL (type, i))
  503.             {
  504.               break;
  505.             }
  506.         }
  507.       if (i < len)
  508.         {
  509.           fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
  510.         }
  511.       else if (TYPE_FLAG_ENUM (type))
  512.         {
  513.           int first = 1;

  515.           /* We have a "flag" enum, so we try to decompose it into
  516.              pieces as appropriate.  A flag enum has disjoint
  517.              constants by definition.  */
  518.           fputs_filtered ("(", stream);
  519.           for (i = 0; i < len; ++i)
  520.             {
  521.               QUIT;

  523.               if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0)
  524.                 {
  525.                   if (!first)
  526.                     fputs_filtered (" | ", stream);
  527.                   first = 0;

  529.                   val &= ~TYPE_FIELD_ENUMVAL (type, i);
  530.                   fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
  531.                 }
  532.             }

  534.           if (first || val != 0)
  535.             {
  536.               if (!first)
  537.                 fputs_filtered (" | ", stream);
  538.               fputs_filtered ("unknown: ", stream);
  539.               print_longest (stream, 'd', 0, val);
  540.             }

  542.           fputs_filtered (")", stream);
  543.         }
  544.       else
  545.         print_longest (stream, 'd', 0, val);
  546.       break;

  548.     case TYPE_CODE_FLAGS:
  549.       if (options->format)
  550.         val_print_scalar_formatted (type, valaddr, embedded_offset,
  551.                                     original_value, options, 0, stream);
  552.       else
  553.         val_print_type_code_flags (type, valaddr + embedded_offset,
  554.                                    stream);
  555.       break;

  557.     case TYPE_CODE_FUNC:
  558.     case TYPE_CODE_METHOD:
  559.       if (options->format)
  560.         {
  561.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  562.                                       original_value, options, 0, stream);
  563.           break;
  564.         }
  565.       /* FIXME, we should consider, at least for ANSI C language,
  566.          eliminating the distinction made between FUNCs and POINTERs
  567.          to FUNCs.  */
  568.       fprintf_filtered (stream, "{");
  569.       type_print (type, "", stream, -1);
  570.       fprintf_filtered (stream, "} ");
  571.       /* Try to print what function it points to, and its address.  */
  572.       print_address_demangle (options, gdbarch, address, stream, demangle);
  573.       break;

  575.     case TYPE_CODE_BOOL:
  576.       if (options->format || options->output_format)
  577.         {
  578.           struct value_print_options opts = *options;
  579.           opts.format = (options->format ? options->format
  580.                          : options->output_format);
  581.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  582.                                       original_value, &opts, 0, stream);
  583.         }
  584.       else
  585.         {
  586.           val = unpack_long (type, valaddr + embedded_offset);
  587.           if (val == 0)
  588.             fputs_filtered (decorations->false_name, stream);
  589.           else if (val == 1)
  590.             fputs_filtered (decorations->true_name, stream);
  591.           else
  592.             print_longest (stream, 'd', 0, val);
  593.         }
  594.       break;

  596.     case TYPE_CODE_RANGE:
  597.       /* FIXME: create_static_range_type does not set the unsigned bit in a
  598.          range type (I think it probably should copy it from the
  599.          target type), so we won't print values which are too large to
  600.          fit in a signed integer correctly.  */
  601.       /* FIXME: Doesn't handle ranges of enums correctly.  (Can't just
  602.          print with the target type, though, because the size of our
  603.          type and the target type might differ).  */

  605.       /* FALLTHROUGH */

  607.     case TYPE_CODE_INT:
  608.       if (options->format || options->output_format)
  609.         {
  610.           struct value_print_options opts = *options;

  612.           opts.format = (options->format ? options->format
  613.                          : options->output_format);
  614.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  615.                                       original_value, &opts, 0, stream);
  616.         }
  617.       else
  618.         val_print_type_code_int (type, valaddr + embedded_offset, stream);
  619.       break;

  621.     case TYPE_CODE_CHAR:
  622.       if (options->format || options->output_format)
  623.         {
  624.           struct value_print_options opts = *options;

  626.           opts.format = (options->format ? options->format
  627.                          : options->output_format);
  628.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  629.                                       original_value, &opts, 0, stream);
  630.         }
  631.       else
  632.         {
  633.           val = unpack_long (type, valaddr + embedded_offset);
  634.           if (TYPE_UNSIGNED (type))
  635.             fprintf_filtered (stream, "%u", (unsigned int) val);
  636.           else
  637.             fprintf_filtered (stream, "%d", (int) val);
  638.           fputs_filtered (" ", stream);
  639.           LA_PRINT_CHAR (val, unresolved_type, stream);
  640.         }
  641.       break;

  643.     case TYPE_CODE_FLT:
  644.       if (options->format)
  645.         {
  646.           val_print_scalar_formatted (type, valaddr, embedded_offset,
  647.                                       original_value, options, 0, stream);
  648.         }
  649.       else
  650.         {
  651.           print_floating (valaddr + embedded_offset, type, stream);
  652.         }
  653.       break;

  655.     case TYPE_CODE_DECFLOAT:
  656.       if (options->format)
  657.         val_print_scalar_formatted (type, valaddr, embedded_offset,
  658.                                     original_value, options, 0, stream);
  659.       else
  660.         print_decimal_floating (valaddr + embedded_offset,
  661.                                 type, stream);
  662.       break;

  664.     case TYPE_CODE_VOID:
  665.       fputs_filtered (decorations->void_name, stream);
  666.       break;

  668.     case TYPE_CODE_ERROR:
  669.       fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
  670.       break;

  672.     case TYPE_CODE_UNDEF:
  673.       /* This happens (without TYPE_FLAG_STUB set) on systems which
  674.          don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
  675.          "struct foo *bar" and no complete type for struct foo in that
  676.          file.  */
  677.       fprintf_filtered (stream, _("<incomplete type>"));
  678.       break;

  680.     case TYPE_CODE_COMPLEX:
  681.       fprintf_filtered (stream, "%s", decorations->complex_prefix);
  682.       if (options->format)
  683.         val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
  684.                                     valaddr, embedded_offset,
  685.                                     original_value, options, 0, stream);
  686.       else
  687.         print_floating (valaddr + embedded_offset,
  688.                         TYPE_TARGET_TYPE (type),
  689.                         stream);
  690.       fprintf_filtered (stream, "%s", decorations->complex_infix);
  691.       if (options->format)
  692.         val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
  693.                                     valaddr,
  694.                                     embedded_offset
  695.                                     + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
  696.                                     original_value,
  697.                                     options, 0, stream);
  698.       else
  699.         print_floating (valaddr + embedded_offset
  700.                         + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
  701.                         TYPE_TARGET_TYPE (type),
  702.                         stream);
  703.       fprintf_filtered (stream, "%s", decorations->complex_suffix);
  704.       break;

  706.     case TYPE_CODE_UNION:
  707.     case TYPE_CODE_STRUCT:
  708.     case TYPE_CODE_METHODPTR:
  709.     default:
  710.       error (_("Unhandled type code %d in symbol table."),
  711.              TYPE_CODE (type));
  712.     }
  713.   gdb_flush (stream);
  714. }

  716. /* Print using the given LANGUAGE the data of type TYPE located at
  717.    VALADDR + EMBEDDED_OFFSET (within GDB), which came from the
  718.    inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream
  719.    STREAM according to OPTIONS.  VAL is the whole object that came
  720.    from ADDRESS.  VALADDR must point to the head of VAL's contents
  721.    buffer.

  723.    The language printers will pass down an adjusted EMBEDDED_OFFSET to
  724.    further helper subroutines as subfields of TYPE are printed.  In
  725.    such cases, VALADDR is passed down unadjusted, as well as VAL, so
  726.    that VAL can be queried for metadata about the contents data being
  727.    printed, using EMBEDDED_OFFSET as an offset into VAL's contents
  728.    buffer.  For example: "has this field been optimized out", or "I'm
  729.    printing an object while inspecting a traceframe; has this
  730.    particular piece of data been collected?".

  732.    RECURSE indicates the amount of indentation to supply before
  733.    continuation lines; this amount is roughly twice the value of
  734.    RECURSE.  */

  736. void
  737. ‌val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
  738.            CORE_ADDR address, struct ui_file *stream, int recurse,
  739.            const struct value *val,
  740.            const struct value_print_options *options,
  741.            const struct language_defn *language)
  742. {
  743.   volatile struct gdb_exception except;
  744.   int ret = 0;
  745.   struct value_print_options local_opts = *options;
  746.   struct type *real_type = check_typedef (type);

  748.   if (local_opts.prettyformat == Val_prettyformat_default)
  749.     local_opts.prettyformat = (local_opts.prettyformat_structs
  750.                                ? Val_prettyformat : Val_no_prettyformat);

  752.   QUIT;

  754.   /* Ensure that the type is complete and not just a stub.  If the type is
  755.      only a stub and we can't find and substitute its complete type, then
  756.      print appropriate string and return.  */

  758.   if (TYPE_STUB (real_type))
  759.     {
  760.       fprintf_filtered (stream, _("<incomplete type>"));
  761.       gdb_flush (stream);
  762.       return;
  763.     }

  765.   if (!valprint_check_validity (stream, real_type, embedded_offset, val))
  766.     return;

  768.   if (!options->raw)
  769.     {
  770.       ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
  771.                                                address, stream, recurse,
  772.                                                val, options, language);
  773.       if (ret)
  774.         return;
  775.     }

  777.   /* Handle summary mode.  If the value is a scalar, print it;
  778.      otherwise, print an ellipsis.  */
  779.   if (options->summary && !val_print_scalar_type_p (type))
  780.     {
  781.       fprintf_filtered (stream, "...");
  782.       return;
  783.     }

  785.   TRY_CATCH (except, RETURN_MASK_ERROR)
  786.     {
  787.       language->la_val_print (type, valaddr, embedded_offset, address,
  788.                               stream, recurse, val,
  789.                               &local_opts);
  790.     }
  791.   if (except.reason < 0)
  792.     fprintf_filtered (stream, _("<error reading variable>"));
  793. }

  795. /* Check whether the value VAL is printable.  Return 1 if it is;
  796.    return 0 and print an appropriate error message to STREAM according to
  797.    OPTIONS if it is not.  */

  799. static int
  800. ‌value_check_printable (struct value *val, struct ui_file *stream,
  801.                        const struct value_print_options *options)
  802. {
  803.   if (val == 0)
  804.     {
  805.       fprintf_filtered (stream, _("<address of value unknown>"));
  806.       return 0;
  807.     }

  809.   if (value_entirely_optimized_out (val))
  810.     {
  811.       if (options->summary && !val_print_scalar_type_p (value_type (val)))
  812.         fprintf_filtered (stream, "...");
  813.       else
  814.         val_print_optimized_out (val, stream);
  815.       return 0;
  816.     }

  818.   if (value_entirely_unavailable (val))
  819.     {
  820.       if (options->summary && !val_print_scalar_type_p (value_type (val)))
  821.         fprintf_filtered (stream, "...");
  822.       else
  823.         val_print_unavailable (stream);
  824.       return 0;
  825.     }

  827.   if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
  828.     {
  829.       fprintf_filtered (stream, _("<internal function %s>"),
  830.                         value_internal_function_name (val));
  831.       return 0;
  832.     }

  834.   return 1;
  835. }

  837. /* Print using the given LANGUAGE the value VAL onto stream STREAM according
  838.    to OPTIONS.

  840.    This is a preferable interface to val_print, above, because it uses
  841.    GDB's value mechanism.  */

  843. void
  844. ‌common_val_print (struct value *val, struct ui_file *stream, int recurse,
  845.                   const struct value_print_options *options,
  846.                   const struct language_defn *language)
  847. {
  848.   if (!value_check_printable (val, stream, options))
  849.     return;

  851.   if (language->la_language == language_ada)
  852.     /* The value might have a dynamic type, which would cause trouble
  853.        below when trying to extract the value contents (since the value
  854.        size is determined from the type size which is unknown).  So
  855.        get a fixed representation of our value.  */
  856.     val = ada_to_fixed_value (val);

  858.   val_print (value_type (val), value_contents_for_printing (val),
  859.              value_embedded_offset (val), value_address (val),
  860.              stream, recurse,
  861.              val, options, language);
  862. }

  864. /* Print on stream STREAM the value VAL according to OPTIONS.  The value
  865.    is printed using the current_language syntax.  */

  867. void
  868. ‌value_print (struct value *val, struct ui_file *stream,
  869.              const struct value_print_options *options)
  870. {
  871.   if (!value_check_printable (val, stream, options))
  872.     return;

  874.   if (!options->raw)
  875.     {
  876.       int r
  877.         = apply_ext_lang_val_pretty_printer (value_type (val),
  878.                                              value_contents_for_printing (val),
  879.                                              value_embedded_offset (val),
  880.                                              value_address (val),
  881.                                              stream, 0,
  882.                                              val, options, current_language);

  884.       if (r)
  885.         return;
  886.     }

  888.   LA_VALUE_PRINT (val, stream, options);
  889. }

  891. /* Called by various <lang>_val_print routines to print
  892.    TYPE_CODE_INT's.  TYPE is the type.  VALADDR is the address of the
  893.    value.  STREAM is where to print the value.  */

  895. void
  896. ‌val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
  897.                          struct ui_file *stream)
  898. {
  899.   enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));

  901.   if (TYPE_LENGTH (type) > sizeof (LONGEST))
  902.     {
  903.       LONGEST val;

  905.       if (TYPE_UNSIGNED (type)
  906.           && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
  907.                                             byte_order, &val))
  908.         {
  909.           print_longest (stream, 'u', 0, val);
  910.         }
  911.       else
  912.         {
  913.           /* Signed, or we couldn't turn an unsigned value into a
  914.              LONGEST.  For signed values, one could assume two's
  915.              complement (a reasonable assumption, I think) and do
  916.              better than this.  */
  917.           print_hex_chars (stream, (unsigned char *) valaddr,
  918.                            TYPE_LENGTH (type), byte_order);
  919.         }
  920.     }
  921.   else
  922.     {
  923.       print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
  924.                      unpack_long (type, valaddr));
  925.     }
  926. }

  928. void
  929. ‌val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
  930.                            struct ui_file *stream)
  931. {
  932.   ULONGEST val = unpack_long (type, valaddr);
  933.   int bitpos, nfields = TYPE_NFIELDS (type);

  935.   fputs_filtered ("[ ", stream);
  936.   for (bitpos = 0; bitpos < nfields; bitpos++)
  937.     {
  938.       if (TYPE_FIELD_BITPOS (type, bitpos) != -1
  939.           && (val & ((ULONGEST)1 << bitpos)))
  940.         {
  941.           if (TYPE_FIELD_NAME (type, bitpos))
  942.             fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
  943.           else
  944.             fprintf_filtered (stream, "#%d ", bitpos);
  945.         }
  946.     }
  947.   fputs_filtered ("]", stream);
  948. }

  950. /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
  951.    according to OPTIONS and SIZE on STREAM.  Format i is not supported
  952.    at this level.

  954.    This is how the elements of an array or structure are printed
  955.    with a format.  */

  957. void
  958. ‌val_print_scalar_formatted (struct type *type,
  959.                             const gdb_byte *valaddr, int embedded_offset,
  960.                             const struct value *val,
  961.                             const struct value_print_options *options,
  962.                             int size,
  963.                             struct ui_file *stream)
  964. {
  965.   gdb_assert (val != NULL);
  966.   gdb_assert (valaddr == value_contents_for_printing_const (val));

  968.   /* If we get here with a string format, try again without it.  Go
  969.      all the way back to the language printers, which may call us
  970.      again.  */
  971.   if (options->format == 's')
  972.     {
  973.       struct value_print_options opts = *options;
  974.       opts.format = 0;
  975.       opts.deref_ref = 0;
  976.       val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
  977.                  current_language);
  978.       return;
  979.     }

  981.   /* A scalar object that does not have all bits available can't be
  982.      printed, because all bits contribute to its representation.  */
  983.   if (value_bits_any_optimized_out (val,
  984.                                     TARGET_CHAR_BIT * embedded_offset,
  985.                                     TARGET_CHAR_BIT * TYPE_LENGTH (type)))
  986.     val_print_optimized_out (val, stream);
  987.   else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
  988.     val_print_unavailable (stream);
  989.   else
  990.     print_scalar_formatted (valaddr + embedded_offset, type,
  991.                             options, size, stream);
  992. }

  994. /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
  995.    The raison d'etre of this function is to consolidate printing of
  996.    LONG_LONG's into this one function.  The format chars b,h,w,g are
  997.    from print_scalar_formatted().  Numbers are printed using C
  998.    format.

  1000.    USE_C_FORMAT means to use C format in all cases.  Without it,
  1001.    'o' and 'x' format do not include the standard C radix prefix
  1002.    (leading 0 or 0x).

  1004.    Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
  1005.    and was intended to request formating according to the current
  1006.    language and would be used for most integers that GDB prints.  The
  1007.    exceptional cases were things like protocols where the format of
  1008.    the integer is a protocol thing, not a user-visible thing).  The
  1009.    parameter remains to preserve the information of what things might
  1010.    be printed with language-specific format, should we ever resurrect
  1011.    that capability.  */

  1013. void
  1014. ‌print_longest (struct ui_file *stream, int format, int use_c_format,
  1015.                LONGEST val_long)
  1016. {
  1017.   const char *val;

  1019.   switch (format)
  1020.     {
  1021.     case 'd':
  1022.       val = int_string (val_long, 10, 1, 0, 1); break;
  1023.     case 'u':
  1024.       val = int_string (val_long, 10, 0, 0, 1); break;
  1025.     case 'x':
  1026.       val = int_string (val_long, 16, 0, 0, use_c_format); break;
  1027.     case 'b':
  1028.       val = int_string (val_long, 16, 0, 2, 1); break;
  1029.     case 'h':
  1030.       val = int_string (val_long, 16, 0, 4, 1); break;
  1031.     case 'w':
  1032.       val = int_string (val_long, 16, 0, 8, 1); break;
  1033.     case 'g':
  1034.       val = int_string (val_long, 16, 0, 16, 1); break;
  1035.       break;
  1036.     case 'o':
  1037.       val = int_string (val_long, 8, 0, 0, use_c_format); break;
  1038.     default:
  1039.       internal_error (__FILE__, __LINE__,
  1040.                       _("failed internal consistency check"));
  1041.     }
  1042.   fputs_filtered (val, stream);
  1043. }

  1045. /* This used to be a macro, but I don't think it is called often enough
  1046.    to merit such treatment.  */
  1047. /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
  1048.    arguments to a function, number in a value history, register number, etc.)
  1049.    where the value must not be larger than can fit in an int.  */

  1051. int
  1052. ‌longest_to_int (LONGEST arg)
  1053. {
  1054.   /* Let the compiler do the work.  */
  1055.   int rtnval = (int) arg;

  1057.   /* Check for overflows or underflows.  */
  1058.   if (sizeof (LONGEST) > sizeof (int))
  1059.     {
  1060.       if (rtnval != arg)
  1061.         {
  1062.           error (_("Value out of range."));
  1063.         }
  1064.     }
  1065.   return (rtnval);
  1066. }

  1068. /* Print a floating point value of type TYPE (not always a
  1069.    TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM.  */

  1071. void
  1072. ‌print_floating (const gdb_byte *valaddr, struct type *type,
  1073.                 struct ui_file *stream)
  1074. {
  1075.   DOUBLEST doub;
  1076.   int inv;
  1077.   const struct floatformat *fmt = NULL;
  1078.   unsigned len = TYPE_LENGTH (type);
  1079.   enum float_kind kind;

  1081.   /* If it is a floating-point, check for obvious problems.  */
  1082.   if (TYPE_CODE (type) == TYPE_CODE_FLT)
  1083.     fmt = floatformat_from_type (type);
  1084.   if (fmt != NULL)
  1085.     {
  1086.       kind = floatformat_classify (fmt, valaddr);
  1087.       if (kind == float_nan)
  1088.         {
  1089.           if (floatformat_is_negative (fmt, valaddr))
  1090.             fprintf_filtered (stream, "-");
  1091.           fprintf_filtered (stream, "nan(");
  1092.           fputs_filtered ("0x", stream);
  1093.           fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
  1094.           fprintf_filtered (stream, ")");
  1095.           return;
  1096.         }
  1097.       else if (kind == float_infinite)
  1098.         {
  1099.           if (floatformat_is_negative (fmt, valaddr))
  1100.             fputs_filtered ("-", stream);
  1101.           fputs_filtered ("inf", stream);
  1102.           return;
  1103.         }
  1104.     }

  1106.   /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
  1107.      isn't necessarily a TYPE_CODE_FLT.  Consequently, unpack_double
  1108.      needs to be used as that takes care of any necessary type
  1109.      conversions.  Such conversions are of course direct to DOUBLEST
  1110.      and disregard any possible target floating point limitations.
  1111.      For instance, a u64 would be converted and displayed exactly on a
  1112.      host with 80 bit DOUBLEST but with loss of information on a host
  1113.      with 64 bit DOUBLEST.  */

  1115.   doub = unpack_double (type, valaddr, &inv);
  1116.   if (inv)
  1117.     {
  1118.       fprintf_filtered (stream, "<invalid float value>");
  1119.       return;
  1120.     }

  1122.   /* FIXME: kettenis/2001-01-20: The following code makes too much
  1123.      assumptions about the host and target floating point format.  */

  1125.   /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
  1126.      not necessarily be a TYPE_CODE_FLT, the below ignores that and
  1127.      instead uses the type's length to determine the precision of the
  1128.      floating-point value being printed.  */

  1130.   if (len < sizeof (double))
  1131.       fprintf_filtered (stream, "%.9g", (double) doub);
  1132.   else if (len == sizeof (double))
  1133.       fprintf_filtered (stream, "%.17g", (double) doub);
  1134.   else
  1135. #ifdef PRINTF_HAS_LONG_DOUBLE
  1136.     fprintf_filtered (stream, "%.35Lg", doub);
  1137. #else
  1138.     /* This at least wins with values that are representable as
  1139.        doubles.  */
  1140.     fprintf_filtered (stream, "%.17g", (double) doub);
  1141. #endif
  1142. }

  1144. void
  1145. ‌print_decimal_floating (const gdb_byte *valaddr, struct type *type,
  1146.                         struct ui_file *stream)
  1147. {
  1148.   enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
  1149.   char decstr[MAX_DECIMAL_STRING];
  1150.   unsigned len = TYPE_LENGTH (type);

  1152.   decimal_to_string (valaddr, len, byte_order, decstr);
  1153.   fputs_filtered (decstr, stream);
  1154.   return;
  1155. }

  1157. void
  1158. ‌print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
  1159.                     unsigned len, enum bfd_endian byte_order)
  1160. {

  1162. ‌#define BITS_IN_BYTES 8

  1164.   const gdb_byte *p;
  1165.   unsigned int i;
  1166.   int b;

  1168.   /* Declared "int" so it will be signed.
  1169.      This ensures that right shift will shift in zeros.  */

  1171.   const int mask = 0x080;

  1173.   /* FIXME: We should be not printing leading zeroes in most cases.  */

  1175.   if (byte_order == BFD_ENDIAN_BIG)
  1176.     {
  1177.       for (p = valaddr;
  1178.            p < valaddr + len;
  1179.            p++)
  1180.         {
  1181.           /* Every byte has 8 binary characters; peel off
  1182.              and print from the MSB end.  */

  1184.           for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
  1185.             {
  1186.               if (*p & (mask >> i))
  1187.                 b = 1;
  1188.               else
  1189.                 b = 0;

  1191.               fprintf_filtered (stream, "%1d", b);
  1192.             }
  1193.         }
  1194.     }
  1195.   else
  1196.     {
  1197.       for (p = valaddr + len - 1;
  1198.            p >= valaddr;
  1199.            p--)
  1200.         {
  1201.           for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
  1202.             {
  1203.               if (*p & (mask >> i))
  1204.                 b = 1;
  1205.               else
  1206.                 b = 0;

  1208.               fprintf_filtered (stream, "%1d", b);
  1209.             }
  1210.         }
  1211.     }
  1212. }

  1214. /* VALADDR points to an integer of LEN bytes.
  1215.    Print it in octal on stream or format it in buf.  */

  1217. void
  1218. ‌print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
  1219.                    unsigned len, enum bfd_endian byte_order)
  1220. {
  1221.   const gdb_byte *p;
  1222.   unsigned char octa1, octa2, octa3, carry;
  1223.   int cycle;

  1225.   /* FIXME: We should be not printing leading zeroes in most cases.  */


  1228.   /* Octal is 3 bits, which doesn't fit.  Yuk.  So we have to track
  1229.    * the extra bits, which cycle every three bytes:
  1230.    *
  1231.    * Byte side:       0            1             2          3
  1232.    *                         |             |            |            |
  1233.    * bit number   123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
  1234.    *
  1235.    * Octal side:   0   1   carry  3   4  carry ...
  1236.    *
  1237.    * Cycle number:    0             1            2
  1238.    *
  1239.    * But of course we are printing from the high side, so we have to
  1240.    * figure out where in the cycle we are so that we end up with no
  1241.    * left over bits at the end.
  1242.    */
  1243. ‌#define BITS_IN_OCTAL 3
  1244. ‌#define HIGH_ZERO     0340
  1245. ‌#define LOW_ZERO      0016
  1246. ‌#define CARRY_ZERO    0003
  1247. ‌#define HIGH_ONE      0200
  1248. ‌#define MID_ONE       0160
  1249. ‌#define LOW_ONE       0016
  1250. ‌#define CARRY_ONE     0001
  1251. ‌#define HIGH_TWO      0300
  1252. ‌#define MID_TWO       0070
  1253. ‌#define LOW_TWO       0007

  1255.   /* For 32 we start in cycle 2, with two bits and one bit carry;
  1256.      for 64 in cycle in cycle 1, with one bit and a two bit carry.  */

  1258.   cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
  1259.   carry = 0;

  1261.   fputs_filtered ("0", stream);
  1262.   if (byte_order == BFD_ENDIAN_BIG)
  1263.     {
  1264.       for (p = valaddr;
  1265.            p < valaddr + len;
  1266.            p++)
  1267.         {
  1268.           switch (cycle)
  1269.             {
  1270.             case 0:
  1271.               /* No carry in, carry out two bits.  */

  1273.               octa1 = (HIGH_ZERO & *p) >> 5;
  1274.               octa2 = (LOW_ZERO & *p) >> 2;
  1275.               carry = (CARRY_ZERO & *p);
  1276.               fprintf_filtered (stream, "%o", octa1);
  1277.               fprintf_filtered (stream, "%o", octa2);
  1278.               break;

  1280.             case 1:
  1281.               /* Carry in two bits, carry out one bit.  */

  1283.               octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
  1284.               octa2 = (MID_ONE & *p) >> 4;
  1285.               octa3 = (LOW_ONE & *p) >> 1;
  1286.               carry = (CARRY_ONE & *p);
  1287.               fprintf_filtered (stream, "%o", octa1);
  1288.               fprintf_filtered (stream, "%o", octa2);
  1289.               fprintf_filtered (stream, "%o", octa3);
  1290.               break;

  1292.             case 2:
  1293.               /* Carry in one bit, no carry out.  */

  1295.               octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
  1296.               octa2 = (MID_TWO & *p) >> 3;
  1297.               octa3 = (LOW_TWO & *p);
  1298.               carry = 0;
  1299.               fprintf_filtered (stream, "%o", octa1);
  1300.               fprintf_filtered (stream, "%o", octa2);
  1301.               fprintf_filtered (stream, "%o", octa3);
  1302.               break;

  1304.             default:
  1305.               error (_("Internal error in octal conversion;"));
  1306.             }

  1308.           cycle++;
  1309.           cycle = cycle % BITS_IN_OCTAL;
  1310.         }
  1311.     }
  1312.   else
  1313.     {
  1314.       for (p = valaddr + len - 1;
  1315.            p >= valaddr;
  1316.            p--)
  1317.         {
  1318.           switch (cycle)
  1319.             {
  1320.             case 0:
  1321.               /* Carry out, no carry in */

  1323.               octa1 = (HIGH_ZERO & *p) >> 5;
  1324.               octa2 = (LOW_ZERO & *p) >> 2;
  1325.               carry = (CARRY_ZERO & *p);
  1326.               fprintf_filtered (stream, "%o", octa1);
  1327.               fprintf_filtered (stream, "%o", octa2);
  1328.               break;

  1330.             case 1:
  1331.               /* Carry in, carry out */

  1333.               octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
  1334.               octa2 = (MID_ONE & *p) >> 4;
  1335.               octa3 = (LOW_ONE & *p) >> 1;
  1336.               carry = (CARRY_ONE & *p);
  1337.               fprintf_filtered (stream, "%o", octa1);
  1338.               fprintf_filtered (stream, "%o", octa2);
  1339.               fprintf_filtered (stream, "%o", octa3);
  1340.               break;

  1342.             case 2:
  1343.               /* Carry in, no carry out */

  1345.               octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
  1346.               octa2 = (MID_TWO & *p) >> 3;
  1347.               octa3 = (LOW_TWO & *p);
  1348.               carry = 0;
  1349.               fprintf_filtered (stream, "%o", octa1);
  1350.               fprintf_filtered (stream, "%o", octa2);
  1351.               fprintf_filtered (stream, "%o", octa3);
  1352.               break;

  1354.             default:
  1355.               error (_("Internal error in octal conversion;"));
  1356.             }

  1358.           cycle++;
  1359.           cycle = cycle % BITS_IN_OCTAL;
  1360.         }
  1361.     }

  1363. }

  1365. /* VALADDR points to an integer of LEN bytes.
  1366.    Print it in decimal on stream or format it in buf.  */

  1368. void
  1369. ‌print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
  1370.                      unsigned len, enum bfd_endian byte_order)
  1371. {
  1372. ‌#define TEN             10
  1373. ‌#define CARRY_OUT(  x ) ((x) / TEN)        /* extend char to int */
  1374. ‌#define CARRY_LEFT( x ) ((x) % TEN)
  1375. ‌#define SHIFT( x )      ((x) << 4)
  1376. ‌#define LOW_NIBBLE(  x ) ( (x) & 0x00F)
  1377. ‌#define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)

  1379.   const gdb_byte *p;
  1380.   unsigned char *digits;
  1381.   int carry;
  1382.   int decimal_len;
  1383.   int i, j, decimal_digits;
  1384.   int dummy;
  1385.   int flip;

  1387.   /* Base-ten number is less than twice as many digits
  1388.      as the base 16 number, which is 2 digits per byte.  */

  1390.   decimal_len = len * 2 * 2;
  1391.   digits = xmalloc (decimal_len);

  1393.   for (i = 0; i < decimal_len; i++)
  1394.     {
  1395.       digits[i] = 0;
  1396.     }

  1398.   /* Ok, we have an unknown number of bytes of data to be printed in
  1399.    * decimal.
  1400.    *
  1401.    * Given a hex number (in nibbles) as XYZ, we start by taking X and
  1402.    * decemalizing it as "x1 x2" in two decimal nibbles.  Then we multiply
  1403.    * the nibbles by 16, add Y and re-decimalize.  Repeat with Z.
  1404.    *
  1405.    * The trick is that "digits" holds a base-10 number, but sometimes
  1406.    * the individual digits are > 10.
  1407.    *
  1408.    * Outer loop is per nibble (hex digit) of input, from MSD end to
  1409.    * LSD end.
  1410.    */
  1411.   decimal_digits = 0;                /* Number of decimal digits so far */
  1412.   p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
  1413.   flip = 0;
  1414.   while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
  1415.     {
  1416.       /*
  1417.        * Multiply current base-ten number by 16 in place.
  1418.        * Each digit was between 0 and 9, now is between
  1419.        * 0 and 144.
  1420.        */
  1421.       for (j = 0; j < decimal_digits; j++)
  1422.         {
  1423.           digits[j] = SHIFT (digits[j]);
  1424.         }

  1426.       /* Take the next nibble off the input and add it to what
  1427.        * we've got in the LSB position.  Bottom 'digit' is now
  1428.        * between 0 and 159.
  1429.        *
  1430.        * "flip" is used to run this loop twice for each byte.
  1431.        */
  1432.       if (flip == 0)
  1433.         {
  1434.           /* Take top nibble.  */

  1436.           digits[0] += HIGH_NIBBLE (*p);
  1437.           flip = 1;
  1438.         }
  1439.       else
  1440.         {
  1441.           /* Take low nibble and bump our pointer "p".  */

  1443.           digits[0] += LOW_NIBBLE (*p);
  1444.           if (byte_order == BFD_ENDIAN_BIG)
  1445.             p++;
  1446.           else
  1447.             p--;
  1448.           flip = 0;
  1449.         }

  1451.       /* Re-decimalize.  We have to do this often enough
  1452.        * that we don't overflow, but once per nibble is
  1453.        * overkill.  Easier this way, though.  Note that the
  1454.        * carry is often larger than 10 (e.g. max initial
  1455.        * carry out of lowest nibble is 15, could bubble all
  1456.        * the way up greater than 10).  So we have to do
  1457.        * the carrying beyond the last current digit.
  1458.        */
  1459.       carry = 0;
  1460.       for (j = 0; j < decimal_len - 1; j++)
  1461.         {
  1462.           digits[j] += carry;

  1464.           /* "/" won't handle an unsigned char with
  1465.            * a value that if signed would be negative.
  1466.            * So extend to longword int via "dummy".
  1467.            */
  1468.           dummy = digits[j];
  1469.           carry = CARRY_OUT (dummy);
  1470.           digits[j] = CARRY_LEFT (dummy);

  1472.           if (j >= decimal_digits && carry == 0)
  1473.             {
  1474.               /*
  1475.                * All higher digits are 0 and we
  1476.                * no longer have a carry.
  1477.                *
  1478.                * Note: "j" is 0-based, "decimal_digits" is
  1479.                *       1-based.
  1480.                */
  1481.               decimal_digits = j + 1;
  1482.               break;
  1483.             }
  1484.         }
  1485.     }

  1487.   /* Ok, now "digits" is the decimal representation, with
  1488.      the "decimal_digits" actual digits.  Print!  */

  1490.   for (i = decimal_digits - 1; i >= 0; i--)
  1491.     {
  1492.       fprintf_filtered (stream, "%1d", digits[i]);
  1493.     }
  1494.   xfree (digits);
  1495. }

  1497. /* VALADDR points to an integer of LEN bytes.  Print it in hex on stream.  */

  1499. void
  1500. ‌print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
  1501.                  unsigned len, enum bfd_endian byte_order)
  1502. {
  1503.   const gdb_byte *p;

  1505.   /* FIXME: We should be not printing leading zeroes in most cases.  */

  1507.   fputs_filtered ("0x", stream);
  1508.   if (byte_order == BFD_ENDIAN_BIG)
  1509.     {
  1510.       for (p = valaddr;
  1511.            p < valaddr + len;
  1512.            p++)
  1513.         {
  1514.           fprintf_filtered (stream, "%02x", *p);
  1515.         }
  1516.     }
  1517.   else
  1518.     {
  1519.       for (p = valaddr + len - 1;
  1520.            p >= valaddr;
  1521.            p--)
  1522.         {
  1523.           fprintf_filtered (stream, "%02x", *p);
  1524.         }
  1525.     }
  1526. }

  1528. /* VALADDR points to a char integer of LEN bytes.
  1529.    Print it out in appropriate language form on stream.
  1530.    Omit any leading zero chars.  */

  1532. void
  1533. ‌print_char_chars (struct ui_file *stream, struct type *type,
  1534.                   const gdb_byte *valaddr,
  1535.                   unsigned len, enum bfd_endian byte_order)
  1536. {
  1537.   const gdb_byte *p;

  1539.   if (byte_order == BFD_ENDIAN_BIG)
  1540.     {
  1541.       p = valaddr;
  1542.       while (p < valaddr + len - 1 && *p == 0)
  1543.         ++p;

  1545.       while (p < valaddr + len)
  1546.         {
  1547.           LA_EMIT_CHAR (*p, type, stream, '\'');
  1548.           ++p;
  1549.         }
  1550.     }
  1551.   else
  1552.     {
  1553.       p = valaddr + len - 1;
  1554.       while (p > valaddr && *p == 0)
  1555.         --p;

  1557.       while (p >= valaddr)
  1558.         {
  1559.           LA_EMIT_CHAR (*p, type, stream, '\'');
  1560.           --p;
  1561.         }
  1562.     }
  1563. }

  1565. /* Print function pointer with inferior address ADDRESS onto stdio
  1566.    stream STREAM.  */

  1568. void
  1569. ‌print_function_pointer_address (const struct value_print_options *options,
  1570.                                 struct gdbarch *gdbarch,
  1571.                                 CORE_ADDR address,
  1572.                                 struct ui_file *stream)
  1573. {
  1574.   CORE_ADDR func_addr
  1575.     = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
  1576.                                           &current_target);

  1578.   /* If the function pointer is represented by a description, print
  1579.      the address of the description.  */
  1580.   if (options->addressprint && func_addr != address)
  1581.     {
  1582.       fputs_filtered ("@", stream);
  1583.       fputs_filtered (paddress (gdbarch, address), stream);
  1584.       fputs_filtered (": ", stream);
  1585.     }
  1586.   print_address_demangle (options, gdbarch, func_addr, stream, demangle);
  1587. }


  1590. /* Print on STREAM using the given OPTIONS the index for the element
  1591.    at INDEX of an array whose index type is INDEX_TYPE.  */

  1593. void
  1594. ‌maybe_print_array_index (struct type *index_type, LONGEST index,
  1595.                          struct ui_file *stream,
  1596.                          const struct value_print_options *options)
  1597. {
  1598.   struct value *index_value;

  1600.   if (!options->print_array_indexes)
  1601.     return;

  1603.   index_value = value_from_longest (index_type, index);

  1605.   LA_PRINT_ARRAY_INDEX (index_value, stream, options);
  1606. }

  1608. /*  Called by various <lang>_val_print routines to print elements of an
  1609.    array in the form "<elem1>, <elem2>, <elem3>, ...".

  1611.    (FIXME?)  Assumes array element separator is a comma, which is correct
  1612.    for all languages currently handled.
  1613.    (FIXME?)  Some languages have a notation for repeated array elements,
  1614.    perhaps we should try to use that notation when appropriate.  */

  1616. void
  1617. ‌val_print_array_elements (struct type *type,
  1618.                           const gdb_byte *valaddr, int embedded_offset,
  1619.                           CORE_ADDR address, struct ui_file *stream,
  1620.                           int recurse,
  1621.                           const struct value *val,
  1622.                           const struct value_print_options *options,
  1623.                           unsigned int i)
  1624. {
  1625.   unsigned int things_printed = 0;
  1626.   unsigned len;
  1627.   struct type *elttype, *index_type;
  1628.   unsigned eltlen;
  1629.   /* Position of the array element we are examining to see
  1630.      whether it is repeated.  */
  1631.   unsigned int rep1;
  1632.   /* Number of repetitions we have detected so far.  */
  1633.   unsigned int reps;
  1634.   LONGEST low_bound, high_bound;

  1636.   elttype = TYPE_TARGET_TYPE (type);
  1637.   eltlen = TYPE_LENGTH (check_typedef (elttype));
  1638.   index_type = TYPE_INDEX_TYPE (type);

  1640.   if (get_array_bounds (type, &low_bound, &high_bound))
  1641.     {
  1642.       /* The array length should normally be HIGH_BOUND - LOW_BOUND + 1.
  1643.          But we have to be a little extra careful, because some languages
  1644.          such as Ada allow LOW_BOUND to be greater than HIGH_BOUND for
  1645.          empty arrays.  In that situation, the array length is just zero,
  1646.          not negative!  */
  1647.       if (low_bound > high_bound)
  1648.         len = 0;
  1649.       else
  1650.         len = high_bound - low_bound + 1;
  1651.     }
  1652.   else
  1653.     {
  1654.       warning (_("unable to get bounds of array, assuming null array"));
  1655.       low_bound = 0;
  1656.       len = 0;
  1657.     }

  1659.   annotate_array_section_begin (i, elttype);

  1661.   for (; i < len && things_printed < options->print_max; i++)
  1662.     {
  1663.       if (i != 0)
  1664.         {
  1665.           if (options->prettyformat_arrays)
  1666.             {
  1667.               fprintf_filtered (stream, ",\n");
  1668.               print_spaces_filtered (2 + 2 * recurse, stream);
  1669.             }
  1670.           else
  1671.             {
  1672.               fprintf_filtered (stream, ", ");
  1673.             }
  1674.         }
  1675.       wrap_here (n_spaces (2 + 2 * recurse));
  1676.       maybe_print_array_index (index_type, i + low_bound,
  1677.                                stream, options);

  1679.       rep1 = i + 1;
  1680.       reps = 1;
  1681.       /* Only check for reps if repeat_count_threshold is not set to
  1682.          UINT_MAX (unlimited).  */
  1683.       if (options->repeat_count_threshold < UINT_MAX)
  1684.         {
  1685.           while (rep1 < len
  1686.                  && value_contents_eq (val,
  1687.                                        embedded_offset + i * eltlen,
  1688.                                        val,
  1689.                                        (embedded_offset
  1690.                                         + rep1 * eltlen),
  1691.                                        eltlen))
  1692.             {
  1693.               ++reps;
  1694.               ++rep1;
  1695.             }
  1696.         }

  1698.       if (reps > options->repeat_count_threshold)
  1699.         {
  1700.           val_print (elttype, valaddr, embedded_offset + i * eltlen,
  1701.                      address, stream, recurse + 1, val, options,
  1702.                      current_language);
  1703.           annotate_elt_rep (reps);
  1704.           fprintf_filtered (stream, " <repeats %u times>", reps);
  1705.           annotate_elt_rep_end ();

  1707.           i = rep1 - 1;
  1708.           things_printed += options->repeat_count_threshold;
  1709.         }
  1710.       else
  1711.         {
  1712.           val_print (elttype, valaddr, embedded_offset + i * eltlen,
  1713.                      address,
  1714.                      stream, recurse + 1, val, options, current_language);
  1715.           annotate_elt ();
  1716.           things_printed++;
  1717.         }
  1718.     }
  1719.   annotate_array_section_end ();
  1720.   if (i < len)
  1721.     {
  1722.       fprintf_filtered (stream, "...");
  1723.     }
  1724. }

  1726. /* Read LEN bytes of target memory at address MEMADDR, placing the
  1727.    results in GDB's memory at MYADDR.  Returns a count of the bytes
  1728.    actually read, and optionally a target_xfer_status value in the
  1729.    location pointed to by ERRPTR if ERRPTR is non-null.  */

  1731. /* FIXME: cagney/1999-10-14: Only used by val_print_string.  Can this
  1732.    function be eliminated.  */

  1734. static int
  1735. ‌partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
  1736.                      int len, int *errptr)
  1737. {
  1738.   int nread;                        /* Number of bytes actually read.  */
  1739.   int errcode;                        /* Error from last read.  */

  1741.   /* First try a complete read.  */
  1742.   errcode = target_read_memory (memaddr, myaddr, len);
  1743.   if (errcode == 0)
  1744.     {
  1745.       /* Got it all.  */
  1746.       nread = len;
  1747.     }
  1748.   else
  1749.     {
  1750.       /* Loop, reading one byte at a time until we get as much as we can.  */
  1751.       for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
  1752.         {
  1753.           errcode = target_read_memory (memaddr++, myaddr++, 1);
  1754.         }
  1755.       /* If an error, the last read was unsuccessful, so adjust count.  */
  1756.       if (errcode != 0)
  1757.         {
  1758.           nread--;
  1759.         }
  1760.     }
  1761.   if (errptr != NULL)
  1762.     {
  1763.       *errptr = errcode;
  1764.     }
  1765.   return (nread);
  1766. }

  1768. /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
  1769.    each.  Fetch at most FETCHLIMIT characters.  BUFFER will be set to a newly
  1770.    allocated buffer containing the string, which the caller is responsible to
  1771.    free, and BYTES_READ will be set to the number of bytes read.  Returns 0 on
  1772.    success, or a target_xfer_status on failure.

  1774.    If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
  1775.    (including eventual NULs in the middle or end of the string).

  1777.    If LEN is -1, stops at the first null character (not necessarily
  1778.    the first null byte) up to a maximum of FETCHLIMIT characters.  Set
  1779.    FETCHLIMIT to UINT_MAX to read as many characters as possible from
  1780.    the string.

  1782.    Unless an exception is thrown, BUFFER will always be allocated, even on
  1783.    failure.  In this case, some characters might have been read before the
  1784.    failure happened.  Check BYTES_READ to recognize this situation.

  1786.    Note: There was a FIXME asking to make this code use target_read_string,
  1787.    but this function is more general (can read past null characters, up to
  1788.    given LEN).  Besides, it is used much more often than target_read_string
  1789.    so it is more tested.  Perhaps callers of target_read_string should use
  1790.    this function instead?  */

  1792. int
  1793. ‌read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
  1794.              enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
  1795. {
  1796.   int errcode;                        /* Errno returned from bad reads.  */
  1797.   unsigned int nfetch;                /* Chars to fetch / chars fetched.  */
  1798.   gdb_byte *bufptr;                /* Pointer to next available byte in
  1799.                                    buffer.  */
  1800.   struct cleanup *old_chain = NULL;        /* Top of the old cleanup chain.  */

  1802.   /* Loop until we either have all the characters, or we encounter
  1803.      some error, such as bumping into the end of the address space.  */

  1805.   *buffer = NULL;

  1807.   old_chain = make_cleanup (free_current_contents, buffer);

  1809.   if (len > 0)
  1810.     {
  1811.       /* We want fetchlimit chars, so we might as well read them all in
  1812.          one operation.  */
  1813.       unsigned int fetchlen = min (len, fetchlimit);

  1815.       *buffer = (gdb_byte *) xmalloc (fetchlen * width);
  1816.       bufptr = *buffer;

  1818.       nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
  1819.         / width;
  1820.       addr += nfetch * width;
  1821.       bufptr += nfetch * width;
  1822.     }
  1823.   else if (len == -1)
  1824.     {
  1825.       unsigned long bufsize = 0;
  1826.       unsigned int chunksize;        /* Size of each fetch, in chars.  */
  1827.       int found_nul;                /* Non-zero if we found the nul char.  */
  1828.       gdb_byte *limit;                /* First location past end of fetch buffer.  */

  1830.       found_nul = 0;
  1831.       /* We are looking for a NUL terminator to end the fetching, so we
  1832.          might as well read in blocks that are large enough to be efficient,
  1833.          but not so large as to be slow if fetchlimit happens to be large.
  1834.          So we choose the minimum of 8 and fetchlimit.  We used to use 200
  1835.          instead of 8 but 200 is way too big for remote debugging over a
  1836.           serial line.  */
  1837.       chunksize = min (8, fetchlimit);

  1839.       do
  1840.         {
  1841.           QUIT;
  1842.           nfetch = min (chunksize, fetchlimit - bufsize);

  1844.           if (*buffer == NULL)
  1845.             *buffer = (gdb_byte *) xmalloc (nfetch * width);
  1846.           else
  1847.             *buffer = (gdb_byte *) xrealloc (*buffer,
  1848.                                              (nfetch + bufsize) * width);

  1850.           bufptr = *buffer + bufsize * width;
  1851.           bufsize += nfetch;

  1853.           /* Read as much as we can.  */
  1854.           nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
  1855.                     / width;

  1857.           /* Scan this chunk for the null character that terminates the string
  1858.              to print.  If found, we don't need to fetch any more.  Note
  1859.              that bufptr is explicitly left pointing at the next character
  1860.              after the null character, or at the next character after the end
  1861.              of the buffer.  */

  1863.           limit = bufptr + nfetch * width;
  1864.           while (bufptr < limit)
  1865.             {
  1866.               unsigned long c;

  1868.               c = extract_unsigned_integer (bufptr, width, byte_order);
  1869.               addr += width;
  1870.               bufptr += width;
  1871.               if (c == 0)
  1872.                 {
  1873.                   /* We don't care about any error which happened after
  1874.                      the NUL terminator.  */
  1875.                   errcode = 0;
  1876.                   found_nul = 1;
  1877.                   break;
  1878.                 }
  1879.             }
  1880.         }
  1881.       while (errcode == 0        /* no error */
  1882.              && bufptr - *buffer < fetchlimit * width        /* no overrun */
  1883.              && !found_nul);        /* haven't found NUL yet */
  1884.     }
  1885.   else
  1886.     {                                /* Length of string is really 0!  */
  1887.       /* We always allocate *buffer.  */
  1888.       *buffer = bufptr = xmalloc (1);
  1889.       errcode = 0;
  1890.     }

  1892.   /* bufptr and addr now point immediately beyond the last byte which we
  1893.      consider part of the string (including a '\0' which ends the string).  */
  1894.   *bytes_read = bufptr - *buffer;

  1896.   QUIT;

  1898.   discard_cleanups (old_chain);

  1900.   return errcode;
  1901. }

  1903. /* Return true if print_wchar can display W without resorting to a
  1904.    numeric escape, false otherwise.  */

  1906. static int
  1907. ‌wchar_printable (gdb_wchar_t w)
  1908. {
  1909.   return (gdb_iswprint (w)
  1910.           || w == LCST ('\a') || w == LCST ('\b')
  1911.           || w == LCST ('\f') || w == LCST ('\n')
  1912.           || w == LCST ('\r') || w == LCST ('\t')
  1913.           || w == LCST ('\v'));
  1914. }

  1916. /* A helper function that converts the contents of STRING to wide
  1917.    characters and then appends them to OUTPUT.  */

  1919. static void
  1920. ‌append_string_as_wide (const char *string,
  1921.                        struct obstack *output)
  1922. {
  1923.   for (; *string; ++string)
  1924.     {
  1925.       gdb_wchar_t w = gdb_btowc (*string);
  1926.       obstack_grow (output, &w, sizeof (gdb_wchar_t));
  1927.     }
  1928. }

  1930. /* Print a wide character W to OUTPUT.  ORIG is a pointer to the
  1931.    original (target) bytes representing the character, ORIG_LEN is the
  1932.    number of valid bytes.  WIDTH is the number of bytes in a base
  1933.    characters of the type.  OUTPUT is an obstack to which wide
  1934.    characters are emitted.  QUOTER is a (narrow) character indicating
  1935.    the style of quotes surrounding the character to be printed.
  1936.    NEED_ESCAPE is an in/out flag which is used to track numeric
  1937.    escapes across calls.  */

  1939. static void
  1940. ‌print_wchar (gdb_wint_t w, const gdb_byte *orig,
  1941.              int orig_len, int width,
  1942.              enum bfd_endian byte_order,
  1943.              struct obstack *output,
  1944.              int quoter, int *need_escapep)
  1945. {
  1946.   int need_escape = *need_escapep;

  1948.   *need_escapep = 0;

  1950.   /* iswprint implementation on Windows returns 1 for tab character.
  1951.      In order to avoid different printout on this host, we explicitly
  1952.      use wchar_printable function.  */
  1953.   switch (w)
  1954.     {
  1955.       case LCST ('\a'):
  1956.         obstack_grow_wstr (output, LCST ("\\a"));
  1957.         break;
  1958.       case LCST ('\b'):
  1959.         obstack_grow_wstr (output, LCST ("\\b"));
  1960.         break;
  1961.       case LCST ('\f'):
  1962.         obstack_grow_wstr (output, LCST ("\\f"));
  1963.         break;
  1964.       case LCST ('\n'):
  1965.         obstack_grow_wstr (output, LCST ("\\n"));
  1966.         break;
  1967.       case LCST ('\r'):
  1968.         obstack_grow_wstr (output, LCST ("\\r"));
  1969.         break;
  1970.       case LCST ('\t'):
  1971.         obstack_grow_wstr (output, LCST ("\\t"));
  1972.         break;
  1973.       case LCST ('\v'):
  1974.         obstack_grow_wstr (output, LCST ("\\v"));
  1975.         break;
  1976.       default:
  1977.         {
  1978.           if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
  1979.                                                        && w != LCST ('8')
  1980.                                                        && w != LCST ('9'))))
  1981.             {
  1982.               gdb_wchar_t wchar = w;

  1984.               if (w == gdb_btowc (quoter) || w == LCST ('\\'))
  1985.                 obstack_grow_wstr (output, LCST ("\\"));
  1986.               obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
  1987.             }
  1988.           else
  1989.             {
  1990.               int i;

  1992.               for (i = 0; i + width <= orig_len; i += width)
  1993.                 {
  1994.                   char octal[30];
  1995.                   ULONGEST value;

  1997.                   value = extract_unsigned_integer (&orig[i], width,
  1998.                                                   byte_order);
  1999.                   /* If the value fits in 3 octal digits, print it that
  2000.                      way.  Otherwise, print it as a hex escape.  */
  2001.                   if (value <= 0777)
  2002.                     xsnprintf (octal, sizeof (octal), "\\%.3o",
  2003.                                (int) (value & 0777));
  2004.                   else
  2005.                     xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
  2006.                   append_string_as_wide (octal, output);
  2007.                 }
  2008.               /* If we somehow have extra bytes, print them now.  */
  2009.               while (i < orig_len)
  2010.                 {
  2011.                   char octal[5];

  2013.                   xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
  2014.                   append_string_as_wide (octal, output);
  2015.                   ++i;
  2016.                 }

  2018.               *need_escapep = 1;
  2019.             }
  2020.           break;
  2021.         }
  2022.     }
  2023. }

  2025. /* Print the character C on STREAM as part of the contents of a
  2026.    literal string whose delimiter is QUOTER.  ENCODING names the
  2027.    encoding of C.  */

  2029. void
  2030. ‌generic_emit_char (int c, struct type *type, struct ui_file *stream,
  2031.                    int quoter, const char *encoding)
  2032. {
  2033.   enum bfd_endian byte_order
  2034.     = gdbarch_byte_order (get_type_arch (type));
  2035.   struct obstack wchar_buf, output;
  2036.   struct cleanup *cleanups;
  2037.   gdb_byte *buf;
  2038.   struct wchar_iterator *iter;
  2039.   int need_escape = 0;

  2041.   buf = alloca (TYPE_LENGTH (type));
  2042.   pack_long (buf, type, c);

  2044.   iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
  2045.                               encoding, TYPE_LENGTH (type));
  2046.   cleanups = make_cleanup_wchar_iterator (iter);

  2048.   /* This holds the printable form of the wchar_t data.  */
  2049.   obstack_init (&wchar_buf);
  2050.   make_cleanup_obstack_free (&wchar_buf);

  2052.   while (1)
  2053.     {
  2054.       int num_chars;
  2055.       gdb_wchar_t *chars;
  2056.       const gdb_byte *buf;
  2057.       size_t buflen;
  2058.       int print_escape = 1;
  2059.       enum wchar_iterate_result result;

  2061.       num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
  2062.       if (num_chars < 0)
  2063.         break;
  2064.       if (num_chars > 0)
  2065.         {
  2066.           /* If all characters are printable, print them.  Otherwise,
  2067.              we're going to have to print an escape sequence.  We
  2068.              check all characters because we want to print the target
  2069.              bytes in the escape sequence, and we don't know character
  2070.              boundaries there.  */
  2071.           int i;

  2073.           print_escape = 0;
  2074.           for (i = 0; i < num_chars; ++i)
  2075.             if (!wchar_printable (chars[i]))
  2076.               {
  2077.                 print_escape = 1;
  2078.                 break;
  2079.               }

  2081.           if (!print_escape)
  2082.             {
  2083.               for (i = 0; i < num_chars; ++i)
  2084.                 print_wchar (chars[i], buf, buflen,
  2085.                              TYPE_LENGTH (type), byte_order,
  2086.                              &wchar_buf, quoter, &need_escape);
  2087.             }
  2088.         }

  2090.       /* This handles the NUM_CHARS == 0 case as well.  */
  2091.       if (print_escape)
  2092.         print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
  2093.                      byte_order, &wchar_buf, quoter, &need_escape);
  2094.     }

  2096.   /* The output in the host encoding.  */
  2097.   obstack_init (&output);
  2098.   make_cleanup_obstack_free (&output);

  2100.   convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
  2101.                              (gdb_byte *) obstack_base (&wchar_buf),
  2102.                              obstack_object_size (&wchar_buf),
  2103.                              sizeof (gdb_wchar_t), &output, translit_char);
  2104.   obstack_1grow (&output, '\0');

  2106.   fputs_filtered (obstack_base (&output), stream);

  2108.   do_cleanups (cleanups);
  2109. }

  2111. /* Return the repeat count of the next character/byte in ITER,
  2112.    storing the result in VEC.  */

  2114. static int
  2115. ‌count_next_character (struct wchar_iterator *iter,
  2116.                       VEC (converted_character_d) **vec)
  2117. {
  2118.   struct converted_character *current;

  2120.   if (VEC_empty (converted_character_d, *vec))
  2121.     {
  2122.       struct converted_character tmp;
  2123.       gdb_wchar_t *chars;

  2125.       tmp.num_chars
  2126.         = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
  2127.       if (tmp.num_chars > 0)
  2128.         {
  2129.           gdb_assert (tmp.num_chars < MAX_WCHARS);
  2130.           memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
  2131.         }
  2132.       VEC_safe_push (converted_character_d, *vec, &tmp);
  2133.     }

  2135.   current = VEC_last (converted_character_d, *vec);

  2137.   /* Count repeated characters or bytes.  */
  2138.   current->repeat_count = 1;
  2139.   if (current->num_chars == -1)
  2140.     {
  2141.       /* EOF  */
  2142.       return -1;
  2143.     }
  2144.   else
  2145.     {
  2146.       gdb_wchar_t *chars;
  2147.       struct converted_character d;
  2148.       int repeat;

  2150.       d.repeat_count = 0;

  2152.       while (1)
  2153.         {
  2154.           /* Get the next character.  */
  2155.           d.num_chars
  2156.             = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);

  2158.           /* If a character was successfully converted, save the character
  2159.              into the converted character.  */
  2160.           if (d.num_chars > 0)
  2161.             {
  2162.               gdb_assert (d.num_chars < MAX_WCHARS);
  2163.               memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
  2164.             }

  2166.           /* Determine if the current character is the same as this
  2167.              new character.  */
  2168.           if (d.num_chars == current->num_chars && d.result == current->result)
  2169.             {
  2170.               /* There are two cases to consider:

  2172.                  1) Equality of converted character (num_chars > 0)
  2173.                  2) Equality of non-converted character (num_chars == 0)  */
  2174.               if ((current->num_chars > 0
  2175.                    && memcmp (current->chars, d.chars,
  2176.                               WCHAR_BUFLEN (current->num_chars)) == 0)
  2177.                   || (current->num_chars == 0
  2178.                       && current->buflen == d.buflen
  2179.                       && memcmp (current->buf, d.buf, current->buflen) == 0))
  2180.                 ++current->repeat_count;
  2181.               else
  2182.                 break;
  2183.             }
  2184.           else
  2185.             break;
  2186.         }

  2188.       /* Push this next converted character onto the result vector.  */
  2189.       repeat = current->repeat_count;
  2190.       VEC_safe_push (converted_character_d, *vec, &d);
  2191.       return repeat;
  2192.     }
  2193. }

  2195. /* Print the characters in CHARS to the OBSTACK.  QUOTE_CHAR is the quote
  2196.    character to use with string output.  WIDTH is the size of the output
  2197.    character type.  BYTE_ORDER is the the target byte order.  OPTIONS
  2198.    is the user's print options.  */

  2200. static void
  2201. ‌print_converted_chars_to_obstack (struct obstack *obstack,
  2202.                                   VEC (converted_character_d) *chars,
  2203.                                   int quote_char, int width,
  2204.                                   enum bfd_endian byte_order,
  2205.                                   const struct value_print_options *options)
  2206. {
  2207.   unsigned int idx;
  2208.   struct converted_character *elem;
  2209.   enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
  2210.   gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
  2211.   int need_escape = 0;

  2213.   /* Set the start state.  */
  2214.   idx = 0;
  2215.   last = state = START;
  2216.   elem = NULL;

  2218.   while (1)
  2219.     {
  2220.       switch (state)
  2221.         {
  2222.         case START:
  2223.           /* Nothing to do.  */
  2224.           break;

  2226.         case SINGLE:
  2227.           {
  2228.             int j;

  2230.             /* We are outputting a single character
  2231.                (< options->repeat_count_threshold).  */

  2233.             if (last != SINGLE)
  2234.               {
  2235.                 /* We were outputting some other type of content, so we
  2236.                    must output and a comma and a quote.  */
  2237.                 if (last != START)
  2238.                   obstack_grow_wstr (obstack, LCST (", "));
  2239.                 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
  2240.               }
  2241.             /* Output the character.  */
  2242.             for (j = 0; j < elem->repeat_count; ++j)
  2243.               {
  2244.                 if (elem->result == wchar_iterate_ok)
  2245.                   print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
  2246.                                byte_order, obstack, quote_char, &need_escape);
  2247.                 else
  2248.                   print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
  2249.                                byte_order, obstack, quote_char, &need_escape);
  2250.               }
  2251.           }
  2252.           break;

  2254.         case REPEAT:
  2255.           {
  2256.             int j;
  2257.             char *s;

  2259.             /* We are outputting a character with a repeat count
  2260.                greater than options->repeat_count_threshold.  */

  2262.             if (last == SINGLE)
  2263.               {
  2264.                 /* We were outputting a single string.  Terminate the
  2265.                    string.  */
  2266.                 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
  2267.               }
  2268.             if (last != START)
  2269.               obstack_grow_wstr (obstack, LCST (", "));

  2271.             /* Output the character and repeat string.  */
  2272.             obstack_grow_wstr (obstack, LCST ("'"));
  2273.             if (elem->result == wchar_iterate_ok)
  2274.               print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
  2275.                            byte_order, obstack, quote_char, &need_escape);
  2276.             else
  2277.               print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
  2278.                            byte_order, obstack, quote_char, &need_escape);
  2279.             obstack_grow_wstr (obstack, LCST ("'"));
  2280.             s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
  2281.             for (j = 0; s[j]; ++j)
  2282.               {
  2283.                 gdb_wchar_t w = gdb_btowc (s[j]);
  2284.                 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
  2285.               }
  2286.             xfree (s);
  2287.           }
  2288.           break;

  2290.         case INCOMPLETE:
  2291.           /* We are outputting an incomplete sequence.  */
  2292.           if (last == SINGLE)
  2293.             {
  2294.               /* If we were outputting a string of SINGLE characters,
  2295.                  terminate the quote.  */
  2296.               obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
  2297.             }
  2298.           if (last != START)
  2299.             obstack_grow_wstr (obstack, LCST (", "));

  2301.           /* Output the incomplete sequence string.  */
  2302.           obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
  2303.           print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
  2304.                        obstack, 0, &need_escape);
  2305.           obstack_grow_wstr (obstack, LCST (">"));

  2307.           /* We do not attempt to outupt anything after this.  */
  2308.           state = FINISH;
  2309.           break;

  2311.         case FINISH:
  2312.           /* All done.  If we were outputting a string of SINGLE
  2313.              characters, the string must be terminated.  Otherwise,
  2314.              REPEAT and INCOMPLETE are always left properly terminated.  */
  2315.           if (last == SINGLE)
  2316.             obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));

  2318.           return;
  2319.         }

  2321.       /* Get the next element and state.  */
  2322.       last = state;
  2323.       if (state != FINISH)
  2324.         {
  2325.           elem = VEC_index (converted_character_d, chars, idx++);
  2326.           switch (elem->result)
  2327.             {
  2328.             case wchar_iterate_ok:
  2329.             case wchar_iterate_invalid:
  2330.               if (elem->repeat_count > options->repeat_count_threshold)
  2331.                 state = REPEAT;
  2332.               else
  2333.                 state = SINGLE;
  2334.               break;

  2336.             case wchar_iterate_incomplete:
  2337.               state = INCOMPLETE;
  2338.               break;

  2340.             case wchar_iterate_eof:
  2341.               state = FINISH;
  2342.               break;
  2343.             }
  2344.         }
  2345.     }
  2346. }

  2348. /* Print the character string STRING, printing at most LENGTH
  2349.    characters.  LENGTH is -1 if the string is nul terminated.  TYPE is
  2350.    the type of each character.  OPTIONS holds the printing options;
  2351.    printing stops early if the number hits print_max; repeat counts
  2352.    are printed as appropriate.  Print ellipses at the end if we had to
  2353.    stop before printing LENGTH characters, or if FORCE_ELLIPSES.
  2354.    QUOTE_CHAR is the character to print at each end of the string.  If
  2355.    C_STYLE_TERMINATOR is true, and the last character is 0, then it is
  2356.    omitted.  */

  2358. void
  2359. ‌generic_printstr (struct ui_file *stream, struct type *type,
  2360.                   const gdb_byte *string, unsigned int length,
  2361.                   const char *encoding, int force_ellipses,
  2362.                   int quote_char, int c_style_terminator,
  2363.                   const struct value_print_options *options)
  2364. {
  2365.   enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
  2366.   unsigned int i;
  2367.   int width = TYPE_LENGTH (type);
  2368.   struct obstack wchar_buf, output;
  2369.   struct cleanup *cleanup;
  2370.   struct wchar_iterator *iter;
  2371.   int finished = 0;
  2372.   struct converted_character *last;
  2373.   VEC (converted_character_d) *converted_chars;

  2375.   if (length == -1)
  2376.     {
  2377.       unsigned long current_char = 1;

  2379.       for (i = 0; current_char; ++i)
  2380.         {
  2381.           QUIT;
  2382.           current_char = extract_unsigned_integer (string + i * width,
  2383.                                                    width, byte_order);
  2384.         }
  2385.       length = i;
  2386.     }

  2388.   /* If the string was not truncated due to `set print elements', and
  2389.      the last byte of it is a null, we don't print that, in
  2390.      traditional C style.  */
  2391.   if (c_style_terminator
  2392.       && !force_ellipses
  2393.       && length > 0
  2394.       && (extract_unsigned_integer (string + (length - 1) * width,
  2395.                                     width, byte_order) == 0))
  2396.     length--;

  2398.   if (length == 0)
  2399.     {
  2400.       fputs_filtered ("\"\"", stream);
  2401.       return;
  2402.     }

  2404.   /* Arrange to iterate over the characters, in wchar_t form.  */
  2405.   iter = make_wchar_iterator (string, length * width, encoding, width);
  2406.   cleanup = make_cleanup_wchar_iterator (iter);
  2407.   converted_chars = NULL;
  2408.   make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);

  2410.   /* Convert characters until the string is over or the maximum
  2411.      number of printed characters has been reached.  */
  2412.   i = 0;
  2413.   while (i < options->print_max)
  2414.     {
  2415.       int r;

  2417.       QUIT;

  2419.       /* Grab the next character and repeat count.  */
  2420.       r = count_next_character (iter, &converted_chars);

  2422.       /* If less than zero, the end of the input string was reached.  */
  2423.       if (r < 0)
  2424.         break;

  2426.       /* Otherwise, add the count to the total print count and get
  2427.          the next character.  */
  2428.       i += r;
  2429.     }

  2431.   /* Get the last element and determine if the entire string was
  2432.      processed.  */
  2433.   last = VEC_last (converted_character_d, converted_chars);
  2434.   finished = (last->result == wchar_iterate_eof);

  2436.   /* Ensure that CONVERTED_CHARS is terminated.  */
  2437.   last->result = wchar_iterate_eof;

  2439.   /* WCHAR_BUF is the obstack we use to represent the string in
  2440.      wchar_t form.  */
  2441.   obstack_init (&wchar_buf);
  2442.   make_cleanup_obstack_free (&wchar_buf);

  2444.   /* Print the output string to the obstack.  */
  2445.   print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
  2446.                                     width, byte_order, options);

  2448.   if (force_ellipses || !finished)
  2449.     obstack_grow_wstr (&wchar_buf, LCST ("..."));

  2451.   /* OUTPUT is where we collect `char's for printing.  */
  2452.   obstack_init (&output);
  2453.   make_cleanup_obstack_free (&output);

  2455.   convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
  2456.                              (gdb_byte *) obstack_base (&wchar_buf),
  2457.                              obstack_object_size (&wchar_buf),
  2458.                              sizeof (gdb_wchar_t), &output, translit_char);
  2459.   obstack_1grow (&output, '\0');

  2461.   fputs_filtered (obstack_base (&output), stream);

  2463.   do_cleanups (cleanup);
  2464. }

  2466. /* Print a string from the inferior, starting at ADDR and printing up to LEN
  2467.    characters, of WIDTH bytes a piece, to STREAM.  If LEN is -1, printing
  2468.    stops at the first null byte, otherwise printing proceeds (including null
  2469.    bytes) until either print_max or LEN characters have been printed,
  2470.    whichever is smaller.  ENCODING is the name of the string's
  2471.    encoding.  It can be NULL, in which case the target encoding is
  2472.    assumed.  */

  2474. int
  2475. ‌val_print_string (struct type *elttype, const char *encoding,
  2476.                   CORE_ADDR addr, int len,
  2477.                   struct ui_file *stream,
  2478.                   const struct value_print_options *options)
  2479. {
  2480.   int force_ellipsis = 0;        /* Force ellipsis to be printed if nonzero.  */
  2481.   int errcode;                        /* Errno returned from bad reads.  */
  2482.   int found_nul;                /* Non-zero if we found the nul char.  */
  2483.   unsigned int fetchlimit;        /* Maximum number of chars to print.  */
  2484.   int bytes_read;
  2485.   gdb_byte *buffer = NULL;        /* Dynamically growable fetch buffer.  */
  2486.   struct cleanup *old_chain = NULL;        /* Top of the old cleanup chain.  */
  2487.   struct gdbarch *gdbarch = get_type_arch (elttype);
  2488.   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
  2489.   int width = TYPE_LENGTH (elttype);

  2491.   /* First we need to figure out the limit on the number of characters we are
  2492.      going to attempt to fetch and print.  This is actually pretty simple.  If
  2493.      LEN >= zero, then the limit is the minimum of LEN and print_max.  If
  2494.      LEN is -1, then the limit is print_max.  This is true regardless of
  2495.      whether print_max is zero, UINT_MAX (unlimited), or something in between,
  2496.      because finding the null byte (or available memory) is what actually
  2497.      limits the fetch.  */

  2499.   fetchlimit = (len == -1 ? options->print_max : min (len,
  2500.                                                       options->print_max));

  2502.   errcode = read_string (addr, len, width, fetchlimit, byte_order,
  2503.                          &buffer, &bytes_read);
  2504.   old_chain = make_cleanup (xfree, buffer);

  2506.   addr += bytes_read;

  2508.   /* We now have either successfully filled the buffer to fetchlimit,
  2509.      or terminated early due to an error or finding a null char when
  2510.      LEN is -1.  */

  2512.   /* Determine found_nul by looking at the last character read.  */
  2513.   found_nul = 0;
  2514.   if (bytes_read >= width)
  2515.     found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
  2516.                                           byte_order) == 0;
  2517.   if (len == -1 && !found_nul)
  2518.     {
  2519.       gdb_byte *peekbuf;

  2521.       /* We didn't find a NUL terminator we were looking for.  Attempt
  2522.          to peek at the next character.  If not successful, or it is not
  2523.          a null byte, then force ellipsis to be printed.  */

  2525.       peekbuf = (gdb_byte *) alloca (width);

  2527.       if (target_read_memory (addr, peekbuf, width) == 0
  2528.           && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
  2529.         force_ellipsis = 1;
  2530.     }
  2531.   else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
  2532.     {
  2533.       /* Getting an error when we have a requested length, or fetching less
  2534.          than the number of characters actually requested, always make us
  2535.          print ellipsis.  */
  2536.       force_ellipsis = 1;
  2537.     }

  2539.   /* If we get an error before fetching anything, don't print a string.
  2540.      But if we fetch something and then get an error, print the string
  2541.      and then the error message.  */
  2542.   if (errcode == 0 || bytes_read > 0)
  2543.     {
  2544.       LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
  2545.                        encoding, force_ellipsis, options);
  2546.     }

  2548.   if (errcode != 0)
  2549.     {
  2550.       char *str;

  2552.       str = memory_error_message (errcode, gdbarch, addr);
  2553.       make_cleanup (xfree, str);

  2555.       fprintf_filtered (stream, "<error: ");
  2556.       fputs_filtered (str, stream);
  2557.       fprintf_filtered (stream, ">");
  2558.     }

  2560.   gdb_flush (stream);
  2561.   do_cleanups (old_chain);

  2563.   return (bytes_read / width);
  2564. }


  2567. /* The 'set input-radix' command writes to this auxiliary variable.
  2568.    If the requested radix is valid, INPUT_RADIX is updated; otherwise,
  2569.    it is left unchanged.  */

  2571. ‌static unsigned input_radix_1 = 10;

  2573. /* Validate an input or output radix setting, and make sure the user
  2574.    knows what they really did here.  Radix setting is confusing, e.g.
  2575.    setting the input radix to "10" never changes it!  */

  2577. static void
  2578. ‌set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
  2579. {
  2580.   set_input_radix_1 (from_tty, input_radix_1);
  2581. }

  2583. static void
  2584. ‌set_input_radix_1 (int from_tty, unsigned radix)
  2585. {
  2586.   /* We don't currently disallow any input radix except 0 or 1, which don't
  2587.      make any mathematical sense.  In theory, we can deal with any input
  2588.      radix greater than 1, even if we don't have unique digits for every
  2589.      value from 0 to radix-1, but in practice we lose on large radix values.
  2590.      We should either fix the lossage or restrict the radix range more.
  2591.      (FIXME).  */

  2593.   if (radix < 2)
  2594.     {
  2595.       input_radix_1 = input_radix;
  2596.       error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
  2597.              radix);
  2598.     }
  2599.   input_radix_1 = input_radix = radix;
  2600.   if (from_tty)
  2601.     {
  2602.       printf_filtered (_("Input radix now set to "
  2603.                          "decimal %u, hex %x, octal %o.\n"),
  2604.                        radix, radix, radix);
  2605.     }
  2606. }

  2608. /* The 'set output-radix' command writes to this auxiliary variable.
  2609.    If the requested radix is valid, OUTPUT_RADIX is updated,
  2610.    otherwise, it is left unchanged.  */

  2612. ‌static unsigned output_radix_1 = 10;

  2614. static void
  2615. ‌set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
  2616. {
  2617.   set_output_radix_1 (from_tty, output_radix_1);
  2618. }

  2620. static void
  2621. ‌set_output_radix_1 (int from_tty, unsigned radix)
  2622. {
  2623.   /* Validate the radix and disallow ones that we aren't prepared to
  2624.      handle correctly, leaving the radix unchanged.  */
  2625.   switch (radix)
  2626.     {
  2627.     case 16:
  2628.       user_print_options.output_format = 'x';        /* hex */
  2629.       break;
  2630.     case 10:
  2631.       user_print_options.output_format = 0;        /* decimal */
  2632.       break;
  2633.     case 8:
  2634.       user_print_options.output_format = 'o';        /* octal */
  2635.       break;
  2636.     default:
  2637.       output_radix_1 = output_radix;
  2638.       error (_("Unsupported output radix ``decimal %u''; "
  2639.                "output radix unchanged."),
  2640.              radix);
  2641.     }
  2642.   output_radix_1 = output_radix = radix;
  2643.   if (from_tty)
  2644.     {
  2645.       printf_filtered (_("Output radix now set to "
  2646.                          "decimal %u, hex %x, octal %o.\n"),
  2647.                        radix, radix, radix);
  2648.     }
  2649. }

  2651. /* Set both the input and output radix at once.  Try to set the output radix
  2652.    first, since it has the most restrictive range.  An radix that is valid as
  2653.    an output radix is also valid as an input radix.

  2655.    It may be useful to have an unusual input radix.  If the user wishes to
  2656.    set an input radix that is not valid as an output radix, he needs to use
  2657.    the 'set input-radix' command.  */

  2659. static void
  2660. ‌set_radix (char *arg, int from_tty)
  2661. {
  2662.   unsigned radix;

  2664.   radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
  2665.   set_output_radix_1 (0, radix);
  2666.   set_input_radix_1 (0, radix);
  2667.   if (from_tty)
  2668.     {
  2669.       printf_filtered (_("Input and output radices now set to "
  2670.                          "decimal %u, hex %x, octal %o.\n"),
  2671.                        radix, radix, radix);
  2672.     }
  2673. }

  2675. /* Show both the input and output radices.  */

  2677. static void
  2678. ‌show_radix (char *arg, int from_tty)
  2679. {
  2680.   if (from_tty)
  2681.     {
  2682.       if (input_radix == output_radix)
  2683.         {
  2684.           printf_filtered (_("Input and output radices set to "
  2685.                              "decimal %u, hex %x, octal %o.\n"),
  2686.                            input_radix, input_radix, input_radix);
  2687.         }
  2688.       else
  2689.         {
  2690.           printf_filtered (_("Input radix set to decimal "
  2691.                              "%u, hex %x, octal %o.\n"),
  2692.                            input_radix, input_radix, input_radix);
  2693.           printf_filtered (_("Output radix set to decimal "
  2694.                              "%u, hex %x, octal %o.\n"),
  2695.                            output_radix, output_radix, output_radix);
  2696.         }
  2697.     }
  2698. }


  2701. static void
  2702. ‌set_print (char *arg, int from_tty)
  2703. {
  2704.   printf_unfiltered (
  2705.      "\"set print\" must be followed by the name of a print subcommand.\n");
  2706.   help_list (setprintlist, "set print ", all_commands, gdb_stdout);
  2707. }

  2709. static void
  2710. ‌show_print (char *args, int from_tty)
  2711. {
  2712.   cmd_show_list (showprintlist, from_tty, "");
  2713. }

  2715. static void
  2716. ‌set_print_raw (char *arg, int from_tty)
  2717. {
  2718.   printf_unfiltered (
  2719.      "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
  2720.   help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
  2721. }

  2723. static void
  2724. ‌show_print_raw (char *args, int from_tty)
  2725. {
  2726.   cmd_show_list (showprintrawlist, from_tty, "");
  2727. }


  2730. void
  2731. ‌_initialize_valprint (void)
  2732. {
  2733.   add_prefix_cmd ("print", no_class, set_print,
  2734.                   _("Generic command for setting how things print."),
  2735.                   &setprintlist, "set print ", 0, &setlist);
  2736.   add_alias_cmd ("p", "print", no_class, 1, &setlist);
  2737.   /* Prefer set print to set prompt.  */
  2738.   add_alias_cmd ("pr", "print", no_class, 1, &setlist);

  2740.   add_prefix_cmd ("print", no_class, show_print,
  2741.                   _("Generic command for showing print settings."),
  2742.                   &showprintlist, "show print ", 0, &showlist);
  2743.   add_alias_cmd ("p", "print", no_class, 1, &showlist);
  2744.   add_alias_cmd ("pr", "print", no_class, 1, &showlist);

  2746.   add_prefix_cmd ("raw", no_class, set_print_raw,
  2747.                   _("\
  2748. Generic command for setting what things to print in \"raw\" mode."),
  2749.                   &setprintrawlist, "set print raw ", 0, &setprintlist);
  2750.   add_prefix_cmd ("raw", no_class, show_print_raw,
  2751.                   _("Generic command for showing \"print raw\" settings."),
  2752.                   &showprintrawlist, "show print raw ", 0, &showprintlist);

  2754.   add_setshow_uinteger_cmd ("elements", no_class,
  2755.                             &user_print_options.print_max, _("\
  2756. Set limit on string chars or array elements to print."), _("\
  2757. Show limit on string chars or array elements to print."), _("\
  2758. \"set print elements unlimited\" causes there to be no limit."),
  2759.                             NULL,
  2760.                             show_print_max,
  2761.                             &setprintlist, &showprintlist);

  2763.   add_setshow_boolean_cmd ("null-stop", no_class,
  2764.                            &user_print_options.stop_print_at_null, _("\
  2765. Set printing of char arrays to stop at first null char."), _("\
  2766. Show printing of char arrays to stop at first null char."), NULL,
  2767.                            NULL,
  2768.                            show_stop_print_at_null,
  2769.                            &setprintlist, &showprintlist);

  2771.   add_setshow_uinteger_cmd ("repeats", no_class,
  2772.                             &user_print_options.repeat_count_threshold, _("\
  2773. Set threshold for repeated print elements."), _("\
  2774. Show threshold for repeated print elements."), _("\
  2775. \"set print repeats unlimited\" causes all elements to be individually printed."),
  2776.                             NULL,
  2777.                             show_repeat_count_threshold,
  2778.                             &setprintlist, &showprintlist);

  2780.   add_setshow_boolean_cmd ("pretty", class_support,
  2781.                            &user_print_options.prettyformat_structs, _("\
  2782. Set pretty formatting of structures."), _("\
  2783. Show pretty formatting of structures."), NULL,
  2784.                            NULL,
  2785.                            show_prettyformat_structs,
  2786.                            &setprintlist, &showprintlist);

  2788.   add_setshow_boolean_cmd ("union", class_support,
  2789.                            &user_print_options.unionprint, _("\
  2790. Set printing of unions interior to structures."), _("\
  2791. Show printing of unions interior to structures."), NULL,
  2792.                            NULL,
  2793.                            show_unionprint,
  2794.                            &setprintlist, &showprintlist);

  2796.   add_setshow_boolean_cmd ("array", class_support,
  2797.                            &user_print_options.prettyformat_arrays, _("\
  2798. Set pretty formatting of arrays."), _("\
  2799. Show pretty formatting of arrays."), NULL,
  2800.                            NULL,
  2801.                            show_prettyformat_arrays,
  2802.                            &setprintlist, &showprintlist);

  2804.   add_setshow_boolean_cmd ("address", class_support,
  2805.                            &user_print_options.addressprint, _("\
  2806. Set printing of addresses."), _("\
  2807. Show printing of addresses."), NULL,
  2808.                            NULL,
  2809.                            show_addressprint,
  2810.                            &setprintlist, &showprintlist);

  2812.   add_setshow_boolean_cmd ("symbol", class_support,
  2813.                            &user_print_options.symbol_print, _("\
  2814. Set printing of symbol names when printing pointers."), _("\
  2815. Show printing of symbol names when printing pointers."),
  2816.                            NULL, NULL,
  2817.                            show_symbol_print,
  2818.                            &setprintlist, &showprintlist);

  2820.   add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
  2821.                              _("\
  2822. Set default input radix for entering numbers."), _("\
  2823. Show default input radix for entering numbers."), NULL,
  2824.                              set_input_radix,
  2825.                              show_input_radix,
  2826.                              &setlist, &showlist);

  2828.   add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
  2829.                              _("\
  2830. Set default output radix for printing of values."), _("\
  2831. Show default output radix for printing of values."), NULL,
  2832.                              set_output_radix,
  2833.                              show_output_radix,
  2834.                              &setlist, &showlist);

  2836.   /* The "set radix" and "show radix" commands are special in that
  2837.      they are like normal set and show commands but allow two normally
  2838.      independent variables to be either set or shown with a single
  2839.      command.  So the usual deprecated_add_set_cmd() and [deleted]
  2840.      add_show_from_set() commands aren't really appropriate.  */
  2841.   /* FIXME: i18n: With the new add_setshow_integer command, that is no
  2842.      longer true - show can display anything.  */
  2843.   add_cmd ("radix", class_support, set_radix, _("\
  2844. Set default input and output number radices.\n\
  2845. Use 'set input-radix' or 'set output-radix' to independently set each.\n\
  2846. Without an argument, sets both radices back to the default value of 10."),
  2847.            &setlist);
  2848.   add_cmd ("radix", class_support, show_radix, _("\
  2849. Show the default input and output number radices.\n\
  2850. Use 'show input-radix' or 'show output-radix' to independently show each."),
  2851.            &showlist);

  2853.   add_setshow_boolean_cmd ("array-indexes", class_support,
  2854.                            &user_print_options.print_array_indexes, _("\
  2855. Set printing of array indexes."), _("\
  2856. Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
  2857.                            &setprintlist, &showprintlist);
  2858. }