diff options
Diffstat (limited to 'gdb/p-lang.c')
| -rw-r--r-- | gdb/p-lang.c | 465 |
1 files changed, 0 insertions, 465 deletions
diff --git a/gdb/p-lang.c b/gdb/p-lang.c deleted file mode 100644 index b5ad5801aab..00000000000 --- a/gdb/p-lang.c +++ /dev/null @@ -1,465 +0,0 @@ -/* Pascal language support routines for GDB, the GNU debugger. - Copyright 2000 Free Software Foundation, Inc. - - This file is part of GDB. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* This file is derived from c-lang.c */ - -#include "defs.h" -#include "symtab.h" -#include "gdbtypes.h" -#include "expression.h" -#include "parser-defs.h" -#include "language.h" -#include "p-lang.h" -#include "valprint.h" -#include <ctype.h> - -extern void _initialize_pascal_language (void); - - -/* Determines if type TYPE is a pascal string type. - Returns 1 if the type is a known pascal type - This function is used by p-valprint.c code to allow better string display. - If it is a pascal string type, then it also sets info needed - to get the length and the data of the string - length_pos, length_size and string_pos are given in bytes. - char_size gives the element size in bytes. - FIXME: if the position or the size of these fields - are not multiple of TARGET_CHAR_BIT then the results are wrong - but this does not happen for Free Pascal nor for GPC. */ -int -is_pascal_string_type (struct type *type,int *length_pos, - int * length_size, int *string_pos, int *char_size) -{ - if (TYPE_CODE (type) == TYPE_CODE_STRUCT) - { - /* Old Borland type pascal strings from Free Pascal Compiler. */ - /* Two fields: length and st. */ - if (TYPE_NFIELDS (type) == 2 - && strcmp (TYPE_FIELDS (type)[0].name, "length") == 0 - && strcmp (TYPE_FIELDS (type)[1].name, "st") == 0) - { - *length_pos = TYPE_FIELD_BITPOS (type, 0) / TARGET_CHAR_BIT; - *length_size = TYPE_FIELD_TYPE (type, 0)->length; - *string_pos = TYPE_FIELD_BITPOS (type, 1) / TARGET_CHAR_BIT; - *char_size = 1; - return 1; - }; - /* GNU pascal strings. */ - /* Three fields: Capacity, length and schema$ or _p_schema. */ - if (TYPE_NFIELDS (type) == 3 - && strcmp (TYPE_FIELDS (type)[0].name, "Capacity") == 0 - && strcmp (TYPE_FIELDS (type)[1].name, "length") == 0) - { - *length_pos = TYPE_FIELD_BITPOS (type, 1) / TARGET_CHAR_BIT; - *length_size = TYPE_FIELD_TYPE (type, 1)->length; - *string_pos = TYPE_FIELD_BITPOS (type, 2) / TARGET_CHAR_BIT; - /* FIXME: how can I detect wide chars in GPC ?? */ - *char_size = 1; - return 1; - }; - } - return 0; -} - -static void pascal_one_char (int, struct ui_file *, int *); - -/* Print the character C on STREAM as part of the contents of a literal - string. - In_quotes is reset to 0 if a char is written with #4 notation */ - -static void -pascal_one_char (register int c, struct ui_file *stream, int *in_quotes) -{ - - c &= 0xFF; /* Avoid sign bit follies */ - - if ((c == '\'') || (PRINT_LITERAL_FORM (c))) - { - if (!(*in_quotes)) - fputs_filtered ("'", stream); - *in_quotes = 1; - if (c == '\'') - { - fputs_filtered ("''", stream); - } - else - fprintf_filtered (stream, "%c", c); - } - else - { - if (*in_quotes) - fputs_filtered ("'", stream); - *in_quotes = 0; - fprintf_filtered (stream, "#%d", (unsigned int) c); - } -} - -static void pascal_emit_char (int c, struct ui_file *stream, int quoter); - -/* Print the character C on STREAM as part of the contents of a literal - string whose delimiter is QUOTER. Note that that format for printing - characters and strings is language specific. */ - -static void -pascal_emit_char (register int c, struct ui_file *stream, int quoter) -{ - int in_quotes = 0; - pascal_one_char (c, stream, &in_quotes); - if (in_quotes) - fputs_filtered ("'", stream); -} - -void -pascal_printchar (int c, struct ui_file *stream) -{ - int in_quotes = 0; - pascal_one_char (c, stream, &in_quotes); - if (in_quotes) - fputs_filtered ("'", stream); -} - -/* Print the character string STRING, printing at most LENGTH characters. - Printing stops early if the number hits print_max; repeat counts - are printed as appropriate. Print ellipses at the end if we - had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. */ - -void -pascal_printstr (struct ui_file *stream, char *string, unsigned int length, - int width, int force_ellipses) -{ - register unsigned int i; - unsigned int things_printed = 0; - int in_quotes = 0; - int need_comma = 0; - extern int inspect_it; - - /* If the string was not truncated due to `set print elements', and - the last byte of it is a null, we don't print that, in traditional C - style. */ - if ((!force_ellipses) && length > 0 && string[length - 1] == '\0') - length--; - - if (length == 0) - { - fputs_filtered ("''", stream); - return; - } - - for (i = 0; i < length && things_printed < print_max; ++i) - { - /* Position of the character we are examining - to see whether it is repeated. */ - unsigned int rep1; - /* Number of repetitions we have detected so far. */ - unsigned int reps; - - QUIT; - - if (need_comma) - { - fputs_filtered (", ", stream); - need_comma = 0; - } - - rep1 = i + 1; - reps = 1; - while (rep1 < length && string[rep1] == string[i]) - { - ++rep1; - ++reps; - } - - if (reps > repeat_count_threshold) - { - if (in_quotes) - { - if (inspect_it) - fputs_filtered ("\\', ", stream); - else - fputs_filtered ("', ", stream); - in_quotes = 0; - } - pascal_printchar (string[i], stream); - fprintf_filtered (stream, " <repeats %u times>", reps); - i = rep1 - 1; - things_printed += repeat_count_threshold; - need_comma = 1; - } - else - { - int c = string[i]; - if ((!in_quotes) && (PRINT_LITERAL_FORM (c))) - { - if (inspect_it) - fputs_filtered ("\\'", stream); - else - fputs_filtered ("'", stream); - in_quotes = 1; - } - pascal_one_char (c, stream, &in_quotes); - ++things_printed; - } - } - - /* Terminate the quotes if necessary. */ - if (in_quotes) - { - if (inspect_it) - fputs_filtered ("\\'", stream); - else - fputs_filtered ("'", stream); - } - - if (force_ellipses || i < length) - fputs_filtered ("...", stream); -} - -/* Create a fundamental Pascal type using default reasonable for the current - target machine. - - Some object/debugging file formats (DWARF version 1, COFF, etc) do not - define fundamental types such as "int" or "double". Others (stabs or - DWARF version 2, etc) do define fundamental types. For the formats which - don't provide fundamental types, gdb can create such types using this - function. - - FIXME: Some compilers distinguish explicitly signed integral types - (signed short, signed int, signed long) from "regular" integral types - (short, int, long) in the debugging information. There is some dis- - agreement as to how useful this feature is. In particular, gcc does - not support this. Also, only some debugging formats allow the - distinction to be passed on to a debugger. For now, we always just - use "short", "int", or "long" as the type name, for both the implicit - and explicitly signed types. This also makes life easier for the - gdb test suite since we don't have to account for the differences - in output depending upon what the compiler and debugging format - support. We will probably have to re-examine the issue when gdb - starts taking it's fundamental type information directly from the - debugging information supplied by the compiler. fnf@cygnus.com */ - -/* Note there might be some discussion about the choosen correspondance - because it mainly reflects Free Pascal Compiler setup for now PM */ - - -struct type * -pascal_create_fundamental_type (struct objfile *objfile, int typeid) -{ - register struct type *type = NULL; - - switch (typeid) - { - default: - /* FIXME: For now, if we are asked to produce a type not in this - language, create the equivalent of a C integer type with the - name "<?type?>". When all the dust settles from the type - reconstruction work, this should probably become an error. */ - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, "<?type?>", objfile); - warning ("internal error: no Pascal fundamental type %d", typeid); - break; - case FT_VOID: - type = init_type (TYPE_CODE_VOID, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, "void", objfile); - break; - case FT_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, "char", objfile); - break; - case FT_SIGNED_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - 0, "shortint", objfile); - break; - case FT_UNSIGNED_CHAR: - type = init_type (TYPE_CODE_INT, - TARGET_CHAR_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "byte", objfile); - break; - case FT_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - 0, "integer", objfile); - break; - case FT_SIGNED_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - 0, "integer", objfile); /* FIXME-fnf */ - break; - case FT_UNSIGNED_SHORT: - type = init_type (TYPE_CODE_INT, - TARGET_SHORT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "word", objfile); - break; - case FT_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, "longint", objfile); - break; - case FT_SIGNED_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - 0, "longint", objfile); /* FIXME -fnf */ - break; - case FT_UNSIGNED_INTEGER: - type = init_type (TYPE_CODE_INT, - TARGET_INT_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "cardinal", objfile); - break; - case FT_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - 0, "long", objfile); - break; - case FT_SIGNED_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - 0, "long", objfile); /* FIXME -fnf */ - break; - case FT_UNSIGNED_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned long", objfile); - break; - case FT_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - 0, "long long", objfile); - break; - case FT_SIGNED_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - 0, "signed long long", objfile); - break; - case FT_UNSIGNED_LONG_LONG: - type = init_type (TYPE_CODE_INT, - TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, - TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); - break; - case FT_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_FLOAT_BIT / TARGET_CHAR_BIT, - 0, "float", objfile); - break; - case FT_DBL_PREC_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, "double", objfile); - break; - case FT_EXT_PREC_FLOAT: - type = init_type (TYPE_CODE_FLT, - TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, - 0, "extended", objfile); - break; - } - return (type); -} - - -/* Table mapping opcodes into strings for printing operators - and precedences of the operators. */ - -const struct op_print pascal_op_print_tab[] = -{ - {",", BINOP_COMMA, PREC_COMMA, 0}, - {":=", BINOP_ASSIGN, PREC_ASSIGN, 1}, - {"or", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0}, - {"xor", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0}, - {"and", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0}, - {"=", BINOP_EQUAL, PREC_EQUAL, 0}, - {"<>", BINOP_NOTEQUAL, PREC_EQUAL, 0}, - {"<=", BINOP_LEQ, PREC_ORDER, 0}, - {">=", BINOP_GEQ, PREC_ORDER, 0}, - {">", BINOP_GTR, PREC_ORDER, 0}, - {"<", BINOP_LESS, PREC_ORDER, 0}, - {"shr", BINOP_RSH, PREC_SHIFT, 0}, - {"shl", BINOP_LSH, PREC_SHIFT, 0}, - {"+", BINOP_ADD, PREC_ADD, 0}, - {"-", BINOP_SUB, PREC_ADD, 0}, - {"*", BINOP_MUL, PREC_MUL, 0}, - {"/", BINOP_DIV, PREC_MUL, 0}, - {"div", BINOP_INTDIV, PREC_MUL, 0}, - {"mod", BINOP_REM, PREC_MUL, 0}, - {"@", BINOP_REPEAT, PREC_REPEAT, 0}, - {"-", UNOP_NEG, PREC_PREFIX, 0}, - {"not", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, - {"^", UNOP_IND, PREC_SUFFIX, 1}, - {"@", UNOP_ADDR, PREC_PREFIX, 0}, - {"sizeof", UNOP_SIZEOF, PREC_PREFIX, 0}, - {NULL, 0, 0, 0} -}; - -struct type **const /* CONST_PTR v 4.17 */ (pascal_builtin_types[]) = -{ - &builtin_type_int, - &builtin_type_long, - &builtin_type_short, - &builtin_type_char, - &builtin_type_float, - &builtin_type_double, - &builtin_type_void, - &builtin_type_long_long, - &builtin_type_signed_char, - &builtin_type_unsigned_char, - &builtin_type_unsigned_short, - &builtin_type_unsigned_int, - &builtin_type_unsigned_long, - &builtin_type_unsigned_long_long, - &builtin_type_long_double, - &builtin_type_complex, - &builtin_type_double_complex, - 0 -}; - -const struct language_defn pascal_language_defn = -{ - "pascal", /* Language name */ - language_pascal, - pascal_builtin_types, - range_check_on, - type_check_on, - case_sensitive_on, - pascal_parse, - pascal_error, - evaluate_subexp_standard, - pascal_printchar, /* Print a character constant */ - pascal_printstr, /* Function to print string constant */ - pascal_emit_char, /* Print a single char */ - pascal_create_fundamental_type, /* Create fundamental type in this language */ - pascal_print_type, /* Print a type using appropriate syntax */ - pascal_val_print, /* Print a value using appropriate syntax */ - pascal_value_print, /* Print a top-level value */ - {"", "%", "b", ""}, /* Binary format info */ - {"0%lo", "0", "o", ""}, /* Octal format info */ - {"%ld", "", "d", ""}, /* Decimal format info */ - {"$%lx", "$", "x", ""}, /* Hex format info */ - pascal_op_print_tab, /* expression operators for printing */ - 1, /* c-style arrays */ - 0, /* String lower bound */ - &builtin_type_char, /* Type of string elements */ - LANG_MAGIC -}; - -void -_initialize_pascal_language (void) -{ - add_language (&pascal_language_defn); -} |