/* Fortran language support routines for GDB, the GNU debugger. Copyright (C) 1993-2013 Free Software Foundation, Inc. Contributed by Motorola. Adapted from the C parser by Farooq Butt (fmbutt@engage.sps.mot.com). 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "gdb_string.h" #include "symtab.h" #include "gdbtypes.h" #include "expression.h" #include "parser-defs.h" #include "language.h" #include "f-lang.h" #include "valprint.h" #include "value.h" #include "cp-support.h" #include "charset.h" #include "c-lang.h" /* Local functions */ extern void _initialize_f_language (void); static void f_printchar (int c, struct type *type, struct ui_file * stream); static void f_emit_char (int c, struct type *type, struct ui_file * stream, int quoter); /* Return the encoding that should be used for the character type TYPE. */ static const char * f_get_encoding (struct type *type) { const char *encoding; switch (TYPE_LENGTH (type)) { case 1: encoding = target_charset (get_type_arch (type)); break; case 4: if (gdbarch_byte_order (get_type_arch (type)) == BFD_ENDIAN_BIG) encoding = "UTF-32BE"; else encoding = "UTF-32LE"; break; default: error (_("unrecognized character type")); } return encoding; } /* 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. FIXME: This is a copy of the same function from c-exp.y. It should be replaced with a true F77 version. */ static void f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) { const char *encoding = f_get_encoding (type); generic_emit_char (c, type, stream, quoter, encoding); } /* Implementation of la_printchar. */ static void f_printchar (int c, struct type *type, struct ui_file *stream) { fputs_filtered ("'", stream); LA_EMIT_CHAR (c, type, stream, '\''); 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. FIXME: This is a copy of the same function from c-exp.y. It should be replaced with a true F77 version. */ static void f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string, unsigned int length, const char *encoding, int force_ellipses, const struct value_print_options *options) { const char *type_encoding = f_get_encoding (type); if (TYPE_LENGTH (type) == 4) fputs_filtered ("4_", stream); if (!encoding || !*encoding) encoding = type_encoding; generic_printstr (stream, type, string, length, encoding, force_ellipses, '\'', 0, options); } /* Table of operators and their precedences for printing expressions. */ static const struct op_print f_op_print_tab[] = { {"+", BINOP_ADD, PREC_ADD, 0}, {"+", UNOP_PLUS, PREC_PREFIX, 0}, {"-", BINOP_SUB, PREC_ADD, 0}, {"-", UNOP_NEG, PREC_PREFIX, 0}, {"*", BINOP_MUL, PREC_MUL, 0}, {"/", BINOP_DIV, PREC_MUL, 0}, {"DIV", BINOP_INTDIV, PREC_MUL, 0}, {"MOD", BINOP_REM, PREC_MUL, 0}, {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, {".LE.", BINOP_LEQ, PREC_ORDER, 0}, {".GE.", BINOP_GEQ, PREC_ORDER, 0}, {".GT.", BINOP_GTR, PREC_ORDER, 0}, {".LT.", BINOP_LESS, PREC_ORDER, 0}, {"**", UNOP_IND, PREC_PREFIX, 0}, {"@", BINOP_REPEAT, PREC_REPEAT, 0}, {NULL, 0, 0, 0} }; enum f_primitive_types { f_primitive_type_character, f_primitive_type_logical, f_primitive_type_logical_s1, f_primitive_type_logical_s2, f_primitive_type_logical_s8, f_primitive_type_integer, f_primitive_type_integer_s2, f_primitive_type_real, f_primitive_type_real_s8, f_primitive_type_real_s16, f_primitive_type_complex_s8, f_primitive_type_complex_s16, f_primitive_type_void, nr_f_primitive_types }; static void f_language_arch_info (struct gdbarch *gdbarch, struct language_arch_info *lai) { const struct builtin_f_type *builtin = builtin_f_type (gdbarch); lai->string_char_type = builtin->builtin_character; lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, struct type *); lai->primitive_type_vector [f_primitive_type_character] = builtin->builtin_character; lai->primitive_type_vector [f_primitive_type_logical] = builtin->builtin_logical; lai->primitive_type_vector [f_primitive_type_logical_s1] = builtin->builtin_logical_s1; lai->primitive_type_vector [f_primitive_type_logical_s2] = builtin->builtin_logical_s2; lai->primitive_type_vector [f_primitive_type_logical_s8] = builtin->builtin_logical_s8; lai->primitive_type_vector [f_primitive_type_real] = builtin->builtin_real; lai->primitive_type_vector [f_primitive_type_real_s8] = builtin->builtin_real_s8; lai->primitive_type_vector [f_primitive_type_real_s16] = builtin->builtin_real_s16; lai->primitive_type_vector [f_primitive_type_complex_s8] = builtin->builtin_complex_s8; lai->primitive_type_vector [f_primitive_type_complex_s16] = builtin->builtin_complex_s16; lai->primitive_type_vector [f_primitive_type_void] = builtin->builtin_void; lai->bool_type_symbol = "logical"; lai->bool_type_default = builtin->builtin_logical_s2; } /* Remove the modules separator :: from the default break list. */ static char * f_word_break_characters (void) { static char *retval; if (!retval) { char *s; retval = xstrdup (default_word_break_characters ()); s = strchr (retval, ':'); if (s) { char *last_char = &s[strlen (s) - 1]; *s = *last_char; *last_char = 0; } } return retval; } /* Consider the modules separator :: as a valid symbol name character class. */ static VEC (char_ptr) * f_make_symbol_completion_list (char *text, char *word, enum type_code code) { return default_make_symbol_completion_list_break_on (text, word, ":", code); } const struct language_defn f_language_defn = { "fortran", language_fortran, range_check_on, case_sensitive_off, array_column_major, macro_expansion_no, &exp_descriptor_standard, f_parse, /* parser */ f_error, /* parser error function */ null_post_parser, f_printchar, /* Print character constant */ f_printstr, /* function to print string constant */ f_emit_char, /* Function to print a single character */ f_print_type, /* Print a type using appropriate syntax */ default_print_typedef, /* Print a typedef using appropriate syntax */ f_val_print, /* Print a value using appropriate syntax */ c_value_print, /* FIXME */ default_read_var_value, /* la_read_var_value */ NULL, /* Language specific skip_trampoline */ NULL, /* name_of_this */ cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ basic_lookup_transparent_type,/* lookup_transparent_type */ NULL, /* Language specific symbol demangler */ NULL, /* Language specific class_name_from_physname */ f_op_print_tab, /* expression operators for printing */ 0, /* arrays are first-class (not c-style) */ 1, /* String lower bound */ f_word_break_characters, f_make_symbol_completion_list, f_language_arch_info, default_print_array_index, default_pass_by_reference, default_get_string, NULL, /* la_get_symbol_name_cmp */ iterate_over_symbols, LANG_MAGIC }; static void * build_fortran_types (struct gdbarch *gdbarch) { struct builtin_f_type *builtin_f_type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); builtin_f_type->builtin_void = arch_type (gdbarch, TYPE_CODE_VOID, 1, "VOID"); builtin_f_type->builtin_character = arch_integer_type (gdbarch, TARGET_CHAR_BIT, 0, "character"); builtin_f_type->builtin_logical_s1 = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1"); builtin_f_type->builtin_integer_s2 = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0, "integer*2"); builtin_f_type->builtin_logical_s2 = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1, "logical*2"); builtin_f_type->builtin_logical_s8 = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1, "logical*8"); builtin_f_type->builtin_integer = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0, "integer"); builtin_f_type->builtin_logical = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1, "logical*4"); builtin_f_type->builtin_real = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), "real", NULL); builtin_f_type->builtin_real_s8 = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), "real*8", NULL); builtin_f_type->builtin_real_s16 = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), "real*16", NULL); builtin_f_type->builtin_complex_s8 = arch_complex_type (gdbarch, "complex*8", builtin_f_type->builtin_real); builtin_f_type->builtin_complex_s16 = arch_complex_type (gdbarch, "complex*16", builtin_f_type->builtin_real_s8); builtin_f_type->builtin_complex_s32 = arch_complex_type (gdbarch, "complex*32", builtin_f_type->builtin_real_s16); return builtin_f_type; } static struct gdbarch_data *f_type_data; const struct builtin_f_type * builtin_f_type (struct gdbarch *gdbarch) { return gdbarch_data (gdbarch, f_type_data); } void _initialize_f_language (void) { f_type_data = gdbarch_data_register_post_init (build_fortran_types); add_language (&f_language_defn); }