1/* Fortran language support definitions for GDB, the GNU debugger. 2 3 Copyright (C) 1992-2020 Free Software Foundation, Inc. 4 5 Contributed by Motorola. Adapted from the C definitions by Farooq Butt 6 (fmbutt@engage.sps.mot.com). 7 8 This file is part of GDB. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 22 23#ifndef F_LANG_H 24#define F_LANG_H 25 26struct type_print_options; 27struct parser_state; 28 29extern int f_parse (struct parser_state *); 30 31/* Implement the la_print_typedef language method for Fortran. */ 32 33extern void f_print_typedef (struct type *type, struct symbol *new_symbol, 34 struct ui_file *stream); 35 36extern void f_print_type (struct type *, const char *, struct ui_file *, int, 37 int, const struct type_print_options *); 38 39/* Implement la_value_print_inner for Fortran. */ 40 41extern void f_value_print_inner (struct value *val, struct ui_file *stream, 42 int recurse, 43 const struct value_print_options *options); 44 45/* Language-specific data structures */ 46 47/* A common block. */ 48 49struct common_block 50{ 51 /* The number of entries in the block. */ 52 size_t n_entries; 53 54 /* The contents of the block, allocated using the struct hack. All 55 pointers in the array are non-NULL. */ 56 struct symbol *contents[1]; 57}; 58 59extern LONGEST f77_get_upperbound (struct type *); 60 61extern LONGEST f77_get_lowerbound (struct type *); 62 63extern void f77_get_dynamic_array_length (struct type *); 64 65extern int calc_f77_array_dims (struct type *); 66 67 68/* Fortran (F77) types */ 69 70struct builtin_f_type 71{ 72 struct type *builtin_character; 73 struct type *builtin_integer; 74 struct type *builtin_integer_s2; 75 struct type *builtin_integer_s8; 76 struct type *builtin_logical; 77 struct type *builtin_logical_s1; 78 struct type *builtin_logical_s2; 79 struct type *builtin_logical_s8; 80 struct type *builtin_real; 81 struct type *builtin_real_s8; 82 struct type *builtin_real_s16; 83 struct type *builtin_complex_s8; 84 struct type *builtin_complex_s16; 85 struct type *builtin_complex_s32; 86 struct type *builtin_void; 87}; 88 89/* Return the Fortran type table for the specified architecture. */ 90extern const struct builtin_f_type *builtin_f_type (struct gdbarch *gdbarch); 91 92/* Ensures that function argument VALUE is in the appropriate form to 93 pass to a Fortran function. Returns a possibly new value that should 94 be used instead of VALUE. 95 96 When IS_ARTIFICIAL is true this indicates an artificial argument, 97 e.g. hidden string lengths which the GNU Fortran argument passing 98 convention specifies as being passed by value. 99 100 When IS_ARTIFICIAL is false, the argument is passed by pointer. If the 101 value is already in target memory then return a value that is a pointer 102 to VALUE. If VALUE is not in memory (e.g. an integer literal), allocate 103 space in the target, copy VALUE in, and return a pointer to the in 104 memory copy. */ 105 106extern struct value *fortran_argument_convert (struct value *value, 107 bool is_artificial); 108 109/* Ensures that function argument TYPE is appropriate to inform the debugger 110 that ARG should be passed as a pointer. Returns the potentially updated 111 argument type. 112 113 If ARG is of type pointer then the type of ARG is returned, otherwise 114 TYPE is returned untouched. 115 116 This function exists to augment the types of Fortran function call 117 parameters to be pointers to the reported value, when the corresponding ARG 118 has also been wrapped in a pointer (by fortran_argument_convert). This 119 informs the debugger that these arguments should be passed as a pointer 120 rather than as the pointed to type. */ 121 122extern struct type *fortran_preserve_arg_pointer (struct value *arg, 123 struct type *type); 124 125#endif /* F_LANG_H */ 126