| /* Fortran language support routines for GDB, the GNU debugger. |
| |
| Copyright (C) 1993-2018 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 "symtab.h" |
| #include "gdbtypes.h" |
| #include "expression.h" |
| #include "parser-defs.h" |
| #include "language.h" |
| #include "varobj.h" |
| #include "f-lang.h" |
| #include "valprint.h" |
| #include "value.h" |
| #include "cp-support.h" |
| #include "charset.h" |
| #include "c-lang.h" |
| |
| |
| /* Local functions */ |
| |
| 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, OP_NULL, PREC_REPEAT, 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 const 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 void |
| f_collect_symbol_completion_matches (completion_tracker &tracker, |
| complete_symbol_mode mode, |
| symbol_name_match_type compare_name, |
| const char *text, const char *word, |
| enum type_code code) |
| { |
| default_collect_symbol_completion_matches_break_on (tracker, mode, |
| compare_name, |
| text, word, ":", code); |
| } |
| |
| static const char *f_extensions[] = |
| { |
| ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP", |
| ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08", |
| NULL |
| }; |
| |
| extern const struct language_defn f_language_defn = |
| { |
| "fortran", |
| "Fortran", |
| language_fortran, |
| range_check_on, |
| case_sensitive_off, |
| array_column_major, |
| macro_expansion_no, |
| f_extensions, |
| &exp_descriptor_standard, |
| f_parse, /* parser */ |
| 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 */ |
| false, /* la_store_sym_names_in_linkage_form_p */ |
| cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
| basic_lookup_transparent_type,/* lookup_transparent_type */ |
| |
| /* We could support demangling here to provide module namespaces |
| also for inferiors with only minimal symbol table (ELF symbols). |
| Just the mangling standard is not standardized across compilers |
| and there is no DW_AT_producer available for inferiors with only |
| the ELF symbols to check the mangling kind. */ |
| NULL, /* Language specific symbol demangler */ |
| NULL, |
| 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_collect_symbol_completion_matches, |
| f_language_arch_info, |
| default_print_array_index, |
| default_pass_by_reference, |
| default_get_string, |
| c_watch_location_expression, |
| NULL, /* la_get_symbol_name_matcher */ |
| iterate_over_symbols, |
| default_search_name_hash, |
| &default_varobj_ops, |
| NULL, |
| NULL, |
| 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, TARGET_CHAR_BIT, "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", gdbarch_float_format (gdbarch)); |
| builtin_f_type->builtin_real_s8 |
| = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
| "real*8", gdbarch_double_format (gdbarch)); |
| builtin_f_type->builtin_real_s16 |
| = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
| "real*16", gdbarch_long_double_format (gdbarch)); |
| |
| 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 (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data); |
| } |
| |
| void |
| _initialize_f_language (void) |
| { |
| f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
| } |