mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
374 lines
11 KiB
C
374 lines
11 KiB
C
/* 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 */
|
||
f_yyerror, /* 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 */
|
||
|
||
/* 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);
|
||
}
|