/* Fortran language support routines for GDB, the GNU debugger.
- Copyright (C) 1993-2017 Free Software Foundation, Inc.
+ Copyright (C) 1993-2019 Free Software Foundation, Inc.
Contributed by Motorola. Adapted from the C parser by Farooq Butt
(fmbutt@engage.sps.mot.com).
#include "parser-defs.h"
#include "language.h"
#include "varobj.h"
+#include "gdbcore.h"
#include "f-lang.h"
#include "valprint.h"
#include "value.h"
#include "cp-support.h"
#include "charset.h"
#include "c-lang.h"
+#include "target-float.h"
+#include <math.h>
/* Local functions */
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);
}
+/* Special expression evaluation cases for Fortran. */
+struct value *
+evaluate_subexp_f (struct type *expect_type, struct expression *exp,
+ int *pos, enum noside noside)
+{
+ struct value *arg1 = NULL;
+ enum exp_opcode op;
+ int pc;
+ struct type *type;
+
+ pc = *pos;
+ *pos += 1;
+ op = exp->elts[pc].opcode;
+
+ switch (op)
+ {
+ default:
+ *pos -= 1;
+ return evaluate_subexp_standard (expect_type, exp, pos, noside);
+
+ case UNOP_ABS:
+ arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside);
+ if (noside == EVAL_SKIP)
+ return eval_skip_value (exp);
+ type = value_type (arg1);
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_FLT:
+ {
+ double d
+ = fabs (target_float_to_host_double (value_contents (arg1),
+ value_type (arg1)));
+ return value_from_host_double (type, d);
+ }
+ case TYPE_CODE_INT:
+ {
+ LONGEST l = value_as_long (arg1);
+ l = llabs (l);
+ return value_from_longest (type, l);
+ }
+ }
+ error (_("ABS of type %s not supported"), TYPE_SAFE_NAME (type));
+
+ case UNOP_KIND:
+ arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS);
+ type = value_type (arg1);
+
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ case TYPE_CODE_MODULE:
+ case TYPE_CODE_FUNC:
+ error (_("argument to kind must be an intrinsic type"));
+ }
+
+ if (!TYPE_TARGET_TYPE (type))
+ return value_from_longest (builtin_type (exp->gdbarch)->builtin_int,
+ TYPE_LENGTH (type));
+ return value_from_longest (builtin_type (exp->gdbarch)->builtin_int,
+ TYPE_LENGTH (TYPE_TARGET_TYPE(type)));
+ }
+
+ /* Should be unreachable. */
+ return nullptr;
+}
+
static const char *f_extensions[] =
{
".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP",
NULL
};
+/* Expression processing for Fortran. */
+static const struct exp_descriptor exp_descriptor_f =
+{
+ print_subexp_standard,
+ operator_length_standard,
+ operator_check_standard,
+ op_name_standard,
+ dump_subexp_body_standard,
+ evaluate_subexp_f
+};
+
extern const struct language_defn f_language_defn =
{
"fortran",
array_column_major,
macro_expansion_no,
f_extensions,
- &exp_descriptor_standard,
+ &exp_descriptor_f,
f_parse, /* parser */
- f_yyerror, /* parser error function */
null_post_parser,
f_printchar, /* Print character constant */
f_printstr, /* function to print string constant */
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 */
default_pass_by_reference,
default_get_string,
c_watch_location_expression,
- NULL, /* la_get_symbol_name_cmp */
+ NULL, /* la_get_symbol_name_matcher */
iterate_over_symbols,
default_search_name_hash,
&default_varobj_ops,
NULL,
- NULL,
- LANG_MAGIC
+ NULL
};
static 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");
+ = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character");
builtin_f_type->builtin_logical_s1
= arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1");
= arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0,
"integer*2");
+ builtin_f_type->builtin_integer_s8
+ = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), 0,
+ "integer*8");
+
builtin_f_type->builtin_logical_s2
= arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1,
"logical*2");
{
f_type_data = gdbarch_data_register_post_init (build_fortran_types);
}
+
+/* See f-lang.h. */
+
+struct value *
+fortran_argument_convert (struct value *value, bool is_artificial)
+{
+ if (!is_artificial)
+ {
+ /* If the value is not in the inferior e.g. registers values,
+ convenience variables and user input. */
+ if (VALUE_LVAL (value) != lval_memory)
+ {
+ struct type *type = value_type (value);
+ const int length = TYPE_LENGTH (type);
+ const CORE_ADDR addr
+ = value_as_long (value_allocate_space_in_inferior (length));
+ write_memory (addr, value_contents (value), length);
+ struct value *val
+ = value_from_contents_and_address (type, value_contents (value),
+ addr);
+ return value_addr (val);
+ }
+ else
+ return value_addr (value); /* Program variables, e.g. arrays. */
+ }
+ return value;
+}
+
+/* See f-lang.h. */
+
+struct type *
+fortran_preserve_arg_pointer (struct value *arg, struct type *type)
+{
+ if (TYPE_CODE (value_type (arg)) == TYPE_CODE_PTR)
+ return value_type (arg);
+ return type;
+}
projects / deliverable / binutils-gdb.git / blobdiff