/* Go language support routines for GDB, the GNU debugger.
- Copyright (C) 2012-2016 Free Software Foundation, Inc.
+ Copyright (C) 2012-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "go-lang.h"
#include "c-lang.h"
#include "parser-defs.h"
+#include "gdbarch.h"
#include <ctype.h>
{
/* gccgo strings don't necessarily have a name we can use. */
- if (TYPE_NFIELDS (type) == 2)
+ if (type->num_fields () == 2)
{
struct type *type0 = TYPE_FIELD_TYPE (type, 0);
struct type *type1 = TYPE_FIELD_TYPE (type, 1);
type0 = check_typedef (type0);
type1 = check_typedef (type1);
- if (TYPE_CODE (type0) == TYPE_CODE_PTR
+ if (type0->code () == TYPE_CODE_PTR
&& strcmp (TYPE_FIELD_NAME (type, 0), "__data") == 0
- && TYPE_CODE (type1) == TYPE_CODE_INT
+ && type1->code () == TYPE_CODE_INT
&& strcmp (TYPE_FIELD_NAME (type, 1), "__length") == 0)
{
struct type *target_type = TYPE_TARGET_TYPE (type0);
target_type = check_typedef (target_type);
- if (TYPE_CODE (target_type) == TYPE_CODE_INT
+ if (target_type->code () == TYPE_CODE_INT
&& TYPE_LENGTH (target_type) == 1
- && strcmp (TYPE_NAME (target_type), "uint8") == 0)
+ && strcmp (target_type->name (), "uint8") == 0)
return 1;
}
}
static int
sixg_string_p (struct type *type)
{
- if (TYPE_NFIELDS (type) == 2
- && TYPE_TAG_NAME (type) != NULL
- && strcmp (TYPE_TAG_NAME (type), "string") == 0)
+ if (type->num_fields () == 2
+ && type->name () != NULL
+ && strcmp (type->name (), "string") == 0)
return 1;
return 0;
return GO_TYPE_NONE;
}
+/* Return true if TYPE is a string. */
+
+static bool
+go_is_string_type_p (struct type *type)
+{
+ type = check_typedef (type);
+ return (type->code () == TYPE_CODE_STRUCT
+ && go_classify_struct_type (type) == GO_TYPE_STRING);
+}
+
/* Subroutine of unpack_mangled_go_symbol to simplify it.
Given "[foo.]bar.baz", store "bar" in *PACKAGEP and "baz" in *OBJECTP.
We stomp on the last '.' to nul-terminate "bar".
return result;
}
-/* la_sniff_from_mangled_name for Go. */
-
-static int
-go_sniff_from_mangled_name (const char *mangled, char **demangled)
-{
- *demangled = go_demangle (mangled, 0);
- return *demangled != NULL;
-}
-
/* Given a Go symbol, return its package or NULL if unknown.
Space for the result is malloc'd, caller must free. */
char *
go_symbol_package_name (const struct symbol *sym)
{
- const char *mangled_name = SYMBOL_LINKAGE_NAME (sym);
+ const char *mangled_name = sym->linkage_name ();
const char *package_name;
const char *object_name;
const char *method_type_package_name;
char *name_buf;
char *result;
- gdb_assert (SYMBOL_LANGUAGE (sym) == language_go);
+ gdb_assert (sym->language () == language_go);
name_buf = unpack_mangled_go_symbol (mangled_name,
&package_name, &object_name,
&method_type_package_name,
nr_go_primitive_types
};
-static void
-go_language_arch_info (struct gdbarch *gdbarch,
- struct language_arch_info *lai)
-{
- const struct builtin_go_type *builtin = builtin_go_type (gdbarch);
-
- lai->string_char_type = builtin->builtin_char;
-
- lai->primitive_type_vector
- = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_go_primitive_types + 1,
- struct type *);
-
- lai->primitive_type_vector [go_primitive_type_void]
- = builtin->builtin_void;
- lai->primitive_type_vector [go_primitive_type_char]
- = builtin->builtin_char;
- lai->primitive_type_vector [go_primitive_type_bool]
- = builtin->builtin_bool;
- lai->primitive_type_vector [go_primitive_type_int]
- = builtin->builtin_int;
- lai->primitive_type_vector [go_primitive_type_uint]
- = builtin->builtin_uint;
- lai->primitive_type_vector [go_primitive_type_uintptr]
- = builtin->builtin_uintptr;
- lai->primitive_type_vector [go_primitive_type_int8]
- = builtin->builtin_int8;
- lai->primitive_type_vector [go_primitive_type_int16]
- = builtin->builtin_int16;
- lai->primitive_type_vector [go_primitive_type_int32]
- = builtin->builtin_int32;
- lai->primitive_type_vector [go_primitive_type_int64]
- = builtin->builtin_int64;
- lai->primitive_type_vector [go_primitive_type_uint8]
- = builtin->builtin_uint8;
- lai->primitive_type_vector [go_primitive_type_uint16]
- = builtin->builtin_uint16;
- lai->primitive_type_vector [go_primitive_type_uint32]
- = builtin->builtin_uint32;
- lai->primitive_type_vector [go_primitive_type_uint64]
- = builtin->builtin_uint64;
- lai->primitive_type_vector [go_primitive_type_float32]
- = builtin->builtin_float32;
- lai->primitive_type_vector [go_primitive_type_float64]
- = builtin->builtin_float64;
- lai->primitive_type_vector [go_primitive_type_complex64]
- = builtin->builtin_complex64;
- lai->primitive_type_vector [go_primitive_type_complex128]
- = builtin->builtin_complex128;
-
- lai->bool_type_symbol = "bool";
- lai->bool_type_default = builtin->builtin_bool;
-}
+/* Constant data that describes the Go language. */
-static const struct language_defn go_language_defn =
+extern const struct language_data go_language_data =
{
"go",
"Go",
NULL,
&exp_descriptor_c,
go_parse,
- go_yyerror,
null_post_parser,
c_printchar, /* Print a character constant. */
c_printstr, /* Function to print string constant. */
c_emit_char, /* Print a single char. */
- go_print_type, /* Print a type using appropriate syntax. */
c_print_typedef, /* Print a typedef using appropriate
syntax. */
- go_val_print, /* Print a value using appropriate syntax. */
+ go_value_print_inner, /* la_value_print_inner */
c_value_print, /* Print a top-level value. */
- 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 */
basic_lookup_symbol_nonlocal,
- basic_lookup_transparent_type,
- go_demangle, /* Language specific symbol demangler. */
- go_sniff_from_mangled_name,
NULL, /* Language specific
class_name_from_physname. */
go_op_print_tab, /* Expression operators for printing. */
1, /* C-style arrays. */
0, /* String lower bound. */
default_word_break_characters,
- default_make_symbol_completion_list,
- go_language_arch_info,
- default_print_array_index,
- default_pass_by_reference,
- c_get_string,
- NULL,
- iterate_over_symbols,
+ default_collect_symbol_completion_matches,
+ c_watch_location_expression,
+ NULL, /* la_get_symbol_name_matcher */
&default_varobj_ops,
NULL,
- NULL,
- LANG_MAGIC
+ go_is_string_type_p,
+ "{...}" /* la_struct_too_deep_ellipsis */
};
+/* Class representing the Go language. */
+
+class go_language : public language_defn
+{
+public:
+ go_language ()
+ : language_defn (language_go, go_language_data)
+ { /* Nothing. */ }
+
+ /* See language.h. */
+ void language_arch_info (struct gdbarch *gdbarch,
+ struct language_arch_info *lai) const override
+ {
+ const struct builtin_go_type *builtin = builtin_go_type (gdbarch);
+
+ lai->string_char_type = builtin->builtin_char;
+
+ lai->primitive_type_vector
+ = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_go_primitive_types + 1,
+ struct type *);
+
+ lai->primitive_type_vector [go_primitive_type_void]
+ = builtin->builtin_void;
+ lai->primitive_type_vector [go_primitive_type_char]
+ = builtin->builtin_char;
+ lai->primitive_type_vector [go_primitive_type_bool]
+ = builtin->builtin_bool;
+ lai->primitive_type_vector [go_primitive_type_int]
+ = builtin->builtin_int;
+ lai->primitive_type_vector [go_primitive_type_uint]
+ = builtin->builtin_uint;
+ lai->primitive_type_vector [go_primitive_type_uintptr]
+ = builtin->builtin_uintptr;
+ lai->primitive_type_vector [go_primitive_type_int8]
+ = builtin->builtin_int8;
+ lai->primitive_type_vector [go_primitive_type_int16]
+ = builtin->builtin_int16;
+ lai->primitive_type_vector [go_primitive_type_int32]
+ = builtin->builtin_int32;
+ lai->primitive_type_vector [go_primitive_type_int64]
+ = builtin->builtin_int64;
+ lai->primitive_type_vector [go_primitive_type_uint8]
+ = builtin->builtin_uint8;
+ lai->primitive_type_vector [go_primitive_type_uint16]
+ = builtin->builtin_uint16;
+ lai->primitive_type_vector [go_primitive_type_uint32]
+ = builtin->builtin_uint32;
+ lai->primitive_type_vector [go_primitive_type_uint64]
+ = builtin->builtin_uint64;
+ lai->primitive_type_vector [go_primitive_type_float32]
+ = builtin->builtin_float32;
+ lai->primitive_type_vector [go_primitive_type_float64]
+ = builtin->builtin_float64;
+ lai->primitive_type_vector [go_primitive_type_complex64]
+ = builtin->builtin_complex64;
+ lai->primitive_type_vector [go_primitive_type_complex128]
+ = builtin->builtin_complex128;
+
+ lai->bool_type_symbol = "bool";
+ lai->bool_type_default = builtin->builtin_bool;
+ }
+
+ /* See language.h. */
+ bool sniff_from_mangled_name (const char *mangled,
+ char **demangled) const override
+ {
+ *demangled = go_demangle (mangled, 0);
+ return *demangled != NULL;
+ }
+
+ /* See language.h. */
+
+ char *demangle (const char *mangled, int options) const override
+ {
+ return go_demangle (mangled, options);
+ }
+
+ /* See language.h. */
+
+ void print_type (struct type *type, const char *varstring,
+ struct ui_file *stream, int show, int level,
+ const struct type_print_options *flags) const override
+ {
+ go_print_type (type, varstring, stream, show, level, flags);
+ }
+};
+
+/* Single instance of the Go language class. */
+
+static go_language go_language_defn;
+
static void *
build_go_types (struct gdbarch *gdbarch)
{
= GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_go_type);
builtin_go_type->builtin_void
- = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void");
+ = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
builtin_go_type->builtin_char
= arch_character_type (gdbarch, 8, 1, "char");
builtin_go_type->builtin_bool
builtin_go_type->builtin_uint64
= arch_integer_type (gdbarch, 64, 1, "uint64");
builtin_go_type->builtin_float32
- = arch_float_type (gdbarch, 32, "float32", NULL);
+ = arch_float_type (gdbarch, 32, "float32", floatformats_ieee_single);
builtin_go_type->builtin_float64
- = arch_float_type (gdbarch, 64, "float64", NULL);
+ = arch_float_type (gdbarch, 64, "float64", floatformats_ieee_double);
builtin_go_type->builtin_complex64
- = arch_complex_type (gdbarch, "complex64",
- builtin_go_type->builtin_float32);
+ = init_complex_type ("complex64", builtin_go_type->builtin_float32);
builtin_go_type->builtin_complex128
- = arch_complex_type (gdbarch, "complex128",
- builtin_go_type->builtin_float64);
+ = init_complex_type ("complex128", builtin_go_type->builtin_float64);
return builtin_go_type;
}
return (const struct builtin_go_type *) gdbarch_data (gdbarch, go_type_data);
}
-extern initialize_file_ftype _initialize_go_language;
-
+void _initialize_go_language ();
void
-_initialize_go_language (void)
+_initialize_go_language ()
{
go_type_data = gdbarch_data_register_post_init (build_go_types);
-
- add_language (&go_language_defn);
}
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