X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Fada-valprint.c;h=3060eb676b6f923f294ecc2a1ca7dd25be2ba5e5;hb=refs%2Fheads%2Fupstream;hp=5162737a0593e99222c95e0aaa04db67dfd38c6d;hpb=bdf779a0c5d06c958585c3ba9ca4613da163cda8;p=external%2Fbinutils.git diff --git a/gdb/ada-valprint.c b/gdb/ada-valprint.c index 5162737..3060eb6 100644 --- a/gdb/ada-valprint.c +++ b/gdb/ada-valprint.c @@ -1,6 +1,6 @@ /* Support for printing Ada values for GDB, the GNU debugger. - Copyright (C) 1986-2014 Free Software Foundation, Inc. + Copyright (C) 1986-2019 Free Software Foundation, Inc. This file is part of GDB. @@ -19,7 +19,6 @@ #include "defs.h" #include -#include #include "symtab.h" #include "gdbtypes.h" #include "expression.h" @@ -31,15 +30,16 @@ #include "ada-lang.h" #include "c-lang.h" #include "infcall.h" -#include "exceptions.h" #include "objfiles.h" +#include "target-float.h" static int print_field_values (struct type *, const gdb_byte *, int, struct ui_file *, int, - const struct value *, + struct value *, const struct value_print_options *, - int, struct type *, int); + int, struct type *, int, + const struct language_defn *); /* Make TYPE unsigned if its range of values includes no negatives. */ @@ -78,7 +78,7 @@ print_optional_low_bound (struct ui_file *stream, struct type *type, index_type = TYPE_INDEX_TYPE (type); - if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) + while (TYPE_CODE (index_type) == TYPE_CODE_RANGE) { /* We need to know what the base type is, in order to do the appropriate check below. Otherwise, if this is a subrange @@ -88,9 +88,11 @@ print_optional_low_bound (struct ui_file *stream, struct type *type, index_type = TYPE_TARGET_TYPE (index_type); } + /* Don't print the lower bound if it's the default one. */ switch (TYPE_CODE (index_type)) { case TYPE_CODE_BOOL: + case TYPE_CODE_CHAR: if (low_bound == 0) return 0; break; @@ -123,29 +125,61 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, int offset, int bitoffset, struct ui_file *stream, int recurse, - const struct value *val, + struct value *val, const struct value_print_options *options) { unsigned int i; unsigned int things_printed = 0; unsigned len; struct type *elttype, *index_type; - unsigned eltlen; unsigned long bitsize = TYPE_FIELD_BITSIZE (type, 0); struct value *mark = value_mark (); LONGEST low = 0; elttype = TYPE_TARGET_TYPE (type); - eltlen = TYPE_LENGTH (check_typedef (elttype)); index_type = TYPE_INDEX_TYPE (type); { LONGEST high; + struct type *base_index_type; if (get_discrete_bounds (index_type, &low, &high) < 0) len = 1; else len = high - low + 1; + + if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) + base_index_type = TYPE_TARGET_TYPE (index_type); + else + base_index_type = index_type; + + if (TYPE_CODE (base_index_type) == TYPE_CODE_ENUM) + { + LONGEST low_pos, high_pos; + + /* Non-contiguous enumerations types can by used as index types + so the array length is computed from the positions of the + first and last literal in the enumeration type, and not from + the values of these literals. */ + + if (!discrete_position (base_index_type, low, &low_pos) + || !discrete_position (base_index_type, high, &high_pos)) + { + warning (_("unable to get positions in array, use bounds instead")); + low_pos = low; + high_pos = high; + } + + /* The array length should normally be HIGH_POS - LOW_POS + 1. + But in Ada we allow LOW_POS to be greater than HIGH_POS for + empty arrays. In that situation, the array length is just zero, + not negative! */ + + if (low_pos > high_pos) + len = 0; + else + len = high_pos - low_pos + 1; + } } i = 0; @@ -185,9 +219,12 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, (i * bitsize) / HOST_CHAR_BIT, (i * bitsize) % HOST_CHAR_BIT, bitsize, elttype); - if (!value_available_contents_eq (v0, value_embedded_offset (v0), - v1, value_embedded_offset (v1), - eltlen)) + if (TYPE_LENGTH (check_typedef (value_type (v0))) + != TYPE_LENGTH (check_typedef (value_type (v1)))) + break; + if (!value_contents_eq (v0, value_embedded_offset (v0), + v1, value_embedded_offset (v1), + TYPE_LENGTH (check_typedef (value_type (v0))))) break; } @@ -196,7 +233,7 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, struct value_print_options opts = *options; opts.deref_ref = 0; - val_print (elttype, value_contents_for_printing (v0), + val_print (elttype, value_embedded_offset (v0), 0, stream, recurse + 1, v0, &opts, current_language); annotate_elt_rep (i - i0); @@ -227,7 +264,7 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, maybe_print_array_index (index_type, j + low, stream, options); } - val_print (elttype, value_contents_for_printing (v0), + val_print (elttype, value_embedded_offset (v0), 0, stream, recurse + 1, v0, &opts, current_language); annotate_elt (); @@ -289,68 +326,58 @@ char_at (const gdb_byte *string, int i, int type_len, type_len, byte_order); } -/* Wrapper around memcpy to make it legal argument to ui_file_put. */ -static void -ui_memcpy (void *dest, const char *buffer, long len) -{ - memcpy (dest, buffer, (size_t) len); - ((char *) dest)[len] = '\0'; -} - /* Print a floating-point value of type TYPE, pointed to in GDB by VALADDR, on STREAM. Use Ada formatting conventions: there must be a decimal point, and at least one digit before and after the - point. We use GNAT format for NaNs and infinities. */ + point. We use the GNAT format for NaNs and infinities. */ + static void ada_print_floating (const gdb_byte *valaddr, struct type *type, struct ui_file *stream) { - char buffer[64]; - char *s, *result; - struct ui_file *tmp_stream = mem_fileopen (); - struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream); + string_file tmp_stream; - print_floating (valaddr, type, tmp_stream); - ui_file_put (tmp_stream, ui_memcpy, buffer); - do_cleanups (cleanups); + print_floating (valaddr, type, &tmp_stream); - result = buffer; + std::string &s = tmp_stream.string (); + size_t skip_count = 0; /* Modify for Ada rules. */ - s = strstr (result, "inf"); - if (s == NULL) - s = strstr (result, "Inf"); - if (s == NULL) - s = strstr (result, "INF"); - if (s != NULL) - strcpy (s, "Inf"); + size_t pos = s.find ("inf"); + if (pos == std::string::npos) + pos = s.find ("Inf"); + if (pos == std::string::npos) + pos = s.find ("INF"); + if (pos != std::string::npos) + s.replace (pos, 3, "Inf"); - if (s == NULL) + if (pos == std::string::npos) { - s = strstr (result, "nan"); - if (s == NULL) - s = strstr (result, "NaN"); - if (s == NULL) - s = strstr (result, "Nan"); - if (s != NULL) + pos = s.find ("nan"); + if (pos == std::string::npos) + pos = s.find ("NaN"); + if (pos == std::string::npos) + pos = s.find ("Nan"); + if (pos != std::string::npos) { - s[0] = s[2] = 'N'; - if (result[0] == '-') - result += 1; + s[pos] = s[pos + 2] = 'N'; + if (s[0] == '-') + skip_count = 1; } } - if (s == NULL && strchr (result, '.') == NULL) + if (pos == std::string::npos + && s.find ('.') == std::string::npos) { - s = strchr (result, 'e'); - if (s == NULL) - fprintf_filtered (stream, "%s.0", result); + pos = s.find ('e'); + if (pos == std::string::npos) + fprintf_filtered (stream, "%s.0", s.c_str ()); else - fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s); - return; + fprintf_filtered (stream, "%.*s.0%s", (int) pos, s.c_str (), &s[pos]); } - fprintf_filtered (stream, "%s", result); + else + fprintf_filtered (stream, "%s", &s[skip_count]); } void @@ -438,7 +465,6 @@ ada_print_scalar (struct type *type, LONGEST val, struct ui_file *stream) default: error (_("Invalid type code in symbol table.")); } - gdb_flush (stream); } /* Print the character string STRING, printing at most LENGTH characters. @@ -537,79 +563,15 @@ ada_printstr (struct ui_file *stream, struct type *type, options); } - -/* Assuming TYPE is a simple array, print the value of this array located - at VALADDR + OFFSET. See ada_val_print for a description of the various - parameters of this function; they are identical. */ - -static void -ada_val_print_array (struct type *type, const gdb_byte *valaddr, - int offset, CORE_ADDR address, - struct ui_file *stream, int recurse, - const struct value *val, - const struct value_print_options *options) -{ - /* For an array of chars, print with string syntax. */ - if (ada_is_string_type (type) - && (options->format == 0 || options->format == 's')) - { - enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); - struct type *elttype = TYPE_TARGET_TYPE (type); - unsigned int eltlen; - unsigned int len; - - /* We know that ELTTYPE cannot possibly be null, because we found - that TYPE is a string-like type. Similarly, the size of ELTTYPE - should also be non-null, since it's a character-like type. */ - gdb_assert (elttype != NULL); - gdb_assert (TYPE_LENGTH (elttype) != 0); - - eltlen = TYPE_LENGTH (elttype); - len = TYPE_LENGTH (type) / eltlen; - - if (options->prettyformat_arrays) - print_spaces_filtered (2 + 2 * recurse, stream); - - /* If requested, look for the first null char and only print - elements up to it. */ - if (options->stop_print_at_null) - { - int temp_len; - - /* Look for a NULL char. */ - for (temp_len = 0; - (temp_len < len - && temp_len < options->print_max - && char_at (valaddr + offset, - temp_len, eltlen, byte_order) != 0); - temp_len += 1); - len = temp_len; - } - - printstr (stream, elttype, valaddr + offset, len, 0, eltlen, options); - } - else - { - fprintf_filtered (stream, "("); - print_optional_low_bound (stream, type, options); - if (TYPE_FIELD_BITSIZE (type, 0) > 0) - val_print_packed_array_elements (type, valaddr, offset, - 0, stream, recurse, val, options); - else - val_print_array_elements (type, valaddr, offset, address, - stream, recurse, val, options, 0); - fprintf_filtered (stream, ")"); - } -} - static int print_variant_part (struct type *type, int field_num, const gdb_byte *valaddr, int offset, struct ui_file *stream, int recurse, - const struct value *val, + struct value *val, const struct value_print_options *options, int comma_needed, - struct type *outer_type, int outer_offset) + struct type *outer_type, int outer_offset, + const struct language_defn *language) { struct type *var_type = TYPE_FIELD_TYPE (type, field_num); int which = ada_which_variant_applies (var_type, outer_type, @@ -624,7 +586,7 @@ print_variant_part (struct type *type, int field_num, offset + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT, stream, recurse, val, options, - comma_needed, outer_type, outer_offset); + comma_needed, outer_type, outer_offset, language); } /* Print out fields of value at VALADDR + OFFSET having structure type TYPE. @@ -645,10 +607,11 @@ print_variant_part (struct type *type, int field_num, static int print_field_values (struct type *type, const gdb_byte *valaddr, int offset, struct ui_file *stream, int recurse, - const struct value *val, + struct value *val, const struct value_print_options *options, int comma_needed, - struct type *outer_type, int outer_offset) + struct type *outer_type, int outer_offset, + const struct language_defn *language) { int i, len; @@ -667,7 +630,7 @@ print_field_values (struct type *type, const gdb_byte *valaddr, (offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT), stream, recurse, val, options, - comma_needed, type, offset); + comma_needed, type, offset, language); continue; } else if (ada_is_variant_part (type, i)) @@ -676,7 +639,7 @@ print_field_values (struct type *type, const gdb_byte *valaddr, print_variant_part (type, i, valaddr, offset, stream, recurse, val, options, comma_needed, - outer_type, outer_offset); + outer_type, outer_offset, language); continue; } @@ -704,8 +667,6 @@ print_field_values (struct type *type, const gdb_byte *valaddr, if (TYPE_FIELD_PACKED (type, i)) { - struct value *v; - /* Bitfields require special handling, especially due to byte order problems. */ if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i)) @@ -714,6 +675,7 @@ print_field_values (struct type *type, const gdb_byte *valaddr, } else { + struct value *v; int bit_pos = TYPE_FIELD_BITPOS (type, i); int bit_size = TYPE_FIELD_BITSIZE (type, i); struct value_print_options opts; @@ -727,10 +689,9 @@ print_field_values (struct type *type, const gdb_byte *valaddr, opts = *options; opts.deref_ref = 0; val_print (TYPE_FIELD_TYPE (type, i), - value_contents_for_printing (v), value_embedded_offset (v), 0, stream, recurse + 1, v, - &opts, current_language); + &opts, language); } } else @@ -738,11 +699,9 @@ print_field_values (struct type *type, const gdb_byte *valaddr, struct value_print_options opts = *options; opts.deref_ref = 0; - ada_val_print (TYPE_FIELD_TYPE (type, i), - valaddr, - (offset - + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT), - 0, stream, recurse + 1, val, &opts); + val_print (TYPE_FIELD_TYPE (type, i), + (offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT), + 0, stream, recurse + 1, val, &opts, language); } annotate_field_end (); } @@ -750,20 +709,304 @@ print_field_values (struct type *type, const gdb_byte *valaddr, return comma_needed; } +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_ARRAY of characters. */ + static void -print_record (struct type *type, const gdb_byte *valaddr, - int offset, - struct ui_file *stream, int recurse, - const struct value *val, - const struct value_print_options *options) +ada_val_print_string (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) { - type = ada_check_typedef (type); + enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); + struct type *elttype = TYPE_TARGET_TYPE (type); + unsigned int eltlen; + unsigned int len; + + /* We know that ELTTYPE cannot possibly be null, because we assume + that we're called only when TYPE is a string-like type. + Similarly, the size of ELTTYPE should also be non-null, since + it's a character-like type. */ + gdb_assert (elttype != NULL); + gdb_assert (TYPE_LENGTH (elttype) != 0); + + eltlen = TYPE_LENGTH (elttype); + len = TYPE_LENGTH (type) / eltlen; + + if (options->prettyformat_arrays) + print_spaces_filtered (2 + 2 * recurse, stream); + + /* If requested, look for the first null char and only print + elements up to it. */ + if (options->stop_print_at_null) + { + int temp_len; + + /* Look for a NULL char. */ + for (temp_len = 0; + (temp_len < len + && temp_len < options->print_max + && char_at (valaddr + offset_aligned, + temp_len, eltlen, byte_order) != 0); + temp_len += 1); + len = temp_len; + } + + printstr (stream, elttype, valaddr + offset_aligned, len, 0, + eltlen, options); +} + +/* Implement Ada val_print-ing for GNAT arrays (Eg. fat pointers, + thin pointers, etc). */ + +static void +ada_val_print_gnat_array (struct type *type, const gdb_byte *valaddr, + int offset, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + struct value *mark = value_mark (); + struct value *val; + + val = value_from_contents_and_address (type, valaddr + offset, address); + /* If this is a reference, coerce it now. This helps taking care + of the case where ADDRESS is meaningless because original_value + was not an lval. */ + val = coerce_ref (val); + if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */ + val = ada_coerce_to_simple_array_ptr (val); + else + val = ada_coerce_to_simple_array (val); + if (val == NULL) + { + gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF); + fprintf_filtered (stream, "0x0"); + } + else + val_print (value_type (val), + value_embedded_offset (val), value_address (val), + stream, recurse, val, options, + language_def (language_ada)); + value_free_to_mark (mark); +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_PTR. */ + +static void +ada_val_print_ptr (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + val_print (type, offset, address, stream, recurse, + original_value, options, language_def (language_c)); + + if (ada_is_tag_type (type)) + { + struct value *val = + value_from_contents_and_address (type, + valaddr + offset_aligned, + address + offset_aligned); + const char *name = ada_tag_name (val); + + if (name != NULL) + fprintf_filtered (stream, " (%s)", name); + } +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_INT or TYPE_CODE_RANGE. */ + +static void +ada_val_print_num (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + if (ada_is_fixed_point_type (type)) + { + struct value *scale = ada_scaling_factor (type); + struct value *v = value_from_contents (type, valaddr + offset_aligned); + v = value_cast (value_type (scale), v); + v = value_binop (v, scale, BINOP_MUL); + + const char *fmt = TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g"; + std::string str + = target_float_to_string (value_contents (v), value_type (v), fmt); + fputs_filtered (str.c_str (), stream); + return; + } + else if (TYPE_CODE (type) == TYPE_CODE_RANGE + && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ENUM + || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_BOOL + || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CHAR)) + { + /* For enum-valued ranges, we want to recurse, because we'll end + up printing the constant's name rather than its numeric + value. Character and fixed-point types are also printed + differently, so recuse for those as well. */ + struct type *target_type = TYPE_TARGET_TYPE (type); + + if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type)) + { + /* Obscure case of range type that has different length from + its base type. Perform a conversion, or we will get a + nonsense value. Actually, we could use the same + code regardless of lengths; I'm just avoiding a cast. */ + struct value *v1 + = value_from_contents_and_address (type, valaddr + offset, 0); + struct value *v = value_cast (target_type, v1); + + val_print (target_type, + value_embedded_offset (v), 0, stream, + recurse + 1, v, options, + language_def (language_ada)); + } + else + val_print (TYPE_TARGET_TYPE (type), offset, + address, stream, recurse, original_value, + options, language_def (language_ada)); + return; + } + else + { + int format = (options->format ? options->format + : options->output_format); + + if (format) + { + struct value_print_options opts = *options; + + opts.format = format; + val_print_scalar_formatted (type, offset_aligned, + original_value, &opts, 0, stream); + } + else if (ada_is_system_address_type (type)) + { + /* FIXME: We want to print System.Address variables using + the same format as for any access type. But for some + reason GNAT encodes the System.Address type as an int, + so we have to work-around this deficiency by handling + System.Address values as a special case. */ + + struct gdbarch *gdbarch = get_type_arch (type); + struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; + CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned, + ptr_type); + + fprintf_filtered (stream, "("); + type_print (type, "", stream, -1); + fprintf_filtered (stream, ") "); + fputs_filtered (paddress (gdbarch, addr), stream); + } + else + { + val_print_scalar_formatted (type, offset_aligned, + original_value, options, 0, stream); + if (ada_is_character_type (type)) + { + LONGEST c; + + fputs_filtered (" ", stream); + c = unpack_long (type, valaddr + offset_aligned); + ada_printchar (c, type, stream); + } + } + return; + } +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_ENUM. */ + +static void +ada_val_print_enum (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + int i; + unsigned int len; + LONGEST val; + + if (options->format) + { + val_print_scalar_formatted (type, offset_aligned, + original_value, options, 0, stream); + return; + } + + len = TYPE_NFIELDS (type); + val = unpack_long (type, valaddr + offset_aligned); + for (i = 0; i < len; i++) + { + QUIT; + if (val == TYPE_FIELD_ENUMVAL (type, i)) + break; + } + + if (i < len) + { + const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i)); + + if (name[0] == '\'') + fprintf_filtered (stream, "%ld %s", (long) val, name); + else + fputs_filtered (name, stream); + } + else + print_longest (stream, 'd', 0, val); +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_FLT. */ + +static void +ada_val_print_flt (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + if (options->format) + { + val_print (type, offset, address, stream, recurse, + original_value, options, language_def (language_c)); + return; + } + + ada_print_floating (valaddr + offset, type, stream); +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_STRUCT or TYPE_CODE_UNION. */ + +static void +ada_val_print_struct_union + (struct type *type, const gdb_byte *valaddr, int offset, + int offset_aligned, CORE_ADDR address, struct ui_file *stream, + int recurse, struct value *original_value, + const struct value_print_options *options) +{ + if (ada_is_bogus_array_descriptor (type)) + { + fprintf_filtered (stream, "(...?)"); + return; + } fprintf_filtered (stream, "("); - if (print_field_values (type, valaddr, offset, - stream, recurse, val, options, - 0, type, offset) != 0 && options->prettyformat) + if (print_field_values (type, valaddr, offset_aligned, + stream, recurse, original_value, options, + 0, type, offset_aligned, + language_def (language_ada)) != 0 + && options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 * recurse, stream); @@ -772,19 +1015,115 @@ print_record (struct type *type, const gdb_byte *valaddr, fprintf_filtered (stream, ")"); } +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_ARRAY. */ + +static void +ada_val_print_array (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + /* For an array of characters, print with string syntax. */ + if (ada_is_string_type (type) + && (options->format == 0 || options->format == 's')) + { + ada_val_print_string (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); + return; + } + + fprintf_filtered (stream, "("); + print_optional_low_bound (stream, type, options); + if (TYPE_FIELD_BITSIZE (type, 0) > 0) + val_print_packed_array_elements (type, valaddr, offset_aligned, + 0, stream, recurse, + original_value, options); + else + val_print_array_elements (type, offset_aligned, address, + stream, recurse, original_value, + options, 0); + fprintf_filtered (stream, ")"); +} + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_REF. */ + +static void +ada_val_print_ref (struct type *type, const gdb_byte *valaddr, + int offset, int offset_aligned, CORE_ADDR address, + struct ui_file *stream, int recurse, + struct value *original_value, + const struct value_print_options *options) +{ + /* For references, the debugger is expected to print the value as + an address if DEREF_REF is null. But printing an address in place + of the object value would be confusing to an Ada programmer. + So, for Ada values, we print the actual dereferenced value + regardless. */ + struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type)); + struct value *deref_val; + CORE_ADDR deref_val_int; + + if (TYPE_CODE (elttype) == TYPE_CODE_UNDEF) + { + fputs_filtered ("", stream); + return; + } + + deref_val = coerce_ref_if_computed (original_value); + if (deref_val) + { + if (ada_is_tagged_type (value_type (deref_val), 1)) + deref_val = ada_tag_value_at_base_address (deref_val); + + common_val_print (deref_val, stream, recurse + 1, options, + language_def (language_ada)); + return; + } + + deref_val_int = unpack_pointer (type, valaddr + offset_aligned); + if (deref_val_int == 0) + { + fputs_filtered ("(null)", stream); + return; + } + + deref_val + = ada_value_ind (value_from_pointer (lookup_pointer_type (elttype), + deref_val_int)); + if (ada_is_tagged_type (value_type (deref_val), 1)) + deref_val = ada_tag_value_at_base_address (deref_val); + + /* Make sure that the object does not have an unreasonable size + before trying to print it. This can happen for instance with + references to dynamic objects whose contents is uninitialized + (Eg: an array whose bounds are not set yet). */ + ada_ensure_varsize_limit (value_type (deref_val)); + + if (value_lazy (deref_val)) + value_fetch_lazy (deref_val); + + val_print (value_type (deref_val), + value_embedded_offset (deref_val), + value_address (deref_val), stream, recurse + 1, + deref_val, options, language_def (language_ada)); +} + /* See the comment on ada_val_print. This function differs in that it does not catch evaluation errors (leaving that to ada_val_print). */ static void -ada_val_print_1 (struct type *type, const gdb_byte *valaddr, +ada_val_print_1 (struct type *type, int offset, CORE_ADDR address, struct ui_file *stream, int recurse, - const struct value *original_value, + struct value *original_value, const struct value_print_options *options) { - int i; - struct type *elttype; int offset_aligned; + const gdb_byte *valaddr = value_contents_for_printing (original_value); type = ada_check_typedef (type); @@ -792,282 +1131,90 @@ ada_val_print_1 (struct type *type, const gdb_byte *valaddr, || (ada_is_constrained_packed_array_type (type) && TYPE_CODE (type) != TYPE_CODE_PTR)) { - struct value *mark = value_mark (); - struct value *val; - - val = value_from_contents_and_address (type, valaddr + offset, address); - /* If this is a reference, coerce it now. This helps taking care - of the case where ADDRESS is meaningless because original_value - was not an lval. */ - val = coerce_ref (val); - if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */ - val = ada_coerce_to_simple_array_ptr (val); - else - val = ada_coerce_to_simple_array (val); - if (val == NULL) - { - gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF); - fprintf_filtered (stream, "0x0"); - } - else - ada_val_print_1 (value_type (val), - value_contents_for_printing (val), - value_embedded_offset (val), - value_address (val), stream, recurse, - val, options); - value_free_to_mark (mark); + ada_val_print_gnat_array (type, valaddr, offset, address, + stream, recurse, original_value, + options); return; } offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr; type = printable_val_type (type, valaddr + offset_aligned); + type = resolve_dynamic_type (type, valaddr + offset_aligned, + address + offset_aligned); switch (TYPE_CODE (type)) { default: - c_val_print (type, valaddr, offset, address, stream, - recurse, original_value, options); + val_print (type, offset, address, stream, recurse, + original_value, options, language_def (language_c)); break; case TYPE_CODE_PTR: - { - c_val_print (type, valaddr, offset, address, - stream, recurse, original_value, options); - - if (ada_is_tag_type (type)) - { - struct value *val = - value_from_contents_and_address (type, - valaddr + offset_aligned, - address + offset_aligned); - const char *name = ada_tag_name (val); - - if (name != NULL) - fprintf_filtered (stream, " (%s)", name); - } - return; - } + ada_val_print_ptr (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); + break; case TYPE_CODE_INT: case TYPE_CODE_RANGE: - if (ada_is_fixed_point_type (type)) - { - LONGEST v = unpack_long (type, valaddr + offset_aligned); - - fprintf_filtered (stream, TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g", - (double) ada_fixed_to_float (type, v)); - return; - } - else if (TYPE_CODE (type) == TYPE_CODE_RANGE) - { - struct type *target_type = TYPE_TARGET_TYPE (type); - - if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type)) - { - /* Obscure case of range type that has different length from - its base type. Perform a conversion, or we will get a - nonsense value. Actually, we could use the same - code regardless of lengths; I'm just avoiding a cast. */ - struct value *v1 - = value_from_contents_and_address (type, valaddr + offset, 0); - struct value *v = value_cast (target_type, v1); - - ada_val_print_1 (target_type, - value_contents_for_printing (v), - value_embedded_offset (v), 0, - stream, recurse + 1, v, options); - } - else - ada_val_print_1 (TYPE_TARGET_TYPE (type), - valaddr, offset, - address, stream, recurse, - original_value, options); - return; - } - else - { - int format = (options->format ? options->format - : options->output_format); - - if (format) - { - struct value_print_options opts = *options; - - opts.format = format; - val_print_scalar_formatted (type, valaddr, offset_aligned, - original_value, &opts, 0, stream); - } - else if (ada_is_system_address_type (type)) - { - /* FIXME: We want to print System.Address variables using - the same format as for any access type. But for some - reason GNAT encodes the System.Address type as an int, - so we have to work-around this deficiency by handling - System.Address values as a special case. */ - - struct gdbarch *gdbarch = get_type_arch (type); - struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; - CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned, - ptr_type); - - fprintf_filtered (stream, "("); - type_print (type, "", stream, -1); - fprintf_filtered (stream, ") "); - fputs_filtered (paddress (gdbarch, addr), stream); - } - else - { - val_print_type_code_int (type, valaddr + offset_aligned, stream); - if (ada_is_character_type (type)) - { - LONGEST c; - - fputs_filtered (" ", stream); - c = unpack_long (type, valaddr + offset_aligned); - ada_printchar (c, type, stream); - } - } - return; - } + ada_val_print_num (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); + break; case TYPE_CODE_ENUM: - { - unsigned int len; - LONGEST val; - - if (options->format) - { - val_print_scalar_formatted (type, valaddr, offset_aligned, - original_value, options, 0, stream); - break; - } - len = TYPE_NFIELDS (type); - val = unpack_long (type, valaddr + offset_aligned); - for (i = 0; i < len; i++) - { - QUIT; - if (val == TYPE_FIELD_ENUMVAL (type, i)) - { - break; - } - } - if (i < len) - { - const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i)); - - if (name[0] == '\'') - fprintf_filtered (stream, "%ld %s", (long) val, name); - else - fputs_filtered (name, stream); - } - else - { - print_longest (stream, 'd', 0, val); - } - break; - } + ada_val_print_enum (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); + break; case TYPE_CODE_FLT: - if (options->format) - { - c_val_print (type, valaddr, offset, address, stream, - recurse, original_value, options); - return; - } - else - ada_print_floating (valaddr + offset, type, stream); + ada_val_print_flt (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); break; case TYPE_CODE_UNION: case TYPE_CODE_STRUCT: - if (ada_is_bogus_array_descriptor (type)) - { - fprintf_filtered (stream, "(...?)"); - return; - } - else - { - print_record (type, valaddr, offset_aligned, - stream, recurse, original_value, options); - return; - } + ada_val_print_struct_union (type, valaddr, offset, offset_aligned, + address, stream, recurse, + original_value, options); + break; case TYPE_CODE_ARRAY: - ada_val_print_array (type, valaddr, offset_aligned, + ada_val_print_array (type, valaddr, offset, offset_aligned, address, stream, recurse, original_value, options); return; case TYPE_CODE_REF: - /* For references, the debugger is expected to print the value as - an address if DEREF_REF is null. But printing an address in place - of the object value would be confusing to an Ada programmer. - So, for Ada values, we print the actual dereferenced value - regardless. */ - elttype = check_typedef (TYPE_TARGET_TYPE (type)); - - if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) - { - CORE_ADDR deref_val_int; - struct value *deref_val; - - deref_val = coerce_ref_if_computed (original_value); - if (deref_val) - { - if (ada_is_tagged_type (value_type (deref_val), 1)) - deref_val = ada_tag_value_at_base_address (deref_val); - - common_val_print (deref_val, stream, recurse + 1, options, - current_language); - break; - } - - deref_val_int = unpack_pointer (type, valaddr + offset_aligned); - if (deref_val_int != 0) - { - deref_val = - ada_value_ind (value_from_pointer - (lookup_pointer_type (elttype), - deref_val_int)); - - if (ada_is_tagged_type (value_type (deref_val), 1)) - deref_val = ada_tag_value_at_base_address (deref_val); - - val_print (value_type (deref_val), - value_contents_for_printing (deref_val), - value_embedded_offset (deref_val), - value_address (deref_val), stream, recurse + 1, - deref_val, options, current_language); - } - else - fputs_filtered ("(null)", stream); - } - else - fputs_filtered ("???", stream); - + ada_val_print_ref (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); break; } - gdb_flush (stream); } /* See val_print for a description of the various parameters of this function; they are identical. */ void -ada_val_print (struct type *type, const gdb_byte *valaddr, +ada_val_print (struct type *type, int embedded_offset, CORE_ADDR address, struct ui_file *stream, int recurse, - const struct value *val, + struct value *val, const struct value_print_options *options) { - volatile struct gdb_exception except; - - /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */ - TRY_CATCH (except, RETURN_MASK_ALL) + try { - ada_val_print_1 (type, valaddr, embedded_offset, address, + ada_val_print_1 (type, embedded_offset, address, stream, recurse, val, options); } + catch (const gdb_exception_error &except) + { + fprintf_filtered (stream, _(""), + except.what ()); + } } void @@ -1115,7 +1262,7 @@ ada_value_print (struct value *val0, struct ui_file *stream, opts = *options; opts.deref_ref = 1; - val_print (type, value_contents_for_printing (val), + val_print (type, value_embedded_offset (val), address, stream, 0, val, &opts, current_language); }