X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fada-valprint.c;h=ba12a7842e05668cbdafd858662abd7ba5137aa5;hb=3043c1aba16b1b5bfdf6813d90ec661988ddfa3f;hp=51fa4a8526500551409a97e19ef8796e81caba14;hpb=28e7fd62340426746f9c896cbc40c5d374ec47aa;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/ada-valprint.c b/gdb/ada-valprint.c index 51fa4a8526..ba12a7842e 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) 1986-2013 Free Software Foundation, Inc. + Copyright (C) 1986-2015 Free Software Foundation, Inc. This file is part of GDB. @@ -19,7 +19,6 @@ #include "defs.h" #include -#include "gdb_string.h" #include "symtab.h" #include "gdbtypes.h" #include "expression.h" @@ -31,28 +30,15 @@ #include "ada-lang.h" #include "c-lang.h" #include "infcall.h" -#include "exceptions.h" #include "objfiles.h" -static void print_record (struct type *, const gdb_byte *, int, - struct ui_file *, - int, - const struct value *, - const struct value_print_options *); - static int print_field_values (struct type *, const gdb_byte *, int, struct ui_file *, int, const struct value *, const struct value_print_options *, - int, struct type *, int); - -static void adjust_type_signedness (struct type *); - -static void ada_val_print_1 (struct type *, const gdb_byte *, int, CORE_ADDR, - struct ui_file *, int, - const struct value *, - const struct value_print_options *); + int, struct type *, int, + const struct language_defn *); /* Make TYPE unsigned if its range of values includes no negatives. */ @@ -91,7 +77,7 @@ 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 @@ -143,13 +129,11 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, 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); { @@ -171,7 +155,7 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, if (i != 0) { - if (options->prettyprint_arrays) + if (options->prettyformat_arrays) { fprintf_filtered (stream, ",\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -198,9 +182,12 @@ 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; } @@ -227,7 +214,7 @@ val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr, { if (j > i0) { - if (options->prettyprint_arrays) + if (options->prettyformat_arrays) { fprintf_filtered (stream, ",\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -302,34 +289,22 @@ 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; - int len; struct ui_file *tmp_stream = mem_fileopen (); struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream); print_floating (valaddr, type, tmp_stream); - ui_file_put (tmp_stream, ui_memcpy, buffer); - do_cleanups (cleanups); - - result = buffer; - len = strlen (result); + result = ui_file_xstrdup (tmp_stream, NULL); + make_cleanup (xfree, result); /* Modify for Ada rules. */ @@ -363,9 +338,11 @@ ada_print_floating (const gdb_byte *valaddr, struct type *type, fprintf_filtered (stream, "%s.0", result); else fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s); - return; } - fprintf_filtered (stream, "%s", result); + else + fprintf_filtered (stream, "%s", result); + + do_cleanups (cleanups); } void @@ -509,10 +486,7 @@ printstr (struct ui_file *stream, struct type *elttype, const gdb_byte *string, { if (in_quotes) { - if (options->inspect_it) - fputs_filtered ("\\\", ", stream); - else - fputs_filtered ("\", ", stream); + fputs_filtered ("\", ", stream); in_quotes = 0; } fputs_filtered ("'", stream); @@ -528,10 +502,7 @@ printstr (struct ui_file *stream, struct type *elttype, const gdb_byte *string, { if (!in_quotes) { - if (options->inspect_it) - fputs_filtered ("\\\"", stream); - else - fputs_filtered ("\"", stream); + fputs_filtered ("\"", stream); in_quotes = 1; } ada_emit_char (char_at (string, i, type_len, byte_order), @@ -542,12 +513,7 @@ printstr (struct ui_file *stream, struct type *elttype, const gdb_byte *string, /* Terminate the quotes if necessary. */ if (in_quotes) - { - if (options->inspect_it) - fputs_filtered ("\\\"", stream); - else - fputs_filtered ("\"", stream); - } + fputs_filtered ("\"", stream); if (force_ellipses || i < length) fputs_filtered ("...", stream); @@ -563,369 +529,6 @@ ada_printstr (struct ui_file *stream, struct type *type, options); } - -/* 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, - int embedded_offset, CORE_ADDR address, - struct ui_file *stream, int recurse, - const 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) - { - ada_val_print_1 (type, valaddr, embedded_offset, address, - stream, recurse, val, 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->prettyprint_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, ")"); - } -} - -/* 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, - int offset, CORE_ADDR address, - struct ui_file *stream, int recurse, - const struct value *original_value, - const struct value_print_options *options) -{ - int i; - struct type *elttype; - int offset_aligned; - - type = ada_check_typedef (type); - - if (ada_is_array_descriptor_type (type) - || (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); - return; - } - - offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr; - type = printable_val_type (type, valaddr + offset_aligned); - - switch (TYPE_CODE (type)) - { - default: - c_val_print (type, valaddr, offset, address, stream, - recurse, original_value, options); - 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; - } - - 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; - } - - 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; - } - - 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); - 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; - } - - case TYPE_CODE_ARRAY: - ada_val_print_array (type, valaddr, 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); - - break; - } - gdb_flush (stream); -} - static int print_variant_part (struct type *type, int field_num, const gdb_byte *valaddr, int offset, @@ -933,7 +536,8 @@ print_variant_part (struct type *type, int field_num, const 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, @@ -948,79 +552,7 @@ 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); -} - -void -ada_value_print (struct value *val0, struct ui_file *stream, - const struct value_print_options *options) -{ - struct value *val = ada_to_fixed_value (val0); - CORE_ADDR address = value_address (val); - struct type *type = ada_check_typedef (value_type (val)); - struct value_print_options opts; - - /* If it is a pointer, indicate what it points to. */ - if (TYPE_CODE (type) == TYPE_CODE_PTR) - { - /* Hack: don't print (char *) for char strings. Their - type is indicated by the quoted string anyway. */ - if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) != sizeof (char) - || TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_INT - || TYPE_UNSIGNED (TYPE_TARGET_TYPE (type))) - { - fprintf_filtered (stream, "("); - type_print (type, "", stream, -1); - fprintf_filtered (stream, ") "); - } - } - else if (ada_is_array_descriptor_type (type)) - { - /* We do not print the type description unless TYPE is an array - access type (this is encoded by the compiler as a typedef to - a fat pointer - hence the check against TYPE_CODE_TYPEDEF). */ - if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) - { - fprintf_filtered (stream, "("); - type_print (type, "", stream, -1); - fprintf_filtered (stream, ") "); - } - } - else if (ada_is_bogus_array_descriptor (type)) - { - fprintf_filtered (stream, "("); - type_print (type, "", stream, -1); - fprintf_filtered (stream, ") (...?)"); - return; - } - - opts = *options; - opts.deref_ref = 1; - val_print (type, value_contents_for_printing (val), - value_embedded_offset (val), address, - stream, 0, val, &opts, current_language); -} - -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) -{ - type = ada_check_typedef (type); - - fprintf_filtered (stream, "("); - - if (print_field_values (type, valaddr, offset, - stream, recurse, val, options, - 0, type, offset) != 0 && options->pretty) - { - fprintf_filtered (stream, "\n"); - print_spaces_filtered (2 * recurse, stream); - } - - fprintf_filtered (stream, ")"); + comma_needed, outer_type, outer_offset, language); } /* Print out fields of value at VALADDR + OFFSET having structure type TYPE. @@ -1044,7 +576,8 @@ print_field_values (struct type *type, const gdb_byte *valaddr, const 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; @@ -1063,7 +596,7 @@ 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)) @@ -1072,7 +605,7 @@ 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; } @@ -1080,7 +613,7 @@ print_field_values (struct type *type, const gdb_byte *valaddr, fprintf_filtered (stream, ", "); comma_needed = 1; - if (options->pretty) + if (options->prettyformat) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -1089,29 +622,14 @@ print_field_values (struct type *type, const gdb_byte *valaddr, { wrap_here (n_spaces (2 + 2 * recurse)); } - if (options->inspect_it) - { - if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR) - fputs_filtered ("\"( ptr \"", stream); - else - fputs_filtered ("\"( nodef \"", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), - language_cplus, DMGL_NO_OPTS); - fputs_filtered ("\" \"", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), - language_cplus, DMGL_NO_OPTS); - fputs_filtered ("\") \"", stream); - } - else - { - annotate_field_begin (TYPE_FIELD_TYPE (type, i)); - fprintf_filtered (stream, "%.*s", - ada_name_prefix_len (TYPE_FIELD_NAME (type, i)), - TYPE_FIELD_NAME (type, i)); - annotate_field_name_end (); - fputs_filtered (" => ", stream); - annotate_field_value (); - } + + annotate_field_begin (TYPE_FIELD_TYPE (type, i)); + fprintf_filtered (stream, "%.*s", + ada_name_prefix_len (TYPE_FIELD_NAME (type, i)), + TYPE_FIELD_NAME (type, i)); + annotate_field_name_end (); + fputs_filtered (" => ", stream); + annotate_field_value (); if (TYPE_FIELD_PACKED (type, i)) { @@ -1141,7 +659,7 @@ print_field_values (struct type *type, const gdb_byte *valaddr, value_contents_for_printing (v), value_embedded_offset (v), 0, stream, recurse + 1, v, - &opts, current_language); + &opts, language); } } else @@ -1149,14 +667,561 @@ 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), valaddr, + (offset + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT), + 0, stream, recurse + 1, val, &opts, language); } annotate_field_end (); } return comma_needed; } + +/* Implement Ada val_print'ing for the case where TYPE is + a TYPE_CODE_ARRAY of characters. */ + +static void +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, + const struct value *original_value, + const struct value_print_options *options) +{ + 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + 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_contents_for_printing (val), + value_embedded_offset (val), value_address (val), + stream, recurse, val, options, language); + 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + val_print (type, valaddr, 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + 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); + + val_print (target_type, value_contents_for_printing (v), + value_embedded_offset (v), 0, stream, + recurse + 1, v, options, language); + } + else + val_print (TYPE_TARGET_TYPE (type), valaddr, offset, + address, stream, recurse, original_value, + options, language); + 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; + } +} + +/* 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + int i; + unsigned int len; + LONGEST val; + + if (options->format) + { + val_print_scalar_formatted (type, valaddr, 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + if (options->format) + { + val_print (type, valaddr, 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, const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + if (ada_is_bogus_array_descriptor (type)) + { + fprintf_filtered (stream, "(...?)"); + return; + } + + fprintf_filtered (stream, "("); + + if (print_field_values (type, valaddr, offset_aligned, + stream, recurse, original_value, options, + 0, type, offset_aligned, language) != 0 + && options->prettyformat) + { + fprintf_filtered (stream, "\n"); + print_spaces_filtered (2 * recurse, stream); + } + + 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, + const 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, valaddr, 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, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + /* 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); + 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)); + + 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, language); +} + +/* 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, + int offset, CORE_ADDR address, + struct ui_file *stream, int recurse, + const struct value *original_value, + const struct value_print_options *options, + const struct language_defn *language) +{ + int offset_aligned; + + type = ada_check_typedef (type); + + if (ada_is_array_descriptor_type (type) + || (ada_is_constrained_packed_array_type (type) + && TYPE_CODE (type) != TYPE_CODE_PTR)) + { + ada_val_print_gnat_array (type, valaddr, offset, address, + stream, recurse, original_value, + options, language); + 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: + val_print (type, valaddr, offset, address, stream, recurse, + original_value, options, language_def (language_c)); + break; + + case TYPE_CODE_PTR: + ada_val_print_ptr (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options, language); + break; + + case TYPE_CODE_INT: + case TYPE_CODE_RANGE: + ada_val_print_num (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options, language); + break; + + case TYPE_CODE_ENUM: + ada_val_print_enum (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options, language); + break; + + case TYPE_CODE_FLT: + ada_val_print_flt (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options, language); + break; + + case TYPE_CODE_UNION: + case TYPE_CODE_STRUCT: + ada_val_print_struct_union (type, valaddr, offset, offset_aligned, + address, stream, recurse, + original_value, options, language); + break; + + case TYPE_CODE_ARRAY: + ada_val_print_array (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options); + return; + + case TYPE_CODE_REF: + ada_val_print_ref (type, valaddr, offset, offset_aligned, + address, stream, recurse, original_value, + options, language); + break; + } +} + +/* 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, + int embedded_offset, CORE_ADDR address, + struct ui_file *stream, int recurse, + const struct value *val, + const struct value_print_options *options) +{ + + /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */ + TRY + { + ada_val_print_1 (type, valaddr, embedded_offset, address, + stream, recurse, val, options, + current_language); + } + CATCH (except, RETURN_MASK_ALL) + { + } + END_CATCH +} + +void +ada_value_print (struct value *val0, struct ui_file *stream, + const struct value_print_options *options) +{ + struct value *val = ada_to_fixed_value (val0); + CORE_ADDR address = value_address (val); + struct type *type = ada_check_typedef (value_enclosing_type (val)); + struct value_print_options opts; + + /* If it is a pointer, indicate what it points to. */ + if (TYPE_CODE (type) == TYPE_CODE_PTR) + { + /* Hack: don't print (char *) for char strings. Their + type is indicated by the quoted string anyway. */ + if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) != sizeof (char) + || TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_INT + || TYPE_UNSIGNED (TYPE_TARGET_TYPE (type))) + { + fprintf_filtered (stream, "("); + type_print (type, "", stream, -1); + fprintf_filtered (stream, ") "); + } + } + else if (ada_is_array_descriptor_type (type)) + { + /* We do not print the type description unless TYPE is an array + access type (this is encoded by the compiler as a typedef to + a fat pointer - hence the check against TYPE_CODE_TYPEDEF). */ + if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) + { + fprintf_filtered (stream, "("); + type_print (type, "", stream, -1); + fprintf_filtered (stream, ") "); + } + } + else if (ada_is_bogus_array_descriptor (type)) + { + fprintf_filtered (stream, "("); + type_print (type, "", stream, -1); + fprintf_filtered (stream, ") (...?)"); + return; + } + + opts = *options; + opts.deref_ref = 1; + val_print (type, value_contents_for_printing (val), + value_embedded_offset (val), address, + stream, 0, val, &opts, current_language); +}