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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/ch-valprint.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'gdb/ch-valprint.c')
-rw-r--r-- | gdb/ch-valprint.c | 630 |
1 files changed, 0 insertions, 630 deletions
diff --git a/gdb/ch-valprint.c b/gdb/ch-valprint.c deleted file mode 100644 index 663ba64..0000000 --- a/gdb/ch-valprint.c +++ /dev/null @@ -1,630 +0,0 @@ -/* Support for printing Chill values for GDB, the GNU debugger. - Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994 - Free Software Foundation, Inc. - -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 2 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, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "defs.h" -#include "obstack.h" -#include "symtab.h" -#include "gdbtypes.h" -#include "valprint.h" -#include "expression.h" -#include "value.h" -#include "language.h" -#include "demangle.h" -#include "c-lang.h" /* For c_val_print */ -#include "typeprint.h" -#include "ch-lang.h" -#include "annotate.h" - -static void -chill_print_value_fields PARAMS ((struct type *, char *, GDB_FILE *, int, int, - enum val_prettyprint, struct type **)); - -static void -chill_print_type_scalar PARAMS ((struct type *, LONGEST, GDB_FILE *)); - -static void -chill_val_print_array_elements PARAMS ((struct type *, char *, CORE_ADDR, GDB_FILE *, - int, int, int, enum val_prettyprint)); - - -/* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM. - Used to print data from type structures in a specified type. For example, - array bounds may be characters or booleans in some languages, and this - allows the ranges to be printed in their "natural" form rather than as - decimal integer values. */ - -static void -chill_print_type_scalar (type, val, stream) - struct type *type; - LONGEST val; - GDB_FILE *stream; -{ - switch (TYPE_CODE (type)) - { - case TYPE_CODE_RANGE: - if (TYPE_TARGET_TYPE (type)) - { - chill_print_type_scalar (TYPE_TARGET_TYPE (type), val, stream); - return; - } - break; - case TYPE_CODE_UNDEF: - case TYPE_CODE_PTR: - case TYPE_CODE_ARRAY: - case TYPE_CODE_STRUCT: - case TYPE_CODE_UNION: - case TYPE_CODE_ENUM: - case TYPE_CODE_FUNC: - case TYPE_CODE_INT: - case TYPE_CODE_FLT: - case TYPE_CODE_VOID: - case TYPE_CODE_SET: - case TYPE_CODE_STRING: - case TYPE_CODE_BITSTRING: - case TYPE_CODE_ERROR: - case TYPE_CODE_MEMBER: - case TYPE_CODE_METHOD: - case TYPE_CODE_REF: - case TYPE_CODE_CHAR: - case TYPE_CODE_BOOL: - case TYPE_CODE_COMPLEX: - case TYPE_CODE_TYPEDEF: - default: - break; - } - print_type_scalar (type, val, stream); -} - -/* Print the elements of an array. - Similar to val_print_array_elements, but prints - element indexes (in Chill syntax). */ - -static void -chill_val_print_array_elements (type, valaddr, address, stream, - format, deref_ref, recurse, pretty) - struct type *type; - char *valaddr; - CORE_ADDR address; - GDB_FILE *stream; - int format; - int deref_ref; - int recurse; - enum val_prettyprint pretty; -{ - unsigned int i = 0; - unsigned int things_printed = 0; - unsigned len; - struct type *elttype; - struct type *range_type = TYPE_FIELD_TYPE (type, 0); - struct type *index_type = TYPE_TARGET_TYPE (range_type); - unsigned eltlen; - /* Position of the array element we are examining to see - whether it is repeated. */ - unsigned int rep1; - /* Number of repetitions we have detected so far. */ - unsigned int reps; - LONGEST low_bound = TYPE_FIELD_BITPOS (range_type, 0); - - elttype = check_typedef (TYPE_TARGET_TYPE (type)); - eltlen = TYPE_LENGTH (elttype); - len = TYPE_LENGTH (type) / eltlen; - - annotate_array_section_begin (i, elttype); - - for (; i < len && things_printed < print_max; i++) - { - if (i != 0) - { - if (prettyprint_arrays) - { - fprintf_filtered (stream, ",\n"); - print_spaces_filtered (2 + 2 * recurse, stream); - } - else - { - fprintf_filtered (stream, ", "); - } - } - wrap_here (n_spaces (2 + 2 * recurse)); - - rep1 = i + 1; - reps = 1; - while ((rep1 < len) && - !memcmp (valaddr + i * eltlen, valaddr + rep1 * eltlen, eltlen)) - { - ++reps; - ++rep1; - } - - fputs_filtered ("(", stream); - chill_print_type_scalar (index_type, low_bound + i, stream); - if (reps > 1) - { - fputs_filtered (":", stream); - chill_print_type_scalar (index_type, low_bound + i + reps - 1, - stream); - fputs_filtered ("): ", stream); - val_print (elttype, valaddr + i * eltlen, 0, 0, stream, format, - deref_ref, recurse + 1, pretty); - - i = rep1 - 1; - things_printed += 1; - } - else - { - fputs_filtered ("): ", stream); - val_print (elttype, valaddr + i * eltlen, 0, 0, stream, format, - deref_ref, recurse + 1, pretty); - annotate_elt (); - things_printed++; - } - } - annotate_array_section_end (); - if (i < len) - { - fprintf_filtered (stream, "..."); - } -} - -/* Print data of type TYPE located at VALADDR (within GDB), which came from - the inferior at address ADDRESS, onto stdio stream STREAM according to - FORMAT (a letter or 0 for natural format). The data at VALADDR is in - target byte order. - - If the data are a string pointer, returns the number of string characters - printed. - - If DEREF_REF is nonzero, then dereference references, otherwise just print - them like pointers. - - The PRETTY parameter controls prettyprinting. */ - -int -chill_val_print (type, valaddr, embedded_offset, address, - stream, format, deref_ref, recurse, pretty) - struct type *type; - char *valaddr; - int embedded_offset; - CORE_ADDR address; - GDB_FILE *stream; - int format; - int deref_ref; - int recurse; - enum val_prettyprint pretty; -{ - LONGEST val; - unsigned int i = 0; /* Number of characters printed. */ - struct type *elttype; - CORE_ADDR addr; - - CHECK_TYPEDEF (type); - - switch (TYPE_CODE (type)) - { - case TYPE_CODE_ARRAY: - if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0) - { - if (prettyprint_arrays) - { - print_spaces_filtered (2 + 2 * recurse, stream); - } - fprintf_filtered (stream, "["); - chill_val_print_array_elements (type, valaddr, address, stream, - format, deref_ref, recurse, pretty); - fprintf_filtered (stream, "]"); - } - else - { - error ("unimplemented in chill_val_print; unspecified array length"); - } - break; - - case TYPE_CODE_INT: - format = format ? format : output_format; - if (format) - { - print_scalar_formatted (valaddr, type, format, 0, stream); - } - else - { - val_print_type_code_int (type, valaddr, stream); - } - break; - - case TYPE_CODE_CHAR: - format = format ? format : output_format; - if (format) - { - print_scalar_formatted (valaddr, type, format, 0, stream); - } - else - { - LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr), - stream); - } - break; - - case TYPE_CODE_FLT: - if (format) - { - print_scalar_formatted (valaddr, type, format, 0, stream); - } - else - { - print_floating (valaddr, type, stream); - } - break; - - case TYPE_CODE_BOOL: - format = format ? format : output_format; - if (format) - { - print_scalar_formatted (valaddr, type, format, 0, stream); - } - else - { - /* FIXME: Why is this using builtin_type_chill_bool not type? */ - val = unpack_long (builtin_type_chill_bool, valaddr); - fprintf_filtered (stream, val ? "TRUE" : "FALSE"); - } - break; - - case TYPE_CODE_UNDEF: - /* This happens (without TYPE_FLAG_STUB set) on systems which don't use - dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" - and no complete type for struct foo in that file. */ - fprintf_filtered (stream, "<incomplete type>"); - break; - - case TYPE_CODE_PTR: - if (format && format != 's') - { - print_scalar_formatted (valaddr, type, format, 0, stream); - break; - } - addr = unpack_pointer (type, valaddr); - elttype = check_typedef (TYPE_TARGET_TYPE (type)); - - /* We assume a NULL pointer is all zeros ... */ - if (addr == 0) - { - fputs_filtered ("NULL", stream); - return 0; - } - - if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) - { - /* Try to print what function it points to. */ - print_address_demangle (addr, stream, demangle); - /* Return value is irrelevant except for string pointers. */ - return (0); - } - if (addressprint && format != 's') - { - print_address_numeric (addr, 1, stream); - } - - /* For a pointer to char or unsigned char, also print the string - pointed to, unless pointer is null. */ - if (TYPE_LENGTH (elttype) == 1 - && TYPE_CODE (elttype) == TYPE_CODE_CHAR - && (format == 0 || format == 's') - && addr != 0 - && /* If print_max is UINT_MAX, the alloca below will fail. - In that case don't try to print the string. */ - print_max < UINT_MAX) - i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream); - - /* Return number of characters printed, plus one for the - terminating null if we have "reached the end". */ - return (i + (print_max && i != print_max)); - break; - - case TYPE_CODE_STRING: - i = TYPE_LENGTH (type); - LA_PRINT_STRING (stream, valaddr, i, 1, 0); - /* Return number of characters printed, plus one for the terminating - null if we have "reached the end". */ - return (i + (print_max && i != print_max)); - break; - - case TYPE_CODE_BITSTRING: - case TYPE_CODE_SET: - elttype = TYPE_INDEX_TYPE (type); - CHECK_TYPEDEF (elttype); - if (TYPE_FLAGS (elttype) & TYPE_FLAG_STUB) - { - fprintf_filtered (stream, "<incomplete type>"); - gdb_flush (stream); - break; - } - { - struct type *range = elttype; - LONGEST low_bound, high_bound; - int i; - int is_bitstring = TYPE_CODE (type) == TYPE_CODE_BITSTRING; - int need_comma = 0; - - if (is_bitstring) - fputs_filtered ("B'", stream); - else - fputs_filtered ("[", stream); - - i = get_discrete_bounds (range, &low_bound, &high_bound); - maybe_bad_bstring: - if (i < 0) - { - fputs_filtered ("<error value>", stream); - goto done; - } - - for (i = low_bound; i <= high_bound; i++) - { - int element = value_bit_index (type, valaddr, i); - if (element < 0) - { - i = element; - goto maybe_bad_bstring; - } - if (is_bitstring) - fprintf_filtered (stream, "%d", element); - else if (element) - { - if (need_comma) - fputs_filtered (", ", stream); - chill_print_type_scalar (range, (LONGEST) i, stream); - need_comma = 1; - - /* Look for a continuous range of true elements. */ - if (i+1 <= high_bound && value_bit_index (type, valaddr, ++i)) - { - int j = i; /* j is the upper bound so far of the range */ - fputs_filtered (":", stream); - while (i+1 <= high_bound - && value_bit_index (type, valaddr, ++i)) - j = i; - chill_print_type_scalar (range, (LONGEST) j, stream); - } - } - } - done: - if (is_bitstring) - fputs_filtered ("'", stream); - else - fputs_filtered ("]", stream); - } - break; - - case TYPE_CODE_STRUCT: - if (chill_varying_type (type)) - { - struct type *inner = check_typedef (TYPE_FIELD_TYPE (type, 1)); - long length = unpack_long (TYPE_FIELD_TYPE (type, 0), valaddr); - char *data_addr = valaddr + TYPE_FIELD_BITPOS (type, 1) / 8; - - switch (TYPE_CODE (inner)) - { - case TYPE_CODE_STRING: - if (length > TYPE_LENGTH (type) - 2) - { - fprintf_filtered (stream, - "<dynamic length %ld > static length %d> *invalid*", - length, TYPE_LENGTH (type)); - - /* Don't print the string; doing so might produce a - segfault. */ - return length; - } - LA_PRINT_STRING (stream, data_addr, length, 1, 0); - return length; - default: - break; - } - } - chill_print_value_fields (type, valaddr, stream, format, recurse, pretty, - 0); - break; - - case TYPE_CODE_REF: - if (addressprint) - { - fprintf_filtered (stream, "LOC("); - print_address_numeric - (extract_address (valaddr, TARGET_PTR_BIT / HOST_CHAR_BIT), - 1, - stream); - fprintf_filtered (stream, ")"); - if (deref_ref) - fputs_filtered (": ", stream); - } - /* De-reference the reference. */ - if (deref_ref) - { - if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_UNDEF) - { - value_ptr deref_val = - value_at - (TYPE_TARGET_TYPE (type), - unpack_pointer (lookup_pointer_type (builtin_type_void), - valaddr), - NULL); - val_print (VALUE_TYPE (deref_val), - VALUE_CONTENTS (deref_val), - 0, - VALUE_ADDRESS (deref_val), stream, format, - deref_ref, recurse + 1, pretty); - } - else - fputs_filtered ("???", stream); - } - break; - - case TYPE_CODE_ENUM: - c_val_print (type, valaddr, 0, address, stream, format, - deref_ref, recurse, pretty); - break; - - case TYPE_CODE_RANGE: - if (TYPE_TARGET_TYPE (type)) - chill_val_print (TYPE_TARGET_TYPE (type), valaddr, 0, address, stream, - format, deref_ref, recurse, pretty); - break; - - case TYPE_CODE_MEMBER: - case TYPE_CODE_UNION: - case TYPE_CODE_FUNC: - case TYPE_CODE_VOID: - case TYPE_CODE_ERROR: - default: - /* Let's defer printing to the C printer, rather than - print an error message. FIXME! */ - c_val_print (type, valaddr, 0, address, stream, format, - deref_ref, recurse, pretty); - } - gdb_flush (stream); - return (0); -} - -/* Mutually recursive subroutines of cplus_print_value and c_val_print to - print out a structure's fields: cp_print_value_fields and cplus_print_value. - - TYPE, VALADDR, STREAM, RECURSE, and PRETTY have the - same meanings as in cplus_print_value and c_val_print. - - DONT_PRINT is an array of baseclass types that we - should not print, or zero if called from top level. */ - -static void -chill_print_value_fields (type, valaddr, stream, format, recurse, pretty, - dont_print) - struct type *type; - char *valaddr; - GDB_FILE *stream; - int format; - int recurse; - enum val_prettyprint pretty; - struct type **dont_print; -{ - int i, len; - int fields_seen = 0; - - CHECK_TYPEDEF (type); - - fprintf_filtered (stream, "["); - len = TYPE_NFIELDS (type); - if (len == 0) - { - fprintf_filtered (stream, "<No data fields>"); - } - else - { - for (i = 0; i < len; i++) - { - if (fields_seen) - { - fprintf_filtered (stream, ", "); - } - fields_seen = 1; - if (pretty) - { - fprintf_filtered (stream, "\n"); - print_spaces_filtered (2 + 2 * recurse, stream); - } - else - { - wrap_here (n_spaces (2 + 2 * recurse)); - } - fputs_filtered (".", stream); - fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), - language_chill, DMGL_NO_OPTS); - fputs_filtered (": ", stream); - if (TYPE_FIELD_PACKED (type, i)) - { - value_ptr v; - - /* Bitfields require special handling, especially due to byte - order problems. */ - v = value_from_longest (TYPE_FIELD_TYPE (type, i), - unpack_field_as_long (type, valaddr, i)); - - chill_val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0, 0, - stream, format, 0, recurse + 1, pretty); - } - else - { - chill_val_print (TYPE_FIELD_TYPE (type, i), - valaddr + TYPE_FIELD_BITPOS (type, i) / 8, 0, - 0, stream, format, 0, recurse + 1, pretty); - } - } - if (pretty) - { - fprintf_filtered (stream, "\n"); - print_spaces_filtered (2 * recurse, stream); - } - } - fprintf_filtered (stream, "]"); -} - -int -chill_value_print (val, stream, format, pretty) - value_ptr val; - GDB_FILE *stream; - int format; - enum val_prettyprint pretty; -{ - struct type *type = VALUE_TYPE (val); - struct type *real_type = check_typedef (type); - - /* If it is a pointer, indicate what it points to. - - Print type also if it is a reference. */ - - if (TYPE_CODE (real_type) == TYPE_CODE_PTR || - TYPE_CODE (real_type) == TYPE_CODE_REF) - { - char *valaddr = VALUE_CONTENTS (val); - CORE_ADDR addr = unpack_pointer (type, valaddr); - if (TYPE_CODE (type) != TYPE_CODE_PTR || addr != 0) - { - int i; - char *name = TYPE_NAME (type); - if (name) - fputs_filtered (name, stream); - else if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID) - fputs_filtered ("PTR", stream); - else - { - fprintf_filtered (stream, "("); - type_print (type, "", stream, -1); - fprintf_filtered (stream, ")"); - } - fprintf_filtered (stream, "("); - i = val_print (type, valaddr, 0, VALUE_ADDRESS (val), - stream, format, 1, 0, pretty); - fprintf_filtered (stream, ")"); - return i; - } - } - return (val_print (type, VALUE_CONTENTS (val), 0, - VALUE_ADDRESS (val), stream, format, 1, 0, pretty)); -} - - |