X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fjv-valprint.c;h=125e611388f95392866288c78ce9ff4adcc9e7ed;hb=8e069a981cbb9b33ccfbdd82ad7da5ce8b0c35b2;hp=d46c4b89b161c99453ef3da8612ba3a51b35bf34;hpb=8d2755a953cfc95a09b19010aa47d9c998079acf;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/jv-valprint.c b/gdb/jv-valprint.c index d46c4b89b1..125e611388 100644 --- a/gdb/jv-valprint.c +++ b/gdb/jv-valprint.c @@ -1,25 +1,26 @@ /* Support for printing Java values for GDB, the GNU debugger. - Copyright 1997 Free Software Foundation, Inc. -This file is part of GDB. + Copyright (C) 1997-2005, 2007-2012 Free Software Foundation, Inc. -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 file is part of GDB. -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. + 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 3 of the License, or + (at your option) any later version. -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. */ + 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, see . */ #include "defs.h" #include "symtab.h" #include "gdbtypes.h" +#include "gdbcore.h" #include "expression.h" #include "value.h" #include "demangle.h" @@ -27,117 +28,173 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "language.h" #include "jv-lang.h" #include "c-lang.h" +#include "annotate.h" +#include "gdb_string.h" -int -java_value_print (val, stream, format, pretty) - value_ptr val; - GDB_FILE *stream; - int format; - enum val_prettyprint pretty; +/* Local functions */ + +void +java_value_print (struct value *val, struct ui_file *stream, + const struct value_print_options *options) { - struct type *type = VALUE_TYPE (val); - CORE_ADDR address = VALUE_ADDRESS (val) + VALUE_OFFSET (val); + struct gdbarch *gdbarch = get_type_arch (value_type (val)); + enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); + struct type *type; + CORE_ADDR address; + int i; + const char *name; + struct value_print_options opts; + + type = value_type (val); + address = value_address (val); + if (is_object_type (type)) { - CORE_ADDR obj_addr = unpack_pointer (type, VALUE_CONTENTS (val)); + CORE_ADDR obj_addr; + + /* Get the run-time type, and cast the object into that. */ + + obj_addr = unpack_pointer (type, value_contents (val)); + if (obj_addr != 0) { - value_ptr obj_val - = value_at (TYPE_TARGET_TYPE (type), obj_addr, NULL); - type = type_from_class (java_class_from_object (obj_val)); + type = type_from_class (gdbarch, java_class_from_object (val)); type = lookup_pointer_type (type); + + val = value_at (type, address); } } - if (TYPE_CODE (type) == TYPE_CODE_PTR && ! value_logical_not (val)) - { - type_print (TYPE_TARGET_TYPE (type), "", stream, -1); - } - if (TYPE_CODE (type) == TYPE_CODE_STRUCT && TYPE_TAG_NAME (type) != NULL - && TYPE_TAG_NAME (type)[0] == '[') + if (TYPE_CODE (type) == TYPE_CODE_PTR && !value_logical_not (val)) + type_print (TYPE_TARGET_TYPE (type), "", stream, -1); + + name = TYPE_TAG_NAME (type); + if (TYPE_CODE (type) == TYPE_CODE_STRUCT && name != NULL + && (i = strlen (name), name[i - 1] == ']')) { - char buf4[4]; + gdb_byte buf4[4]; long length; unsigned int things_printed = 0; - int i = 0; - int reps; - read_memory (address + JAVA_OBJECT_SIZE, buf4, 4); - length = (long) extract_signed_integer (buf4, 4); + int reps; + struct type *el_type + = java_primitive_type_from_name (gdbarch, name, i - 2); + + i = 0; + read_memory (address + get_java_object_header_size (gdbarch), buf4, 4); + + length = (long) extract_signed_integer (buf4, 4, byte_order); fprintf_filtered (stream, "{length: %ld", length); - if (TYPE_TAG_NAME (type)[1] == 'L' - || TYPE_TAG_NAME (type)[1] == '[') + + if (el_type == NULL) { - CORE_ADDR element, next_element; - address += JAVA_OBJECT_SIZE + 4; /* Skip object header and length. */ - while (i < length && things_printed < print_max) + CORE_ADDR element; + CORE_ADDR next_element = -1; /* Dummy initial value. */ + + /* Skip object header and length. */ + address += get_java_object_header_size (gdbarch) + 4; + + while (i < length && things_printed < options->print_max) { - char buf[TARGET_PTR_BIT / HOST_CHAR_BIT]; + gdb_byte *buf; + + buf = alloca (gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT); fputs_filtered (", ", stream); wrap_here (n_spaces (2)); + if (i > 0) element = next_element; else { - read_memory (address, buf, sizeof(buf)); - address += TARGET_PTR_BIT / HOST_CHAR_BIT; - element = extract_address (buf, sizeof(buf)); + read_memory (address, buf, sizeof (buf)); + address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT; + /* FIXME: cagney/2003-05-24: Bogus or what. It + pulls a host sized pointer out of the target and + then extracts that as an address (while assuming + that the address is unsigned)! */ + element = extract_unsigned_integer (buf, sizeof (buf), + byte_order); } - for (reps = 1; i + reps < length; reps++) + + for (reps = 1; i + reps < length; reps++) { - read_memory (address, buf, sizeof(buf)); - address += TARGET_PTR_BIT / HOST_CHAR_BIT; - next_element = extract_address (buf, sizeof(buf)); + read_memory (address, buf, sizeof (buf)); + address += gdbarch_ptr_bit (gdbarch) / HOST_CHAR_BIT; + /* FIXME: cagney/2003-05-24: Bogus or what. It + pulls a host sized pointer out of the target and + then extracts that as an address (while assuming + that the address is unsigned)! */ + next_element = extract_unsigned_integer (buf, sizeof (buf), + byte_order); if (next_element != element) break; } + if (reps == 1) fprintf_filtered (stream, "%d: ", i); else fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1); + if (element == 0) fprintf_filtered (stream, "null"); else - fprintf_filtered (stream, "@%x", element); + fprintf_filtered (stream, "@%s", paddress (gdbarch, element)); + things_printed++; i += reps; } } else { - struct type *el_type = java_primitive_type (TYPE_TAG_NAME (type)[1]); - value_ptr v = allocate_value (el_type); - value_ptr next_v = allocate_value (el_type); - VALUE_ADDRESS (v) = address + JAVA_OBJECT_SIZE + 4; - VALUE_ADDRESS (next_v) = VALUE_ADDRESS (v); + struct value *v = allocate_value (el_type); + struct value *next_v = allocate_value (el_type); + + set_value_address (v, (address + + get_java_object_header_size (gdbarch) + 4)); + set_value_address (next_v, value_raw_address (v)); - while (i < length && things_printed < print_max) + while (i < length && things_printed < options->print_max) { fputs_filtered (", ", stream); wrap_here (n_spaces (2)); + if (i > 0) { - value_ptr tmp = next_v; next_v = v; v = tmp; + struct value *tmp; + + tmp = next_v; + next_v = v; + v = tmp; } else { - VALUE_LAZY (v) = 1; - VALUE_OFFSET (v) = 0; + set_value_lazy (v, 1); + set_value_offset (v, 0); } - VALUE_OFFSET (next_v) = VALUE_OFFSET (v); - for (reps = 1; i + reps < length; reps++) + + set_value_offset (next_v, value_offset (v)); + + for (reps = 1; i + reps < length; reps++) { - VALUE_LAZY (next_v) = 1; - VALUE_OFFSET (next_v) += TYPE_LENGTH (el_type); - if (memcmp (VALUE_CONTENTS (v), VALUE_CONTENTS (next_v), - TYPE_LENGTH (el_type)) != 0) + set_value_lazy (next_v, 1); + set_value_offset (next_v, value_offset (next_v) + + TYPE_LENGTH (el_type)); + value_fetch_lazy (next_v); + if (!(value_available_contents_eq + (v, value_embedded_offset (v), + next_v, value_embedded_offset (next_v), + TYPE_LENGTH (el_type)))) break; } + if (reps == 1) fprintf_filtered (stream, "%d: ", i); else fprintf_filtered (stream, "%d..%d: ", i, i + reps - 1); - val_print (VALUE_TYPE (v), VALUE_CONTENTS (v), 0, - stream, format, 2, 1, pretty); + + opts = *options; + opts.deref_ref = 1; + common_val_print (v, stream, 1, &opts, current_language); + things_printed++; i += reps; } @@ -145,30 +202,70 @@ java_value_print (val, stream, format, pretty) if (i < length) fprintf_filtered (stream, "..."); + fprintf_filtered (stream, "}"); - return 0; + + return; + } + + /* If it's type String, print it. */ + + if (TYPE_CODE (type) == TYPE_CODE_PTR + && TYPE_TARGET_TYPE (type) + && TYPE_TAG_NAME (TYPE_TARGET_TYPE (type)) + && strcmp (TYPE_TAG_NAME (TYPE_TARGET_TYPE (type)), + "java.lang.String") == 0 + && (options->format == 0 || options->format == 's') + && address != 0 + && value_as_address (val) != 0) + { + struct type *char_type; + struct value *data_val; + CORE_ADDR data; + struct value *boffset_val; + unsigned long boffset; + struct value *count_val; + unsigned long count; + struct value *mark; + + mark = value_mark (); /* Remember start of new values. */ + + data_val = value_struct_elt (&val, NULL, "data", NULL, NULL); + data = value_as_address (data_val); + + boffset_val = value_struct_elt (&val, NULL, "boffset", NULL, NULL); + boffset = value_as_address (boffset_val); + + count_val = value_struct_elt (&val, NULL, "count", NULL, NULL); + count = value_as_address (count_val); + + value_free_to_mark (mark); /* Release unnecessary values. */ + + char_type = builtin_java_type (gdbarch)->builtin_char; + val_print_string (char_type, NULL, data + boffset, count, stream, + options); + + return; } - return (val_print (type, VALUE_CONTENTS (val), address, - stream, format, 1, 0, pretty)); + opts = *options; + opts.deref_ref = 1; + common_val_print (val, stream, 0, &opts, current_language); } -/* TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and PRETTY have the +/* TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and OPTIONS have the same meanings as in cp_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. */ -void -java_print_value_fields (type, valaddr, address, stream, - format, recurse, pretty) - struct type *type; - char *valaddr; - CORE_ADDR address; - GDB_FILE *stream; - int format; - int recurse; - enum val_prettyprint pretty; +static void +java_print_value_fields (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) { int i, len, n_baseclasses; @@ -186,9 +283,9 @@ java_print_value_fields (type, valaddr, address, stream, { int boffset; struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); - char *basename = TYPE_NAME (baseclass); - char *base_valaddr; - + const char *basename = TYPE_NAME (baseclass); + const gdb_byte *base_valaddr; + if (BASETYPE_VIA_VIRTUAL (type, i)) continue; @@ -197,10 +294,10 @@ java_print_value_fields (type, valaddr, address, stream, boffset = 0; - if (pretty) + if (options->pretty) { fprintf_filtered (stream, "\n"); - print_spaces_filtered (2 * (recurse+1), stream); + print_spaces_filtered (2 * (recurse + 1), stream); } fputs_filtered ("<", stream); /* Not sure what the best notation is in the case where there is no @@ -210,30 +307,27 @@ java_print_value_fields (type, valaddr, address, stream, base_valaddr = valaddr; - java_print_value_fields (baseclass, base_valaddr, address + boffset, - stream, format, recurse+1, pretty); + java_print_value_fields (baseclass, base_valaddr, + offset + boffset, address, + stream, recurse + 1, val, options); fputs_filtered (", ", stream); - - flush_it: - ; } - } if (!len && n_baseclasses == 1) fprintf_filtered (stream, ""); else { - extern int inspect_it; int fields_seen = 0; for (i = n_baseclasses; i < len; i++) { /* If requested, skip printing of static fields. */ - if (TYPE_FIELD_STATIC (type, i)) + if (field_is_static (&TYPE_FIELD (type, i))) { - char *name = TYPE_FIELD_NAME (type, i); - if (!static_field_print) + const char *name = TYPE_FIELD_NAME (type, i); + + if (!options->static_field_print) continue; if (name != NULL && strcmp (name, "class") == 0) continue; @@ -242,7 +336,7 @@ java_print_value_fields (type, valaddr, address, stream, fprintf_filtered (stream, ", "); else if (n_baseclasses > 0) { - if (pretty) + if (options->pretty) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 + 2 * recurse, stream); @@ -253,22 +347,22 @@ java_print_value_fields (type, valaddr, address, stream, } fields_seen = 1; - if (pretty) + if (options->pretty) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 + 2 * recurse, stream); } - else + else { wrap_here (n_spaces (2 + 2 * recurse)); } - if (inspect_it) + if (options->inspect_it) { if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR) fputs_filtered ("\"( ptr \"", stream); else fputs_filtered ("\"( nodef \"", stream); - if (TYPE_FIELD_STATIC (type, i)) + if (field_is_static (&TYPE_FIELD (type, i))) fputs_filtered ("static ", stream); fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), language_cplus, @@ -283,7 +377,7 @@ java_print_value_fields (type, valaddr, address, stream, { annotate_field_begin (TYPE_FIELD_TYPE (type, i)); - if (TYPE_FIELD_STATIC (type, i)) + if (field_is_static (&TYPE_FIELD (type, i))) fputs_filtered ("static ", stream); fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), language_cplus, @@ -293,58 +387,85 @@ java_print_value_fields (type, valaddr, address, stream, annotate_field_value (); } - if (!TYPE_FIELD_STATIC (type, i) && TYPE_FIELD_PACKED (type, i)) + if (!field_is_static (&TYPE_FIELD (type, i)) + && TYPE_FIELD_PACKED (type, i)) { - value_ptr v; + struct value *v; /* Bitfields require special handling, especially due to byte - order problems. */ + order problems. */ if (TYPE_FIELD_IGNORE (type, i)) { - fputs_filtered ("", stream); + fputs_filtered ("", stream); + } + else if (value_bits_synthetic_pointer (val, + TYPE_FIELD_BITPOS (type, + i), + TYPE_FIELD_BITSIZE (type, + i))) + { + fputs_filtered (_(""), stream); + } + else if (!value_bits_valid (val, TYPE_FIELD_BITPOS (type, i), + TYPE_FIELD_BITSIZE (type, i))) + { + val_print_optimized_out (stream); } else { - v = value_from_longest (TYPE_FIELD_TYPE (type, i), - unpack_field_as_long (type, valaddr, i)); + struct value_print_options opts; - val_print (TYPE_FIELD_TYPE(type, i), VALUE_CONTENTS (v), 0, - stream, format, 0, recurse + 1, pretty); + v = value_field_bitfield (type, i, valaddr, offset, val); + + opts = *options; + opts.deref_ref = 0; + common_val_print (v, stream, recurse + 1, + &opts, current_language); } } else { if (TYPE_FIELD_IGNORE (type, i)) { - fputs_filtered ("", stream); + fputs_filtered ("", stream); } - else if (TYPE_FIELD_STATIC (type, i)) + else if (field_is_static (&TYPE_FIELD (type, i))) { - value_ptr v = value_static_field (type, i); + struct value *v = value_static_field (type, i); + if (v == NULL) - fputs_filtered ("", stream); + val_print_optimized_out (stream); else { - struct type *t = check_typedef (VALUE_TYPE (v)); + struct value_print_options opts; + struct type *t = check_typedef (value_type (v)); + if (TYPE_CODE (t) == TYPE_CODE_STRUCT) v = value_addr (v); - val_print (VALUE_TYPE (v), - VALUE_CONTENTS (v), VALUE_ADDRESS (v), - stream, format, 0, recurse+1, pretty); + opts = *options; + opts.deref_ref = 0; + common_val_print (v, stream, recurse + 1, + &opts, current_language); } } + else if (TYPE_FIELD_TYPE (type, i) == NULL) + fputs_filtered ("", stream); else { - val_print (TYPE_FIELD_TYPE (type, i), - valaddr + TYPE_FIELD_BITPOS (type, i) / 8, - address + TYPE_FIELD_BITPOS (type, i) / 8, - stream, format, 0, recurse + 1, pretty); + struct value_print_options opts = *options; + + opts.deref_ref = 0; + val_print (TYPE_FIELD_TYPE (type, i), + valaddr, + offset + TYPE_FIELD_BITPOS (type, i) / 8, + address, stream, recurse + 1, val, &opts, + current_language); } } annotate_field_end (); } - if (pretty) + if (options->pretty) { fprintf_filtered (stream, "\n"); print_spaces_filtered (2 * recurse, stream); @@ -353,85 +474,88 @@ java_print_value_fields (type, valaddr, address, stream, fprintf_filtered (stream, "}"); } +/* See val_print for a description of the various parameters of this + function; they are identical. The semantics of the return value is + also identical to val_print. */ + int -java_val_print (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; +java_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) { - register unsigned int i = 0; /* Number of characters printed */ - struct type *elttype; + struct gdbarch *gdbarch = get_type_arch (type); + unsigned int i = 0; /* Number of characters printed. */ + struct type *target_type; CORE_ADDR addr; CHECK_TYPEDEF (type); switch (TYPE_CODE (type)) { case TYPE_CODE_PTR: - if (format && format != 's') + if (options->format && options->format != 's') { - print_scalar_formatted (valaddr, type, format, 0, stream); + val_print_scalar_formatted (type, valaddr, embedded_offset, + val, options, 0, stream); break; } -#if 0 - if (vtblprint && cp_is_vtbl_ptr_type(type)) - { - /* Print the unmangled name if desired. */ - /* Print vtable entry - we only get here if we ARE using - -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */ - print_address_demangle(extract_address (valaddr, TYPE_LENGTH (type)), - stream, demangle); - break; - } -#endif - addr = unpack_pointer (type, valaddr); + addr = unpack_pointer (type, valaddr + embedded_offset); if (addr == 0) { fputs_filtered ("null", stream); return i; } - elttype = check_typedef (TYPE_TARGET_TYPE (type)); - { - print_unpacked_pointer: - elttype = check_typedef (TYPE_TARGET_TYPE (type)); + target_type = check_typedef (TYPE_TARGET_TYPE (type)); - 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 (TYPE_CODE (target_type) == TYPE_CODE_FUNC) + { + /* Try to print what function it points to. */ + print_address_demangle (gdbarch, addr, stream, demangle); + /* Return value is irrelevant except for string pointers. */ + return (0); + } - if (addressprint && format != 's') - { - fputs_filtered ("@", stream); - print_longest (stream, 'x', 0, (ULONGEST) addr); - } - return i; + if (options->addressprint && options->format != 's') + { + fputs_filtered ("@", stream); + print_longest (stream, 'x', 0, (ULONGEST) addr); } + + return i; + case TYPE_CODE_CHAR: - format = format ? format : output_format; - if (format) + case TYPE_CODE_INT: + /* Can't just call c_val_print because that prints bytes as C + chars. */ + if (options->format || options->output_format) { - print_scalar_formatted (valaddr, type, format, 0, stream); + struct value_print_options opts = *options; + + opts.format = (options->format ? options->format + : options->output_format); + val_print_scalar_formatted (type, valaddr, embedded_offset, + val, &opts, 0, stream); } + else if (TYPE_CODE (type) == TYPE_CODE_CHAR + || (TYPE_CODE (type) == TYPE_CODE_INT + && TYPE_LENGTH (type) == 2 + && strcmp (TYPE_NAME (type), "char") == 0)) + LA_PRINT_CHAR ((int) unpack_long (type, valaddr + embedded_offset), + type, stream); else - { - LA_PRINT_CHAR ((int) unpack_long (type, valaddr), stream); - } + val_print_type_code_int (type, valaddr + embedded_offset, stream); break; + case TYPE_CODE_STRUCT: - java_print_value_fields (type, valaddr, address, stream, format, - recurse, pretty); + java_print_value_fields (type, valaddr, embedded_offset, + address, stream, recurse, val, options); break; + default: - return c_val_print (type, valaddr, address, stream, format, - deref_ref, recurse, pretty); + return c_val_print (type, valaddr, embedded_offset, address, stream, + recurse, val, options); } + + return 0; }