/* Java language support routines for GDB, the GNU debugger.
- Copyright 1997 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2007
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "symtab.h"
#include "c-lang.h"
#include "jv-lang.h"
#include "gdbcore.h"
+#include "block.h"
+#include "demangle.h"
+#include "dictionary.h"
+#include <ctype.h>
struct type *java_int_type;
struct type *java_byte_type;
struct type *java_double_type;
struct type *java_void_type;
-struct type *java_object_type;
+/* Local functions */
+
+extern void _initialize_java_language (void);
+
+static int java_demangled_signature_length (char *);
+static void java_demangled_signature_copy (char *, char *);
+
+static struct symtab *get_java_class_symtab (void);
+static char *get_java_utf8_name (struct obstack *obstack, struct value *name);
+static int java_class_is_primitive (struct value *clas);
+static struct value *java_value_string (char *ptr, int len);
+
+static void java_emit_char (int c, struct ui_file * stream, int quoter);
+
+static char *java_class_name_from_physname (const char *physname);
/* This objfile contains symtabs that have been dynamically created
to record dynamically loaded Java classes and dynamically
compiled java methods. */
-struct objfile *dynamics_objfile = NULL;
-struct type *java_link_class_type PARAMS((struct type*, value_ptr));
+static struct objfile *dynamics_objfile = NULL;
-struct objfile *
-get_dynamics_objfile ()
+static struct type *java_link_class_type (struct type *, struct value *);
+
+/* FIXME: carlton/2003-02-04: This is the main or only caller of
+ allocate_objfile with first argument NULL; as a result, this code
+ breaks every so often. Somebody should write a test case that
+ exercises GDB in various ways (e.g. something involving loading a
+ dynamic library) after this code has been called. */
+
+static struct objfile *
+get_dynamics_objfile (void)
{
if (dynamics_objfile == NULL)
{
static struct symtab *class_symtab = NULL;
-/* Maximum number of class in class_symtab before relocation is needed. */
-
-static int class_symtab_space;
+static void free_class_block (struct symtab *symtab);
-struct symtab *
-get_java_class_symtab ()
+static struct symtab *
+get_java_class_symtab (void)
{
if (class_symtab == NULL)
{
- struct objfile *objfile = get_dynamics_objfile();
+ struct objfile *objfile = get_dynamics_objfile ();
struct blockvector *bv;
struct block *bl;
class_symtab = allocate_symtab ("<java-classes>", objfile);
class_symtab->language = language_java;
bv = (struct blockvector *)
- obstack_alloc (&objfile->symbol_obstack, sizeof (struct blockvector));
+ obstack_alloc (&objfile->objfile_obstack,
+ sizeof (struct blockvector) + sizeof (struct block *));
BLOCKVECTOR_NBLOCKS (bv) = 1;
BLOCKVECTOR (class_symtab) = bv;
/* Allocate dummy STATIC_BLOCK. */
- bl = (struct block *)
- obstack_alloc (&objfile->symbol_obstack, sizeof (struct block));
- BLOCK_NSYMS (bl) = 0;
- BLOCK_START (bl) = 0;
- BLOCK_END (bl) = 0;
- BLOCK_FUNCTION (bl) = NULL;
- BLOCK_SUPERBLOCK (bl) = NULL;
- BLOCK_GCC_COMPILED (bl) = 0;
+ bl = allocate_block (&objfile->objfile_obstack);
+ BLOCK_DICT (bl) = dict_create_linear (&objfile->objfile_obstack,
+ NULL);
BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK) = bl;
- /* Allocate GLOBAL_BLOCK. This has to be relocatable. */
- class_symtab_space = 128;
- bl = (struct block *)
- mmalloc (objfile->md,
- sizeof (struct block)
- + ((class_symtab_space - 1) * sizeof (struct symbol *)));
- *bl = *BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
+ /* Allocate GLOBAL_BLOCK. */
+ bl = allocate_block (&objfile->objfile_obstack);
+ BLOCK_DICT (bl) = dict_create_hashed_expandable ();
BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl;
- class_symtab->free_ptr = (char *) bl;
+ class_symtab->free_func = free_class_block;
}
return class_symtab;
}
static void
-add_class_symtab_symbol (sym)
- struct symbol *sym;
+add_class_symtab_symbol (struct symbol *sym)
{
struct symtab *symtab = get_java_class_symtab ();
struct blockvector *bv = BLOCKVECTOR (symtab);
- struct block *bl = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
- if (BLOCK_NSYMS (bl) >= class_symtab_space)
- {
- /* Need to re-allocate. */
- class_symtab_space *= 2;
- bl = (struct block *)
- mrealloc (symtab->objfile->md, bl,
- sizeof (struct block)
- + ((class_symtab_space - 1) * sizeof (struct symbol *)));
- class_symtab->free_ptr = (char *) bl;
- BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK) = bl;
- }
-
- BLOCK_SYM (bl, BLOCK_NSYMS (bl)) = sym;
- BLOCK_NSYMS (bl) = BLOCK_NSYMS (bl) + 1;
+ dict_add_symbol (BLOCK_DICT (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)), sym);
}
-struct symbol *
-add_class_symbol (type, addr)
- struct type *type;
- CORE_ADDR addr;
+static struct symbol *add_class_symbol (struct type *type, CORE_ADDR addr);
+
+static struct symbol *
+add_class_symbol (struct type *type, CORE_ADDR addr)
{
struct symbol *sym;
sym = (struct symbol *)
- obstack_alloc (&dynamics_objfile->symbol_obstack, sizeof (struct symbol));
+ obstack_alloc (&dynamics_objfile->objfile_obstack, sizeof (struct symbol));
memset (sym, 0, sizeof (struct symbol));
SYMBOL_LANGUAGE (sym) = language_java;
- SYMBOL_NAME (sym) = TYPE_NAME (type);
+ DEPRECATED_SYMBOL_NAME (sym) = TYPE_TAG_NAME (type);
SYMBOL_CLASS (sym) = LOC_TYPEDEF;
- /* SYMBOL_VALUE (sym) = valu;*/
+ /* SYMBOL_VALUE (sym) = valu; */
SYMBOL_TYPE (sym) = type;
- SYMBOL_NAMESPACE (sym) = STRUCT_NAMESPACE;
+ SYMBOL_DOMAIN (sym) = STRUCT_DOMAIN;
SYMBOL_VALUE_ADDRESS (sym) = addr;
return sym;
}
+
+/* Free the dynamic symbols block. */
+static void
+free_class_block (struct symtab *symtab)
+{
+ struct blockvector *bv = BLOCKVECTOR (symtab);
+ struct block *bl = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+
+ dict_free (BLOCK_DICT (bl));
+}
#endif
struct type *
-java_lookup_class (name)
- char *name;
+java_lookup_class (char *name)
{
struct symbol *sym;
- sym = lookup_symbol (name, expression_context_block, STRUCT_NAMESPACE,
+ sym = lookup_symbol (name, expression_context_block, STRUCT_DOMAIN,
(int *) 0, (struct symtab **) NULL);
if (sym != NULL)
return SYMBOL_TYPE (sym);
if (called from parser)
{
call lookup_class (or similar) in inferior;
- if not found:
+ if not
+ found:
return NULL;
addr = found in inferior;
}
type = alloc_type (objfile);
TYPE_CODE (type) = TYPE_CODE_STRUCT;
INIT_CPLUS_SPECIFIC (type);
- TYPE_NAME (type) = obsavestring (name, strlen(name), &objfile->type_obstack);
+ TYPE_TAG_NAME (type) = obsavestring (name, strlen (name), &objfile->objfile_obstack);
TYPE_FLAGS (type) |= TYPE_FLAG_STUB;
TYPE ? = addr;
return type;
a name given by NAME (which has type Utf8Const*). */
char *
-get_java_utf8_name (obstack, name)
- struct obstack *obstack;
- value_ptr name;
+get_java_utf8_name (struct obstack *obstack, struct value *name)
{
char *chrs;
- value_ptr temp = name;
+ struct value *temp = name;
int name_length;
CORE_ADDR data_addr;
temp = value_struct_elt (&temp, NULL, "length", NULL, "structure");
name_length = (int) value_as_long (temp);
- data_addr = VALUE_ADDRESS (temp) + VALUE_OFFSET (temp)
- + TYPE_LENGTH (VALUE_TYPE (temp));
- chrs = obstack_alloc (obstack, name_length+1);
- chrs [name_length] = '\0';
- read_memory_section (data_addr, chrs, name_length, NULL);
+ data_addr = VALUE_ADDRESS (temp) + value_offset (temp)
+ + TYPE_LENGTH (value_type (temp));
+ chrs = obstack_alloc (obstack, name_length + 1);
+ chrs[name_length] = '\0';
+ read_memory (data_addr, (gdb_byte *) chrs, name_length);
return chrs;
}
-value_ptr
-java_class_from_object (obj_val)
- value_ptr obj_val;
+struct value *
+java_class_from_object (struct value *obj_val)
{
- value_ptr dtable_val = value_struct_elt (&obj_val, NULL, "dtable", NULL, "structure");
- return value_struct_elt (&dtable_val, NULL, "class", NULL, "structure");
+ /* This is all rather inefficient, since the offsets of vtable and
+ class are fixed. FIXME */
+ struct value *vtable_val;
+
+ if (TYPE_CODE (value_type (obj_val)) == TYPE_CODE_PTR
+ && TYPE_LENGTH (TYPE_TARGET_TYPE (value_type (obj_val))) == 0)
+ obj_val = value_at (get_java_object_type (),
+ value_as_address (obj_val));
+
+ vtable_val = value_struct_elt (&obj_val, NULL, "vtable", NULL, "structure");
+ return value_struct_elt (&vtable_val, NULL, "class", NULL, "structure");
}
/* Check if CLASS_IS_PRIMITIVE(value of clas): */
-int
-java_class_is_primitive (clas)
- value_ptr clas;
+static int
+java_class_is_primitive (struct value *clas)
{
- value_ptr dtable = value_struct_elt (&clas, NULL, "dtable", NULL, "struct");
- CORE_ADDR i = value_as_pointer (dtable);
+ struct value *vtable = value_struct_elt (&clas, NULL, "vtable", NULL, "struct");
+ CORE_ADDR i = value_as_address (vtable);
return (int) (i & 0x7fffffff) == (int) 0x7fffffff;
}
-/* Read a Kaffe Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */
+/* Read a GCJ Class object, and generated a gdb (TYPE_CODE_STRUCT) type. */
struct type *
-type_from_class (clas)
- value_ptr clas;
+type_from_class (struct value *clas)
{
struct type *type;
char *name;
- value_ptr temp;
- struct objfile *objfile = get_dynamics_objfile();
- value_ptr utf8_name;
+ struct value *temp;
+ struct objfile *objfile;
+ struct value *utf8_name;
char *nptr;
CORE_ADDR addr;
struct block *bl;
- int i;
+ struct dict_iterator iter;
int is_array = 0;
- type = check_typedef (VALUE_TYPE (clas));
+ type = check_typedef (value_type (clas));
if (TYPE_CODE (type) == TYPE_CODE_PTR)
{
if (value_logical_not (clas))
return NULL;
clas = value_ind (clas);
}
- addr = VALUE_ADDRESS (clas) + VALUE_OFFSET (clas);
+ addr = VALUE_ADDRESS (clas) + value_offset (clas);
+#if 0
get_java_class_symtab ();
bl = BLOCKVECTOR_BLOCK (BLOCKVECTOR (class_symtab), GLOBAL_BLOCK);
- for (i = BLOCK_NSYMS (bl); --i >= 0; )
+ ALL_BLOCK_SYMBOLS (block, iter, sym)
{
- struct symbol *sym = BLOCK_SYM (bl, i);
if (SYMBOL_VALUE_ADDRESS (sym) == addr)
return SYMBOL_TYPE (sym);
}
+#endif
+ objfile = get_dynamics_objfile ();
if (java_class_is_primitive (clas))
{
- value_ptr sig;
+ struct value *sig;
temp = clas;
- sig = value_struct_elt (&temp, NULL, "msize", NULL, "structure");
+ sig = value_struct_elt (&temp, NULL, "method_count", NULL, "structure");
return java_primitive_type (value_as_long (sig));
}
/* if clasloader non-null, prepend loader address. FIXME */
temp = clas;
utf8_name = value_struct_elt (&temp, NULL, "name", NULL, "structure");
- name = get_java_utf8_name (&objfile->type_obstack, utf8_name);
+ name = get_java_utf8_name (&objfile->objfile_obstack, utf8_name);
+ for (nptr = name; *nptr != 0; nptr++)
+ {
+ if (*nptr == '/')
+ *nptr = '.';
+ }
+
+ type = java_lookup_class (name);
+ if (type != NULL)
+ return type;
type = alloc_type (objfile);
TYPE_CODE (type) = TYPE_CODE_STRUCT;
if (name[0] == '[')
{
+ char *signature = name;
+ int namelen = java_demangled_signature_length (signature);
+ if (namelen > strlen (name))
+ name = obstack_alloc (&objfile->objfile_obstack, namelen + 1);
+ java_demangled_signature_copy (name, signature);
+ name[namelen] = '\0';
is_array = 1;
temp = clas;
/* Set array element type. */
temp = value_struct_elt (&temp, NULL, "methods", NULL, "structure");
- VALUE_TYPE (temp) = lookup_pointer_type (VALUE_TYPE (clas));
+ deprecated_set_value_type (temp, lookup_pointer_type (value_type (clas)));
TYPE_TARGET_TYPE (type) = type_from_class (temp);
}
- for (nptr = name; *nptr != 0; nptr++)
- {
- if (*nptr == '/')
- *nptr = '.';
- }
ALLOCATE_CPLUS_STRUCT_TYPE (type);
- TYPE_NAME (type) = name;
+ TYPE_TAG_NAME (type) = name;
add_class_symtab_symbol (add_class_symbol (type, addr));
return java_link_class_type (type, clas);
}
-/* Fill in class TYPE with data from the CLAS value. */
+/* Fill in class TYPE with data from the CLAS value. */
struct type *
-java_link_class_type (type, clas)
- struct type *type;
- value_ptr clas;
+java_link_class_type (struct type *type, struct value *clas)
{
- value_ptr temp;
+ struct value *temp;
char *unqualified_name;
- char *name = TYPE_NAME (type);
+ char *name = TYPE_TAG_NAME (type);
int ninterfaces, nfields, nmethods;
int type_is_object = 0;
struct fn_field *fn_fields;
struct fn_fieldlist *fn_fieldlists;
- value_ptr fields, field, method, methods;
+ struct value *fields;
+ struct value *methods;
+ struct value *method = NULL;
+ struct value *field = NULL;
int i, j;
- struct objfile *objfile = get_dynamics_objfile();
+ struct objfile *objfile = get_dynamics_objfile ();
struct type *tsuper;
unqualified_name = strrchr (name, '.');
#endif
TYPE_N_BASECLASSES (type) = (tsuper == NULL ? 0 : 1) + ninterfaces;
temp = clas;
- nfields = value_as_long (value_struct_elt (&temp, NULL, "nfields", NULL, "structure"));
+ nfields = value_as_long (value_struct_elt (&temp, NULL, "field_count", NULL, "structure"));
nfields += TYPE_N_BASECLASSES (type);
+ nfields++; /* Add one for dummy "class" field. */
TYPE_NFIELDS (type) = nfields;
TYPE_FIELDS (type) = (struct field *)
TYPE_ALLOC (type, sizeof (struct field) * nfields);
SET_TYPE_FIELD_PRIVATE (type, 0);
}
-
- temp = clas;
- temp = value_struct_elt (&temp, NULL, "bfsize", NULL, "structure");
- TYPE_LENGTH (type) = value_as_long (temp);
+ i = strlen (name);
+ if (i > 2 && name[i - 1] == ']' && tsuper != NULL)
+ {
+ /* FIXME */
+ TYPE_LENGTH (type) = TYPE_LENGTH (tsuper) + 4; /* size with "length" */
+ }
+ else
+ {
+ temp = clas;
+ temp = value_struct_elt (&temp, NULL, "size_in_bytes", NULL, "structure");
+ TYPE_LENGTH (type) = value_as_long (temp);
+ }
fields = NULL;
- for (i = TYPE_N_BASECLASSES (type); i < nfields; i++)
+ nfields--; /* First set up dummy "class" field. */
+ SET_FIELD_PHYSADDR (TYPE_FIELD (type, nfields),
+ VALUE_ADDRESS (clas) + value_offset (clas));
+ TYPE_FIELD_NAME (type, nfields) = "class";
+ TYPE_FIELD_TYPE (type, nfields) = value_type (clas);
+ SET_TYPE_FIELD_PRIVATE (type, nfields);
+
+ for (i = TYPE_N_BASECLASSES (type); i < nfields; i++)
{
int accflags;
int boffset;
field = value_ind (fields);
}
else
- { /* Re-use field value for next field. */
- VALUE_ADDRESS (field) += TYPE_LENGTH (VALUE_TYPE (field));
- VALUE_LAZY (field) = 1;
+ { /* Re-use field value for next field. */
+ VALUE_ADDRESS (field) += TYPE_LENGTH (value_type (field));
+ set_value_lazy (field, 1);
}
temp = field;
temp = value_struct_elt (&temp, NULL, "name", NULL, "structure");
TYPE_FIELD_NAME (type, i) =
- get_java_utf8_name (&objfile->type_obstack, temp);
+ get_java_utf8_name (&objfile->objfile_obstack, temp);
temp = field;
accflags = value_as_long (value_struct_elt (&temp, NULL, "accflags",
NULL, "structure"));
temp = field;
temp = value_struct_elt (&temp, NULL, "info", NULL, "structure");
boffset = value_as_long (value_struct_elt (&temp, NULL, "boffset",
- NULL, "structure"));
- if (accflags & 0x0001) /* public access */
+ NULL, "structure"));
+ if (accflags & 0x0001) /* public access */
{
/* ??? */
}
- if (accflags & 0x0002) /* private access */
+ if (accflags & 0x0002) /* private access */
{
SET_TYPE_FIELD_PRIVATE (type, i);
}
- if (accflags & 0x0004) /* protected access */
+ if (accflags & 0x0004) /* protected access */
{
SET_TYPE_FIELD_PROTECTED (type, i);
}
- if (accflags & 0x0008) /* ACC_STATIC */
- SET_FIELD_PHYSADDR(TYPE_FIELD(type, i), boffset);
+ if (accflags & 0x0008) /* ACC_STATIC */
+ SET_FIELD_PHYSADDR (TYPE_FIELD (type, i), boffset);
else
TYPE_FIELD_BITPOS (type, i) = 8 * boffset;
- if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */
+ if (accflags & 0x8000) /* FIELD_UNRESOLVED_FLAG */
{
- TYPE_FIELD_TYPE (type, i) = get_java_object_type (); /* FIXME */
+ TYPE_FIELD_TYPE (type, i) = get_java_object_type (); /* FIXME */
}
else
{
}
temp = clas;
- nmethods = value_as_long (value_struct_elt (&temp, NULL, "nmethods",
+ nmethods = value_as_long (value_struct_elt (&temp, NULL, "method_count",
NULL, "structure"));
TYPE_NFN_FIELDS_TOTAL (type) = nmethods;
j = nmethods * sizeof (struct fn_field);
- fn_fields = (struct fn_field*)
- obstack_alloc (&dynamics_objfile->symbol_obstack, j);
+ fn_fields = (struct fn_field *)
+ obstack_alloc (&dynamics_objfile->objfile_obstack, j);
memset (fn_fields, 0, j);
- fn_fieldlists = (struct fn_fieldlist*)
+ fn_fieldlists = (struct fn_fieldlist *)
alloca (nmethods * sizeof (struct fn_fieldlist));
methods = NULL;
- for (i = 0; i < nmethods; i++)
+ for (i = 0; i < nmethods; i++)
{
char *mname;
int k;
method = value_ind (methods);
}
else
- { /* Re-use method value for next method. */
- VALUE_ADDRESS (method) += TYPE_LENGTH (VALUE_TYPE (method));
- VALUE_LAZY (method) = 1;
+ { /* Re-use method value for next method. */
+ VALUE_ADDRESS (method) += TYPE_LENGTH (value_type (method));
+ set_value_lazy (method, 1);
}
/* Get method name. */
temp = method;
temp = value_struct_elt (&temp, NULL, "name", NULL, "structure");
- mname = get_java_utf8_name (&objfile->type_obstack, temp);
+ mname = get_java_utf8_name (&objfile->objfile_obstack, temp);
if (strcmp (mname, "<init>") == 0)
mname = unqualified_name;
* is worth it. Note that we do maintain the order of methods
* in the inferior's Method table (as long as that is grouped
* by method name), which I think is desirable. --PB */
- for (k = 0, j = TYPE_NFN_FIELDS (type); ; )
+ for (k = 0, j = TYPE_NFN_FIELDS (type);;)
{
if (--j < 0)
- { /* No match - new method name. */
- j = TYPE_NFN_FIELDS(type)++;
+ { /* No match - new method name. */
+ j = TYPE_NFN_FIELDS (type)++;
fn_fieldlists[j].name = mname;
fn_fieldlists[j].length = 1;
fn_fieldlists[j].fn_fields = &fn_fields[i];
break;
}
if (strcmp (mname, fn_fieldlists[j].name) == 0)
- { /* Found an existing method with the same name. */
+ { /* Found an existing method with the same name. */
int l;
if (mname != unqualified_name)
- obstack_free (&objfile->type_obstack, mname);
+ obstack_free (&objfile->objfile_obstack, mname);
mname = fn_fieldlists[j].name;
fn_fieldlists[j].length++;
- k = i - k; /* Index of new slot. */
+ k = i - k; /* Index of new slot. */
/* Shift intervening fn_fields (between k and i) down. */
- for (l = i; l > k; l--) fn_fields[l] = fn_fields[l-1];
- for (l = TYPE_NFN_FIELDS (type); --l > j; )
+ for (l = i; l > k; l--)
+ fn_fields[l] = fn_fields[l - 1];
+ for (l = TYPE_NFN_FIELDS (type); --l > j;)
fn_fieldlists[l].fn_fields++;
break;
}
}
fn_fields[k].physname = "";
fn_fields[k].is_stub = 1;
- fn_fields[k].type = make_function_type (java_void_type, NULL); /* FIXME*/
+ fn_fields[k].type = make_function_type (java_void_type, NULL); /* FIXME */
TYPE_CODE (fn_fields[k].type) = TYPE_CODE_METHOD;
}
- j = TYPE_NFN_FIELDS(type) * sizeof (struct fn_fieldlist);
- TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist*)
- obstack_alloc (&dynamics_objfile->symbol_obstack, j);
+ j = TYPE_NFN_FIELDS (type) * sizeof (struct fn_fieldlist);
+ TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
+ obstack_alloc (&dynamics_objfile->objfile_obstack, j);
memcpy (TYPE_FN_FIELDLISTS (type), fn_fieldlists, j);
-
+
return type;
}
-struct type*
-get_java_object_type ()
+static struct type *java_object_type;
+
+struct type *
+get_java_object_type (void)
{
+ if (java_object_type == NULL)
+ {
+ struct symbol *sym;
+ sym = lookup_symbol ("java.lang.Object", NULL, STRUCT_DOMAIN,
+ (int *) 0, (struct symtab **) NULL);
+ if (sym == NULL)
+ error (_("cannot find java.lang.Object"));
+ java_object_type = SYMBOL_TYPE (sym);
+ }
return java_object_type;
}
int
-is_object_type (type)
- struct type *type;
+get_java_object_header_size (void)
+{
+ struct type *objtype = get_java_object_type ();
+ if (objtype == NULL)
+ return (2 * gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT);
+ else
+ return TYPE_LENGTH (objtype);
+}
+
+int
+is_object_type (struct type *type)
{
CHECK_TYPEDEF (type);
if (TYPE_CODE (type) == TYPE_CODE_PTR)
return 0;
while (TYPE_N_BASECLASSES (ttype) > 0)
ttype = TYPE_BASECLASS (ttype, 0);
- name = TYPE_NAME (ttype);
+ name = TYPE_TAG_NAME (ttype);
if (name != NULL && strcmp (name, "java.lang.Object") == 0)
return 1;
- name = TYPE_NFIELDS (ttype) > 0 ? TYPE_FIELD_NAME (ttype, 0) : (char*)0;
- if (name != NULL && strcmp (name, "dtable") == 0)
+ name = TYPE_NFIELDS (ttype) > 0 ? TYPE_FIELD_NAME (ttype, 0) : (char *) 0;
+ if (name != NULL && strcmp (name, "vtable") == 0)
{
if (java_object_type == NULL)
java_object_type = type;
return 0;
}
-struct type*
-java_primitive_type (signature)
- int signature;
+struct type *
+java_primitive_type (int signature)
{
switch (signature)
{
- case 'B': return java_byte_type;
- case 'S': return java_short_type;
- case 'I': return java_int_type;
- case 'J': return java_long_type;
- case 'Z': return java_boolean_type;
- case 'C': return java_char_type;
- case 'F': return java_float_type;
- case 'D': return java_double_type;
- case 'V': return java_void_type;
+ case 'B':
+ return java_byte_type;
+ case 'S':
+ return java_short_type;
+ case 'I':
+ return java_int_type;
+ case 'J':
+ return java_long_type;
+ case 'Z':
+ return java_boolean_type;
+ case 'C':
+ return java_char_type;
+ case 'F':
+ return java_float_type;
+ case 'D':
+ return java_double_type;
+ case 'V':
+ return java_void_type;
}
- error ("unknown signature '%c' for primitive type", (char) signature);
+ error (_("unknown signature '%c' for primitive type"), (char) signature);
+}
+
+/* If name[0 .. namelen-1] is the name of a primitive Java type,
+ return that type. Otherwise, return NULL. */
+
+struct type *
+java_primitive_type_from_name (char *name, int namelen)
+{
+ switch (name[0])
+ {
+ case 'b':
+ if (namelen == 4 && memcmp (name, "byte", 4) == 0)
+ return java_byte_type;
+ if (namelen == 7 && memcmp (name, "boolean", 7) == 0)
+ return java_boolean_type;
+ break;
+ case 'c':
+ if (namelen == 4 && memcmp (name, "char", 4) == 0)
+ return java_char_type;
+ case 'd':
+ if (namelen == 6 && memcmp (name, "double", 6) == 0)
+ return java_double_type;
+ break;
+ case 'f':
+ if (namelen == 5 && memcmp (name, "float", 5) == 0)
+ return java_float_type;
+ break;
+ case 'i':
+ if (namelen == 3 && memcmp (name, "int", 3) == 0)
+ return java_int_type;
+ break;
+ case 'l':
+ if (namelen == 4 && memcmp (name, "long", 4) == 0)
+ return java_long_type;
+ break;
+ case 's':
+ if (namelen == 5 && memcmp (name, "short", 5) == 0)
+ return java_short_type;
+ break;
+ case 'v':
+ if (namelen == 4 && memcmp (name, "void", 4) == 0)
+ return java_void_type;
+ break;
+ }
+ return NULL;
+}
+
+/* Return the length (in bytes) of demangled name of the Java type
+ signature string SIGNATURE. */
+
+static int
+java_demangled_signature_length (char *signature)
+{
+ int array = 0;
+ for (; *signature == '['; signature++)
+ array += 2; /* Two chars for "[]". */
+ switch (signature[0])
+ {
+ case 'L':
+ /* Subtract 2 for 'L' and ';'. */
+ return strlen (signature) - 2 + array;
+ default:
+ return strlen (TYPE_NAME (java_primitive_type (signature[0]))) + array;
+ }
+}
+
+/* Demangle the Java type signature SIGNATURE, leaving the result in RESULT. */
+
+static void
+java_demangled_signature_copy (char *result, char *signature)
+{
+ int array = 0;
+ char *ptr;
+ int i;
+ while (*signature == '[')
+ {
+ array++;
+ signature++;
+ }
+ switch (signature[0])
+ {
+ case 'L':
+ /* Subtract 2 for 'L' and ';', but add 1 for final nul. */
+ signature++;
+ ptr = result;
+ for (; *signature != ';' && *signature != '\0'; signature++)
+ {
+ if (*signature == '/')
+ *ptr++ = '.';
+ else
+ *ptr++ = *signature;
+ }
+ break;
+ default:
+ ptr = TYPE_NAME (java_primitive_type (signature[0]));
+ i = strlen (ptr);
+ strcpy (result, ptr);
+ ptr = result + i;
+ break;
+ }
+ while (--array >= 0)
+ {
+ *ptr++ = '[';
+ *ptr++ = ']';
+ }
+}
+
+/* Return the demangled name of the Java type signature string SIGNATURE,
+ as a freshly allocated copy. */
+
+char *
+java_demangle_type_signature (char *signature)
+{
+ int length = java_demangled_signature_length (signature);
+ char *result = xmalloc (length + 1);
+ java_demangled_signature_copy (result, signature);
+ result[length] = '\0';
+ return result;
}
/* Return the type of TYPE followed by DIMS pairs of [ ].
If DIMS == 0, TYPE is returned. */
struct type *
-java_array_type (type, dims)
- struct type *type;
- int dims;
+java_array_type (struct type *type, int dims)
{
- if (dims == 0)
- return type;
- error ("array types not implemented");
+ struct type *range_type;
+
+ while (dims-- > 0)
+ {
+ range_type = create_range_type (NULL, builtin_type_int, 0, 0);
+ /* FIXME This is bogus! Java arrays are not gdb arrays! */
+ type = create_array_type (NULL, type, range_type);
+ }
+
+ return type;
}
/* Create a Java string in the inferior from a (Utf8) literal. */
-value_ptr
-java_value_string (ptr, len)
- char *ptr;
- int len;
+static struct value *
+java_value_string (char *ptr, int len)
+{
+ error (_("not implemented - java_value_string")); /* FIXME */
+}
+
+/* Print the character C on STREAM as part of the contents of a literal
+ string whose delimiter is QUOTER. Note that that format for printing
+ characters and strings is language specific. */
+
+static void
+java_emit_char (int c, struct ui_file *stream, int quoter)
{
- error ("not implemented - java_value_string"); /* FIXME */
+ switch (c)
+ {
+ case '\\':
+ case '\'':
+ fprintf_filtered (stream, "\\%c", c);
+ break;
+ case '\b':
+ fputs_filtered ("\\b", stream);
+ break;
+ case '\t':
+ fputs_filtered ("\\t", stream);
+ break;
+ case '\n':
+ fputs_filtered ("\\n", stream);
+ break;
+ case '\f':
+ fputs_filtered ("\\f", stream);
+ break;
+ case '\r':
+ fputs_filtered ("\\r", stream);
+ break;
+ default:
+ if (isprint (c))
+ fputc_filtered (c, stream);
+ else
+ fprintf_filtered (stream, "\\u%.4x", (unsigned int) c);
+ break;
+ }
}
-static value_ptr
-evaluate_subexp_java (expect_type, exp, pos, noside)
- struct type *expect_type;
- register struct expression *exp;
- register int *pos;
- enum noside noside;
+static struct value *
+evaluate_subexp_java (struct type *expect_type, struct expression *exp,
+ int *pos, enum noside noside)
{
int pc = *pos;
int i;
+ char *name;
enum exp_opcode op = exp->elts[*pos].opcode;
- value_ptr arg1;
+ struct value *arg1;
+ struct value *arg2;
+ struct type *type;
switch (op)
{
case UNOP_IND:
if (noside == EVAL_SKIP)
goto standard;
(*pos)++;
- arg1 = evaluate_subexp_standard (expect_type, exp, pos, EVAL_NORMAL);
- if (is_object_type (VALUE_TYPE (arg1)))
+ arg1 = evaluate_subexp_java (NULL_TYPE, exp, pos, EVAL_NORMAL);
+ if (is_object_type (value_type (arg1)))
{
- struct type *type = type_from_class (java_class_from_object (arg1));
+ struct type *type;
+
+ type = type_from_class (java_class_from_object (arg1));
arg1 = value_cast (lookup_pointer_type (type), arg1);
}
if (noside == EVAL_SKIP)
goto nosideret;
return value_ind (arg1);
+
+ case BINOP_SUBSCRIPT:
+ (*pos)++;
+ arg1 = evaluate_subexp_with_coercion (exp, pos, noside);
+ arg2 = evaluate_subexp_with_coercion (exp, pos, noside);
+ if (noside == EVAL_SKIP)
+ goto nosideret;
+ /* If the user attempts to subscript something that is not an
+ array or pointer type (like a plain int variable for example),
+ then report this as an error. */
+
+ arg1 = coerce_ref (arg1);
+ type = check_typedef (value_type (arg1));
+ if (TYPE_CODE (type) == TYPE_CODE_PTR)
+ type = check_typedef (TYPE_TARGET_TYPE (type));
+ name = TYPE_NAME (type);
+ if (name == NULL)
+ name = TYPE_TAG_NAME (type);
+ i = name == NULL ? 0 : strlen (name);
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ && i > 2 && name[i - 1] == ']')
+ {
+ CORE_ADDR address;
+ long length, index;
+ struct type *el_type;
+ gdb_byte buf4[4];
+
+ struct value *clas = java_class_from_object (arg1);
+ struct value *temp = clas;
+ /* Get CLASS_ELEMENT_TYPE of the array type. */
+ temp = value_struct_elt (&temp, NULL, "methods",
+ NULL, "structure");
+ deprecated_set_value_type (temp, value_type (clas));
+ el_type = type_from_class (temp);
+ if (TYPE_CODE (el_type) == TYPE_CODE_STRUCT)
+ el_type = lookup_pointer_type (el_type);
+
+ if (noside == EVAL_AVOID_SIDE_EFFECTS)
+ return value_zero (el_type, VALUE_LVAL (arg1));
+ address = value_as_address (arg1);
+ address += JAVA_OBJECT_SIZE;
+ read_memory (address, buf4, 4);
+ length = (long) extract_signed_integer (buf4, 4);
+ index = (long) value_as_long (arg2);
+ if (index >= length || index < 0)
+ error (_("array index (%ld) out of bounds (length: %ld)"),
+ index, length);
+ address = (address + 4) + index * TYPE_LENGTH (el_type);
+ return value_at (el_type, address);
+ }
+ else if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
+ {
+ if (noside == EVAL_AVOID_SIDE_EFFECTS)
+ return value_zero (TYPE_TARGET_TYPE (type), VALUE_LVAL (arg1));
+ else
+ return value_subscript (arg1, arg2);
+ }
+ if (name)
+ error (_("cannot subscript something of type `%s'"), name);
+ else
+ error (_("cannot subscript requested type"));
+
case OP_STRING:
(*pos)++;
i = longest_to_int (exp->elts[pc + 1].longconst);
if (noside == EVAL_SKIP)
goto nosideret;
return java_value_string (&exp->elts[pc + 2].string, i);
+
+ case STRUCTOP_PTR:
+ arg1 = evaluate_subexp_standard (expect_type, exp, pos, noside);
+ /* Convert object field (such as TYPE.class) to reference. */
+ if (TYPE_CODE (value_type (arg1)) == TYPE_CODE_STRUCT)
+ arg1 = value_addr (arg1);
+ return arg1;
default:
break;
}
standard:
return evaluate_subexp_standard (expect_type, exp, pos, noside);
- nosideret:
+nosideret:
return value_from_longest (builtin_type_long, (LONGEST) 1);
}
static struct type *
-java_create_fundamental_type (objfile, typeid)
- struct objfile *objfile;
- int typeid;
+java_create_fundamental_type (struct objfile *objfile, int typeid)
{
switch (typeid)
{
- case FT_VOID: return java_void_type;
- case FT_BOOLEAN: return java_boolean_type;
- case FT_CHAR: return java_char_type;
- case FT_FLOAT: return java_float_type;
- case FT_DBL_PREC_FLOAT: return java_double_type;
- case FT_BYTE: case FT_SIGNED_CHAR: return java_byte_type;
- case FT_SHORT: case FT_SIGNED_SHORT: return java_short_type;
- case FT_INTEGER: case FT_SIGNED_INTEGER: return java_int_type;
- case FT_LONG: case FT_SIGNED_LONG: return java_long_type;
+ case FT_VOID:
+ return java_void_type;
+ case FT_BOOLEAN:
+ return java_boolean_type;
+ case FT_CHAR:
+ return java_char_type;
+ case FT_FLOAT:
+ return java_float_type;
+ case FT_DBL_PREC_FLOAT:
+ return java_double_type;
+ case FT_BYTE:
+ case FT_SIGNED_CHAR:
+ return java_byte_type;
+ case FT_SHORT:
+ case FT_SIGNED_SHORT:
+ return java_short_type;
+ case FT_INTEGER:
+ case FT_SIGNED_INTEGER:
+ return java_int_type;
+ case FT_LONG:
+ case FT_SIGNED_LONG:
+ return java_long_type;
}
return c_create_fundamental_type (objfile, typeid);
}
+static char *java_demangle (const char *mangled, int options)
+{
+ return cplus_demangle (mangled, options | DMGL_JAVA);
+}
+
+/* Find the member function name of the demangled name NAME. NAME
+ must be a method name including arguments, in order to correctly
+ locate the last component.
+
+ This function return a pointer to the first dot before the
+ member function name, or NULL if the name was not of the
+ expected form. */
+
+static const char *
+java_find_last_component (const char *name)
+{
+ const char *p;
+
+ /* Find argument list. */
+ p = strchr (name, '(');
+
+ if (p == NULL)
+ return NULL;
+
+ /* Back up and find first dot prior to argument list. */
+ while (p > name && *p != '.')
+ p--;
+
+ if (p == name)
+ return NULL;
+
+ return p;
+}
+
+/* Return the name of the class containing method PHYSNAME. */
+
+static char *
+java_class_name_from_physname (const char *physname)
+{
+ char *ret = NULL;
+ const char *end;
+ int depth = 0;
+ char *demangled_name = java_demangle (physname, DMGL_PARAMS | DMGL_ANSI);
+
+ if (demangled_name == NULL)
+ return NULL;
+
+ end = java_find_last_component (demangled_name);
+ if (end != NULL)
+ {
+ ret = xmalloc (end - demangled_name + 1);
+ memcpy (ret, demangled_name, end - demangled_name);
+ ret[end - demangled_name] = '\0';
+ }
+
+ xfree (demangled_name);
+ return ret;
+}
+
/* Table mapping opcodes into strings for printing operators
and precedences of the operators. */
const struct op_print java_op_print_tab[] =
- {
- {",", BINOP_COMMA, PREC_COMMA, 0},
- {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
- {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
- {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
- {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
- {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
- {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
- {"==", BINOP_EQUAL, PREC_EQUAL, 0},
- {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
- {"<=", BINOP_LEQ, PREC_ORDER, 0},
- {">=", BINOP_GEQ, PREC_ORDER, 0},
- {">", BINOP_GTR, PREC_ORDER, 0},
- {"<", BINOP_LESS, PREC_ORDER, 0},
- {">>", BINOP_RSH, PREC_SHIFT, 0},
- {"<<", BINOP_LSH, PREC_SHIFT, 0},
+{
+ {",", BINOP_COMMA, PREC_COMMA, 0},
+ {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
+ {"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
+ {"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
+ {"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
+ {"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
+ {"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
+ {"==", BINOP_EQUAL, PREC_EQUAL, 0},
+ {"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
+ {"<=", BINOP_LEQ, PREC_ORDER, 0},
+ {">=", BINOP_GEQ, PREC_ORDER, 0},
+ {">", BINOP_GTR, PREC_ORDER, 0},
+ {"<", BINOP_LESS, PREC_ORDER, 0},
+ {">>", BINOP_RSH, PREC_SHIFT, 0},
+ {"<<", BINOP_LSH, PREC_SHIFT, 0},
#if 0
- {">>>", BINOP_???, PREC_SHIFT, 0},
+ {">>>", BINOP_ ? ? ?, PREC_SHIFT, 0},
#endif
- {"+", BINOP_ADD, PREC_ADD, 0},
- {"-", BINOP_SUB, PREC_ADD, 0},
- {"*", BINOP_MUL, PREC_MUL, 0},
- {"/", BINOP_DIV, PREC_MUL, 0},
- {"%", BINOP_REM, PREC_MUL, 0},
- {"-", UNOP_NEG, PREC_PREFIX, 0},
- {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
- {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
- {"*", UNOP_IND, PREC_PREFIX, 0},
+ {"+", BINOP_ADD, PREC_ADD, 0},
+ {"-", BINOP_SUB, PREC_ADD, 0},
+ {"*", BINOP_MUL, PREC_MUL, 0},
+ {"/", BINOP_DIV, PREC_MUL, 0},
+ {"%", BINOP_REM, PREC_MUL, 0},
+ {"-", UNOP_NEG, PREC_PREFIX, 0},
+ {"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
+ {"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
+ {"*", UNOP_IND, PREC_PREFIX, 0},
#if 0
- {"instanceof", ???, ???, 0},
+ {"instanceof", ? ? ?, ? ? ?, 0},
#endif
- {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
- {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
- {NULL, 0, 0, 0}
+ {"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
+ {"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
+ {NULL, 0, 0, 0}
};
-const struct language_defn java_language_defn = {
- "java", /* Language name */
+const struct exp_descriptor exp_descriptor_java =
+{
+ print_subexp_standard,
+ operator_length_standard,
+ op_name_standard,
+ dump_subexp_body_standard,
+ evaluate_subexp_java
+};
+
+const struct language_defn java_language_defn =
+{
+ "java", /* Language name */
language_java,
- c_builtin_types,
+ NULL,
range_check_off,
type_check_off,
+ case_sensitive_on,
+ array_row_major,
+ &exp_descriptor_java,
java_parse,
java_error,
- evaluate_subexp_java,
+ null_post_parser,
c_printchar, /* Print a character constant */
c_printstr, /* Function to print string constant */
+ java_emit_char, /* Function to print a single character */
java_create_fundamental_type, /* Create fundamental type in this language */
java_print_type, /* Print a type using appropriate syntax */
java_val_print, /* Print a value using appropriate syntax */
java_value_print, /* Print a top-level value */
- {"", "", "", ""}, /* Binary format info */
- {"0%lo", "0", "o", ""}, /* Octal format info */
- {"%ld", "", "d", ""}, /* Decimal format info */
- {"0x%lx", "0x", "x", ""}, /* Hex format info */
+ NULL, /* Language specific skip_trampoline */
+ value_of_this, /* value_of_this */
+ basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
+ basic_lookup_transparent_type,/* lookup_transparent_type */
+ java_demangle, /* Language specific symbol demangler */
+ java_class_name_from_physname,/* Language specific class name */
java_op_print_tab, /* expression operators for printing */
- 1, /* c-style arrays */
+ 0, /* not c-style arrays */
0, /* String lower bound */
- &builtin_type_char, /* Type of string elements */
+ NULL,
+ default_word_break_characters,
+ c_language_arch_info,
+ default_print_array_index,
LANG_MAGIC
};
void
-_initialize_jave_language ()
+_initialize_java_language (void)
{
- java_int_type = init_type (TYPE_CODE_INT, 4, 0, "int", NULL);
- java_short_type = init_type (TYPE_CODE_INT, 2, 0, "short", NULL);
- java_long_type = init_type (TYPE_CODE_INT, 8, 0, "long", NULL);
- java_byte_type = init_type (TYPE_CODE_INT, 1, 0, "byte", NULL);
- java_boolean_type= init_type (TYPE_CODE_BOOL, 1, 0, "boolean", NULL);
- java_char_type = init_type (TYPE_CODE_CHAR, 2, 0, "char", NULL);
- java_float_type = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL);
- java_double_type = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL);
- java_void_type = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL);
+ java_int_type = init_type (TYPE_CODE_INT, 4, 0, "int", NULL);
+ java_short_type = init_type (TYPE_CODE_INT, 2, 0, "short", NULL);
+ java_long_type = init_type (TYPE_CODE_INT, 8, 0, "long", NULL);
+ java_byte_type = init_type (TYPE_CODE_INT, 1, 0, "byte", NULL);
+ java_boolean_type = init_type (TYPE_CODE_BOOL, 1, 0, "boolean", NULL);
+ java_char_type = init_type (TYPE_CODE_CHAR, 2, TYPE_FLAG_UNSIGNED, "char", NULL);
+ java_float_type = init_type (TYPE_CODE_FLT, 4, 0, "float", NULL);
+ java_double_type = init_type (TYPE_CODE_FLT, 8, 0, "double", NULL);
+ java_void_type = init_type (TYPE_CODE_VOID, 1, 0, "void", NULL);
add_language (&java_language_defn);
}
-/* Cleanup code that should be urn on every "run".
- We need some hook to have this actually be called ... FIXME */
+/* Cleanup code that should be run on every "run".
+ We should use make_run_cleanup to have this be called.
+ But will that mess up values in value histry? FIXME */
-void java_rerun_cleanup ()
+extern void java_rerun_cleanup (void);
+void
+java_rerun_cleanup (void)
{
if (class_symtab != NULL)
{
- free_symtab (class_symtab); /* ??? */
+ free_symtab (class_symtab); /* ??? */
class_symtab = NULL;
}
if (dynamics_objfile != NULL)