/* Functions related to mangling class names for the GNU compiler
for the Java(TM) language.
- Copyright (C) 1998, 1999, 2001, 2002, 2003
+ Copyright (C) 1998, 1999, 2001, 2002, 2003, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GCC.
GCC 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, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
#include "java-tree.h"
#include "obstack.h"
#include "toplev.h"
-#include "obstack.h"
#include "ggc.h"
+#include "langhooks-def.h"
+static void mangle_class_field (tree);
+static void mangle_vtable (tree);
static void mangle_field_decl (tree);
static void mangle_method_decl (tree);
+static void mangle_local_cni_method_decl (tree);
static void mangle_type (tree);
static void mangle_pointer_type (tree);
static int entry_match_pointer_p (tree, int);
static void emit_compression_string (int);
-static void init_mangling (struct obstack *);
+static void init_mangling (void);
static tree finish_mangling (void);
static void compression_table_add (tree);
static void mangle_member_name (tree);
-/* We use an incoming obstack, always to be provided to the interface
- functions. */
+static struct obstack mangle_obstack_1;
struct obstack *mangle_obstack;
+
#define MANGLE_RAW_STRING(S) \
obstack_grow (mangle_obstack, (S), sizeof (S)-1)
/* This is the mangling interface: a decl, a class field (.class) and
the vtable. */
-tree
-java_mangle_decl (struct obstack *obstack, tree decl)
+void
+java_mangle_decl (tree decl)
{
- init_mangling (obstack);
- switch (TREE_CODE (decl))
+ /* A copy of the check from the beginning of lhd_set_decl_assembler_name.
+ Only FUNCTION_DECLs and VAR_DECLs for variables with static storage
+ duration need a real DECL_ASSEMBLER_NAME. */
+ gcc_assert (TREE_CODE (decl) == FUNCTION_DECL
+ || (TREE_CODE (decl) == VAR_DECL
+ && (TREE_STATIC (decl)
+ || DECL_EXTERNAL (decl)
+ || TREE_PUBLIC (decl))));
+
+ /* Mangling only applies to class members. */
+ if (DECL_CONTEXT (decl) && TYPE_P (DECL_CONTEXT (decl)))
{
- case VAR_DECL:
- mangle_field_decl (decl);
- break;
- case FUNCTION_DECL:
- mangle_method_decl (decl);
- break;
- default:
- internal_error ("can't mangle %s", tree_code_name [TREE_CODE (decl)]);
+ init_mangling ();
+ switch (TREE_CODE (decl))
+ {
+ case VAR_DECL:
+ if (DECL_LANG_SPECIFIC (decl))
+ {
+ if (DECL_CLASS_FIELD_P (decl))
+ {
+ mangle_class_field (decl);
+ break;
+ }
+ else if (DECL_VTABLE_P (decl))
+ {
+ mangle_vtable (DECL_CONTEXT (decl));
+ break;
+ }
+ }
+ mangle_field_decl (decl);
+ break;
+
+ case FUNCTION_DECL:
+ if (DECL_LANG_SPECIFIC (decl) && DECL_LOCAL_CNI_METHOD_P (decl))
+ mangle_local_cni_method_decl (decl);
+ else
+ mangle_method_decl (decl);
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+ SET_DECL_ASSEMBLER_NAME (decl, finish_mangling ());
}
- return finish_mangling ();
+ else
+ lhd_set_decl_assembler_name (decl);
}
-tree
-java_mangle_class_field (struct obstack *obstack, tree type)
+/* Beginning of the helper functions */
+
+static void
+mangle_class_field (tree decl)
{
- init_mangling (obstack);
+ tree type = DECL_CONTEXT (decl);
mangle_record_type (type, /* for_pointer = */ 0);
- MANGLE_RAW_STRING ("6class$");
+ if (TREE_CODE (TREE_TYPE (decl)) == RECORD_TYPE)
+ MANGLE_RAW_STRING ("6class$");
+ else
+ MANGLE_RAW_STRING ("7class$$");
obstack_1grow (mangle_obstack, 'E');
- return finish_mangling ();
}
-tree
-java_mangle_vtable (struct obstack *obstack, tree type)
+static void
+mangle_vtable (tree type)
{
- init_mangling (obstack);
MANGLE_RAW_STRING ("TV");
mangle_record_type (type, /* for_pointer = */ 0);
obstack_1grow (mangle_obstack, 'E');
- return finish_mangling ();
}
-/* Beginning of the helper functions */
-
/* This mangles a field decl */
static void
if (TREE_CODE (TREE_TYPE (mdecl)) == METHOD_TYPE)
arglist = TREE_CHAIN (arglist);
+ /* Output literal 'J' and mangle the return type IF not a
+ constructor. */
+ if (!ID_INIT_P (method_name))
+ {
+ obstack_1grow (mangle_obstack, 'J');
+ mangle_type(TREE_TYPE(TREE_TYPE(mdecl)));
+ }
+
/* No arguments is easy. We shortcut it. */
if (arglist == end_params_node)
obstack_1grow (mangle_obstack, 'v');
}
}
+/* This mangles a CNI method for a local class. If the target supports
+ hidden aliases, then G++ will have generated one for us. It is the
+ responsibility of java_mark_class_local to check target support, since
+ we need to set DECL_VISIBILITY (or not) much earlier. */
+
+static void
+mangle_local_cni_method_decl (tree decl)
+{
+ MANGLE_RAW_STRING ("GA");
+ mangle_method_decl (decl);
+}
+
/* This mangles a member name, like a function name or a field
name. Handle cases were `name' is a C++ keyword. Return a nonzero
value if unicode encoding was required. */
{
append_gpp_mangled_name (IDENTIFIER_POINTER (name),
IDENTIFIER_LENGTH (name));
-
- /* If NAME happens to be a C++ keyword, add `$'. */
- if (cxx_keyword_p (IDENTIFIER_POINTER (name), IDENTIFIER_LENGTH (name)))
- obstack_1grow (mangle_obstack, '$');
}
/* Append the mangled name of TYPE onto OBSTACK. */
{
char code;
case BOOLEAN_TYPE: code = 'b'; goto primitive;
- case CHAR_TYPE: code = 'w'; goto primitive;
case VOID_TYPE: code = 'v'; goto primitive;
case INTEGER_TYPE:
+ if (type == char_type_node || type == promoted_char_type_node)
+ {
+ code = 'w';
+ goto primitive;
+ }
/* Get the original type instead of the arguments promoted type.
Avoid symbol name clashes. Should call a function to do that.
FIXME. */
break;
bad_type:
default:
- abort ();
+ gcc_unreachable ();
}
}
static int
find_compression_record_match (tree type, tree *next_current)
{
- int i, match;
+ int i, match = -1;
tree current, saved_current = NULL_TREE;
- /* Search from the beginning for something that matches TYPE, even
- partially. */
- for (current = TYPE_PACKAGE_LIST (type), i = 0, match = -1; current;
- current = TREE_CHAIN (current))
+ current = TYPE_PACKAGE_LIST (type);
+
+ for (i = 0; i < compression_next; i++)
{
- int j;
- for (j = i; j < compression_next; j++)
- if (TREE_VEC_ELT (compression_table, j) == TREE_PURPOSE (current))
- {
- match = i = j;
- saved_current = current;
- i++;
- break;
- }
- else if (atms && TREE_VEC_ELT (compression_table, j) == atms)
- {
- /* Skip over a "6JArray". */
- }
- else
- {
- /* We don't want to match an element that appears in the middle
- of a package name, so skip forward to the next complete type name.
- IDENTIFIER_NODEs (except for a "6JArray") are partial package
- names while RECORD_TYPEs represent complete type names. */
- while (j < compression_next
- && TREE_CODE (TREE_VEC_ELT (compression_table, j)) ==
- IDENTIFIER_NODE)
- j++;
- }
+ tree compression_entry = TREE_VEC_ELT (compression_table, i);
+ if (current && compression_entry == TREE_PURPOSE (current))
+ {
+ match = i;
+ saved_current = current;
+ current = TREE_CHAIN (current);
+ }
+ else
+ /* We don't want to match an element that appears in the middle
+ of a package name, so skip forward to the next complete type name.
+ IDENTIFIER_NODEs (except for a "6JArray") are partial package
+ names while RECORD_TYPEs represent complete type names. */
+ while (i < compression_next
+ && TREE_CODE (compression_entry) == IDENTIFIER_NODE
+ && compression_entry != atms)
+ compression_entry = TREE_VEC_ELT (compression_table, ++i);
}
if (!next_current)
#define ADD_N() \
do { obstack_1grow (mangle_obstack, 'N'); nadded_p = 1; } while (0)
- if (TREE_CODE (type) != RECORD_TYPE)
- abort ();
+ gcc_assert (TREE_CODE (type) == RECORD_TYPE);
if (!TYPE_PACKAGE_LIST (type))
set_type_package_list (type);
/* This didn't work. We start by mangling the pointed-to type */
pointer_type = type;
type = TREE_TYPE (type);
- if (TREE_CODE (type) != RECORD_TYPE)
- abort ();
+ gcc_assert (TREE_CODE (type) == RECORD_TYPE);
obstack_1grow (mangle_obstack, 'P');
if (mangle_record_type (type, /* for_pointer = */ 1))
int match;
type = TREE_TYPE (p_type);
- if (!type)
- abort ();
+ gcc_assert (type);
elt_type = TYPE_ARRAY_ELEMENT (type);
}
/* Write a substitution string for entry I. Substitution string starts a
- -1 (encoded S_.) The base is 36, and the code shamlessly taken from
+ -1 (encoded S_.) The base is 36, and the code shamelessly taken from
cp/mangle.c. */
static void
{
int i;
const char *type_string = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
- char *ptr;
+ const char *ptr;
int qualifications;
tree list = NULL_TREE, elt;
- for (ptr = (char *)type_string, qualifications = 0; *ptr; ptr++)
+ for (ptr = type_string, qualifications = 0; *ptr; ptr++)
if (*ptr == '.')
qualifications += 1;
- for (ptr = (char *)type_string, i = 0; i < qualifications; ptr++)
+ for (ptr = type_string, i = 0; i < qualifications; ptr++)
{
if (ptr [0] == '.')
{
- char c;
- tree identifier;
-
- /* Can't use an obstack, we're already using it to
- accumulate the mangling. */
- c = ptr [0];
- ptr [0] = '\0';
- identifier = get_identifier (type_string);
- ptr [0] = c;
+ tree const identifier
+ = get_identifier_with_length (type_string, ptr - type_string);
+
elt = build_tree_list (identifier, identifier);
TREE_CHAIN (elt) = list;
list = elt;
{
if (compression_next == TREE_VEC_LENGTH (compression_table))
{
- tree new = make_tree_vec (2*compression_next);
+ tree new_table = make_tree_vec (2*compression_next);
int i;
for (i = 0; i < compression_next; i++)
- TREE_VEC_ELT (new, i) = TREE_VEC_ELT (compression_table, i);
+ TREE_VEC_ELT (new_table, i) = TREE_VEC_ELT (compression_table, i);
- compression_table = new;
+ compression_table = new_table;
}
TREE_VEC_ELT (compression_table, compression_next++) = type;
}
+/* Mangle an embedded resource file name. "_ZGr" is the prefix. A
+ '_' is prepended to the name so that names starting with a digit
+ can be demangled. The length and then the resulting name itself
+ are appended while escaping '$', '.', and '/' to: "$$", "$_", and
+ "$S". */
+
+tree
+java_mangle_resource_name (const char *name)
+{
+ int len = strlen (name);
+ char *buf = (char *) alloca (2 * len + 1);
+ char *pos;
+ const unsigned char *w1 = (const unsigned char *) name;
+ const unsigned char *w2;
+ const unsigned char *limit = w1 + len;
+
+ pos = buf;
+
+ init_mangling ();
+ MANGLE_RAW_STRING ("Gr");
+
+ *pos++ = '_';
+ while (w1 < limit)
+ {
+ int ch;
+ w2 = w1;
+ ch = UTF8_GET (w1, limit);
+ gcc_assert (ch > 0);
+ switch (ch)
+ {
+ case '$':
+ *pos++ = '$';
+ *pos++ = '$';
+ break;
+ case '.':
+ *pos++ = '$';
+ *pos++ = '_';
+ break;
+ case '/':
+ *pos++ = '$';
+ *pos++ = 'S';
+ break;
+ default:
+ memcpy (pos, w2, w1 - w2);
+ pos += w1 - w2;
+ break;
+ }
+ }
+ append_gpp_mangled_name (buf, pos - buf);
+
+ return finish_mangling ();
+}
+
/* Mangling initialization routine. */
static void
-init_mangling (struct obstack *obstack)
+init_mangling (void)
{
- mangle_obstack = obstack;
- if (!compression_table)
- compression_table = make_tree_vec (10);
- else
- /* Mangling already in progress. */
- abort ();
+ if (!mangle_obstack)
+ {
+ mangle_obstack = &mangle_obstack_1;
+ gcc_obstack_init (mangle_obstack);
+ }
+
+ gcc_assert (compression_table == NULL);
+ compression_table = make_tree_vec (10);
/* Mangled name are to be suffixed */
- obstack_grow (mangle_obstack, "_Z", 2);
+ MANGLE_RAW_STRING ("_Z");
}
/* Mangling finalization routine. The mangled name is returned as a
{
tree result;
- if (!compression_table)
- /* Mangling already finished. */
- abort ();
+ gcc_assert (compression_table);
compression_table = NULL_TREE;
compression_next = 0;
obstack_1grow (mangle_obstack, '\0');
result = get_identifier (obstack_base (mangle_obstack));
obstack_free (mangle_obstack, obstack_base (mangle_obstack));
-#if 0
- printf ("// %s\n", IDENTIFIER_POINTER (result));
-#endif
+
return result;
}
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