/* Parser for Java(TM) .class files.
- Copyright (C) 1996, 1998, 1999, 2000, 2001, 2002, 2003
+ Copyright (C) 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of GCC.
#include "debug.h"
#include "assert.h"
#include "tm_p.h"
+#include "cgraph.h"
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
-#ifdef HAVE_NL_LANGINFO
+#ifdef HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
text = (JCF)->read_ptr; \
save = text[LENGTH]; \
text[LENGTH] = 0; \
- (JCF)->cpool.data[INDEX].t = get_identifier (text); \
+ (JCF)->cpool.data[INDEX].t = get_identifier ((const char *) text); \
text[LENGTH] = save; \
JCF_SKIP (JCF, LENGTH); } while (0)
extern struct obstack temporary_obstack;
-/* Set to nonzero value in order to emit class initilization code
- before static field references. */
-extern int always_initialize_class_p;
-
static GTY(()) tree parse_roots[3];
/* The FIELD_DECL for the current field. */
/* Declarations of some functions used here. */
static void handle_innerclass_attribute (int count, JCF *);
static tree give_name_to_class (JCF *jcf, int index);
+static char *compute_class_name (struct ZipDirectory *zdir);
+static int classify_zip_file (struct ZipDirectory *zdir);
static void parse_zip_file_entries (void);
static void process_zip_dir (FILE *);
static void parse_source_file_1 (tree, FILE *);
static void parse_source_file_2 (void);
static void parse_source_file_3 (void);
static void parse_class_file (void);
+static void handle_deprecated (void);
static void set_source_filename (JCF *, int);
static void jcf_parse (struct JCF*);
static void load_inner_classes (tree);
+/* Handle "Deprecated" attribute. */
+static void
+handle_deprecated (void)
+{
+ if (current_field != NULL_TREE)
+ FIELD_DEPRECATED (current_field) = 1;
+ else if (current_method != NULL_TREE)
+ METHOD_DEPRECATED (current_method) = 1;
+ else if (current_class != NULL_TREE)
+ CLASS_DEPRECATED (TYPE_NAME (current_class)) = 1;
+ else
+ {
+ /* Shouldn't happen. */
+ abort ();
+ }
+}
+
/* Handle "SourceFile" attribute. */
static void
#define HANDLE_CLASS_INFO(ACCESS_FLAGS, THIS, SUPER, INTERFACES_COUNT) \
{ tree super_class = SUPER==0 ? NULL_TREE : get_class_constant (jcf, SUPER); \
- current_class = give_name_to_class (jcf, THIS); \
+ output_class = current_class = give_name_to_class (jcf, THIS); \
set_super_info (ACCESS_FLAGS, current_class, super_class, INTERFACES_COUNT);}
#define HANDLE_CLASS_INTERFACE(INDEX) \
DECL_FUNCTION_THROWS (current_method) = nreverse (list); \
}
+#define HANDLE_DEPRECATED_ATTRIBUTE() handle_deprecated ()
+
/* Link seen inner classes to their outer context and register the
inner class to its outer context. They will be later loaded. */
#define HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
case CONSTANT_Long:
{
unsigned HOST_WIDE_INT num = JPOOL_UINT (jcf, index);
- HOST_WIDE_INT lo, hi;
+ unsigned HOST_WIDE_INT lo;
+ HOST_WIDE_INT hi;
lshift_double (num, 0, 32, 64, &lo, &hi, 0);
num = JPOOL_UINT (jcf, index+1);
add_double (lo, hi, num, 0, &lo, &hi);
entry isn't a member (like an inner class) the value is 0. */
int ocii = JCF_readu2 (jcf);
/* Read inner_name_index. If the class we're dealing with is
- an annonymous class, it must be 0. */
+ an anonymous class, it must be 0. */
int ini = JCF_readu2 (jcf);
/* Read the access flag. */
int acc = JCF_readu2 (jcf);
tree this_class;
int j = JPOOL_USHORT1 (jcf, i);
/* verify_constant_pool confirmed that j is a CONSTANT_Utf8. */
- tree class_name = unmangle_classname (JPOOL_UTF_DATA (jcf, j),
+ tree class_name = unmangle_classname ((const char *) JPOOL_UTF_DATA (jcf, j),
JPOOL_UTF_LENGTH (jcf, j));
this_class = lookup_class (class_name);
input_filename = DECL_SOURCE_FILE (TYPE_NAME (this_class));
- lineno = 0;
+ input_line = 0;
if (main_input_filename == NULL && jcf == main_jcf)
main_input_filename = input_filename;
{
int name_index = JPOOL_USHORT1 (jcf, i);
/* verify_constant_pool confirmed that name_index is a CONSTANT_Utf8. */
- const char *name = JPOOL_UTF_DATA (jcf, name_index);
+ const char *name = (const char *) JPOOL_UTF_DATA (jcf, name_index);
int nlength = JPOOL_UTF_LENGTH (jcf, name_index);
if (name[0] == '[') /* Handle array "classes". */
- type = TREE_TYPE (parse_signature_string (name, nlength));
+ type = TREE_TYPE (parse_signature_string ((const unsigned char *) name, nlength));
else
{
tree cname = unmangle_classname (name, nlength);
JCF this_jcf, *jcf;
tree icv, class = NULL_TREE;
tree save_current_class = current_class;
- const char *save_input_filename = input_filename;
+ tree save_output_class = output_class;
+ location_t save_location = input_location;
JCF *save_current_jcf = current_jcf;
if ((icv = IDENTIFIER_CLASS_VALUE (name)) != NULL_TREE)
if (current_jcf->java_source)
{
const char *filename = current_jcf->filename;
- tree file;
+ tree given_file, real_file;
FILE *finput;
int generate;
java_parser_context_save_global ();
java_push_parser_context ();
- BUILD_FILENAME_IDENTIFIER_NODE (file, filename);
- generate = IS_A_COMMAND_LINE_FILENAME_P (file);
+
+ given_file = get_identifier (filename);
+ real_file = get_identifier (lrealpath (filename));
+
+ generate = IS_A_COMMAND_LINE_FILENAME_P (given_file);
if (wfl_operator == NULL_TREE)
wfl_operator = build_expr_wfl (NULL_TREE, NULL, 0, 0);
- EXPR_WFL_FILENAME_NODE (wfl_operator) = file;
+ EXPR_WFL_FILENAME_NODE (wfl_operator) = given_file;
input_filename = ggc_strdup (filename);
- current_class = NULL_TREE;
+ output_class = current_class = NULL_TREE;
current_function_decl = NULL_TREE;
- if (!HAS_BEEN_ALREADY_PARSED_P (file))
+
+ if (! HAS_BEEN_ALREADY_PARSED_P (real_file))
{
- if (!(finput = fopen (input_filename, "r")))
- fatal_io_error ("can't reopen %s", input_filename);
- parse_source_file_1 (file, finput);
+ if (! (finput = fopen (input_filename, "r")))
+ fatal_error ("can't reopen %s: %m", input_filename);
+
+ parse_source_file_1 (real_file, finput);
parse_source_file_2 ();
parse_source_file_3 ();
+
if (fclose (finput))
- fatal_io_error ("can't close %s", input_filename);
+ fatal_error ("can't close %s: %m", input_filename);
}
JCF_FINISH (current_jcf);
java_pop_parser_context (generate);
{
java_parser_context_save_global ();
java_push_parser_context ();
- current_class = class;
+ output_class = current_class = class;
input_filename = current_jcf->filename;
if (JCF_SEEN_IN_ZIP (current_jcf))
read_zip_member(current_jcf,
current_jcf->zipd, current_jcf->zipd->zipf);
jcf_parse (current_jcf);
+ /* Parsing might change the class, in which case we have to
+ put it back where we found it. */
+ if (current_class != class && icv != NULL_TREE)
+ TREE_TYPE (icv) = current_class;
class = current_class;
java_pop_parser_context (0);
java_parser_context_restore_global ();
load_inner_classes (class);
}
+ output_class = save_output_class;
current_class = save_current_class;
- input_filename = save_input_filename;
+ input_location = save_location;
current_jcf = save_current_jcf;
return 1;
}
/* Load CLASS_OR_NAME. CLASS_OR_NAME can be a mere identifier if
called from the parser, otherwise it's a RECORD_TYPE node. If
VERBOSE is 1, print error message on failure to load a class. */
-
-/* Replace calls to load_class by having callers call read_class directly
- - and then perhaps rename read_class to load_class. FIXME */
-
void
load_class (tree class_or_name, int verbose)
{
name = TYPE_NAME (TREE_PURPOSE (class_or_name));
/* Or it's a type in the making */
else
- name = DECL_NAME (TYPE_NAME (class_or_name));
+ {
+ /* If the class is from source code, then it must already be loaded. */
+ if (CLASS_FROM_SOURCE_P (class_or_name))
+ return;
+ name = DECL_NAME (TYPE_NAME (class_or_name));
+ }
saved = name;
while (1)
/* Parse the .class file JCF. */
-void
+static void
jcf_parse (JCF* jcf)
{
int i, code;
}
}
-void
-init_outgoing_cpool (void)
-{
- outgoing_cpool = ggc_alloc_cleared (sizeof (struct CPool));
-}
-
static void
parse_class_file (void)
{
- tree method, field;
- const char *save_input_filename = input_filename;
- int save_lineno = lineno;
+ tree method;
+ location_t save_location = input_location;
java_layout_seen_class_methods ();
input_filename = DECL_SOURCE_FILE (TYPE_NAME (current_class));
- lineno = 0;
- (*debug_hooks->start_source_file) (lineno, input_filename);
- init_outgoing_cpool ();
+ input_line = 0;
+ (*debug_hooks->start_source_file) (input_line, input_filename);
/* Currently we always have to emit calls to _Jv_InitClass when
compiling from class files. */
always_initialize_class_p = 1;
- for (field = TYPE_FIELDS (current_class);
- field != NULL_TREE; field = TREE_CHAIN (field))
- if (FIELD_STATIC (field))
- DECL_EXTERNAL (field) = 0;
+ gen_indirect_dispatch_tables (current_class);
+
+ java_mark_class_local (current_class);
for (method = TYPE_METHODS (current_class);
method != NULL_TREE; method = TREE_CHAIN (method))
DECL_MAX_LOCALS (method) = decl_max_locals;
start_java_method (method);
give_name_to_locals (jcf);
- expand_expr_stmt (build_jni_stub (method));
+ *get_stmts () = build_jni_stub (method);
end_java_method ();
continue;
}
continue;
}
- lineno = 0;
+ input_line = 0;
if (DECL_LINENUMBERS_OFFSET (method))
{
- register int i;
- register unsigned char *ptr;
+ int i;
+ unsigned char *ptr;
JCF_SEEK (jcf, DECL_LINENUMBERS_OFFSET (method));
linenumber_count = i = JCF_readu2 (jcf);
linenumber_table = ptr = jcf->read_ptr;
for (ptr += 2; --i >= 0; ptr += 4)
{
int line = GET_u2 (ptr);
- /* Set initial lineno lineno to smallest linenumber.
+ /* Set initial input_line to smallest linenumber.
* Needs to be set before init_function_start. */
- if (lineno == 0 || line < lineno)
- lineno = line;
+ if (input_line == 0 || line < input_line)
+ input_line = line;
}
}
else
give_name_to_locals (jcf);
- /* Actually generate code. */
+ /* Convert bytecode to trees. */
expand_byte_code (jcf, method);
end_java_method ();
finish_class ();
- (*debug_hooks->end_source_file) (save_lineno);
- input_filename = save_input_filename;
- lineno = save_lineno;
+ (*debug_hooks->end_source_file) (save_location.line);
+ input_location = save_location;
}
/* Parse a source file, as pointed by the current value of INPUT_FILENAME. */
static void
-parse_source_file_1 (tree file, FILE *finput)
+parse_source_file_1 (tree real_file, FILE *finput)
{
int save_error_count = java_error_count;
- /* Mark the file as parsed */
- HAS_BEEN_ALREADY_PARSED_P (file) = 1;
+
+ /* Mark the file as parsed. */
+ HAS_BEEN_ALREADY_PARSED_P (real_file) = 1;
jcf_dependency_add_file (input_filename, 0);
/* There's no point in trying to find the current encoding unless we
are going to do something intelligent with it -- hence the test
for iconv. */
-#if defined (HAVE_LOCALE_H) && defined (HAVE_ICONV) && defined (HAVE_NL_LANGINFO)
+#if defined (HAVE_LOCALE_H) && defined (HAVE_ICONV) && defined (HAVE_LANGINFO_CODESET)
setlocale (LC_CTYPE, "");
if (current_encoding == NULL)
current_encoding = nl_langinfo (CODESET);
return 0;
}
+/* Generate a function that does all static initialization for this
+ translation unit. */
+
+static void
+java_emit_static_constructor (void)
+{
+ tree body = NULL;
+
+ emit_register_classes (&body);
+ write_resource_constructor (&body);
+
+ if (body)
+ cgraph_build_static_cdtor ('I', body, DEFAULT_INIT_PRIORITY);
+}
+
void
java_parse_file (int set_yydebug ATTRIBUTE_UNUSED)
{
int avail = 2000;
finput = fopen (input_filename, "r");
if (finput == NULL)
- fatal_io_error ("can't open %s", input_filename);
+ fatal_error ("can't open %s: %m", input_filename);
list = xmalloc(avail);
next = list;
for (;;)
if (count == 0)
{
if (! feof (finput))
- fatal_io_error ("error closing %s", input_filename);
+ fatal_error ("error closing %s: %m", input_filename);
*next = '\0';
break;
}
finput = NULL;
}
else
- list = xstrdup (input_filename);
+ list = input_filename ? xstrdup (input_filename) : 0;
- do
+ while (list)
{
for (next = list; ; )
{
if (twice)
{
- const char *saved_input_filename = input_filename;
- input_filename = value;
- warning ("source file seen twice on command line and will be compiled only once");
- input_filename = saved_input_filename;
+ location_t warn_loc;
+ warn_loc.file = value;
+ warn_loc.line = 0;
+ warning ("%Hsource file seen twice on command line and "
+ "will be compiled only once", &warn_loc);
}
else
{
- BUILD_FILENAME_IDENTIFIER_NODE (node, value);
+ node = get_identifier (value);
IS_A_COMMAND_LINE_FILENAME_P (node) = 1;
current_file_list = tree_cons (NULL_TREE, node,
current_file_list);
}
list = next;
}
- while (next);
if (filename_count == 0)
warning ("no input file specified");
resource_filename = IDENTIFIER_POINTER (TREE_VALUE (current_file_list));
compile_resource_file (resource_name, resource_filename);
- return;
+ goto finish;
}
current_jcf = main_jcf;
unsigned char magic_string[4];
uint32 magic = 0;
tree name = TREE_VALUE (node);
+ tree real_file;
/* Skip already parsed files */
- if (HAS_BEEN_ALREADY_PARSED_P (name))
+ real_file = get_identifier (lrealpath (IDENTIFIER_POINTER (name)));
+ if (HAS_BEEN_ALREADY_PARSED_P (real_file))
continue;
/* Close previous descriptor, if any */
if (finput && fclose (finput))
- fatal_io_error ("can't close input file %s", main_input_filename);
+ fatal_error ("can't close input file %s: %m", main_input_filename);
finput = fopen (IDENTIFIER_POINTER (name), "rb");
if (finput == NULL)
- fatal_io_error ("can't open %s", IDENTIFIER_POINTER (name));
-
+ fatal_error ("can't open %s: %m", IDENTIFIER_POINTER (name));
+
#ifdef IO_BUFFER_SIZE
setvbuf (finput, xmalloc (IO_BUFFER_SIZE),
_IOFBF, IO_BUFFER_SIZE);
if (open_in_zip (main_jcf, input_filename, NULL, 0) < 0)
fatal_error ("bad zip/jar file %s", IDENTIFIER_POINTER (name));
localToFile = SeenZipFiles;
- /* Register all the class defined there. */
+ /* Register all the classes defined there. */
process_zip_dir (main_jcf->read_state);
parse_zip_file_entries ();
/*
JAVA_FILE_P (node) = 1;
java_push_parser_context ();
java_parser_context_save_global ();
- parse_source_file_1 (name, finput);
+
+ parse_source_file_1 (real_file, finput);
java_parser_context_restore_global ();
java_pop_parser_context (1);
}
input_filename = IDENTIFIER_POINTER (TREE_VALUE (node));
if (CLASS_FILE_P (node))
{
- current_class = TREE_PURPOSE (node);
+ output_class = current_class = TREE_PURPOSE (node);
current_jcf = TYPE_JCF (current_class);
layout_class (current_class);
load_inner_classes (current_class);
input_filename = main_input_filename;
java_expand_classes ();
- if (!java_report_errors () && !flag_syntax_only)
- {
- emit_register_classes ();
- if (flag_indirect_dispatch)
- emit_offset_symbol_table ();
- }
+ if (java_report_errors () || flag_syntax_only)
+ return;
+
+ /* Expand all classes compiled from source. */
+ java_finish_classes ();
+
+ finish:
+ /* Arrange for any necessary initialization to happen. */
+ java_emit_static_constructor ();
+
+ /* Only finalize the compilation unit after we've told cgraph which
+ functions have their addresses stored. */
+ cgraph_finalize_compilation_unit ();
+ cgraph_optimize ();
+}
+
+
+/* Return the name of the class corresponding to the name of the file
+ in this zip entry. The result is newly allocated using ALLOC. */
+static char *
+compute_class_name (struct ZipDirectory *zdir)
+{
+ char *class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
+ char *class_name;
+ int j;
+
+ class_name = ALLOC (zdir->filename_length + 1 - 6);
+ strncpy (class_name, class_name_in_zip_dir, zdir->filename_length - 6);
+ class_name [zdir->filename_length - 6] = '\0';
+ for (j = 0; class_name[j]; ++j)
+ class_name[j] = class_name[j] == '/' ? '.' : class_name[j];
+ return class_name;
+}
+
+/* Return 0 if we should skip this entry, 1 if it is a .class file, 2
+ if it is a property file of some sort. */
+static int
+classify_zip_file (struct ZipDirectory *zdir)
+{
+ char *class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
+
+ if (zdir->filename_length > 6
+ && !strncmp (&class_name_in_zip_dir[zdir->filename_length - 6],
+ ".class", 6))
+ return 1;
+
+ /* For now we drop the manifest, but not other information. */
+ if (zdir->filename_length == 20
+ && !strncmp (class_name_in_zip_dir, "META-INF/MANIFEST.MF", 20))
+ return 0;
+
+ /* Drop directory entries. */
+ if (zdir->filename_length > 0
+ && class_name_in_zip_dir[zdir->filename_length - 1] == '/')
+ return 0;
+
+ return 2;
}
/* Process all class entries found in the zip file. */
i < localToFile->count; i++, zdir = ZIPDIR_NEXT (zdir))
{
tree class;
-
- /* We don't need to consider those files. */
- if (!zdir->size || !zdir->filename_offset)
- continue;
-
- class = lookup_class (get_identifier (ZIPDIR_FILENAME (zdir)));
- current_jcf = TYPE_JCF (class);
- current_class = class;
- if ( !CLASS_LOADED_P (class))
+ switch (classify_zip_file (zdir))
{
- if (! CLASS_PARSED_P (class))
- {
- read_zip_member(current_jcf, zdir, localToFile);
- jcf_parse (current_jcf);
- }
- layout_class (current_class);
- load_inner_classes (current_class);
- }
+ case 0:
+ continue;
- if (TYPE_SIZE (current_class) != error_mark_node)
- {
- input_filename = current_jcf->filename;
- parse_class_file ();
- FREE (current_jcf->buffer); /* No longer necessary */
- /* Note: there is a way to free this buffer right after a
- class seen in a zip file has been parsed. The idea is the
- set its jcf in such a way that buffer will be reallocated
- the time the code for the class will be generated. FIXME. */
+ case 1:
+ {
+ char *class_name = compute_class_name (zdir);
+ class = lookup_class (get_identifier (class_name));
+ FREE (class_name);
+ current_jcf = TYPE_JCF (class);
+ output_class = current_class = class;
+
+ if (! CLASS_LOADED_P (class))
+ {
+ if (! CLASS_PARSED_P (class))
+ {
+ read_zip_member (current_jcf, zdir, localToFile);
+ jcf_parse (current_jcf);
+ }
+ layout_class (current_class);
+ load_inner_classes (current_class);
+ }
+
+ if (TYPE_SIZE (current_class) != error_mark_node)
+ {
+ input_filename = current_jcf->filename;
+ parse_class_file ();
+ FREE (current_jcf->buffer); /* No longer necessary */
+ /* Note: there is a way to free this buffer right after a
+ class seen in a zip file has been parsed. The idea is the
+ set its jcf in such a way that buffer will be reallocated
+ the time the code for the class will be generated. FIXME. */
+ }
+ }
+ break;
+
+ case 2:
+ {
+ char *file_name, *class_name_in_zip_dir, *buffer;
+ JCF *jcf;
+ file_name = ALLOC (zdir->filename_length + 1);
+ class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
+ strncpy (file_name, class_name_in_zip_dir, zdir->filename_length);
+ file_name[zdir->filename_length] = '\0';
+ jcf = ALLOC (sizeof (JCF));
+ JCF_ZERO (jcf);
+ jcf->read_state = finput;
+ jcf->filbuf = jcf_filbuf_from_stdio;
+ jcf->java_source = 0;
+ jcf->classname = NULL;
+ jcf->filename = file_name;
+ jcf->zipd = zdir;
+
+ if (read_zip_member (jcf, zdir, localToFile) < 0)
+ fatal_error ("error while reading %s from zip file", file_name);
+
+ buffer = ALLOC (zdir->filename_length + 1 +
+ (jcf->buffer_end - jcf->buffer));
+ strcpy (buffer, file_name);
+ /* This is not a typo: we overwrite the trailing \0 of the
+ file name; this is just how the data is laid out. */
+ memcpy (buffer + zdir->filename_length,
+ jcf->buffer, jcf->buffer_end - jcf->buffer);
+
+ compile_resource_data (file_name, buffer,
+ jcf->buffer_end - jcf->buffer);
+ JCF_FINISH (jcf);
+ FREE (jcf);
+ FREE (buffer);
+ }
+ break;
+
+ default:
+ abort ();
}
}
}
char *class_name, *file_name, *class_name_in_zip_dir;
tree class;
JCF *jcf;
- int j;
class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
- /* We choose to not to process entries with a zero size or entries
- not bearing the .class extension. */
- if (!zdir->size || !zdir->filename_offset ||
- strncmp (&class_name_in_zip_dir[zdir->filename_length-6],
- ".class", 6))
- {
- /* So it will be skipped in parse_zip_file_entries */
- zdir->size = 0;
- continue;
- }
+ /* Here we skip non-class files; we handle them later. */
+ if (classify_zip_file (zdir) != 1)
+ continue;
- class_name = ALLOC (zdir->filename_length+1-6);
+ class_name = compute_class_name (zdir);
file_name = ALLOC (zdir->filename_length+1);
jcf = ggc_alloc (sizeof (JCF));
JCF_ZERO (jcf);
- strncpy (class_name, class_name_in_zip_dir, zdir->filename_length-6);
- class_name [zdir->filename_length-6] = '\0';
strncpy (file_name, class_name_in_zip_dir, zdir->filename_length);
file_name [zdir->filename_length] = '\0';
- for (j=0; class_name[j]; j++)
- class_name [j] = (class_name [j] == '/' ? '.' : class_name [j]);
-
- /* Yes, we write back the true class name into the zip directory. */
- strcpy (class_name_in_zip_dir, class_name);
- zdir->filename_length = j;
class = lookup_class (get_identifier (class_name));
jcf->read_state = finput;
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