changelog

gcc-2.95.3 Linux下最常用的C编译器

	* Makefile.in (parse.o): Depend on $(CONFIG_H) and
	$(srcdir)/../system.h.
	(class.o): Depend on $(PARSE_H) and $(srcdir)/../output.h.
	(jcf-parse.o): Depend on $(srcdir)/../toplev.h.
	(jcf-write.o): Likewise.
	(jv-scan.o): Depend on $(CONFIG_H) and $(srcdir)/../system.h.
	(mangle.o): Depend on $(srcdir)/../toplev.h.
	(parse-scan.o): Depend on $(CONFIG_H) and $(srcdir)/../system.h.
	(zextract.o): Depend on $(CONFIG_H) and $(srcdir)/../system.h.

	* class.c: Include output.h and parse.h.
	(mangled_classname): Add the `const' keyword to a char*.
	(find_named_method): Hide unused function definition.
	(build_utf8_ref): Change type of variable `c' to unsigned char.
	Use ISALPHA/ISDIGIT instead of isalpha/isdigit.
	(build_class_ref): Add the `const' keyword to a char*.
	(layout_class_method): Remove unused variable `buf'.

	* decl.c (find_local_variable): Remove unused variable `rtl'.
	(pushdecl): Likewise for variables `different_binding_level' and
	`oldglobal'.
	(pushlevel): Mark parameter `unused' with ATTRIBUTE_UNUSED.
	(maybe_build_cleanup): Likewise for parameter `decl'.

	* except.c (expand_start_java_handler): Mark parameter `range'
	with ATTRIBUTE_UNUSED.

	* expr.c: Include except.h.
	(pop_type): Remove unused variable `i'.
	(pop_value): Likewise for variables `n_words' and `i'.
	(expand_java_arrayload): Likewise for variable `convert'.
	(java_lang_expand_expr): Likewise for variables `op0', `type',
	`mode', `unsignedp', `node' and `elements'.
	(expand_byte_code): Likewise for variables `prev_eh_ranges' and
	`eh_ranges'.
	(process_jvm_instruction): Add a `const' qualifier to a char*.

	* gjavah.c (output_directory): Add the `const' keyword to a char*.
	(temp_directory): Likewise.
	(print_c_decl): Likewise.
	(print_method_info): Likewise.
	(decode_signature_piece): Likewise.
	(print_mangled_classname): Likewise.

	* java-except.h: Provide prototypes for maybe_start_try,
	maybe_end_try and add_handler.

	* java-tree.h (mangled_classname): Add the `const' keyword to a char*.
	(parse_error_context): Likewise.  Also add ATTRIBUTE_PRINTF_2.
	(pushdecl_top_level, alloc_class_constant, unicode_mangling_length,
	init_expr_processing, push_super_field, init_class_processing,
	can_widen_reference_to, class_depth, verify_jvm_instructions,
	maybe_pushlevels, maybe_poplevels, process_jvm_instruction,
	set_local_type, merge_type_state, push_type, load_type_state,
	add_interface, find_in_current_zip, append_gpp_mangled_classtype,
	emit_unicode_mangled_name): Add prototypes.

	* jcf-dump.c (print_constant): Add the `const' keyword to a char*.
	(print_signature_type): Use ISDIGIT, not isdigit.
	(print_signature): Remove unused variable `j'.

	* jcf-io.c (jcf_filbuf_from_stdio): Cast the result of `fread' to
	int when comparing against one.

	* jcf-parse.c: Include toplev.h.

	* jcf-write.c: Likewise.  Don't include <string.h> or <sys/stat.h>.
	(localvar_free): Remove unused variable `i'.
	(generate_bytecode_conditional): Likewise for variable `kind'.

	* jv-scan.c: Include config.h and system.h.  Remove redundant
	OS header and gansidecl.h includes.
	(warning): Add the `const' keyword to a char*.  Also add
	ATTRIBUTE_PRINTF_1 to the prototype.  Check ANSI_PROTOTYPES, not
	__STDC__, when determining whether to use ANSI-isms.
	(fatal): Likewise.  Also add ATTRIBUTE_UNUSED.
	(xmalloc): Don't redundantly prototype here.
	(main): Remove unused parameter `envp'.  Also fix the arguments
	passed to function `fatal' to match the format specifier.

	* lang.c (java_tree_code_name): Add the `const' keyword to a char*.

	* mangle.c: Include toplev.h.
	(emit_unicode_mangled_name): Declare parameter `len'.

	* parse.y (parse_warning_context): Add the `const' keyword to a
	char*.  Also add ATTRIBUTE_PRINTF_2 to the prototype.  Check
	`ANSI_PROTOTYPES' not `__STDC__' for whether to use ANSI-isms.
	(issue_warning_error_from_context): Add the `const' keyword to
	a char*.
	(parse_error_context): Likewise.  Also check `ANSI_PROTOTYPES'
	not `__STDC__' for whether to use ANSI-isms.

	* typeck.c (incomplete_type_error): Mark parameters `value' and
	`type' with ATTRIBUTE_UNUSED.
	(parse_signature_type): Use ISDIGIT, not isdigit.

	* verify.c (check_pending_block): Add the `const' keyword to a char*.
	(verify_jvm_instructions): Likewise.  Remove unused variables
	`field_name' and `default_val'.
	
	* zextract.c: Include config.h and system.h.  Remove redundant
	OS header includes.
	
	* zipfile.h: Prototype `read_zip_archive'.

Thu Jan 21 16:00:06 1999  Andrew Haley  <[e-mail]>

	* typeck.c (convert): Allow conversions to void type: some
 	optimizations in gcc do this.

Thu Jan 21 15:21:49 1999  Andrew Haley  <[e-mail]>

	* typeck.c (convert_ieee_real_to_integer): New function.
	(convert): When not using fast-math and using hardware fp, convert
 	an IEEE NaN to zero.
 
1999-01-18  Andrew Haley  <[e-mail]>

	* parse.y (patch_binop): Do a type conversion from signed to
	unsigned and then back to signed when a ">>>" is found.

Sun Jan 17 22:34:22 1999  Alexandre Petit-Bianco  <[e-mail]>

	* java-tree.h: (check_for_initialization): Added prototype.
	* lex.c (java_parse_doc_section): `\n' breaks the `*/' string.
	* parse.y (do_resolve_class): Removed unused locals.
	(read_import_dir): Likewise.
	(resolve_qualified_expression_name): Array creation
 	expressions are valid primary expressions.
	(qualify_ambiguous_name): Likewise.
	(patch_synchronized_statement): Removed unused local.

Sun Jan 17 21:55:42 1999  Jeffrey A Law  ([e-mail])

	* Makefile.in (zextract.o): Add dependencies.

        * Makefile.in: Do not put ^Ls at the start of a line.

Fri Jan 15 20:16:20 1999  Per Bothner  <[e-mail]>

	* expr.c (process_jvm_instruction):  Coerce to correct Throwable
	sub-type the result of the call that gets the exception value.

	* parse.y (java_complete_expand_methods):  If flags_syntax_only,
	don't call finish_class.

	* parse.y (java_check_regular_methods):  If METHOD_PRIVATE,
	clear found before continuing.

	* verify.c (verify_jvm_instructions):  On an array load, allow
	and handle top of stack to be TYPE_NULL.

	* gjavah.c (generate_access):  Translate Java package private or
	protected access to C++ public, but with a comment.

1999-01-13  Andrew Haley  <[e-mail]>

	* expr.c (generate_name): Name prefix changed to avoid clashes
	with assembler temp labels.

	* parse.y (patch_synchronized_statement): Set TREE_SIDE_EFFECTS on
	MODIFY_EXPR.  Without this, code for the assignement may not be
	generated at all and the synchronized statement will read an
	uninitialized variable.
  	
Wed Jan 13 01:24:54 1999  Alexandre Petit-Bianco  <[e-mail]>

	* class.c (maybe_layout_super_class): Fixed returned value.
	* lex.c: Added 1999 to the copyright.
	(java_init_lex): Initialize java_lang_imported.
	* lex.h: Added 1999 to the copyright.
	* parse.h: Added 1999 to the copyright.
	(REGISTER_IMPORT): Fixed typo in trailing macro.
	(CURRENT_OSB): New macro.
	(struct parser_ctxt): New fields osb_depth, osb_limit.
	* parse.y (java_lang_id): New global variable.
	(type_import_on_demand_declaration): Don't import java.lang.* twice.
	(array_creation_expression:): Use CURRENT_OSB.
	(dims:): Uses a stack to keep track of array dimensions.
	(cast_expression:): Use CURRENT_OSB.
	(find_expr_with_wfl): Return NULL if node found doesn't meet the
 	conditions.
	(register_fields): Fixed typos in comment.
	(check_method_redefinition): Fixed comment indentation.
	(java_check_regular_methods): Set saved found wfl to NULL after
 	having reinstalled it in the previously found DECL_NAME.

Sun Jan 10 13:36:14 1999  Richard Henderson  <[e-mail]>

	* gjavah.c (java_float_finite): Use a union to do type punning.
	(java_double_finite): Likewise.

Sat Jan  9 11:25:00 1999  Per Bothner  <[e-mail]>

	* parse.y (build_new_array_init):  Don't set EXPR_WFL_LINECOL
	on CONSTRUCTOR (since that trashes TREE_CST_RTL).
	(patch_new_array_init):  Clear TREE_CONSTANT also if INDIRECT_REF.
	(register_fields):  Set TREE_STATIC on NEW_ARRAY_INIT, not on
	CONSTRUCTOR (which causes expand_expr to call output_constant_def).
	* expr.c (java_lang_expand_expr):  Check TREE_STATIC of NEW_ARRAY_INIT.

Fri Jan  8 15:48:03 1999  Per Bothner  <[e-mail]>

	* check-init.c (check_init):  If compiling to native, we don't
	see THROW_EXPR.  Instead, look for a call to throw_node (_Jv_Throw).

1999-01-08  Tom Tromey  <[e-mail]>

	* parse-scan.y (variable_declarator_id): Set or increment
	bracket_count.
	(bracket_count): New global.
	(formal_parameter): Handle case where bracket pairs trail variable
	declarator id.

1999-01-07  Andrew Haley  <[e-mail]>

	* jcf-parse.c (yyparse): variable len changed from a char to an
	int to prevent overflow.

Wed Jan  6 17:19:46 1999  Per Bothner  <[e-mail]>

	* java-tree.h:  Declare read_class.
	* jcf-parse.c (read_class):  New function.
	(load_class):  Now just call read_class.

	* java-tree.h (java_parse_abort_on_error):  Only return if new errors.
	* jcf-parse.c (parse_source_file):  Declare save_error_count,
	which is needed by java_parse_abort_on_error macro,
	* parse.y (java_layout_classes, java_expand_classes):  Likewise.

	* parse.y (register_fields):  Set TREE_STATIC flag of NEW_ARRAY_INIT
	constructor, if initializing a static field.
	(patch_new_array_init):  Set TREE_CONSTANT if it is.
	* expr.c (java_lang_expand_expr):  For a static array constructor
	of primitive elements, allocate the array itself statically.
	Disabled until we can set the vtable field statically.
	
	* check-init.c:  New file.  Checks for definite assignment.
	* Makefile.in (JAVA_OBJS):  Add check-init.o.
	* parse.y (java_complete_expand_method): Call check_for_initialization.
	* parse.h (BLOCK_EXPR_DECLS, BLOCK_EXPR_BODY):  Moved to java-tree.h.

Wed Jan  6 14:53:10 1999  Graham <[e-mail]>

	* parse.y : include system.h instead of including
	standard headers directly with the exception of <dirent.h>.

Wed Jan  6 16:20:06 1999  Per Bothner  <[e-mail]>

	* lex.h:  Moved static function declarations to lex.c,
	to shut up some -Wall warnings.
	* lex.c:  Static function declarations moved here.
	* jcf-dump.c:  Small fixes to shut up -Wall warnings.

Tue Jan  5 22:15:40 1999  Kaveh R. Ghazi  <[e-mail]>

        * Make-lang.in ($(GCJ).o): Depend on prefix.h.

Tue Dec 22 11:25:19 1998  Per Bothner  <[e-mail]>

	* expr.c (process_jvm_instruction):  Do load_type_state after JSR.
	* verify.c (verify_jvm_instructions):  Fix off-by-one error.

	* jcf-write.c (CHECK_PUT):  Add (void) cast to avoid -Wall warnings.
	(localvar_alloc):  Change return type to void,
	(emit_unop):  Remove unused variable size.
	
	* jcf-write.c (struct jcf_block):  Add new union.
	(PENDING_CLEANUP_PC, PENDING_EXIT_PC, UNDEFINED_PC):  New macros.
	(call_cleanups):  New functions.
	(struct jcf_partial):  New fields num_finalizers and return_value_decl.
	(generate_bytecode_insns):  Support CLEANUP_POINT_EXPR and
	WITH_CLEANUP_EXPR.  Handle cleanups in RETURN_EXPR and EXIT_BLOCK_EXPR.
	* lang.c (lang_init):  Call using_eh_for_cleanups.
	* parse.y (java_complete_lhs):  For SYNCHRONIZED_EXPR, defer
	completing operands to patch_synchronized_statement.
	Support CLEANUP_POINT_EXPR, WITH_CLEANUP_EXPR.
	(patch_synchronized_statement): Re-write suing CLEANUP_POINT_EXPR and
	WITH_CLEANUP_EXPR instead of TRY_EXPR.	

Sun Dec 20 16:15:44 1998  John F. Carr  <[e-mail]>

	* Make-lang.in: Comment out control-Ls; they upset some makes.

1998-12-18  Tom Tromey  <[e-mail]>

	* parse.y (check_class_interface_creation): Use DIR_SEPARATOR
	consistently.

1998-12-17  Tom Tromey  <[e-mail]>

	* parse.y (DIR_SEPARATOR): New define.
	(check_class_interface_creation): Use it.

	* parse-scan.y (report_main_declaration): Recognize
	`java.lang.String' in argument to main.

Wed Dec 16 16:18:59 1998  Per Bothner  <[e-mail]>

	* parse.y (create_interface):  Remove bogus test.

Wed Dec 16 14:42:19 1998  Per Bothner  <[e-mail]>

	* jcf-parse.c (get_constant):  Set TREE_TYPE for string constants.
	(HANDLE_CONSTANTVALUE):  If flag_emit_class_files, call get_constant.

1998-12-16  Tom Tromey  <[e-mail]>

	* parse-scan.y (qualified_name): Use correct sprintf format.

1998-12-15  Tom Tromey  <[e-mail]>

	* gjavah.c (print_field_info): Changed how most negative number is
	printed.

Mon Dec 14 18:49:29 1998  Per Bothner  <[e-mail]>

	* parse.y (fold_constant_for_init):  New function.
	(resolve_expression_name):  Don't replace static final
 	constant-initialized fields by its value.
	(java_complete_lhs):  New.  Same as java_complete_tree, except does
	not replace static final constant-initialized fields by their values.
	(register_fields):  If there is an initializer, set DECL_INITIAL and
	MODIFY_EXPR_FROM_INITIALIZATION_P.
	(java_complete_tree):  For MODIFY_EXPR, use java_complete_lhs for lhs.
	Only call patch_initialized_static_field if
	MODIFY_EXPR_FROM_INITIALIZATION_P.
	(patch_initialized_static_field):  If not valid constant, clear
	DECL_INITIAL.

	* parse.y (lookup_field_wrapper):  Fix thinko.

	* parse.y (java_complete_tree):  In EXPR_WITH_FILE_LOCATION,
	set and restore global lineno.

1998-12-14  Tom Tromey  <[e-mail]>

	* gjavah.c (print_field_info): If v