/* Language-specific hook definitions for C front end.
Copyright (C) 1991, 1995, 1997, 1998,
- 1999, 2000 Free Software Foundation, Inc.
+ 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GNU CC.
#include "expr.h"
#include "c-tree.h"
#include "c-lex.h"
-
-static int c_tree_printer PARAMS ((output_buffer *));
-
-#if USE_CPPLIB
#include "cpplib.h"
-extern cpp_reader parse_in;
-#endif
-/* Each of the functions defined here
- is an alternative to a function in objc-actions.c. */
-
-int
-lang_decode_option (argc, argv)
- int argc;
- char **argv;
+static int c_tree_printer PARAMS ((output_buffer *));
+static int c_missing_noreturn_ok_p PARAMS ((tree));
+static void c_init PARAMS ((void));
+static void c_init_options PARAMS ((void));
+static void c_post_options PARAMS ((void));
+
+/* Each front end provides its own. */
+struct lang_hooks lang_hooks = {c_init,
+ NULL, /* c_finish */
+ c_init_options,
+ c_decode_option,
+ c_post_options};
+
+/* Post-switch processing. */
+static void
+c_post_options ()
{
- return c_decode_option (argc, argv);
+ cpp_post_options (parse_in);
}
-void
-lang_init_options ()
+static void
+c_init_options ()
{
-#if USE_CPPLIB
- cpp_init ();
- cpp_reader_init (&parse_in);
-#endif
+ /* Make identifier nodes long enough for the language-specific slots. */
+ set_identifier_size (sizeof (struct lang_identifier));
+
+ parse_in = cpp_create_reader (ident_hash, CLK_GNUC89);
+
/* Mark as "unspecified". */
flag_bounds_check = -1;
}
-void
-lang_init ()
+static void
+c_init ()
{
- /* If still "unspecified", make it match -fbounded-pointers. */
- if (flag_bounds_check < 0)
- flag_bounds_check = flag_bounded_pointers;
+ c_common_lang_init ();
- /* If still unspecified, make it match pedantic && -std=c99. */
+ /* If still unspecified, make it match -std=c99
+ (allowing for -pedantic-errors). */
if (mesg_implicit_function_declaration < 0)
{
- if (pedantic && flag_isoc99)
+ if (flag_isoc99)
mesg_implicit_function_declaration = flag_pedantic_errors ? 2 : 1;
else
mesg_implicit_function_declaration = 0;
}
- /* the beginning of the file is a new line; check for # */
- /* With luck, we discover the real source file's name from that
- and put it in input_filename. */
-#if !USE_CPPLIB
- ungetc (check_newline (), finput);
-#endif
-
save_lang_status = &push_c_function_context;
restore_lang_status = &pop_c_function_context;
mark_lang_status = &mark_c_function_context;
lang_safe_from_p = &c_safe_from_p;
lang_printer = &c_tree_printer;
lang_expand_decl_stmt = &c_expand_decl_stmt;
+ lang_missing_noreturn_ok_p = &c_missing_noreturn_ok_p;
c_parse_init ();
}
-void
-lang_finish ()
-{
-}
-
const char *
lang_identify ()
{
}
tree
-maybe_objc_method_name (decl)
- tree decl ATTRIBUTE_UNUSED;
-{
- return 0;
-}
-
-tree
maybe_building_objc_message_expr ()
{
return 0;
tree body;
start_function (void_list_node_1,
- build_parse_node (CALL_EXPR, fnname,
- tree_cons (NULL_TREE, NULL_TREE,
- void_list_node_1),
- NULL_TREE),
+ build_nt (CALL_EXPR, fnname,
+ tree_cons (NULL_TREE, NULL_TREE, void_list_node_1),
+ NULL_TREE),
NULL_TREE, NULL_TREE);
store_parm_decls ();
tree block;
scope = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
- block = poplevel (0, 0, 0);
+ block = poplevel (0, 0, 0);
SCOPE_STMT_BLOCK (TREE_PURPOSE (scope)) = block;
SCOPE_STMT_BLOCK (TREE_VALUE (scope)) = block;
- RECHAIN_STMTS (body, COMPOUND_BODY (body));
+ RECHAIN_STMTS (body, COMPOUND_BODY (body));
finish_function (0);
}
finish_cdtor (body);
}
#endif
-
+
if (back_end_hook)
(*back_end_hook) (getdecls ());
+
+ if (flag_dump_translation_unit)
+ dump_node_to_file (getdecls (), flag_dump_translation_unit);
}
/* Called during diagnostic message formatting process to print a
return 0;
}
}
+
+static int
+c_missing_noreturn_ok_p (decl)
+ tree decl;
+{
+ /* A missing noreturn is not ok for freestanding implementations and
+ ok for the `main' function in hosted implementations. */
+ return flag_hosted && MAIN_NAME_P (DECL_ASSEMBLER_NAME (decl));
+}