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| author | aj <aj@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-02 07:00:49 +0000 |
|---|---|---|
| committer | aj <aj@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-01-02 07:00:49 +0000 |
| commit | 5e6015b1f3ff29d87a0e5b6510a5abcb8790600f (patch) | |
| tree | 12f18ebddad6ed8db942da5167b01fafd5c86da5 /gcc/c-lang.c | |
| parent | 742e384c608e2e0f7936ca4f33f6f805bd0f97e6 (diff) | |
| download | gcc-5e6015b1f3ff29d87a0e5b6510a5abcb8790600f.tar.gz | |
* c-decl.c (c_decode_option): Remove support of
-Wmissing-noreturn.
* toplev.c (documented_lang_options): Remove -Wmissing-noreturn.
(W_options): Add -Wmissing-noreturn here.
* flow.c: Define lang_missing_noreturn_ok_p.
(check_function_return_warnings): Use it.
* c-common.h: Declare lang_missing_noreturn_ok_p.
* c-lang.c (c_missing_noreturn_ok_p): New function.
(lang_init): Set lang_missing_noreturn_ok_p.
* invoke.texi (Warning Options): Document this.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38612 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-lang.c')
| -rw-r--r-- | gcc/c-lang.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/gcc/c-lang.c b/gcc/c-lang.c index fb4dbee6116..52173917448 100644 --- a/gcc/c-lang.c +++ b/gcc/c-lang.c @@ -1,6 +1,6 @@ /* 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. @@ -37,10 +37,11 @@ Boston, MA 02111-1307, USA. */ #include "cpplib.h" static int c_tree_printer PARAMS ((output_buffer *)); +static int c_missing_noreturn_ok_p PARAMS ((tree)); /* Each of the functions defined here is an alternative to a function in objc-actions.c. */ - + int lang_decode_option (argc, argv) int argc; @@ -81,6 +82,7 @@ lang_init () 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 (); } @@ -186,8 +188,8 @@ start_cdtor (method_type) tree body; start_function (void_list_node_1, - build_parse_node (CALL_EXPR, fnname, - tree_cons (NULL_TREE, NULL_TREE, + build_parse_node (CALL_EXPR, fnname, + tree_cons (NULL_TREE, NULL_TREE, void_list_node_1), NULL_TREE), NULL_TREE, NULL_TREE); @@ -213,11 +215,11 @@ finish_cdtor (body) 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); } @@ -252,7 +254,7 @@ finish_file () finish_cdtor (body); } #endif - + if (back_end_hook) (*back_end_hook) (getdecls ()); @@ -294,3 +296,12 @@ c_tree_printer (buffer) 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)); +} |