diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index d6e8ac3..206c7718 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -439,6 +439,18 @@ int warn_multichar = 1; #endif int dollars_in_ident = DOLLARS_IN_IDENTIFIERS; +/* States indicating how grokdeclarator() should handle declspecs marked + with __attribute__((deprecated)). An object declared as + __attribute__((deprecated)) suppresses warnings of uses of other + deprecated items. */ + +enum deprecated_states { + DEPRECATED_NORMAL, + DEPRECATED_SUPPRESS +}; + +static enum deprecated_states deprecated_state = DEPRECATED_NORMAL; + /* Decode the string P as a language-specific option for C. Return the number of strings consumed. Should not complain if it does not recognise the option. */ @@ -3420,9 +3432,18 @@ start_decl (declarator, declspecs, initialized, attributes) int initialized; tree attributes; { - tree decl = grokdeclarator (declarator, declspecs, - NORMAL, initialized); + tree decl; tree tem; + + /* An object declared as __attribute__((deprecated)) suppresses + warnings of uses of other deprecated items. */ + if (lookup_attribute ("deprecated", attributes)) + deprecated_state = DEPRECATED_SUPPRESS; + + decl = grokdeclarator (declarator, declspecs, + NORMAL, initialized); + + deprecated_state = DEPRECATED_NORMAL; if (warn_main > 0 && TREE_CODE (decl) != FUNCTION_DECL && MAIN_NAME_P (DECL_NAME (decl))) @@ -4091,6 +4112,14 @@ grokdeclarator (declarator, declspecs, decl_context, initialized) { tree id = TREE_VALUE (spec); + /* If the entire declaration is itself tagged as deprecated then + suppress reports of deprecated items. */ + if (id && TREE_DEPRECATED (id)) + { + if (deprecated_state != DEPRECATED_SUPPRESS) + warn_deprecated_use (id); + } + if (id == ridpointers[(int) RID_INT]) explicit_int = 1; if (id == ridpointers[(int) RID_CHAR]) |