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authorDJ Delorie <dj@redhat.com>2003-03-18 02:09:54 +0300
committerDJ Delorie <dj@redhat.com>2003-03-18 02:09:54 +0300
commit259db8923868916a441bb15d28e566e054db9bea (patch)
tree1df2f7c7573a971bce83fa258370f4f7029dccbb
parent298b2249e60ace3a77a10ff7c143a9614385e0df (diff)
merge from gcc
-rw-r--r--include/ChangeLog8
-rw-r--r--include/ansidecl.h30
2 files changed, 37 insertions, 1 deletions
diff --git a/include/ChangeLog b/include/ChangeLog
index 64e73c624..0e558d3c1 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,11 @@
+2003-03-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
+ * ansidecl.h (ATTRIBUTE_NONNULL, ATTRIBUTE_NULL_PRINTF,
+ ATTRIBUTE_NULL_PRINTF_1, ATTRIBUTE_NULL_PRINTF_2,
+ ATTRIBUTE_NULL_PRINTF_3, ATTRIBUTE_NULL_PRINTF_4,
+ ATTRIBUTE_NULL_PRINTF_5): New.
+ (ATTRIBUTE_PRINTF): Add ATTRIBUTE_NONNULL.
+
2003-03-17 Jan Hubicka <jh@suse.cz>
* hashtab.h (htab_traverse_noresize): Declare.
diff --git a/include/ansidecl.h b/include/ansidecl.h
index d169b4f50..f8f2d737b 100644
--- a/include/ansidecl.h
+++ b/include/ansidecl.h
@@ -268,8 +268,21 @@ So instead we use the macro below and test it against specific values. */
#define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif /* ATTRIBUTE_NORETURN */
+/* Attribute `nonnull' was valid as of gcc 3.3. */
+#ifndef ATTRIBUTE_NONNULL
+# if (GCC_VERSION >= 3003)
+# define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
+# else
+# define ATTRIBUTE_NONNULL(m)
+# endif /* GNUC >= 3.3 */
+#endif /* ATTRIBUTE_NONNULL */
+
+/* Use ATTRIBUTE_PRINTF when the format specifier must not be NULL.
+ This was the case for the `printf' format attribute by itself
+ before GCC 3.3, but as of 3.3 we need to add the `nonnull'
+ attribute to retain this behavior. */
#ifndef ATTRIBUTE_PRINTF
-#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n)))
+#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n))) ATTRIBUTE_NONNULL(m)
#define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
#define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
#define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
@@ -277,6 +290,21 @@ So instead we use the macro below and test it against specific values. */
#define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
#endif /* ATTRIBUTE_PRINTF */
+/* Use ATTRIBUTE_NULL_PRINTF when the format specifier may be NULL. A
+ NULL format specifier was allowed as of gcc 3.3. */
+#ifndef ATTRIBUTE_NULL_PRINTF
+# if (GCC_VERSION >= 3003)
+# define ATTRIBUTE_NULL_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n)))
+# else
+# define ATTRIBUTE_NULL_PRINTF(m, n)
+# endif /* GNUC >= 3.3 */
+# define ATTRIBUTE_NULL_PRINTF_1 ATTRIBUTE_NULL_PRINTF(1, 2)
+# define ATTRIBUTE_NULL_PRINTF_2 ATTRIBUTE_NULL_PRINTF(2, 3)
+# define ATTRIBUTE_NULL_PRINTF_3 ATTRIBUTE_NULL_PRINTF(3, 4)
+# define ATTRIBUTE_NULL_PRINTF_4 ATTRIBUTE_NULL_PRINTF(4, 5)
+# define ATTRIBUTE_NULL_PRINTF_5 ATTRIBUTE_NULL_PRINTF(5, 6)
+#endif /* ATTRIBUTE_NULL_PRINTF */
+
/* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions. This feature didn't work properly before
gcc 2.8. */