Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version)

[J-linux.git] / include / linux / compiler_attributes.h

diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
index ee19cebabcf5a0a7580d3b62ddedcfb0d309df8a..e6ec634039658e714f1c9ad9f2854580d646a318 100644 (file)
--- a/include/linux/compiler_attributes.h
+++ b/include/linux/compiler_attributes.h
@@ -116,6 +116,17 @@
 # define __designated_init
 #endif
 
+/*
+ * Optional: only supported since clang >= 14.0
+ *
+ *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-error-function-attribute
+ */
+#if __has_attribute(__error__)
+# define __compiletime_error(msg)       __attribute__((__error__(msg)))
+#else
+# define __compiletime_error(msg)
+#endif
+
 /*
  * Optional: not supported by clang
  *
@@ -277,6 +288,17 @@
  */
 #define __must_check                    __attribute__((__warn_unused_result__))
 
+/*
+ * Optional: only supported since clang >= 14.0
+ *
+ *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-warning-function-attribute
+ */
+#if __has_attribute(__warning__)
+# define __compiletime_warning(msg)     __attribute__((__warning__(msg)))
+#else
+# define __compiletime_warning(msg)
+#endif
+
 /*
  *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-weak-function-attribute
  *   gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-weak-variable-attribute