X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=compiler%2Fcompiler.h;h=4d92ac4949c4a5111df6ae5ba0fd36325281be49;hb=c473a9bd8fadf0b8e7521edcabb2204d87f35b04;hp=40e857c004c6e4304565ad1e446b4bffaf90eb35;hpb=029716a2f67245a6aad59cf8b52261fa39c8a07f;p=fio.git

diff --git a/compiler/compiler.h b/compiler/compiler.h
index 40e857c0..4d92ac49 100644
--- a/compiler/compiler.h
+++ b/compiler/compiler.h
@@ -1,6 +1,7 @@
 #ifndef FIO_COMPILER_H
 #define FIO_COMPILER_H
 
+/* IWYU pragma: begin_exports */
 #if __GNUC__ >= 4
 #include "compiler-gcc4.h"
 #elif __GNUC__ == 3
@@ -8,6 +9,7 @@
 #else
 #error Compiler too old, need gcc at least gcc 3.x
 #endif
+/* IWYU pragma: end_exports */
 
 #ifndef __must_check
 #define __must_check
@@ -33,9 +35,16 @@
 	1; \
 })
 
+
+#if defined(CONFIG_STATIC_ASSERT)
+#define compiletime_assert(condition, msg) _Static_assert(condition, msg)
+
+#elif !defined(CONFIG_DISABLE_OPTIMIZATIONS)
+
 #ifndef __compiletime_error
 #define __compiletime_error(message)
 #endif
+
 #ifndef __compiletime_error_fallback
 #define __compiletime_error_fallback(condition)	do { } while (0)
 #endif
@@ -55,4 +64,15 @@
 #define compiletime_assert(condition, msg) \
 	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
 
+#else
+
+#define compiletime_assert(condition, msg)	do { } while (0)
+
+#endif
+
+#ifdef FIO_INTERNAL
+#define ARRAY_SIZE(x)    (sizeof((x)) / (sizeof((x)[0])))
+#define FIELD_SIZE(s, f) (sizeof(((typeof(s))0)->f))
+#endif
+
 #endif