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-rw-r--r--include/linux/compiler-gcc.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index c28cedde973f..71b86a5d3061 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -237,6 +237,7 @@
237#endif /* GCC_VERSION >= 40500 */ 237#endif /* GCC_VERSION >= 40500 */
238 238
239#if GCC_VERSION >= 40600 239#if GCC_VERSION >= 40600
240
240/* 241/*
241 * When used with Link Time Optimization, gcc can optimize away C functions or 242 * When used with Link Time Optimization, gcc can optimize away C functions or
242 * variables which are referenced only from assembly code. __visible tells the 243 * variables which are referenced only from assembly code. __visible tells the
@@ -244,7 +245,17 @@
244 * this. 245 * this.
245 */ 246 */
246#define __visible __attribute__((externally_visible)) 247#define __visible __attribute__((externally_visible))
247#endif 248
249/*
250 * RANDSTRUCT_PLUGIN wants to use an anonymous struct, but it is only
251 * possible since GCC 4.6. To provide as much build testing coverage
252 * as possible, this is used for all GCC 4.6+ builds, and not just on
253 * RANDSTRUCT_PLUGIN builds.
254 */
255#define randomized_struct_fields_start struct {
256#define randomized_struct_fields_end } __randomize_layout;
257
258#endif /* GCC_VERSION >= 40600 */
248 259
249 260
250#if GCC_VERSION >= 40900 && !defined(__CHECKER__) 261#if GCC_VERSION >= 40900 && !defined(__CHECKER__)