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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 cd4bbe8242bd..bdb80c4aef6e 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -235,6 +235,7 @@
235#endif /* GCC_VERSION >= 40500 */ 235#endif /* GCC_VERSION >= 40500 */
236 236
237#if GCC_VERSION >= 40600 237#if GCC_VERSION >= 40600
238
238/* 239/*
239 * When used with Link Time Optimization, gcc can optimize away C functions or 240 * When used with Link Time Optimization, gcc can optimize away C functions or
240 * variables which are referenced only from assembly code. __visible tells the 241 * variables which are referenced only from assembly code. __visible tells the
@@ -242,7 +243,17 @@
242 * this. 243 * this.
243 */ 244 */
244#define __visible __attribute__((externally_visible)) 245#define __visible __attribute__((externally_visible))
245#endif 246
247/*
248 * RANDSTRUCT_PLUGIN wants to use an anonymous struct, but it is only
249 * possible since GCC 4.6. To provide as much build testing coverage
250 * as possible, this is used for all GCC 4.6+ builds, and not just on
251 * RANDSTRUCT_PLUGIN builds.
252 */
253#define randomized_struct_fields_start struct {
254#define randomized_struct_fields_end } __randomize_layout;
255
256#endif /* GCC_VERSION >= 40600 */
246 257
247 258
248#if GCC_VERSION >= 40900 && !defined(__CHECKER__) 259#if GCC_VERSION >= 40900 && !defined(__CHECKER__)