diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/compiler.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index a1df48993..9974e409e 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -3,6 +3,9 @@ #ifndef __ASSEMBLY__ +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var)) + #ifdef __CHECKER__ # define __user __attribute__((noderef, address_space(1))) # define __kernel __attribute__((address_space(0))) |