tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* Never include this file directly. Include <linux/compiler.h> instead. */
2
3/*
4 * Common definitions for all gcc versions go here.
5 */
6
7
8/* Optimization barrier */
9/* The "volatile" is due to gcc bugs */
10#define barrier() __asm__ __volatile__("": : :"memory")
11
12/* This macro obfuscates arithmetic on a variable address so that gcc
13 shouldn't recognize the original var, and make assumptions about it */
14#define RELOC_HIDE(ptr, off) \
15 ({ unsigned long __ptr; \
16 __asm__ ("" : "=g"(__ptr) : "0"(ptr)); \
17 (typeof(ptr)) (__ptr + (off)); })