From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/linux/compiler-gcc.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 include/linux/compiler-gcc.h (limited to 'include/linux/compiler-gcc.h') diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h new file mode 100644 index 000000000000..152734055403 --- /dev/null +++ b/include/linux/compiler-gcc.h @@ -0,0 +1,17 @@ +/* Never include this file directly. Include instead. */ + +/* + * Common definitions for all gcc versions go here. + */ + + +/* Optimization barrier */ +/* The "volatile" is due to gcc bugs */ +#define barrier() __asm__ __volatile__("": : :"memory") + +/* This macro obfuscates arithmetic on a variable address so that gcc + shouldn't recognize the original var, and make assumptions about it */ +#define RELOC_HIDE(ptr, off) \ + ({ unsigned long __ptr; \ + __asm__ ("" : "=g"(__ptr) : "0"(ptr)); \ + (typeof(ptr)) (__ptr + (off)); }) -- cgit v1.2.3