diff options
Diffstat (limited to 'package/boot/uboot-lantiq/patches/0028-add-gcc5-support.patch')
| -rw-r--r-- | package/boot/uboot-lantiq/patches/0028-add-gcc5-support.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/0028-add-gcc5-support.patch b/package/boot/uboot-lantiq/patches/0028-add-gcc5-support.patch new file mode 100644 index 0000000000..3ae76a7ff6 --- /dev/null +++ b/package/boot/uboot-lantiq/patches/0028-add-gcc5-support.patch @@ -0,0 +1,87 @@ +From 478b02f1a7043b673565075ea5016376f3293b23 Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Sat, 7 Feb 2015 22:52:40 +0100 +Subject: [PATCH] Add linux/compiler-gcc5.h to fix builds with gcc5 + +Add linux/compiler-gcc5/h from the kernel sources at: + +commit 5631b8fba640a4ab2f8a954f63a603fa34eda96b +Author: Steven Noonan <steven@uplinklabs.net> +Date: Sat Oct 25 15:09:42 2014 -0700 + + compiler/gcc4+: Remove inaccurate comment about 'asm goto' miscompiles + +Signed-off-by: Hans de Goede <hdegoede@redhat.com> +--- + include/linux/compiler-gcc5.h | 65 +++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 65 insertions(+) + create mode 100644 include/linux/compiler-gcc5.h + +--- /dev/null ++++ b/include/linux/compiler-gcc5.h +@@ -0,0 +1,65 @@ ++#ifndef __LINUX_COMPILER_H ++#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead." ++#endif ++ ++#define __used __attribute__((__used__)) ++#define __must_check __attribute__((warn_unused_result)) ++#define __compiler_offsetof(a, b) __builtin_offsetof(a, b) ++ ++/* Mark functions as cold. gcc will assume any path leading to a call ++ to them will be unlikely. This means a lot of manual unlikely()s ++ are unnecessary now for any paths leading to the usual suspects ++ like BUG(), printk(), panic() etc. [but let's keep them for now for ++ older compilers] ++ ++ Early snapshots of gcc 4.3 don't support this and we can't detect this ++ in the preprocessor, but we can live with this because they're unreleased. ++ Maketime probing would be overkill here. ++ ++ gcc also has a __attribute__((__hot__)) to move hot functions into ++ a special section, but I don't see any sense in this right now in ++ the kernel context */ ++#define __cold __attribute__((__cold__)) ++ ++#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) ++ ++#ifndef __CHECKER__ ++# define __compiletime_warning(message) __attribute__((warning(message))) ++# define __compiletime_error(message) __attribute__((error(message))) ++#endif /* __CHECKER__ */ ++ ++/* ++ * Mark a position in code as unreachable. This can be used to ++ * suppress control flow warnings after asm blocks that transfer ++ * control elsewhere. ++ * ++ * Early snapshots of gcc 4.5 don't support this and we can't detect ++ * this in the preprocessor, but we can live with this because they're ++ * unreleased. Really, we need to have autoconf for the kernel. ++ */ ++#define unreachable() __builtin_unreachable() ++ ++/* Mark a function definition as prohibited from being cloned. */ ++#define __noclone __attribute__((__noclone__)) ++ ++/* ++ * Tell the optimizer that something else uses this function or variable. ++ */ ++#define __visible __attribute__((externally_visible)) ++ ++/* ++ * GCC 'asm goto' miscompiles certain code sequences: ++ * ++ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 ++ * ++ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek. ++ * ++ * (asm goto is automatically volatile - the naming reflects this.) ++ */ ++#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0) ++ ++#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP ++#define __HAVE_BUILTIN_BSWAP32__ ++#define __HAVE_BUILTIN_BSWAP64__ ++#define __HAVE_BUILTIN_BSWAP16__ ++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */ |