diff options
Diffstat (limited to 'meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch')
-rw-r--r-- | meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch new file mode 100644 index 0000000..13a89fb --- /dev/null +++ b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch | |||
@@ -0,0 +1,99 @@ | |||
1 | From 376075b9598d602950b73cc78743735585c0a18c Mon Sep 17 00:00:00 2001 | ||
2 | From: Sasha Levin <sasha.levin@oracle.com> | ||
3 | Date: Mon, 13 Oct 2014 15:51:05 -0700 | ||
4 | Subject: [PATCH] kernel: add support for gcc 5 | ||
5 | |||
6 | commit 71458cfc782eafe4b27656e078d379a34e472adf upstream. | ||
7 | |||
8 | We're missing include/linux/compiler-gcc5.h which is required now | ||
9 | because gcc branched off to v5 in trunk. | ||
10 | |||
11 | Just copy the relevant bits out of include/linux/compiler-gcc4.h, | ||
12 | no new code is added as of now. | ||
13 | |||
14 | This fixes a build error when using gcc 5. | ||
15 | |||
16 | Signed-off-by: Sasha Levin <sasha.levin@oracle.com> | ||
17 | Signed-off-by: Andrew Morton <akpm@linux-foundation.org> | ||
18 | Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | ||
19 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | ||
20 | --- | ||
21 | include/linux/compiler-gcc5.h | 66 +++++++++++++++++++++++++++++++++++++++++++ | ||
22 | 1 file changed, 66 insertions(+) | ||
23 | create mode 100644 include/linux/compiler-gcc5.h | ||
24 | |||
25 | diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h | ||
26 | new file mode 100644 | ||
27 | index 0000000..cdd1cc2 | ||
28 | --- /dev/null | ||
29 | +++ b/include/linux/compiler-gcc5.h | ||
30 | @@ -0,0 +1,66 @@ | ||
31 | +#ifndef __LINUX_COMPILER_H | ||
32 | +#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead." | ||
33 | +#endif | ||
34 | + | ||
35 | +#define __used __attribute__((__used__)) | ||
36 | +#define __must_check __attribute__((warn_unused_result)) | ||
37 | +#define __compiler_offsetof(a, b) __builtin_offsetof(a, b) | ||
38 | + | ||
39 | +/* Mark functions as cold. gcc will assume any path leading to a call | ||
40 | + to them will be unlikely. This means a lot of manual unlikely()s | ||
41 | + are unnecessary now for any paths leading to the usual suspects | ||
42 | + like BUG(), printk(), panic() etc. [but let's keep them for now for | ||
43 | + older compilers] | ||
44 | + | ||
45 | + Early snapshots of gcc 4.3 don't support this and we can't detect this | ||
46 | + in the preprocessor, but we can live with this because they're unreleased. | ||
47 | + Maketime probing would be overkill here. | ||
48 | + | ||
49 | + gcc also has a __attribute__((__hot__)) to move hot functions into | ||
50 | + a special section, but I don't see any sense in this right now in | ||
51 | + the kernel context */ | ||
52 | +#define __cold __attribute__((__cold__)) | ||
53 | + | ||
54 | +#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) | ||
55 | + | ||
56 | +#ifndef __CHECKER__ | ||
57 | +# define __compiletime_warning(message) __attribute__((warning(message))) | ||
58 | +# define __compiletime_error(message) __attribute__((error(message))) | ||
59 | +#endif /* __CHECKER__ */ | ||
60 | + | ||
61 | +/* | ||
62 | + * Mark a position in code as unreachable. This can be used to | ||
63 | + * suppress control flow warnings after asm blocks that transfer | ||
64 | + * control elsewhere. | ||
65 | + * | ||
66 | + * Early snapshots of gcc 4.5 don't support this and we can't detect | ||
67 | + * this in the preprocessor, but we can live with this because they're | ||
68 | + * unreleased. Really, we need to have autoconf for the kernel. | ||
69 | + */ | ||
70 | +#define unreachable() __builtin_unreachable() | ||
71 | + | ||
72 | +/* Mark a function definition as prohibited from being cloned. */ | ||
73 | +#define __noclone __attribute__((__noclone__)) | ||
74 | + | ||
75 | +/* | ||
76 | + * Tell the optimizer that something else uses this function or variable. | ||
77 | + */ | ||
78 | +#define __visible __attribute__((externally_visible)) | ||
79 | + | ||
80 | +/* | ||
81 | + * GCC 'asm goto' miscompiles certain code sequences: | ||
82 | + * | ||
83 | + * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 | ||
84 | + * | ||
85 | + * Work it around via a compiler barrier quirk suggested by Jakub Jelinek. | ||
86 | + * Fixed in GCC 4.8.2 and later versions. | ||
87 | + * | ||
88 | + * (asm goto is automatically volatile - the naming reflects this.) | ||
89 | + */ | ||
90 | +#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0) | ||
91 | + | ||
92 | +#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP | ||
93 | +#define __HAVE_BUILTIN_BSWAP32__ | ||
94 | +#define __HAVE_BUILTIN_BSWAP64__ | ||
95 | +#define __HAVE_BUILTIN_BSWAP16__ | ||
96 | +#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */ | ||
97 | -- | ||
98 | 1.9.1 | ||
99 | |||