mirror of
https://github.com/linux-sunxi/meta-sunxi.git
synced 2024-12-27 05:28:22 +01:00
Merge pull request #117 from Noxenious/master
linux-sunxi: add patches for gcc5
This commit is contained in:
commit
1cdd083d2b
71
recipes-kernel/linux/linux-sunxi/0001-compiler-gcc5.patch
Normal file
71
recipes-kernel/linux/linux-sunxi/0001-compiler-gcc5.patch
Normal file
@ -0,0 +1,71 @@
|
|||||||
|
Index: git/include/linux/compiler-gcc5.h
|
||||||
|
===================================================================
|
||||||
|
--- git/include/linux/compiler-gcc5.h 2015-09-19 20:11:27.999423338 +0200
|
||||||
|
+++ git/include/linux/compiler-gcc5.h 2015-09-23 10:26:05.000000000 +0200
|
||||||
|
@@ -0,0 +1,66 @@
|
||||||
|
+#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.
|
||||||
|
+ * Fixed in GCC 4.8.2 and later versions.
|
||||||
|
+ *
|
||||||
|
+ * (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 */
|
@ -0,0 +1,50 @@
|
|||||||
|
From ef4fea130eeb70eff4f3a549fd3f6e9b11437550 Mon Sep 17 00:00:00 2001
|
||||||
|
From: ZaneZam <cyxman@yahoo.com>
|
||||||
|
Date: Thu, 26 Mar 2015 14:50:10 +0100
|
||||||
|
Subject: [PATCH] arm: LLVMLinux: use static inline in ARM ftrace.h
|
||||||
|
|
||||||
|
With compilers which follow the C99 standard (like modern versions of gcc and
|
||||||
|
clang), "extern inline" does the wrong thing (emits code for an externally
|
||||||
|
linkable version of the inline function). In this case using static inline
|
||||||
|
and removing the NULL version of return_address in return_address.c does
|
||||||
|
the right thing.
|
||||||
|
|
||||||
|
Signed-off-by: Behan Webster <behanw@converseincode.com>
|
||||||
|
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
|
||||||
|
|
||||||
|
source: http://www.serverphorums.com/read.php?12,880351,880351#msg-880351
|
||||||
|
---
|
||||||
|
arch/arm/include/asm/ftrace.h | 2 +-
|
||||||
|
arch/arm/kernel/return_address.c | 2 ++
|
||||||
|
2 files changed, 3 insertions(+), 1 deletion(-)
|
||||||
|
|
||||||
|
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
|
||||||
|
index f89515a..2bb8cac 100644
|
||||||
|
--- a/arch/arm/include/asm/ftrace.h
|
||||||
|
+++ b/arch/arm/include/asm/ftrace.h
|
||||||
|
@@ -45,7 +45,7 @@ void *return_address(unsigned int);
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
-extern inline void *return_address(unsigned int level)
|
||||||
|
+static inline void *return_address(unsigned int level)
|
||||||
|
{
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c
|
||||||
|
index f1aef84..49477f0 100644
|
||||||
|
--- a/arch/arm/kernel/return_address.c
|
||||||
|
+++ b/arch/arm/kernel/return_address.c
|
||||||
|
@@ -62,10 +62,12 @@ void *return_address(unsigned int level)
|
||||||
|
/* #warning "TODO: return_address should use unwind tables" */
|
||||||
|
#endif
|
||||||
|
|
||||||
|
+/*
|
||||||
|
void *return_address(unsigned int level)
|
||||||
|
{
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
+*/
|
||||||
|
|
||||||
|
#endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
|
||||||
|
|
@ -13,6 +13,8 @@ MACHINE_KERNEL_PR_append = "a"
|
|||||||
|
|
||||||
SRC_URI += "git://github.com/linux-sunxi/linux-sunxi.git;branch=sunxi-3.4;protocol=git \
|
SRC_URI += "git://github.com/linux-sunxi/linux-sunxi.git;branch=sunxi-3.4;protocol=git \
|
||||||
http://archlinuxarm.org/builder/src/0001-cgroup-add-xattr-support-sunxi.patch;name=cgroup-patch \
|
http://archlinuxarm.org/builder/src/0001-cgroup-add-xattr-support-sunxi.patch;name=cgroup-patch \
|
||||||
|
file://0001-compiler-gcc5.patch \
|
||||||
|
file://0002-use-static-inline-in-ARM-ftrace.patch
|
||||||
file://defconfig \
|
file://defconfig \
|
||||||
"
|
"
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user