u-boot: add upstream patches

Signed-off-by: Stephan Raue <stephan@openelec.tv>
This commit is contained in:
Stephan Raue 2015-04-09 09:49:17 +02:00
parent 9817e95cc1
commit 78d4075360
2 changed files with 149 additions and 0 deletions

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@ -0,0 +1,93 @@
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
diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
new file mode 100644
index 0000000..c8c5659
--- /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 */
--
1.7.10.4

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[RFC 08/10] inline: use the gcc inline version instead of the c99 one.
Jeroen Hofstee jeroen at myspectrum.nl
Sat May 31 22:32:22 CEST 2014
Previous message: [U-Boot] [RFC 07/10] ARM: make gd a function a function for clang
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
---
This fixes errors like:
make[1]: Entering directory `/home/jeroen/software/u-boot/arch/arm/cpu/armv7/omap-common'
arm-linux-gnueabi-ld.bfd -r -o libomap-common.o reset.o timer.o utils.o
timer.o: In function `get_tbclk':
/home/jeroen/software/u-boot/include/asm/io.h:81: multiple definition of `__raw_writesb'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:81: first defined here
timer.o: In function `__udelay':
/home/jeroen/software/u-boot/include/asm/io.h:88: multiple definition of `__raw_writesw'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:88: first defined here
timer.o: In function `get_ticks':
/home/jeroen/software/u-boot/include/asm/io.h:95: multiple definition of `__raw_writesl'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:95: first defined here
timer.o: In function `__raw_readsb':
/home/jeroen/software/u-boot/include/asm/io.h:102: multiple definition of `__raw_readsb'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:102: first defined here
timer.o: In function `__raw_readsw':
/home/jeroen/software/u-boot/include/asm/io.h:109: multiple definition of `__raw_readsw'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:109: first defined here
timer.o: In function `__raw_readsl':
/home/jeroen/software/u-boot/include/asm/io.h:116: multiple definition of `__raw_readsl'
reset.o:/home/jeroen/software/u-boot/include/asm/io.h:116: first defined here
make[1]: *** [libomap-common.o] Error 1
make[1]: Leaving directory `/home/jeroen/software/u-boot/arch/arm/cpu/armv7/omap-common'
make: *** [arch/arm/cpu/armv7/omap-common/libomap-common.o] Error 2
---
include/linux/compiler-gcc.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 9896e54..99c6dcc 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -44,9 +44,10 @@
*/
#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
!defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
-# define inline inline __attribute__((always_inline))
-# define __inline__ __inline__ __attribute__((always_inline))
-# define __inline __inline __attribute__((always_inline))
+/* XXX: check __GNUC_STDC_INLINE__, fix line length */
+# define inline inline __attribute__((always_inline)) __attribute__((__gnu_inline__))
+# define __inline__ __inline__ __attribute__((always_inline)) __attribute__((__gnu_inline__))
+# define __inline __inline __attribute__((always_inline)) __attribute__((__gnu_inline__))
#endif
#define __deprecated __attribute__((deprecated))
--
1.8.3.2